Rename tgapi request structs

Add MaybeInaccessibleMessage tests and godoc
Update wiki and Bot API docs for the new naming

.gitignore

@@ -1,2 +1,6 @@
 .idea/
-test/
+.wiki/
+.vscode/
+test/
+.codex/
+.codex

AGENTS.md

@@ -0,0 +1,162 @@
+# AGENTS.md
+
+## Purpose
+This repository uses Codex for full-project Go code review, not diff-only review.
+
+When asked to review code, inspect the entire repository and use repository-wide context. Do not limit analysis to the latest commit, pull request diff, or recently changed files.
+
+## Review priorities
+Review the codebase with focus on:
+- correctness and reliability;
+- maintainability and architecture;
+- idiomatic Go;
+- testability;
+- performance where justified by code evidence;
+- security;
+- godoc quality.
+
+## Scope rules
+- Always review the whole repository unless the prompt explicitly narrows scope.
+- Check cross-package interactions, public APIs, package boundaries, and shared patterns.
+- Prefer concrete fixes over generic advice.
+- When feasible, make small, high-confidence improvements directly.
+- When uncertain, state confidence level and evidence.
+
+## Documentation languages
+- When creating or expanding project documentation, generate and maintain both English and Russian versions in the same turn whenever reasonably possible.
+- For wiki pages, prefer paired pages such as `Page.md` and `Page-RU.md`.
+- Keep English and Russian pages aligned in structure, major examples, and user-facing guidance.
+- If only one language can be updated safely in the current turn, explicitly say which language is lagging and why.
+
+## Wiki and backlog workflow
+- Treat the wiki as the primary place for large design ideas, architectural drafts, and framework backlog notes.
+- If the agent identifies a substantial new concept or design direction, such as scenes, callback agents, a webhook model, or another framework-level abstraction, the agent must ask the user whether it should also formalize that idea as a draft wiki page.
+- When the user agrees, prefer paired wiki pages such as `Page.md` and `Page-RU.md`, and clearly mark draft design pages with `DRAFT` when the API is not implemented or not yet stable.
+- Keep `TODO.md`, the wiki backlog pages, and `CHANGELOG.md` aligned when framework-level items move between planned and completed states in the main repository.
+- Wiki-only edits must never be added to `CHANGELOG.md`.
+- `AGENTS.md`-only edits must never be added to `CHANGELOG.md`.
+
+## Go review expectations
+Check for:
+- bugs, fragile logic, invalid assumptions, nil handling issues, resource leaks;
+- poor error handling;
+- misuse of context, cancellation, timeouts, retries, and cleanup;
+- race risks, deadlocks, blocking hazards, unsafe shared state;
+- non-idiomatic naming, APIs, interfaces, package structure, and error patterns;
+- unnecessary complexity, duplication, or weak abstractions;
+- obvious performance problems supported by the code;
+- security risks such as unsafe input handling, secret leakage, insecure logging, injection risks, and risky file or network operations.
+
+## Godoc rules
+Review comments for all declarations.
+
+### Exported declarations
+Exported types, funcs, methods, vars, and consts must have godoc comments.
+
+Each exported godoc comment must:
+- start with the identifier name;
+- explain the purpose or behavior;
+- be as short as possible without losing important meaning;
+- avoid repeating the signature mechanically;
+- stay high-signal and informative.
+
+### Unexported declarations
+Unexported types, funcs, methods, vars, and consts should generally not have godoc-style comments unless there is a strong reason.
+
+### Always report
+- missing godoc on exported declarations;
+- unnecessary godoc on unexported declarations;
+- comments that are too long, vague, redundant, or low-value;
+- comments that should be shortened or rewritten.
+
+When feasible, rewrite bad godoc into better versions.
+
+## Testing expectations
+Treat tests as a required part of review.
+
+- Assess existing test quality, not only test presence.
+- Add or propose as many useful tests as reasonably possible.
+- Prioritize public APIs, critical flows, edge cases, negative paths, boundary conditions, and concurrency-sensitive logic.
+- Prefer table-driven tests where appropriate.
+- Add regression tests for bugs you find.
+- If a case is hard to test directly, explain the gap and the best test strategy.
+
+## Commands
+Before finalizing changes, run the relevant project checks when available:
+- build
+- tests
+- lint
+- static analysis
+
+Prefer the repository’s documented commands. If multiple choices exist, use the most standard and least destructive ones first.
+
+## Versioning and changelog
+- After every code or documentation change in the main repository, update `CHANGELOG.md`.
+- Changes made only inside the `.wiki/` repository must not be added to `CHANGELOG.md`.
+- Changes made only in `AGENTS.md` must not be added to `CHANGELOG.md`.
+- Add changes only to the section for the next version after the latest published git tag.
+- The agent must check the latest published tag, `CHANGELOG.md`, and `utils/version.go` before editing the changelog.
+- The agent must verify that the target changelog version matches the version declared in `utils/version.go`.
+- If the latest published tag is, for example, `v1.0.0`, and `CHANGELOG.md` does not yet contain the next version section, the agent must stop and ask the user which version the change belongs to:
+  1. `v1.0.1`
+  2. `v1.1.0`
+  3. `v2.0.0`
+- The agent must not guess the next version when that section is missing.
+- If the user-selected version does not match `utils/version.go`, the agent must warn about the mismatch and require the version file to be updated before proceeding.
+- Changelog entries must describe all user-visible behavior changes made in the turn, including API additions, fixes, behavior changes, and breaking changes.
+- When a framework backlog item recorded in `TODO.md` is completed, the agent must also update the backlog status using the existing format:
+  1. move the completed item into the top of the `Done` section;
+  2. replace the numbered backlog label with a version tag, for example `1. Scene Model` becomes `[v2.0.0] Scene Model`;
+  3. keep the item title and descriptive notes aligned with the corresponding `CHANGELOG.md` entry.
+- The agent must treat `TODO.md` and `CHANGELOG.md` as linked records: a completed backlog item should not be left in one file as done and in the other as still pending or undocumented.
+
+## Breaking changes policy
+- The agent must detect potential breaking changes before editing public APIs.
+- Breaking changes are forbidden unless the selected target version is a new major version.
+- If the requested change is breaking and the user did not bump the major version, the agent must stop and warn that the change is not allowed under the current version.
+- In that case, the agent must offer only these options:
+  1. do not make the breaking change;
+  2. introduce a backward-compatible alternative such as a new method, function, type, or struct, but only if that keeps the codebase reasonably small and clear;
+  3. bump the major version and then apply the breaking change.
+- Prefer additive compatibility over signature changes when the additive option is small and maintainable.
+- Example: if a method like `ctx.answer(...)` needs an extra parameter, the agent must either require a major-version bump or add a new method that keeps the old method working.
+
+## Commit message format
+- When the user asks for a commit message, the agent must produce it in this format:
+  1. a short summary line;
+  2. up to three additional lines with only the most important changes;
+  3. each additional line must start on its own new line.
+- The agent must output the commit message as a plain multiline block that the user can copy directly.
+- Do not collapse the lines into a paragraph, bullet list, or wrapped prose explanation.
+- Keep commit text concise and high-signal.
+- Do not turn commit messages into changelogs.
+
+## Commit signing
+- All commits created by the agent must be GPG-signed.
+- If commit signing or pushing requires leaving the sandbox, the agent must request escalation explicitly before running the command.
+- If a signed commit cannot be created successfully, the agent must report the failure clearly and stop instead of creating an unsigned fallback commit.
+
+## Output format
+For repo-wide review tasks, structure the result as:
+
+1. Overall summary
+2. Critical findings
+3. Major findings
+4. Minor findings
+5. Godoc issues
+6. Test gaps and added/proposed tests
+7. Good decisions worth keeping
+8. Summary of concrete changes made
+
+For each finding include:
+- location;
+- issue;
+- why it matters;
+- recommended fix.
+
+## Working style
+- Be direct, specific, and action-oriented.
+- Do not stop at style-only feedback.
+- Use full repository context before drawing conclusions.
+- Prefer minimal, high-confidence patches.
+- Preserve behavior unless intentionally fixing a bug.

CHANGELOG.md

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+# Changelog
+
+## v1.0.0-rc.14
+
+### Bot API 9.6
+
+#### Managed Bots
+- Added the field can_manage_bots to the class User.
+- Added the class KeyboardButtonRequestManagedBot and the field request_managed_bot to the class KeyboardButton.
+- Added the class ManagedBotCreated and the field managed_bot_created to the class Message.
+- Added updates about the creation of managed bots and the change of their token, represented by the class ManagedBotUpdated and the field managed_bot in the class Update.
+- Added the methods getManagedBotToken and replaceManagedBotToken.
+- Added the class PreparedKeyboardButton and the method savePreparedKeyboardButton, allowing bots to request users, chats and managed bots from Mini Apps.
+- Added the method requestChat to the class WebApp.
+- Added support for https://t.me/newbot/{manager_bot_username}/{suggested_bot_username}[?name={suggested_bot_name}] links, allowing bots to request the creation of a managed bot via a link.
+
+### Polls
+- Added support for quizzes with multiple correct answers.
+- Replaced the field correct_option_id with the field correct_option_ids in the class Poll.
+- Replaced the parameter correct_option_id with the parameter correct_option_ids in the method sendPoll.
+- Allowed to pass allows_multiple_answers for quizzes in the method sendPoll.
+- Increased the maximum time for automatic poll closure to 2628000 seconds.
+- Added the field allows_revoting to the class Poll.
+- Added the parameter allows_revoting to the method sendPoll.
+- Added the parameter shuffle_options to the method sendPoll.
+- Added the parameter allow_adding_options to the method sendPoll.
+- Added the parameter hide_results_until_closes to the method sendPoll.
+- Added the fields description and description_entities to the class Poll.
+- Added the parameters description, description_parse_mode, and description_entities to the method sendPoll.
+- Added the field persistent_id to the class PollOption, representing a persistent identifier for the option.
+- Added the field option_persistent_ids to the class PollAnswer.
+- Added the fields added_by_user and added_by_chat to the class PollOption, denoting the user and the chat which added the option.
+- Added the field addition_date to the class PollOption, describing the date when the option was added.
+- Added the class PollOptionAdded and the field poll_option_added to the class Message.
+- Added the class PollOptionDeleted and the field poll_option_deleted to the class Message.
+- Added the field poll_option_id to the class ReplyParameters, allowing bots to reply to a specific poll option.
+- Added the field reply_to_poll_option_id to the class Message.
+- Allowed “date_time” entities in checklist title, checklist task text, TextQuote, ReplyParameters quote, sendGift, and giftPremiumSubscription.
+
+**More info**: https://core.telegram.org/bots/api#april-3-2026
+
+### Breaking Changes
+- Exported `tgapi` request parameter structs were renamed from the `*P` suffix to their method names. Update code such as `tgapi.SendMessageP{...}` to `tgapi.SendMessage{...}`.
+
+### Changed
+- *Support for Bot API 9.6*
+- Added missing godoc for recently introduced Telegram Bot API managed-bot, prepared-button, chat-owner, and video-quality exported declarations.
+- Renamed exported `tgapi` request parameter structs from the `*P` suffix to their method names, for example `SendMessageP` -> `SendMessage` and `SetWebhookP` -> `SetWebhook`.
+- Added missing godoc for the exported observer `Event` marker interface.
+- Webhook execution now shares the bot's queued update-dispatch path with polling, including worker-pool delivery, runner startup, single-use run semantics, and default fallback to bot-level update type filters when webhook-specific filters are not set.
+- Webhook godoc and the English and Russian READMEs now describe the bot-level webhook runtime, its single-use lifecycle, and the main `RunWebHookWithContext(...)` entry points more explicitly.
+- `Bot.Close()` once again releases only local resources and no longer deletes remote webhook registrations implicitly; explicit remote webhook teardown remains opt-in through `CloseWebHook()`.
+- Polling and webhook docs now explicitly state that a deployment must delete its webhook before switching from webhook delivery to long polling.
+- Webhook startup now validates path shape and TLS file count before remote webhook setup, and the shared webhook mux now serves both HTTP and TLS runtime paths consistently.
+- Webhook-related `tgapi` request params now use `int8` for `max_connections`, matching Telegram's `1..100` range and the higher-level webhook options API.
+- Webhook startup now also requires a non-empty `SecretToken` when the optional `/status` endpoint is enabled, preventing anonymous exposure of webhook operational metadata.
+- Webhook debug logging now records update metadata instead of dumping raw request bodies.
+- Package docs, README guidance, and core wiki pages now align with the current public API and runtime model, including `NoData`, `SetAppData(...)`, `SetL10n(...)`, `AddAppDataLoggerWriter(...)`, shared runner startup semantics, and the webhook runtime entry points.
+
+### Tests
+- Added regression coverage for webhook queue delivery, webhook runtime single-use behavior, runner startup in webhook mode, and default webhook `allowed_updates` inheritance from bot-level update type configuration.
+- Added regression coverage proving `Bot.Close()` does not make remote webhook delete requests.
+- Added webhook regression coverage for path validation, TLS file-count validation, oversized-body rejection, status-endpoint secret checks, and invalid TLS startup arguments.
+- Added webhook regression coverage proving `/status` cannot be enabled without a non-empty `SecretToken`.
+- Added regression coverage for Bot API 9.6 poll decoding, `managed_bot` update decoding, and structured `setChatMenuButton(...)` request serialization.
+- Added regression coverage for `MaybeInaccessibleMessage` accessible and inaccessible JSON decoding.
+
+## v1.0.0-rc.13
+
+### Added
+- `AsUserError(...)`, `AsInternalError(...)`, `IsUserError(...)`, and `IsInternalError(...)` for explicitly marking centralized handler errors as user-visible or internal-only without breaking the existing default error flow.
+- `Policy[T]`, `RequirePolicy(...)`, and built-in chat and callback policy helpers for expressing reusable authorization rules through the existing middleware pipeline.
+- `Bot.UsePolicy(...)` and `Plugin.UsePolicy(...)` as shorthand for registering policies as middleware.
+- `AllPolicies(...)`, `AnyPolicy(...)`, and `NotPolicy(...)` for composing reusable authorization rules without introducing a second execution pipeline.
+
+### Changed
+- Bot configuration mutators now treat the bot as configuration-frozen after the first run begins and ignore late mutation attempts for bot-level config such as prefixes, payload defaults, plugins, middleware, runners, localization, scene session wiring, and database context injection.
+- `MsgContext` godoc and field comments now describe the normalized update contract more explicitly, including when `Msg`, `From`, callback target fields, `Text`, and `Args` are expected to be populated.
+- `MsgContext` normalization now also carries `Chat` and `ChatID` for more Telegram update kinds, allowing policy and update handlers to rely on normalized chat identity outside message-only flows.
+- `MsgContext.Error(...)` and returned handler errors now suppress the automatic user reply when the error is explicitly marked with `AsInternalError(...)`, while keeping the previous user-visible default for unclassified errors.
+- Godoc, README examples, and regression-test naming now consistently describe the shared generic dependency model as app data, including `NoData` and `SetAppData(...)`.
+- Observer configuration now treats `SetObserver(nil)` as clearing instrumentation instead of leaving the previous observer attached.
+- Observer lifecycle events now cover generic update handlers and scene command, step, and message-fallback handlers with logical handler names and durations.
+- `RequirePolicy(...)` now emits `PolicyCheckedEvent` for both passed and denied policy decisions.
+- Scene command, step, and message-fallback flows now emit observer `ErrorEvent`s with scene-specific handler kinds and logical handler names.
+- Scene transition observer events now use the same transition payload for scene command, step, and message-fallback flows.
+- Observer error emission now also covers generic update handlers, callback payload decode failures, runner failures, and polling retries, including dedicated runner and polling handler kinds in `ErrorEvent`.
+- `TODO.md` and the framework backlog pages now mark the observability model as completed for `v1.0.0-rc.13`.
+- `tgapi.Chat.Type` now uses the typed `tgapi.ChatType` enum in public DTOs and tests instead of raw string casts.
+
+### Tests
+- Added regression coverage for the bot configuration freeze model, including ignored post-run mutations for core bot configuration methods and late registration paths.
+- Added table-driven update-contract coverage for `prepareUpdateCtx(...)`, including message-backed, callback-backed, user-backed, and no-user update kinds.
+- Added regression tests for policy middleware blocking, built-in private-chat policy decisions, normalized chat identity, and admin checks that use normalized `ChatID` and `FromID`.
+- Added regression tests for policy composition semantics, including all-of, any-of, and deny inversion with preserved internal failures.
+- Added regression tests for `SetObserver(...)`, `GetObserver()`, and clearing the observer with `SetObserver(nil)`.
+- Added observer regression tests for generic update-handler errors, callback payload decode failures, runner failure events, and polling retry emission.
+- Added observer regression tests for update and scene handler lifecycle events and `PolicyCheckedEvent` emission.
+- Added regression tests proving that `edited_message` and `edited_channel_post` stay out of command routing and continue through generic update handlers.
+- Added callback-routing regression tests for both chat-message and inline-message callback targets, including `CallbackQueryId`, `CallbackMsgId`, `InlineMsgId`, and payload-argument guarantees.
+- Added regression tests for the new error-visibility model in both message and callback flows, including silent internal-only errors and explicit user-visible callback replies.
+
+## v1.0.0-rc.12
+
+### Added
+- `AnswerLong(...)`, `AnswerLongf(...)`, `KeyboardLong(...)`, and `SplitMessageText(...)` for explicit plain-text splitting of long replies without changing the semantics of existing single-message helpers.
+- Centralized library-level validation errors in `errors.go`, including `ErrEmptyMessage`, `ErrMessageTooLong`, `ErrCaptionTooLong`, and context/target validation sentinels.
+- `Bot.GetPayloadType()`, `InlineKeyboard.GetPayloadType()`, and optional strict payload decoding via `BotOpts.StrictPayloadType` / `Bot.SetStrictPayloadType(...)`.
+- `MsgContext.BindArgs(...)` for binding positional command arguments into exported struct fields.
+- Binding sentinels `ErrBindArgsTargetNotPointer`, `ErrBindArgsTargetNotStruct`, `ErrBindArgsUnsupportedFieldType`, and `ErrBindArgsConversion`.
+- Work-in-progress scene/session support, including plugin scene registration, scoped scene sessions, scene entry/exit APIs on `MsgContext`, default in-memory session storage, scene-local routing before normal command handling, and state helpers on `SceneContext`.
+
+### Changed
+- `CommandExecutor` now returns `error`, and command, payload, and non-command update handlers now use centralized bot error handling for returned errors.
+- README and README_RU examples now use the new handler signature and document the long-message helpers.
+- README and README_RU now link to the project wiki, and the wiki now includes a page-priority tracker while content is being filled in.
+- README and README_RU now document scenes, session scopes, scene state helpers, and `SceneActionPass` semantics.
+- `TODO.md` and the framework backlog pages now group the remaining framework work into explicit priority 1, 2, and 3 buckets.
+- Payload-type comments and docs now distinguish between the bot's default payload type and keyboard-local overrides.
+- Scene runtime sentinel errors now have explicit godoc comments.
+- Public scene structs now document their exported fields more explicitly.
+- `MsgContext.Context()` now safely falls back to `context.Background()` when no request-scoped context is attached.
+- `MsgContext` reply, edit, callback, delete, action, and draft-limiter paths now use the context accessor instead of reaching into raw internal state.
+- Version constants were bumped to `v1.0.0-rc.12`.
+
+### Fixed
+- Message and caption validation now runs before Telegram API calls, rejecting empty messages, oversized message text, and oversized captions with stable sentinel errors.
+- Draft flushing and draft updates now reject oversized messages before sending invalid requests.
+- Callback payload decoding now optionally enforces strict type matching, while the default tolerant mode logs Base64-to-JSON decoding in debug mode and still accepts keyboard-local payload overrides.
+- Positional argument binding now leaves missing trailing struct fields at zero values, joins the remaining arguments into the final string field, and returns clearer binding errors.
+- Request-scoped contexts are now created per update handler execution and safely reused through `MsgContext.Context()` even for manually constructed test contexts.
+- Command and payload handlers now have regression coverage for end-to-end typed argument binding through the normal routing path.
+
+### Breaking Changes
+- `CommandExecutor[T]` changed from `func(ctx *MsgContext, db T)` to `func(ctx *MsgContext, db T) error`.
+- `Plugin.NewCommand(...)`, `Plugin.NewPayload(...)`, and `Plugin.AddUpdateHandler(...)` now require handlers with the new error-returning signature.
+
+### Tests
+- Added regression tests for `MsgContext.BindArgs(...)`, including scalar conversion, tail-string binding, zero-value trailing fields, invalid targets, unsupported field types, and end-to-end command/payload binding.
+- Added scene regression tests for runtime guards, scene-local command handling, and `SceneActionPass` preserving session state.
+- Added scene regression tests for message fallback handling, user-scoped session lookup without `Msg`, and custom `SessionStore` error propagation.
+
+## v1.0.0-rc.11
+
+### Fixed
+- `chat_boost` update decoding now accepts string `boost_id` values, matching the current Telegram Bot API schema and preventing polling failures on boosted-chat updates.
+
+## v1.0.0-rc.10
+
+### Added
+- `Plugin.AddUpdateHandler` for routing non-command Telegram updates by `tgapi.UpdateType`.
+- Derived `tgapi.Update.Type` assignment during JSON decoding, plus `tgapi.UpdateTypeUnknown` for unmatched payloads.
+- `tgapi.API.OpenFileByLink(...)` and `OpenFileByLinkWithContext(...)` for streaming downloads from Telegram's file server.
+- Regression tests for update dispatch, keyboard builders, localization fallback, runners, rate limiting, parse mode encoding, streaming downloads, and context isolation.
+- Regression tests for bot single-run enforcement, nil plugin registration, `L10n` concurrent access, `API.Close()` idle-connection cleanup, and `tgapi` worker-pool edge cases.
+- `SEMVER.md` documenting versioning expectations for the project.
+
+### Changed
+- `NewBot` now returns `(*Bot[T], error)` instead of terminating the host process on configuration or startup failures.
+- `Run` and `RunWithContext` now return errors; `RunWithContext` returns `ErrNoPrefixes` and `ErrNoPlugins` for invalid bot configuration.
+- Polling retries now use exponential backoff instead of busy-looping on repeated `getUpdates` failures.
+- `Bot` is now explicitly single-use; repeated `Run()` or `RunWithContext(...)` calls return `ErrBotAlreadyRun`.
+- Database context wiring now uses `T` consistently instead of forcing `*T`; shared dependencies should typically use pointer types such as `*sql.DB`.
+- `DatabaseContext`, `GetDBContext`, and `DbLogger` were updated to the new `T`-based dependency model.
+- `DatabaseContext(...)` now warns once when `T` is a value type, to highlight likely unintended copying of shared dependencies.
+- `AddDatabaseLoggerWriter(...)` now skips unset and nil database contexts instead of calling the writer with invalid values.
+- `L10n` is now safe for concurrent use and copies added dictionary entries to avoid external mutation after registration.
+- Plugin registration now snapshots commands, payloads, middlewares, and update handlers so later mutations of the original `*Plugin` do not leak into the bot.
+- `AddPlugins(...)` now skips nil plugin pointers instead of panicking.
+- `GetUpdateTypes()` now returns a copy instead of exposing internal slice state.
+- Update handling now normalizes `MsgContext` for more Telegram update kinds and routes plugin-level update handlers with isolated context copies.
+- `message`, `channel_post`, and `callback_query` remain on the command/payload flow; non-command updates can be handled through plugin update handlers.
+- Command auto-generation now validates Telegram command names with the correct character set and `1..32` length limit, and emits commands in deterministic sorted order.
+- Builder-style APIs were normalized to value returns for `NewCommandArg`, `NewMiddleware`, `NewRunner`, and `NewCallbackData`.
+- `MenuButton` replaced `BaseMenuButton`, and `GetChatMenuButton(...)` now returns the renamed type.
+- Several Telegram DTOs were tightened for optionality and serialization correctness, including `InputPaidMedia`, `MenuButton`, optional gift fields, and message entity slices.
+- `tgapi.NewRequest(...)`, `NewRequestWithChatID(...)`, `NewUploaderRequest(...)`, and `NewUploaderRequestWithChatID(...)` are now documented as low-level unsafe escape hatches rather than internal helpers.
+- `tgapi.API.Close()` now closes idle HTTP connections before releasing logger resources.
+- Multipart form encoding now writes scalar field bytes directly instead of converting through temporary strings.
+- README, README_RU, package docs, and exported godoc were updated to match the current APIs and concurrency/lifecycle model.
+- Version constants were bumped to `v1.0.0-rc.10`.
+
+### Fixed
+- Required command arguments are now enforced by declared argument index, not only by total required count.
+- `ParseNone` now omits `parse_mode` from JSON requests instead of serializing `"None"`.
+- Upload file type detection is now case-insensitive for file extensions.
+- Draft creation no longer panics when no limiter is configured, and draft flushing now rejects zero chat IDs before sending invalid requests.
+- Channel posts with `SenderChat` no longer panic in the command path and now preserve the expected `MsgContext` fields.
+- File logger initialization now falls back to stdout loggers instead of terminating the process on logger setup failures.
+- `GetChatMenuButton` and `SetChatMenuButton` now serialize `chat_id` correctly when omitted.
+- Update decoding tests now match the canonical `deleted_business_messages` model and no longer rely on the removed singular alias.
+
+### Breaking Changes
+- `NewBot[T](opts)` now returns `(*Bot[T], error)`.
+- `Run()` now returns `error`.
+- `RunWithContext(ctx)` now returns `error`.
+- `Run()` and `RunWithContext(ctx)` are now single-use per bot instance; create a new `Bot` after they return.
+- Database context handlers now receive `T` instead of `*T`. For shared dependencies, instantiate the bot with a pointer type, for example `Bot[*sql.DB]`.
+- `DatabaseContext(...)` now takes `T` instead of `*T`.
+- `GetDBContext()` now returns `T` instead of `*T`.
+- `DbLogger[T]` now receives `T` instead of `*T`.
+- `NewCommandArg(...)`, `NewMiddleware(...)`, `NewRunner(...)`, and `NewCallbackData(...)` now return values instead of pointers.
+- `BaseMenuButton` was renamed to `MenuButton`, and `GetChatMenuButton(...)` now returns `MenuButton`.
+- `tgapi.Update` no longer exposes the deprecated `DeletedBusinessMessage` alias; use `DeletedBusinessMessages`.
+
+### Tests
+- Added coverage for polling backoff helpers, command sorting, database logger safety checks, update handler routing, update-context isolation, channel posts with `SenderChat`, parse mode encoding, streaming downloads, and rate limiter behavior.
+
+## v1.0.0-rc.7
+
+### Added
+- Package-level logger helpers: `utils.CreateLogger(prefix, level)` and `utils.CreateFileLogger(prefix, level, filePath)`.
+- `MsgContext.Logger`, populated from the matched plugin and falling back to the bot logger.
+- Plugin lifecycle/configuration APIs: `SetLogger`, `RemoveLogger`, `SetOnClose`, and `Close`.
+- `Bot.CloseRemote(ctx)` as the explicit wrapper for Telegram Bot API close.
+
+### Changed
+- Logger initialization is now unified across `Bot`, `tgapi.API`, and `tgapi.Uploader`.
+- `Bot.Close()` now performs local resource teardown only and invokes `Plugin.Close()` for registered plugins.
+- Local `tgapi.API` shutdown was renamed to `Close()`.
+- Telegram Bot API close wrappers in `tgapi.API` were renamed to `CloseRemote()` and `CloseRemoteWithContext()`.
+- `Bot.Debug()` now updates log levels for the bot logger, request logger, and already registered plugin loggers.
+- `Bot.AddPlugins()` now creates a default plugin logger automatically when one is not provided.
+- `Bot.AddDatabaseLoggerWriter()` now also attaches the writer to already registered plugin loggers.
+- GoDoc was expanded for the new shutdown and logging APIs, and plugin registration is now documented as a configuration commit point.
+
+### Breaking Changes
+- `(*Bot).Close(ctx context.Context)` was replaced with `(*Bot).Close()`.
+- `(*tgapi.API).CloseApi()` was renamed to `(*tgapi.API).Close()`.
+- `(*tgapi.API).Close()` was renamed to `(*tgapi.API).CloseRemote()`.
+- `(*tgapi.API).CloseWithContext()` was renamed to `(*tgapi.API).CloseRemoteWithContext(ctx)`.
+
+### Migration
+- Replace `bot.Close(ctx)` with `bot.Close()`.
+- If you need Telegram Bot API close, use `bot.CloseRemote(ctx)`.
+- Replace `api.CloseApi()` with `api.Close()`.
+- Replace `api.Close()` with `api.CloseRemote()`.
+- Replace `api.CloseWithContext(ctx)` with `api.CloseRemoteWithContext(ctx)`.
+- Configure plugin loggers and `OnClose` hooks before calling `bot.AddPlugins(...)`.
+
+### Tests
+- Updated tests for the new shutdown and logging behavior.
+
+### Notes
+- Registering a plugin via `AddPlugins(...)` is a configuration commit point; the plugin should not be mutated through the original `*Plugin` afterward.
+- If plugin loggers must receive a database writer, call `AddDatabaseLoggerWriter(...)` after registering plugins.
+
+## v1.0.0-rc.4
+
+### Added
+- `WithContext` variants across `tgapi` API and uploader methods so callers can pass cancellation and deadline contexts consistently.
+- `UploaderCertificateType`, `UploadSetWebhookP`, `Uploader.SetWebhook(...)`, and `Uploader.SetWebhookWithContext(...)` for multipart webhook certificate uploads.
+- Missing media thumbnail fields where applicable.
+
+### Changed
+- GoDoc for context-aware methods was improved, and `See` references now point to method-specific Telegram Bot API anchors.
+- `EditMessageTextP` now includes `entities` and `link_preview_options`.
+- `EditMessageCaptionP` now includes `caption_entities` and `show_caption_above_media`.
+- `StopPollP` now uses `reply_markup` and no longer carries `inline_message_id`.
+- `SendStickerP` now includes reply and suggested-post related fields.
+- `SendDocumentP` now includes `disable_content_type_detection`.
+- `SendInvoiceP` no longer includes unsupported `business_connection_id`.
+- `SetWebhookP` no longer carries `certificate`; GoDoc now points to uploader-based certificate upload.
+- Existing non-context methods remain available, and the `Do(...)` call style is preserved.
+
+### Breaking Changes
+- Users sending webhook certificates through JSON `SetWebhookP.Certificate` must migrate to `Uploader.SetWebhook(...)`.
+
+## v1.0.0-rc.3
+
+### Fixed
+- The update polling loop no longer logs or retries after `context.Canceled` during shutdown.
+- Extra retry delay was removed from canceled polling requests so `RunWithContext` can exit immediately while stopping.
+
+### Changed
+- Shutdown behavior remains explicit: callers are still responsible for invoking `Close()` after `RunWithContext` returns.
+
+## v1.0.0-rc.2
+
+### Fixed
+- Fixed a shutdown crash caused by `DatabaseWriter` calling `Close()` through an uninitialized embedded logger writer.
+- Fixed bot shutdown hanging during Telegram long polling by making update polling use a cancelable context.
+- Reduced the chance of container termination with exit code `137` during shutdown by allowing `getUpdates` to stop promptly on cancellation.
+
+### Changed
+- Switched the project to use the local `laniakea` replacement for the shutdown fix.
+- Documentation now clarifies that `RunWithContext` does not close resources automatically and callers must invoke `Close()` explicitly.
+- `Updates` documentation now describes context-driven cancellation behavior.
+
+### Tests
+- Added regression tests for database logger writer shutdown behavior.

README.md

@@ -4,12 +4,14 @@
 
 [![Go Version](https://img.shields.io/badge/Go-1.24+-00ADD8?logo=go&style=flat-square)](https://go.dev/)
 [![License: GPL-3.0](https://img.shields.io/badge/License-GPL%203.0-blue.svg?style=flat-square)](LICENSE)
-![Gitea Release](https://img.shields.io/gitea/v/release/ScuroNeko/Laniakea?gitea_url=https%3A%2F%2Fgit.nix13.pw&sort=semver&display_name=release&style=flat-square&color=purple&link=https%3A%2F%2Fgit.nix13.pw%2FScuroNeko%2FLaniakea%2Freleases)
+![Gitea Release](https://img.shields.io/gitea/v/release/ScuroNeko/Laniakea?gitea_url=https%3A%2F%2Fgit.scuroneko.dev&sort=semver&display_name=release&style=flat-square&color=purple&link=https%3A%2F%2Fgit.scuroneko.dev%2FScuroNeko%2FLaniakea%2Freleases)
 
 A lightweight, easy-to-use, and performant Telegram Bot API wrapper for Go. It simplifies bot development with a clean plugin system, middleware support, automatic command generation, and built-in rate limiting.
 
 [На русском](README_RU.md)
 
+[Wiki](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki)
+
 ---
 
 ## ✨ Features
@@ -19,15 +21,16 @@ A lightweight, easy-to-use, and performant Telegram Bot API wrapper for Go. It s
 *   **Middleware Support:** Run code before or after commands (e.g., logging, access control).
 *   **Automatic Command Generation:** Generate help and command lists automatically.
 *   **Built-in Rate Limiting:** Protect your bot from hitting Telegram API limits (supports `retry_after` handling).
-*   **Context-Aware:** Pass custom database or state contexts to your handlers.
-*   **Fluent Interface:** Chain methods for clean configuration (e.g., `bot.ErrorTemplate(...).AddPlugins(...)`).
+*   **Context-Aware:** Pass custom application data or state contexts to your handlers.
+*   **Configurable API:** Mix `Set...` and `Add...` helpers to configure bots clearly (for example, `bot.SetErrorTemplate(...).AddPlugins(...)`).
+*   **Polling and Webhook Runtime:** Run bots through long polling with `Run()` / `RunWithContext(...)` or through a bot-owned webhook server with `RunWebHookWithContext(...)`.
 
 ---
 
 ## 📦 Installation
 
 ```bash
-go get git.nix13.pw/scuroneko/laniakea
+go get git.scuroneko.dev/scuroneko/laniakea
 ```
 
 or
@@ -45,17 +48,18 @@ package main
 import (
 	"log"
 
-	"git.nix13.pw/scuroneko/laniakea" // Import the Laniakea library
+	"git.scuroneko.dev/scuroneko/laniakea" // Import the Laniakea library
 )
 
 // echo is a command handler function.
 // It receives two parameters:
 //   - ctx: the message context (contains info about the message, sender, chat, etc.)
-//   - db: your custom database context (here we use NoDB, a placeholder for no database)
-func echo(ctx *laniakea.MsgContext, db *laniakea.NoDB) {
+//   - data: your shared application data (here we use NoData, a placeholder for no shared data)
+func echo(ctx *laniakea.MsgContext, data laniakea.NoData) error {
 	// Answer the user with the text they sent, without any command prefix.
 	// ctx.Text contains the user's message with the command part stripped off.
 	ctx.Answer(ctx.Text) // User input WITHOUT command
+	return nil
 }
 
 func main() {
@@ -63,14 +67,17 @@ func main() {
 	opts := &laniakea.BotOpts{Token: "TOKEN"}
 
 	// 2. Initialize a new bot instance.
-	//    We use laniakea.NoDB as the database context type (no database needed for this example).
-	bot := laniakea.NewBot[laniakea.NoDB](opts)
+	//    We use laniakea.NoData as the application data type (no shared data needed for this example).
+	bot, err := laniakea.NewBot[laniakea.NoData](opts)
+	if err != nil {
+		log.Fatal(err)
+	}
 	// Ensure bot resources are cleaned up on exit.
 	defer bot.Close()
 
 	// 3. Create a new plugin named "ping".
 	//    Plugins help group related commands and middlewares.
-	p := laniakea.NewPlugin[laniakea.NoDB]("ping")
+	p := laniakea.NewPlugin[laniakea.NoData]("ping")
 
 	// 4. Add a command to the plugin.
 	//    p.NewCommand(echo, "echo") creates a command that triggers the 'echo' function on the "/echo" command.
@@ -78,14 +85,15 @@ func main() {
 
 	// 5. Add another command using an anonymous function (closure).
 	//    This command simply replies "Pong" when the user sends "/ping".
-	p.AddCommand(p.NewCommand(func(ctx *laniakea.MsgContext, db *laniakea.NoDB) {
+	p.AddCommand(p.NewCommand(func(ctx *laniakea.MsgContext, data laniakea.NoData) error {
 		ctx.Answer("Pong")
+		return nil
 	}, "ping"))
 
 	// 6. Configure the bot with a custom error template and add the plugin.
-	//    ErrorTemplate sets a format string for errors (where %s will be replaced by the actual error).
+	//    SetErrorTemplate sets a format string for errors (where %s will be replaced by the actual error).
 	//    AddPlugins(p) registers our "ping" plugin with the bot.
-	bot = bot.ErrorTemplate("Error\n\n%s").AddPlugins(p)
+	bot = bot.SetErrorTemplate("Error\n\n%s").AddPlugins(p)
 
 	// 7. Automatically generate commands like /start, /help, and a list of all registered commands.
 	//    This is optional but very useful for most bots.
@@ -94,26 +102,48 @@ func main() {
 	}
 
 	// 8. Start the bot, listening for updates (long polling).
-	bot.Run()
+	if err := bot.Run(); err != nil {
+		log.Fatal(err)
+	}
 }
 ```
 
 ### How It Works
 1. `BotOpts`: Holds configuration like the API token.
-2. `NewBot[T]`: Creates a bot instance. The type parameter T allows you to pass a custom database context (e.g., *sql.DB) that will be available in all handlers. Use laniakea.NoDB if you don't need it.
+2. `NewBot[T]`: Creates a bot instance. The type parameter T allows you to pass custom shared application data (for example, *sql.DB or a service container) that will be available in all handlers. Use laniakea.NoData if you don't need it.
 3. `NewPlugin`: Creates a logical group for commands and middlewares.
-4. `AddCommand`: Registers a command. The first argument is the handler function (func(*MsgContext, T)), the second is the command name (without the slash).
-5. **Handler Functions**: Receive *MsgContext (message details, methods like Answer) and your custom database context T.
-6. `ErrorTemplate`: Sets a template for error messages. The %s placeholder is replaced by the actual error.
-7. `AutoGenerateCommands`: Adds built-in commands (/start, /help) and a command that lists all available commands.
-8. `Run()`: Starts the bot's update polling loop.
+4. `AddCommand`: Registers a command. The first argument is the handler function (`func(*MsgContext, T) error`), the second is the command name (without the slash).
+5. **Handler Functions**: Receive *MsgContext (message details, methods like Answer) and your custom application data T, and return an error for centralized error handling.
+6. `SetErrorTemplate`: Sets a template for error messages. The %s placeholder is replaced by the actual error.
+7. `AutoGenerateCommands`: Registers plugin-defined commands with Telegram across the supported scopes.
+8. `Run()`: Starts the bot's update polling loop and returns an error if startup or polling fails.
+9. `RunWebHookWithContext(...)`: Starts the bot-owned webhook runtime when Telegram should deliver updates over HTTP instead of long polling.
+10. A `Bot` instance is single-use. After `Run()`, `RunWithContext()`, or `RunWebHookWithContext()` returns, create a new bot instance for the next session.
+
+## Webhook Runtime
+
+Laniakea also supports a bot-owned webhook runtime through `RunWebHookWithContext(...)` and `RunWebHook(...)`.
+
+Use it when:
+- Telegram should push updates to your HTTP endpoint instead of your bot polling for them.
+- You want webhook-delivered updates to reuse the same internal queue, worker pool, runners, and single-use lifecycle as polling.
+- You want Laniakea to register the webhook and own the local HTTP server.
+
+Production notes:
+- Set `BotWebHookOpts.SecretToken` for request authentication.
+- `BotWebHookOpts.SecretToken` is required when `BotWebHookOpts.UseStatusPath` is enabled.
+- Keep `BotWebHookOpts.Path` specific instead of serving webhook traffic on `/`.
+- If you switch an existing deployment from webhook mode to long polling, delete the webhook first with `CloseWebHook()` or `tgapi.DeleteWebhook(...)`. Telegram keeps webhook delivery active until it is removed.
+- Use `RunWebHookWithContext(...)` with a cancelable context, then call `Close()` after runtime shutdown.
+
+See the full guide in the wiki: [Webhook Runtime](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki/Webhook-Runtime)
 
 ## 📖 Core Concepts
 ### Plugins
 
 Plugins are the main way to organize code. A plugin can have multiple commands and middlewares.
 ```go
-plugin := laniakea.NewPlugin[MyDB]("admin")
+plugin := laniakea.NewPlugin[*MyDB]("admin")
 plugin.AddCommand(plugin.NewCommand(banUser, "ban"))
 bot.AddPlugins(plugin)
 ```
@@ -122,9 +152,10 @@ bot.AddPlugins(plugin)
 
 A command is a function that handles a specific bot command (e.g., /start).
 ```go
-func myHandler(ctx *laniakea.MsgContext, db *MyDB) {
+func myHandler(ctx *laniakea.MsgContext, db *MyDB) error {
     // Access command arguments via ctx.Args ([]string)
     // Reply to the user: ctx.Answer("some text")
+    return nil
 }
 ```
 
@@ -133,8 +164,10 @@ func myHandler(ctx *laniakea.MsgContext, db *MyDB) {
 Provides access to the incoming message and useful reply methods:
 
 - `Answer(text string) *AnswerMessage`: Sends a message with parse_mode none.
+- `AnswerLong(text string) []*AnswerMessage`: Splits long plain text into multiple messages.
 - `AnswerMarkdown(text string) *AnswerMessage`: Sends a message formatted with MarkdownV2 (you handle escaping).
 - `Keyboard(text string, keyboard *InlineKeyboard) *AnswerMessage`: Sends a message with parse_mode none and inline keyboard.
+- `KeyboardLong(text string, keyboard *InlineKeyboard) []*AnswerMessage`: Splits long plain text into multiple messages and attaches the keyboard to the final chunk.
 - `KeyboardMarkdown(text string, keyboard *InlineKeyboard) *AnswerMessage`: Sends a message formatted with MarkdownV2 (you handle escaping) and inline keyboard.
 - `AnswerPhoto(photoId, text string) *AnswerMessage`: Sends a message with photo with parse_mode none.
 - `AnswerPhotoMarkdown(photoId, text string) *AnswerMessage`: Sends a photo with MarkdownV2 caption (you handle escaping).
@@ -153,16 +186,59 @@ Provides access to the incoming message and useful reply methods:
 
 This split keeps method intent explicit: JSON-only calls go through `API`, file uploads go through `Uploader`.
 
-### Database Context
+For advanced cases, `tgapi.NewRequest(...)` and `tgapi.NewUploaderRequest(...)` remain public as low-level escape hatches. They are intentionally less safe than method-specific helpers: callers must supply the correct Telegram method name and compatible request/response types themselves.
 
-The `T` in `NewBot[T]` is a powerful feature. You can pass any type (like a database connection pool), and it will be available in every command and middleware handler.
+### App Data
+
+The `T` in `NewBot[T]` is a powerful feature. You can pass any type, but shared dependencies such as database pools, service containers, or API clients should usually use a pointer type.
 
 ```go
 type MyDB struct { /* ... */ }
 db := &MyDB{...}
-bot := laniakea.NewBot[*MyDB](opts, db) // Pass db instance
+bot, err := laniakea.NewBot[*MyDB](opts)
+if err != nil {
+    log.Fatal(err)
+}
+bot.SetAppData(db)
 ```
 
+### Scenes and Sessions
+
+Scenes model multi-step conversations inside a plugin. Each active scene is stored in a session keyed by scope, so you can isolate flows per user, per chat, or per user-chat pair.
+
+```go
+plugin := laniakea.NewPlugin[MyDB]("signup")
+
+plugin.NewScene("signup").
+    SetScope(laniakea.SceneScopeUserChat).
+    SetEntry("ask_name").
+    OnStep("ask_name", func(ctx *laniakea.SceneContext, db MyDB) (laniakea.SceneResult, error) {
+        if ctx.Text == "" {
+            ctx.Answer("What is your name?")
+            return ctx.Stay(), nil
+        }
+
+        if err := ctx.SaveData(struct {
+            Name string `json:"name"`
+        }{Name: ctx.Text}); err != nil {
+            return laniakea.SceneResult{}, err
+        }
+
+        ctx.Answer("Nice to meet you.")
+        return ctx.Next("done"), nil
+    }).
+    OnStep("done", func(ctx *laniakea.SceneContext, db MyDB) (laniakea.SceneResult, error) {
+        return ctx.Exit(), nil
+    })
+```
+
+- Use `ctx.EnterScene("signup")` to enter the configured entry step.
+- Use `ctx.EnterSceneStep("signup", "done")` when you need an explicit starting step.
+- Return `ctx.Stay()`, `ctx.Next(step)`, `ctx.Exit()`, or `ctx.Pass()` from scene handlers to control flow.
+- `SceneActionPass` keeps the current session unchanged and continues normal bot routing.
+- Use `SceneContext.SaveData(...)` and `SceneContext.BindData(...)` for JSON session state.
+- Use `SceneScopeUser`, `SceneScopeChat`, or `SceneScopeUserChat` depending on how widely a conversation should be shared.
+
 ## 🧩 Middleware
 Middleware are functions that run before a command handler. They are perfect for cross-cutting concerns like logging, access control, rate limiting, or modifying the context.
 
@@ -177,11 +253,12 @@ func(ctx *MsgContext, db T) bool
 - If it returns false, the execution chain stops immediately (the command will not run).
 
 ### Adding Middleware
-Use the Use method of a plugin to add one or more middleware functions. They are executed in the order they are added.
+Use `AddMiddleware` on a plugin to add one or more shared middleware functions. They are executed in the order they are added.
 
 ```go
-plugin := laniakea.NewPlugin[MyDB]("admin")
-plugin.Use(loggingMiddleware, adminOnlyMiddleware)
+plugin := laniakea.NewPlugin[*MyDB]("admin")
+plugin.AddMiddleware(laniakea.NewMiddleware("logging", loggingMiddleware))
+plugin.AddMiddleware(laniakea.NewMiddleware("admin-only", adminOnlyMiddleware))
 plugin.AddCommand(plugin.NewCommand(banUser, "ban"))
 ```
 
@@ -210,16 +287,26 @@ func adminOnlyMiddleware(ctx *laniakea.MsgContext, db *MyDB) bool {
 - Middleware can modify the MsgContext (e.g., add custom fields) before the command runs.
 
 ## ⚙️ Advanced Configuration
-- **Inline Keyboards**: Build keyboards using `laniakea.NewInlineKeyboardJson`, `laniakea.NewInlineKeyboardBase64`, or `laniakea.NewInlineKeyboard`.
+- **Inline Keyboards**: Build keyboards using `laniakea.NewInlineKeyboardJson`, `laniakea.NewInlineKeyboardBase64`, or `laniakea.NewInlineKeyboard`. `Bot.SetPayloadType(...)` defines the default payload format, and `InlineKeyboard.SetPayloadType(...)` overrides it for one keyboard.
 - **Rate Limiting**: Pass a configured utils.RateLimiter via BotOpts to handle Telegram's rate limits gracefully.
-- **Custom HTTP Client**: Provide your own http.Client in BotOpts for fine-tuned control.
+- **Localization**: `L10n` is safe for concurrent use once attached to the bot.
+- **Custom Update Handlers**: Use `plugin.AddUpdateHandler(...)` for Telegram update types that are not part of the command/payload flow.
+- **Lifecycle**: `RunWithContext(...)` and `RunWebHookWithContext(...)` do not call `Close()` for you. Shut the bot down explicitly, and create a fresh `Bot` for the next run.
+
+## Telegram Update Handling
+- Commands and payloads are handled through plugins.
+- Non-command updates can be routed with `plugin.AddUpdateHandler(updateType, handler)`.
+- `message`, `channel_post`, and `callback_query` stay on the command/payload flow.
+- `tgapi.Update` exposes a derived `Type` field after JSON unmarshalling so handlers can inspect the effective update kind directly.
 
 ## 📝 License
 
 This project is licensed under the GNU General Public License v3.0 — see the [LICENSE](LICENSE) file for details.
 
 ## 📚 Learn More
-[GoDoc](https://pkg.go.dev/git.nix13.pw/scuroneko/laniakea)
+[GoDoc](https://pkg.go.dev/git.scuroneko.dev/scuroneko/laniakea)
+
+[Wiki](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki)
 
 [Telegram Bot API](https://core.telegram.org/bots/api)
 

README_RU.md

@@ -4,12 +4,14 @@
 
 [![Go Version](https://img.shields.io/badge/Go-1.24+-00ADD8?logo=go&style=flat-square)](https://go.dev/)
 [![License: GPL-3.0](https://img.shields.io/badge/License-GPL%203.0-blue.svg?style=flat-square)](LICENSE)
-![Gitea Release](https://img.shields.io/gitea/v/release/ScuroNeko/Laniakea?gitea_url=https%3A%2F%2Fgit.nix13.pw&sort=semver&display_name=release&style=flat-square&color=purple&link=https%3A%2F%2Fgit.nix13.pw%2FScuroNeko%2FLaniakea%2Freleases)
+![Gitea Release](https://img.shields.io/gitea/v/release/ScuroNeko/Laniakea?gitea_url=https%3A%2F%2Fgit.scuroneko.dev&sort=semver&display_name=release&style=flat-square&color=purple&link=https%3A%2F%2Fgit.scuroneko.dev%2FScuroNeko%2FLaniakea%2Freleases)
 
 Легковесная, простая в использовании и производительная обёртка для Telegram Bot API на Go. Она упрощает разработку ботов благодаря чистой системе плагинов, поддержке Middleware, автоматической генерации команд и встроенному рейтлимитеру.
 
 [English](README.md)
 
+[Wiki](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki)
+
 ---
 
 ## ✨ Возможности
@@ -20,15 +22,16 @@
 *   **Поддержка промежуточных слоёв (Middleware):** Выполняйте код до или после команд (например, логирование, проверка доступа).
 *   **Автоматическая генерация команд:** Генерируйте справку и списки команд автоматически.
 *   **Встроенный ограничитель запросов (Rate Limiter):** Защитите бота от превышения лимитов Telegram API (с обработкой `retry_after`).
-*   **Контекст данных:** Передавайте свой контекст базы данных или состояния в обработчики.
-*   **Текучий интерфейс (Fluent Interface):** Стройте цепочки методов для чистой конфигурации (например, `bot.ErrorTemplate(...).AddPlugins(...)`).
+*   **Контекст данных:** Передавайте общие данные приложения или state в обработчики.
+*   **Настраиваемый API:** Комбинируйте `Set...` и `Add...` helper-методы для понятной конфигурации, например `bot.SetErrorTemplate(...).AddPlugins(...)`.
+*   **Polling и Webhook Runtime:** Запускайте бота через long polling с `Run()` / `RunWithContext(...)` или через webhook server, которым владеет сам бот, с `RunWebHookWithContext(...)`.
 
 ---
 
 ## 📦 Установка
 
 ```bash
-go get git.nix13.pw/scuroneko/laniakea
+go get git.scuroneko.dev/scuroneko/laniakea
 ```
 
 или
@@ -46,17 +49,18 @@ package main
 import (
 	"log"
 
-	"git.nix13.pw/scuroneko/laniakea" // Импортируем библиотеку Laniakea
+	"git.scuroneko.dev/scuroneko/laniakea" // Импортируем библиотеку Laniakea
 )
 
 // echo — это функция-обработчик команды.
 // Она получает два параметра:
 //   - ctx: контекст сообщения (содержит информацию о сообщении, отправителе, чате и т.д.)
-//   - db: ваш пользовательский контекст базы данных (здесь мы используем NoDB — заглушку)
-func echo(ctx *laniakea.MsgContext, db *laniakea.NoDB) {
+//   - data: ваши общие данные приложения (здесь мы используем NoData — заглушку без общих зависимостей)
+func echo(ctx *laniakea.MsgContext, data laniakea.NoData) error {
 	// Отвечаем пользователю текстом, который он прислал, без префикса команды.
 	// ctx.Text содержит сообщение пользователя, из которого удалена часть с командой.
 	ctx.Answer(ctx.Text) // Ввод пользователя БЕЗ команды
+	return nil
 }
 
 func main() {
@@ -64,14 +68,17 @@ func main() {
 	opts := &laniakea.BotOpts{Token: "TOKEN"}
 
 	// 2. Инициализируем новый экземпляр бота.
-	//    Используем laniakea.NoDB как тип контекста базы данных (база не нужна для примера).
-	bot := laniakea.NewBot[laniakea.NoDB](opts)
+	//    Используем laniakea.NoData как тип данных приложения (общие зависимости не нужны для примера).
+	bot, err := laniakea.NewBot[laniakea.NoData](opts)
+	if err != nil {
+		log.Fatal(err)
+	}
 	// Гарантируем освобождение ресурсов бота при выходе.
 	defer bot.Close()
 
 	// 3. Создаём новый плагин с именем "ping".
 	//    Плагины помогают группировать связанные команды и промежуточные обработчики.
-	p := laniakea.NewPlugin[laniakea.NoDB]("ping")
+	p := laniakea.NewPlugin[laniakea.NoData]("ping")
 
 	// 4. Добавляем команду в плагин.
 	//    p.NewCommand(echo, "echo") создаёт команду, которая вызывает функцию 'echo' по команде "/echo".
@@ -79,14 +86,15 @@ func main() {
 
 	// 5. Добавляем ещё одну команду, используя анонимную функцию (замыкание).
 	//    Эта команда просто отвечает "Pong", когда пользователь отправляет "/ping".
-	p.AddCommand(p.NewCommand(func(ctx *laniakea.MsgContext, db *laniakea.NoDB) {
+	p.AddCommand(p.NewCommand(func(ctx *laniakea.MsgContext, data laniakea.NoData) error {
 		ctx.Answer("Pong")
+		return nil
 	}, "ping"))
 
 	// 6. Настраиваем бота: задаём шаблон ошибки и добавляем плагин.
-	//    ErrorTemplate устанавливает формат для сообщений об ошибках (где %s будет заменён на текст ошибки).
+	//    SetErrorTemplate устанавливает формат для сообщений об ошибках (где %s будет заменён на текст ошибки).
 	//    AddPlugins(p) регистрирует наш плагин "ping" в боте.
-	bot = bot.ErrorTemplate("Ошибка\n\n%s").AddPlugins(p)
+	bot = bot.SetErrorTemplate("Ошибка\n\n%s").AddPlugins(p)
 
 	// 7. Автоматически генерируем команды, такие как /start, /help и список всех зарегистрированных команд.
 	//    Это необязательно, но очень полезно для большинства ботов.
@@ -95,26 +103,48 @@ func main() {
 	}
 
 	// 8. Запускаем бота, начиная прослушивание обновлений (long polling).
-	bot.Run()
+	if err := bot.Run(); err != nil {
+		log.Fatal(err)
+	}
 }
 ```
 
 ### Как это работает
 1. `BotOpts`: Содержит конфигурацию, например, токен API.
-2. `NewBot[T]`: Создаёт экземпляр бота. Параметр типа T позволяет передать пользовательский контекст базы данных (например, *sql.DB), который будет доступен во всех обработчиках. Используйте laniakea.NoDB, если он не нужен.
+2. `NewBot[T]`: Создаёт экземпляр бота. Параметр типа T позволяет передать общие данные приложения (например, *sql.DB или контейнер сервисов), которые будут доступны во всех обработчиках. Используйте laniakea.NoData, если они не нужны.
 3. `NewPlugin`: Создаёт логическую группу для команд и Middleware.
-4. `AddCommand`: Регистрирует команду. Первый аргумент — функция-обработчик (func(*MsgContext, T)), второй — имя команды (без слеша).
-5. **Функции-обработчики**: Получают *MsgContext (детали сообщения, методы типа Answer) и ваш контекст базы данных T.
-6. `ErrorTemplate`: Устанавливает шаблон для сообщений об ошибках. Плейсхолдер %s заменяется на текст ошибки.
-7. `AutoGenerateCommands`: Добавляет встроенные команды (/start, /help) и команду, показывающую список всех доступных команд.
-8. `Run()`: Запускает цикл опроса обновлений бота.
+4. `AddCommand`: Регистрирует команду. Первый аргумент — функция-обработчик (`func(*MsgContext, T) error`), второй — имя команды (без слеша).
+5. **Функции-обработчики**: Получают *MsgContext (детали сообщения, методы типа Answer) и ваши данные приложения типа T, а ошибку возвращают для централизованной обработки.
+6. `SetErrorTemplate`: Устанавливает шаблон для сообщений об ошибках. Плейсхолдер %s заменяется на текст ошибки.
+7. `AutoGenerateCommands`: Регистрирует команды из плагинов в Telegram для поддерживаемых scope.
+8. `Run()`: Запускает цикл опроса обновлений бота и возвращает ошибку, если старт или polling завершился неуспешно.
+9. `RunWebHookWithContext(...)`: Запускает bot-owned webhook runtime, когда Telegram должен доставлять update по HTTP вместо long polling.
+10. Экземпляр `Bot` одноразовый. После завершения `Run()`, `RunWithContext()` или `RunWebHookWithContext()` для следующего запуска создавайте новый бот.
+
+## Webhook Runtime
+
+Laniakea также поддерживает bot-owned webhook runtime через `RunWebHookWithContext(...)` и `RunWebHook(...)`.
+
+Используй его, когда:
+- Telegram должен сам отправлять update на твой HTTP endpoint вместо polling.
+- Ты хочешь, чтобы webhook-update проходили через ту же внутреннюю очередь, тот же worker pool, тех же runners и тот же single-use lifecycle, что и polling.
+- Ты хочешь, чтобы Laniakea сама регистрировала webhook и владела локальным HTTP server.
+
+Практические замечания:
+- Задавай `BotWebHookOpts.SecretToken` для аутентификации запросов.
+- Непустой `BotWebHookOpts.SecretToken` обязателен, если включён `BotWebHookOpts.UseStatusPath`.
+- Используй явный `BotWebHookOpts.Path`, а не `/`.
+- Если ты переводишь уже существующий deployment с webhook-режима на long polling, сначала удали webhook через `CloseWebHook()` или `tgapi.DeleteWebhook(...)`. Пока webhook не удалён, Telegram продолжает доставку через него.
+- Запускай `RunWebHookWithContext(...)` с cancelable context и после остановки runtime всё равно вызывай `Close()`.
+
+Полное руководство есть в wiki: [Webhook Runtime](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki/Webhook-Runtime-RU)
 
 ## 📖 Основные концепции
 ### Плагины (Plugins)
 Плагины — основной способ организации кода. Плагин может содержать несколько команд и Middleware.
 
 ```go
-plugin := laniakea.NewPlugin[MyDB]("admin")
+plugin := laniakea.NewPlugin[*MyDB]("admin")
 plugin.AddCommand(plugin.NewCommand(banUser, "ban"))
 bot.AddPlugins(plugin)
 ```
@@ -123,9 +153,10 @@ bot.AddPlugins(plugin)
 Команда — это функция, которая обрабатывает конкретную команду бота (например, /start).
 
 ```go
-func myHandler(ctx *laniakea.MsgContext, db *MyDB) {
+func myHandler(ctx *laniakea.MsgContext, db *MyDB) error {
     // Доступ к аргументам команды через ctx.Args ([]string)
     // Ответ пользователю: ctx.Answer("какой-то текст")
+    return nil
 }
 ```
 
@@ -133,26 +164,78 @@ func myHandler(ctx *laniakea.MsgContext, db *MyDB) {
 Предоставляет доступ к входящему сообщению и полезные методы для ответа:
 
 - `Answer(text string)`: Отправляет сообщение с parse_mode none.
+- `AnswerLong(text string) []*AnswerMessage`: Разбивает длинный plain text на несколько сообщений.
 - `AnswerMarkdown(text string)`: Отправляет сообщение, отформатированное MarkdownV2 (экранирование на вашей стороне).
 - `Keyboard(text string, keyboard *InlineKeyboard) *AnswerMessage`: Отправляет сообщение с parse_mode none и Inline клавиатурой.
+- `KeyboardLong(text string, keyboard *InlineKeyboard) []*AnswerMessage`: Разбивает длинный plain text на несколько сообщений и вешает клавиатуру на последний chunk.
 - `KeyboardMarkdown(text string, keyboard *InlineKeyboard) *AnswerMessage`: Отправляет сообщение, отформатированное MarkdownV2 (экранирование на вашей стороне), и Inline клавиатурой.
 - `AnswerPhoto(photoId, text string) *AnswerMessage`: Отправляет фотографию с подписью и parse_mode none.
 - `AnswerPhotoMarkdown(photoId, text string) *AnswerMessage`: Отправляет фотографию с подписью, отформатированной MarkdownV2 (экранирование на вашей стороне).
-- `EditCallback(text string)`: Редактирует сообщение, форматируя его в MarkdownV2 (экранирование на вашей стороне), после нажатия Inline кнопки.
-- `EditCallbackMarkdown(text string)`: Редактирует сообщение с parse_mode none после нажатия Inline кнопки.
-- `SendChatAction(action string)`: Отправляет действие "печатает", "загружает фото" и т.д.
-- Поля: `Text`, `Args`, `From`, `Chat`, `Msg` и другие.
+- `EditCallback(text string)`: Редактирует сообщение с `parse_mode` none после нажатия inline-кнопки.
+- `EditCallbackMarkdown(text string)`: Редактирует сообщение в формате MarkdownV2 (экранирование на вашей стороне) после нажатия inline-кнопки.
+- `SendAction(action tgapi.ChatActionType)`: Отправляет действие "печатает", "загружает фото" и т.д.
+- Поля: `Text`, `Args`, `From`, `FromID`, `Msg`, `InlineMsgId`, `CallbackQueryId` и другие.
 - И много других методов и полей!
 
-### Контекст базы данных (Database Context)
-Параметр типа `T` в `NewBot[T]` — мощная функция. Вы можете передать любой тип (например, пул соединений с БД), и он будет доступен в каждом обработчике команды и中间件.
+### App Data
+Параметр типа `T` в `NewBot[T]` — мощная возможность. Вы можете передать любой тип, но для разделяемых зависимостей вроде пула соединений с БД, контейнера сервисов или API-клиента обычно стоит использовать pointer type.
 
 ```go
 type MyDB struct { /* ... */ }
 db := &MyDB{...}
-bot := laniakea.NewBot[*MyDB](opts, db) // Передаём экземпляр db
+bot, err := laniakea.NewBot[*MyDB](opts)
+if err != nil {
+    log.Fatal(err)
+}
+bot.SetAppData(db)
 ```
 
+### Сцены и сессии (Scenes and Sessions)
+
+Сцены описывают многошаговые диалоги внутри плагина. Активная сцена хранится в session state, ключ которого зависит от scope, поэтому поток можно изолировать на пользователя, на чат или на пару пользователь-чат.
+
+```go
+plugin := laniakea.NewPlugin[MyDB]("signup")
+
+plugin.NewScene("signup").
+    SetScope(laniakea.SceneScopeUserChat).
+    SetEntry("ask_name").
+    OnStep("ask_name", func(ctx *laniakea.SceneContext, db MyDB) (laniakea.SceneResult, error) {
+        if ctx.Text == "" {
+            ctx.Answer("Как тебя зовут?")
+            return ctx.Stay(), nil
+        }
+
+        if err := ctx.SaveData(struct {
+            Name string `json:"name"`
+        }{Name: ctx.Text}); err != nil {
+            return laniakea.SceneResult{}, err
+        }
+
+        ctx.Answer("Приятно познакомиться.")
+        return ctx.Next("done"), nil
+    }).
+    OnStep("done", func(ctx *laniakea.SceneContext, db MyDB) (laniakea.SceneResult, error) {
+        return ctx.Exit(), nil
+    })
+```
+
+- Используйте `ctx.EnterScene("signup")`, чтобы войти в entry step, настроенный у сцены.
+- Используйте `ctx.EnterSceneStep("signup", "done")`, если нужен явный стартовый step.
+- Из scene handler возвращайте `ctx.Stay()`, `ctx.Next(step)`, `ctx.Exit()` или `ctx.Pass()` для управления потоком.
+- `SceneActionPass` не меняет текущую session state и продолжает обычный routing бота.
+- Для JSON-состояния сцены используйте `SceneContext.SaveData(...)` и `SceneContext.BindData(...)`.
+- Выбирайте `SceneScopeUser`, `SceneScopeChat` или `SceneScopeUserChat` в зависимости от того, насколько широко должен разделяться диалог.
+
+### tgapi: API и Uploader
+
+В `tgapi` есть два клиента:
+
+- `API` для JSON-запросов (`SendMessage`, `EditMessageText`, методы с `file_id`/URL).
+- `Uploader` для multipart-загрузок (`SendPhoto`, `SendDocument`, `SendVideo` с бинарными файлами).
+
+Для продвинутых сценариев `tgapi.NewRequest(...)` и `tgapi.NewUploaderRequest(...)` остаются публичными low-level escape hatch API. Они менее безопасны, чем типизированные helper-методы: вызывающая сторона сама отвечает за корректное имя Telegram-метода и совместимые типы параметров/ответа.
+
 ## 🧩 Промежуточные слои (Middleware)
 Middleware — это функции, которые выполняются перед обработчиком команды. Они идеально подходят для сквозных задач, таких как логирование, контроль доступа, ограничение скорости запросов или модификация контекста.
 
@@ -167,11 +250,12 @@ func(ctx *MsgContext, db T) bool
 - Если возвращается false, цепочка выполнения немедленно прерывается (команда не запускается).
 
 ### Добавление middleware
-Используйте метод Use плагина для добавления одной или нескольких функций middleware. Они выполняются в порядке добавления.
+Используйте метод `AddMiddleware` плагина для добавления одной или нескольких функций middleware. Они выполняются в порядке добавления.
 
 ```go
-plugin := laniakea.NewPlugin[MyDB]("admin")
-plugin.Use(loggingMiddleware, adminOnlyMiddleware)
+plugin := laniakea.NewPlugin[*MyDB]("admin")
+plugin.AddMiddleware(laniakea.NewMiddleware("logging", loggingMiddleware))
+plugin.AddMiddleware(laniakea.NewMiddleware("admin-only", adminOnlyMiddleware))
 plugin.AddCommand(plugin.NewCommand(banUser, "ban"))
 ```
 
@@ -200,15 +284,25 @@ func adminOnlyMiddleware(ctx *laniakea.MsgContext, db *MyDB) bool {
 - Middleware может изменять MsgContext (например, добавлять пользовательские поля) перед запуском команды.
 
 ## ⚙️ Расширенная настройка
-**Инлайн-клавиатуры**: Создавайте клавиатуры с помощью laniakea.NewKeyboard().
-**Ограничение запросов**: Передайте настроенный utils.RateLimiter через BotOpts для корректной обработки лимитов Telegram.
-**Пользовательский HTTP-клиент**: Предоставьте свой http.Client в BotOpts для точного контроля.
+- **Инлайн-клавиатуры**: Создавайте клавиатуры с помощью `laniakea.NewInlineKeyboardJson`, `laniakea.NewInlineKeyboardBase64` или `laniakea.NewInlineKeyboard`. `Bot.SetPayloadType(...)` задаёт payload format по умолчанию, а `InlineKeyboard.SetPayloadType(...)` переопределяет его для конкретной клавиатуры.
+- **Ограничение запросов**: Передайте настроенный `utils.RateLimiter` через `BotOpts` для корректной обработки лимитов Telegram.
+- **Локализация**: `L10n` безопасен для конкурентного использования после подключения к боту.
+- **Пользовательские update handlers**: Используйте `plugin.AddUpdateHandler(...)` для Telegram update types вне command/payload flow.
+- **Жизненный цикл**: `RunWithContext(...)` и `RunWebHookWithContext(...)` не вызывают `Close()` автоматически. Завершайте бот явно и создавайте новый `Bot` для следующего запуска.
+
+## Обработка Telegram Updates
+- Команды и payload-ы обрабатываются через плагины.
+- Для некомандных update-ов можно зарегистрировать обработчик через `plugin.AddUpdateHandler(updateType, handler)`.
+- `message`, `channel_post` и `callback_query` остаются в command/payload flow.
+- После JSON-декодирования `tgapi.Update` заполняет поле `Type`, чтобы обработчики могли явно видеть итоговый вид update.
 
 ## 📝 Лицензия
 Этот проект лицензирован под GNU General Public License v3.0 - подробности см. в файле [LICENSE](LICENSE).
 
 ## 📚 Дополнительная информация
-[GoDoc Laniakea](https://pkg.go.dev/git.nix13.pw/scuroneko/laniakea)
+[GoDoc Laniakea](https://pkg.go.dev/git.scuroneko.dev/scuroneko/laniakea)
+
+[Wiki](https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki)
 
 [Telegram Bot API](https://core.telegram.org/bots/api)
 

SEMVER.md

@@ -0,0 +1,45 @@
+# Semantic Versioning Policy
+
+This project follows Semantic Versioning with the rules below.
+
+## Public API Surface
+
+The public API consists of:
+- exported identifiers in package `laniakea`
+- exported identifiers in package `tgapi`
+- documented behavior in `README.md`, `README_RU.md`, and package godoc
+
+Anything unexported is internal and may change without notice.
+
+## Breaking Changes
+
+A release requires a major version bump when it changes any of the following:
+- exported function, method, type, field, constant, or variable names
+- function or method signatures
+- JSON field names or request/response wire compatibility in `tgapi`
+- documented behavioral guarantees relied on by callers
+
+Examples:
+- removing an exported alias
+- changing callback payload encoding defaults
+- changing handler dispatch semantics in a way that breaks existing bots
+
+## Minor Changes
+
+A release uses a minor version bump for backward-compatible additions:
+- new exported types, methods, helpers, or update handlers
+- support for new Telegram Bot API fields or methods
+- optional configuration knobs that do not change existing defaults
+
+## Patch Changes
+
+A release uses a patch version bump for backward-compatible fixes:
+- bug fixes
+- test-only changes
+- godoc and README clarifications
+- internal refactors with no public behavior change
+
+## Pre-Releases
+
+`-rc.N` builds may still adjust API details before `v1.0.0`.
+Once `v1.0.0` is released, breaking changes require a new major version.

TODO.md

@@ -0,0 +1,28 @@
+# TODO
+
+The framework backlog has moved to the wiki.
+
+Primary page:
+
+- https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki/Framework-Backlog
+
+Russian page:
+
+- https://git.scuroneko.dev/ScuroNeko/Laniakea/wiki/Framework-Backlog-RU
+
+Current priority split:
+
+- `Partial`: none.
+- `Ideas`: service layer and dependency graph model, plugin composition contract.
+
+Completed former high-priority items:
+
+- `[v1.0.0-rc.14] Webhook runtime model.`
+- `[v1.0.0-rc.13] Observability model`: added first-class `Observer` events for update, command, payload, scene, policy, runner, polling, and centralized error flows, with safe event dispatch and regression coverage for the new runtime hooks.
+- `[v1.0.0-rc.13] Authorization and policy model`: added first-class `Policy[T]`, middleware integration through `RequirePolicy(...)`, plugin and bot policy registration helpers, built-in Telegram-aware policies, and composable `AllPolicies(...)`, `AnyPolicy(...)`, and `NotPolicy(...)` helpers with regression coverage.
+- `[v1.0.0-rc.13] Update schema contract`: documented and tested the normalized `MsgContext` update-routing contract, including routing categories and per-update field guarantees.
+- `[v1.0.0-rc.13] User-facing vs internal error model`: added explicit user-visible vs internal-only error markers and updated centralized handler error routing accordingly.
+- `[v1.0.0-rc.13] Configuration freeze model`: formalized bot configuration freeze after first run, documented lifecycle commit points, and added regression coverage for ignored late mutations.
+- `[v1.0.0-rc.12] Conversation / Scene Model`.
+- `[v1.0.0-rc.12] Typed Handler Input Model`.
+- `[v1.0.0-rc.12] Request Context / Cancellation Model`.

bot.go

@@ -4,35 +4,45 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"sort"
-	"strings"
 	"sync"
+	"time"
 
-	"git.nix13.pw/scuroneko/extypes"
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
-	"git.nix13.pw/scuroneko/laniakea/utils"
-	"git.nix13.pw/scuroneko/slog"
-	"github.com/alitto/pond/v2"
+	"git.scuroneko.dev/scuroneko/extypes"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
-// DbContext is an interface representing the application's database context.
-// It is injected into plugins and middleware via Bot.DatabaseContext().
+// AppData is the generic shared application data type injected into bots,
+// plugins, and handlers.
+//
+// Use it for long-lived shared dependencies such as database handles, service
+// containers, API clients, or immutable configuration snapshots.
 //
 // Example:
 //
 //	type MyDB struct { ... }
-//	bot := NewBot[MyDB](opts).DatabaseContext(&myDB)
+//	myDB := &MyDB{}
+//	bot, err := NewBot[*MyDB](opts)
+//	if err != nil {
+//		return err
+//	}
+//	bot.SetAppData(myDB)
 //
-// Use NoDB if no database is needed.
-type DbContext any
+// Use NoData if no shared application data is needed.
+type AppData any
 
-// NoDB is a placeholder type for bots that do not use a database.
-// Use Bot[NoDB] to indicate no dependency injection is required.
-type NoDB struct{ DbContext }
+// NoData is a placeholder type for bots that do not use shared application
+// data.
+//
+// Use Bot[NoData] to indicate no shared dependency injection is required.
+type NoData struct{ AppData }
 
-// DbLogger is a function type that returns a slog.LoggerWriter for database logging.
-// Used to inject database-specific log output (e.g., SQL queries, ORM events).
-type DbLogger[T DbContext] func(db *T) slog.LoggerWriter
+// AppDataLogger builds a slog.LoggerWriter from injected application data.
+//
+// Use it when shared application data exposes a log sink or adapter that should
+// receive framework logs.
+type AppDataLogger[T AppData] func(data T) slog.LoggerWriter
 
 // BotPayloadType defines the serialization format for callback data payloads.
 type BotPayloadType string
@@ -44,6 +54,20 @@ var (
 	BotPayloadJson BotPayloadType = "json"
 )
 
+var (
+	// ErrNoPrefixes reports that the bot was started without any command prefixes.
+	ErrNoPrefixes = errors.New("no prefixes defined")
+	// ErrNoPlugins reports that the bot was started without any registered plugins.
+	ErrNoPlugins = errors.New("no plugins defined")
+	// ErrBotAlreadyRun reports that Run, RunWithContext, or RunWebHookWithContext was called more than once.
+	ErrBotAlreadyRun = errors.New("bot can only be run once")
+
+	// ErrTokenRequired reports that BotOpts.Token was empty.
+	ErrTokenRequired = errors.New("token required")
+	// ErrOptsIsNil reports that NewBot was called with a nil BotOpts pointer.
+	ErrOptsIsNil = errors.New("opts is nil")
+)
+
 // Bot is the core Telegram bot instance.
 //
 // Manages:
@@ -53,17 +77,22 @@ var (
 //   - Logging and rate limiting
 //   - Localization and draft message support
 //
-// All methods are safe for concurrent use. Direct field access is not recommended.
-type Bot[T DbContext] struct {
-	token         string
-	debug         bool
-	errorTemplate string
-	username      string
-	payloadType   BotPayloadType
-	maxWorkers    int
+// Runtime accessors are safe for concurrent use. Configure the bot before Run,
+// RunWithContext, or RunWebHookWithContext.
+// A Bot is single-use: after Run, RunWithContext, or RunWebHookWithContext returns,
+// create a new Bot for the next session.
+type Bot[T AppData] struct {
+	token             string
+	debug             bool
+	errorTemplate     string
+	username          string
+	payloadType       BotPayloadType
+	strictPayloadType bool
+	maxWorkers        int
 
 	logger        *slog.Logger                // Main bot logger (JSON stdout + optional file)
 	RequestLogger *slog.Logger                // Optional request-level API logging
+	webHookLogger *slog.Logger                // Webhook logger. Available only after Bot.RunWebHookWithContext.
 	extraLoggers  extypes.Slice[*slog.Logger] // API, Uploader, and custom loggers
 
 	plugins     []Plugin[T]     // Command/event handlers
@@ -73,9 +102,16 @@ type Bot[T DbContext] struct {
 
 	api           *tgapi.API      // Telegram API client
 	uploader      *tgapi.Uploader // File uploader
-	dbContext     *T              // Injected database context
 	l10n          *L10n           // Localization manager
 	draftProvider *DraftProvider  // Draft message builder
+	observer      Observer        // Optional event observer for instrumentation
+
+	appData         T // Injected application data
+	hasAppData      bool
+	warnedValueData bool
+
+	sessionStore       SessionStore // Session store for scene management
+	sceneScopePriority []SceneScope
 
 	updateOffsetMu sync.Mutex
 	updateOffset   int                // Last processed update ID
@@ -83,6 +119,21 @@ type Bot[T DbContext] struct {
 	updateQueue    chan *tgapi.Update // Internal queue for processing updates
 	runnerOnceWG   sync.WaitGroup     // Tracks one-time async runners
 	runnerBgWG     sync.WaitGroup     // Tracks background async runners
+	runStateMu     sync.Mutex
+	running        bool
+	ran            bool
+}
+
+func (bot *Bot[T]) configMutable(method string) bool {
+	bot.runStateMu.Lock()
+	defer bot.runStateMu.Unlock()
+	if !bot.ran {
+		return true
+	}
+	if bot.logger != nil {
+		bot.logger.Warnln(fmt.Sprintf("%s called after bot configuration was frozen; ignoring", method))
+	}
+	return false
 }
 
 // NewBot creates and initializes a new Bot instance using the provided BotOpts.
@@ -93,13 +144,12 @@ type Bot[T DbContext] struct {
 //   - Fetches bot username via GetMe()
 //   - Sets up DraftProvider with random IDs
 //   - Adds API and Uploader loggers to extraLoggers
-//
-// Panics if:
-//   - Token is empty
-//   - GetMe() fails (invalid token or network error)
-func NewBot[T any](opts *BotOpts) *Bot[T] {
+func NewBot[T any](opts *BotOpts) (*Bot[T], error) {
+	if opts == nil {
+		return nil, ErrOptsIsNil
+	}
 	if opts.Token == "" {
-		panic("laniakea: BotOpts.Token is required")
+		return nil, ErrTokenRequired
 	}
 
 	updateQueue := make(chan *tgapi.Update, 512)
@@ -130,22 +180,26 @@ func NewBot[T any](opts *BotOpts) *Bot[T] {
 	}
 
 	bot := &Bot[T]{
-		updateOffset:  0,
-		errorTemplate: "%s",
-		payloadType:   BotPayloadBase64,
-		maxWorkers:    workers,
-		updateQueue:   updateQueue,
-		api:           api,
-		uploader:      uploader,
-		debug:         opts.Debug,
-		prefixes:      prefixes,
-		token:         opts.Token,
-		plugins:       make([]Plugin[T], 0),
-		updateTypes:   append([]tgapi.UpdateType{}, opts.UpdateTypes...),
-		runners:       make([]Runner[T], 0),
-		extraLoggers:  make([]*slog.Logger, 0),
-		l10n:          &L10n{},
-		draftProvider: NewRandomDraftProvider(api),
+		updateOffset:      0,
+		errorTemplate:     "%s",
+		payloadType:       BotPayloadBase64,
+		strictPayloadType: opts.StrictPayloadType,
+		maxWorkers:        workers,
+		updateQueue:       updateQueue,
+		api:               api,
+		uploader:          uploader,
+		debug:             opts.Debug,
+		prefixes:          prefixes,
+		token:             opts.Token,
+		plugins:           make([]Plugin[T], 0),
+		updateTypes:       append([]tgapi.UpdateType{}, opts.UpdateTypes...),
+		runners:           make([]Runner[T], 0),
+		extraLoggers:      make([]*slog.Logger, 0),
+		l10n:              &L10n{},
+		draftProvider:     NewRandomDraftProvider(api),
+
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
 	}
 
 	// Add API and Uploader loggers to extraLoggers for unified output
@@ -163,7 +217,7 @@ func NewBot[T any](opts *BotOpts) *Bot[T] {
 	u, err := api.GetMe()
 	if err != nil {
 		_ = bot.Close()
-		bot.logger.Fatal(err)
+		return nil, err
 	}
 	bot.username = Val(u.Username, "")
 	if bot.username == "" {
@@ -171,46 +225,66 @@ func NewBot[T any](opts *BotOpts) *Bot[T] {
 	}
 	bot.logger.Infoln(fmt.Sprintf("Authorized as %s (@%s)", u.FirstName, Val(u.Username, "unknown")))
 
-	return bot
+	return bot, nil
 }
 
 // Close gracefully shuts down bot-owned resources.
 //
 // Close shuts down, in order:
 //   - Registered plugins via Plugin.Close
+//   - Webhook logger (if initialized)
 //   - Uploader (waits for pending uploads)
 //   - API client internals
 //   - RequestLogger (if enabled)
 //   - Main logger
 //
-// RunWithContext does not call Close automatically. The caller is responsible
-// for invoking Close after RunWithContext returns to release these resources.
+// RunWithContext and RunWebHookWithContext do not call Close automatically.
+// The caller is responsible for invoking Close after runtime returns to release
+// these resources.
 //
 // Close returns a joined error containing all shutdown failures, if any.
 func (bot *Bot[T]) Close() error {
 	var e []error
+	logCloseErr := func(err error) {
+		if err == nil {
+			return
+		}
+		if bot.logger != nil {
+			bot.logger.Errorln(err)
+		}
+		e = append(e, err)
+	}
 
 	for _, p := range bot.plugins {
 		if err := p.Close(); err != nil {
 			e = append(e, err)
 		}
 	}
-	if err := bot.uploader.Close(); err != nil {
-		bot.logger.Errorln(err)
-		e = append(e, err)
+	if bot.webHookLogger != nil {
+		if err := bot.webHookLogger.Close(); err != nil {
+			logCloseErr(err)
+		}
+		bot.webHookLogger = nil
 	}
-	if err := bot.api.Close(); err != nil {
-		bot.logger.Errorln(err)
-		e = append(e, err)
+	if bot.uploader != nil {
+		if err := bot.uploader.Close(); err != nil {
+			logCloseErr(err)
+		}
+	}
+	if bot.api != nil {
+		if err := bot.api.Close(); err != nil {
+			logCloseErr(err)
+		}
 	}
 	if bot.RequestLogger != nil {
 		if err := bot.RequestLogger.Close(); err != nil {
-			bot.logger.Errorln(err)
-			e = append(e, err)
+			logCloseErr(err)
 		}
 	}
-	if err := bot.logger.Close(); err != nil {
-		e = append(e, err)
+	if bot.logger != nil {
+		if err := bot.logger.Close(); err != nil {
+			e = append(e, err)
+		}
 	}
 	return errors.Join(e...)
 }
@@ -226,40 +300,6 @@ func (bot *Bot[T]) CloseRemote(ctx context.Context) error {
 	return nil
 }
 
-// initLoggers configures the main and optional request loggers.
-//
-// Uses DEBUG flag to set log level (DEBUG if true, FATAL otherwise).
-// Writes to stdout in JSON format by default.
-// If WriteToFile is true, writes to main.log and requests.log in LoggerBasePath.
-func (bot *Bot[T]) initLoggers(opts *BotOpts) {
-	level := slog.FATAL
-	if opts.Debug {
-		level = slog.DEBUG
-	}
-
-	bot.logger = utils.CreateLogger("BOT", level)
-	if opts.WriteToFile {
-		path := fmt.Sprintf("%s/main.log", strings.TrimRight(opts.LoggerBasePath, "/"))
-		logger, err := utils.CreateFileLogger("BOT", level, path)
-		if err != nil {
-			bot.logger.Fatal(err)
-		}
-		bot.logger = logger
-	}
-
-	if opts.UseRequestLogger {
-		bot.RequestLogger = utils.CreateLogger("REQUESTS", level)
-		if opts.WriteToFile {
-			path := fmt.Sprintf("%s/requests.log", strings.TrimRight(opts.LoggerBasePath, "/"))
-			logger, err := utils.CreateFileLogger("REQUESTS", level, path)
-			if err != nil {
-				bot.logger.Fatal(err)
-			}
-			bot.RequestLogger = logger
-		}
-	}
-}
-
 // GetUpdateOffset returns the current update offset (thread-safe).
 func (bot *Bot[T]) GetUpdateOffset() int {
 	bot.updateOffsetMu.Lock()
@@ -274,16 +314,9 @@ func (bot *Bot[T]) SetUpdateOffset(offset int) {
 	bot.updateOffset = offset
 }
 
-// GetUpdateTypes returns the list of update types the bot is configured to receive.
-func (bot *Bot[T]) GetUpdateTypes() []tgapi.UpdateType { return bot.updateTypes }
-
 // GetLogger returns the main bot logger.
 func (bot *Bot[T]) GetLogger() *slog.Logger { return bot.logger }
 
-// GetDBContext returns the injected database context.
-// Returns nil if not set via DatabaseContext().
-func (bot *Bot[T]) GetDBContext() *T { return bot.dbContext }
-
 // GetLoggerLevel returns the effective log level derived from the bot's debug
 // flag.
 func (bot *Bot[T]) GetLoggerLevel() slog.LogLevel {
@@ -300,216 +333,6 @@ func (bot *Bot[T]) L10n(lang, key string) string {
 	return bot.l10n.Translate(lang, key)
 }
 
-// SetDraftProvider replaces the default DraftProvider with a custom one.
-// Useful for using LinearDraftIdGenerator to persist draft IDs across restarts.
-func (bot *Bot[T]) SetDraftProvider(p *DraftProvider) *Bot[T] {
-	bot.draftProvider = p
-	return bot
-}
-
-// DatabaseContext injects a database context into the bot.
-// This context is accessible to plugins and middleware via GetDBContext().
-func (bot *Bot[T]) DatabaseContext(ctx *T) *Bot[T] {
-	bot.dbContext = ctx
-	return bot
-}
-
-// UpdateTypes sets the list of update types the bot will request from Telegram.
-// Overwrites any previously set types.
-func (bot *Bot[T]) UpdateTypes(t ...tgapi.UpdateType) *Bot[T] {
-	bot.updateTypes = make([]tgapi.UpdateType, 0)
-	bot.updateTypes = append(bot.updateTypes, t...)
-	return bot
-}
-
-// SetPayloadType sets the payload encoding type used for callback data.
-// JSON stores payload as a string: `{"cmd":"command","args":[...]}`.
-// Base64 stores the same JSON encoded as a Base64URL string.
-func (bot *Bot[T]) SetPayloadType(t BotPayloadType) *Bot[T] {
-	bot.payloadType = t
-	return bot
-}
-
-// AddUpdateType adds one or more update types to the list.
-// Does not overwrite existing types.
-func (bot *Bot[T]) AddUpdateType(t ...tgapi.UpdateType) *Bot[T] {
-	bot.updateTypes = append(bot.updateTypes, t...)
-	return bot
-}
-
-// AddPrefixes adds one or more command prefixes (e.g., "/", "!").
-// Must have at least one prefix before Run().
-func (bot *Bot[T]) AddPrefixes(prefixes ...string) *Bot[T] {
-	bot.prefixes = append(bot.prefixes, prefixes...)
-	return bot
-}
-
-// ErrorTemplate sets the format string for error messages sent to users.
-// Use "%s" to insert the error message.
-// Example: "❌ Error: %s" → "❌ Error: Command not found".
-func (bot *Bot[T]) ErrorTemplate(s string) *Bot[T] {
-	bot.errorTemplate = s
-	return bot
-}
-
-// Debug enables or disables debug logging.
-func (bot *Bot[T]) Debug(debug bool) *Bot[T] {
-	bot.debug = debug
-	level := slog.FATAL
-	if debug {
-		level = slog.DEBUG
-	}
-
-	bot.logger.Level(level)
-	if bot.RequestLogger != nil {
-		bot.RequestLogger.Level(level)
-	}
-	for _, p := range bot.plugins {
-		if p.logger == nil {
-			continue
-		}
-		p.logger.Level(level)
-	}
-	return bot
-}
-
-// AddPlugins registers one or more plugins.
-// Plugins are executed in registration order unless filtered by middleware.
-//
-// Registration is a commit point for plugin configuration. The Bot stores
-// plugin metadata internally, so plugins must be fully configured before they
-// are passed here. Post-registration mutation through the original *Plugin is
-// not a supported API, even if some changes appear to work due to shared maps.
-func (bot *Bot[T]) AddPlugins(plugin ...*Plugin[T]) *Bot[T] {
-	level := bot.GetLoggerLevel()
-	for _, p := range plugin {
-		if p.logger == nil {
-			logger := utils.CreateLogger(p.name, level)
-			p.SetLogger(logger)
-		}
-		bot.plugins = append(bot.plugins, *p)
-		bot.logger.Debugln(fmt.Sprintf("plugins with name \"%s\" registered", p.name))
-	}
-	return bot
-}
-
-// AddMiddleware registers one or more middleware handlers.
-//
-// Middleware are executed in order of increasing .order value before plugins.
-// If two middleware have the same order, they are sorted lexicographically by name.
-//
-// Middleware can:
-//   - Modify or reject updates before they reach plugins
-//   - Inject context (e.g., user auth state, rate limit status)
-//   - Log, validate, or transform incoming data
-//
-// Example:
-//
-//	bot.AddMiddleware(&authMiddleware, &rateLimitMiddleware)
-//
-// Panics if any middleware has a nil name.
-func (bot *Bot[T]) AddMiddleware(middleware ...Middleware[T]) *Bot[T] {
-	for _, m := range middleware {
-		if m.name == "" {
-			panic("laniakea: middleware must have a non-empty name")
-		}
-		bot.middlewares = append(bot.middlewares, m)
-		bot.logger.Debugln(fmt.Sprintf("middleware with name \"%s\" registered", m.name))
-	}
-
-	// Stable sort by order (ascending), then by name (lexicographic)
-	sort.Slice(bot.middlewares, func(i, j int) bool {
-		first := bot.middlewares[i]
-		second := bot.middlewares[j]
-		if first.order != second.order {
-			return first.order < second.order
-		}
-		return first.name < second.name
-	})
-
-	return bot
-}
-
-// AddRunner registers a background runner to execute concurrently with the bot.
-//
-// Runners are goroutines that run independently of update processing.
-// Common use cases:
-//   - Periodic cleanup (e.g., expiring drafts, clearing temp files)
-//   - Metrics collection or health checks
-//   - Scheduled tasks (e.g., daily announcements)
-//
-// Runners are started immediately after Bot.Run() is called.
-//
-// Example:
-//
-//	bot.AddRunner(&cleanupRunner)
-//
-// Panics if runner has a nil name.
-func (bot *Bot[T]) AddRunner(runner Runner[T]) *Bot[T] {
-	if runner.name == "" {
-		panic("laniakea: runner must have a non-empty name")
-	}
-	bot.runners = append(bot.runners, runner)
-	bot.logger.Debugln(fmt.Sprintf("runner with name \"%s\" registered", runner.name))
-	return bot
-}
-
-// AddL10n sets the localization (i18n) provider for the bot.
-//
-// The L10n instance must be pre-populated with translations.
-// Translations are accessed via Bot.L10n(lang, key).
-//
-// Example:
-//
-//	l10n := l10n.New()
-//	l10n.Add("en", "hello", "Hello!")
-//	l10n.Add("es", "hello", "¡Hola!")
-//	bot.AddL10n(l10n)
-//
-// Replaces any previously set L10n instance.
-func (bot *Bot[T]) AddL10n(l *L10n) *Bot[T] {
-	if l == nil {
-		bot.logger.Warn("AddL10n called with nil L10n; localization will be disabled")
-		return bot
-	}
-	bot.l10n = l
-	return bot
-}
-
-// AddDatabaseLoggerWriter adds a database logger writer to all loggers.
-//
-// The writer will receive logs from:
-//   - Main bot logger
-//   - Request logger (if enabled)
-//   - API and Uploader loggers
-//   - Already registered plugin loggers
-//
-// Call this after AddPlugins if plugin loggers should also receive the writer.
-// Plugins registered later do not automatically inherit previously added
-// database writers; call AddDatabaseLoggerWriter again after adding them.
-//
-// Example:
-//
-//	bot.AddDatabaseLoggerWriter(func(db *MyDB) slog.LoggerWriter {
-//	    return db.QueryLogger()
-//	})
-func (bot *Bot[T]) AddDatabaseLoggerWriter(writer DbLogger[T]) *Bot[T] {
-	w := writer(bot.dbContext)
-	bot.logger.AddWriter(w)
-	if bot.RequestLogger != nil {
-		bot.RequestLogger.AddWriter(w)
-	}
-	for _, l := range bot.extraLoggers {
-		l.AddWriter(w)
-	}
-	for _, p := range bot.plugins {
-		if p.logger != nil {
-			p.logger.AddWriter(w)
-		}
-	}
-	return bot
-}
-
 // RunWithContext starts the bot with a given context for graceful shutdown.
 //
 // This is the main entry point for bot execution. It:
@@ -523,31 +346,29 @@ func (bot *Bot[T]) AddDatabaseLoggerWriter(writer DbLogger[T]) *Bot[T] {
 //   - Finishes processing currently queued updates
 //   - Waits for registered runners to exit
 //
+// If you are switching an existing deployment from webhook delivery to polling,
+// delete the current webhook first with CloseWebHook or tgapi.DeleteWebhook.
+// Telegram keeps webhook delivery active until the webhook is removed.
+//
 // RunWithContext does not close API, uploader, or logger resources on return.
 // The caller must invoke Close after RunWithContext finishes.
 //
-// Example:
-//
-//	ctx, cancel := context.WithCancel(context.Background())
-//	go bot.RunWithContext(ctx)
-//	// ... later ...
-//	cancel() // triggers graceful shutdown
-//	_ = bot.Close(context.Background())
-func (bot *Bot[T]) RunWithContext(ctx context.Context) {
+// A Bot is single-use. After RunWithContext returns, later calls return ErrBotAlreadyRun.
+func (bot *Bot[T]) RunWithContext(ctx context.Context) error {
 	if len(bot.prefixes) == 0 {
-		bot.logger.Fatalln("no prefixes defined")
-		return
+		return ErrNoPrefixes
 	}
 
 	if len(bot.plugins) == 0 {
-		bot.logger.Fatalln("no plugins defined")
-		return
+		return ErrNoPlugins
 	}
+	if err := bot.beginRun(); err != nil {
+		return err
+	}
+	defer bot.finishRun()
 
 	bot.ExecRunners(ctx)
 
-	bot.logger.Infoln("Bot running. Press CTRL+C to exit.")
-
 	// Start update polling in a goroutine
 	go func() {
 		defer func() {
@@ -556,6 +377,8 @@ func (bot *Bot[T]) RunWithContext(ctx context.Context) {
 			}
 			close(bot.updateQueue)
 		}()
+		retryDelay := time.Duration(0)
+		retryCount := 0
 		for {
 			select {
 			case <-ctx.Done():
@@ -567,14 +390,36 @@ func (bot *Bot[T]) RunWithContext(ctx context.Context) {
 						return
 					}
 					bot.logger.Errorln("failed to fetch updates:", err)
+					retryDelay = nextPollRetryDelay(retryDelay)
+					retryCount++
+					bot.safeEmitEvent(ctx, PollingRetryEvent{
+						Attempt: retryCount,
+						Delay:   retryDelay,
+						Err:     err,
+					})
+					bot.safeEmitEvent(ctx, ErrorEvent{
+						Plugin:      "bot",
+						HandlerKind: HandlerPollingKind,
+						HandlerName: "getUpdates",
+						Err:         err,
+						UserFacing:  false,
+					})
+					timer := time.NewTimer(retryDelay)
+					select {
+					case <-ctx.Done():
+						if !timer.Stop() {
+							<-timer.C
+						}
+						return
+					case <-timer.C:
+					}
 					continue
 				}
+				retryDelay = 0
+				retryCount = 0
 
 				for _, update := range updates {
-					u := update // copy loop variable to avoid race condition
-					select {
-					case bot.updateQueue <- &u:
-					case <-ctx.Done():
+					if err := bot.enqueueUpdate(ctx, update); err != nil {
 						return
 					}
 				}
@@ -582,17 +427,13 @@ func (bot *Bot[T]) RunWithContext(ctx context.Context) {
 		}
 	}()
 
+	bot.logger.Infoln("Bot running. Press CTRL+C to exit.")
 	// Start worker pool for concurrent update handling
-	pool := pond.NewPool(bot.maxWorkers)
-	for update := range bot.updateQueue {
-		u := update // capture loop variable
-		pool.Submit(func() {
-			bot.handle(u)
-		})
-	}
-	pool.Stop() // Wait for all tasks to complete and stop the pool
+	bot.startUpdateWorkers(ctx)
+
 	bot.runnerOnceWG.Wait()
 	bot.runnerBgWG.Wait()
+	return nil
 }
 
 // Run starts the bot using a background context.
@@ -601,6 +442,6 @@ func (bot *Bot[T]) RunWithContext(ctx context.Context) {
 // Use this for simple bots where graceful shutdown is not required.
 //
 // For production use, prefer RunWithContext to handle SIGINT/SIGTERM gracefully.
-func (bot *Bot[T]) Run() {
-	bot.RunWithContext(context.Background())
+func (bot *Bot[T]) Run() error {
+	return bot.RunWithContext(context.Background())
 }

bot_config.go

@@ -0,0 +1,224 @@
+package laniakea
+
+import (
+	"fmt"
+	"slices"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+// AddPrefixes adds one or more command prefixes (e.g., "/", "!").
+// The bot must have at least one prefix before any runtime entry point starts.
+func (bot *Bot[T]) AddPrefixes(prefixes ...string) *Bot[T] {
+	if !bot.configMutable("AddPrefixes") {
+		return bot
+	}
+	bot.prefixes = append(bot.prefixes, prefixes...)
+	return bot
+}
+
+// SetDraftProvider replaces the default DraftProvider with a custom one.
+// Useful for using LinearDraftIdGenerator to persist draft IDs across restarts.
+func (bot *Bot[T]) SetDraftProvider(p *DraftProvider) *Bot[T] {
+	if !bot.configMutable("SetDraftProvider") {
+		return bot
+	}
+	bot.draftProvider = p
+	return bot
+}
+
+// GetDraftProvider returns the draft provider currently used by the bot.
+func (bot *Bot[T]) GetDraftProvider() *DraftProvider {
+	return bot.draftProvider
+}
+
+// SetObserver sets an event observer for instrumentation.
+func (bot *Bot[T]) SetObserver(observer Observer) *Bot[T] {
+	if !bot.configMutable("SetObserver") {
+		return bot
+	}
+	if observer == nil {
+		if bot.logger != nil {
+			bot.logger.Warn("SetObserver called with nil observer; instrumentation will be disabled")
+		}
+		bot.observer = nil
+		return bot
+	}
+	bot.observer = observer
+	return bot
+}
+
+// GetObserver returns the bot's event observer, or nil if no observer is set.
+func (bot *Bot[T]) GetObserver() Observer {
+	return bot.observer
+}
+
+// SetSessionStore replaces the session store used for scene management.
+func (bot *Bot[T]) SetSessionStore(store SessionStore) *Bot[T] {
+	if !bot.configMutable("SetSessionStore") {
+		return bot
+	}
+	if store == nil {
+		bot.logger.Warn("SetSessionStore called with nil store; using default MemorySessionStore")
+		return bot
+	}
+	bot.sessionStore = store
+	return bot
+}
+
+// GetSessionStore returns the session store used for scene management.
+func (bot *Bot[T]) GetSessionStore() SessionStore {
+	return bot.sessionStore
+}
+
+// SetSceneScopePriority sets the lookup order for resolving active scene sessions.
+func (bot *Bot[T]) SetSceneScopePriority(priority []SceneScope) *Bot[T] {
+	if !bot.configMutable("SetSceneScopePriority") {
+		return bot
+	}
+	newPriority := make([]SceneScope, 0, 3)
+	for _, scope := range priority {
+		if scope != SceneScopeUser && scope != SceneScopeChat && scope != SceneScopeUserChat {
+			bot.logger.Warnln(fmt.Sprintf("invalid scene scope %v in priority list; ignoring", scope))
+			continue
+		}
+		if slices.Index(newPriority, scope) >= 0 {
+			bot.logger.Warnln(fmt.Sprintf("duplicate scope %v in scene scope priority; ignoring duplicates", scope))
+			continue
+		}
+		newPriority = append(newPriority, scope)
+	}
+	if len(newPriority) == 0 || len(newPriority) > 3 {
+		bot.logger.Warnln("scene scope priority must have 1 to 3 scopes; ignoring invalid input")
+		return bot
+	}
+	bot.sceneScopePriority = append([]SceneScope(nil), newPriority...)
+	return bot
+}
+
+// SetAppData injects shared application data into the bot.
+//
+// The data is accessible to commands, payload handlers, middleware, scenes,
+// and runners through the generic type parameter T.
+//
+// For shared dependencies such as *sql.DB, prefer using a pointer type as T.
+// Value-typed application data is supported, but the bot warns once because
+// handlers receive T by value.
+func (bot *Bot[T]) SetAppData(ctx T) *Bot[T] {
+	if !bot.configMutable("SetAppData") {
+		return bot
+	}
+	if !bot.warnedValueData && shouldWarnOnValueAppData[T]() && bot.logger != nil {
+		bot.logger.Warnln("app data uses a value type; shared dependencies should usually use a pointer type as T")
+		bot.warnedValueData = true
+	}
+	bot.appData = ctx
+	bot.hasAppData = true
+	return bot
+}
+
+// GetAppData returns the injected application data.
+// If SetAppData was not called, it returns the zero value of T.
+func (bot *Bot[T]) GetAppData() T { return bot.appData }
+
+// SetUpdateTypes sets the list of update types the bot will request from Telegram.
+// Overwrites any previously set types.
+func (bot *Bot[T]) SetUpdateTypes(t ...tgapi.UpdateType) *Bot[T] {
+	if !bot.configMutable("UpdateTypes") {
+		return bot
+	}
+	bot.updateTypes = make([]tgapi.UpdateType, 0)
+	bot.updateTypes = append(bot.updateTypes, t...)
+	return bot
+}
+
+// AddUpdateType adds one or more update types to the list.
+// Does not overwrite existing types.
+func (bot *Bot[T]) AddUpdateType(t ...tgapi.UpdateType) *Bot[T] {
+	if !bot.configMutable("AddUpdateType") {
+		return bot
+	}
+	bot.updateTypes = append(bot.updateTypes, t...)
+	return bot
+}
+
+// GetUpdateTypes returns the list of update types the bot is configured to receive.
+func (bot *Bot[T]) GetUpdateTypes() []tgapi.UpdateType {
+	return append([]tgapi.UpdateType(nil), bot.updateTypes...)
+}
+
+// SetPayloadType sets the default payload encoding type used for callback data.
+// JSON stores payload as a string: `{"cmd":"command","args":[...]}`.
+// Base64 stores the same JSON encoded as a Base64URL string.
+// InlineKeyboard.SetPayloadType may override this value for an individual keyboard.
+func (bot *Bot[T]) SetPayloadType(t BotPayloadType) *Bot[T] {
+	if !bot.configMutable("SetPayloadType") {
+		return bot
+	}
+	bot.payloadType = t
+	return bot
+}
+
+// GetPayloadType returns the bot's default callback payload encoding type.
+func (bot *Bot[T]) GetPayloadType() BotPayloadType { return bot.payloadType }
+
+// SetStrictPayloadType enables or disables strict callback payload decoding.
+// When enabled, callback payloads must match the bot's default payload type.
+func (bot *Bot[T]) SetStrictPayloadType(strict bool) *Bot[T] {
+	if !bot.configMutable("SetStrictPayloadType") {
+		return bot
+	}
+	bot.strictPayloadType = strict
+	return bot
+}
+
+// SetErrorTemplate sets the format string for error messages sent to users.
+// Use "%s" to insert the error message.
+// Example: "❌ Error: %s" → "❌ Error: Command not found".
+func (bot *Bot[T]) SetErrorTemplate(s string) *Bot[T] {
+	if !bot.configMutable("ErrorTemplate") {
+		return bot
+	}
+	bot.errorTemplate = s
+	return bot
+}
+
+// SetDebug enables or disables debug logging.
+func (bot *Bot[T]) SetDebug(debug bool) *Bot[T] {
+	bot.debug = debug
+	level := slog.FATAL
+	if debug {
+		level = slog.DEBUG
+	}
+
+	bot.logger.Level(level)
+	if bot.RequestLogger != nil {
+		bot.RequestLogger.Level(level)
+	}
+	for _, p := range bot.plugins {
+		if p.logger == nil {
+			continue
+		}
+		p.logger.Level(level)
+	}
+	return bot
+}
+
+// SetL10n sets the localization (i18n) provider for the bot.
+//
+// The L10n instance must be pre-populated with translations.
+// Translations are accessed via Bot.L10n(lang, key).
+//
+// Replaces any previously set L10n instance.
+func (bot *Bot[T]) SetL10n(l *L10n) *Bot[T] {
+	if !bot.configMutable("SetL10n") {
+		return bot
+	}
+	if l == nil {
+		bot.logger.Warn("SetL10n called with nil L10n; localization will be disabled")
+		return bot
+	}
+	bot.l10n = l
+	return bot
+}

bot_opts.go

@@ -5,13 +5,13 @@ import (
 	"strconv"
 	"strings"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
 // BotOpts holds configuration options for initializing a Bot.
 //
 // Values are loaded from environment variables via LoadOptsFromEnv().
-// Use NewOpts() to create a zero-value struct and set fields manually.
+// Use &BotOpts{} to create a value and set fields manually.
 type BotOpts struct {
 	// Token is the Telegram bot token (required).
 	Token string
@@ -56,7 +56,11 @@ type BotOpts struct {
 	// Use this to prioritize responsiveness over reliability.
 	DropRLOverflow bool
 
-	// MaxWorkers is the maximum number of concurrency running update handlers.
+	// StrictPayloadType disables callback payload fallback decoding.
+	// When enabled, the bot accepts only the configured default payload type.
+	StrictPayloadType bool
+
+	// MaxWorkers is the maximum number of update handlers that may run concurrently.
 	MaxWorkers int
 }
 
@@ -75,20 +79,31 @@ type BotOpts struct {
 //   - API_URL: custom API endpoint
 //   - RATE_LIMIT: max requests per second (default: 30)
 //   - DROP_RL_OVERFLOW: "true" to drop updates on rate limit overflow
+//   - STRICT_PAYLOAD_TYPE: "true" to reject callback payloads encoded in a different format
+//   - MAX_WORKERS: maximum number of concurrent update handlers (default: 32)
 //
-// Returns a populated BotOpts. If TG_TOKEN is missing, behavior is undefined.
+// Returns a populated BotOpts.
+// NewBot validates required fields and returns ErrTokenRequired when TG_TOKEN is missing.
 func LoadOptsFromEnv() *BotOpts {
 	rateLimit := 30
+	maxWorkers := 32
+
+	stringUpdateTypes := splitEnvList(os.Getenv("UPDATE_TYPES"))
+	updateTypes := make([]tgapi.UpdateType, 0, len(stringUpdateTypes))
+	for _, updateType := range stringUpdateTypes {
+		updateTypes = append(updateTypes, tgapi.UpdateType(updateType))
+	}
+
 	if rl := os.Getenv("RATE_LIMIT"); rl != "" {
 		if n, err := strconv.Atoi(rl); err == nil {
 			rateLimit = n
 		}
 	}
 
-	stringUpdateTypes := splitEnvList(os.Getenv("UPDATE_TYPES"))
-	updateTypes := make([]tgapi.UpdateType, 0, len(stringUpdateTypes))
-	for _, updateType := range stringUpdateTypes {
-		updateTypes = append(updateTypes, tgapi.UpdateType(updateType))
+	if mw := os.Getenv("MAX_WORKERS"); mw != "" {
+		if n, err := strconv.Atoi(os.Getenv("MAX_WORKERS")); err == nil {
+			maxWorkers = n
+		}
 	}
 
 	return &BotOpts{
@@ -106,8 +121,11 @@ func LoadOptsFromEnv() *BotOpts {
 		UseTestServer: os.Getenv("USE_TEST_SERVER") == "true",
 		APIUrl:        os.Getenv("API_URL"),
 
-		RateLimit:      rateLimit,
-		DropRLOverflow: os.Getenv("DROP_RL_OVERFLOW") == "true",
+		RateLimit:         rateLimit,
+		DropRLOverflow:    os.Getenv("DROP_RL_OVERFLOW") == "true",
+		StrictPayloadType: os.Getenv("STRICT_PAYLOAD_TYPE") == "true",
+
+		MaxWorkers: maxWorkers,
 	}
 }
 
@@ -196,6 +214,13 @@ func (opts *BotOpts) SetDropRLOverflow(drop bool) *BotOpts {
 	return opts
 }
 
+// SetStrictPayloadType enables or disables strict callback payload decoding.
+// When enabled, the bot accepts only the configured default payload type.
+func (opts *BotOpts) SetStrictPayloadType(strict bool) *BotOpts {
+	opts.StrictPayloadType = strict
+	return opts
+}
+
 // SetMaxWorkers sets the maximum number of concurrent update handlers.
 // Must be called before NewBot, as the value is captured during bot creation.
 //

bot_opts_test.go

@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
 func TestLoadOptsFromEnvIgnoresEmptyUpdateTypes(t *testing.T) {
@@ -45,3 +45,12 @@ func TestLoadPrefixesFromEnvDropsEmptyValues(t *testing.T) {
 		t.Fatalf("unexpected prefixes: got %v want %v", got, want)
 	}
 }
+
+func TestLoadOptsFromEnvReadsStrictPayloadType(t *testing.T) {
+	t.Setenv("STRICT_PAYLOAD_TYPE", "true")
+
+	opts := LoadOptsFromEnv()
+	if !opts.StrictPayloadType {
+		t.Fatal("expected StrictPayloadType to be enabled")
+	}
+}

bot_register.go

@@ -0,0 +1,157 @@
+package laniakea
+
+import (
+	"fmt"
+	"sort"
+
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+)
+
+// AddPlugins registers one or more plugins.
+// Plugins are executed in registration order unless filtered by middleware.
+//
+// Registration is a commit point for plugin configuration. The Bot stores
+// plugin metadata internally, so plugins must be fully configured before they
+// are passed here. Post-registration mutation through the original *Plugin is
+// not a supported API, even if some changes appear to work due to shared maps.
+func (bot *Bot[T]) AddPlugins(plugin ...*Plugin[T]) *Bot[T] {
+	if !bot.configMutable("AddPlugins") {
+		return bot
+	}
+	level := bot.GetLoggerLevel()
+	for _, p := range plugin {
+		if p == nil {
+			if bot.logger != nil {
+				bot.logger.Warn("nil plugin skipped")
+			}
+			continue
+		}
+		cloned := clonePlugin(p)
+		if cloned.logger == nil {
+			cloned.logger = utils.CreateLogger(cloned.name, level)
+		}
+		bot.plugins = append(bot.plugins, cloned)
+		if bot.logger != nil {
+			bot.logger.Debugln(fmt.Sprintf("plugins with name \"%s\" registered", cloned.name))
+		}
+	}
+	return bot
+}
+
+// AddMiddleware registers one or more middleware handlers.
+//
+// Middleware are executed in order of increasing .order value before plugins.
+// If two middleware have the same order, they are sorted lexicographically by name.
+//
+// Middleware can:
+//   - Modify or reject updates before they reach plugins
+//   - Inject context (e.g., user auth state, rate limit status)
+//   - Log, validate, or transform incoming data
+//
+// Example:
+//
+//	bot.AddMiddleware(authMiddleware, rateLimitMiddleware)
+//
+// Middleware with an empty name are skipped with a warning.
+func (bot *Bot[T]) AddMiddleware(middleware ...Middleware[T]) *Bot[T] {
+	if !bot.configMutable("AddMiddleware") {
+		return bot
+	}
+	for _, m := range middleware {
+		if m.name == "" {
+			bot.logger.Warnln("middleware must have a non-empty name")
+			continue
+		}
+		bot.middlewares = append(bot.middlewares, m)
+		bot.logger.Debugln(fmt.Sprintf("middleware with name \"%s\" registered", m.name))
+	}
+
+	// Stable sort by order (ascending), then by name (lexicographic)
+	sort.Slice(bot.middlewares, func(i, j int) bool {
+		first := bot.middlewares[i]
+		second := bot.middlewares[j]
+		if first.order != second.order {
+			return first.order < second.order
+		}
+		return first.name < second.name
+	})
+
+	return bot
+}
+
+// UsePolicy registers a Policy as a bot-level middleware.
+func (bot *Bot[T]) UsePolicy(name string, policy Policy[T]) *Bot[T] {
+	mw := RequirePolicy(name, policy)
+	return bot.AddMiddleware(mw)
+}
+
+// AddRunner registers a background runner to execute concurrently with the bot.
+//
+// Runners are goroutines that run independently of update processing.
+// Common use cases:
+//   - Periodic cleanup (e.g., expiring drafts, clearing temp files)
+//   - Metrics collection or health checks
+//   - Scheduled tasks (e.g., daily announcements)
+//
+// Runners start from the bot runtime entry points, immediately after
+// RunWithContext or RunWebHookWithContext begins.
+//
+// Example:
+//
+//	bot.AddRunner(cleanupRunner)
+//
+// Runners with an empty name are skipped with a warning.
+func (bot *Bot[T]) AddRunner(runner Runner[T]) *Bot[T] {
+	if !bot.configMutable("AddRunner") {
+		return bot
+	}
+	if runner.name == "" {
+		bot.logger.Warnln("runner must have a non-empty name")
+		return bot
+	}
+	bot.runners = append(bot.runners, runner)
+	bot.logger.Debugln(fmt.Sprintf("runner with name \"%s\" registered", runner.name))
+	return bot
+}
+
+// AddAppDataLoggerWriter adds an app-data-backed logger writer to all loggers.
+//
+// The writer will receive logs from:
+//   - Main bot logger
+//   - Request logger (if enabled)
+//   - API and Uploader loggers
+//   - Already registered plugin loggers
+//
+// Call this after AddPlugins if plugin loggers should also receive the writer.
+// Plugins registered later do not automatically inherit previously added
+// writers; call AddAppDataLoggerWriter again after adding them.
+//
+// Example:
+//
+//	bot.AddAppDataLoggerWriter(func(data *MyAppData) slog.LoggerWriter {
+//	    return data.QueryLogger()
+//	})
+func (bot *Bot[T]) AddAppDataLoggerWriter(writer AppDataLogger[T]) *Bot[T] {
+	if !bot.hasAppData {
+		bot.logger.Warnln("app data is not set; skipping app-data logger writer")
+		return bot
+	}
+	if isNilValue(bot.appData) {
+		bot.logger.Warnln("app data is nil; skipping app-data logger writer")
+		return bot
+	}
+	w := writer(bot.appData)
+	bot.logger.AddWriter(w)
+	if bot.RequestLogger != nil {
+		bot.RequestLogger.AddWriter(w)
+	}
+	for _, l := range bot.extraLoggers {
+		l.AddWriter(w)
+	}
+	for _, p := range bot.plugins {
+		if p.logger != nil {
+			p.logger.AddWriter(w)
+		}
+	}
+	return bot
+}

bot_scene.go

@@ -0,0 +1,59 @@
+package laniakea
+
+func (bot *Bot[T]) getSession(key string) (SceneSession, error) {
+	return bot.sessionStore.Get(key)
+}
+
+func (bot *Bot[T]) setSession(key string, session SceneSession) error {
+	return bot.sessionStore.Set(key, session)
+}
+
+func (bot *Bot[T]) deleteSession(key string) error {
+	return bot.sessionStore.Delete(key)
+}
+func (bot *Bot[T]) findScene(name string) (*sceneMeta, bool) {
+	for _, plugin := range bot.plugins {
+		scene, ok := plugin.scenes[name]
+		if !ok {
+			continue
+		}
+
+		steps := make(map[string]struct{}, len(scene.steps))
+		for step := range scene.steps {
+			steps[step] = struct{}{}
+		}
+
+		return &sceneMeta{
+			Name:  scene.Name,
+			Scope: scene.Scope,
+			Entry: scene.Entry,
+			Steps: steps,
+		}, true
+	}
+	return nil, false
+}
+
+func (bot *Bot[T]) findSceneSession(ctx *MsgContext) (string, SceneSession, error) {
+	var zero SceneSession
+
+	for _, scope := range bot.sceneScopePriority {
+		key, ok := buildSceneKey(scope, ctx)
+		if !ok {
+			continue
+		}
+
+		session, err := bot.sessionStore.Get(key)
+		if err != nil {
+			return "", zero, err
+		}
+		if session.Scene != "" {
+			return key, session, nil
+		}
+	}
+
+	return "", zero, ErrCantFindSession
+}
+
+func (bot *Bot[T]) buildSceneKey(scope SceneScope, ctx *MsgContext) (string, bool) {
+	return buildSceneKey(scope, ctx)
+}

bot_test.go

@@ -0,0 +1,590 @@
+package laniakea
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+type pollingRoundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f pollingRoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req)
+}
+
+type pollingRetryObserver struct {
+	recordingObserver
+	cancel context.CancelFunc
+}
+
+func (o *pollingRetryObserver) OnPollingRetry(ctx context.Context, ev PollingRetryEvent) {
+	o.recordingObserver.OnPollingRetry(ctx, ev)
+	if o.cancel != nil {
+		o.cancel()
+	}
+}
+
+type testObserver struct{}
+
+func (testObserver) OnReceiveUpdate(context.Context, UpdateReceivedEvent)  {}
+func (testObserver) OnHandledUpdate(context.Context, UpdateHandledEvent)   {}
+func (testObserver) OnHandlerStarted(context.Context, HandlerStartedEvent) {}
+func (testObserver) OnHandlerFinished(context.Context, HandlerFinishedEvent) {
+}
+func (testObserver) OnSceneTransition(context.Context, SceneTransitionEvent) {}
+func (testObserver) OnPolicyChecked(context.Context, PolicyCheckedEvent)     {}
+func (testObserver) OnRunnerFinished(context.Context, RunnerFinishedEvent)   {}
+func (testObserver) OnPollingRetry(context.Context, PollingRetryEvent)       {}
+func (testObserver) OnError(context.Context, ErrorEvent)                     {}
+
+func TestGetUpdateTypesReturnsCopy(t *testing.T) {
+	bot := &Bot[NoData]{updateTypes: []tgapi.UpdateType{tgapi.UpdateTypeMessage}}
+
+	got := bot.GetUpdateTypes()
+	got[0] = tgapi.UpdateTypeCallbackQuery
+
+	if want := []tgapi.UpdateType{tgapi.UpdateTypeMessage}; !reflect.DeepEqual(bot.updateTypes, want) {
+		t.Fatalf("GetUpdateTypes exposed internal slice: got %v want %v", bot.updateTypes, want)
+	}
+}
+
+func TestAddPluginsSnapshotsConfiguration(t *testing.T) {
+	bot := &Bot[NoData]{logger: slog.CreateLogger()}
+	plugin := NewPlugin[NoData]("demo")
+
+	cmd := plugin.NewCommand(func(ctx *MsgContext, db NoData) error { return nil }, "start")
+	plugin.AddMiddleware(NewMiddleware("base", func(ctx *MsgContext, db NoData) bool { return true }))
+
+	bot.AddPlugins(plugin)
+
+	cmd.SetDescription("mutated after registration")
+	plugin.NewCommand(func(ctx *MsgContext, db NoData) error { return nil }, "late")
+	plugin.AddMiddleware(NewMiddleware("late", func(ctx *MsgContext, db NoData) bool { return true }))
+
+	registered := bot.plugins[0]
+	if _, exists := registered.commands["late"]; exists {
+		t.Fatal("late command leaked into registered plugin snapshot")
+	}
+	if registered.commands["start"].description != "" {
+		t.Fatalf("registered command description unexpectedly mutated: %q", registered.commands["start"].description)
+	}
+	if len(registered.middlewares) != 1 {
+		t.Fatalf("registered middlewares unexpectedly mutated: got %d want 1", len(registered.middlewares))
+	}
+}
+
+func TestBotPayloadTypeConfiguration(t *testing.T) {
+	bot := &Bot[NoData]{payloadType: BotPayloadBase64}
+
+	if got := bot.GetPayloadType(); got != BotPayloadBase64 {
+		t.Fatalf("unexpected initial payload type: %q", got)
+	}
+	bot.SetPayloadType(BotPayloadJson)
+	if got := bot.GetPayloadType(); got != BotPayloadJson {
+		t.Fatalf("unexpected updated payload type: %q", got)
+	}
+	bot.SetStrictPayloadType(true)
+	if !bot.strictPayloadType {
+		t.Fatal("expected strict payload type to be enabled")
+	}
+}
+
+func TestAddPluginsSkipsNilPlugin(t *testing.T) {
+	bot := &Bot[NoData]{logger: slog.CreateLogger()}
+	plugin := NewPlugin[NoData]("demo")
+
+	bot.AddPlugins(nil, plugin)
+
+	if len(bot.plugins) != 1 {
+		t.Fatalf("expected exactly one registered plugin, got %d", len(bot.plugins))
+	}
+	if bot.plugins[0].name != "demo" {
+		t.Fatalf("unexpected plugin name: %q", bot.plugins[0].name)
+	}
+}
+
+func TestInitLoggersFallsBackToStdoutLoggerOnFileError(t *testing.T) {
+	bot := &Bot[NoData]{}
+
+	bot.initLoggers(&BotOpts{
+		Debug:            true,
+		WriteToFile:      true,
+		UseRequestLogger: true,
+		LoggerBasePath:   filepath.Join(t.TempDir(), "missing", "nested"),
+	})
+
+	if bot.logger == nil {
+		t.Fatal("expected main logger fallback")
+	}
+	if bot.RequestLogger == nil {
+		t.Fatal("expected request logger fallback")
+	}
+	if err := bot.RequestLogger.Close(); err != nil {
+		t.Fatalf("failed to close request logger: %v", err)
+	}
+	if err := bot.logger.Close(); err != nil {
+		t.Fatalf("failed to close main logger: %v", err)
+	}
+}
+
+func TestNextPollRetryDelay(t *testing.T) {
+	tests := []struct {
+		name string
+		prev time.Duration
+		want time.Duration
+	}{
+		{name: "initial", prev: 0, want: time.Second},
+		{name: "double", prev: 2 * time.Second, want: 4 * time.Second},
+		{name: "cap", prev: 20 * time.Second, want: 30 * time.Second},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := nextPollRetryDelay(tt.prev); got != tt.want {
+				t.Fatalf("nextPollRetryDelay(%s) = %s, want %s", tt.prev, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestAddDatabaseLoggerWriterSkipsWhenAppDataIsUnset(t *testing.T) {
+	bot := &Bot[NoData]{logger: slog.CreateLogger()}
+	called := false
+
+	bot.AddAppDataLoggerWriter(func(db NoData) slog.LoggerWriter {
+		called = true
+		return nil
+	})
+
+	if called {
+		t.Fatal("expected app-data logger writer to be skipped when app data is unset")
+	}
+}
+
+func TestAddDatabaseLoggerWriterSkipsWhenAppDataIsNil(t *testing.T) {
+	type testDB struct{}
+
+	bot := &Bot[*testDB]{logger: slog.CreateLogger()}
+	var db *testDB
+	bot.SetAppData(db)
+
+	called := false
+	bot.AddAppDataLoggerWriter(func(db *testDB) slog.LoggerWriter {
+		called = true
+		return nil
+	})
+
+	if called {
+		t.Fatal("expected app-data logger writer to be skipped when app data is nil")
+	}
+}
+
+func TestShouldWarnOnValueAppData(t *testing.T) {
+	type testDB struct{}
+	type dbIface interface{ Ping() error }
+
+	tests := []struct {
+		name string
+		got  bool
+		want bool
+	}{
+		{name: "NoData", got: shouldWarnOnValueAppData[NoData](), want: false},
+		{name: "pointer", got: shouldWarnOnValueAppData[*testDB](), want: false},
+		{name: "interface", got: shouldWarnOnValueAppData[dbIface](), want: false},
+		{name: "map", got: shouldWarnOnValueAppData[map[string]int](), want: false},
+		{name: "struct", got: shouldWarnOnValueAppData[testDB](), want: true},
+		{name: "int", got: shouldWarnOnValueAppData[int](), want: true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.got != tt.want {
+				t.Fatalf("shouldWarnOnValueAppData = %v, want %v", tt.got, tt.want)
+			}
+		})
+	}
+}
+
+func TestSetAppDataMarksValueWarningOnce(t *testing.T) {
+	type testDB struct{}
+
+	bot := &Bot[testDB]{logger: slog.CreateLogger()}
+	bot.SetAppData(testDB{})
+	if !bot.warnedValueData {
+		t.Fatal("expected value-typed app data to mark warning state")
+	}
+
+	ptrBot := &Bot[*testDB]{logger: slog.CreateLogger()}
+	ptrBot.SetAppData(&testDB{})
+	if ptrBot.warnedValueData {
+		t.Fatal("did not expect pointer-typed app data to mark warning state")
+	}
+}
+
+func TestSetObserverAndGetObserver(t *testing.T) {
+	bot := &Bot[NoData]{logger: slog.CreateLogger()}
+	observer := testObserver{}
+
+	if got := bot.GetObserver(); got != nil {
+		t.Fatalf("expected nil observer by default, got %#v", got)
+	}
+
+	bot.SetObserver(observer)
+	if got := bot.GetObserver(); got == nil {
+		t.Fatal("expected observer to be stored")
+	}
+}
+
+func TestSetObserverNilClearsObserver(t *testing.T) {
+	bot := &Bot[NoData]{logger: slog.CreateLogger()}
+	bot.SetObserver(testObserver{})
+
+	if bot.GetObserver() == nil {
+		t.Fatal("expected observer to be set")
+	}
+
+	bot.SetObserver(nil)
+	if got := bot.GetObserver(); got != nil {
+		t.Fatalf("expected nil observer after clearing, got %#v", got)
+	}
+}
+
+func TestRunWithContextRejectsSecondRun(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	bot := &Bot[NoData]{
+		logger:      slog.CreateLogger(),
+		prefixes:    []string{"/"},
+		plugins:     []Plugin[NoData]{{name: "demo"}},
+		updateQueue: make(chan *tgapi.Update, 1),
+		maxWorkers:  1,
+	}
+
+	if err := bot.RunWithContext(ctx); err != nil {
+		t.Fatalf("first RunWithContext returned error: %v", err)
+	}
+	if err := bot.RunWithContext(ctx); !errors.Is(err, ErrBotAlreadyRun) {
+		t.Fatalf("expected ErrBotAlreadyRun on second run, got %v", err)
+	}
+}
+
+func TestCloseDoesNotDeleteWebhook(t *testing.T) {
+	requests := 0
+	client := &http.Client{
+		Transport: pollingRoundTripFunc(func(req *http.Request) (*http.Response, error) {
+			requests++
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":true}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("http://example.invalid").
+			SetHTTPClient(client),
+	)
+	uploader := tgapi.NewUploader(api)
+
+	bot := &Bot[NoData]{
+		logger:        slog.CreateLogger(),
+		webHookLogger: slog.CreateLogger(),
+		api:           api,
+		uploader:      uploader,
+	}
+
+	if err := bot.Close(); err != nil {
+		t.Fatalf("Close returned error: %v", err)
+	}
+	if requests != 0 {
+		t.Fatalf("Close performed unexpected remote requests: got %d want 0", requests)
+	}
+}
+
+func TestRunWithContextEmitsPollingRetryAndErrorEvents(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	observer := &pollingRetryObserver{cancel: cancel}
+
+	client := &http.Client{
+		Transport: pollingRoundTripFunc(func(r *http.Request) (*http.Response, error) {
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":false,"error_code":500,"description":"boom"}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("http://example.invalid").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		_ = api.Close()
+	}()
+
+	bot := &Bot[NoData]{
+		logger:      slog.CreateLogger(),
+		api:         api,
+		prefixes:    []string{"/"},
+		plugins:     []Plugin[NoData]{{name: "demo"}},
+		updateQueue: make(chan *tgapi.Update, 1),
+		maxWorkers:  1,
+		observer:    observer,
+	}
+
+	if err := bot.RunWithContext(ctx); err != nil {
+		t.Fatalf("RunWithContext returned error: %v", err)
+	}
+
+	if len(observer.retries) != 1 {
+		t.Fatalf("expected one polling retry event, got %d", len(observer.retries))
+	}
+	if got := observer.retries[0]; got.Attempt != 1 || got.Delay <= 0 || got.Err == nil {
+		t.Fatalf("unexpected polling retry event: %#v", got)
+	}
+	if len(observer.errors) != 1 {
+		t.Fatalf("expected one polling error event, got %d", len(observer.errors))
+	}
+	if got := observer.errors[0]; got.HandlerKind != HandlerPollingKind || got.HandlerName != "getUpdates" || got.Plugin != "bot" || got.Err == nil || got.UserFacing {
+		t.Fatalf("unexpected polling error event: %#v", got)
+	}
+}
+
+func TestBotConfigurationFreezesAfterRunStarts(t *testing.T) {
+	type testDB struct{ Name string }
+
+	makeBot := func() *Bot[*testDB] {
+		return &Bot[*testDB]{
+			logger:             slog.CreateLogger(),
+			prefixes:           []string{"/"},
+			updateTypes:        []tgapi.UpdateType{tgapi.UpdateTypeMessage},
+			payloadType:        BotPayloadBase64,
+			strictPayloadType:  false,
+			errorTemplate:      "%s",
+			l10n:               &L10n{},
+			draftProvider:      &DraftProvider{},
+			sessionStore:       NewMemorySessionStore(),
+			sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		}
+	}
+
+	tests := []struct {
+		name  string
+		check func(t *testing.T, bot *Bot[*testDB])
+	}{
+		{
+			name: "SetAppData",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := &testDB{Name: "before"}
+				bot.SetAppData(original)
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				later := &testDB{Name: "after"}
+				bot.SetAppData(later)
+				if bot.appData != original {
+					t.Fatal("SetAppData mutated after configuration freeze")
+				}
+			},
+		},
+		{
+			name: "UpdateTypes",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := append([]tgapi.UpdateType(nil), bot.updateTypes...)
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetUpdateTypes(tgapi.UpdateTypePoll)
+				if !reflect.DeepEqual(bot.updateTypes, original) {
+					t.Fatalf("UpdateTypes mutated after configuration freeze: got %v want %v", bot.updateTypes, original)
+				}
+			},
+		},
+		{
+			name: "AddUpdateType",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := append([]tgapi.UpdateType(nil), bot.updateTypes...)
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.AddUpdateType(tgapi.UpdateTypePoll)
+				if !reflect.DeepEqual(bot.updateTypes, original) {
+					t.Fatalf("AddUpdateType mutated after configuration freeze: got %v want %v", bot.updateTypes, original)
+				}
+			},
+		},
+		{
+			name: "SetPayloadType",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetPayloadType(BotPayloadJson)
+				if bot.payloadType != BotPayloadBase64 {
+					t.Fatalf("payloadType mutated after configuration freeze: got %q want %q", bot.payloadType, BotPayloadBase64)
+				}
+			},
+		},
+		{
+			name: "SetStrictPayloadType",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetStrictPayloadType(true)
+				if bot.strictPayloadType {
+					t.Fatal("strictPayloadType mutated after configuration freeze")
+				}
+			},
+		},
+		{
+			name: "AddPrefixes",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := append([]string(nil), bot.prefixes...)
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.AddPrefixes("!")
+				if !reflect.DeepEqual(bot.prefixes, original) {
+					t.Fatalf("prefixes mutated after configuration freeze: got %v want %v", bot.prefixes, original)
+				}
+			},
+		},
+		{
+			name: "ErrorTemplate",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetErrorTemplate("changed")
+				if bot.errorTemplate != "%s" {
+					t.Fatalf("errorTemplate mutated after configuration freeze: got %q want %q", bot.errorTemplate, "%s")
+				}
+			},
+		},
+		{
+			name: "SetDraftProvider",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := bot.draftProvider
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetDraftProvider(&DraftProvider{})
+				if bot.draftProvider != original {
+					t.Fatal("draftProvider mutated after configuration freeze")
+				}
+			},
+		},
+		{
+			name: "SetSessionStore",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := bot.sessionStore
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetSessionStore(NewMemorySessionStore())
+				if bot.sessionStore != original {
+					t.Fatal("sessionStore mutated after configuration freeze")
+				}
+			},
+		},
+		{
+			name: "SetSceneScopePriority",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := append([]SceneScope(nil), bot.sceneScopePriority...)
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetSceneScopePriority([]SceneScope{SceneScopeUser})
+				if !reflect.DeepEqual(bot.sceneScopePriority, original) {
+					t.Fatalf("sceneScopePriority mutated after configuration freeze: got %v want %v", bot.sceneScopePriority, original)
+				}
+			},
+		},
+		{
+			name: "AddL10n",
+			check: func(t *testing.T, bot *Bot[*testDB]) {
+				original := bot.l10n
+				if err := bot.beginRun(); err != nil {
+					t.Fatalf("beginRun returned error: %v", err)
+				}
+				t.Cleanup(bot.finishRun)
+
+				bot.SetL10n(&L10n{})
+				if bot.l10n != original {
+					t.Fatal("l10n mutated after configuration freeze")
+				}
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			tt.check(t, makeBot())
+		})
+	}
+}
+
+func TestAddPluginsAndRuntimeRegistrationsNoOpAfterRunStarts(t *testing.T) {
+	bot := &Bot[NoData]{
+		logger:      slog.CreateLogger(),
+		prefixes:    []string{"/"},
+		middlewares: []Middleware[NoData]{NewMiddleware("base", func(ctx *MsgContext, db NoData) bool { return true })},
+		runners:     []Runner[NoData]{NewRunner("base", func(bot *Bot[NoData]) error { return nil })},
+	}
+	plugin := NewPlugin[NoData]("late")
+
+	if err := bot.beginRun(); err != nil {
+		t.Fatalf("beginRun returned error: %v", err)
+	}
+	defer bot.finishRun()
+
+	bot.AddPlugins(plugin)
+	bot.AddMiddleware(NewMiddleware("late", func(ctx *MsgContext, db NoData) bool { return true }))
+	bot.AddRunner(NewRunner("late", func(bot *Bot[NoData]) error { return nil }))
+
+	if len(bot.plugins) != 0 {
+		t.Fatalf("expected AddPlugins to be ignored after configuration freeze, got %d plugins", len(bot.plugins))
+	}
+	if len(bot.middlewares) != 1 {
+		t.Fatalf("expected AddMiddleware to be ignored after configuration freeze, got %d middlewares", len(bot.middlewares))
+	}
+	if len(bot.runners) != 1 {
+		t.Fatalf("expected AddRunner to be ignored after configuration freeze, got %d runners", len(bot.runners))
+	}
+}

bot_utils.go

@@ -0,0 +1,178 @@
+package laniakea
+
+import (
+	"context"
+	"fmt"
+	"maps"
+	"reflect"
+	"strings"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/extypes"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/slog"
+	"github.com/alitto/pond/v2"
+)
+
+func (bot *Bot[T]) enqueueUpdate(ctx context.Context, update tgapi.Update) error {
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	case bot.updateQueue <- new(update):
+		return nil
+	}
+}
+
+func (bot *Bot[T]) startUpdateWorkers(ctx context.Context) {
+	pool := pond.NewPool(bot.maxWorkers)
+	for update := range bot.updateQueue {
+		u := update // capture loop variable
+		pool.Submit(func() {
+			bot.handle(ctx, u)
+		})
+	}
+	pool.Stop() // Wait for all tasks to complete and stop the pool
+}
+
+func (bot *Bot[T]) initLoggers(opts *BotOpts) {
+	level := slog.FATAL
+	if opts.Debug {
+		level = slog.DEBUG
+	}
+
+	bot.logger = utils.CreateLogger("BOT", level)
+	if opts.WriteToFile {
+		path := fmt.Sprintf("%s/main.log", strings.TrimRight(opts.LoggerBasePath, "/"))
+		logger, err := utils.CreateFileLogger("BOT", level, path)
+		if err != nil {
+			bot.logger.Errorln(err)
+		} else {
+			bot.logger = logger
+		}
+	}
+
+	if opts.UseRequestLogger {
+		bot.RequestLogger = utils.CreateLogger("REQUESTS", level)
+		if opts.WriteToFile {
+			path := fmt.Sprintf("%s/requests.log", strings.TrimRight(opts.LoggerBasePath, "/"))
+			logger, err := utils.CreateFileLogger("REQUESTS", level, path)
+			if err != nil {
+				bot.logger.Errorln(err)
+			} else {
+				bot.RequestLogger = logger
+			}
+		}
+	}
+}
+
+func (bot *Bot[T]) beginRun() error {
+	bot.runStateMu.Lock()
+	defer bot.runStateMu.Unlock()
+	if bot.running || bot.ran {
+		return ErrBotAlreadyRun
+	}
+	bot.running = true
+	bot.ran = true
+	return nil
+}
+
+func (bot *Bot[T]) finishRun() {
+	bot.runStateMu.Lock()
+	bot.running = false
+	bot.runStateMu.Unlock()
+}
+
+func nextPollRetryDelay(prev time.Duration) time.Duration {
+	if prev <= 0 {
+		return time.Second
+	}
+	next := prev * 2
+	if next > 30*time.Second {
+		return 30 * time.Second
+	}
+	return next
+}
+
+func isNilValue[T any](v T) bool {
+	rv := reflect.ValueOf(v)
+	if !rv.IsValid() {
+		return true
+	}
+	switch rv.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Pointer, reflect.Slice:
+		return rv.IsNil()
+	default:
+		return false
+	}
+}
+
+func shouldWarnOnValueAppData[T any]() bool {
+	t := reflect.TypeFor[T]()
+	if t == reflect.TypeFor[NoData]() {
+		return false
+	}
+	switch t.Kind() {
+	case reflect.Pointer, reflect.Interface, reflect.Map, reflect.Slice, reflect.Func, reflect.Chan:
+		return false
+	default:
+		return true
+	}
+}
+
+func clonePlugin[T AppData](p *Plugin[T]) Plugin[T] {
+	cloned := Plugin[T]{
+		name:        p.name,
+		commands:    make(map[string]*Command[T], len(p.commands)),
+		payloads:    make(map[string]*Command[T], len(p.payloads)),
+		scenes:      make(map[string]*Scene[T], len(p.scenes)),
+		middlewares: append(extypes.Slice[Middleware[T]](nil), p.middlewares...),
+		skipAutoCmd: p.skipAutoCmd,
+		logger:      p.logger,
+		handlers:    make(map[tgapi.UpdateType]CommandExecutor[T]),
+		onClose:     p.onClose,
+	}
+
+	for name, command := range p.commands {
+		cloned.commands[name] = cloneCommand(command)
+	}
+	for name, command := range p.payloads {
+		cloned.payloads[name] = cloneCommand(command)
+	}
+	for name, scene := range p.scenes {
+		cloned.scenes[name] = cloneScene(scene)
+	}
+	maps.Copy(cloned.handlers, p.handlers)
+
+	return cloned
+}
+
+func cloneCommand[T AppData](command *Command[T]) *Command[T] {
+	if command == nil {
+		return nil
+	}
+
+	cloned := *command
+	cloned.args = append(extypes.Slice[CommandArg](nil), command.args...)
+	cloned.middlewares = append(extypes.Slice[Middleware[T]](nil), command.middlewares...)
+	return &cloned
+}
+
+func cloneScene[T AppData](scene *Scene[T]) *Scene[T] {
+	if scene == nil {
+		return nil
+	}
+
+	cloned := *scene
+	cloned.steps = make(map[string]SceneHandler[T], len(scene.steps))
+	cloned.commands = make(map[string]SceneHandler[T], len(scene.commands))
+
+	for name, handler := range scene.steps {
+		cloned.steps[name] = handler
+	}
+	for name, handler := range scene.commands {
+		cloned.commands[name] = handler
+	}
+
+	return &cloned
+}

bot_webhook.go

@@ -0,0 +1,461 @@
+package laniakea
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+)
+
+// BotWebHookOpts configures Telegram webhook registration and the local HTTP server.
+type BotWebHookOpts struct {
+	Path          string
+	LocalPort     int
+	UseStatusPath bool
+
+	URL                string
+	Certificate        []byte
+	IPAddress          string
+	MaxConnections     int8
+	AllowedUpdates     []tgapi.UpdateType
+	DropPendingUpdates bool
+	SecretToken        string
+}
+
+// NewBotWebHookOpts returns webhook options with the default path, local port, and max connections.
+func NewBotWebHookOpts() *BotWebHookOpts {
+	return &BotWebHookOpts{
+		Path:           "/",
+		LocalPort:      8080,
+		MaxConnections: 40,
+	}
+}
+
+// SetPath sets the local HTTP path that receives Telegram webhook requests.
+func (opts *BotWebHookOpts) SetPath(path string) *BotWebHookOpts {
+	opts.Path = path
+	return opts
+}
+
+// SetLocalPort sets the local HTTP port used by the webhook server.
+func (opts *BotWebHookOpts) SetLocalPort(port int) *BotWebHookOpts {
+	opts.LocalPort = port
+	return opts
+}
+
+// SetUseStatusPath enables or disables the optional /status endpoint.
+// A non-empty SecretToken is required when this endpoint is enabled.
+func (opts *BotWebHookOpts) SetUseStatusPath(use bool) *BotWebHookOpts {
+	opts.UseStatusPath = use
+	return opts
+}
+
+// SetURL sets the public base URL Telegram should call for incoming updates.
+func (opts *BotWebHookOpts) SetURL(url string) *BotWebHookOpts {
+	opts.URL = url
+	return opts
+}
+
+// SetCertificate sets the self-signed webhook certificate bytes to upload.
+func (opts *BotWebHookOpts) SetCertificate(certificate []byte) *BotWebHookOpts {
+	opts.Certificate = certificate
+	return opts
+}
+
+// MustLoadCertificate loads a webhook certificate from disk and panics on failure.
+func (opts *BotWebHookOpts) MustLoadCertificate(filename string) *BotWebHookOpts {
+	f, err := os.Open(filename)
+	if err != nil {
+		panic(err)
+	}
+	defer func() {
+		_ = f.Close()
+	}()
+	opts.Certificate, err = io.ReadAll(f)
+	if err != nil {
+		panic(err)
+	}
+	return opts
+}
+
+// SetIPAddress sets the fixed IP address Telegram should use for webhook delivery.
+func (opts *BotWebHookOpts) SetIPAddress(ip string) *BotWebHookOpts {
+	opts.IPAddress = ip
+	return opts
+}
+
+// SetMaxConnections sets Telegram's maximum number of simultaneous webhook connections.
+func (opts *BotWebHookOpts) SetMaxConnections(max int8) *BotWebHookOpts {
+	opts.MaxConnections = max
+	return opts
+}
+
+// SetAllowedUpdates sets the Telegram update types that should be delivered to the webhook.
+func (opts *BotWebHookOpts) SetAllowedUpdates(updates ...tgapi.UpdateType) *BotWebHookOpts {
+	opts.AllowedUpdates = append([]tgapi.UpdateType(nil), updates...)
+	return opts
+}
+
+// SetDropPendingUpdates configures whether Telegram should drop pending updates while setting the webhook.
+func (opts *BotWebHookOpts) SetDropPendingUpdates(drop bool) *BotWebHookOpts {
+	opts.DropPendingUpdates = drop
+	return opts
+}
+
+// SetSecretToken sets the secret token expected in Telegram webhook requests.
+// The same token is also required to access /status when that endpoint is enabled.
+func (opts *BotWebHookOpts) SetSecretToken(secretToken string) *BotWebHookOpts {
+	opts.SecretToken = secretToken
+	return opts
+}
+
+// RunWebHookWithContext registers the webhook and serves incoming updates until ctx is canceled.
+//
+// The bot uses the same update queue, worker pool, runner startup, and single-use lifecycle
+// guarantees as RunWithContext. When opts.AllowedUpdates is empty, the bot-level update types
+// configured through SetUpdateTypes/AddUpdateType are used. When UseStatusPath is enabled,
+// SecretToken must be non-empty so the operational endpoint is not left public.
+//
+// When two TLS files are provided, the method serves HTTPS using the existing key-then-cert
+// argument order.
+func (bot *Bot[T]) RunWebHookWithContext(ctx context.Context, opts *BotWebHookOpts, tlsFiles ...string) error {
+	if opts == nil {
+		return errors.New("nil BotWebHookOpts")
+	}
+	if len(bot.prefixes) == 0 {
+		return ErrNoPrefixes
+	}
+	if len(bot.plugins) == 0 {
+		return ErrNoPlugins
+	}
+	if opts.URL == "" {
+		return errors.New("empty BotWebHookOpts.URL")
+	}
+	if opts.MaxConnections > 100 || opts.MaxConnections <= 0 {
+		return errors.New("BotWebHookOpts.MaxConnections must between 1 and 100")
+	}
+	if err := validateWebhookPath(opts.Path, opts.UseStatusPath); err != nil {
+		return err
+	}
+	if opts.UseStatusPath && opts.SecretToken == "" {
+		return errors.New("BotWebHookOpts.SecretToken required when status path is enabled")
+	}
+	if err := validateWebhookTLSFiles(tlsFiles); err != nil {
+		return err
+	}
+
+	bot.webHookLogger = utils.CreateLogger("WEBHOOK", bot.GetLoggerLevel())
+	if opts.SecretToken == "" {
+		bot.webHookLogger.Warnln("Bot webhook secret token empty. It's VERY recommended to set secret.")
+	}
+
+	if opts.Certificate != nil && bot.uploader == nil {
+		return errors.New("bot uploader nil, but certificate set")
+	}
+
+	return bot.runWebhookRuntime(ctx, func(runCtx context.Context) error {
+		i, err := bot.api.GetWebhookInfoWithContext(runCtx)
+		if err != nil {
+			return err
+		}
+		if i.URL == "" {
+			bot.webHookLogger.Warnln("API returned webhook info with empty URL. There may be a long-poll")
+		} else {
+			_, err = bot.api.DeleteWebhookWithContext(runCtx, tgapi.DeleteWebhook{})
+			if err != nil {
+				return err
+			}
+			bot.webHookLogger.Infof("Bot webhook deleted: %s", i.URL)
+		}
+
+		allowedUpdates := bot.webhookAllowedUpdates(opts)
+
+		var ok bool
+		if opts.Certificate != nil {
+			ok, err = bot.uploader.SetWebhookWithContext(runCtx, tgapi.UploadSetWebhook{
+				URL:                fmt.Sprintf("%s%s", opts.URL, opts.Path),
+				IPAddress:          opts.IPAddress,
+				MaxConnections:     opts.MaxConnections,
+				AllowedUpdates:     allowedUpdates,
+				DropPendingUpdates: opts.DropPendingUpdates,
+				SecretToken:        opts.SecretToken,
+			}, tgapi.NewUploaderFile("certificate", opts.Certificate))
+		} else {
+			ok, err = bot.api.SetWebhookWithContext(runCtx, tgapi.SetWebhook{
+				URL:                fmt.Sprintf("%s%s", opts.URL, opts.Path),
+				IPAddress:          opts.IPAddress,
+				MaxConnections:     opts.MaxConnections,
+				AllowedUpdates:     allowedUpdates,
+				DropPendingUpdates: opts.DropPendingUpdates,
+				SecretToken:        opts.SecretToken,
+			})
+		}
+		if err != nil {
+			return err
+		}
+		if !ok {
+			return errors.New("failed to set webhook")
+		}
+
+		if len(tlsFiles) == 2 {
+			return bot.runWebHookTLS(runCtx, opts, tlsFiles[0], tlsFiles[1])
+		}
+
+		return bot.runWebHook(runCtx, opts)
+	})
+}
+
+// RunWebHook starts the webhook runtime with a background context.
+//
+// It is shorthand for RunWebHookWithContext(context.Background(), opts, tlsFiles...).
+func (bot *Bot[T]) RunWebHook(opts *BotWebHookOpts, tlsFiles ...string) error {
+	return bot.RunWebHookWithContext(context.Background(), opts, tlsFiles...)
+}
+
+// CloseWebHook removes the current Telegram webhook registration.
+//
+// It is separate from Close, which only releases local resources.
+// Call it before switching a deployment from webhook delivery to polling.
+func (bot *Bot[T]) CloseWebHook() error {
+	var e []error
+	if bot.api == nil {
+		e = append(e, errors.New("bot api nil"))
+	} else {
+		if _, err := bot.api.DeleteWebhook(tgapi.DeleteWebhook{}); err != nil {
+			if bot.webHookLogger != nil {
+				bot.webHookLogger.Errorf("Failed to close webhook: %s", err.Error())
+			} else if bot.logger != nil {
+				bot.logger.Errorf("Failed to close webhook: %s", err.Error())
+			}
+			e = append(e, err)
+		}
+	}
+	if bot.webHookLogger != nil {
+		if err := bot.webHookLogger.Close(); err != nil {
+			e = append(e, err)
+		}
+		bot.webHookLogger = nil
+	}
+	return errors.Join(e...)
+}
+
+func (bot *Bot[T]) webhookAllowedUpdates(opts *BotWebHookOpts) []tgapi.UpdateType {
+	if len(opts.AllowedUpdates) > 0 {
+		return append([]tgapi.UpdateType(nil), opts.AllowedUpdates...)
+	}
+	return bot.GetUpdateTypes()
+}
+
+func (bot *Bot[T]) runWebhookRuntime(ctx context.Context, run func(context.Context) error) error {
+	if err := bot.beginRun(); err != nil {
+		return err
+	}
+	defer bot.finishRun()
+
+	runCtx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	bot.ExecRunners(runCtx)
+
+	workersDone := make(chan struct{})
+	go func() {
+		bot.startUpdateWorkers(runCtx)
+		close(workersDone)
+	}()
+
+	runErr := run(runCtx)
+	cancel()
+	close(bot.updateQueue)
+	<-workersDone
+	bot.runnerOnceWG.Wait()
+	bot.runnerBgWG.Wait()
+
+	return runErr
+}
+
+func updateHandler[T any](ctx context.Context, bot *Bot[T], secret string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer func() {
+			_ = r.Body.Close()
+		}()
+		if r.Method != http.MethodPost {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			return
+		}
+		if secret != "" && r.Header.Get("X-Telegram-Bot-Api-Secret-Token") != secret {
+			w.WriteHeader(http.StatusForbidden)
+			return
+		}
+
+		const maxWebhookBodySize = 256 << 10 // 256 KiB
+		r.Body = http.MaxBytesReader(w, r.Body, maxWebhookBodySize)
+
+		data, err := io.ReadAll(r.Body)
+		if err != nil {
+			if _, ok := errors.AsType[*http.MaxBytesError](err); ok {
+				w.WriteHeader(http.StatusRequestEntityTooLarge)
+				return
+			}
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if len(data) == 0 {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		var up tgapi.Update
+		if err := json.Unmarshal(data, &up); err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			bot.webHookLogger.Errorln(err)
+			return
+		}
+		bot.webHookLogger.Debugf("UPDATE id=%d type=%s size=%d from=%s", up.UpdateID, up.Type, len(data), r.RemoteAddr)
+		if err := bot.enqueueUpdate(ctx, up); err != nil {
+			bot.webHookLogger.Errorln(err)
+			w.WriteHeader(http.StatusServiceUnavailable)
+			return
+		}
+		w.WriteHeader(http.StatusOK)
+	}
+}
+
+func statusHandler[T any](bot *Bot[T], opts *BotWebHookOpts) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		auth := ""
+		if r.Header.Get("Authorization") != "" {
+			auth = r.Header.Get("Authorization")
+		} else if r.Header.Get("X-Telegram-Bot-Api-Secret-Token") != "" {
+			auth = r.Header.Get("X-Telegram-Bot-Api-Secret-Token")
+		}
+		if auth != opts.SecretToken {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+
+		i, err := bot.api.GetWebhookInfoWithContext(r.Context())
+		if err != nil {
+			bot.webHookLogger.Errorln(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		data, err := json.MarshalIndent(i, "", "  ")
+		if err != nil {
+			bot.webHookLogger.Errorln(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		if _, err := fmt.Fprint(w, string(data)); err != nil {
+			bot.webHookLogger.Errorln(err)
+		}
+	}
+}
+
+func (bot *Bot[T]) newWebHookMux(ctx context.Context, opts *BotWebHookOpts) *http.ServeMux {
+	r := http.NewServeMux()
+	if opts.UseStatusPath {
+		r.HandleFunc("/status", statusHandler[T](bot, opts))
+	}
+	r.HandleFunc(opts.Path, updateHandler[T](ctx, bot, opts.SecretToken))
+	return r
+}
+func (bot *Bot[T]) runWebHook(ctx context.Context, opts *BotWebHookOpts) error {
+	srv := &http.Server{
+		Addr:    fmt.Sprintf(":%d", opts.LocalPort),
+		Handler: bot.newWebHookMux(ctx, opts),
+	}
+	errCh := make(chan error, 1)
+
+	go func() {
+		err := srv.ListenAndServe()
+		if err != nil && !errors.Is(err, http.ErrServerClosed) {
+			errCh <- err
+			return
+		}
+		errCh <- nil
+	}()
+
+	bot.webHookLogger.Infoln(fmt.Sprintf("Bot WebHook started at %s; waiting for updates at %s", srv.Addr, opts.URL))
+
+	select {
+	case <-ctx.Done():
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		if err := srv.Shutdown(shutdownCtx); err != nil {
+			return err
+		}
+
+		return <-errCh
+
+	case err := <-errCh:
+		return err
+	}
+}
+func (bot *Bot[T]) runWebHookTLS(ctx context.Context, opts *BotWebHookOpts, key, cert string) error {
+	srv := &http.Server{
+		Addr:    fmt.Sprintf(":%d", opts.LocalPort),
+		Handler: bot.newWebHookMux(ctx, opts),
+	}
+	errCh := make(chan error, 1)
+
+	go func() {
+		err := srv.ListenAndServeTLS(cert, key)
+		if err != nil && !errors.Is(err, http.ErrServerClosed) {
+			errCh <- err
+			return
+		}
+		errCh <- nil
+	}()
+
+	bot.webHookLogger.Infoln(fmt.Sprintf("Bot webhook started with TLS(%s, %s) at %s; waiting for updates at %s", key, cert, srv.Addr, opts.URL))
+
+	select {
+	case <-ctx.Done():
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		if err := srv.Shutdown(shutdownCtx); err != nil {
+			return err
+		}
+
+		return <-errCh
+
+	case err := <-errCh:
+		return err
+	}
+}
+func validateWebhookPath(path string, useStatusPath bool) error {
+	if path == "" {
+		return errors.New("empty BotWebHookOpts.Path")
+	}
+	if !strings.HasPrefix(path, "/") {
+		return errors.New("BotWebHookOpts.Path must start with '/'")
+	}
+	if strings.Contains(path, "?") || strings.Contains(path, "#") {
+		return errors.New("BotWebHookOpts.Path must not contain query or fragment")
+	}
+	if useStatusPath && path == "/status" {
+		return errors.New("BotWebHookOpts.Path must not be '/status' when status path is enabled")
+	}
+	return nil
+}
+
+func validateWebhookTLSFiles(tlsFiles []string) error {
+	switch len(tlsFiles) {
+	case 0, 2:
+		return nil
+	case 1:
+		return errors.New("you must specify both private and public keys")
+	default:
+		return errors.New("too many files; you must specify only private and public keys")
+	}
+}

bot_webhook_test.go

@@ -0,0 +1,293 @@
+package laniakea
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync/atomic"
+	"testing"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+func TestEnqueueUpdateCopiesValue(t *testing.T) {
+	bot := &Bot[NoData]{
+		updateQueue: make(chan *tgapi.Update, 1),
+	}
+
+	update := tgapi.Update{UpdateID: 42}
+	if err := bot.enqueueUpdate(context.Background(), update); err != nil {
+		t.Fatalf("enqueueUpdate returned error: %v", err)
+	}
+
+	update.UpdateID = 99
+
+	got := <-bot.updateQueue
+	if got.UpdateID != 42 {
+		t.Fatalf("enqueueUpdate did not copy the update value: got %d want %d", got.UpdateID, 42)
+	}
+}
+
+func TestUpdateHandlerEnqueuesUpdate(t *testing.T) {
+	bot := &Bot[NoData]{
+		updateQueue:   make(chan *tgapi.Update, 1),
+		webHookLogger: slog.CreateLogger(),
+	}
+	t.Cleanup(func() {
+		_ = bot.webHookLogger.Close()
+	})
+
+	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(`{"update_id":7,"message":{"message_id":1,"date":1,"chat":{"id":1,"type":"private"},"text":"/start"}}`))
+	req.Header.Set("X-Telegram-Bot-Api-Secret-Token", "secret")
+	rec := httptest.NewRecorder()
+
+	updateHandler(context.Background(), bot, "secret").ServeHTTP(rec, req)
+
+	if rec.Result().StatusCode != http.StatusOK {
+		t.Fatalf("unexpected status: got %d want %d", rec.Result().StatusCode, http.StatusOK)
+	}
+
+	select {
+	case got := <-bot.updateQueue:
+		if got.UpdateID != 7 {
+			t.Fatalf("unexpected update id in queue: got %d want %d", got.UpdateID, 7)
+		}
+		if got.Type != tgapi.UpdateTypeMessage {
+			t.Fatalf("unexpected update type in queue: got %q want %q", got.Type, tgapi.UpdateTypeMessage)
+		}
+	default:
+		t.Fatal("expected webhook handler to enqueue an update")
+	}
+}
+
+func TestRunWebhookRuntimeRejectsSecondRun(t *testing.T) {
+	bot := &Bot[NoData]{
+		logger:      slog.CreateLogger(),
+		updateQueue: make(chan *tgapi.Update, 1),
+		maxWorkers:  1,
+	}
+	t.Cleanup(func() {
+		_ = bot.logger.Close()
+	})
+
+	if err := bot.runWebhookRuntime(context.Background(), func(context.Context) error { return nil }); err != nil {
+		t.Fatalf("first runWebhookRuntime returned error: %v", err)
+	}
+	if err := bot.runWebhookRuntime(context.Background(), func(context.Context) error { return nil }); !errors.Is(err, ErrBotAlreadyRun) {
+		t.Fatalf("expected ErrBotAlreadyRun on second run, got %v", err)
+	}
+}
+
+func TestRunWebhookRuntimeExecutesRunners(t *testing.T) {
+	var calls atomic.Int32
+
+	bot := &Bot[NoData]{
+		logger:      slog.CreateLogger(),
+		updateQueue: make(chan *tgapi.Update, 1),
+		maxWorkers:  1,
+		runners: []Runner[NoData]{
+			NewRunner("runner", func(bot *Bot[NoData]) error {
+				calls.Add(1)
+				return nil
+			}).Onetime(true).Async(false),
+		},
+	}
+	t.Cleanup(func() {
+		_ = bot.logger.Close()
+	})
+
+	if err := bot.runWebhookRuntime(context.Background(), func(context.Context) error { return nil }); err != nil {
+		t.Fatalf("runWebhookRuntime returned error: %v", err)
+	}
+	if got := calls.Load(); got != 1 {
+		t.Fatalf("expected runner to execute once, got %d", got)
+	}
+}
+
+func TestWebhookAllowedUpdatesUsesBotUpdateTypesByDefault(t *testing.T) {
+	bot := &Bot[NoData]{
+		updateTypes: []tgapi.UpdateType{tgapi.UpdateTypeMessage, tgapi.UpdateTypeCallbackQuery},
+	}
+	opts := NewBotWebHookOpts()
+
+	got := bot.webhookAllowedUpdates(opts)
+	if len(got) != 2 {
+		t.Fatalf("unexpected allowed updates length: got %d want %d", len(got), 2)
+	}
+	if got[0] != tgapi.UpdateTypeMessage || got[1] != tgapi.UpdateTypeCallbackQuery {
+		t.Fatalf("unexpected allowed updates: %v", got)
+	}
+
+	got[0] = tgapi.UpdateTypePoll
+	if bot.updateTypes[0] != tgapi.UpdateTypeMessage {
+		t.Fatalf("webhookAllowedUpdates exposed internal slice: got %v", bot.updateTypes)
+	}
+}
+
+func TestValidateWebhookPath(t *testing.T) {
+	tests := []struct {
+		name          string
+		path          string
+		useStatusPath bool
+		wantErr       bool
+	}{
+		{name: "root", path: "/", wantErr: false},
+		{name: "custom path", path: "/telegram", wantErr: false},
+		{name: "empty", path: "", wantErr: true},
+		{name: "missing slash", path: "telegram", wantErr: true},
+		{name: "query", path: "/telegram?x=1", wantErr: true},
+		{name: "fragment", path: "/telegram#main", wantErr: true},
+		{name: "status collision", path: "/status", useStatusPath: true, wantErr: true},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			err := validateWebhookPath(tc.path, tc.useStatusPath)
+			if tc.wantErr && err == nil {
+				t.Fatal("expected error, got nil")
+			}
+			if !tc.wantErr && err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
+func TestValidateWebhookTLSFiles(t *testing.T) {
+	tests := []struct {
+		name    string
+		files   []string
+		wantErr bool
+	}{
+		{name: "no tls", files: nil, wantErr: false},
+		{name: "two files", files: []string{"key.pem", "cert.pem"}, wantErr: false},
+		{name: "one file", files: []string{"cert.pem"}, wantErr: true},
+		{name: "three files", files: []string{"a", "b", "c"}, wantErr: true},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			err := validateWebhookTLSFiles(tc.files)
+			if tc.wantErr && err == nil {
+				t.Fatal("expected error, got nil")
+			}
+			if !tc.wantErr && err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
+func TestUpdateHandlerRejectsOversizedBody(t *testing.T) {
+	bot := &Bot[NoData]{
+		updateQueue:   make(chan *tgapi.Update, 1),
+		webHookLogger: slog.CreateLogger(),
+	}
+	t.Cleanup(func() {
+		_ = bot.webHookLogger.Close()
+	})
+
+	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(strings.Repeat("a", (256<<10)+1)))
+	rec := httptest.NewRecorder()
+
+	updateHandler(context.Background(), bot, "").ServeHTTP(rec, req)
+
+	if rec.Result().StatusCode != http.StatusRequestEntityTooLarge {
+		t.Fatalf("unexpected status: got %d want %d", rec.Result().StatusCode, http.StatusRequestEntityTooLarge)
+	}
+}
+
+func TestStatusHandlerRequiresMatchingSecret(t *testing.T) {
+	client := &http.Client{
+		Transport: pollingRoundTripFunc(func(req *http.Request) (*http.Response, error) {
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":{"url":"https://bot.example.com/telegram"}}`)),
+			}, nil
+		}),
+	}
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("http://example.invalid").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		_ = api.Close()
+	}()
+
+	bot := &Bot[NoData]{
+		api:           api,
+		webHookLogger: slog.CreateLogger(),
+	}
+	t.Cleanup(func() {
+		_ = bot.webHookLogger.Close()
+	})
+
+	handler := statusHandler(bot, &BotWebHookOpts{SecretToken: "secret"})
+
+	tests := []struct {
+		name       string
+		headerName string
+		headerVal  string
+		wantStatus int
+	}{
+		{name: "missing auth", wantStatus: http.StatusNotFound},
+		{name: "wrong auth", headerName: "Authorization", headerVal: "wrong", wantStatus: http.StatusNotFound},
+		{name: "matching telegram header", headerName: "X-Telegram-Bot-Api-Secret-Token", headerVal: "secret", wantStatus: http.StatusOK},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(http.MethodGet, "/status", nil)
+			if tc.headerName != "" {
+				req.Header.Set(tc.headerName, tc.headerVal)
+			}
+			rec := httptest.NewRecorder()
+
+			handler.ServeHTTP(rec, req)
+
+			if rec.Result().StatusCode != tc.wantStatus {
+				t.Fatalf("unexpected status: got %d want %d", rec.Result().StatusCode, tc.wantStatus)
+			}
+		})
+	}
+}
+
+func TestRunWebHookWithContextRejectsInvalidTLSFilesBeforeRemoteSetup(t *testing.T) {
+	bot := &Bot[NoData]{
+		prefixes: []string{"/"},
+		plugins:  []Plugin[NoData]{{name: "demo"}},
+	}
+	opts := NewBotWebHookOpts().SetURL("https://bot.example.com")
+
+	err := bot.RunWebHookWithContext(context.Background(), opts, "cert.pem")
+	if err == nil {
+		t.Fatal("expected tls validation error, got nil")
+	}
+	if !strings.Contains(err.Error(), "both private and public keys") {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestRunWebHookWithContextRequiresSecretWhenStatusPathEnabled(t *testing.T) {
+	bot := &Bot[NoData]{
+		prefixes: []string{"/"},
+		plugins:  []Plugin[NoData]{{name: "demo"}},
+	}
+	opts := NewBotWebHookOpts().
+		SetURL("https://bot.example.com").
+		SetUseStatusPath(true)
+
+	err := bot.RunWebHookWithContext(context.Background(), opts)
+	if err == nil {
+		t.Fatal("expected status-path secret validation error, got nil")
+	}
+	if !strings.Contains(err.Error(), "SecretToken required") {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}

cmd_generator.go

@@ -4,13 +4,14 @@ import (
 	"errors"
 	"fmt"
 	"regexp"
+	"sort"
 	"strings"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
 // CmdRegexp matches command names allowed for Telegram command registration.
-var CmdRegexp = regexp.MustCompile("^[a-zA-Z0-9]+$")
+var CmdRegexp = regexp.MustCompile("^[_a-z0-9]{1,32}$")
 
 // ErrTooManyCommands is returned when the total number of registered commands
 // exceeds Telegram's limit of 100 bot commands per bot.
@@ -20,7 +21,7 @@ var CmdRegexp = regexp.MustCompile("^[a-zA-Z0-9]+$")
 // bot initialization.
 var ErrTooManyCommands = errors.New("too many commands. max 100")
 
-// generateBotCommand builds a BotCommand description with generated usage text.
+// Internal helper to build a BotCommand description with generated usage text.
 func generateBotCommand[T any](cmd *Command[T]) tgapi.BotCommand {
 	desc := ""
 	if len(cmd.description) > 0 {
@@ -44,13 +45,20 @@ func generateBotCommand[T any](cmd *Command[T]) tgapi.BotCommand {
 	return tgapi.BotCommand{Command: cmd.command, Description: usage}
 }
 
-// checkCmdRegex reports whether cmd matches CmdRegexp.
+// Internal helper to validate Telegram command names.
 func checkCmdRegex(cmd string) bool { return CmdRegexp.MatchString(cmd) }
 
-// gatherCommandsForPlugin collects non-skipped, valid commands from one plugin.
+// Internal helper to collect non-skipped, valid commands from one plugin.
 func gatherCommandsForPlugin[T any](pl Plugin[T]) []tgapi.BotCommand {
 	commands := make([]tgapi.BotCommand, 0)
-	for _, cmd := range pl.commands {
+	names := make([]string, 0, len(pl.commands))
+	for name := range pl.commands {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+
+	for _, name := range names {
+		cmd := pl.commands[name]
 		if cmd.skipAutoCmd {
 			continue
 		}
@@ -62,9 +70,7 @@ func gatherCommandsForPlugin[T any](pl Plugin[T]) []tgapi.BotCommand {
 	return commands
 }
 
-// gatherCommands collects all commands from all plugins
-// and converts them into tgapi.BotCommand objects.
-// See gatherCommandsForPlugin.
+// Internal helper to collect all auto-generated commands from registered plugins.
 func gatherCommands[T any](bot *Bot[T]) []tgapi.BotCommand {
 	commands := make([]tgapi.BotCommand, 0)
 	for _, pl := range bot.plugins {
@@ -106,7 +112,7 @@ func (bot *Bot[T]) AutoGenerateCommands() error {
 	}
 
 	// Clear existing commands to avoid duplication or stale entries
-	_, err := bot.api.DeleteMyCommands(tgapi.DeleteMyCommandsP{})
+	_, err := bot.api.DeleteMyCommands(tgapi.DeleteMyCommands{})
 	if err != nil {
 		return fmt.Errorf("failed to delete existing commands: %w", err)
 	}
@@ -119,7 +125,7 @@ func (bot *Bot[T]) AutoGenerateCommands() error {
 	}
 
 	for _, scope := range scopes {
-		_, err = bot.api.SetMyCommands(tgapi.SetMyCommandsP{
+		_, err = bot.api.SetMyCommands(tgapi.SetMyCommands{
 			Commands: commands,
 			Scope:    scope,
 		})
@@ -153,12 +159,12 @@ func (bot *Bot[T]) AutoGenerateCommandsForScope(scope *tgapi.BotCommandScope) er
 		return ErrTooManyCommands
 	}
 
-	_, err := bot.api.DeleteMyCommands(tgapi.DeleteMyCommandsP{Scope: scope})
+	_, err := bot.api.DeleteMyCommands(tgapi.DeleteMyCommands{Scope: scope})
 	if err != nil {
 		return fmt.Errorf("failed to delete existing commands: %w", err)
 	}
 
-	_, err = bot.api.SetMyCommands(tgapi.SetMyCommandsP{
+	_, err = bot.api.SetMyCommands(tgapi.SetMyCommands{
 		Commands: commands,
 		Scope:    scope,
 	})

cmd_generator_test.go

@@ -4,13 +4,14 @@ import (
 	"errors"
 	"io"
 	"net/http"
+	"reflect"
 	"strconv"
 	"strings"
 	"sync/atomic"
 	"testing"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 type roundTripFunc func(*http.Request) (*http.Response, error)
@@ -42,16 +43,16 @@ func TestAutoGenerateCommandsChecksLimitBeforeDelete(t *testing.T) {
 		}
 	}()
 
-	plugin := NewPlugin[NoDB]("overflow")
-	exec := func(ctx *MsgContext, db *NoDB) {}
+	plugin := NewPlugin[NoData]("overflow")
+	exec := func(ctx *MsgContext, db NoData) error { return nil }
 	for i := 0; i < 101; i++ {
 		plugin.AddCommand(NewCommand(exec, "cmd"+strconv.Itoa(i)))
 	}
 
-	bot := &Bot[NoDB]{
+	bot := &Bot[NoData]{
 		api:     api,
 		logger:  slog.CreateLogger(),
-		plugins: []Plugin[NoDB]{*plugin},
+		plugins: []Plugin[NoData]{*plugin},
 	}
 
 	err := bot.AutoGenerateCommands()
@@ -62,3 +63,23 @@ func TestAutoGenerateCommandsChecksLimitBeforeDelete(t *testing.T) {
 		t.Fatalf("expected no HTTP calls before limit validation, got %d", calls.Load())
 	}
 }
+
+func TestGatherCommandsForPluginReturnsSortedCommands(t *testing.T) {
+	plugin := NewPlugin[NoData]("sorted")
+	exec := func(ctx *MsgContext, db NoData) error { return nil }
+
+	plugin.AddCommand(NewCommand(exec, "zeta"))
+	plugin.AddCommand(NewCommand(exec, "alpha"))
+	plugin.AddCommand(NewCommand(exec, "mid"))
+
+	commands := gatherCommandsForPlugin(*plugin)
+	got := make([]string, 0, len(commands))
+	for _, cmd := range commands {
+		got = append(got, cmd.Command)
+	}
+
+	want := []string{"alpha", "mid", "zeta"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("unexpected command order: got %v want %v", got, want)
+	}
+}

doc.go

@@ -1,55 +1,33 @@
 /*
 Package laniakea provides a modular, extensible framework for building scalable Telegram bots.
 
-It offers a fluent API for configuration and separates concerns through several core concepts:
+Core concepts:
 
-  - Bot: The central instance managing API communication, update processing, logging,
-    rate limiting, and dependency injection. Created via NewBot[T].
-
-  - Plugins: Organize commands and payloads into reusable units.
-    A plugin can have multiple commands and shared middlewares.
-
-  - Commands: Named bot commands with descriptions, argument validation, and
-    execution logic. Automatically registrable across different chat scopes.
-
-  - Middleware: Functions that intercept and modify updates before they reach plugins.
-    Useful for authentication, logging, validation, etc. Return false to stop processing.
-
-  - MsgContext: Provides access to the incoming update and convenient methods for
-    responding, editing, deleting, and translating messages. Includes built-in rate limiting
-    and error handling. ⚠️ MarkdownV2 methods require manual escaping via EscapeMarkdownV2().
-
-  - InlineKeyboard: A fluent builder for constructing inline keyboards with styled buttons,
-    icons, URLs, and structured callback data (JSON or Base64).
-
-  - DraftProvider: Manages ephemeral, multi-step message drafts with automatic ID generation
-    (random or linear). Drafts can be built incrementally and flushed atomically.
-
-  - L10n: Simple key-based localization system with fallback language support.
-
-  - Runners: Background goroutines for periodic tasks or one‑off initialization,
-    with configurable timeouts and async execution.
-
-  - RateLimiting & Logging: Built‑in rate limiter (respects Telegram's retry_after)
-    and structured logging (JSON stdout + optional file output) with request‑level tracing.
-
-  - Dependency Injection: Pass any custom database context (e.g., *sql.DB) to all handlers
-    via the type parameter T in Bot[T].
+  - Bot manages Telegram API access, update processing, logging, rate limiting, and dependency injection.
+  - Plugins group commands, payloads, and non-command update handlers behind shared middleware.
+  - MsgContext provides access to the current update and reply/edit/delete helpers.
+  - InlineKeyboard builds callback-driven keyboards and structured payloads.
+  - DraftProvider accumulates multi-step replies before sending them.
+  - L10n stores key-based translations with fallback behavior.
+  - Runners execute startup or background tasks alongside the polling loop.
 
 Example usage:
 
-	bot := laniakea.NewBot[mydb.DBContext](laniakea.LoadOptsFromEnv()).
-	    DatabaseContext(&myDB).
+	bot, err := laniakea.NewBot[*mydb.AppData](laniakea.LoadOptsFromEnv())
+	if err != nil {
+	    return err
+	}
+	bot.SetAppData(myDB).
 	    AddUpdateType(tgapi.UpdateTypeMessage).
 	    AddPrefixes("/", "!").
 	    AddPlugins(&startPlugin, &helpPlugin).
-	    AddMiddleware(&authMiddleware, &logMiddleware).
-	    AddRunner(&cleanupRunner).
-	    AddL10n(l10n.New())
+	    AddMiddleware(authMiddleware, logMiddleware).
+	    AddRunner(cleanupRunner).
+	    SetL10n(l10n.New())
 
-	bot.Run()
+	return bot.Run()
 
-All public methods are safe for concurrent use unless stated otherwise.
-Direct field access is not recommended; use provided accessors (e.g., GetDBContext, SetUpdateOffset).
+Configure bots, plugins, and localization before starting Run, RunWithContext, or RunWebHookWithContext.
+Runtime accessors are safe for concurrent use unless stated otherwise.
 */
 package laniakea

drafts.go

@@ -1,18 +1,14 @@
 package laniakea
 
 import (
-	"errors"
 	"math/rand/v2"
 	"sync"
 	"sync/atomic"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
-// ErrDraftChatIDZero is returned when a draft is used without setting a chat ID.
-var ErrDraftChatIDZero = errors.New("zero draft chat ID")
-
-// draftIdGenerator defines an interface for generating unique draft IDs.
+// Interface for generating unique draft IDs.
 type draftIdGenerator interface {
 	// Next returns the next unique draft ID.
 	Next() uint64
@@ -38,12 +34,9 @@ func (g *LinearDraftIdGenerator) Next() uint64 {
 	return g.lastId.Add(1)
 }
 
-// DraftProvider manages a collection of Drafts and provides methods to create and
-// configure them. It holds shared configuration (chat, parse mode, entities) and
-// a draft ID generator.
+// DraftProvider manages a collection of Drafts and a shared draft ID generator.
 //
-// DraftProvider is NOT thread-safe. Concurrent access from multiple goroutines
-// requires external synchronization.
+// DraftProvider is safe for concurrent use.
 type DraftProvider struct {
 	mu        sync.RWMutex
 	api       *tgapi.API
@@ -133,10 +126,7 @@ type Draft struct {
 
 // NewDraft creates a new draft with the provided parse mode.
 //
-// The draft inherits the provider's chatID, messageThreadID, and entities.
-// If parseMode is zero, the provider's default parseMode is used.
-//
-// Panics if chatID is zero — call SetChat() on the provider first.
+// The caller must set a chat with SetChat before Push or Flush.
 func (p *DraftProvider) NewDraft(parseMode tgapi.ParseMode) *Draft {
 	id := p.generator.Next()
 	draft := &Draft{
@@ -224,8 +214,14 @@ func (d *Draft) Flush() error {
 	if d.Message == "" {
 		return nil
 	}
+	if d.chatID == 0 {
+		return ErrDraftChatIDZero
+	}
+	if err := validateMessageText(d.Message); err != nil {
+		return err
+	}
 
-	params := tgapi.SendMessageP{
+	params := tgapi.SendMessage{
 		ChatID:    d.chatID,
 		ParseMode: d.parseMode,
 		Entities:  d.entities,
@@ -242,13 +238,16 @@ func (d *Draft) Flush() error {
 	return err
 }
 
-// push is the internal helper for Push(). It updates the server draft via SendMessageDraft.
+// Internal helper for Push that updates the server-side draft.
 func (d *Draft) push(text string) error {
 	if d.chatID == 0 {
 		return ErrDraftChatIDZero
 	}
 	d.Message += text
-	params := tgapi.SendMessageDraftP{
+	if err := validateMessageText(d.Message); err != nil {
+		return err
+	}
+	params := tgapi.SendMessageDraft{
 		ChatID:    d.chatID,
 		DraftID:   d.ID,
 		Text:      d.Message,

drafts_test.go

@@ -0,0 +1,55 @@
+package laniakea
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+func TestDraftFlushRequiresChatID(t *testing.T) {
+	draft := NewRandomDraftProvider(&tgapi.API{}).NewDraft(tgapi.ParseNone)
+	draft.Message = "hello"
+
+	if err := draft.Flush(); err != ErrDraftChatIDZero {
+		t.Fatalf("expected ErrDraftChatIDZero, got %v", err)
+	}
+}
+
+func TestMsgContextNewDraftWorksWithoutLimiter(t *testing.T) {
+	ctx := &MsgContext{
+		Api: &tgapi.API{},
+		Msg: &tgapi.Message{
+			Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate},
+		},
+		Logger:        slog.CreateLogger(),
+		draftProvider: NewRandomDraftProvider(&tgapi.API{}),
+	}
+
+	draft := ctx.NewDraft()
+	if draft == nil {
+		t.Fatal("expected draft")
+	}
+	if draft.chatID != 42 {
+		t.Fatalf("unexpected chat id: %d", draft.chatID)
+	}
+}
+
+func TestDraftFlushRejectsLongMessage(t *testing.T) {
+	draft := NewRandomDraftProvider(&tgapi.API{}).NewDraft(tgapi.ParseNone).SetChat(42, 0)
+	draft.Message = strings.Repeat("a", maxMessageTextLen+1)
+
+	if err := draft.Flush(); !errors.Is(err, ErrMessageTooLong) {
+		t.Fatalf("expected ErrMessageTooLong, got %v", err)
+	}
+}
+
+func TestDraftPushRejectsLongMessage(t *testing.T) {
+	draft := NewRandomDraftProvider(&tgapi.API{}).NewDraft(tgapi.ParseNone).SetChat(42, 0)
+
+	if err := draft.Push(strings.Repeat("a", maxMessageTextLen+1)); !errors.Is(err, ErrMessageTooLong) {
+		t.Fatalf("expected ErrMessageTooLong, got %v", err)
+	}
+}

error_model.go

@@ -0,0 +1,59 @@
+package laniakea
+
+import "errors"
+
+type classifiedError struct {
+	err          error
+	userVisible  bool
+	internalOnly bool
+}
+
+func (e *classifiedError) Error() string {
+	if e == nil || e.err == nil {
+		return ""
+	}
+	return e.err.Error()
+}
+
+func (e *classifiedError) Unwrap() error {
+	if e == nil {
+		return nil
+	}
+	return e.err
+}
+
+// AsUserError marks err as safe to show to the user through the centralized
+// handler error flow.
+func AsUserError(err error) error {
+	if err == nil {
+		return nil
+	}
+	return &classifiedError{err: err, userVisible: true}
+}
+
+// AsInternalError marks err as internal-only so it will be logged but not sent
+// to the user through the centralized handler error flow.
+func AsInternalError(err error) error {
+	if err == nil {
+		return nil
+	}
+	return &classifiedError{err: err, internalOnly: true}
+}
+
+// IsUserError reports whether err was explicitly marked as user-visible.
+func IsUserError(err error) bool {
+	var classified *classifiedError
+	if !errors.As(err, &classified) {
+		return false
+	}
+	return classified.userVisible
+}
+
+// IsInternalError reports whether err was explicitly marked as internal-only.
+func IsInternalError(err error) bool {
+	var classified *classifiedError
+	if !errors.As(err, &classified) {
+		return false
+	}
+	return classified.internalOnly
+}

errors.go

@@ -0,0 +1,81 @@
+package laniakea
+
+import (
+	"errors"
+	"fmt"
+	"unicode/utf8"
+)
+
+const (
+	maxMessageTextLen    = 4096
+	maxMessageCaptionLen = 1024
+)
+
+var (
+	// ErrEmptyMessage reports that a required message text is empty.
+	ErrEmptyMessage = errors.New("empty message")
+	// ErrMessageTooLong reports that a message exceeds Telegram's text limit.
+	ErrMessageTooLong = errors.New("message too long")
+	// ErrCaptionTooLong reports that a caption exceeds Telegram's caption limit.
+	ErrCaptionTooLong = errors.New("caption too long")
+	// ErrMessageSplitImpossible reports that automatic message splitting cannot preserve semantics.
+	ErrMessageSplitImpossible = errors.New("message split is impossible")
+	// ErrPayloadTypeMismatch reports that callback payload encoding does not match bot policy.
+	ErrPayloadTypeMismatch = errors.New("payload type mismatch")
+	// ErrDraftChatIDZero reports that a draft has no target chat ID.
+	ErrDraftChatIDZero = errors.New("zero draft chat ID")
+	// ErrMessageNil reports that a required message value is nil.
+	ErrMessageNil = errors.New("message is nil")
+	// ErrMessageContextNil reports that an operation requires ctx.Msg but none is set.
+	ErrMessageContextNil = errors.New("message context is nil")
+	// ErrEditTargetMissing reports that an edit operation has no message target.
+	ErrEditTargetMissing = errors.New("edit target is missing")
+	// ErrCallbackMessageMissing reports that a callback operation has no callback message target.
+	ErrCallbackMessageMissing = errors.New("callback message is missing")
+	// ErrDraftProviderNil reports that draft creation was requested without a draft provider.
+	ErrDraftProviderNil = errors.New("draft provider is nil")
+	// ErrAPIIsNil reports that an operation requires an API client but none is set.
+	ErrAPIIsNil = errors.New("api is nil")
+	// ErrMessageIDZero reports that an operation requires a non-zero message ID.
+	ErrMessageIDZero = errors.New("message ID is zero")
+	// ErrBindArgsTargetNotPointer reports that BindArgs received a nil or non-pointer destination.
+	ErrBindArgsTargetNotPointer = errors.New("bind args: dst must be a non-nil pointer")
+	// ErrBindArgsTargetNotStruct reports that BindArgs received a pointer to a non-struct value.
+	ErrBindArgsTargetNotStruct = errors.New("bind args: dst must point to a struct")
+	// ErrBindArgsUnsupportedFieldType reports that BindArgs encountered an unsupported field kind.
+	ErrBindArgsUnsupportedFieldType = errors.New("bind args: unsupported field type")
+	// ErrBindArgsConversion reports that BindArgs could not convert a string argument into a field type.
+	ErrBindArgsConversion = errors.New("bind args: conversion failed")
+	// ErrCantFindSession reports that no scene session matches the current context.
+	ErrCantFindSession = errors.New("can't find session for this context")
+	// ErrSceneNotFound reports that the requested scene is not registered.
+	ErrSceneNotFound = errors.New("scene not found")
+	// ErrSceneStepNotFound reports that the requested scene step is not registered.
+	ErrSceneStepNotFound = errors.New("scene step not found")
+	// ErrNotInScene reports that the current context has no active scene session.
+	ErrNotInScene = errors.New("not in scene")
+	// ErrSceneEntryNotSet reports that a scene has no configured entry step.
+	ErrSceneEntryNotSet = errors.New("scene entry step not set")
+	// ErrSceneRuntimeNil reports that scene APIs were used without an attached runtime.
+	ErrSceneRuntimeNil = errors.New("scene runtime is nil")
+)
+
+func validateMessageText(text string) error {
+	length := utf8.RuneCountInString(text)
+	switch {
+	case length == 0:
+		return ErrEmptyMessage
+	case length > maxMessageTextLen:
+		return fmt.Errorf("%w: got %d, limit %d", ErrMessageTooLong, length, maxMessageTextLen)
+	default:
+		return nil
+	}
+}
+
+func validateCaptionText(text string) error {
+	length := utf8.RuneCountInString(text)
+	if length > maxMessageCaptionLen {
+		return fmt.Errorf("%w: got %d, limit %d", ErrCaptionTooLong, length, maxMessageCaptionLen)
+	}
+	return nil
+}

go.mod

@@ -1,12 +1,12 @@
-module git.nix13.pw/scuroneko/laniakea
+module git.scuroneko.dev/scuroneko/laniakea
 
 go 1.26
 
 retract v1.0.0-rc.5
 
 require (
-	git.nix13.pw/scuroneko/extypes v1.2.2
-	git.nix13.pw/scuroneko/slog v1.1.2
+	git.scuroneko.dev/scuroneko/extypes v1.2.3
+	git.scuroneko.dev/scuroneko/slog v1.1.3
 	github.com/alitto/pond/v2 v2.7.0
 	golang.org/x/time v0.15.0
 )

go.sum

@@ -1,7 +1,7 @@
-git.nix13.pw/scuroneko/extypes v1.2.2 h1:N54c1ejrPs1yfIkvYuwqI7B1+8S9mDv2GqQA6sct4dk=
-git.nix13.pw/scuroneko/extypes v1.2.2/go.mod h1:b4XYk1OW1dVSiE2MT/OMuX/K/UItf1swytX6eroVYnk=
-git.nix13.pw/scuroneko/slog v1.1.2 h1:pl7tV5FN25Yso7sLYoOgBXi9+jLo5BDJHWmHlNPjpY0=
-git.nix13.pw/scuroneko/slog v1.1.2/go.mod h1:UcfRIHDqpVQHahBGM93awLDK8//AsAvOqBwwbWqMkjM=
+git.scuroneko.dev/scuroneko/extypes v1.2.3 h1:n7QsfTZEn9fJNZLXGH/LkNq4cADaRk+LTu6LNMv9y6s=
+git.scuroneko.dev/scuroneko/extypes v1.2.3/go.mod h1:MhYpXC6sloLOpoM2guf64eSOrz+ET/QJZ8toobc3Ors=
+git.scuroneko.dev/scuroneko/slog v1.1.3 h1:vI4GZykn8gDb6OJ2xq+KLcEk38M7O4e/z1kzpeRHEHw=
+git.scuroneko.dev/scuroneko/slog v1.1.3/go.mod h1:gnDap54sfZv3EuSyZd7fjOH46aLbDFpvtN2wgFcWkgE=
 github.com/alitto/pond/v2 v2.7.0 h1:c76L+yN916m/DRXjGCeUBHHu92uWnh/g1bwVk4zyyXg=
 github.com/alitto/pond/v2 v2.7.0/go.mod h1:xkjYEgQ05RSpWdfSd1nM3OVv7TBhLdy7rMp3+2Nq+yE=
 github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=

handler.go

@@ -1,160 +1,116 @@
 package laniakea
 
 import (
+	"context"
 	"encoding/base64"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"strings"
+	"time"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
 // ErrInvalidPayloadType is returned when callback payload encoding type is unknown.
 var ErrInvalidPayloadType = errors.New("invalid payload type")
 
-func (bot *Bot[T]) handle(u *tgapi.Update) {
+func (bot *Bot[T]) handle(parentCtx context.Context, u *tgapi.Update) {
 	defer func() {
 		if r := recover(); r != nil {
 			bot.logger.Errorln(fmt.Sprintf("panic in handle: %v", r))
 		}
 	}()
+	startTime := time.Now()
 
-	ctx := &MsgContext{
+	ctx, cancel := context.WithCancel(parentCtx)
+	defer cancel()
+
+	msgCtx := &MsgContext{
 		Update: *u, Api: bot.api,
-		botLogger:     bot.logger,
+		Logger:        bot.logger,
 		errorTemplate: bot.errorTemplate,
 		l10n:          bot.l10n,
 		draftProvider: bot.draftProvider,
+		sceneRuntime:  bot,
+		observer:      bot.observer,
 		payloadType:   bot.payloadType,
+		ctx:           ctx,
 	}
+	bot.prepareUpdateCtx(u, msgCtx)
+	bot.safeEmitEvent(ctx, UpdateReceivedEvent{
+		UpdateID:   u.UpdateID,
+		UpdateType: u.Type,
+		FromID:     msgCtx.FromID,
+		ChatID:     msgCtx.ChatID,
+	})
+
 	for _, middleware := range bot.middlewares {
-		if !middleware.Execute(ctx, bot.dbContext) {
+		if !middleware.Execute(msgCtx, bot.appData) {
 			return
 		}
 	}
 
-	if u.CallbackQuery != nil {
-		bot.handleCallback(u, ctx)
-	} else {
-		bot.handleMessage(u, ctx)
-	}
-}
-
-func (bot *Bot[T]) handleMessage(update *tgapi.Update, ctx *MsgContext) {
-	if update.Message == nil {
-		return
-	}
-	if update.Message.From == nil {
-		return
-	}
-
-	var text string
-	if len(update.Message.Text) > 0 {
-		text = update.Message.Text
-	} else {
-		text = update.Message.Caption
-	}
-
-	text = strings.TrimSpace(text)
-	prefix, hasPrefix := bot.checkPrefixes(text)
-	if !hasPrefix {
-		return
-	}
-	ctx.Prefix = prefix
-	ctx.FromID = update.Message.From.ID
-	ctx.From = update.Message.From
-	ctx.Msg = update.Message
-
-	// Убираем префикс
-	text = strings.TrimSpace(text[len(prefix):])
-
-	// Извлекаем команду как первое слово
-	spaceIndex := strings.Index(text, " ")
-	var cmd string
-	var args string
-
-	if spaceIndex == -1 {
-		cmd = text
-		args = ""
-	} else {
-		cmd = text[:spaceIndex]
-		args = strings.TrimSpace(text[spaceIndex:])
-	}
-
-	if strings.Contains(cmd, "@") {
-		botUsername := bot.username
-		if botUsername != "" && strings.HasSuffix(cmd, "@"+botUsername) {
-			cmd = cmd[:len(cmd)-len("@"+botUsername)] // убираем @botname
-		}
-	}
-
-	// Ищем команду по точному совпадению
-	for _, plugin := range bot.plugins {
-		if _, exists := plugin.commands[cmd]; exists {
-			ctx.Text = args
-			ctx.Args = strings.Fields(args) // Убирает лишние пробелы
-			if !plugin.executeMiddlewares(ctx, bot.dbContext) {
-				return
-			}
-
-			ctx.Logger = plugin.logger
-			if ctx.Logger == nil {
-				ctx.Logger = ctx.botLogger
-			}
-			plugin.executeCmd(cmd, ctx, bot.dbContext)
-			return
-		}
-	}
-}
-
-func (bot *Bot[T]) handleCallback(update *tgapi.Update, ctx *MsgContext) {
-	data, err := bot.decodePayload(update.CallbackQuery.Data)
+	sceneHandled, err := bot.tryHandleScene(msgCtx)
 	if err != nil {
 		bot.logger.Errorln(err)
+		bot.safeEmitEvent(ctx, UpdateHandledEvent{
+			UpdateID:   u.UpdateID,
+			UpdateType: u.Type,
+			FromID:     msgCtx.FromID,
+			ChatID:     msgCtx.ChatID,
+			Duration:   time.Since(startTime),
+			Handled:    false,
+		})
+		bot.safeEmitEvent(ctx, ErrorEvent{
+			UpdateID:    u.UpdateID,
+			UpdateType:  u.Type,
+			Plugin:      "bot",
+			HandlerKind: HandlerSceneKind,
+			HandlerName: "tryHandleScene",
+			FromID:      msgCtx.FromID,
+			ChatID:      msgCtx.ChatID,
+			Err:         err,
+			UserFacing:  false,
+		})
+		return
+	}
+	if sceneHandled {
+		bot.safeEmitEvent(ctx, UpdateHandledEvent{
+			UpdateID:   u.UpdateID,
+			UpdateType: u.Type,
+			FromID:     msgCtx.FromID,
+			ChatID:     msgCtx.ChatID,
+			Duration:   time.Since(startTime),
+			Handled:    true,
+		})
 		return
 	}
 
-	ctx.FromID = update.CallbackQuery.From.ID
-	ctx.From = &update.CallbackQuery.From
-	if update.CallbackQuery.Message != nil {
-		ctx.Msg = update.CallbackQuery.Message
-		ctx.CallbackMsgId = update.CallbackQuery.Message.MessageID
-	}
-	if update.CallbackQuery.InlineMessageID != nil {
-		ctx.InlineMsgId = *update.CallbackQuery.InlineMessageID
-	}
-	ctx.CallbackQueryId = update.CallbackQuery.ID
-	ctx.Args = data.Args
-
-	for _, plugin := range bot.plugins {
-		_, ok := plugin.payloads[data.Command]
-		if !ok {
-			continue
-		}
-
-		if !plugin.executeMiddlewares(ctx, bot.dbContext) {
-			return
-		}
-		ctx.Logger = plugin.logger
-		if ctx.Logger == nil {
-			ctx.Logger = ctx.botLogger
-		}
-		plugin.executePayload(data.Command, ctx, bot.dbContext)
-		return
+	handled := false
+	switch u.Type {
+	case tgapi.UpdateTypeMessage, tgapi.UpdateTypeChannelPost:
+		handled = bot.handleMessage(u, msgCtx)
+	case tgapi.UpdateTypeCallbackQuery:
+		handled = bot.handleCallback(u, msgCtx)
+	default:
+		handled = bot.handleUpdate(u, msgCtx)
 	}
+	bot.safeEmitEvent(ctx, UpdateHandledEvent{
+		UpdateID:   u.UpdateID,
+		UpdateType: u.Type,
+		FromID:     msgCtx.FromID,
+		ChatID:     msgCtx.ChatID,
+		Duration:   time.Since(startTime),
+		Handled:    handled,
+	})
 }
 
-func (bot *Bot[T]) checkPrefixes(text string) (string, bool) {
-	for _, prefix := range bot.prefixes {
-		if prefix == "" {
-			continue
-		}
-		if strings.HasPrefix(text, prefix) {
-			return prefix, true
-		}
+func cloneMsgContext(src *MsgContext) *MsgContext {
+	cloned := *src
+	if src.Args != nil {
+		cloned.Args = append([]string(nil), src.Args...)
 	}
-	return "", false
+	return &cloned
 }
 
 func encodeJsonPayload(d CallbackData) (string, error) {
@@ -164,11 +120,13 @@ func encodeJsonPayload(d CallbackData) (string, error) {
 	}
 	return string(b), nil
 }
+
 func decodeJsonPayload(s string) (CallbackData, error) {
 	var data CallbackData
 	err := json.Unmarshal([]byte(s), &data)
 	return data, err
 }
+
 func encodeBase64Payload(d CallbackData) (string, error) {
 	data, err := encodeJsonPayload(d)
 	if err != nil {
@@ -179,15 +137,6 @@ func encodeBase64Payload(d CallbackData) (string, error) {
 	return string(dst), nil
 }
 
-//	func encodePayload(payloadType BotPayloadType, d CallbackData) (string, error) {
-//		switch payloadType {
-//		case BotPayloadBase64:
-//			return encodeBase64Payload(d)
-//		case BotPayloadJson:
-//			return encodeJsonPayload(d)
-//		}
-//		return "", ErrInvalidPayloadType
-//	}
 func decodeBase64Payload(s string) (CallbackData, error) {
 	b, err := base64.RawURLEncoding.DecodeString(s)
 	if err != nil {
@@ -195,19 +144,46 @@ func decodeBase64Payload(s string) (CallbackData, error) {
 	}
 	return decodeJsonPayload(string(b))
 }
-func decodePayload(payloadType BotPayloadType, s string) (CallbackData, error) {
+
+func decodePayload(payloadType BotPayloadType, s string, strict bool) (CallbackData, BotPayloadType, error) {
 	switch payloadType {
 	case BotPayloadBase64:
-		return decodeBase64Payload(s)
+		data, err := decodeBase64Payload(s)
+		if err == nil {
+			return data, BotPayloadBase64, nil
+		}
+		if strict {
+			return CallbackData{}, "", fmt.Errorf("%w: expected %s", ErrPayloadTypeMismatch, BotPayloadBase64)
+		}
+		data, err = decodeJsonPayload(s)
+		if err != nil {
+			return CallbackData{}, "", err
+		}
+		return data, BotPayloadJson, nil
 	case BotPayloadJson:
-		return decodeJsonPayload(s)
+		data, err := decodeJsonPayload(s)
+		if err == nil {
+			return data, BotPayloadJson, nil
+		}
+		if strict {
+			return CallbackData{}, "", fmt.Errorf("%w: expected %s", ErrPayloadTypeMismatch, BotPayloadJson)
+		}
+		data, err = decodeBase64Payload(s)
+		if err != nil {
+			return CallbackData{}, "", err
+		}
+		return data, BotPayloadBase64, nil
 	}
-	return CallbackData{}, ErrInvalidPayloadType
+	return CallbackData{}, "", ErrInvalidPayloadType
 }
 
-//	func (bot *Bot[T]) encodePayload(d CallbackData) (string, error) {
-//		return encodePayload(bot.payloadType, d)
-//	}
 func (bot *Bot[T]) decodePayload(s string) (CallbackData, error) {
-	return decodePayload(bot.payloadType, s)
+	data, decodedType, err := decodePayload(bot.payloadType, s, bot.strictPayloadType)
+	if err != nil {
+		return CallbackData{}, err
+	}
+	if decodedType == BotPayloadBase64 && bot.debug && bot.logger != nil {
+		bot.logger.Debugf("decoded callback payload base64->json: raw=%q json=%s", s, data.ToJson())
+	}
+	return data, nil
 }

keyboard.go

@@ -3,17 +3,16 @@ package laniakea
 import (
 	"fmt"
 
-	"git.nix13.pw/scuroneko/extypes"
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/extypes"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
-// ButtonStyleDanger, ButtonStyleSuccess, ButtonStylePrimary are predefined
-// Telegram keyboard button styles for visual feedback.
-//
-// These values map directly to Telegram Bot API's InlineKeyboardButton style field.
 const (
-	ButtonStyleDanger  tgapi.KeyboardButtonStyle = "danger"
+	// ButtonStyleDanger marks a destructive inline keyboard action.
+	ButtonStyleDanger tgapi.KeyboardButtonStyle = "danger"
+	// ButtonStyleSuccess marks a confirmatory inline keyboard action.
 	ButtonStyleSuccess tgapi.KeyboardButtonStyle = "success"
+	// ButtonStylePrimary marks a primary inline keyboard action.
 	ButtonStylePrimary tgapi.KeyboardButtonStyle = "primary"
 )
 
@@ -83,8 +82,7 @@ func (b InlineKbButtonBuilder) SetCallbackDataBase64(cmd string, args ...any) In
 	return b
 }
 
-// build converts the builder state into a tgapi.InlineKeyboardButton.
-// This method is typically called internally by InlineKeyboard.AddButton().
+// Internal helper that converts the builder state into a Telegram button.
 func (b InlineKbButtonBuilder) build() tgapi.InlineKeyboardButton {
 	return tgapi.InlineKeyboardButton{
 		Text:              b.text,
@@ -138,16 +136,25 @@ func NewInlineKeyboard(payloadType BotPayloadType, maxRow int) *InlineKeyboard {
 	}
 }
 
-// SetPayloadType sets the serialization format for callback data added via
+// SetPayloadType sets the keyboard-local serialization format for callback data added via
 // AddCallbackButton and AddCallbackButtonStyle methods.
-// It should be one of BotPayloadJson or BotPayloadBase64.
+// It overrides the bot's default payload type for this keyboard only.
 func (in *InlineKeyboard) SetPayloadType(t BotPayloadType) *InlineKeyboard {
 	in.payloadType = t
 	return in
 }
 
-// append adds a button to the current line. If the line is full, it auto-flushes.
-// This is an internal helper used by other builder methods.
+// GetPayloadType returns the keyboard-local callback payload encoding type.
+func (in *InlineKeyboard) GetPayloadType() BotPayloadType { return in.payloadType }
+
+// SetMaxRow sets the maximum number of buttons appended to a row before the
+// keyboard automatically starts a new line.
+func (in *InlineKeyboard) SetMaxRow(maxRow int) *InlineKeyboard {
+	in.maxRow = maxRow
+	return in
+}
+
+// Internal helper that appends a button and auto-flushes a full row.
 func (in *InlineKeyboard) append(button tgapi.InlineKeyboardButton) *InlineKeyboard {
 	if in.CurrentLine.Len() == in.maxRow {
 		in.AddLine()
@@ -235,12 +242,12 @@ type CallbackData struct {
 // (int, string, bool, float64) but may not serialize complex structs meaningfully.
 //
 // Use this to build callback payloads for bot command routing.
-func NewCallbackData(command string, args ...any) *CallbackData {
+func NewCallbackData(command string, args ...any) CallbackData {
 	stringArgs := make([]string, len(args))
 	for i, arg := range args {
 		stringArgs[i] = fmt.Sprint(arg)
 	}
-	return &CallbackData{
+	return CallbackData{
 		Command: command,
 		Args:    stringArgs,
 	}
@@ -253,8 +260,8 @@ func NewCallbackData(command string, args ...any) *CallbackData {
 //
 // This fallback ensures the bot receives a valid JSON payload even if internal
 // errors occur — avoiding "invalid callback_data" errors from Telegram.
-func (d *CallbackData) ToJson() string {
-	data, err := encodeJsonPayload(*d)
+func (d CallbackData) ToJson() string {
+	data, err := encodeJsonPayload(d)
 	if err != nil {
 		// Fallback: return minimal valid JSON to avoid Telegram API rejection
 		return `{"cmd":""}`
@@ -264,8 +271,8 @@ func (d *CallbackData) ToJson() string {
 
 // ToBase64 serializes the CallbackData to a JSON string and then encodes it as Base64.
 // Returns an empty string if serialization or encoding fails.
-func (d *CallbackData) ToBase64() string {
-	s, err := encodeBase64Payload(*d)
+func (d CallbackData) ToBase64() string {
+	s, err := encodeBase64Payload(d)
 	if err != nil {
 		return ``
 	}
@@ -275,7 +282,7 @@ func (d *CallbackData) ToBase64() string {
 // Encode serializes the CallbackData according to the specified payload type.
 // Supported types: BotPayloadJson and BotPayloadBase64.
 // For unknown types, returns an empty string.
-func (d *CallbackData) Encode(t BotPayloadType) string {
+func (d CallbackData) Encode(t BotPayloadType) string {
 	switch t {
 	case BotPayloadBase64:
 		return d.ToBase64()

keyboard_test.go

@@ -0,0 +1,97 @@
+package laniakea
+
+import (
+	"errors"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestInlineKeyboardWrapsRowsAndEncodesJSONPayloads(t *testing.T) {
+	kb := NewInlineKeyboardJson(2).
+		AddCallbackButton("A", "cmd", 1).
+		AddCallbackButton("B", "cmd", 2).
+		AddCallbackButton("C", "cmd", 3)
+
+	markup := kb.Get()
+	if got := len(markup.InlineKeyboard); got != 2 {
+		t.Fatalf("unexpected row count: %d", got)
+	}
+	if got := len(markup.InlineKeyboard[0]); got != 2 {
+		t.Fatalf("unexpected first row size: %d", got)
+	}
+	if got := len(markup.InlineKeyboard[1]); got != 1 {
+		t.Fatalf("unexpected second row size: %d", got)
+	}
+	if !strings.Contains(markup.InlineKeyboard[0][0].CallbackData, `"cmd":"cmd"`) {
+		t.Fatalf("expected JSON callback payload, got %q", markup.InlineKeyboard[0][0].CallbackData)
+	}
+}
+
+func TestInlineKeyboardBuilderPreservesConfiguredButtonFields(t *testing.T) {
+	kb := NewInlineKeyboardBase64(3).
+		AddButton(
+			NewInlineKbButton("Docs").
+				SetStyle(ButtonStylePrimary).
+				SetUrl("https://example.test"),
+		)
+
+	button := kb.Get().InlineKeyboard[0][0]
+	if button.Style != ButtonStylePrimary {
+		t.Fatalf("unexpected style: %q", button.Style)
+	}
+	if button.URL != "https://example.test" {
+		t.Fatalf("unexpected url: %q", button.URL)
+	}
+}
+
+func TestInlineKeyboardGetPayloadTypeReturnsLocalOverride(t *testing.T) {
+	kb := NewInlineKeyboardJson(2)
+	if got := kb.GetPayloadType(); got != BotPayloadJson {
+		t.Fatalf("unexpected initial payload type: %q", got)
+	}
+	kb.SetPayloadType(BotPayloadBase64)
+	if got := kb.GetPayloadType(); got != BotPayloadBase64 {
+		t.Fatalf("unexpected updated payload type: %q", got)
+	}
+}
+
+func TestDecodePayloadAcceptsBase64KeyboardPayloadWhenBotPrefersJSON(t *testing.T) {
+	kb := NewInlineKeyboardBase64(1).
+		AddCallbackButton("A", "cmd", 1, "two")
+
+	got, _, err := decodePayload(BotPayloadJson, kb.Get().InlineKeyboard[0][0].CallbackData, false)
+	if err != nil {
+		t.Fatalf("decodePayload returned error: %v", err)
+	}
+
+	want := CallbackData{Command: "cmd", Args: []string{"1", "two"}}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("unexpected payload: got %#v want %#v", got, want)
+	}
+}
+
+func TestDecodePayloadAcceptsJSONKeyboardPayloadWhenBotPrefersBase64(t *testing.T) {
+	kb := NewInlineKeyboardJson(1).
+		AddCallbackButton("A", "cmd", 1, "two")
+
+	got, _, err := decodePayload(BotPayloadBase64, kb.Get().InlineKeyboard[0][0].CallbackData, false)
+	if err != nil {
+		t.Fatalf("decodePayload returned error: %v", err)
+	}
+
+	want := CallbackData{Command: "cmd", Args: []string{"1", "two"}}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("unexpected payload: got %#v want %#v", got, want)
+	}
+}
+
+func TestDecodePayloadStrictRejectsMismatchedType(t *testing.T) {
+	kb := NewInlineKeyboardBase64(1).
+		AddCallbackButton("A", "cmd", 1)
+
+	_, _, err := decodePayload(BotPayloadJson, kb.Get().InlineKeyboard[0][0].CallbackData, true)
+	if !errors.Is(err, ErrPayloadTypeMismatch) {
+		t.Fatalf("expected ErrPayloadTypeMismatch, got %v", err)
+	}
+}

l10n.go

@@ -1,21 +1,18 @@
 package laniakea
 
-// DictEntry represents a single localized entry with language-to-text mappings.
-// Example: {"ru": "Привет", "en": "Hello"}.
+import "sync"
+
+// DictEntry maps language codes to translated strings.
 type DictEntry map[string]string
 
-// L10n is a localization manager that maps keys to language-specific strings.
+// L10n stores translations with a configurable fallback language and is safe for concurrent use.
 type L10n struct {
-	entries      map[string]DictEntry // Map of translation keys to language dictionaries
-	fallbackLang string               // Language code to use when requested language is missing
+	mu           sync.RWMutex
+	entries      map[string]DictEntry
+	fallbackLang string
 }
 
-// NewL10n creates a new L10n instance with the specified fallback language.
-// The fallback language is used when a requested language is not available
-// for a given key.
-//
-// Example: NewL10n("en") will return "Hello" for key "greeting" if "ru" is requested
-// but no "ru" entry exists.
+// NewL10n creates a localization store with the given fallback language.
 func NewL10n(fallbackLanguage string) *L10n {
 	return &L10n{
 		entries:      make(map[string]DictEntry),
@@ -23,54 +20,52 @@ func NewL10n(fallbackLanguage string) *L10n {
 	}
 }
 
-// AddDictEntry adds a new translation entry for the given key.
-// The value must be a DictEntry mapping language codes (e.g., "en", "ru") to their translated strings.
-//
-// If a key already exists, it is overwritten.
-//
-// Returns the L10n instance for method chaining.
+// AddDictEntry stores translations for key.
 func (l *L10n) AddDictEntry(key string, value DictEntry) *L10n {
-	l.entries[key] = value
+	l.mu.Lock()
+	defer l.mu.Unlock()
+	if l.entries == nil {
+		l.entries = make(map[string]DictEntry)
+	}
+	l.entries[key] = cloneDictEntry(value)
 	return l
 }
 
 // GetFallbackLanguage returns the currently configured fallback language code.
 func (l *L10n) GetFallbackLanguage() string {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
 	return l.fallbackLang
 }
 
-// Translate retrieves the translation for the given key and language.
-//
-// Behavior:
-//   - If the key exists and the language has a translation → returns the translation
-//   - If the key exists but the language is missing → returns the fallback language's value
-//   - If the key does not exist → returns the key string itself (as fallback)
-//
-// Example:
-//
-//	l.AddDictEntry("greeting", DictEntry{"en": "Hello", "ru": "Привет"})
-//	l.Translate("en", "greeting") → "Hello"
-//	l.Translate("es", "greeting") → "Hello" (fallback to "en")
-//	l.Translate("en", "unknown") → "unknown" (key not found)
-//
-// This behavior ensures that missing translations do not break UI or logs —
-// instead, the original key is displayed, making it easy to identify gaps.
+// Translate returns the translation for key in lang, falling back to the configured language or the key itself.
 func (l *L10n) Translate(lang, key string) string {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+
 	entries, exists := l.entries[key]
 	if !exists {
-		return key // Return key as fallback when translation is missing
+		return key
 	}
 
-	// Try requested language
 	if translation, ok := entries[lang]; ok {
 		return translation
 	}
 
-	// Fall back to configured fallback language
 	if fallback, ok := entries[l.fallbackLang]; ok {
 		return fallback
 	}
 
-	// If fallback language is also missing, return the key
 	return key
 }
+
+func cloneDictEntry(src DictEntry) DictEntry {
+	if src == nil {
+		return nil
+	}
+	cloned := make(DictEntry, len(src))
+	for lang, text := range src {
+		cloned[lang] = text
+	}
+	return cloned
+}

l10n_test.go

@@ -0,0 +1,77 @@
+package laniakea
+
+import (
+	"fmt"
+	"sync"
+	"testing"
+)
+
+func TestL10nTranslateUsesFallbackAndKey(t *testing.T) {
+	l10n := NewL10n("en").
+		AddDictEntry("greeting", DictEntry{"en": "Hello", "ru": "Privet"}).
+		AddDictEntry("partial", DictEntry{"ru": "Tolko ru"})
+
+	tests := []struct {
+		name string
+		lang string
+		key  string
+		want string
+	}{
+		{name: "exact match", lang: "ru", key: "greeting", want: "Privet"},
+		{name: "fallback language", lang: "es", key: "greeting", want: "Hello"},
+		{name: "missing fallback returns key", lang: "en", key: "partial", want: "partial"},
+		{name: "unknown key returns key", lang: "en", key: "unknown", want: "unknown"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := l10n.Translate(tt.lang, tt.key); got != tt.want {
+				t.Fatalf("unexpected translation: got %q want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestL10nAddDictEntryCopiesInput(t *testing.T) {
+	l10n := NewL10n("en")
+	entry := DictEntry{"en": "Hello"}
+
+	l10n.AddDictEntry("greeting", entry)
+	entry["en"] = "Mutated"
+
+	if got := l10n.Translate("en", "greeting"); got != "Hello" {
+		t.Fatalf("unexpected translation after external mutation: got %q", got)
+	}
+}
+
+func TestL10nZeroValueIsUsable(t *testing.T) {
+	var l10n L10n
+
+	l10n.AddDictEntry("greeting", DictEntry{"en": "Hello"})
+
+	if got := l10n.Translate("en", "greeting"); got != "Hello" {
+		t.Fatalf("unexpected translation from zero-value l10n: got %q", got)
+	}
+}
+
+func TestL10nConcurrentAccess(t *testing.T) {
+	l10n := NewL10n("en")
+	l10n.AddDictEntry("base", DictEntry{"en": "Hello"})
+
+	var wg sync.WaitGroup
+	for i := 0; i < 8; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			for j := 0; j < 100; j++ {
+				l10n.AddDictEntry(fmt.Sprintf("key-%d-%d", i, j), DictEntry{"en": "value"})
+				_ = l10n.Translate("en", "base")
+			}
+		}(i)
+	}
+	wg.Wait()
+
+	if got := l10n.Translate("en", "base"); got != "Hello" {
+		t.Fatalf("unexpected translation after concurrent access: got %q", got)
+	}
+}

methods.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"encoding/json"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
 )
 
 // Updates fetches new updates from Telegram API using long polling.
@@ -43,8 +43,8 @@ import (
 func (bot *Bot[T]) Updates(ctx context.Context) ([]tgapi.Update, error) {
 	offset := bot.GetUpdateOffset()
 	params := tgapi.UpdateParams{
-		Offset:         Ptr(offset),
-		Timeout:        Ptr(30),
+		Offset:         new(offset),
+		Timeout:        new(30),
 		AllowedUpdates: bot.GetUpdateTypes(),
 	}
 

msg_context.go

@@ -2,40 +2,87 @@ package laniakea
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"log"
+	"reflect"
+	"strconv"
+	"strings"
 	"time"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
-// MsgContext holds the context for handling a Telegram message or callback query.
-// It provides methods to respond, edit, delete, and translate messages, as well as
-// manage inline keyboards and message drafts.
+// MsgContext holds the normalized per-update context passed to command, payload,
+// scene, middleware, and generic update handlers.
+//
+// MsgContext is populated from the current Telegram update before handler routing.
+// Not every field is guaranteed for every update kind. In particular:
+//   - Update is always present.
+//   - Msg is populated only for update kinds that carry a Telegram message object.
+//   - From and FromID are populated only when the update exposes a user identity.
+//   - Chat and ChatID are populated only when the update exposes a chat identity.
+//   - Text, Args, and Prefix are populated only by command or scene command routing.
+//   - CallbackQueryId, CallbackMsgId, and InlineMsgId are populated only for
+//     callback query handling when the corresponding callback targets exist.
+//
+// Helper methods on MsgContext may require a message-backed context. For example,
+// reply helpers need Msg, while inline callback edit helpers can work through
+// InlineMsgId when there is no chat message.
 type MsgContext struct {
 	Api    *tgapi.API
 	Update tgapi.Update
 
-	Msg  *tgapi.Message
+	// Msg is the normalized Telegram message for message-backed update kinds.
+	// It is nil for updates that do not include a message object.
+	Msg *tgapi.Message
+	// From is the normalized Telegram user for update kinds that expose one.
+	// It stays nil for sender-chat-only updates and update kinds without a user.
 	From *tgapi.User
+	// Chat is the normalized Telegram chat for update kinds that expose one.
+	// It is nil for updates that do not include a chat identity.
+	Chat *tgapi.Chat
 
 	// Logger is the logger assigned by the matched plugin for the current handler call.
 	// It may fall back to the bot logger when the plugin has no dedicated logger.
 	Logger *slog.Logger
 
-	InlineMsgId     string
-	CallbackMsgId   int
+	// InlineMsgId is the inline message identifier for callback queries that target
+	// an inline message instead of a chat message.
+	InlineMsgId string
+	// CallbackMsgId is the message ID targeted by the current callback query when
+	// the callback comes from a chat message.
+	CallbackMsgId int
+	// CallbackQueryId is the Telegram callback query ID for payload handlers and
+	// callback-backed scene handlers.
 	CallbackQueryId string
-	FromID          int64
-	Prefix          string
-	Text            string
-	Args            []string
+	// FromID is the normalized sender ID when the current update exposes a user.
+	// It is zero when the update has no user identity.
+	FromID int64
+	// ChatID is the normalized chat ID when the current update exposes a chat.
+	// It is zero when the update has no chat identity.
+	ChatID int64
+	// Prefix is the matched command prefix for command routing and scene-local
+	// command routing. It is empty outside those flows.
+	Prefix string
+	// Text is the parsed command tail for command routing, the parsed scene-command
+	// tail for scene-local command routing, or the trimmed message text seen by a
+	// scene step/message handler. It is empty when the current routing path does
+	// not derive text input.
+	Text string
+	// Args contains parsed command or payload arguments for the current routing
+	// path. It is nil or empty when no argument vector is derived.
+	Args []string
 
 	errorTemplate string
-	botLogger     *slog.Logger
 	l10n          *L10n
 	draftProvider *DraftProvider
 	payloadType   BotPayloadType
+	sceneRuntime  sceneRuntime
+	observer      Observer
+
+	ctx context.Context
 }
 
 // AnswerMessage represents a message sent or edited via MsgContext.
@@ -47,10 +94,13 @@ type AnswerMessage struct {
 	ctx       *MsgContext // internal back-reference
 }
 
-// edit is an internal helper to edit a message's text with optional keyboard and parse mode.
-// Used by Edit, EditMarkdown, EditCallback, etc.
+// Internal helper for text edits with optional keyboard and parse mode.
 func (ctx *MsgContext) edit(messageId int, text string, keyboard *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
-	params := tgapi.EditMessageTextP{
+	if err := validateMessageText(text); err != nil {
+		ctx.Logger.Errorln(err)
+		return nil
+	}
+	params := tgapi.EditMessageText{
 		Text:      text,
 		ParseMode: parseMode,
 	}
@@ -61,15 +111,15 @@ func (ctx *MsgContext) edit(messageId int, text string, keyboard *InlineKeyboard
 	case ctx.InlineMsgId != "":
 		params.InlineMessageID = ctx.InlineMsgId
 	default:
-		ctx.botLogger.Errorln("Can't edit message: no valid message target")
+		ctx.Logger.Errorln(ErrEditTargetMissing)
 		return nil
 	}
 	if keyboard != nil {
 		params.ReplyMarkup = keyboard.Get()
 	}
-	msg, _, err := ctx.Api.EditMessageText(params)
+	msg, _, err := ctx.Api.EditMessageTextWithContext(ctx.Context(), params)
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 		return nil
 	}
 	resultMessageID := messageId
@@ -95,11 +145,10 @@ func (m *AnswerMessage) EditMarkdown(text string) *AnswerMessage {
 	return m.ctx.edit(m.MessageID, text, nil, tgapi.ParseMDV2)
 }
 
-// editCallback is an internal helper to edit the message associated with a callback query.
-// Supports both regular callback messages and inline callback messages.
+// Internal helper for editing callback-linked messages.
 func (ctx *MsgContext) editCallback(text string, keyboard *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
 	if ctx.CallbackMsgId == 0 && ctx.InlineMsgId == "" {
-		ctx.botLogger.Errorln("Can't edit non-callback update message")
+		ctx.Logger.Errorln(ErrCallbackMessageMissing)
 		return nil
 	}
 	return ctx.edit(ctx.CallbackMsgId, text, keyboard, parseMode)
@@ -129,10 +178,13 @@ func (ctx *MsgContext) EditCallbackfMarkdown(format string, keyboard *InlineKeyb
 	return ctx.editCallback(fmt.Sprintf(format, args...), keyboard, tgapi.ParseMDV2)
 }
 
-// editPhotoText edits the caption of a photo/video message.
-// Returns nil when no valid edit target is available for the current context.
+// Internal helper for media-caption edits.
 func (ctx *MsgContext) editPhotoText(messageId int, text string, kb *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
-	params := tgapi.EditMessageCaptionP{
+	if err := validateCaptionText(text); err != nil {
+		ctx.Logger.Errorln(err)
+		return nil
+	}
+	params := tgapi.EditMessageCaption{
 		Caption:   text,
 		ParseMode: parseMode,
 	}
@@ -143,16 +195,16 @@ func (ctx *MsgContext) editPhotoText(messageId int, text string, kb *InlineKeybo
 	case ctx.InlineMsgId != "":
 		params.InlineMessageID = ctx.InlineMsgId
 	default:
-		ctx.botLogger.Errorln("Can't edit caption: no valid message target")
+		ctx.Logger.Errorln(ErrEditTargetMissing)
 		return nil
 	}
 	if kb != nil {
 		params.ReplyMarkup = kb.Get()
 	}
 
-	msg, _, err := ctx.Api.EditMessageCaption(params)
+	msg, _, err := ctx.Api.EditMessageCaptionWithContext(ctx.Context(), params)
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 		return nil
 	}
 	resultMessageID := messageId
@@ -188,14 +240,17 @@ func (m *AnswerMessage) EditCaptionKeyboardMarkdown(text string, kb *InlineKeybo
 	return m.ctx.editPhotoText(m.MessageID, text, kb, tgapi.ParseMDV2)
 }
 
-// answer sends a new message with optional keyboard and parse mode.
-// Uses API limiter to respect Telegram rate limits per chat.
+// Internal helper for message replies with optional keyboard and parse mode.
 func (ctx *MsgContext) answer(text string, keyboard *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
 	if ctx.Msg == nil {
-		ctx.botLogger.Errorln("Can't answer message without a message")
+		ctx.Logger.Errorln(ErrMessageContextNil)
 		return nil
 	}
-	params := tgapi.SendMessageP{
+	if err := validateMessageText(text); err != nil {
+		ctx.Logger.Errorln(err)
+		return nil
+	}
+	params := tgapi.SendMessage{
 		ChatID:    ctx.Msg.Chat.ID,
 		Text:      text,
 		ParseMode: parseMode,
@@ -210,9 +265,9 @@ func (ctx *MsgContext) answer(text string, keyboard *InlineKeyboard, parseMode t
 		params.DirectMessagesTopicID = ctx.Msg.DirectMessageTopic.TopicID
 	}
 
-	msg, err := ctx.Api.SendMessage(params)
+	msg, err := ctx.Api.SendMessageWithContext(ctx.Context(), params)
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 		return nil
 	}
 	return &AnswerMessage{
@@ -225,6 +280,14 @@ func (ctx *MsgContext) Answer(text string) *AnswerMessage {
 	return ctx.answer(text, nil, tgapi.ParseNone)
 }
 
+// AnswerLong sends one or more plain-text messages if text exceeds Telegram's limit.
+//
+// The text is split into Telegram-safe chunks. Returned messages preserve send
+// order. If a chunk fails to send, already-sent messages are returned.
+func (ctx *MsgContext) AnswerLong(text string) []*AnswerMessage {
+	return ctx.answerLong(text, nil, tgapi.ParseNone)
+}
+
 // AnswerMarkdown sends a message using MarkdownV2 formatting.
 //
 // ⚠️ WARNING: User input must be escaped with laniakea.EscapeMarkdownV2() before passing here.
@@ -237,6 +300,11 @@ func (ctx *MsgContext) Answerf(template string, args ...any) *AnswerMessage {
 	return ctx.answer(fmt.Sprintf(template, args...), nil, tgapi.ParseNone)
 }
 
+// AnswerLongf formats a string using fmt.Sprintf and sends it as one or more plain-text messages.
+func (ctx *MsgContext) AnswerLongf(template string, args ...any) []*AnswerMessage {
+	return ctx.answerLong(fmt.Sprintf(template, args...), nil, tgapi.ParseNone)
+}
+
 // AnswerfMarkdown formats a string using fmt.Sprintf and sends it using MarkdownV2.
 //
 // ⚠️ WARNING: User input must be escaped with laniakea.EscapeMarkdownV2() before passing here.
@@ -249,6 +317,13 @@ func (ctx *MsgContext) Keyboard(text string, kb *InlineKeyboard) *AnswerMessage
 	return ctx.answer(text, kb, tgapi.ParseNone)
 }
 
+// KeyboardLong sends long plain text split across multiple messages.
+//
+// The inline keyboard is attached only to the final chunk.
+func (ctx *MsgContext) KeyboardLong(text string, kb *InlineKeyboard) []*AnswerMessage {
+	return ctx.answerLong(text, kb, tgapi.ParseNone)
+}
+
 // KeyboardMarkdown sends a message with an inline keyboard using MarkdownV2.
 //
 // ⚠️ WARNING: User input must be escaped with laniakea.EscapeMarkdownV2() before passing here.
@@ -256,13 +331,56 @@ func (ctx *MsgContext) KeyboardMarkdown(text string, keyboard *InlineKeyboard) *
 	return ctx.answer(text, keyboard, tgapi.ParseMDV2)
 }
 
-// answerPhoto sends a photo with optional caption and keyboard.
-func (ctx *MsgContext) answerPhoto(photoId, text string, kb *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
-	if ctx.Msg == nil {
-		ctx.botLogger.Errorln("Can't answer message without a message")
+func (ctx *MsgContext) answerLong(text string, keyboard *InlineKeyboard, parseMode tgapi.ParseMode) []*AnswerMessage {
+	if parseMode != tgapi.ParseNone {
+		ctx.Logger.Errorln(ErrMessageSplitImpossible)
 		return nil
 	}
-	params := tgapi.SendPhotoP{
+	if ctx.Msg == nil {
+		ctx.Logger.Errorln(ErrMessageContextNil)
+		return nil
+	}
+	if err := validateMessageText(text); err == nil {
+		msg := ctx.answer(text, keyboard, parseMode)
+		if msg == nil {
+			return nil
+		}
+		return []*AnswerMessage{msg}
+	} else if !errors.Is(err, ErrMessageTooLong) {
+		ctx.Logger.Errorln(err)
+		return nil
+	}
+
+	parts := SplitMessageText(text)
+	messages := make([]*AnswerMessage, 0, len(parts))
+	for i, part := range parts {
+		partKeyboard := (*InlineKeyboard)(nil)
+		if i == len(parts)-1 {
+			partKeyboard = keyboard
+		}
+		msg := ctx.answer(part, partKeyboard, parseMode)
+		if msg == nil {
+			break
+		}
+		messages = append(messages, msg)
+	}
+	if len(messages) == 0 {
+		return nil
+	}
+	return messages
+}
+
+// Internal helper for photo replies with optional caption and keyboard.
+func (ctx *MsgContext) answerPhoto(photoId, text string, kb *InlineKeyboard, parseMode tgapi.ParseMode) *AnswerMessage {
+	if ctx.Msg == nil {
+		ctx.Logger.Errorln(ErrMessageContextNil)
+		return nil
+	}
+	if err := validateCaptionText(text); err != nil {
+		ctx.Logger.Errorln(err)
+		return nil
+	}
+	params := tgapi.SendPhoto{
 		ChatID:    ctx.Msg.Chat.ID,
 		Caption:   text,
 		ParseMode: parseMode,
@@ -278,9 +396,9 @@ func (ctx *MsgContext) answerPhoto(photoId, text string, kb *InlineKeyboard, par
 		params.DirectMessagesTopicID = int(ctx.Msg.DirectMessageTopic.TopicID)
 	}
 
-	msg, err := ctx.Api.SendPhoto(params)
+	msg, err := ctx.Api.SendPhotoWithContext(ctx.Context(), params)
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 		return nil
 	}
 	return &AnswerMessage{
@@ -324,22 +442,22 @@ func (ctx *MsgContext) AnswerPhotofMarkdown(photoId, template string, args ...an
 	return ctx.answerPhoto(photoId, fmt.Sprintf(template, args...), nil, tgapi.ParseMDV2)
 }
 
-// delete removes a message by ID.
+// Internal helper that deletes a message by ID.
 func (ctx *MsgContext) delete(messageId int) {
 	if messageId == 0 {
-		ctx.botLogger.Errorln("Can't delete message: message ID zero")
+		ctx.Logger.Errorln(ErrMessageIDZero)
 		return
 	}
 	if ctx.Msg == nil {
-		ctx.botLogger.Errorln("Can't delete message: no chat message context")
+		ctx.Logger.Errorln(ErrMessageContextNil)
 		return
 	}
-	_, err := ctx.Api.DeleteMessage(tgapi.DeleteMessageP{
+	_, err := ctx.Api.DeleteMessageWithContext(ctx.Context(), tgapi.DeleteMessage{
 		ChatID:    ctx.Msg.Chat.ID,
 		MessageID: messageId,
 	})
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 	}
 }
 
@@ -349,24 +467,23 @@ func (m *AnswerMessage) Delete() { m.ctx.delete(m.MessageID) }
 // CallbackDelete deletes the message that triggered the callback query.
 func (ctx *MsgContext) CallbackDelete() {
 	if ctx.CallbackMsgId == 0 {
-		ctx.botLogger.Errorln("Can't delete callback message: no callback message ID")
+		ctx.Logger.Errorln(ErrCallbackMessageMissing)
 		return
 	}
 	ctx.delete(ctx.CallbackMsgId)
 }
 
-// answerCallbackQuery sends a response to a callback query (optional text/alert/url).
-// Does nothing if CallbackQueryId is empty.
+// Internal helper that answers a callback query with optional text, alert, or URL.
 func (ctx *MsgContext) answerCallbackQuery(url, text string, showAlert bool) {
 	if len(ctx.CallbackQueryId) == 0 {
 		return
 	}
-	_, err := ctx.Api.AnswerCallbackQuery(tgapi.AnswerCallbackQueryP{
+	_, err := ctx.Api.AnswerCallbackQueryWithContext(ctx.Context(), tgapi.AnswerCallbackQuery{
 		CallbackQueryID: ctx.CallbackQueryId,
 		Text:            text, ShowAlert: showAlert, URL: url,
 	})
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 	}
 }
 
@@ -385,26 +502,30 @@ func (ctx *MsgContext) AnswerCbQueryUrl(u string) { ctx.answerCallbackQuery(u, "
 // SendAction sends a chat action (typing, uploading_photo, etc.) to indicate bot activity.
 func (ctx *MsgContext) SendAction(action tgapi.ChatActionType) {
 	if ctx.Msg == nil {
-		ctx.botLogger.Errorln("Can't send action without chat message context")
+		ctx.Logger.Errorln("Can't send action without chat message context")
 		return
 	}
-	params := tgapi.SendChatActionP{
+	params := tgapi.SendChatAction{
 		ChatID: ctx.Msg.Chat.ID, Action: action,
 	}
 	if ctx.Msg.MessageThreadID > 0 {
 		params.MessageThreadID = ctx.Msg.MessageThreadID
 	}
-	_, err := ctx.Api.SendChatAction(params)
+	_, err := ctx.Api.SendChatActionWithContext(ctx.Context(), params)
 	if err != nil {
-		ctx.botLogger.Errorln(err)
+		ctx.Logger.Errorln(err)
 	}
 }
 
-// error sends an error message to the user and logs it.
-// Uses errorTemplate to format the message.
-// For callbacks: sends as callback answer (no alert).
-// For regular messages: sends as plain text.
+// Internal helper that formats, sends, and logs an error.
 func (ctx *MsgContext) error(err error) {
+	if err == nil {
+		return
+	}
+	ctx.Logger.Errorln(err)
+	if IsInternalError(err) {
+		return
+	}
 	text := fmt.Sprintf(ctx.errorTemplate, err.Error())
 
 	if ctx.CallbackQueryId != "" {
@@ -412,7 +533,6 @@ func (ctx *MsgContext) error(err error) {
 	} else {
 		ctx.answer(text, nil, tgapi.ParseNone)
 	}
-	ctx.botLogger.Errorln(err)
 }
 
 // Error is an alias for error().
@@ -420,15 +540,25 @@ func (ctx *MsgContext) Error(err error) { ctx.error(err) }
 
 func (ctx *MsgContext) newDraft(parseMode tgapi.ParseMode) *Draft {
 	if ctx.Msg == nil {
-		ctx.botLogger.Errorln("can't create draft: ctx.Msg is nil")
+		ctx.Logger.Errorln(ErrMessageContextNil)
+		return nil
+	}
+	if ctx.Api == nil {
+		ctx.Logger.Errorln(ErrAPIIsNil)
+		return nil
+	}
+	if ctx.draftProvider == nil {
+		ctx.Logger.Errorln(ErrDraftProviderNil)
 		return nil
 	}
 
-	c, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-	if err := ctx.Api.Limiter.Wait(c, ctx.Msg.Chat.ID); err != nil {
-		ctx.botLogger.Errorln(err)
-		return nil
+	if ctx.Api.Limiter != nil {
+		c, cancel := context.WithTimeout(ctx.Context(), 5*time.Second)
+		defer cancel()
+		if err := ctx.Api.Limiter.Wait(c, ctx.Msg.Chat.ID); err != nil {
+			ctx.Logger.Errorln(err)
+			return nil
+		}
 	}
 
 	draft := ctx.draftProvider.NewDraft(parseMode).SetChat(ctx.Msg.Chat.ID, ctx.Msg.MessageThreadID)
@@ -463,3 +593,200 @@ func (ctx *MsgContext) Translate(key string) string {
 func (ctx *MsgContext) NewInlineKeyboard(maxRow int) *InlineKeyboard {
 	return NewInlineKeyboard(ctx.payloadType, maxRow)
 }
+
+func bindPositional(args []string, dst any) error {
+	v := reflect.ValueOf(dst)
+	if v.Kind() != reflect.Pointer || v.IsNil() {
+		return ErrBindArgsTargetNotPointer
+	}
+
+	v = v.Elem()
+	if v.Kind() != reflect.Struct {
+		return ErrBindArgsTargetNotStruct
+	}
+
+	t := v.Type()
+	fields := make([]int, 0, v.NumField())
+
+	for i := 0; i < v.NumField(); i++ {
+		field := v.Field(i)
+		if !field.CanSet() {
+			continue
+		}
+		fields = append(fields, i)
+	}
+
+	argIndex := 0
+	for fieldPos, fieldIndex := range fields {
+		field := v.Field(fieldIndex)
+		fieldType := t.Field(fieldIndex)
+
+		if argIndex >= len(args) {
+			// Leave trailing fields at their zero values when arguments run out.
+			break
+		}
+
+		isLastBindableField := fieldPos == len(fields)-1
+
+		raw := args[argIndex]
+		if isLastBindableField && field.Kind() == reflect.String {
+			raw = strings.Join(args[argIndex:], " ")
+		}
+
+		switch field.Kind() {
+		case reflect.String:
+			field.SetString(raw)
+		case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+			n, err := strconv.ParseInt(raw, 10, 64)
+			if err != nil {
+				return fmt.Errorf("%w: field %s: %v", ErrBindArgsConversion, fieldType.Name, err)
+			}
+			field.SetInt(n)
+		case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+			n, err := strconv.ParseUint(raw, 10, 64)
+			if err != nil {
+				return fmt.Errorf("%w: field %s: %v", ErrBindArgsConversion, fieldType.Name, err)
+			}
+			field.SetUint(n)
+		case reflect.Float32, reflect.Float64:
+			f, err := strconv.ParseFloat(raw, 64)
+			if err != nil {
+				return fmt.Errorf("%w: field %s: %v", ErrBindArgsConversion, fieldType.Name, err)
+			}
+			field.SetFloat(f)
+		case reflect.Bool:
+			b, err := strconv.ParseBool(raw)
+			if err != nil {
+				return fmt.Errorf("%w: field %s: %v", ErrBindArgsConversion, fieldType.Name, err)
+			}
+			field.SetBool(b)
+		default:
+			return fmt.Errorf("%w: field %s: %s", ErrBindArgsUnsupportedFieldType, fieldType.Name, field.Kind())
+		}
+
+		if isLastBindableField && field.Kind() == reflect.String {
+			break
+		}
+		argIndex++
+	}
+
+	return nil
+}
+
+// BindArgs binds positional command arguments from ctx.Args into dst.
+//
+// Exported struct fields are filled in declaration order. When fewer arguments
+// are provided than fields, the remaining fields keep their zero values. If the
+// final bindable field is a string, it receives the remaining arguments joined
+// with spaces.
+func (ctx *MsgContext) BindArgs(dst any) error {
+	return bindPositional(ctx.Args, dst)
+}
+
+// Context returns the request-scoped context associated with the current update.
+func (ctx *MsgContext) Context() context.Context {
+	if ctx.ctx == nil {
+		return context.Background()
+	}
+	return ctx.ctx
+}
+
+func (ctx *MsgContext) emitPolicyChecked(event PolicyCheckedEvent) {
+	if ctx == nil || ctx.observer == nil {
+		return
+	}
+	defer func() {
+		if r := recover(); r != nil {
+			if ctx.Logger != nil {
+				ctx.Logger.Errorln(fmt.Sprintf("panic in observer policy event: %v", r))
+				return
+			}
+			log.Printf("panic in observer policy event: %v", r)
+		}
+	}()
+	ctx.observer.OnPolicyChecked(ctx.Context(), event)
+}
+
+// EnterScene enters the named scene at its configured entry step.
+func (ctx *MsgContext) EnterScene(name string) error {
+	if ctx.sceneRuntime == nil {
+		return ErrSceneRuntimeNil
+	}
+
+	scene, ok := ctx.sceneRuntime.findScene(name)
+	if !ok {
+		return ErrSceneNotFound
+	}
+
+	key, ok := ctx.sceneRuntime.buildSceneKey(scene.Scope, ctx)
+	if !ok {
+		return ErrCantFindSession
+	}
+	if scene.Entry == "" {
+		return ErrSceneEntryNotSet
+	}
+	if _, ok := scene.Steps[scene.Entry]; !ok {
+		return ErrSceneStepNotFound
+	}
+
+	session := SceneSession{
+		Scene: scene.Name,
+		Step:  scene.Entry,
+	}
+
+	return ctx.sceneRuntime.setSession(key, session)
+}
+
+// EnterSceneStep enters the named scene at a specific step.
+func (ctx *MsgContext) EnterSceneStep(name, step string) error {
+	if ctx.sceneRuntime == nil {
+		return ErrSceneRuntimeNil
+	}
+
+	scene, ok := ctx.sceneRuntime.findScene(name)
+	if !ok {
+		return ErrSceneNotFound
+	}
+	if _, ok := scene.Steps[step]; !ok {
+		return ErrSceneStepNotFound
+	}
+
+	key, ok := ctx.sceneRuntime.buildSceneKey(scene.Scope, ctx)
+	if !ok {
+		return ErrCantFindSession
+	}
+
+	session := SceneSession{
+		Scene: scene.Name,
+		Step:  step,
+	}
+
+	return ctx.sceneRuntime.setSession(key, session)
+}
+
+// ExitScene leaves the currently active scene for this context.
+func (ctx *MsgContext) ExitScene() error {
+	if ctx.sceneRuntime == nil {
+		return ErrSceneRuntimeNil
+	}
+
+	_, session, err := ctx.sceneRuntime.findSceneSession(ctx)
+	if err != nil {
+		return err
+	}
+	if session.Scene == "" {
+		return ErrNotInScene
+	}
+
+	scene, ok := ctx.sceneRuntime.findScene(session.Scene)
+	if !ok {
+		return ErrSceneNotFound
+	}
+
+	key, ok := ctx.sceneRuntime.buildSceneKey(scene.Scope, ctx)
+	if !ok {
+		return ErrCantFindSession
+	}
+
+	return ctx.sceneRuntime.deleteSession(key)
+}

msg_context_test.go

@@ -2,13 +2,15 @@ package laniakea
 
 import (
 	"encoding/json"
+	"errors"
 	"io"
 	"net/http"
+	"reflect"
 	"strings"
 	"testing"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 func TestAnswerPhotoIncludesDirectMessagesTopicID(t *testing.T) {
@@ -45,10 +47,10 @@ func TestAnswerPhotoIncludesDirectMessagesTopicID(t *testing.T) {
 	ctx := &MsgContext{
 		Api: api,
 		Msg: &tgapi.Message{
-			Chat:               &tgapi.Chat{ID: 42, Type: string(tgapi.ChatTypePrivate)},
+			Chat:               &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate},
 			DirectMessageTopic: &tgapi.DirectMessageTopic{TopicID: 77},
 		},
-		botLogger: slog.CreateLogger(),
+		Logger: slog.CreateLogger(),
 	}
 
 	answer := ctx.AnswerPhoto("photo-id", "caption")
@@ -62,3 +64,405 @@ func TestAnswerPhotoIncludesDirectMessagesTopicID(t *testing.T) {
 		t.Fatalf("unexpected direct_messages_topic_id: %v", got)
 	}
 }
+
+func TestBindArgsBindsScalarFields(t *testing.T) {
+	type input struct {
+		ID     int
+		Active bool
+		Score  float64
+		Name   string
+	}
+
+	ctx := &MsgContext{Args: []string{"42", "true", "3.5", "Ada", "Lovelace"}}
+	var got input
+
+	if err := ctx.BindArgs(&got); err != nil {
+		t.Fatalf("BindArgs returned error: %v", err)
+	}
+
+	want := input{
+		ID:     42,
+		Active: true,
+		Score:  3.5,
+		Name:   "Ada Lovelace",
+	}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("unexpected bound value: got %#v want %#v", got, want)
+	}
+}
+
+func TestBindArgsLeavesTrailingFieldsZeroWhenArgsRunOut(t *testing.T) {
+	type input struct {
+		ID     int
+		Reason string
+		Admin  bool
+	}
+
+	ctx := &MsgContext{Args: []string{"7"}}
+	var got input
+
+	if err := ctx.BindArgs(&got); err != nil {
+		t.Fatalf("BindArgs returned error: %v", err)
+	}
+
+	if got.ID != 7 {
+		t.Fatalf("unexpected ID: got %d want 7", got.ID)
+	}
+	if got.Reason != "" {
+		t.Fatalf("expected zero-value Reason, got %q", got.Reason)
+	}
+	if got.Admin {
+		t.Fatal("expected zero-value Admin")
+	}
+}
+
+func TestBindArgsRejectsInvalidTargets(t *testing.T) {
+	ctx := &MsgContext{Args: []string{"1"}}
+
+	if err := ctx.BindArgs(nil); !errors.Is(err, ErrBindArgsTargetNotPointer) {
+		t.Fatalf("expected ErrBindArgsTargetNotPointer for nil target, got %v", err)
+	}
+
+	var notStruct int
+	if err := ctx.BindArgs(&notStruct); !errors.Is(err, ErrBindArgsTargetNotStruct) {
+		t.Fatalf("expected ErrBindArgsTargetNotStruct for non-struct target, got %v", err)
+	}
+}
+
+func TestBindArgsReportsConversionFailures(t *testing.T) {
+	type input struct {
+		ID int
+	}
+
+	ctx := &MsgContext{Args: []string{"oops"}}
+	var got input
+
+	err := ctx.BindArgs(&got)
+	if err == nil {
+		t.Fatal("expected BindArgs to fail")
+	}
+	if !errors.Is(err, ErrBindArgsConversion) {
+		t.Fatalf("expected ErrBindArgsConversion, got %v", err)
+	}
+	if !strings.Contains(err.Error(), "field ID") {
+		t.Fatalf("expected field name in error, got %v", err)
+	}
+}
+
+func TestBindArgsRejectsUnsupportedFieldTypes(t *testing.T) {
+	type input struct {
+		Tags []string
+	}
+
+	ctx := &MsgContext{Args: []string{"tag"}}
+	var got input
+
+	err := ctx.BindArgs(&got)
+	if err == nil {
+		t.Fatal("expected BindArgs to fail")
+	}
+	if !errors.Is(err, ErrBindArgsUnsupportedFieldType) {
+		t.Fatalf("expected ErrBindArgsUnsupportedFieldType, got %v", err)
+	}
+}
+
+func TestErrorDefaultRemainsUserVisibleForMessageFlow(t *testing.T) {
+	var requests int
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			requests++
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":{"message_id":9,"date":1}}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:           api,
+		Msg:           &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger:        slog.CreateLogger(),
+		errorTemplate: "Error: %s",
+	}
+
+	ctx.error(errors.New("boom"))
+
+	if requests != 1 {
+		t.Fatalf("expected one user-facing error reply, got %d requests", requests)
+	}
+	if got := gotBody["text"]; got != "Error: boom" {
+		t.Fatalf("unexpected error reply text: %v", got)
+	}
+}
+
+func TestErrorInternalSkipsUserReplyForMessageFlow(t *testing.T) {
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			t.Fatal("unexpected HTTP request for internal-only error")
+			return nil, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:           api,
+		Msg:           &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger:        slog.CreateLogger(),
+		errorTemplate: "Error: %s",
+	}
+
+	ctx.error(AsInternalError(errors.New("boom")))
+}
+
+func TestErrorInternalSkipsCallbackAnswer(t *testing.T) {
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			t.Fatal("unexpected callback answer request for internal-only error")
+			return nil, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:             api,
+		Logger:          slog.CreateLogger(),
+		errorTemplate:   "%s",
+		CallbackQueryId: "cb-1",
+	}
+
+	ctx.error(AsInternalError(errors.New("boom")))
+}
+
+func TestErrorUserVisibleAnswersCallback(t *testing.T) {
+	var requests int
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			requests++
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":true}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:             api,
+		Logger:          slog.CreateLogger(),
+		errorTemplate:   "Oops: %s",
+		CallbackQueryId: "cb-1",
+	}
+
+	ctx.error(AsUserError(errors.New("boom")))
+
+	if requests != 1 {
+		t.Fatalf("expected one callback error answer, got %d requests", requests)
+	}
+	if got := gotBody["text"]; got != "Oops: boom" {
+		t.Fatalf("unexpected callback error text: %v", got)
+	}
+}
+
+func TestAnswerRejectsEmptyMessage(t *testing.T) {
+	ctx := &MsgContext{
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger: slog.CreateLogger(),
+	}
+
+	if answer := ctx.Answer(""); answer != nil {
+		t.Fatal("expected nil answer for empty message")
+	}
+}
+
+func TestAnswerRejectsLongMessageWithoutSendingRequest(t *testing.T) {
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			t.Fatal("unexpected HTTP request")
+			return nil, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:    api,
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger: slog.CreateLogger(),
+	}
+
+	if answer := ctx.Answer(strings.Repeat("a", maxMessageTextLen+1)); answer != nil {
+		t.Fatal("expected nil answer for long message")
+	}
+}
+
+func TestValidateMessageText(t *testing.T) {
+	if err := validateMessageText(""); !errors.Is(err, ErrEmptyMessage) {
+		t.Fatalf("expected ErrEmptyMessage, got %v", err)
+	}
+	if err := validateMessageText(strings.Repeat("a", maxMessageTextLen+1)); !errors.Is(err, ErrMessageTooLong) {
+		t.Fatalf("expected ErrMessageTooLong, got %v", err)
+	}
+	if err := validateMessageText("ok"); err != nil {
+		t.Fatalf("expected nil error, got %v", err)
+	}
+}
+
+func TestValidateCaptionText(t *testing.T) {
+	if err := validateCaptionText(strings.Repeat("a", maxMessageCaptionLen+1)); !errors.Is(err, ErrCaptionTooLong) {
+		t.Fatalf("expected ErrCaptionTooLong, got %v", err)
+	}
+	if err := validateCaptionText(""); err != nil {
+		t.Fatalf("expected nil error, got %v", err)
+	}
+}
+
+func TestSplitMessageTextPreservesContent(t *testing.T) {
+	text := "alpha beta\n" + strings.Repeat("x", maxMessageTextLen) + " omega"
+
+	parts := SplitMessageText(text)
+	if len(parts) < 2 {
+		t.Fatalf("expected multiple parts, got %d", len(parts))
+	}
+
+	for i, part := range parts {
+		if got := len([]rune(part)); got > maxMessageTextLen {
+			t.Fatalf("part %d exceeded limit: %d", i, got)
+		}
+	}
+
+	if got := strings.Join(parts, ""); got != text {
+		t.Fatalf("split/join mismatch: got %q want %q", got, text)
+	}
+}
+
+func TestAnswerLongSplitsRequestsAndAttachesKeyboardToLastChunk(t *testing.T) {
+	var requests []map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			var got map[string]any
+			if err := json.Unmarshal(body, &got); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			requests = append(requests, got)
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":{"message_id":9,"date":1}}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:    api,
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger: slog.CreateLogger(),
+	}
+	kb := NewInlineKeyboardJson(1).AddCallbackButton("A", "cmd")
+	text := strings.Repeat("a", maxMessageTextLen) + " " + strings.Repeat("b", 32)
+
+	messages := ctx.KeyboardLong(text, kb)
+	if got := len(messages); got != 2 {
+		t.Fatalf("expected 2 sent messages, got %d", got)
+	}
+	if got := len(requests); got != 2 {
+		t.Fatalf("expected 2 requests, got %d", got)
+	}
+	if _, ok := requests[0]["reply_markup"]; ok {
+		t.Fatal("did not expect keyboard on first chunk")
+	}
+	if _, ok := requests[1]["reply_markup"]; !ok {
+		t.Fatal("expected keyboard on final chunk")
+	}
+
+	gotTexts := []string{requests[0]["text"].(string), requests[1]["text"].(string)}
+	wantTexts := SplitMessageText(text)
+	if !reflect.DeepEqual(gotTexts, wantTexts) {
+		t.Fatalf("unexpected chunk texts: got %q want %q", gotTexts, wantTexts)
+	}
+}

msg_handler.go

@@ -0,0 +1,219 @@
+package laniakea
+
+import (
+	"strings"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+)
+
+func (bot *Bot[T]) handleMessage(update *tgapi.Update, ctx *MsgContext) bool {
+	var msg *tgapi.Message
+	if update.Message != nil {
+		msg = update.Message
+	} else if update.ChannelPost != nil {
+		msg = update.ChannelPost
+	} else {
+		return false
+	}
+
+	var text string
+	if len(msg.Text) > 0 {
+		text = msg.Text
+	} else if len(msg.Caption) > 0 {
+		text = msg.Caption
+	} else {
+		return false
+	}
+
+	prefix, cmd, args := bot.parseCommand(text)
+	if cmd == "" {
+		return false
+	}
+	ctx.Prefix = prefix
+
+	if strings.Contains(cmd, "@") {
+		botUsername := bot.username
+		if botUsername != "" && strings.HasSuffix(cmd, "@"+botUsername) {
+			cmd = cmd[:len(cmd)-len("@"+botUsername)] // убираем @botname
+		}
+	}
+	// Ищем команду по точному совпадению
+	for _, plugin := range bot.plugins {
+		if _, exists := plugin.commands[cmd]; exists {
+
+			ctx.Text = args
+			ctx.Args = strings.Fields(args) // Убирает лишние пробелы
+
+			if plugin.logger != nil {
+				ctx.Logger = plugin.logger
+			}
+			if !plugin.executeMiddlewares(ctx, bot.appData) {
+				return false
+			}
+
+			startTime := time.Now()
+			bot.safeEmitEvent(ctx.Context(), HandlerStartedEvent{
+				UpdateID:    update.UpdateID,
+				UpdateType:  update.Type,
+				Plugin:      plugin.name,
+				HandlerKind: HandlerCommandKind,
+				HandlerName: cmd,
+				FromID:      ctx.FromID,
+				ChatID:      ctx.ChatID,
+			})
+
+			err := plugin.executeCmd(cmd, ctx, bot.appData)
+			handlerEndEvent := HandlerFinishedEvent{
+				UpdateID:    update.UpdateID,
+				UpdateType:  update.Type,
+				Plugin:      plugin.name,
+				HandlerKind: HandlerCommandKind,
+				HandlerName: cmd,
+				FromID:      ctx.FromID,
+				ChatID:      ctx.ChatID,
+				Duration:    time.Since(startTime),
+			}
+
+			var errorEvent *ErrorEvent = nil
+			if err != nil {
+				ctx.error(err)
+				handlerEndEvent.Err = err
+				handlerEndEvent.UserFacing = IsUserError(err)
+				errorEvent = &ErrorEvent{
+					UpdateID:    update.UpdateID,
+					UpdateType:  update.Type,
+					Plugin:      plugin.name,
+					HandlerKind: HandlerCommandKind,
+					HandlerName: cmd,
+					FromID:      ctx.FromID,
+					ChatID:      ctx.ChatID,
+					Err:         err,
+					UserFacing:  handlerEndEvent.UserFacing,
+				}
+			}
+			bot.safeEmitEvent(ctx.Context(), handlerEndEvent)
+			if errorEvent != nil {
+				bot.safeEmitEvent(ctx.Context(), *errorEvent)
+			}
+			return true
+		}
+	}
+	return false
+}
+
+func (bot *Bot[T]) handleCallback(update *tgapi.Update, ctx *MsgContext) bool {
+	data, err := bot.decodePayload(update.CallbackQuery.Data)
+	if err != nil {
+		bot.logger.Errorln(err)
+		bot.safeEmitEvent(ctx.Context(), ErrorEvent{
+			UpdateID:    update.UpdateID,
+			UpdateType:  update.Type,
+			Plugin:      "bot",
+			HandlerKind: HandlerPayloadKind,
+			HandlerName: "decodePayload",
+			FromID:      ctx.FromID,
+			ChatID:      ctx.ChatID,
+			Err:         err,
+			UserFacing:  false,
+		})
+		return false
+	}
+
+	ctx.Args = data.Args
+
+	for _, plugin := range bot.plugins {
+		_, ok := plugin.payloads[data.Command]
+		if !ok {
+			continue
+		}
+
+		ctx.Logger = plugin.logger
+		if ctx.Logger == nil {
+			ctx.Logger = bot.logger
+		}
+
+		if !plugin.executeMiddlewares(ctx, bot.appData) {
+			return false
+		}
+
+		startTime := time.Now()
+		bot.safeEmitEvent(ctx.Context(), HandlerStartedEvent{
+			UpdateID:    update.UpdateID,
+			UpdateType:  update.Type,
+			Plugin:      plugin.name,
+			HandlerKind: HandlerPayloadKind,
+			HandlerName: data.Command,
+			FromID:      ctx.FromID,
+			ChatID:      ctx.ChatID,
+		})
+		err := plugin.executePayload(data.Command, ctx, bot.appData)
+
+		endEvent := HandlerFinishedEvent{
+			UpdateID:    update.UpdateID,
+			UpdateType:  update.Type,
+			Plugin:      plugin.name,
+			HandlerKind: HandlerPayloadKind,
+			HandlerName: data.Command,
+			FromID:      ctx.FromID,
+			ChatID:      ctx.ChatID,
+			Duration:    time.Since(startTime),
+		}
+		var errorEvent *ErrorEvent = nil
+		if err != nil {
+			ctx.error(err)
+			errorEvent = &ErrorEvent{
+				UpdateID:    update.UpdateID,
+				UpdateType:  update.Type,
+				Plugin:      plugin.name,
+				HandlerKind: HandlerPayloadKind,
+				HandlerName: data.Command,
+				FromID:      ctx.FromID,
+				ChatID:      ctx.ChatID,
+				Err:         err,
+				UserFacing:  IsUserError(err),
+			}
+			endEvent.Err = err
+			endEvent.UserFacing = errorEvent.UserFacing
+		}
+		bot.safeEmitEvent(ctx.Context(), endEvent)
+		if errorEvent != nil {
+			bot.safeEmitEvent(ctx.Context(), *errorEvent)
+		}
+		return true
+	}
+	return false
+}
+
+func (bot *Bot[T]) checkPrefixes(text string) (string, bool) {
+	for _, prefix := range bot.prefixes {
+		if prefix == "" {
+			if bot.logger != nil {
+				bot.logger.Warnln("empty prefix is not allowed")
+			}
+			continue
+		}
+		if strings.HasPrefix(text, prefix) {
+			return prefix, true
+		}
+	}
+	return "", false
+}
+
+func (bot *Bot[T]) parseCommand(text string) (prefix, cmd, args string) {
+	if prefix, hasPrefix := bot.checkPrefixes(text); hasPrefix {
+		text = strings.TrimSpace(text[len(prefix):])
+		spaceIndex := strings.Index(text, " ")
+		var cmd string
+		var args string
+		if spaceIndex == -1 {
+			cmd = text
+			args = ""
+		} else {
+			cmd = text[:spaceIndex]
+			args = strings.TrimSpace(text[spaceIndex:])
+		}
+		return prefix, cmd, args
+	}
+	return "", "", ""
+}

observer.go

@@ -0,0 +1,184 @@
+package laniakea
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+)
+
+// HandlerEventKind identifies the kind of handler observed by runtime events.
+type HandlerEventKind string
+
+const (
+	// HandlerCommandKind identifies a command handler.
+	HandlerCommandKind HandlerEventKind = "command"
+	// HandlerPayloadKind identifies a callback payload handler.
+	HandlerPayloadKind HandlerEventKind = "payload"
+	// HandlerUpdateKind identifies a generic update handler.
+	HandlerUpdateKind HandlerEventKind = "update"
+	// HandlerRunnerKind identifies a background runner execution.
+	HandlerRunnerKind HandlerEventKind = "runner"
+	// HandlerPollingKind identifies polling and getUpdates runtime work.
+	HandlerPollingKind HandlerEventKind = "polling"
+	// HandlerSceneKind identifies a scene runtime handler wrapper.
+	HandlerSceneKind HandlerEventKind = "scene"
+	// HandlerSceneStepKind identifies a scene step handler.
+	HandlerSceneStepKind HandlerEventKind = "scene_step"
+	// HandlerSceneCommandKind identifies a scene-local command handler.
+	HandlerSceneCommandKind HandlerEventKind = "scene_command"
+	// HandlerSceneMessageKind identifies a scene message fallback handler.
+	HandlerSceneMessageKind HandlerEventKind = "scene_message"
+)
+
+// Event is the marker interface implemented by all observer runtime events.
+type Event interface {
+	isEvent()
+}
+
+// UpdateReceivedEvent describes an update entering the bot runtime.
+type UpdateReceivedEvent struct {
+	UpdateID   int
+	UpdateType tgapi.UpdateType
+	FromID     int64
+	ChatID     int64
+}
+
+// UpdateHandledEvent describes a completed update execution path.
+type UpdateHandledEvent struct {
+	UpdateID   int
+	UpdateType tgapi.UpdateType
+	FromID     int64
+	ChatID     int64
+	Duration   time.Duration
+	Handled    bool
+}
+
+// HandlerStartedEvent describes a handler about to execute.
+type HandlerStartedEvent struct {
+	UpdateID    int
+	UpdateType  tgapi.UpdateType
+	Plugin      string
+	HandlerKind HandlerEventKind
+	HandlerName string
+	FromID      int64
+	ChatID      int64
+}
+
+// HandlerFinishedEvent describes a handler that has completed.
+type HandlerFinishedEvent struct {
+	UpdateID    int
+	UpdateType  tgapi.UpdateType
+	Plugin      string
+	HandlerKind HandlerEventKind
+	HandlerName string
+	FromID      int64
+	ChatID      int64
+	Duration    time.Duration
+	Err         error
+	UserFacing  bool
+}
+
+// SceneTransitionEvent describes a scene state transition.
+type SceneTransitionEvent struct {
+	Plugin string
+	Scene  string
+	From   string
+	To     string
+	Action SceneAction
+	FromID int64
+	ChatID int64
+}
+
+// PolicyCheckedEvent describes the result of a policy evaluation.
+type PolicyCheckedEvent struct {
+	Name     string
+	Plugin   string
+	FromID   int64
+	ChatID   int64
+	Passed   bool
+	Err      error
+	Internal bool
+}
+
+// RunnerFinishedEvent describes a completed background runner execution.
+type RunnerFinishedEvent struct {
+	Name     string
+	Duration time.Duration
+	Err      error
+}
+
+// PollingRetryEvent describes a polling retry after a failed getUpdates call.
+type PollingRetryEvent struct {
+	Attempt int
+	Delay   time.Duration
+	Err     error
+}
+
+// ErrorEvent describes an error routed through framework error handling.
+type ErrorEvent struct {
+	UpdateID    int
+	UpdateType  tgapi.UpdateType
+	Plugin      string
+	HandlerKind HandlerEventKind
+	HandlerName string
+	FromID      int64
+	ChatID      int64
+	Err         error
+	UserFacing  bool
+}
+
+func (UpdateReceivedEvent) isEvent()  {}
+func (UpdateHandledEvent) isEvent()   {}
+func (HandlerStartedEvent) isEvent()  {}
+func (HandlerFinishedEvent) isEvent() {}
+func (SceneTransitionEvent) isEvent() {}
+func (PolicyCheckedEvent) isEvent()   {}
+func (RunnerFinishedEvent) isEvent()  {}
+func (PollingRetryEvent) isEvent()    {}
+func (ErrorEvent) isEvent()           {}
+
+// Observer receives best-effort runtime instrumentation events.
+type Observer interface {
+	OnReceiveUpdate(ctx context.Context, event UpdateReceivedEvent)
+	OnHandledUpdate(ctx context.Context, event UpdateHandledEvent)
+	OnHandlerStarted(ctx context.Context, event HandlerStartedEvent)
+	OnHandlerFinished(ctx context.Context, event HandlerFinishedEvent)
+	OnSceneTransition(ctx context.Context, event SceneTransitionEvent)
+	OnPolicyChecked(ctx context.Context, event PolicyCheckedEvent)
+	OnRunnerFinished(ctx context.Context, event RunnerFinishedEvent)
+	OnPollingRetry(ctx context.Context, event PollingRetryEvent)
+	OnError(ctx context.Context, event ErrorEvent)
+}
+
+func (bot *Bot[T]) safeEmitEvent(ctx context.Context, event Event) {
+	if bot.observer == nil {
+		return
+	}
+	defer func() {
+		if r := recover(); r != nil {
+			bot.logger.Errorln(fmt.Sprintf("panic in observer: %v", r))
+		}
+	}()
+	switch e := event.(type) {
+	case UpdateReceivedEvent:
+		bot.observer.OnReceiveUpdate(ctx, e)
+	case UpdateHandledEvent:
+		bot.observer.OnHandledUpdate(ctx, e)
+	case HandlerStartedEvent:
+		bot.observer.OnHandlerStarted(ctx, e)
+	case HandlerFinishedEvent:
+		bot.observer.OnHandlerFinished(ctx, e)
+	case SceneTransitionEvent:
+		bot.observer.OnSceneTransition(ctx, e)
+	case PolicyCheckedEvent:
+		bot.observer.OnPolicyChecked(ctx, e)
+	case RunnerFinishedEvent:
+		bot.observer.OnRunnerFinished(ctx, e)
+	case PollingRetryEvent:
+		bot.observer.OnPollingRetry(ctx, e)
+	case ErrorEvent:
+		bot.observer.OnError(ctx, e)
+	}
+}

plugins.go

@@ -4,11 +4,13 @@ import (
 	"errors"
 	"regexp"
 
-	"git.nix13.pw/scuroneko/extypes"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/extypes"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
-// CommandValueType defines the expected type of a command argument.
+// CommandValueType defines the expected type of command argument.
 type CommandValueType string
 
 const (
@@ -16,7 +18,7 @@ const (
 	CommandValueStringType CommandValueType = "string"
 	// CommandValueIntType expects a decimal integer (digits only).
 	CommandValueIntType CommandValueType = "int"
-	// CommandValueBoolType is reserved for future use (not implemented).
+	// CommandValueBoolType expects a exact "true" or "false".
 	CommandValueBoolType CommandValueType = "bool"
 	// CommandValueAnyType accepts any input without validation.
 	CommandValueAnyType CommandValueType = "any"
@@ -38,6 +40,11 @@ var ErrCmdArgCountMismatch = errors.New("command arg count mismatch")
 // ErrCmdArgRegexpMismatch is returned when an argument fails regex validation.
 var ErrCmdArgRegexpMismatch = errors.New("command arg regexp mismatch")
 
+var (
+	errCommandNotFound = errors.New("command not found")
+	errPayloadNotFound = errors.New("payload not found")
+)
+
 // CommandArg defines a single argument for a command, including type, regex,
 // and whether it is required.
 type CommandArg struct {
@@ -50,12 +57,12 @@ type CommandArg struct {
 // NewCommandArg creates a new CommandArg with the given text and type.
 // Uses a default regex based on the type (string or int).
 // For CommandValueAnyType, no validation is performed.
-func NewCommandArg(text string) *CommandArg {
-	return &CommandArg{CommandValueAnyType, text, CommandRegexString, false}
+func NewCommandArg(text string) CommandArg {
+	return CommandArg{CommandValueAnyType, text, CommandRegexString, false}
 }
 
 // SetValueType sets expected value type and switches built-in validation regexp.
-func (c *CommandArg) SetValueType(t CommandValueType) *CommandArg {
+func (c CommandArg) SetValueType(t CommandValueType) CommandArg {
 	regex := CommandRegexString
 	switch t {
 	case CommandValueIntType:
@@ -72,18 +79,19 @@ func (c *CommandArg) SetValueType(t CommandValueType) *CommandArg {
 
 // SetRequired marks this argument as required.
 // Returns the receiver for method chaining.
-func (c *CommandArg) SetRequired() *CommandArg {
+func (c CommandArg) SetRequired() CommandArg {
 	c.required = true
 	return c
 }
 
 // CommandExecutor is the function type that executes a command.
-// It receives the message context and a database context (generic).
-type CommandExecutor[T DbContext] func(ctx *MsgContext, dbContext *T)
+// It receives the message context and injected application data.
+// Returning a non-nil error routes it through the bot's error handler.
+type CommandExecutor[T AppData] func(ctx *MsgContext, dbContext T) error
 
 // Command represents a bot command with arguments, description, and executor.
 // Can be registered in a Plugin and optionally skipped from auto-generation.
-type Command[T DbContext] struct {
+type Command[T AppData] struct {
 	command     string                       // The command trigger (e.g., "/start")
 	description string                       // Human-readable description for help
 	exec        CommandExecutor[T]           // Function to execute when command is triggered
@@ -123,14 +131,12 @@ func (c *Command[T]) SkipCommandAutoGen() *Command[T] {
 	return c
 }
 
-// validateArgs checks if the provided arguments match the command's requirements.
-// Returns ErrCmdArgCountMismatch if too few arguments are provided.
-// Returns ErrCmdArgRegexpMismatch if any argument fails regex validation.
+// Internal helper that validates provided command arguments.
 func (c *Command[T]) validateArgs(args []string) error {
-	// Count required args
-	requiredCount := c.args.Filter(func(a CommandArg) bool { return a.required }).Len()
-	if len(args) < requiredCount {
-		return ErrCmdArgCountMismatch
+	for i := range c.args.Len() {
+		if i >= len(args) && c.args.Get(i).required {
+			return ErrCmdArgCountMismatch
+		}
 	}
 
 	// Validate each argument against its regex
@@ -156,32 +162,43 @@ func (c *Command[T]) validateArgs(args []string) error {
 // A Plugin is intended to be fully configured before it is passed to Bot.AddPlugins.
 // After registration, treat the plugin as committed and do not mutate it further.
 // Post-registration changes through the original *Plugin are not a supported API.
-type Plugin[T DbContext] struct {
+type Plugin[T AppData] struct {
 	name        string                       // Name of the plugin (e.g., "admin", "user")
 	commands    map[string]*Command[T]       // Registered commands (triggered by message)
 	payloads    map[string]*Command[T]       // Registered payloads (triggered by callback data)
+	scenes      map[string]*Scene[T]         // Optional scenes for multi-step interactions
 	middlewares extypes.Slice[Middleware[T]] // Shared middlewares for all commands/payloads
 	skipAutoCmd bool                         // If true, all commands in this plugin are excluded from auto-help
 	logger      *slog.Logger
 
+	handlers map[tgapi.UpdateType]CommandExecutor[T]
+
 	onClose func() error
 }
 
 // NewPlugin creates a new Plugin with the given name.
-func NewPlugin[T DbContext](name string) *Plugin[T] {
+func NewPlugin[T AppData](name string) *Plugin[T] {
 	return &Plugin[T]{
 		name:        name,
 		commands:    make(map[string]*Command[T]),
 		payloads:    make(map[string]*Command[T]),
 		middlewares: make(extypes.Slice[Middleware[T]], 0),
+		scenes:      make(map[string]*Scene[T]),
 		skipAutoCmd: false,
 		logger:      nil,
+		handlers:    make(map[tgapi.UpdateType]CommandExecutor[T]),
 	}
 }
 
 // AddCommand registers a command in the plugin.
 // The command's .command field is used as the key.
 func (p *Plugin[T]) AddCommand(command *Command[T]) *Plugin[T] {
+	if command == nil {
+		if p.logger != nil {
+			p.logger.Warnln("trying to add nil command")
+		}
+		return p
+	}
 	p.commands[command.command] = command
 	return p
 }
@@ -197,6 +214,12 @@ func (p *Plugin[T]) NewCommand(exec CommandExecutor[T], command string, args ...
 // AddPayload registers a payload (e.g., callback query data) in the plugin.
 // Payloads are triggered by inline button callback_data, not by message text.
 func (p *Plugin[T]) AddPayload(command *Command[T]) *Plugin[T] {
+	if command == nil {
+		if p.logger != nil {
+			p.logger.Warnln("trying to add nil command")
+		}
+		return p
+	}
 	p.payloads[command.command] = command
 	return p
 }
@@ -209,6 +232,49 @@ func (p *Plugin[T]) NewPayload(exec CommandExecutor[T], command string, args ...
 	return cmd
 }
 
+// AddScene registers a multi-step scene in the plugin.
+func (p *Plugin[T]) AddScene(scene *Scene[T]) *Plugin[T] {
+	if scene == nil {
+		return p
+	}
+	scene.PluginName = p.name
+	scene.setPluginName(p.name)
+	p.scenes[scene.Name] = scene
+	return p
+}
+
+// UsePolicy registers a Policy as plugin middleware for all plugin handlers.
+func (p *Plugin[T]) UsePolicy(name string, policy Policy[T]) *Plugin[T] {
+	mw := RequirePolicy(name, policy)
+	return p.AddMiddleware(mw)
+}
+
+// NewScene creates, registers, and returns a new scene owned by the plugin.
+func (p *Plugin[T]) NewScene(name string) *Scene[T] {
+	scene := NewScene[T](name)
+	scene.setPluginName(p.name)
+	p.AddScene(scene)
+	return scene
+}
+
+// AddUpdateHandler registers a handler for a non-command update type.
+// Message, channel post, and callback query updates stay on the command/payload flow.
+func (p *Plugin[T]) AddUpdateHandler(t tgapi.UpdateType, handler CommandExecutor[T]) *Plugin[T] {
+	switch t {
+	case tgapi.UpdateTypeMessage, tgapi.UpdateTypeChannelPost, tgapi.UpdateTypeCallbackQuery:
+		if p.logger == nil {
+			logger := utils.CreateLogger(p.name, utils.GetLoggerLevel())
+			logger.Warnf("%s can't be registred through AddUpdateHandler. Use AddPayload/NewPayload or AddCommand/NewCommand", t)
+			_ = logger.Close()
+			return p
+		}
+		p.logger.Warnf("%s can't be registred through AddUpdateHandler. Use AddPayload/NewPayload or AddCommand/NewCommand", t)
+		return p
+	}
+	p.handlers[t] = handler
+	return p
+}
+
 // AddMiddleware adds a middleware to the plugin's global middleware chain.
 // Middlewares are executed before any command or payload.
 func (p *Plugin[T]) AddMiddleware(middleware Middleware[T]) *Plugin[T] {
@@ -267,61 +333,52 @@ func (p *Plugin[T]) Close() error {
 	return errors.Join(e...)
 }
 
-// executeCmd finds and executes a command by its trigger string.
-// Validates arguments and runs middlewares before executor.
-// On error, sends an error message to the user via ctx.error().
-func (p *Plugin[T]) executeCmd(cmd string, ctx *MsgContext, dbContext *T) {
+// Internal helper that validates and executes a command handler.
+func (p *Plugin[T]) executeCmd(cmd string, ctx *MsgContext, db T) error {
 	command, exists := p.commands[cmd]
 	if !exists {
-		ctx.error(errors.New("command not found"))
-		return
+		return AsInternalError(errCommandNotFound)
 	}
 
 	if err := command.validateArgs(ctx.Args); err != nil {
-		ctx.error(err)
-		return
+		return AsUserError(err)
 	}
 
 	// Run command-specific middlewares
 	for _, m := range command.middlewares {
-		if !m.Execute(ctx, dbContext) {
-			return
+		if !m.Execute(ctx, db) {
+			return AsInternalError(errors.New("middleware blocked call"))
 		}
 	}
 
 	// Execute command
-	command.exec(ctx, dbContext)
+	return command.exec(ctx, db)
 }
 
-// executePayload finds and executes a payload by its callback_data string.
-// Validates arguments and runs middlewares before executor.
-// On error, sends an error message to the user via ctx.error().
-func (p *Plugin[T]) executePayload(payload string, ctx *MsgContext, dbContext *T) {
+// Internal helper that validates and executes a payload handler.
+func (p *Plugin[T]) executePayload(payload string, ctx *MsgContext, db T) error {
 	command, exists := p.payloads[payload]
 	if !exists {
-		ctx.error(errors.New("payload not found"))
-		return
+		return AsInternalError(errPayloadNotFound)
 	}
 
 	if err := command.validateArgs(ctx.Args); err != nil {
-		ctx.error(err)
-		return
+		return AsUserError(err)
 	}
 
 	// Run command-specific middlewares
 	for _, m := range command.middlewares {
-		if !m.Execute(ctx, dbContext) {
-			return
+		if !m.Execute(ctx, db) {
+			return AsInternalError(errors.New("middleware blocked call"))
 		}
 	}
 
 	// Execute payload
-	command.exec(ctx, dbContext)
+	return command.exec(ctx, db)
 }
 
-// executeMiddlewares runs all plugin middlewares in order.
-// Returns false if any middleware returns false (blocks execution).
-func (p *Plugin[T]) executeMiddlewares(ctx *MsgContext, db *T) bool {
+// Internal helper that runs plugin middlewares in order.
+func (p *Plugin[T]) executeMiddlewares(ctx *MsgContext, db T) bool {
 	for _, m := range p.middlewares {
 		if !m.Execute(ctx, db) {
 			return false
@@ -333,11 +390,11 @@ func (p *Plugin[T]) executeMiddlewares(ctx *MsgContext, db *T) bool {
 // MiddlewareExecutor is the function type for middleware logic.
 // Returns true to continue execution, false to block it.
 // If async, return value is ignored.
-type MiddlewareExecutor[T DbContext] func(ctx *MsgContext, db *T) bool
+type MiddlewareExecutor[T AppData] func(ctx *MsgContext, db T) bool
 
 // Middleware represents a reusable execution interceptor.
 // Can be synchronous (blocking) or asynchronous (non-blocking).
-type Middleware[T DbContext] struct {
+type Middleware[T AppData] struct {
 	name     string                // Human-readable name for logging/debugging
 	executor MiddlewareExecutor[T] // Function to execute
 	order    int                   // Optional sort order (not used yet)
@@ -345,19 +402,19 @@ type Middleware[T DbContext] struct {
 }
 
 // NewMiddleware creates a new synchronous middleware.
-func NewMiddleware[T DbContext](name string, executor MiddlewareExecutor[T]) *Middleware[T] {
-	return &Middleware[T]{name, executor, 0, false}
+func NewMiddleware[T AppData](name string, executor MiddlewareExecutor[T]) Middleware[T] {
+	return Middleware[T]{name, executor, 0, false}
 }
 
 // SetOrder sets the execution order (currently ignored).
-func (m *Middleware[T]) SetOrder(order int) *Middleware[T] {
+func (m Middleware[T]) SetOrder(order int) Middleware[T] {
 	m.order = order
 	return m
 }
 
 // SetAsync marks the middleware to run asynchronously.
 // Execution continues regardless of its return value.
-func (m *Middleware[T]) SetAsync(async bool) *Middleware[T] {
+func (m Middleware[T]) SetAsync(async bool) Middleware[T] {
 	m.async = async
 	return m
 }
@@ -365,7 +422,7 @@ func (m *Middleware[T]) SetAsync(async bool) *Middleware[T] {
 // Execute runs the middleware.
 // If async, runs in a goroutine and returns true immediately.
 // Otherwise, returns the result of the executor.
-func (m *Middleware[T]) Execute(ctx *MsgContext, db *T) bool {
+func (m Middleware[T]) Execute(ctx *MsgContext, db T) bool {
 	if m.async {
 		ctx := *ctx // copy context to avoid race condition
 		go func(ctx MsgContext) {

plugins_test.go

@@ -6,7 +6,7 @@ import (
 )
 
 func TestValidateArgsRequiresFullMatch(t *testing.T) {
-	intCmd := NewCommand[NoDB](func(ctx *MsgContext, db *NoDB) {}, "int", *NewCommandArg("n").SetValueType(CommandValueIntType).SetRequired())
+	intCmd := NewCommand[NoData](func(ctx *MsgContext, db NoData) error { return nil }, "int", NewCommandArg("n").SetValueType(CommandValueIntType).SetRequired())
 	if err := intCmd.validateArgs([]string{"123"}); err != nil {
 		t.Fatalf("expected valid integer argument, got %v", err)
 	}
@@ -14,7 +14,7 @@ func TestValidateArgsRequiresFullMatch(t *testing.T) {
 		t.Fatalf("expected ErrCmdArgRegexpMismatch for partial int match, got %v", err)
 	}
 
-	boolCmd := NewCommand[NoDB](func(ctx *MsgContext, db *NoDB) {}, "bool", *NewCommandArg("flag").SetValueType(CommandValueBoolType).SetRequired())
+	boolCmd := NewCommand[NoData](func(ctx *MsgContext, db NoData) error { return nil }, "bool", NewCommandArg("flag").SetValueType(CommandValueBoolType).SetRequired())
 	if err := boolCmd.validateArgs([]string{"false"}); err != nil {
 		t.Fatalf("expected valid bool argument, got %v", err)
 	}
@@ -22,3 +22,19 @@ func TestValidateArgsRequiresFullMatch(t *testing.T) {
 		t.Fatalf("expected ErrCmdArgRegexpMismatch for partial bool match, got %v", err)
 	}
 }
+
+func TestValidateArgsEnforcesRequiredArgIndex(t *testing.T) {
+	cmd := NewCommand[NoData](
+		func(ctx *MsgContext, db NoData) error { return nil },
+		"mixed",
+		NewCommandArg("optional"),
+		NewCommandArg("required").SetRequired(),
+	)
+
+	if err := cmd.validateArgs([]string{"only-optional"}); !errors.Is(err, ErrCmdArgCountMismatch) {
+		t.Fatalf("expected ErrCmdArgCountMismatch when required second arg is missing, got %v", err)
+	}
+	if err := cmd.validateArgs([]string{"optional", "required"}); err != nil {
+		t.Fatalf("expected both args to validate, got %v", err)
+	}
+}

policy.go

@@ -0,0 +1,224 @@
+package laniakea
+
+import (
+	"errors"
+	"fmt"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+)
+
+// Policy defines a reusable authorization rule for the current update context.
+type Policy[T AppData] func(ctx *MsgContext, data T) error
+
+// RequirePolicy adapts a Policy into a blocking middleware.
+func RequirePolicy[T AppData](name string, p Policy[T]) Middleware[T] {
+	return NewMiddleware(name, func(ctx *MsgContext, data T) bool {
+		if err := p(ctx, data); err != nil {
+			ctx.emitPolicyChecked(PolicyCheckedEvent{
+				Name:     name,
+				FromID:   ctx.FromID,
+				ChatID:   ctx.ChatID,
+				Passed:   false,
+				Err:      err,
+				Internal: IsInternalError(err),
+			})
+			ctx.error(err)
+			return false
+		}
+		ctx.emitPolicyChecked(PolicyCheckedEvent{
+			Name:   name,
+			FromID: ctx.FromID,
+			ChatID: ctx.ChatID,
+			Passed: true,
+		})
+		return true
+	})
+}
+
+// AllPolicies composes policies that all must succeed.
+func AllPolicies[T AppData](policies ...Policy[T]) Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		for _, p := range policies {
+			if err := p(ctx, data); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+}
+
+// AnyPolicy composes policies where at least one must succeed.
+func AnyPolicy[T AppData](policies ...Policy[T]) Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		var firstDeny error
+		var internalErr error
+		for _, p := range policies {
+			err := p(ctx, data)
+			if err == nil {
+				return nil
+			}
+			if IsInternalError(err) {
+				if internalErr == nil {
+					internalErr = err
+				}
+				continue
+			}
+			if firstDeny == nil {
+				firstDeny = err
+			}
+		}
+		if internalErr != nil {
+			return internalErr
+		}
+		if firstDeny != nil {
+			return firstDeny
+		}
+		return AsUserError(errors.New("no policy matched"))
+	}
+}
+
+// NotPolicy inverts a policy deny result while preserving internal failures.
+func NotPolicy[T AppData](policy Policy[T]) Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		var err error
+		if err = policy(ctx, data); err == nil {
+			return AsUserError(errors.New("the action is not allowed due to policy violation"))
+		}
+		if IsInternalError(err) {
+			return err
+		}
+		return nil
+	}
+}
+
+// RequirePrivateChat allows execution only in private chats.
+func RequirePrivateChat[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.Msg == nil || ctx.Msg.Chat == nil {
+			return AsInternalError(errors.New("private-chat policy requires message chat context"))
+		}
+
+		if ctx.Msg.Chat.Type != tgapi.ChatTypePrivate {
+			return AsUserError(errors.New("this action is only available in private chat"))
+		}
+
+		return nil
+	}
+}
+
+// RequireGroupChat allows execution only in group or supergroup chats.
+func RequireGroupChat[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.Msg == nil || ctx.Msg.Chat == nil {
+			return AsInternalError(errors.New("group-chat policy requires message chat context"))
+		}
+
+		if ctx.Msg.Chat.Type != tgapi.ChatTypeGroup && ctx.Msg.Chat.Type != tgapi.ChatTypeSupergroup {
+			return AsUserError(errors.New("this action is only available in group chats"))
+		}
+
+		return nil
+	}
+}
+
+// RequireSupergroupChat allows execution only in supergroup chats.
+func RequireSupergroupChat[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.Msg == nil || ctx.Msg.Chat == nil {
+			return AsInternalError(errors.New("supergroup-chat policy requires message chat context"))
+		}
+
+		if ctx.Msg.Chat.Type != tgapi.ChatTypeSupergroup {
+			return AsUserError(errors.New("this action is only available in supergroup chats"))
+		}
+
+		return nil
+	}
+}
+
+// RequireChatAdmin allows execution only for chat administrators or owners.
+func RequireChatAdmin[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.FromID == 0 || ctx.ChatID == 0 {
+			return AsInternalError(errors.New("chat-admin policy requires message chat context"))
+		}
+
+		member, err := ctx.Api.GetChatMember(tgapi.GetChatMember{
+			ChatID: ctx.ChatID,
+			UserID: ctx.FromID,
+		})
+		if err != nil {
+			return AsInternalError(fmt.Errorf("failed to fetch chat member status: %w", err))
+		}
+
+		if member.Status != tgapi.ChatMemberStatusAdministrator && member.Status != tgapi.ChatMemberStatusOwner {
+			return AsUserError(errors.New("this action is only available to chat admins"))
+		}
+
+		return nil
+	}
+}
+
+// RequireChatCreator allows execution only for the chat owner.
+func RequireChatCreator[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.FromID == 0 || ctx.ChatID == 0 {
+			return AsInternalError(errors.New("chat-creator policy requires message chat context"))
+		}
+
+		member, err := ctx.Api.GetChatMember(tgapi.GetChatMember{
+			ChatID: ctx.ChatID,
+			UserID: ctx.FromID,
+		})
+		if err != nil {
+			return AsInternalError(fmt.Errorf("failed to fetch chat creator: %w", err))
+		}
+
+		if member.Status != tgapi.ChatMemberStatusOwner {
+			return AsUserError(errors.New("this action is only available to the chat creator"))
+		}
+
+		return nil
+	}
+}
+
+// RequireBotAdmin allows execution only when the bot is an admin in the chat.
+func RequireBotAdmin[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.ChatID == 0 {
+			return AsInternalError(errors.New("bot-admin policy requires message chat context"))
+		}
+
+		bot, err := ctx.Api.GetMe()
+		if err != nil {
+			return AsInternalError(fmt.Errorf("failed to fetch bot info: %w", err))
+		}
+
+		member, err := ctx.Api.GetChatMember(tgapi.GetChatMember{
+			ChatID: ctx.ChatID,
+			UserID: bot.ID,
+		})
+		if err != nil {
+			return AsInternalError(fmt.Errorf("failed to fetch bot member status: %w", err))
+		}
+
+		if member.Status != tgapi.ChatMemberStatusAdministrator && member.Status != tgapi.ChatMemberStatusOwner {
+			return AsUserError(errors.New("this action requires the bot to be an admin in the chat"))
+		}
+
+		return nil
+	}
+}
+
+// RequireCallbackFromUser allows execution only for callback queries sent by non-bot users.
+func RequireCallbackFromUser[T AppData]() Policy[T] {
+	return func(ctx *MsgContext, data T) error {
+		if ctx.Update.CallbackQuery == nil {
+			return AsInternalError(errors.New("callback-user policy requires callback query context"))
+		}
+		if ctx.Update.CallbackQuery.From.IsBot {
+			return AsUserError(errors.New("this action is only available to human users"))
+		}
+		return nil
+	}
+}

policy_test.go

@@ -0,0 +1,281 @@
+package laniakea
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+func TestRequirePolicyStopsExecutionOnDeniedPolicy(t *testing.T) {
+	var requests int
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			requests++
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":{"message_id":9,"date":1}}`)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:           api,
+		Msg:           &tgapi.Message{Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate}},
+		Logger:        slog.CreateLogger(),
+		errorTemplate: "Error: %s",
+	}
+
+	mw := RequirePolicy[NoData]("deny", func(ctx *MsgContext, data NoData) error {
+		return AsUserError(errors.New("blocked"))
+	})
+
+	if mw.Execute(ctx, NoData{}) {
+		t.Fatal("expected denied policy middleware to stop execution")
+	}
+	if requests != 1 {
+		t.Fatalf("expected one user-facing error reply, got %d requests", requests)
+	}
+	if got := gotBody["text"]; got != "Error: blocked" {
+		t.Fatalf("unexpected policy error reply text: %v", got)
+	}
+}
+
+func TestRequirePrivateChatAllowsPrivateChat(t *testing.T) {
+	ctx := &MsgContext{
+		Msg: &tgapi.Message{
+			Chat: &tgapi.Chat{ID: 42, Type: tgapi.ChatTypePrivate},
+		},
+		Logger: slog.CreateLogger(),
+	}
+
+	if err := RequirePrivateChat[NoData]()(ctx, NoData{}); err != nil {
+		t.Fatalf("RequirePrivateChat returned error: %v", err)
+	}
+}
+
+func TestRequirePrivateChatDeniesNonPrivateChat(t *testing.T) {
+	ctx := &MsgContext{
+		Msg: &tgapi.Message{
+			Chat: &tgapi.Chat{ID: -100, Type: tgapi.ChatTypeSupergroup},
+		},
+		Logger: slog.CreateLogger(),
+	}
+
+	err := RequirePrivateChat[NoData]()(ctx, NoData{})
+	if err == nil {
+		t.Fatal("expected RequirePrivateChat to deny non-private chats")
+	}
+	if !IsUserError(err) {
+		t.Fatalf("expected user-visible deny error, got %v", err)
+	}
+}
+
+func TestRequireChatAdminUsesNormalizedIDs(t *testing.T) {
+	var sawGetChatMember bool
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			if !strings.Contains(req.URL.Path, "getChatMember") {
+				t.Fatalf("unexpected API method: %s", req.URL.Path)
+			}
+			sawGetChatMember = true
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body: io.NopCloser(strings.NewReader(
+					`{"ok":true,"result":{"status":"administrator","user":{"id":55,"is_bot":false,"first_name":"tester"}}}`,
+				)),
+			}, nil
+		}),
+	}
+
+	api := tgapi.NewAPI(
+		tgapi.NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	ctx := &MsgContext{
+		Api:    api,
+		ChatID: -2001,
+		FromID: 55,
+		Logger: slog.CreateLogger(),
+	}
+
+	if err := RequireChatAdmin[NoData]()(ctx, NoData{}); err != nil {
+		t.Fatalf("RequireChatAdmin returned error: %v", err)
+	}
+	if !sawGetChatMember {
+		t.Fatal("expected GetChatMember to be called")
+	}
+	if got := gotBody["chat_id"]; got != float64(-2001) {
+		t.Fatalf("unexpected chat_id in request: %v", got)
+	}
+	if got := gotBody["user_id"]; got != float64(55) {
+		t.Fatalf("unexpected user_id in request: %v", got)
+	}
+}
+
+func TestAllPoliciesReturnsFirstError(t *testing.T) {
+	want := AsUserError(errors.New("blocked"))
+	policy := AllPolicies[NoData](
+		func(ctx *MsgContext, data NoData) error { return nil },
+		func(ctx *MsgContext, data NoData) error { return want },
+		func(ctx *MsgContext, data NoData) error {
+			t.Fatal("unexpected evaluation after first failure")
+			return nil
+		},
+	)
+
+	err := policy(&MsgContext{Logger: slog.CreateLogger()}, NoData{})
+	if !errors.Is(err, want) {
+		t.Fatalf("expected first policy error, got %v", err)
+	}
+}
+
+func TestAnyPolicyAllowsLaterSuccessAfterInternalError(t *testing.T) {
+	policy := AnyPolicy[NoData](
+		func(ctx *MsgContext, data NoData) error { return AsInternalError(errors.New("temporary")) },
+		func(ctx *MsgContext, data NoData) error { return nil },
+	)
+
+	if err := policy(&MsgContext{Logger: slog.CreateLogger()}, NoData{}); err != nil {
+		t.Fatalf("expected later success to allow access, got %v", err)
+	}
+}
+
+func TestAnyPolicyReturnsInternalErrorWhenNonePass(t *testing.T) {
+	internal := AsInternalError(errors.New("temporary"))
+	policy := AnyPolicy[NoData](
+		func(ctx *MsgContext, data NoData) error { return AsUserError(errors.New("denied")) },
+		func(ctx *MsgContext, data NoData) error { return internal },
+	)
+
+	err := policy(&MsgContext{Logger: slog.CreateLogger()}, NoData{})
+	if !errors.Is(err, internal) {
+		t.Fatalf("expected internal error, got %v", err)
+	}
+}
+
+func TestAnyPolicyReturnsFirstDenyWhenNoPolicyPasses(t *testing.T) {
+	first := AsUserError(errors.New("first deny"))
+	policy := AnyPolicy[NoData](
+		func(ctx *MsgContext, data NoData) error { return first },
+		func(ctx *MsgContext, data NoData) error { return AsUserError(errors.New("second deny")) },
+	)
+
+	err := policy(&MsgContext{Logger: slog.CreateLogger()}, NoData{})
+	if !errors.Is(err, first) {
+		t.Fatalf("expected first deny error, got %v", err)
+	}
+}
+
+func TestNotPolicyInvertsUserDenyButPreservesInternalErrors(t *testing.T) {
+	inverted := NotPolicy[NoData](func(ctx *MsgContext, data NoData) error {
+		return AsUserError(errors.New("denied"))
+	})
+	if err := inverted(&MsgContext{Logger: slog.CreateLogger()}, NoData{}); err != nil {
+		t.Fatalf("expected inverted deny to succeed, got %v", err)
+	}
+
+	internal := AsInternalError(errors.New("temporary"))
+	preserve := NotPolicy[NoData](func(ctx *MsgContext, data NoData) error {
+		return internal
+	})
+	err := preserve(&MsgContext{Logger: slog.CreateLogger()}, NoData{})
+	if !errors.Is(err, internal) {
+		t.Fatalf("expected internal error to be preserved, got %v", err)
+	}
+}
+
+func TestRequirePolicyEmitsObserverEvents(t *testing.T) {
+	t.Run("allow", func(t *testing.T) {
+		observer := &recordingObserver{}
+		ctx := &MsgContext{
+			Logger:   slog.CreateLogger(),
+			ctx:      context.Background(),
+			observer: observer,
+			FromID:   10,
+			ChatID:   20,
+		}
+
+		mw := RequirePolicy[NoData]("allow", func(ctx *MsgContext, data NoData) error {
+			return nil
+		})
+
+		if !mw.Execute(ctx, NoData{}) {
+			t.Fatal("expected allowed policy middleware to continue execution")
+		}
+		if len(observer.policies) != 1 {
+			t.Fatalf("expected one policy event, got %d", len(observer.policies))
+		}
+		if got := observer.policies[0]; got.Name != "allow" || !got.Passed || got.Err != nil || got.Internal {
+			t.Fatalf("unexpected policy event: %#v", got)
+		}
+	})
+
+	t.Run("deny", func(t *testing.T) {
+		observer := &recordingObserver{}
+		ctx := &MsgContext{
+			Logger:        slog.CreateLogger(),
+			ctx:           context.Background(),
+			observer:      observer,
+			errorTemplate: "%s",
+		}
+
+		mw := RequirePolicy[NoData]("deny", func(ctx *MsgContext, data NoData) error {
+			return AsInternalError(errors.New("blocked"))
+		})
+
+		if mw.Execute(ctx, NoData{}) {
+			t.Fatal("expected denied policy middleware to stop execution")
+		}
+		if len(observer.policies) != 1 {
+			t.Fatalf("expected one policy event, got %d", len(observer.policies))
+		}
+		if got := observer.policies[0]; got.Name != "deny" || got.Passed || got.Err == nil || !got.Internal {
+			t.Fatalf("unexpected policy event: %#v", got)
+		}
+	})
+}

runners.go

@@ -7,7 +7,7 @@ import (
 
 // RunnerFn is the function type for a runner. It receives a pointer to
 // the Bot and returns an error if execution fails.
-type RunnerFn[T DbContext] func(*Bot[T]) error
+type RunnerFn[T AppData] func(*Bot[T]) error
 
 // Runner represents a configurable background or one-time task to be
 // executed by a Bot.
@@ -20,7 +20,7 @@ type RunnerFn[T DbContext] func(*Bot[T]) error
 //   - onetime=true, async=true:  Run once in a goroutine (non-blocking).
 //   - onetime=false, async=true: Run repeatedly in a goroutine with timeout.
 //   - onetime=false, async=false: Invalid configuration — ignored with warning.
-type Runner[T DbContext] struct {
+type Runner[T AppData] struct {
 	name    string        // Human-readable name for logging
 	onetime bool          // If true, runs once; if false, runs periodically
 	async   bool          // If true, runs in a goroutine; else, runs synchronously
@@ -33,8 +33,8 @@ type Runner[T DbContext] struct {
 //
 // Builder methods (Onetime, Async, Timeout) can be chained to customize behavior.
 // DO NOT call builder methods concurrently or after Execute().
-func NewRunner[T DbContext](name string, fn RunnerFn[T]) *Runner[T] {
-	return &Runner[T]{
+func NewRunner[T AppData](name string, fn RunnerFn[T]) Runner[T] {
+	return Runner[T]{
 		name:    name,
 		fn:      fn,
 		async:   true, // Default: run asynchronously
@@ -45,7 +45,7 @@ func NewRunner[T DbContext](name string, fn RunnerFn[T]) *Runner[T] {
 // Onetime sets whether the runner executes once or repeatedly.
 // If true, the runner runs only once.
 // If false, the runner runs in a loop with the configured timeout.
-func (r *Runner[T]) Onetime(onetime bool) *Runner[T] {
+func (r Runner[T]) Onetime(onetime bool) Runner[T] {
 	r.onetime = onetime
 	return r
 }
@@ -55,7 +55,7 @@ func (r *Runner[T]) Onetime(onetime bool) *Runner[T] {
 // If false, the runner blocks the caller during execution.
 //
 // Note: If onetime=false and async=false, the runner will be skipped with a warning.
-func (r *Runner[T]) Async(async bool) *Runner[T] {
+func (r Runner[T]) Async(async bool) Runner[T] {
 	r.async = async
 	return r
 }
@@ -69,7 +69,7 @@ func (r *Runner[T]) Async(async bool) *Runner[T] {
 //
 // A zero value (time.Duration(0)) is allowed but may trigger a warning
 // if used with a background (non-onetime) async runner.
-func (r *Runner[T]) Timeout(timeout time.Duration) *Runner[T] {
+func (r Runner[T]) Timeout(timeout time.Duration) Runner[T] {
 	r.timeout = timeout
 	return r
 }
@@ -88,7 +88,8 @@ func (r *Runner[T]) Timeout(timeout time.Duration) *Runner[T] {
 //
 // Background runners listen for ctx.Done() and gracefully shut down when the context is canceled.
 //
-// This method is typically called once during bot startup in RunWithContext.
+// This method is typically called once during bot startup from RunWithContext or
+// RunWebHookWithContext.
 func (bot *Bot[T]) ExecRunners(ctx context.Context) {
 	bot.logger.Infoln("Executing runners...")
 	for _, runner := range bot.runners {
@@ -107,8 +108,21 @@ func (bot *Bot[T]) ExecRunners(ctx context.Context) {
 			bot.runnerOnceWG.Add(1)
 			go func(r Runner[T]) {
 				defer bot.runnerOnceWG.Done()
+				startedAt := time.Now()
 				err := r.fn(bot)
+				bot.safeEmitEvent(ctx, RunnerFinishedEvent{
+					Name:     r.name,
+					Duration: time.Since(startedAt),
+					Err:      err,
+				})
 				if err != nil {
+					bot.safeEmitEvent(ctx, ErrorEvent{
+						Plugin:      "bot",
+						HandlerKind: HandlerRunnerKind,
+						HandlerName: r.name,
+						Err:         err,
+						UserFacing:  false,
+					})
 					bot.logger.Warnf("Runner %s failed: %s\n", r.name, err)
 				}
 			}(runner)
@@ -116,10 +130,22 @@ func (bot *Bot[T]) ExecRunners(ctx context.Context) {
 			// One-time sync: block until done
 			t := time.Now()
 			err := runner.fn(bot)
+			elapsed := time.Since(t)
+			bot.safeEmitEvent(ctx, RunnerFinishedEvent{
+				Name:     runner.name,
+				Duration: elapsed,
+				Err:      err,
+			})
 			if err != nil {
+				bot.safeEmitEvent(ctx, ErrorEvent{
+					Plugin:      "bot",
+					HandlerKind: HandlerRunnerKind,
+					HandlerName: runner.name,
+					Err:         err,
+					UserFacing:  false,
+				})
 				bot.logger.Warnf("Runner %s failed: %s\n", runner.name, err)
 			}
-			elapsed := time.Since(t)
 			if elapsed > time.Second*2 {
 				bot.logger.Warnf("Runner %s too slow. Elapsed time %v >= 2s\n", runner.name, elapsed)
 			}
@@ -135,8 +161,21 @@ func (bot *Bot[T]) ExecRunners(ctx context.Context) {
 					case <-ctx.Done():
 						return
 					case <-ticker.C:
+						startedAt := time.Now()
 						err := r.fn(bot)
+						bot.safeEmitEvent(ctx, RunnerFinishedEvent{
+							Name:     r.name,
+							Duration: time.Since(startedAt),
+							Err:      err,
+						})
 						if err != nil {
+							bot.safeEmitEvent(ctx, ErrorEvent{
+								Plugin:      "bot",
+								HandlerKind: HandlerRunnerKind,
+								HandlerName: r.name,
+								Err:         err,
+								UserFacing:  false,
+							})
 							bot.logger.Warnf("Runner %s failed: %s\n", r.name, err)
 						}
 					}

runners_test.go

@@ -0,0 +1,97 @@
+package laniakea
+
+import (
+	"context"
+	"errors"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+type runnerObserver struct {
+	recordingObserver
+}
+
+func TestExecRunnersRunsOnetimeSyncRunner(t *testing.T) {
+	var calls atomic.Int32
+	bot := &Bot[NoData]{
+		logger: slog.CreateLogger(),
+		runners: []Runner[NoData]{
+			NewRunner("sync-once", func(*Bot[NoData]) error {
+				calls.Add(1)
+				return nil
+			}).Onetime(true).Async(false),
+		},
+	}
+
+	bot.ExecRunners(context.Background())
+
+	if got := calls.Load(); got != 1 {
+		t.Fatalf("unexpected sync runner call count: %d", got)
+	}
+}
+
+func TestExecRunnersStopsBackgroundRunnerOnCancel(t *testing.T) {
+	var calls atomic.Int32
+	triggered := make(chan struct{}, 1)
+	ctx, cancel := context.WithCancel(context.Background())
+
+	bot := &Bot[NoData]{
+		logger: slog.CreateLogger(),
+		runners: []Runner[NoData]{
+			NewRunner("background", func(*Bot[NoData]) error {
+				if calls.Add(1) == 1 {
+					triggered <- struct{}{}
+				}
+				return nil
+			}).Timeout(5 * time.Millisecond),
+		},
+	}
+
+	bot.ExecRunners(ctx)
+
+	select {
+	case <-triggered:
+	case <-time.After(time.Second):
+		t.Fatal("background runner did not execute")
+	}
+
+	cancel()
+	bot.runnerBgWG.Wait()
+
+	if calls.Load() == 0 {
+		t.Fatal("expected background runner to be called at least once")
+	}
+}
+
+func TestExecRunnersEmitObserverEvents(t *testing.T) {
+	observer := &runnerObserver{}
+	wantErr := errors.New("runner failed")
+
+	bot := &Bot[NoData]{
+		logger:   slog.CreateLogger(),
+		observer: observer,
+		runners: []Runner[NoData]{
+			NewRunner("sync-once", func(*Bot[NoData]) error {
+				return wantErr
+			}).Onetime(true).Async(false),
+		},
+	}
+
+	bot.ExecRunners(context.Background())
+
+	if len(observer.runners) != 1 {
+		t.Fatalf("expected one runner-finished event, got %d", len(observer.runners))
+	}
+	if got := observer.runners[0]; got.Name != "sync-once" || !errors.Is(got.Err, wantErr) {
+		t.Fatalf("unexpected runner-finished event: %#v", got)
+	}
+	if len(observer.errors) != 1 {
+		t.Fatalf("expected one error event, got %d", len(observer.errors))
+	}
+	if got := observer.errors[0]; got.HandlerKind != HandlerRunnerKind || got.HandlerName != "sync-once" || !errors.Is(got.Err, wantErr) {
+		t.Fatalf("unexpected runner error event: %#v", got)
+	}
+}

scene.go

@@ -0,0 +1,238 @@
+package laniakea
+
+import (
+	"encoding/json"
+	"sync"
+)
+
+// SceneHandler handles a scene step, scene command, or fallback message.
+type SceneHandler[T any] func(ctx *SceneContext, db T) (SceneResult, error)
+
+// Scene defines a multi-step conversational flow.
+type Scene[T any] struct {
+	// Name identifies the scene in plugin registration and session state.
+	Name string
+	// Scope controls how active scene sessions are keyed and shared.
+	Scope SceneScope
+	// Entry names the first step used by MsgContext.EnterScene.
+	Entry string
+	// PluginName stores the owning plugin name for scene resolution.
+	PluginName string
+
+	steps    map[string]SceneHandler[T]
+	commands map[string]SceneHandler[T]
+	message  SceneHandler[T]
+}
+
+// NewScene creates a new scene with user-chat scope by default.
+func NewScene[T any](name string) *Scene[T] {
+	return &Scene[T]{
+		Name:     name,
+		Scope:    SceneScopeUserChat,
+		Entry:    "",
+		steps:    make(map[string]SceneHandler[T]),
+		commands: make(map[string]SceneHandler[T]),
+		message:  nil,
+	}
+}
+
+// SetScope changes how scene sessions are keyed and shared.
+func (s *Scene[T]) SetScope(scope SceneScope) *Scene[T] {
+	s.Scope = scope
+	return s
+}
+
+// SetEntry sets the initial step entered by MsgContext.EnterScene.
+func (s *Scene[T]) SetEntry(step string) *Scene[T] {
+	s.Entry = step
+	return s
+}
+
+func (s *Scene[T]) setPluginName(name string) *Scene[T] {
+	s.PluginName = name
+	return s
+}
+
+// OnStep registers a handler for a named scene step.
+func (s *Scene[T]) OnStep(step string, handler SceneHandler[T]) *Scene[T] {
+	s.steps[step] = handler
+	return s
+}
+
+// OnCommand registers a command handler active while the scene is running.
+func (s *Scene[T]) OnCommand(cmd string, handler SceneHandler[T]) *Scene[T] {
+	s.commands[cmd] = handler
+	return s
+}
+
+// OnMessage registers a fallback handler used when no scene command or step matches.
+func (s *Scene[T]) OnMessage(handler SceneHandler[T]) *Scene[T] {
+	s.message = handler
+	return s
+}
+
+func (s *Scene[T]) executeCommand(cmd string, ctx *SceneContext, db T) (SceneResult, bool, error) {
+	handler, ok := s.commands[cmd]
+	if !ok {
+		return SceneResult{}, false, nil
+	}
+	result, err := handler(ctx, db)
+	return result, true, err
+}
+func (s *Scene[T]) executeStep(step string, ctx *SceneContext, db T) (SceneResult, bool, error) {
+	handler, ok := s.steps[step]
+	if !ok {
+		return SceneResult{}, false, nil
+	}
+	result, err := handler(ctx, db)
+	return result, true, err
+}
+func (s *Scene[T]) executeMessage(ctx *SceneContext, db T) (SceneResult, bool, error) {
+	if s.message == nil {
+		return SceneResult{}, false, nil
+	}
+	result, err := s.message(ctx, db)
+	return result, true, err
+}
+
+// SceneSession stores the active scene state for one session key.
+type SceneSession struct {
+	// Scene is the registered scene name for the active session.
+	Scene string
+	// Step is the current step name inside the active scene.
+	Step string
+	// Data stores opaque session payload bytes, typically JSON.
+	Data []byte
+}
+
+// SetData stores arbitrary opaque session data.
+func (s *SceneSession) SetData(data []byte) {
+	s.Data = data
+}
+
+// GetData returns the raw session data payload.
+func (s *SceneSession) GetData() []byte {
+	return s.Data
+}
+
+// HasData reports whether the session has a non-empty data payload.
+func (s *SceneSession) HasData() bool {
+	return len(s.Data) > 0
+}
+
+// ClearData removes any stored session data.
+func (s *SceneSession) ClearData() {
+	s.Data = nil
+}
+
+// BindData unmarshals the stored JSON payload into v.
+func (s *SceneSession) BindData(v any) error {
+	if len(s.Data) == 0 {
+		return nil
+	}
+	return json.Unmarshal(s.Data, v)
+}
+
+// SaveData marshals v as JSON and stores it in the session.
+func (s *SceneSession) SaveData(v any) error {
+	data, err := json.Marshal(v)
+	if err != nil {
+		return err
+	}
+	s.Data = data
+	return nil
+}
+
+// SessionStore persists scene sessions by key.
+type SessionStore interface {
+	Get(key string) (SceneSession, error)
+	Set(key string, session SceneSession) error
+	Delete(key string) error
+}
+
+// MemorySessionStore stores scene sessions in memory.
+type MemorySessionStore struct {
+	store map[string]SceneSession
+	mu    sync.RWMutex
+}
+
+// NewMemorySessionStore creates an empty in-memory session store.
+func NewMemorySessionStore() *MemorySessionStore {
+	return &MemorySessionStore{
+		store: make(map[string]SceneSession),
+	}
+}
+
+// Get returns the session stored under key, or the zero session when absent.
+func (s *MemorySessionStore) Get(key string) (SceneSession, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	if session, ok := s.store[key]; ok {
+		return session, nil
+	}
+	return SceneSession{}, nil
+}
+
+// Set stores session under key.
+func (s *MemorySessionStore) Set(key string, session SceneSession) error {
+	s.mu.Lock()
+	s.store[key] = session
+	s.mu.Unlock()
+	return nil
+}
+
+// Delete removes the session stored under key.
+func (s *MemorySessionStore) Delete(key string) error {
+	s.mu.Lock()
+	delete(s.store, key)
+	s.mu.Unlock()
+	return nil
+}
+
+// SceneResult describes how scene execution should proceed after a handler returns.
+type SceneResult struct {
+	Action SceneAction
+	Next   string
+}
+
+// SceneAction controls how the bot updates scene state after a handler returns.
+type SceneAction int
+
+const (
+	// SceneActionStay keeps the current scene and step active.
+	SceneActionStay SceneAction = iota
+	// SceneActionNext moves the session to another named step.
+	SceneActionNext
+	// SceneActionExit removes the current scene session.
+	SceneActionExit
+	// SceneActionPass lets normal bot routing continue after the scene handler.
+	SceneActionPass
+)
+
+// SceneScope defines how scene sessions are keyed.
+type SceneScope int
+
+const (
+	// SceneScopeUser shares a scene across all chats for one user.
+	SceneScopeUser SceneScope = iota
+	// SceneScopeChat shares a scene across all users in one chat.
+	SceneScopeChat
+	// SceneScopeUserChat isolates a scene per user-chat pair.
+	SceneScopeUserChat
+)
+
+type sceneRuntime interface {
+	findScene(name string) (*sceneMeta, bool)
+	getSession(key string) (SceneSession, error)
+	setSession(key string, session SceneSession) error
+	deleteSession(key string) error
+	buildSceneKey(scope SceneScope, ctx *MsgContext) (string, bool)
+	findSceneSession(ctx *MsgContext) (string, SceneSession, error)
+}
+
+type sceneMeta struct {
+	Name  string
+	Scope SceneScope
+	Entry string
+	Steps map[string]struct{}
+}

scene_context.go

@@ -0,0 +1,41 @@
+package laniakea
+
+// SceneContext wraps MsgContext with scene session state for scene handlers.
+type SceneContext struct {
+	*MsgContext
+	sess SceneSession
+	key  string
+}
+
+// Next advances the current scene to step.
+func (ctx *SceneContext) Next(step string) SceneResult {
+	return SceneResult{
+		Action: SceneActionNext,
+		Next:   step,
+	}
+}
+
+// Stay keeps the current scene step active.
+func (ctx *SceneContext) Stay() SceneResult {
+	return SceneResult{Action: SceneActionStay}
+}
+
+// Exit leaves the current scene.
+func (ctx *SceneContext) Exit() SceneResult {
+	return SceneResult{Action: SceneActionExit}
+}
+
+// Pass stops scene handling and lets normal routing continue.
+func (ctx *SceneContext) Pass() SceneResult {
+	return SceneResult{Action: SceneActionPass}
+}
+
+// BindData unmarshals the current scene session payload into v.
+func (ctx *SceneContext) BindData(v any) error {
+	return ctx.sess.BindData(v)
+}
+
+// SaveData marshals v and stores it in the current scene session payload.
+func (ctx *SceneContext) SaveData(v any) error {
+	return ctx.sess.SaveData(v)
+}

scene_handler.go

@@ -0,0 +1,255 @@
+package laniakea
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+)
+
+func (bot *Bot[T]) tryHandleScene(ctx *MsgContext) (bool, error) {
+	key, session, err := bot.findSceneSession(ctx)
+	if err != nil {
+		if errors.Is(err, ErrCantFindSession) || errors.Is(err, ErrMessageNil) {
+			return false, nil
+		}
+		return false, err
+	}
+	if session.Scene == "" {
+		return false, nil
+	}
+
+	for _, plugin := range bot.plugins {
+		scene, ok := plugin.scenes[session.Scene]
+		if !ok {
+			continue
+		}
+		if scene.PluginName != "" && scene.PluginName != plugin.name {
+			continue
+		}
+		if !plugin.executeMiddlewares(ctx, bot.appData) {
+			return false, nil
+		}
+		sceneCtx := &SceneContext{
+			MsgContext: ctx,
+			sess:       session,
+			key:        key,
+		}
+
+		return bot.executeScene(sceneCtx, scene)
+	}
+	return false, ErrSceneNotFound
+}
+
+func (bot *Bot[T]) executeScene(ctx *SceneContext, scene *Scene[T]) (bool, error) {
+	if ctx.MsgContext == nil || ctx.sess.Scene == "" {
+		return false, nil
+	}
+
+	var text string
+	if ctx.Msg != nil {
+		text = ctx.Msg.Text
+		if text == "" {
+			text = ctx.Msg.Caption
+		}
+	}
+
+	text = strings.TrimSpace(text)
+	prefix, cmd, args := bot.parseCommand(text)
+	if cmd != "" {
+		ctx.Prefix = prefix
+		ctx.Text = args
+		ctx.Args = strings.Fields(args)
+
+		if _, ok := scene.commands[cmd]; ok {
+			startTime := time.Now()
+			bot.emitSceneStarted(ctx, scene, HandlerSceneCommandKind, cmd)
+			res, _, err := scene.executeCommand(cmd, ctx, bot.appData)
+			if err != nil {
+				bot.emitSceneFinished(ctx, scene, HandlerSceneCommandKind, cmd, startTime, err)
+				bot.emitSceneError(ctx, scene, HandlerSceneCommandKind, cmd, err)
+				return false, err
+			}
+			from := ctx.sess.Step
+			ok, err := bot.applySceneResult(scene, ctx, res)
+			bot.emitSceneFinished(ctx, scene, HandlerSceneCommandKind, cmd, startTime, err)
+			if err != nil {
+				bot.emitSceneError(ctx, scene, HandlerSceneCommandKind, cmd, err)
+			}
+			if ok {
+				bot.emitSceneTransition(ctx, scene, from, res)
+			}
+			return ok, err
+		}
+	}
+	ctx.Text = text
+	ctx.Args = nil
+	ctx.Prefix = ""
+	if ctx.sess.Step != "" {
+		step := ctx.sess.Step
+		if _, ok := scene.steps[step]; ok {
+			startTime := time.Now()
+			bot.emitSceneStarted(ctx, scene, HandlerSceneStepKind, step)
+			res, _, err := scene.executeStep(step, ctx, bot.appData)
+			if err != nil {
+				bot.emitSceneFinished(ctx, scene, HandlerSceneStepKind, step, startTime, err)
+				bot.emitSceneError(ctx, scene, HandlerSceneStepKind, step, err)
+				return false, err
+			}
+			from := step
+			ok, err := bot.applySceneResult(scene, ctx, res)
+			bot.emitSceneFinished(ctx, scene, HandlerSceneStepKind, step, startTime, err)
+			if err != nil {
+				bot.emitSceneError(ctx, scene, HandlerSceneStepKind, from, err)
+			}
+			if ok {
+				bot.emitSceneTransition(ctx, scene, from, res)
+			}
+			return ok, err
+		}
+	}
+
+	if scene.message != nil {
+		startTime := time.Now()
+		bot.emitSceneStarted(ctx, scene, HandlerSceneMessageKind, "message_fallback")
+		res, _, err := scene.executeMessage(ctx, bot.appData)
+		if err != nil {
+			bot.emitSceneFinished(ctx, scene, HandlerSceneMessageKind, "message_fallback", startTime, err)
+			bot.emitSceneError(ctx, scene, HandlerSceneMessageKind, "message_fallback", err)
+			return false, err
+		}
+		from := ctx.sess.Step
+		ok, err := bot.applySceneResult(scene, ctx, res)
+		bot.emitSceneFinished(ctx, scene, HandlerSceneMessageKind, "message_fallback", startTime, err)
+		if err != nil {
+			bot.emitSceneError(ctx, scene, HandlerSceneMessageKind, "message_fallback", err)
+		}
+		if ok {
+			bot.emitSceneTransition(ctx, scene, from, res)
+		}
+		return ok, err
+	}
+
+	return false, nil
+}
+
+func (bot *Bot[T]) emitSceneStarted(ctx *SceneContext, scene *Scene[T], kind HandlerEventKind, name string) {
+	bot.safeEmitEvent(ctx.Context(), HandlerStartedEvent{
+		UpdateID:    ctx.Update.UpdateID,
+		UpdateType:  ctx.Update.Type,
+		Plugin:      scene.PluginName,
+		HandlerKind: kind,
+		HandlerName: name,
+		FromID:      ctx.FromID,
+		ChatID:      ctx.ChatID,
+	})
+}
+
+func (bot *Bot[T]) emitSceneFinished(ctx *SceneContext, scene *Scene[T], kind HandlerEventKind, name string, startedAt time.Time, err error) {
+	bot.safeEmitEvent(ctx.Context(), HandlerFinishedEvent{
+		UpdateID:    ctx.Update.UpdateID,
+		UpdateType:  ctx.Update.Type,
+		Plugin:      scene.PluginName,
+		HandlerKind: kind,
+		HandlerName: name,
+		FromID:      ctx.FromID,
+		ChatID:      ctx.ChatID,
+		Duration:    time.Since(startedAt),
+		Err:         err,
+		UserFacing:  IsUserError(err),
+	})
+}
+
+func (bot *Bot[T]) emitSceneError(ctx *SceneContext, scene *Scene[T], kind HandlerEventKind, name string, err error) {
+	bot.safeEmitEvent(ctx.Context(), ErrorEvent{
+		UpdateID:    ctx.Update.UpdateID,
+		UpdateType:  ctx.Update.Type,
+		Plugin:      scene.PluginName,
+		HandlerKind: kind,
+		HandlerName: name,
+		FromID:      ctx.FromID,
+		ChatID:      ctx.ChatID,
+		Err:         err,
+		UserFacing:  IsUserError(err),
+	})
+}
+
+func (bot *Bot[T]) emitSceneTransition(ctx *SceneContext, scene *Scene[T], from string, result SceneResult) {
+	if result.Action == SceneActionPass {
+		return
+	}
+
+	to := from
+	switch result.Action {
+	case SceneActionNext:
+		to = result.Next
+	case SceneActionExit:
+		to = ""
+	}
+
+	bot.safeEmitEvent(ctx.Context(), SceneTransitionEvent{
+		Plugin: scene.PluginName,
+		Scene:  scene.Name,
+		From:   from,
+		To:     to,
+		Action: result.Action,
+		FromID: ctx.FromID,
+		ChatID: ctx.ChatID,
+	})
+}
+
+func (bot *Bot[T]) applySceneResult(scene *Scene[T], ctx *SceneContext, result SceneResult) (bool, error) {
+	switch result.Action {
+	case SceneActionStay:
+		if err := bot.sessionStore.Set(ctx.key, ctx.sess); err != nil {
+			return false, err
+		}
+		return true, nil
+	case SceneActionNext:
+		if result.Next == "" {
+			return false, ErrSceneStepNotFound
+		}
+		if _, ok := scene.steps[result.Next]; !ok {
+			return false, ErrSceneStepNotFound
+		}
+		ctx.sess.Step = result.Next
+		if err := bot.sessionStore.Set(ctx.key, ctx.sess); err != nil {
+			return false, err
+		}
+		return true, nil
+	case SceneActionExit:
+		if err := bot.sessionStore.Delete(ctx.key); err != nil {
+			return false, err
+		}
+		return true, nil
+	case SceneActionPass:
+		return false, nil
+	default:
+		return false, nil
+	}
+}
+func buildSceneKey(scope SceneScope, ctx *MsgContext) (string, bool) {
+	if ctx == nil {
+		return "", false
+	}
+
+	switch scope {
+	case SceneScopeUserChat:
+		if ctx.Msg == nil || ctx.Msg.Chat == nil || ctx.FromID == 0 {
+			return "", false
+		}
+		return fmt.Sprintf("user_id:%d:chat_id:%d", ctx.FromID, ctx.Msg.Chat.ID), true
+	case SceneScopeChat:
+		if ctx.Msg == nil || ctx.Msg.Chat == nil {
+			return "", false
+		}
+		return fmt.Sprintf("chat_id:%d", ctx.Msg.Chat.ID), true
+	case SceneScopeUser:
+		if ctx.FromID == 0 {
+			return "", false
+		}
+		return fmt.Sprintf("user_id:%d", ctx.FromID), true
+	default:
+		return "", false
+	}
+}

scene_test.go

@@ -0,0 +1,632 @@
+package laniakea
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/slog"
+)
+
+type failingSessionStore struct {
+	getErr    error
+	setErr    error
+	deleteErr error
+}
+
+func (s failingSessionStore) Get(key string) (SceneSession, error) {
+	return SceneSession{}, s.getErr
+}
+
+func (s failingSessionStore) Set(key string, session SceneSession) error {
+	return s.setErr
+}
+
+func (s failingSessionStore) Delete(key string) error {
+	return s.deleteErr
+}
+
+func TestPluginAddSceneRegistersScene(t *testing.T) {
+	plugin := NewPlugin[NoData]("wizard")
+	scene := NewScene[NoData]("signup")
+
+	plugin.AddScene(scene)
+
+	if got, ok := plugin.scenes["signup"]; !ok || got != scene {
+		t.Fatalf("scene was not registered in plugin: ok=%v got=%p want=%p", ok, got, scene)
+	}
+	if scene.PluginName != "wizard" {
+		t.Fatalf("unexpected plugin name on scene: got %q want %q", scene.PluginName, "wizard")
+	}
+}
+
+func TestBotAddPluginsPreservesScenesAndHandlesThem(t *testing.T) {
+	called := false
+
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			called = true
+			if ctx.Text != "hello there" {
+				t.Fatalf("unexpected scene text: got %q want %q", ctx.Text, "hello there")
+			}
+			return ctx.Exit(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+	}
+	bot.AddPlugins(plugin)
+
+	sceneMeta, ok := bot.findScene("signup")
+	if !ok {
+		t.Fatal("expected scene metadata to be available after plugin registration")
+	}
+	if sceneMeta.Entry != "start" {
+		t.Fatalf("unexpected scene entry: got %q want %q", sceneMeta.Entry, "start")
+	}
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 1,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 7,
+			Text:      "hello there",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if !called {
+		t.Fatal("expected scene step handler to be called")
+	}
+
+	lookupCtx := &MsgContext{
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID: 42,
+	}
+	if _, session, err := bot.findSceneSession(lookupCtx); err == nil && session.Scene != "" {
+		t.Fatalf("expected scene session to be removed after exit, got %#v", session)
+	}
+}
+
+func TestBuildSceneKeyRejectsMissingContextFields(t *testing.T) {
+	tests := []struct {
+		name  string
+		scope SceneScope
+		ctx   *MsgContext
+	}{
+		{
+			name:  "nil context",
+			scope: SceneScopeUserChat,
+			ctx:   nil,
+		},
+		{
+			name:  "missing message for chat scope",
+			scope: SceneScopeChat,
+			ctx:   &MsgContext{},
+		},
+		{
+			name:  "missing from id for user scope",
+			scope: SceneScopeUser,
+			ctx:   &MsgContext{},
+		},
+		{
+			name:  "missing from id for user chat scope",
+			scope: SceneScopeUserChat,
+			ctx: &MsgContext{
+				Msg: &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if key, ok := buildSceneKey(tt.scope, tt.ctx); ok || key != "" {
+				t.Fatalf("expected invalid scene key, got key=%q ok=%v", key, ok)
+			}
+		})
+	}
+}
+
+func TestEnterSceneRejectsMissingEntryConfiguration(t *testing.T) {
+	t.Run("empty entry", func(t *testing.T) {
+		plugin := NewPlugin[NoData]("wizard")
+		plugin.NewScene("signup")
+
+		bot := &Bot[NoData]{
+			logger:             slog.CreateLogger(),
+			sessionStore:       NewMemorySessionStore(),
+			sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		}
+		bot.AddPlugins(plugin)
+
+		ctx := &MsgContext{
+			Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+			FromID:       42,
+			sceneRuntime: bot,
+		}
+
+		err := ctx.EnterScene("signup")
+		if !errors.Is(err, ErrSceneEntryNotSet) {
+			t.Fatalf("expected ErrSceneEntryNotSet, got %v", err)
+		}
+	})
+
+	t.Run("missing entry step", func(t *testing.T) {
+		plugin := NewPlugin[NoData]("wizard")
+		plugin.NewScene("signup").SetEntry("start")
+
+		bot := &Bot[NoData]{
+			logger:             slog.CreateLogger(),
+			sessionStore:       NewMemorySessionStore(),
+			sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		}
+		bot.AddPlugins(plugin)
+
+		ctx := &MsgContext{
+			Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+			FromID:       42,
+			sceneRuntime: bot,
+		}
+
+		err := ctx.EnterScene("signup")
+		if !errors.Is(err, ErrSceneStepNotFound) {
+			t.Fatalf("expected ErrSceneStepNotFound, got %v", err)
+		}
+	})
+}
+
+func TestSceneContextMethodsRequireRuntime(t *testing.T) {
+	ctx := &MsgContext{}
+
+	if err := ctx.EnterScene("signup"); !errors.Is(err, ErrSceneRuntimeNil) {
+		t.Fatalf("expected ErrSceneRuntimeNil from EnterScene, got %v", err)
+	}
+	if err := ctx.EnterSceneStep("signup", "start"); !errors.Is(err, ErrSceneRuntimeNil) {
+		t.Fatalf("expected ErrSceneRuntimeNil from EnterSceneStep, got %v", err)
+	}
+	if err := ctx.ExitScene(); !errors.Is(err, ErrSceneRuntimeNil) {
+		t.Fatalf("expected ErrSceneRuntimeNil from ExitScene, got %v", err)
+	}
+}
+
+func TestSceneCommandHandlerRunsBeforeStep(t *testing.T) {
+	sceneCommandCalled := false
+	stepCalled := false
+
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			stepCalled = true
+			return ctx.Stay(), nil
+		}).
+		OnCommand("cancel", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			sceneCommandCalled = true
+			if ctx.Prefix != "/" {
+				t.Fatalf("unexpected prefix: got %q want /", ctx.Prefix)
+			}
+			if ctx.Text != "right now" {
+				t.Fatalf("unexpected scene command text: got %q want %q", ctx.Text, "right now")
+			}
+			if len(ctx.Args) != 2 || ctx.Args[0] != "right" || ctx.Args[1] != "now" {
+				t.Fatalf("unexpected scene command args: %#v", ctx.Args)
+			}
+			return ctx.Exit(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+	}
+	bot.AddPlugins(plugin)
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 2,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 8,
+			Text:      "/cancel right now",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if !sceneCommandCalled {
+		t.Fatal("expected scene command handler to be called")
+	}
+	if stepCalled {
+		t.Fatal("expected scene command to short-circuit the scene step")
+	}
+}
+
+func TestSceneCommandObserverEmitsLifecycleEvents(t *testing.T) {
+	observer := &recordingObserver{}
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Stay(), nil
+		}).
+		OnCommand("cancel", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Exit(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		observer:           observer,
+	}
+	bot.AddPlugins(plugin)
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 22,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 9,
+			Text:      "/cancel",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if len(observer.started) != 1 {
+		t.Fatalf("expected one scene started event, got %d", len(observer.started))
+	}
+	if got := observer.started[0]; got.HandlerKind != HandlerSceneCommandKind || got.HandlerName != "cancel" || got.Plugin != "wizard" {
+		t.Fatalf("unexpected scene started event: %#v", got)
+	}
+	if len(observer.finished) != 1 {
+		t.Fatalf("expected one scene finished event, got %d", len(observer.finished))
+	}
+	if got := observer.finished[0]; got.HandlerKind != HandlerSceneCommandKind || got.HandlerName != "cancel" || got.Plugin != "wizard" || got.Err != nil {
+		t.Fatalf("unexpected scene finished event: %#v", got)
+	}
+}
+
+func TestSceneStepObserverEmitsLifecycleEvents(t *testing.T) {
+	observer := &recordingObserver{}
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Stay(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		observer:           observer,
+	}
+	bot.AddPlugins(plugin)
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 23,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 10,
+			Text:      "hello there",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if len(observer.started) != 1 {
+		t.Fatalf("expected one scene started event, got %d", len(observer.started))
+	}
+	if got := observer.started[0]; got.HandlerKind != HandlerSceneStepKind || got.HandlerName != "start" || got.Plugin != "wizard" {
+		t.Fatalf("unexpected scene step started event: %#v", got)
+	}
+	if len(observer.finished) != 1 {
+		t.Fatalf("expected one scene finished event, got %d", len(observer.finished))
+	}
+	if got := observer.finished[0]; got.HandlerKind != HandlerSceneStepKind || got.HandlerName != "start" || got.Plugin != "wizard" || got.Err != nil {
+		t.Fatalf("unexpected scene step finished event: %#v", got)
+	}
+}
+
+func TestSceneMessageObserverEmitsLifecycleEvents(t *testing.T) {
+	observer := &recordingObserver{}
+	plugin := NewPlugin[NoData]("wizard")
+	scene := plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Stay(), nil
+		}).
+		OnMessage(func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Exit(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		observer:           observer,
+	}
+	bot.AddPlugins(plugin)
+
+	key, ok := buildSceneKey(SceneScopeUserChat, &MsgContext{
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID: 42,
+	})
+	if !ok {
+		t.Fatal("expected scene key to be built")
+	}
+	if err := bot.sessionStore.Set(key, SceneSession{Scene: scene.Name}); err != nil {
+		t.Fatalf("failed to seed scene session: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 24,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 11,
+			Text:      "hello there",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if len(observer.started) != 1 {
+		t.Fatalf("expected one scene started event, got %d", len(observer.started))
+	}
+	if got := observer.started[0]; got.HandlerKind != HandlerSceneMessageKind || got.HandlerName != "message_fallback" || got.Plugin != "wizard" {
+		t.Fatalf("unexpected scene message started event: %#v", got)
+	}
+	if len(observer.finished) != 1 {
+		t.Fatalf("expected one scene finished event, got %d", len(observer.finished))
+	}
+	if got := observer.finished[0]; got.HandlerKind != HandlerSceneMessageKind || got.HandlerName != "message_fallback" || got.Plugin != "wizard" || got.Err != nil {
+		t.Fatalf("unexpected scene message finished event: %#v", got)
+	}
+}
+
+func TestScenePassDoesNotPersistSessionData(t *testing.T) {
+	commandCalled := false
+
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewCommand(func(ctx *MsgContext, db NoData) error {
+		commandCalled = true
+		return nil
+	}, "ping")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			if err := ctx.SaveData(struct {
+				Value string `json:"value"`
+			}{Value: "changed"}); err != nil {
+				t.Fatalf("SaveData returned error: %v", err)
+			}
+			return ctx.Pass(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+	}
+	bot.AddPlugins(plugin)
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	key, ok := buildSceneKey(SceneScopeUserChat, &MsgContext{
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID: 42,
+	})
+	if !ok {
+		t.Fatal("expected scene key to be built")
+	}
+
+	before, err := bot.sessionStore.Get(key)
+	if err != nil {
+		t.Fatalf("Get before handle returned error: %v", err)
+	}
+	if before.HasData() {
+		t.Fatalf("expected empty session data before handle, got %#v", before)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 3,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 9,
+			Text:      "/ping",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if !commandCalled {
+		t.Fatal("expected normal command routing to continue after SceneActionPass")
+	}
+
+	after, err := bot.sessionStore.Get(key)
+	if err != nil {
+		t.Fatalf("Get after handle returned error: %v", err)
+	}
+	if after.Scene != "signup" || after.Step != "start" {
+		t.Fatalf("unexpected session after pass: %#v", after)
+	}
+	if after.HasData() {
+		t.Fatalf("expected SceneActionPass to leave session data unchanged, got %#v", after)
+	}
+}
+
+func TestSceneMessageFallbackRunsWhenNoCommandOrStepMatch(t *testing.T) {
+	fallbackCalled := false
+
+	plugin := NewPlugin[NoData]("wizard")
+	plugin.NewScene("signup").
+		SetEntry("start").
+		OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Stay(), nil
+		}).
+		OnMessage(func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			fallbackCalled = true
+			if ctx.Text != "hello fallback" {
+				t.Fatalf("unexpected fallback text: got %q want %q", ctx.Text, "hello fallback")
+			}
+			return ctx.Exit(), nil
+		})
+
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		prefixes:           []string{"/"},
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+	}
+	bot.AddPlugins(plugin)
+
+	enterCtx := &MsgContext{
+		Msg:          &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID:       42,
+		sceneRuntime: bot,
+	}
+	if err := enterCtx.EnterScene("signup"); err != nil {
+		t.Fatalf("EnterScene returned error: %v", err)
+	}
+
+	key, ok := buildSceneKey(SceneScopeUserChat, &MsgContext{
+		Msg:    &tgapi.Message{Chat: &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate}},
+		FromID: 42,
+	})
+	if !ok {
+		t.Fatal("expected scene key to be built")
+	}
+	if err := bot.sessionStore.Set(key, SceneSession{Scene: "signup", Step: "unknown"}); err != nil {
+		t.Fatalf("Set returned error: %v", err)
+	}
+
+	bot.handle(context.Background(), &tgapi.Update{
+		UpdateID: 4,
+		Type:     tgapi.UpdateTypeMessage,
+		Message: &tgapi.Message{
+			MessageID: 10,
+			Text:      "hello fallback",
+			Chat:      &tgapi.Chat{ID: 100, Type: tgapi.ChatTypePrivate},
+			From:      &tgapi.User{ID: 42},
+		},
+	})
+
+	if !fallbackCalled {
+		t.Fatal("expected scene fallback handler to be called")
+	}
+}
+
+func TestFindSceneSessionSupportsUserScopeWithoutMessage(t *testing.T) {
+	bot := &Bot[NoData]{
+		logger:             slog.CreateLogger(),
+		sessionStore:       NewMemorySessionStore(),
+		sceneScopePriority: []SceneScope{SceneScopeUser, SceneScopeChat, SceneScopeUserChat},
+	}
+
+	if err := bot.sessionStore.Set("user_id:42", SceneSession{Scene: "signup", Step: "start"}); err != nil {
+		t.Fatalf("Set returned error: %v", err)
+	}
+
+	key, session, err := bot.findSceneSession(&MsgContext{FromID: 42})
+	if err != nil {
+		t.Fatalf("findSceneSession returned error: %v", err)
+	}
+	if key != "user_id:42" {
+		t.Fatalf("unexpected session key: got %q want %q", key, "user_id:42")
+	}
+	if session.Scene != "signup" || session.Step != "start" {
+		t.Fatalf("unexpected session: %#v", session)
+	}
+}
+
+func TestSceneStoreErrorsPropagate(t *testing.T) {
+	getErr := errors.New("get failed")
+	setErr := errors.New("set failed")
+
+	t.Run("find scene session get error", func(t *testing.T) {
+		bot := &Bot[NoData]{
+			logger:             slog.CreateLogger(),
+			sessionStore:       failingSessionStore{getErr: getErr},
+			sceneScopePriority: []SceneScope{SceneScopeUser},
+		}
+
+		_, _, err := bot.findSceneSession(&MsgContext{FromID: 42})
+		if !errors.Is(err, getErr) {
+			t.Fatalf("expected getErr, got %v", err)
+		}
+	})
+
+	t.Run("apply scene result set error", func(t *testing.T) {
+		scene := NewScene[NoData]("signup").OnStep("start", func(ctx *SceneContext, db NoData) (SceneResult, error) {
+			return ctx.Stay(), nil
+		})
+		bot := &Bot[NoData]{
+			logger:             slog.CreateLogger(),
+			sessionStore:       failingSessionStore{setErr: setErr},
+			sceneScopePriority: []SceneScope{SceneScopeUserChat, SceneScopeChat, SceneScopeUser},
+		}
+
+		_, err := bot.applySceneResult(scene, &SceneContext{
+			MsgContext: &MsgContext{},
+			sess:       SceneSession{Scene: "signup", Step: "start"},
+			key:        "user_id:42:chat_id:100",
+		}, SceneResult{Action: SceneActionStay})
+		if !errors.Is(err, setErr) {
+			t.Fatalf("expected setErr, got %v", err)
+		}
+	})
+}

split.go

@@ -0,0 +1,44 @@
+package laniakea
+
+// SplitMessageText splits plain text into Telegram-safe message chunks.
+//
+// The function preserves the original text exactly: concatenating all returned
+// chunks reconstructs text byte-for-byte. It prefers splitting at newlines or
+// spaces within the Telegram message limit and falls back to hard rune-based
+// splits when no separator is available.
+func SplitMessageText(text string) []string {
+	return splitTextByLimit(text, maxMessageTextLen)
+}
+
+func splitTextByLimit(text string, limit int) []string {
+	if text == "" {
+		return nil
+	}
+
+	runes := []rune(text)
+	chunks := make([]string, 0, len(runes)/limit+1)
+
+	for start := 0; start < len(runes); {
+		end := start + limit
+		if end >= len(runes) {
+			chunks = append(chunks, string(runes[start:]))
+			break
+		}
+
+		splitAt := -1
+		for i := end - 1; i > start; i-- {
+			if runes[i] == '\n' || runes[i] == ' ' {
+				splitAt = i + 1
+				break
+			}
+		}
+		if splitAt == -1 {
+			splitAt = end
+		}
+
+		chunks = append(chunks, string(runes[start:splitAt]))
+		start = splitAt
+	}
+
+	return chunks
+}

tgapi/api.go

@@ -9,8 +9,8 @@ import (
 	"net/http"
 	"time"
 
-	"git.nix13.pw/scuroneko/laniakea/utils"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 // APIOpts holds configuration options for initializing the Telegram API client.
@@ -98,6 +98,11 @@ type API struct {
 // Always call Close() when done to release resources.
 func NewAPI(opts *APIOpts) *API {
 	l := utils.CreateLogger("API", utils.GetLoggerLevel())
+	if opts == nil {
+		l.Errorln("Set API options")
+		_ = l.Close()
+		return nil
+	}
 
 	client := opts.client
 	if client == nil {
@@ -124,6 +129,9 @@ func NewAPI(opts *APIOpts) *API {
 // See https://core.telegram.org/bots/api
 func (api *API) Close() error {
 	api.pool.stop()
+	if api.client != nil {
+		api.client.CloseIdleConnections()
+	}
 	return api.logger.Close()
 }
 
@@ -149,37 +157,29 @@ type ApiResponse[R any] struct {
 	Parameters  *ResponseParameters `json:"parameters,omitempty"`
 }
 
-// TelegramRequest is an internal helper struct.
-// DO NOT USE NewRequest or NewRequestWithChatID — they are unsafe and discouraged.
-// Instead, use explicit methods like SendMessage, GetUpdates, etc.
+// TelegramRequest is a low-level Telegram API request wrapper.
 //
-// Why? Because using generics with arbitrary types P and R leads to:
-//   - No compile-time validation of parameters
-//   - No IDE autocompletion
-//   - Runtime panics on malformed JSON
-//   - Hard-to-debug errors
-//
-// Recommended: Define specific methods for each Telegram method (see below).
+// Prefer method-specific helpers such as SendMessage or GetUpdates. TelegramRequest
+// bypasses method-specific parameter types and convenience helpers, so callers are
+// responsible for using the correct method name and compatible request and response types.
+// In that sense it is an unsafe escape hatch compared with the typed API surface.
 type TelegramRequest[R, P any] struct {
 	method string
 	params P
 	chatId int64
 }
 
-// NewRequest creates an untyped TelegramRequest for the given method and params with no chat ID.
+// NewRequest creates a low-level TelegramRequest with no associated chat ID.
 func NewRequest[R, P any](method string, params P) TelegramRequest[R, P] {
 	return TelegramRequest[R, P]{method, params, 0}
 }
 
-// NewRequestWithChatID creates an untyped TelegramRequest with an associated chat ID.
+// NewRequestWithChatID creates a low-level TelegramRequest with an associated chat ID.
 // The chat ID is used for per-chat rate limiting.
 func NewRequestWithChatID[R, P any](method string, params P, chatId int64) TelegramRequest[R, P] {
 	return TelegramRequest[R, P]{method, params, chatId}
 }
 
-// doRequest performs a single HTTP request to Telegram API.
-// Handles rate limiting, retries on 429, and parses responses.
-// Must be called within a worker pool context if using DoWithContext.
 func (r TelegramRequest[R, P]) doRequest(ctx context.Context, api *API) (R, error) {
 	var zero R
 	reqData, err := json.Marshal(r.params)
@@ -296,15 +296,13 @@ func (r TelegramRequest[R, P]) Do(api *API) (R, error) {
 	return r.DoWithContext(context.Background(), api)
 }
 
-// readBody reads and limits response body to prevent memory exhaustion.
-// Telegram responses are typically small (<1MB), but we cap at 10MB.
+// Internal helper that reads and caps a Telegram response body.
 func readBody(body io.ReadCloser) ([]byte, error) {
 	reader := io.LimitReader(body, 10<<20) // 10 MB
 	return io.ReadAll(reader)
 }
 
-// parseBody unmarshals a Telegram API response into a typed ApiResponse.
-// Only returns an error on malformed JSON; non-OK responses are left for the caller to handle.
+// Internal helper that parses a typed Telegram API response body.
 func parseBody[R any](data []byte) (ApiResponse[R], error) {
 	var resp ApiResponse[R]
 	err := json.Unmarshal(data, &resp)

tgapi/api_test.go

@@ -13,6 +13,15 @@ func (fn roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
 	return fn(req)
 }
 
+type closingTransport struct {
+	roundTripFunc
+	closed bool
+}
+
+func (t *closingTransport) CloseIdleConnections() {
+	t.closed = true
+}
+
 func TestAPILeavesAcceptEncodingToHTTPTransport(t *testing.T) {
 	var gotPath string
 	var gotAcceptEncoding string
@@ -54,3 +63,28 @@ func TestAPILeavesAcceptEncodingToHTTPTransport(t *testing.T) {
 		t.Fatalf("expected empty Accept-Encoding header, got %q", gotAcceptEncoding)
 	}
 }
+
+func TestAPICloseClosesIdleConnections(t *testing.T) {
+	transport := &closingTransport{
+		roundTripFunc: func(req *http.Request) (*http.Response, error) {
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":{"id":1,"is_bot":true,"first_name":"Test"}}`)),
+			}, nil
+		},
+	}
+
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(&http.Client{Transport: transport}),
+	)
+
+	if err := api.Close(); err != nil {
+		t.Fatalf("Close returned error: %v", err)
+	}
+	if !transport.closed {
+		t.Fatal("expected Close to close idle HTTP connections")
+	}
+}

tgapi/attachments_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SendPhotoP holds parameters for the sendPhoto method.
+// SendPhoto holds parameters for the sendPhoto method.
 // See https://core.telegram.org/bots/api#sendphoto
-type SendPhotoP struct {
+type SendPhoto struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -29,7 +29,7 @@ type SendPhotoP struct {
 
 // SendPhoto sends a photo.
 // See https://core.telegram.org/bots/api#sendphoto
-func (api *API) SendPhoto(params SendPhotoP) (Message, error) {
+func (api *API) SendPhoto(params SendPhoto) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPhoto", params, params.ChatID)
 	return req.Do(api)
 }
@@ -37,14 +37,14 @@ func (api *API) SendPhoto(params SendPhotoP) (Message, error) {
 // SendPhotoWithContext is the context-aware variant of SendPhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendphoto
-func (api *API) SendPhotoWithContext(ctx context.Context, params SendPhotoP) (Message, error) {
+func (api *API) SendPhotoWithContext(ctx context.Context, params SendPhoto) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPhoto", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendAudioP holds parameters for the sendAudio method.
+// SendAudio holds parameters for the sendAudio method.
 // See https://core.telegram.org/bots/api#sendaudio
-type SendAudioP struct {
+type SendAudio struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -71,7 +71,7 @@ type SendAudioP struct {
 
 // SendAudio sends an audio file.
 // See https://core.telegram.org/bots/api#sendaudio
-func (api *API) SendAudio(params SendAudioP) (Message, error) {
+func (api *API) SendAudio(params SendAudio) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendAudio", params, params.ChatID)
 	return req.Do(api)
 }
@@ -79,14 +79,14 @@ func (api *API) SendAudio(params SendAudioP) (Message, error) {
 // SendAudioWithContext is the context-aware variant of SendAudio.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendaudio
-func (api *API) SendAudioWithContext(ctx context.Context, params SendAudioP) (Message, error) {
+func (api *API) SendAudioWithContext(ctx context.Context, params SendAudio) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendAudio", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendDocumentP holds parameters for the sendDocument method.
+// SendDocument holds parameters for the sendDocument method.
 // See https://core.telegram.org/bots/api#senddocument
-type SendDocumentP struct {
+type SendDocument struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -111,7 +111,7 @@ type SendDocumentP struct {
 
 // SendDocument sends a document.
 // See https://core.telegram.org/bots/api#senddocument
-func (api *API) SendDocument(params SendDocumentP) (Message, error) {
+func (api *API) SendDocument(params SendDocument) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendDocument", params, params.ChatID)
 	return req.Do(api)
 }
@@ -119,14 +119,14 @@ func (api *API) SendDocument(params SendDocumentP) (Message, error) {
 // SendDocumentWithContext is the context-aware variant of SendDocument.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#senddocument
-func (api *API) SendDocumentWithContext(ctx context.Context, params SendDocumentP) (Message, error) {
+func (api *API) SendDocumentWithContext(ctx context.Context, params SendDocument) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendDocument", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendVideoP holds parameters for the sendVideo method.
+// SendVideo holds parameters for the sendVideo method.
 // See https://core.telegram.org/bots/api#sendvideo
-type SendVideoP struct {
+type SendVideo struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -159,7 +159,7 @@ type SendVideoP struct {
 
 // SendVideo sends a video.
 // See https://core.telegram.org/bots/api#sendvideo
-func (api *API) SendVideo(params SendVideoP) (Message, error) {
+func (api *API) SendVideo(params SendVideo) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVideo", params, params.ChatID)
 	return req.Do(api)
 }
@@ -167,14 +167,14 @@ func (api *API) SendVideo(params SendVideoP) (Message, error) {
 // SendVideoWithContext is the context-aware variant of SendVideo.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvideo
-func (api *API) SendVideoWithContext(ctx context.Context, params SendVideoP) (Message, error) {
+func (api *API) SendVideoWithContext(ctx context.Context, params SendVideo) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVideo", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendAnimationP holds parameters for the sendAnimation method.
+// SendAnimation holds parameters for the sendAnimation method.
 // See https://core.telegram.org/bots/api#sendanimation
-type SendAnimationP struct {
+type SendAnimation struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -203,7 +203,7 @@ type SendAnimationP struct {
 
 // SendAnimation sends an animation file (GIF or H.264/MPEG-4 AVC video without sound).
 // See https://core.telegram.org/bots/api#sendanimation
-func (api *API) SendAnimation(params SendAnimationP) (Message, error) {
+func (api *API) SendAnimation(params SendAnimation) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendAnimation", params, params.ChatID)
 	return req.Do(api)
 }
@@ -211,14 +211,14 @@ func (api *API) SendAnimation(params SendAnimationP) (Message, error) {
 // SendAnimationWithContext is the context-aware variant of SendAnimation.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendanimation
-func (api *API) SendAnimationWithContext(ctx context.Context, params SendAnimationP) (Message, error) {
+func (api *API) SendAnimationWithContext(ctx context.Context, params SendAnimation) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendAnimation", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendVoiceP holds parameters for the sendVoice method.
+// SendVoice holds parameters for the sendVoice method.
 // See https://core.telegram.org/bots/api#sendvoice
-type SendVoiceP struct {
+type SendVoice struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -241,7 +241,7 @@ type SendVoiceP struct {
 
 // SendVoice sends a voice note.
 // See https://core.telegram.org/bots/api#sendvoice
-func (api *API) SendVoice(params *SendVoiceP) (Message, error) {
+func (api *API) SendVoice(params SendVoice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVoice", params, params.ChatID)
 	return req.Do(api)
 }
@@ -249,14 +249,14 @@ func (api *API) SendVoice(params *SendVoiceP) (Message, error) {
 // SendVoiceWithContext is the context-aware variant of SendVoice.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvoice
-func (api *API) SendVoiceWithContext(ctx context.Context, params *SendVoiceP) (Message, error) {
+func (api *API) SendVoiceWithContext(ctx context.Context, params SendVoice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVoice", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendVideoNoteP holds parameters for the sendVideoNote method.
+// SendVideoNote holds parameters for the sendVideoNote method.
 // See https://core.telegram.org/bots/api#sendvideonote
-type SendVideoNoteP struct {
+type SendVideoNote struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -278,7 +278,7 @@ type SendVideoNoteP struct {
 
 // SendVideoNote sends a video note (rounded video message).
 // See https://core.telegram.org/bots/api#sendvideonote
-func (api *API) SendVideoNote(params SendVideoNoteP) (Message, error) {
+func (api *API) SendVideoNote(params SendVideoNote) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVideoNote", params, params.ChatID)
 	return req.Do(api)
 }
@@ -286,14 +286,14 @@ func (api *API) SendVideoNote(params SendVideoNoteP) (Message, error) {
 // SendVideoNoteWithContext is the context-aware variant of SendVideoNote.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvideonote
-func (api *API) SendVideoNoteWithContext(ctx context.Context, params SendVideoNoteP) (Message, error) {
+func (api *API) SendVideoNoteWithContext(ctx context.Context, params SendVideoNote) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVideoNote", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendPaidMediaP holds parameters for the sendPaidMedia method.
+// SendPaidMedia holds parameters for the sendPaidMedia method.
 // See https://core.telegram.org/bots/api#sendpaidmedia
-type SendPaidMediaP struct {
+type SendPaidMedia struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -317,7 +317,7 @@ type SendPaidMediaP struct {
 
 // SendPaidMedia sends paid media.
 // See https://core.telegram.org/bots/api#sendpaidmedia
-func (api *API) SendPaidMedia(params SendPaidMediaP) (Message, error) {
+func (api *API) SendPaidMedia(params SendPaidMedia) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPaidMedia", params, params.ChatID)
 	return req.Do(api)
 }
@@ -325,14 +325,14 @@ func (api *API) SendPaidMedia(params SendPaidMediaP) (Message, error) {
 // SendPaidMediaWithContext is the context-aware variant of SendPaidMedia.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendpaidmedia
-func (api *API) SendPaidMediaWithContext(ctx context.Context, params SendPaidMediaP) (Message, error) {
+func (api *API) SendPaidMediaWithContext(ctx context.Context, params SendPaidMedia) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPaidMedia", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendMediaGroupP holds parameters for the sendMediaGroup method.
+// SendMediaGroup holds parameters for the sendMediaGroup method.
 // See https://core.telegram.org/bots/api#sendmediagroup
-type SendMediaGroupP struct {
+type SendMediaGroup struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -348,7 +348,7 @@ type SendMediaGroupP struct {
 
 // SendMediaGroup sends a group of photos, videos, documents or audios as an album.
 // See https://core.telegram.org/bots/api#sendmediagroup
-func (api *API) SendMediaGroup(params SendMediaGroupP) ([]Message, error) {
+func (api *API) SendMediaGroup(params SendMediaGroup) ([]Message, error) {
 	req := NewRequestWithChatID[[]Message]("sendMediaGroup", params, params.ChatID)
 	return req.Do(api)
 }
@@ -356,7 +356,7 @@ func (api *API) SendMediaGroup(params SendMediaGroupP) ([]Message, error) {
 // SendMediaGroupWithContext is the context-aware variant of SendMediaGroup.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendmediagroup
-func (api *API) SendMediaGroupWithContext(ctx context.Context, params SendMediaGroupP) ([]Message, error) {
+func (api *API) SendMediaGroupWithContext(ctx context.Context, params SendMediaGroup) ([]Message, error) {
 	req := NewRequestWithChatID[[]Message]("sendMediaGroup", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }

tgapi/attachments_types.go

@@ -1,5 +1,253 @@
 package tgapi
 
+type Animation struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	Width        int    `json:"width"`
+	Height       int    `json:"height"`
+	Duration     int    `json:"duration"`
+
+	Thumbnail *PhotoSize `json:"thumbnail,omitempty"`
+	FileName  string     `json:"file_name"`
+	MimeType  string     `json:"mime_type"`
+	FileSize  int        `json:"file_size"`
+}
+
+// Audio represents an audio file to be treated as music by the Telegram clients.
+// See https://core.telegram.org/bots/api#audio
+type Audio struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	Duration     int    `json:"duration"`
+
+	Performer string     `json:"performer,omitempty"`
+	Title     string     `json:"title,omitempty"`
+	FileName  string     `json:"file_name,omitempty"`
+	MimeType  string     `json:"mime_type,omitempty"`
+	FileSize  int64      `json:"file_size,omitempty"`
+	Thumbnail *PhotoSize `json:"thumbnail,omitempty"`
+}
+
+type Document struct {
+	FileID       string     `json:"file_id"`
+	FileUniqueID string     `json:"file_unique_id"`
+	Thumbnail    *PhotoSize `json:"thumbnail,omitempty"`
+	FileName     string     `json:"file_name"`
+	MimeType     string     `json:"mime_type"`
+	FileSize     int        `json:"file_size,omitempty"`
+}
+
+// Story represents a story.
+type Story struct {
+	Chat Chat `json:"chat"`
+	ID   int  `json:"id"`
+}
+
+type Video struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	Width        int    `json:"width"`
+	Height       int    `json:"height"`
+	Duration     int    `json:"duration"`
+
+	Thumbnail      *PhotoSize     `json:"thumbnail,omitempty"`
+	Cover          []PhotoSize    `json:"cover,omitempty"`
+	StartTimestamp int64          `json:"start_timestamp"`
+	Qualities      []VideoQuality `json:"qualities,omitempty"`
+	FileName       string         `json:"file_name,omitempty"`
+	MimeType       string         `json:"mime_type,omitempty"`
+	FileSize       int64          `json:"file_size,omitempty"`
+}
+
+// VideoQuality describes an alternative quality for a video.
+// See https://core.telegram.org/bots/api#videoquality
+type VideoQuality struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	Width        int    `json:"width"`
+	Height       int    `json:"height"`
+	Codec        string `json:"codec"`
+	FileSize     int64  `json:"file_size,omitempty"`
+}
+
+type VideoNote struct {
+	FileID       string     `json:"file_id"`
+	FileUniqueID string     `json:"file_unique_id"`
+	Length       int        `json:"length"`
+	Duration     int        `json:"duration"`
+	Thumbnail    *PhotoSize `json:"thumbnail,omitempty"`
+	FileSize     int64      `json:"file_size,omitempty"`
+}
+
+type Voice struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	Duration     int    `json:"duration"`
+	MimeType     string `json:"mime_type,omitempty"`
+	FileSize     int    `json:"file_size,omitempty"`
+}
+
+type PaidMediaInfo struct {
+	StarCount int         `json:"star_count"`
+	PaidMedia []PaidMedia `json:"paid_media"`
+}
+type PaidMediaType string
+
+const (
+	PaidMediaPreviewType PaidMediaType = "preview"
+	PaidMediaPhotoType   PaidMediaType = "photo"
+	PaidMediaVideoType   PaidMediaType = "video"
+)
+
+type PaidMedia struct {
+	Type PaidMediaType `json:"type,omitempty"`
+
+	Width    int `json:"width,omitempty"`
+	Height   int `json:"height,omitempty"`
+	Duration int `json:"duration,omitempty"`
+
+	Photo []PhotoSize `json:"photo,omitempty"`
+
+	Video *Video `json:"video,omitempty"`
+}
+
+type Contact struct {
+	PhoneNumber string `json:"phone_number"`
+	FirstName   string `json:"first_name"`
+	LastName    string `json:"last_name,omitempty"`
+	UserID      int64  `json:"user_id,omitempty"`
+	Vcard       string `json:"vcard,omitempty"`
+}
+
+type Dice struct {
+	Emoji string `json:"emoji"`
+	Value int    `json:"value"`
+}
+
+// PollOption contains information about one answer option in a poll.
+// See https://core.telegram.org/bots/api#polloption
+type PollOption struct {
+	PersistentID string          `json:"persistent_id"`
+	Text         string          `json:"text"`
+	TextEntities []MessageEntity `json:"text_entities"`
+	VoterCount   int             `json:"voter_count"`
+
+	AddedByUser  *User `json:"added_by_user,omitempty"`
+	AddedByChat  *Chat `json:"added_by_chat,omitempty"`
+	AdditionDate int   `json:"addition_date,omitempty"`
+}
+
+// InputPollOption contains information about one answer option in a poll to be sent.
+// See https://core.telegram.org/bots/api#inputpolloption
+type InputPollOption struct {
+	Text          string          `json:"text"`
+	TextParseMode ParseMode       `json:"text_parse_mode,omitempty"`
+	TextEntities  []MessageEntity `json:"text_entities,omitempty"`
+}
+
+type PollOptionAdded struct {
+	PollMessage        *InaccessibleMessage `json:"poll_message,omitempty"`
+	OptionPersistentID string               `json:"option_persistent_id"`
+	OptionText         string               `json:"option_text"`
+	OptionTextEntities []MessageEntity      `json:"option_text_entities,omitempty"`
+}
+
+type PollOptionDeleted struct {
+	PollMessage        *InaccessibleMessage `json:"poll_message,omitempty"`
+	OptionPersistentID string               `json:"option_persistent_id"`
+	OptionText         string               `json:"option_text"`
+	OptionTextEntities []MessageEntity      `json:"option_text_entities,omitempty"`
+}
+
+// PollType represents the type of a poll.
+type PollType string
+
+const (
+	// PollTypeRegular identifies a regular poll.
+	PollTypeRegular PollType = "regular"
+	// PollTypeQuiz identifies a quiz poll.
+	PollTypeQuiz PollType = "quiz"
+)
+
+// PollAnswer represents an answer of a user in a poll.
+// See https://core.telegram.org/bots/api#pollanswer
+type PollAnswer struct {
+	PollID              string   `json:"poll_id"`
+	VoterChat           Chat     `json:"voter_chat"`
+	User                User     `json:"user"`
+	OptionIDs           []int    `json:"option_ids"`
+	OptionPersistentIDs []string `json:"option_persistent_ids"`
+}
+
+// Poll contains information about a poll.
+// See https://core.telegram.org/bots/api#poll
+type Poll struct {
+	ID               string          `json:"id"`
+	Question         string          `json:"question"`
+	QuestionEntities []MessageEntity `json:"question_entities"`
+	Options          []PollOption    `json:"options"`
+	TotalVoterCount  int             `json:"total_voter_count"`
+	IsClosed         bool            `json:"is_closed"`
+	IsAnonymous      bool            `json:"is_anonymous"`
+	Type             PollType        `json:"type"`
+
+	AllowsMultipleAnswers bool            `json:"allows_multiple_answers"`
+	AllowsRevoting        bool            `json:"allows_revoting"`
+	CorrectOptionIDs      []int           `json:"correct_option_ids,omitempty"`
+	Explanation           string          `json:"explanation,omitempty"`
+	ExplanationEntities   []MessageEntity `json:"explanation_entities,omitempty"`
+	OpenPeriod            int             `json:"open_period,omitempty"`
+	CloseDate             int             `json:"close_date,omitempty"`
+	Description           string          `json:"description,omitempty"`
+	DescriptionEntities   []MessageEntity `json:"description_entities,omitempty"`
+}
+
+type ChecklistTask struct {
+	ID              int             `json:"id"`
+	Text            string          `json:"text"`
+	TextEntities    []MessageEntity `json:"text_entities,omitempty"`
+	CompletedByUser *User           `json:"completed_by_user,omitempty"`
+	CompletedByChat *Chat           `json:"completed_by_chat,omitempty"`
+	CompletionDate  int             `json:"completion_date,omitempty"`
+}
+
+type Checklist struct {
+	Title                    string          `json:"title"`
+	TitleEntities            []MessageEntity `json:"title_entities,omitempty"`
+	Tasks                    []ChecklistTask `json:"tasks"`
+	OthersCanAddTasks        bool            `json:"others_can_add_tasks,omitempty"`
+	OthersCanMarkTasksAsDone bool            `json:"others_can_mark_tasks_as_done,omitempty"`
+}
+
+// InputChecklistTask describes a task in a checklist.
+type InputChecklistTask struct {
+	ID           int             `json:"id"`
+	Text         string          `json:"text"`
+	ParseMode    ParseMode       `json:"parse_mode,omitempty"`
+	TextEntities []MessageEntity `json:"text_entities,omitempty"`
+}
+
+// InputChecklist represents a checklist to be sent.
+type InputChecklist struct {
+	Title                   string               `json:"title"`
+	ParseMode               ParseMode            `json:"parse_mode,omitempty"`
+	TitleEntities           []MessageEntity      `json:"title_entities,omitempty"`
+	Tasks                   []InputChecklistTask `json:"tasks"`
+	OtherCanAddTasks        bool                 `json:"other_can_add_tasks,omitempty"`
+	OtherCanMarkTasksAsDone bool                 `json:"other_can_mark_tasks_as_done,omitempty"`
+}
+
+type ChecklistTaskDone struct {
+	ChecklistMessage       *Message `json:"checklist_message,omitempty"`
+	MarkedAsDoneTaskIDs    []int    `json:"marked_as_done_task_ids,omitempty"`
+	MarkedAsNotDoneTaskIDs []int    `json:"marked_as_not_done_task_ids,omitempty"`
+}
+
+type ChecklistTasksAdded struct {
+	ChecklistMessage *Message        `json:"checklist_message,omitempty"`
+	Tasks            []ChecklistTask `json:"tasks"`
+}
+
 // InputMediaType represents the type of input media.
 type InputMediaType string
 
@@ -55,12 +303,12 @@ type InputPaidMedia struct {
 	Type  InputPaidMediaType `json:"type"`
 	Media string             `json:"media"`
 
-	Cover             string `json:"cover"`
-	StartTimestamp    int64  `json:"start_timestamp"`
-	Width             int    `json:"width"`
-	Height            int    `json:"height"`
-	Duration          int    `json:"duration"`
-	SupportsStreaming bool   `json:"supports_streaming"`
+	Cover             *string `json:"cover,omitempty"`
+	StartTimestamp    *int64  `json:"start_timestamp,omitempty"`
+	Width             *int    `json:"width,omitempty"`
+	Height            *int    `json:"height,omitempty"`
+	Duration          *int    `json:"duration,omitempty"`
+	SupportsStreaming *bool   `json:"supports_streaming,omitempty"`
 }
 
 // PhotoSize represents one size of a photo or a file/sticker thumbnail.

tgapi/bot_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SetMyCommandsP holds parameters for the setMyCommands method.
+// SetMyCommands holds parameters for the setMyCommands method.
 // See https://core.telegram.org/bots/api#setmycommands
-type SetMyCommandsP struct {
+type SetMyCommands struct {
 	Commands []BotCommand     `json:"commands"`
 	Scope    *BotCommandScope `json:"scope,omitempty"`
 	Language string           `json:"language_code,omitempty"`
@@ -13,7 +13,7 @@ type SetMyCommandsP struct {
 // SetMyCommands changes the list of the bot's commands.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setmycommands
-func (api *API) SetMyCommands(params SetMyCommandsP) (bool, error) {
+func (api *API) SetMyCommands(params SetMyCommands) (bool, error) {
 	req := NewRequest[bool]("setMyCommands", params)
 	return req.Do(api)
 }
@@ -21,14 +21,14 @@ func (api *API) SetMyCommands(params SetMyCommandsP) (bool, error) {
 // SetMyCommandsWithContext is the context-aware variant of SetMyCommands.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setmycommands
-func (api *API) SetMyCommandsWithContext(ctx context.Context, params SetMyCommandsP) (bool, error) {
+func (api *API) SetMyCommandsWithContext(ctx context.Context, params SetMyCommands) (bool, error) {
 	req := NewRequest[bool]("setMyCommands", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteMyCommandsP holds parameters for the deleteMyCommands method.
+// DeleteMyCommands holds parameters for the deleteMyCommands method.
 // See https://core.telegram.org/bots/api#deletemycommands
-type DeleteMyCommandsP struct {
+type DeleteMyCommands struct {
 	Scope    *BotCommandScope `json:"scope,omitempty"`
 	Language string           `json:"language_code,omitempty"`
 }
@@ -36,7 +36,7 @@ type DeleteMyCommandsP struct {
 // DeleteMyCommands deletes the list of the bot's commands for the given scope and user language.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#deletemycommands
-func (api *API) DeleteMyCommands(params DeleteMyCommandsP) (bool, error) {
+func (api *API) DeleteMyCommands(params DeleteMyCommands) (bool, error) {
 	req := NewRequest[bool]("deleteMyCommands", params)
 	return req.Do(api)
 }
@@ -44,7 +44,7 @@ func (api *API) DeleteMyCommands(params DeleteMyCommandsP) (bool, error) {
 // DeleteMyCommandsWithContext is the context-aware variant of DeleteMyCommands.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletemycommands
-func (api *API) DeleteMyCommandsWithContext(ctx context.Context, params DeleteMyCommandsP) (bool, error) {
+func (api *API) DeleteMyCommandsWithContext(ctx context.Context, params DeleteMyCommands) (bool, error) {
 	req := NewRequest[bool]("deleteMyCommands", params)
 	return req.DoWithContext(ctx, api)
 }
@@ -203,16 +203,16 @@ func (api *API) GetMyShortDescriptionWithContext(ctx context.Context, params Get
 	return req.DoWithContext(ctx, api)
 }
 
-// SetMyProfilePhotoP holds parameters for the setMyProfilePhoto method.
+// SetMyProfilePhoto holds parameters for the setMyProfilePhoto method.
 // See https://core.telegram.org/bots/api#setmyprofilephoto
-type SetMyProfilePhotoP struct {
+type SetMyProfilePhoto struct {
 	Photo InputProfilePhoto `json:"photo"`
 }
 
 // SetMyProfilePhoto changes the bot's profile photo.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setmyprofilephoto
-func (api *API) SetMyProfilePhoto(params SetMyProfilePhotoP) (bool, error) {
+func (api *API) SetMyProfilePhoto(params SetMyProfilePhoto) (bool, error) {
 	req := NewRequest[bool]("setMyProfilePhoto", params)
 	return req.Do(api)
 }
@@ -220,7 +220,7 @@ func (api *API) SetMyProfilePhoto(params SetMyProfilePhotoP) (bool, error) {
 // SetMyProfilePhotoWithContext is the context-aware variant of SetMyProfilePhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setmyprofilephoto
-func (api *API) SetMyProfilePhotoWithContext(ctx context.Context, params SetMyProfilePhotoP) (bool, error) {
+func (api *API) SetMyProfilePhotoWithContext(ctx context.Context, params SetMyProfilePhoto) (bool, error) {
 	req := NewRequest[bool]("setMyProfilePhoto", params)
 	return req.DoWithContext(ctx, api)
 }
@@ -241,17 +241,17 @@ func (api *API) RemoveMyProfilePhotoWithContext(ctx context.Context) (bool, erro
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatMenuButtonP holds parameters for the setChatMenuButton method.
+// SetChatMenuButton holds parameters for the setChatMenuButton method.
 // See https://core.telegram.org/bots/api#setchatmenubutton
-type SetChatMenuButtonP struct {
-	ChatID     int64          `json:"chat_id"`
-	MenuButton MenuButtonType `json:"menu_button"`
+type SetChatMenuButton struct {
+	ChatID     int64       `json:"chat_id,omitempty"`
+	MenuButton *MenuButton `json:"menu_button,omitempty"`
 }
 
 // SetChatMenuButton changes the menu button for a given chat or the default menu button.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setchatmenubutton
-func (api *API) SetChatMenuButton(params SetChatMenuButtonP) (bool, error) {
+func (api *API) SetChatMenuButton(params SetChatMenuButton) (bool, error) {
 	req := NewRequest[bool]("setChatMenuButton", params)
 	return req.Do(api)
 }
@@ -259,35 +259,35 @@ func (api *API) SetChatMenuButton(params SetChatMenuButtonP) (bool, error) {
 // SetChatMenuButtonWithContext is the context-aware variant of SetChatMenuButton.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatmenubutton
-func (api *API) SetChatMenuButtonWithContext(ctx context.Context, params SetChatMenuButtonP) (bool, error) {
+func (api *API) SetChatMenuButtonWithContext(ctx context.Context, params SetChatMenuButton) (bool, error) {
 	req := NewRequest[bool]("setChatMenuButton", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatMenuButtonP holds parameters for the getChatMenuButton method.
+// GetChatMenuButton holds parameters for the getChatMenuButton method.
 // See https://core.telegram.org/bots/api#getchatmenubutton
-type GetChatMenuButtonP struct {
-	ChatID int64 `json:"chat_id"`
+type GetChatMenuButton struct {
+	ChatID int64 `json:"chat_id,omitempty"`
 }
 
 // GetChatMenuButton returns the current menu button for the given chat.
 // See https://core.telegram.org/bots/api#getchatmenubutton
-func (api *API) GetChatMenuButton(params GetChatMenuButtonP) (BaseMenuButton, error) {
-	req := NewRequest[BaseMenuButton]("getChatMenuButton", params)
+func (api *API) GetChatMenuButton(params GetChatMenuButton) (MenuButton, error) {
+	req := NewRequest[MenuButton]("getChatMenuButton", params)
 	return req.Do(api)
 }
 
 // GetChatMenuButtonWithContext is the context-aware variant of GetChatMenuButton.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchatmenubutton
-func (api *API) GetChatMenuButtonWithContext(ctx context.Context, params GetChatMenuButtonP) (BaseMenuButton, error) {
-	req := NewRequest[BaseMenuButton]("getChatMenuButton", params)
+func (api *API) GetChatMenuButtonWithContext(ctx context.Context, params GetChatMenuButton) (MenuButton, error) {
+	req := NewRequest[MenuButton]("getChatMenuButton", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetMyDefaultAdministratorRightsP holds parameters for the setMyDefaultAdministratorRights method.
+// SetMyDefaultAdministratorRights holds parameters for the setMyDefaultAdministratorRights method.
 // See https://core.telegram.org/bots/api#setmydefaultadministratorrights
-type SetMyDefaultAdministratorRightsP struct {
+type SetMyDefaultAdministratorRights struct {
 	Rights      *ChatAdministratorRights `json:"rights"`
 	ForChannels bool                     `json:"for_channels"`
 }
@@ -295,7 +295,7 @@ type SetMyDefaultAdministratorRightsP struct {
 // SetMyDefaultAdministratorRights changes the default administrator rights for the bot.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setmydefaultadministratorrights
-func (api *API) SetMyDefaultAdministratorRights(params SetMyDefaultAdministratorRightsP) (bool, error) {
+func (api *API) SetMyDefaultAdministratorRights(params SetMyDefaultAdministratorRights) (bool, error) {
 	req := NewRequest[bool]("setMyDefaultAdministratorRights", params)
 	return req.Do(api)
 }
@@ -303,20 +303,20 @@ func (api *API) SetMyDefaultAdministratorRights(params SetMyDefaultAdministrator
 // SetMyDefaultAdministratorRightsWithContext is the context-aware variant of SetMyDefaultAdministratorRights.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setmydefaultadministratorrights
-func (api *API) SetMyDefaultAdministratorRightsWithContext(ctx context.Context, params SetMyDefaultAdministratorRightsP) (bool, error) {
+func (api *API) SetMyDefaultAdministratorRightsWithContext(ctx context.Context, params SetMyDefaultAdministratorRights) (bool, error) {
 	req := NewRequest[bool]("setMyDefaultAdministratorRights", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetMyDefaultAdministratorRightsP holds parameters for the getMyDefaultAdministratorRights method.
+// GetMyDefaultAdministratorRights holds parameters for the getMyDefaultAdministratorRights method.
 // See https://core.telegram.org/bots/api#getmydefaultadministratorrights
-type GetMyDefaultAdministratorRightsP struct {
+type GetMyDefaultAdministratorRights struct {
 	ForChannels bool `json:"for_channels"`
 }
 
 // GetMyDefaultAdministratorRights returns the current default administrator rights for the bot.
 // See https://core.telegram.org/bots/api#getmydefaultadministratorrights
-func (api *API) GetMyDefaultAdministratorRights(params GetMyDefaultAdministratorRightsP) (ChatAdministratorRights, error) {
+func (api *API) GetMyDefaultAdministratorRights(params GetMyDefaultAdministratorRights) (ChatAdministratorRights, error) {
 	req := NewRequest[ChatAdministratorRights]("getMyDefaultAdministratorRights", params)
 	return req.Do(api)
 }
@@ -324,7 +324,7 @@ func (api *API) GetMyDefaultAdministratorRights(params GetMyDefaultAdministrator
 // GetMyDefaultAdministratorRightsWithContext is the context-aware variant of GetMyDefaultAdministratorRights.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getmydefaultadministratorrights
-func (api *API) GetMyDefaultAdministratorRightsWithContext(ctx context.Context, params GetMyDefaultAdministratorRightsP) (ChatAdministratorRights, error) {
+func (api *API) GetMyDefaultAdministratorRightsWithContext(ctx context.Context, params GetMyDefaultAdministratorRights) (ChatAdministratorRights, error) {
 	req := NewRequest[ChatAdministratorRights]("getMyDefaultAdministratorRights", params)
 	return req.DoWithContext(ctx, api)
 }
@@ -344,9 +344,9 @@ func (api *API) GetAvailableGiftsWithContext(ctx context.Context) (Gifts, error)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendGiftP holds parameters for the sendGift method.
+// SendGift holds parameters for the sendGift method.
 // See https://core.telegram.org/bots/api#sendgift
-type SendGiftP struct {
+type SendGift struct {
 	UserID        int64           `json:"user_id,omitempty"`
 	ChatID        int64           `json:"chat_id,omitempty"`
 	GiftID        string          `json:"gift_id"`
@@ -359,7 +359,7 @@ type SendGiftP struct {
 // SendGift sends a gift to the given user or chat.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#sendgift
-func (api *API) SendGift(params SendGiftP) (bool, error) {
+func (api *API) SendGift(params SendGift) (bool, error) {
 	req := NewRequest[bool]("sendGift", params)
 	return req.Do(api)
 }
@@ -367,14 +367,14 @@ func (api *API) SendGift(params SendGiftP) (bool, error) {
 // SendGiftWithContext is the context-aware variant of SendGift.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendgift
-func (api *API) SendGiftWithContext(ctx context.Context, params SendGiftP) (bool, error) {
+func (api *API) SendGiftWithContext(ctx context.Context, params SendGift) (bool, error) {
 	req := NewRequest[bool]("sendGift", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GiftPremiumSubscriptionP holds parameters for the giftPremiumSubscription method.
+// GiftPremiumSubscription holds parameters for the giftPremiumSubscription method.
 // See https://core.telegram.org/bots/api#giftpremiumsubscription
-type GiftPremiumSubscriptionP struct {
+type GiftPremiumSubscription struct {
 	UserID        int64           `json:"user_id"`
 	MonthCount    int             `json:"month_count"`
 	StarCount     int             `json:"star_count"`
@@ -386,7 +386,7 @@ type GiftPremiumSubscriptionP struct {
 // GiftPremiumSubscription gifts a Telegram Premium subscription to the user.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#giftpremiumsubscription
-func (api *API) GiftPremiumSubscription(params GiftPremiumSubscriptionP) (bool, error) {
+func (api *API) GiftPremiumSubscription(params GiftPremiumSubscription) (bool, error) {
 	req := NewRequest[bool]("giftPremiumSubscription", params)
 	return req.Do(api)
 }
@@ -394,7 +394,7 @@ func (api *API) GiftPremiumSubscription(params GiftPremiumSubscriptionP) (bool,
 // GiftPremiumSubscriptionWithContext is the context-aware variant of GiftPremiumSubscription.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#giftpremiumsubscription
-func (api *API) GiftPremiumSubscriptionWithContext(ctx context.Context, params GiftPremiumSubscriptionP) (bool, error) {
+func (api *API) GiftPremiumSubscriptionWithContext(ctx context.Context, params GiftPremiumSubscription) (bool, error) {
 	req := NewRequest[bool]("giftPremiumSubscription", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/bot_types.go

@@ -54,7 +54,9 @@ type BotShortDescription struct {
 type InputProfilePhotoType string
 
 const (
-	InputProfilePhotoStaticType   InputProfilePhotoType = "static"
+	// InputProfilePhotoStaticType identifies a static profile photo input.
+	InputProfilePhotoStaticType InputProfilePhotoType = "static"
+	// InputProfilePhotoAnimatedType identifies an animated profile photo input.
 	InputProfilePhotoAnimatedType InputProfilePhotoType = "animated"
 )
 
@@ -75,17 +77,20 @@ type InputProfilePhoto struct {
 type MenuButtonType string
 
 const (
+	// MenuButtonCommandsType identifies a commands menu button.
 	MenuButtonCommandsType MenuButtonType = "commands"
-	MenuButtonWebAppType   MenuButtonType = "web_app"
-	MenuButtonDefaultType  MenuButtonType = "default"
+	// MenuButtonWebAppType identifies a web app menu button.
+	MenuButtonWebAppType MenuButtonType = "web_app"
+	// MenuButtonDefaultType identifies Telegram's default menu button.
+	MenuButtonDefaultType MenuButtonType = "default"
 )
 
-// BaseMenuButton represents a menu button.
+// MenuButton represents a menu button.
 // See https://core.telegram.org/bots/api#menubutton
-type BaseMenuButton struct {
+type MenuButton struct {
 	Type MenuButtonType `json:"type"`
 
 	// WebApp fields (for web_app button)
-	Text   string     `json:"text"`
-	WebApp WebAppInfo `json:"web_app"`
+	Text   *string     `json:"text"`
+	WebApp *WebAppInfo `json:"web_app"`
 }

tgapi/business_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// VerifyUserP holds parameters for the verifyUser method.
+// VerifyUser holds parameters for the verifyUser method.
 // See https://core.telegram.org/bots/api#verifyuser
-type VerifyUserP struct {
+type VerifyUser struct {
 	UserID            int64  `json:"user_id"`
 	CustomDescription string `json:"custom_description,omitempty"`
 }
@@ -12,7 +12,7 @@ type VerifyUserP struct {
 // VerifyUser verifies a user.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#verifyuser
-func (api *API) VerifyUser(params VerifyUserP) (bool, error) {
+func (api *API) VerifyUser(params VerifyUser) (bool, error) {
 	req := NewRequest[bool]("verifyUser", params)
 	return req.Do(api)
 }
@@ -20,14 +20,14 @@ func (api *API) VerifyUser(params VerifyUserP) (bool, error) {
 // VerifyUserWithContext is the context-aware variant of VerifyUser.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#verifyuser
-func (api *API) VerifyUserWithContext(ctx context.Context, params VerifyUserP) (bool, error) {
+func (api *API) VerifyUserWithContext(ctx context.Context, params VerifyUser) (bool, error) {
 	req := NewRequest[bool]("verifyUser", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// VerifyChatP holds parameters for the verifyChat method.
+// VerifyChat holds parameters for the verifyChat method.
 // See https://core.telegram.org/bots/api#verifychat
-type VerifyChatP struct {
+type VerifyChat struct {
 	ChatID            int64  `json:"chat_id"`
 	CustomDescription string `json:"custom_description,omitempty"`
 }
@@ -35,7 +35,7 @@ type VerifyChatP struct {
 // VerifyChat verifies a chat.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#verifychat
-func (api *API) VerifyChat(params VerifyChatP) (bool, error) {
+func (api *API) VerifyChat(params VerifyChat) (bool, error) {
 	req := NewRequest[bool]("verifyChat", params)
 	return req.Do(api)
 }
@@ -43,21 +43,21 @@ func (api *API) VerifyChat(params VerifyChatP) (bool, error) {
 // VerifyChatWithContext is the context-aware variant of VerifyChat.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#verifychat
-func (api *API) VerifyChatWithContext(ctx context.Context, params VerifyChatP) (bool, error) {
+func (api *API) VerifyChatWithContext(ctx context.Context, params VerifyChat) (bool, error) {
 	req := NewRequest[bool]("verifyChat", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// RemoveUserVerificationP holds parameters for the removeUserVerification method.
+// RemoveUserVerification holds parameters for the removeUserVerification method.
 // See https://core.telegram.org/bots/api#removeuserverification
-type RemoveUserVerificationP struct {
+type RemoveUserVerification struct {
 	UserID int64 `json:"user_id"`
 }
 
 // RemoveUserVerification removes a user's verification.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#removeuserverification
-func (api *API) RemoveUserVerification(params RemoveUserVerificationP) (bool, error) {
+func (api *API) RemoveUserVerification(params RemoveUserVerification) (bool, error) {
 	req := NewRequest[bool]("removeUserVerification", params)
 	return req.Do(api)
 }
@@ -65,21 +65,21 @@ func (api *API) RemoveUserVerification(params RemoveUserVerificationP) (bool, er
 // RemoveUserVerificationWithContext is the context-aware variant of RemoveUserVerification.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#removeuserverification
-func (api *API) RemoveUserVerificationWithContext(ctx context.Context, params RemoveUserVerificationP) (bool, error) {
+func (api *API) RemoveUserVerificationWithContext(ctx context.Context, params RemoveUserVerification) (bool, error) {
 	req := NewRequest[bool]("removeUserVerification", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// RemoveChatVerificationP holds parameters for the removeChatVerification method.
+// RemoveChatVerification holds parameters for the removeChatVerification method.
 // See https://core.telegram.org/bots/api#removechatverification
-type RemoveChatVerificationP struct {
+type RemoveChatVerification struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // RemoveChatVerification removes a chat's verification.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#removechatverification
-func (api *API) RemoveChatVerification(params RemoveChatVerificationP) (bool, error) {
+func (api *API) RemoveChatVerification(params RemoveChatVerification) (bool, error) {
 	req := NewRequest[bool]("removeChatVerification", params)
 	return req.Do(api)
 }
@@ -87,14 +87,14 @@ func (api *API) RemoveChatVerification(params RemoveChatVerificationP) (bool, er
 // RemoveChatVerificationWithContext is the context-aware variant of RemoveChatVerification.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#removechatverification
-func (api *API) RemoveChatVerificationWithContext(ctx context.Context, params RemoveChatVerificationP) (bool, error) {
+func (api *API) RemoveChatVerificationWithContext(ctx context.Context, params RemoveChatVerification) (bool, error) {
 	req := NewRequest[bool]("removeChatVerification", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// ReadBusinessMessageP holds parameters for the readBusinessMessage method.
+// ReadBusinessMessage holds parameters for the readBusinessMessage method.
 // See https://core.telegram.org/bots/api#readbusinessmessage
-type ReadBusinessMessageP struct {
+type ReadBusinessMessage struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	ChatID               int64  `json:"chat_id"`
 	MessageID            int    `json:"message_id"`
@@ -103,7 +103,7 @@ type ReadBusinessMessageP struct {
 // ReadBusinessMessage marks a business message as read.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#readbusinessmessage
-func (api *API) ReadBusinessMessage(params ReadBusinessMessageP) (bool, error) {
+func (api *API) ReadBusinessMessage(params ReadBusinessMessage) (bool, error) {
 	req := NewRequest[bool]("readBusinessMessage", params)
 	return req.Do(api)
 }
@@ -111,20 +111,20 @@ func (api *API) ReadBusinessMessage(params ReadBusinessMessageP) (bool, error) {
 // ReadBusinessMessageWithContext is the context-aware variant of ReadBusinessMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#readbusinessmessage
-func (api *API) ReadBusinessMessageWithContext(ctx context.Context, params ReadBusinessMessageP) (bool, error) {
+func (api *API) ReadBusinessMessageWithContext(ctx context.Context, params ReadBusinessMessage) (bool, error) {
 	req := NewRequest[bool]("readBusinessMessage", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetBusinessConnectionP holds parameters for the getBusinessConnection method.
+// GetBusinessConnection holds parameters for the getBusinessConnection method.
 // See https://core.telegram.org/bots/api#getbusinessconnection
-type GetBusinessConnectionP struct {
+type GetBusinessConnection struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 }
 
 // GetBusinessConnection returns information about a business connection.
 // See https://core.telegram.org/bots/api#getbusinessconnection
-func (api *API) GetBusinessConnection(params GetBusinessConnectionP) (BusinessConnection, error) {
+func (api *API) GetBusinessConnection(params GetBusinessConnection) (BusinessConnection, error) {
 	req := NewRequest[BusinessConnection]("getBusinessConnection", params)
 	return req.Do(api)
 }
@@ -132,14 +132,14 @@ func (api *API) GetBusinessConnection(params GetBusinessConnectionP) (BusinessCo
 // GetBusinessConnectionWithContext is the context-aware variant of GetBusinessConnection.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getbusinessconnection
-func (api *API) GetBusinessConnectionWithContext(ctx context.Context, params GetBusinessConnectionP) (BusinessConnection, error) {
+func (api *API) GetBusinessConnectionWithContext(ctx context.Context, params GetBusinessConnection) (BusinessConnection, error) {
 	req := NewRequest[BusinessConnection]("getBusinessConnection", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteBusinessMessagesP holds parameters for the deleteBusinessMessages method.
+// DeleteBusinessMessages holds parameters for the deleteBusinessMessages method.
 // See https://core.telegram.org/bots/api#deletebusinessmessages
-type DeleteBusinessMessagesP struct {
+type DeleteBusinessMessages struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	MessageIDs           []int  `json:"message_ids"`
 }
@@ -147,7 +147,7 @@ type DeleteBusinessMessagesP struct {
 // DeleteBusinessMessages deletes business messages.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#deletebusinessmessages
-func (api *API) DeleteBusinessMessages(params DeleteBusinessMessagesP) (bool, error) {
+func (api *API) DeleteBusinessMessages(params DeleteBusinessMessages) (bool, error) {
 	req := NewRequest[bool]("deleteBusinessMessages", params)
 	return req.Do(api)
 }
@@ -155,14 +155,14 @@ func (api *API) DeleteBusinessMessages(params DeleteBusinessMessagesP) (bool, er
 // DeleteBusinessMessagesWithContext is the context-aware variant of DeleteBusinessMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletebusinessmessages
-func (api *API) DeleteBusinessMessagesWithContext(ctx context.Context, params DeleteBusinessMessagesP) (bool, error) {
+func (api *API) DeleteBusinessMessagesWithContext(ctx context.Context, params DeleteBusinessMessages) (bool, error) {
 	req := NewRequest[bool]("deleteBusinessMessages", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetBusinessAccountNameP holds parameters for the setBusinessAccountName method.
+// SetBusinessAccountName holds parameters for the setBusinessAccountName method.
 // See https://core.telegram.org/bots/api#setbusinessaccountname
-type SetBusinessAccountNameP struct {
+type SetBusinessAccountName struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	FirstName            string `json:"first_name"`
 	LastName             string `json:"last_name,omitempty"`
@@ -171,7 +171,7 @@ type SetBusinessAccountNameP struct {
 // SetBusinessAccountName sets the first and last name of a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setbusinessaccountname
-func (api *API) SetBusinessAccountName(params SetBusinessAccountNameP) (bool, error) {
+func (api *API) SetBusinessAccountName(params SetBusinessAccountName) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountName", params)
 	return req.Do(api)
 }
@@ -179,14 +179,14 @@ func (api *API) SetBusinessAccountName(params SetBusinessAccountNameP) (bool, er
 // SetBusinessAccountNameWithContext is the context-aware variant of SetBusinessAccountName.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setbusinessaccountname
-func (api *API) SetBusinessAccountNameWithContext(ctx context.Context, params SetBusinessAccountNameP) (bool, error) {
+func (api *API) SetBusinessAccountNameWithContext(ctx context.Context, params SetBusinessAccountName) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountName", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetBusinessAccountUsernameP holds parameters for the setBusinessAccountUsername method.
+// SetBusinessAccountUsername holds parameters for the setBusinessAccountUsername method.
 // See https://core.telegram.org/bots/api#setbusinessaccountusername
-type SetBusinessAccountUsernameP struct {
+type SetBusinessAccountUsername struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	Username             string `json:"username,omitempty"`
 }
@@ -194,7 +194,7 @@ type SetBusinessAccountUsernameP struct {
 // SetBusinessAccountUsername sets the username of a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setbusinessaccountusername
-func (api *API) SetBusinessAccountUsername(params SetBusinessAccountUsernameP) (bool, error) {
+func (api *API) SetBusinessAccountUsername(params SetBusinessAccountUsername) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountUsername", params)
 	return req.Do(api)
 }
@@ -202,14 +202,14 @@ func (api *API) SetBusinessAccountUsername(params SetBusinessAccountUsernameP) (
 // SetBusinessAccountUsernameWithContext is the context-aware variant of SetBusinessAccountUsername.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setbusinessaccountusername
-func (api *API) SetBusinessAccountUsernameWithContext(ctx context.Context, params SetBusinessAccountUsernameP) (bool, error) {
+func (api *API) SetBusinessAccountUsernameWithContext(ctx context.Context, params SetBusinessAccountUsername) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountUsername", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetBusinessAccountBioP holds parameters for the setBusinessAccountBio method.
+// SetBusinessAccountBio holds parameters for the setBusinessAccountBio method.
 // See https://core.telegram.org/bots/api#setbusinessaccountbio
-type SetBusinessAccountBioP struct {
+type SetBusinessAccountBio struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	Bio                  string `json:"bio,omitempty"`
 }
@@ -217,7 +217,7 @@ type SetBusinessAccountBioP struct {
 // SetBusinessAccountBio sets the bio of a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setbusinessaccountbio
-func (api *API) SetBusinessAccountBio(params SetBusinessAccountBioP) (bool, error) {
+func (api *API) SetBusinessAccountBio(params SetBusinessAccountBio) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountBio", params)
 	return req.Do(api)
 }
@@ -225,7 +225,7 @@ func (api *API) SetBusinessAccountBio(params SetBusinessAccountBioP) (bool, erro
 // SetBusinessAccountBioWithContext is the context-aware variant of SetBusinessAccountBio.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setbusinessaccountbio
-func (api *API) SetBusinessAccountBioWithContext(ctx context.Context, params SetBusinessAccountBioP) (bool, error) {
+func (api *API) SetBusinessAccountBioWithContext(ctx context.Context, params SetBusinessAccountBio) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountBio", params)
 	return req.DoWithContext(ctx, api)
 }
@@ -254,9 +254,9 @@ func (api *API) SetBusinessAccountProfilePhotoWithContext(ctx context.Context, p
 	return req.DoWithContext(ctx, api)
 }
 
-// RemoveBusinessAccountProfilePhotoP holds parameters for the removeBusinessAccountProfilePhoto method.
+// RemoveBusinessAccountProfilePhoto holds parameters for the removeBusinessAccountProfilePhoto method.
 // See https://core.telegram.org/bots/api#removebusinessaccountprofilephoto
-type RemoveBusinessAccountProfilePhotoP struct {
+type RemoveBusinessAccountProfilePhoto struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	IsPublic             bool   `json:"is_public,omitempty"`
 }
@@ -264,7 +264,7 @@ type RemoveBusinessAccountProfilePhotoP struct {
 // RemoveBusinessAccountProfilePhoto removes the profile photo of a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#removebusinessaccountprofilephoto
-func (api *API) RemoveBusinessAccountProfilePhoto(params RemoveBusinessAccountProfilePhotoP) (bool, error) {
+func (api *API) RemoveBusinessAccountProfilePhoto(params RemoveBusinessAccountProfilePhoto) (bool, error) {
 	req := NewRequest[bool]("removeBusinessAccountProfilePhoto", params)
 	return req.Do(api)
 }
@@ -272,14 +272,14 @@ func (api *API) RemoveBusinessAccountProfilePhoto(params RemoveBusinessAccountPr
 // RemoveBusinessAccountProfilePhotoWithContext is the context-aware variant of RemoveBusinessAccountProfilePhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#removebusinessaccountprofilephoto
-func (api *API) RemoveBusinessAccountProfilePhotoWithContext(ctx context.Context, params RemoveBusinessAccountProfilePhotoP) (bool, error) {
+func (api *API) RemoveBusinessAccountProfilePhotoWithContext(ctx context.Context, params RemoveBusinessAccountProfilePhoto) (bool, error) {
 	req := NewRequest[bool]("removeBusinessAccountProfilePhoto", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetBusinessAccountGiftSettingsP holds parameters for the setBusinessAccountGiftSettings method.
+// SetBusinessAccountGiftSettings holds parameters for the setBusinessAccountGiftSettings method.
 // See https://core.telegram.org/bots/api#setbusinessaccountgiftsettings
-type SetBusinessAccountGiftSettingsP struct {
+type SetBusinessAccountGiftSettings struct {
 	BusinessConnectionID string            `json:"business_connection_id"`
 	ShowGiftButton       bool              `json:"show_gift_button"`
 	AcceptedGiftTypes    AcceptedGiftTypes `json:"accepted_gift_types"`
@@ -288,7 +288,7 @@ type SetBusinessAccountGiftSettingsP struct {
 // SetBusinessAccountGiftSettings sets gift settings for a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setbusinessaccountgiftsettings
-func (api *API) SetBusinessAccountGiftSettings(params SetBusinessAccountGiftSettingsP) (bool, error) {
+func (api *API) SetBusinessAccountGiftSettings(params SetBusinessAccountGiftSettings) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountGiftSettings", params)
 	return req.Do(api)
 }
@@ -296,20 +296,20 @@ func (api *API) SetBusinessAccountGiftSettings(params SetBusinessAccountGiftSett
 // SetBusinessAccountGiftSettingsWithContext is the context-aware variant of SetBusinessAccountGiftSettings.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setbusinessaccountgiftsettings
-func (api *API) SetBusinessAccountGiftSettingsWithContext(ctx context.Context, params SetBusinessAccountGiftSettingsP) (bool, error) {
+func (api *API) SetBusinessAccountGiftSettingsWithContext(ctx context.Context, params SetBusinessAccountGiftSettings) (bool, error) {
 	req := NewRequest[bool]("setBusinessAccountGiftSettings", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetBusinessAccountStarBalanceP holds parameters for the getBusinessAccountStarBalance method.
+// GetBusinessAccountStarBalance holds parameters for the getBusinessAccountStarBalance method.
 // See https://core.telegram.org/bots/api#getbusinessaccountstarbalance
-type GetBusinessAccountStarBalanceP struct {
+type GetBusinessAccountStarBalance struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 }
 
 // GetBusinessAccountStarBalance returns the star balance of a business account.
 // See https://core.telegram.org/bots/api#getbusinessaccountstarbalance
-func (api *API) GetBusinessAccountStarBalance(params GetBusinessAccountStarBalanceP) (StarAmount, error) {
+func (api *API) GetBusinessAccountStarBalance(params GetBusinessAccountStarBalance) (StarAmount, error) {
 	req := NewRequest[StarAmount]("getBusinessAccountStarBalance", params)
 	return req.Do(api)
 }
@@ -317,14 +317,14 @@ func (api *API) GetBusinessAccountStarBalance(params GetBusinessAccountStarBalan
 // GetBusinessAccountStarBalanceWithContext is the context-aware variant of GetBusinessAccountStarBalance.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getbusinessaccountstarbalance
-func (api *API) GetBusinessAccountStarBalanceWithContext(ctx context.Context, params GetBusinessAccountStarBalanceP) (StarAmount, error) {
+func (api *API) GetBusinessAccountStarBalanceWithContext(ctx context.Context, params GetBusinessAccountStarBalance) (StarAmount, error) {
 	req := NewRequest[StarAmount]("getBusinessAccountStarBalance", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// TransferBusinessAccountStarsP holds parameters for the transferBusinessAccountStars method.
+// TransferBusinessAccountStars holds parameters for the transferBusinessAccountStars method.
 // See https://core.telegram.org/bots/api#transferbusinessaccountstars
-type TransferBusinessAccountStarsP struct {
+type TransferBusinessAccountStars struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	StarCount            int    `json:"star_count"`
 }
@@ -332,7 +332,7 @@ type TransferBusinessAccountStarsP struct {
 // TransferBusinessAccountStars transfers stars from a business account.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#transferbusinessaccountstars
-func (api *API) TransferBusinessAccountStars(params TransferBusinessAccountStarsP) (bool, error) {
+func (api *API) TransferBusinessAccountStars(params TransferBusinessAccountStars) (bool, error) {
 	req := NewRequest[bool]("transferBusinessAccountStars", params)
 	return req.Do(api)
 }
@@ -340,14 +340,14 @@ func (api *API) TransferBusinessAccountStars(params TransferBusinessAccountStars
 // TransferBusinessAccountStarsWithContext is the context-aware variant of TransferBusinessAccountStars.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#transferbusinessaccountstars
-func (api *API) TransferBusinessAccountStarsWithContext(ctx context.Context, params TransferBusinessAccountStarsP) (bool, error) {
+func (api *API) TransferBusinessAccountStarsWithContext(ctx context.Context, params TransferBusinessAccountStars) (bool, error) {
 	req := NewRequest[bool]("transferBusinessAccountStars", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetBusinessAccountGiftsP holds parameters for the getBusinessAccountGifts method.
+// GetBusinessAccountGifts holds parameters for the getBusinessAccountGifts method.
 // See https://core.telegram.org/bots/api#getbusinessaccountgifts
-type GetBusinessAccountGiftsP struct {
+type GetBusinessAccountGifts struct {
 	BusinessConnectionID        string `json:"business_connection_id"`
 	ExcludeUnsaved              bool   `json:"exclude_unsaved,omitempty"`
 	ExcludeSaved                bool   `json:"exclude_saved,omitempty"`
@@ -363,7 +363,7 @@ type GetBusinessAccountGiftsP struct {
 
 // GetBusinessAccountGifts returns gifts owned by a business account.
 // See https://core.telegram.org/bots/api#getbusinessaccountgifts
-func (api *API) GetBusinessAccountGifts(params GetBusinessAccountGiftsP) (OwnedGifts, error) {
+func (api *API) GetBusinessAccountGifts(params GetBusinessAccountGifts) (OwnedGifts, error) {
 	req := NewRequest[OwnedGifts]("getBusinessAccountGifts", params)
 	return req.Do(api)
 }
@@ -371,14 +371,14 @@ func (api *API) GetBusinessAccountGifts(params GetBusinessAccountGiftsP) (OwnedG
 // GetBusinessAccountGiftsWithContext is the context-aware variant of GetBusinessAccountGifts.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getbusinessaccountgifts
-func (api *API) GetBusinessAccountGiftsWithContext(ctx context.Context, params GetBusinessAccountGiftsP) (OwnedGifts, error) {
+func (api *API) GetBusinessAccountGiftsWithContext(ctx context.Context, params GetBusinessAccountGifts) (OwnedGifts, error) {
 	req := NewRequest[OwnedGifts]("getBusinessAccountGifts", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// ConvertGiftToStarsP holds parameters for the convertGiftToStars method.
+// ConvertGiftToStars holds parameters for the convertGiftToStars method.
 // See https://core.telegram.org/bots/api#convertgifttostars
-type ConvertGiftToStarsP struct {
+type ConvertGiftToStars struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	OwnedGiftID          string `json:"owned_gift_id"`
 }
@@ -386,7 +386,7 @@ type ConvertGiftToStarsP struct {
 // ConvertGiftToStars converts a gift to Telegram Stars.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#convertgifttostars
-func (api *API) ConvertGiftToStars(params ConvertGiftToStarsP) (bool, error) {
+func (api *API) ConvertGiftToStars(params ConvertGiftToStars) (bool, error) {
 	req := NewRequest[bool]("convertGiftToStars", params)
 	return req.Do(api)
 }
@@ -394,14 +394,14 @@ func (api *API) ConvertGiftToStars(params ConvertGiftToStarsP) (bool, error) {
 // ConvertGiftToStarsWithContext is the context-aware variant of ConvertGiftToStars.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#convertgifttostars
-func (api *API) ConvertGiftToStarsWithContext(ctx context.Context, params ConvertGiftToStarsP) (bool, error) {
+func (api *API) ConvertGiftToStarsWithContext(ctx context.Context, params ConvertGiftToStars) (bool, error) {
 	req := NewRequest[bool]("convertGiftToStars", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// UpgradeGiftP holds parameters for the upgradeGift method.
+// UpgradeGift holds parameters for the upgradeGift method.
 // See https://core.telegram.org/bots/api#upgradegift
-type UpgradeGiftP struct {
+type UpgradeGift struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	OwnedGiftID          string `json:"owned_gift_id"`
 	KeepOriginalDetails  bool   `json:"keep_original_details,omitempty"`
@@ -411,7 +411,7 @@ type UpgradeGiftP struct {
 // UpgradeGift upgrades a gift.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#upgradegift
-func (api *API) UpgradeGift(params UpgradeGiftP) (bool, error) {
+func (api *API) UpgradeGift(params UpgradeGift) (bool, error) {
 	req := NewRequest[bool]("upgradeGift", params)
 	return req.Do(api)
 }
@@ -419,14 +419,14 @@ func (api *API) UpgradeGift(params UpgradeGiftP) (bool, error) {
 // UpgradeGiftWithContext is the context-aware variant of UpgradeGift.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#upgradegift
-func (api *API) UpgradeGiftWithContext(ctx context.Context, params UpgradeGiftP) (bool, error) {
+func (api *API) UpgradeGiftWithContext(ctx context.Context, params UpgradeGift) (bool, error) {
 	req := NewRequest[bool]("upgradeGift", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// TransferGiftP holds parameters for the transferGift method.
+// TransferGift holds parameters for the transferGift method.
 // See https://core.telegram.org/bots/api#transfergift
-type TransferGiftP struct {
+type TransferGift struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	OwnedGiftID          string `json:"owned_gift_id"`
 	NewOwnerChatID       int64  `json:"new_owner_chat_id"`
@@ -436,7 +436,7 @@ type TransferGiftP struct {
 // TransferGift transfers a gift to another chat.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#transfergift
-func (api *API) TransferGift(params TransferGiftP) (bool, error) {
+func (api *API) TransferGift(params TransferGift) (bool, error) {
 	req := NewRequest[bool]("transferGift", params)
 	return req.Do(api)
 }
@@ -444,14 +444,14 @@ func (api *API) TransferGift(params TransferGiftP) (bool, error) {
 // TransferGiftWithContext is the context-aware variant of TransferGift.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#transfergift
-func (api *API) TransferGiftWithContext(ctx context.Context, params TransferGiftP) (bool, error) {
+func (api *API) TransferGiftWithContext(ctx context.Context, params TransferGift) (bool, error) {
 	req := NewRequest[bool]("transferGift", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// PostStoryP holds parameters for the postStory method.
+// PostStory holds parameters for the postStory method.
 // See https://core.telegram.org/bots/api#poststory
-type PostStoryP struct {
+type PostStory struct {
 	BusinessConnectionID string            `json:"business_connection_id"`
 	Content              InputStoryContent `json:"content"`
 	ActivePeriod         int               `json:"active_period"`
@@ -465,39 +465,24 @@ type PostStoryP struct {
 	ProtectContent bool `json:"protect_content,omitempty"`
 }
 
-// PostStoryPhoto posts a story with a photo.
+// PostStory posts a story with a photo.
 // See https://core.telegram.org/bots/api#poststory
-func (api *API) PostStoryPhoto(params PostStoryP) (Story, error) {
+func (api *API) PostStory(params PostStory) (Story, error) {
 	req := NewRequest[Story]("postStory", params)
 	return req.Do(api)
 }
 
-// PostStoryPhotoWithContext is the context-aware variant of PostStoryPhoto.
+// PostStoryWithContext is the context-aware variant of PostStoryPhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#poststory
-func (api *API) PostStoryPhotoWithContext(ctx context.Context, params PostStoryP) (Story, error) {
+func (api *API) PostStoryWithContext(ctx context.Context, params PostStory) (Story, error) {
 	req := NewRequest[Story]("postStory", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// PostStoryVideo posts a story with a video.
-// See https://core.telegram.org/bots/api#poststory
-func (api *API) PostStoryVideo(params PostStoryP) (Story, error) {
-	req := NewRequest[Story]("postStory", params)
-	return req.Do(api)
-}
-
-// PostStoryVideoWithContext is the context-aware variant of PostStoryVideo.
-// It executes the same request but uses ctx for cancellation and deadlines.
-// See https://core.telegram.org/bots/api#poststory
-func (api *API) PostStoryVideoWithContext(ctx context.Context, params PostStoryP) (Story, error) {
-	req := NewRequest[Story]("postStory", params)
-	return req.DoWithContext(ctx, api)
-}
-
-// RepostStoryP holds parameters for the repostStory method.
+// RepostStory holds parameters for the repostStory method.
 // See https://core.telegram.org/bots/api#repoststory
-type RepostStoryP struct {
+type RepostStory struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	FromChatID           int64  `json:"from_chat_id"`
 	FromStoryID          int    `json:"from_story_id"`
@@ -509,7 +494,7 @@ type RepostStoryP struct {
 // RepostStory reposts a story from another chat.
 // Returns the reposted story.
 // See https://core.telegram.org/bots/api#repoststory
-func (api *API) RepostStory(params RepostStoryP) (Story, error) {
+func (api *API) RepostStory(params RepostStory) (Story, error) {
 	req := NewRequest[Story]("repostStory", params)
 	return req.Do(api)
 }
@@ -517,14 +502,14 @@ func (api *API) RepostStory(params RepostStoryP) (Story, error) {
 // RepostStoryWithContext is the context-aware variant of RepostStory.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#repoststory
-func (api *API) RepostStoryWithContext(ctx context.Context, params RepostStoryP) (Story, error) {
+func (api *API) RepostStoryWithContext(ctx context.Context, params RepostStory) (Story, error) {
 	req := NewRequest[Story]("repostStory", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditStoryP holds parameters for the editStory method.
+// EditStory holds parameters for the editStory method.
 // See https://core.telegram.org/bots/api#editstory
-type EditStoryP struct {
+type EditStory struct {
 	BusinessConnectionID string            `json:"business_connection_id"`
 	StoryID              int               `json:"story_id"`
 	Content              InputStoryContent `json:"content"`
@@ -538,7 +523,7 @@ type EditStoryP struct {
 // EditStory edits an existing story.
 // Returns the updated story.
 // See https://core.telegram.org/bots/api#editstory
-func (api *API) EditStory(params EditStoryP) (Story, error) {
+func (api *API) EditStory(params EditStory) (Story, error) {
 	req := NewRequest[Story]("editStory", params)
 	return req.Do(api)
 }
@@ -546,14 +531,14 @@ func (api *API) EditStory(params EditStoryP) (Story, error) {
 // EditStoryWithContext is the context-aware variant of EditStory.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editstory
-func (api *API) EditStoryWithContext(ctx context.Context, params EditStoryP) (Story, error) {
+func (api *API) EditStoryWithContext(ctx context.Context, params EditStory) (Story, error) {
 	req := NewRequest[Story]("editStory", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteStoryP holds parameters for the deleteStory method.
+// DeleteStory holds parameters for the deleteStory method.
 // See https://core.telegram.org/bots/api#deletestory
-type DeleteStoryP struct {
+type DeleteStory struct {
 	BusinessConnectionID string `json:"business_connection_id"`
 	StoryID              int    `json:"story_id"`
 }
@@ -561,7 +546,7 @@ type DeleteStoryP struct {
 // DeleteStory deletes a story.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#deletestory
-func (api *API) DeleteStory(params DeleteStoryP) (bool, error) {
+func (api *API) DeleteStory(params DeleteStory) (bool, error) {
 	req := NewRequest[bool]("deleteStory", params)
 	return req.Do(api)
 }
@@ -569,7 +554,7 @@ func (api *API) DeleteStory(params DeleteStoryP) (bool, error) {
 // DeleteStoryWithContext is the context-aware variant of DeleteStory.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletestory
-func (api *API) DeleteStoryWithContext(ctx context.Context, params DeleteStoryP) (bool, error) {
+func (api *API) DeleteStoryWithContext(ctx context.Context, params DeleteStory) (bool, error) {
 	req := NewRequest[bool]("deleteStory", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/business_types.go

@@ -72,7 +72,9 @@ type BusinessMessagesDeleted struct {
 type InputStoryContentType string
 
 const (
+	// InputStoryContentPhotoType identifies photo story content.
 	InputStoryContentPhotoType InputStoryContentType = "photo"
+	// InputStoryContentVideoType identifies video story content.
 	InputStoryContentVideoType InputStoryContentType = "video"
 )
 
@@ -106,10 +108,15 @@ type StoryAreaPosition struct {
 type StoryAreaTypeType string
 
 const (
-	StoryAreaTypeLocationType   StoryAreaTypeType = "location"
-	StoryAreaTypeReactionType   StoryAreaTypeType = "suggested_reaction"
-	StoryAreaTypeLinkType       StoryAreaTypeType = "link"
-	StoryAreaTypeWeatherType    StoryAreaTypeType = "weather"
+	// StoryAreaTypeLocationType identifies a location story area.
+	StoryAreaTypeLocationType StoryAreaTypeType = "location"
+	// StoryAreaTypeReactionType identifies a suggested reaction story area.
+	StoryAreaTypeReactionType StoryAreaTypeType = "suggested_reaction"
+	// StoryAreaTypeLinkType identifies a link story area.
+	StoryAreaTypeLinkType StoryAreaTypeType = "link"
+	// StoryAreaTypeWeatherType identifies a weather story area.
+	StoryAreaTypeWeatherType StoryAreaTypeType = "weather"
+	// StoryAreaTypeUniqueGiftType identifies a unique gift story area.
 	StoryAreaTypeUniqueGiftType StoryAreaTypeType = "unique_gift"
 )
 

tgapi/chat_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// BanChatMemberP holds parameters for the banChatMember method.
+// BanChatMember holds parameters for the banChatMember method.
 // See https://core.telegram.org/bots/api#banchatmember
-type BanChatMemberP struct {
+type BanChatMember struct {
 	ChatID         int64 `json:"chat_id"`
 	UserID         int64 `json:"user_id"`
 	UntilDate      int   `json:"until_date,omitempty"`
@@ -14,7 +14,7 @@ type BanChatMemberP struct {
 // BanChatMember bans a user in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#banchatmember
-func (api *API) BanChatMember(params BanChatMemberP) (bool, error) {
+func (api *API) BanChatMember(params BanChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("banChatMember", params, params.ChatID)
 	return req.Do(api)
 }
@@ -22,14 +22,14 @@ func (api *API) BanChatMember(params BanChatMemberP) (bool, error) {
 // BanChatMemberWithContext is the context-aware variant of BanChatMember.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#banchatmember
-func (api *API) BanChatMemberWithContext(ctx context.Context, params BanChatMemberP) (bool, error) {
+func (api *API) BanChatMemberWithContext(ctx context.Context, params BanChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("banChatMember", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// UnbanChatMemberP holds parameters for the unbanChatMember method.
+// UnbanChatMember holds parameters for the unbanChatMember method.
 // See https://core.telegram.org/bots/api#unbanchatmember
-type UnbanChatMemberP struct {
+type UnbanChatMember struct {
 	ChatID       int64 `json:"chat_id"`
 	UserID       int64 `json:"user_id"`
 	OnlyIfBanned bool  `json:"only_if_banned"`
@@ -38,7 +38,7 @@ type UnbanChatMemberP struct {
 // UnbanChatMember unbans a previously banned user in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unbanchatmember
-func (api *API) UnbanChatMember(params UnbanChatMemberP) (bool, error) {
+func (api *API) UnbanChatMember(params UnbanChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("unbanChatMember", params, params.ChatID)
 	return req.Do(api)
 }
@@ -46,14 +46,14 @@ func (api *API) UnbanChatMember(params UnbanChatMemberP) (bool, error) {
 // UnbanChatMemberWithContext is the context-aware variant of UnbanChatMember.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unbanchatmember
-func (api *API) UnbanChatMemberWithContext(ctx context.Context, params UnbanChatMemberP) (bool, error) {
+func (api *API) UnbanChatMemberWithContext(ctx context.Context, params UnbanChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("unbanChatMember", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// RestrictChatMemberP holds parameters for the restrictChatMember method.
+// RestrictChatMember holds parameters for the restrictChatMember method.
 // See https://core.telegram.org/bots/api#restrictchatmember
-type RestrictChatMemberP struct {
+type RestrictChatMember struct {
 	ChatID                        int64           `json:"chat_id"`
 	UserID                        int64           `json:"user_id"`
 	Permissions                   ChatPermissions `json:"permissions"`
@@ -64,7 +64,7 @@ type RestrictChatMemberP struct {
 // RestrictChatMember restricts a user in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#restrictchatmember
-func (api *API) RestrictChatMember(params RestrictChatMemberP) (bool, error) {
+func (api *API) RestrictChatMember(params RestrictChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("restrictChatMember", params, params.ChatID)
 	return req.Do(api)
 }
@@ -72,7 +72,7 @@ func (api *API) RestrictChatMember(params RestrictChatMemberP) (bool, error) {
 // RestrictChatMemberWithContext is the context-aware variant of RestrictChatMember.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#restrictchatmember
-func (api *API) RestrictChatMemberWithContext(ctx context.Context, params RestrictChatMemberP) (bool, error) {
+func (api *API) RestrictChatMemberWithContext(ctx context.Context, params RestrictChatMember) (bool, error) {
 	req := NewRequestWithChatID[bool]("restrictChatMember", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -118,9 +118,9 @@ func (api *API) PromoteChatMemberWithContext(ctx context.Context, params Promote
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatAdministratorCustomTitleP holds parameters for the setChatAdministratorCustomTitle method.
+// SetChatAdministratorCustomTitle holds parameters for the setChatAdministratorCustomTitle method.
 // See https://core.telegram.org/bots/api#setchatadministratorcustomtitle
-type SetChatAdministratorCustomTitleP struct {
+type SetChatAdministratorCustomTitle struct {
 	ChatID      int64  `json:"chat_id"`
 	UserID      int64  `json:"user_id"`
 	CustomTitle string `json:"custom_title"`
@@ -129,7 +129,7 @@ type SetChatAdministratorCustomTitleP struct {
 // SetChatAdministratorCustomTitle sets a custom title for an administrator.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatadministratorcustomtitle
-func (api *API) SetChatAdministratorCustomTitle(params SetChatAdministratorCustomTitleP) (bool, error) {
+func (api *API) SetChatAdministratorCustomTitle(params SetChatAdministratorCustomTitle) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatAdministratorCustomTitle", params, params.ChatID)
 	return req.Do(api)
 }
@@ -137,14 +137,14 @@ func (api *API) SetChatAdministratorCustomTitle(params SetChatAdministratorCusto
 // SetChatAdministratorCustomTitleWithContext is the context-aware variant of SetChatAdministratorCustomTitle.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatadministratorcustomtitle
-func (api *API) SetChatAdministratorCustomTitleWithContext(ctx context.Context, params SetChatAdministratorCustomTitleP) (bool, error) {
+func (api *API) SetChatAdministratorCustomTitleWithContext(ctx context.Context, params SetChatAdministratorCustomTitle) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatAdministratorCustomTitle", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatMemberTagP holds parameters for the setChatMemberTag method.
+// SetChatMemberTag holds parameters for the setChatMemberTag method.
 // See https://core.telegram.org/bots/api#setchatmembertag
-type SetChatMemberTagP struct {
+type SetChatMemberTag struct {
 	ChatID int64  `json:"chat_id"`
 	UserID int64  `json:"user_id"`
 	Tag    string `json:"tag,omitempty"`
@@ -153,7 +153,7 @@ type SetChatMemberTagP struct {
 // SetChatMemberTag sets a tag for a chat member.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatmembertag
-func (api *API) SetChatMemberTag(params SetChatMemberTagP) (bool, error) {
+func (api *API) SetChatMemberTag(params SetChatMemberTag) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatMemberTag", params, params.ChatID)
 	return req.Do(api)
 }
@@ -161,14 +161,14 @@ func (api *API) SetChatMemberTag(params SetChatMemberTagP) (bool, error) {
 // SetChatMemberTagWithContext is the context-aware variant of SetChatMemberTag.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatmembertag
-func (api *API) SetChatMemberTagWithContext(ctx context.Context, params SetChatMemberTagP) (bool, error) {
+func (api *API) SetChatMemberTagWithContext(ctx context.Context, params SetChatMemberTag) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatMemberTag", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// BanChatSenderChatP holds parameters for the banChatSenderChat method.
+// BanChatSenderChat holds parameters for the banChatSenderChat method.
 // See https://core.telegram.org/bots/api#banchatsenderchat
-type BanChatSenderChatP struct {
+type BanChatSenderChat struct {
 	ChatID       int64 `json:"chat_id"`
 	SenderChatID int64 `json:"sender_chat_id"`
 }
@@ -176,7 +176,7 @@ type BanChatSenderChatP struct {
 // BanChatSenderChat bans a channel chat in a supergroup or channel.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#banchatsenderchat
-func (api *API) BanChatSenderChat(params BanChatSenderChatP) (bool, error) {
+func (api *API) BanChatSenderChat(params BanChatSenderChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("banChatSenderChat", params, params.ChatID)
 	return req.Do(api)
 }
@@ -184,14 +184,14 @@ func (api *API) BanChatSenderChat(params BanChatSenderChatP) (bool, error) {
 // BanChatSenderChatWithContext is the context-aware variant of BanChatSenderChat.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#banchatsenderchat
-func (api *API) BanChatSenderChatWithContext(ctx context.Context, params BanChatSenderChatP) (bool, error) {
+func (api *API) BanChatSenderChatWithContext(ctx context.Context, params BanChatSenderChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("banChatSenderChat", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// UnbanChatSenderChatP holds parameters for the unbanChatSenderChat method.
+// UnbanChatSenderChat holds parameters for the unbanChatSenderChat method.
 // See https://core.telegram.org/bots/api#unbanchatsenderchat
-type UnbanChatSenderChatP struct {
+type UnbanChatSenderChat struct {
 	ChatID       int64 `json:"chat_id"`
 	SenderChatID int64 `json:"sender_chat_id"`
 }
@@ -199,7 +199,7 @@ type UnbanChatSenderChatP struct {
 // UnbanChatSenderChat unbans a previously banned channel chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unbanchatsenderchat
-func (api *API) UnbanChatSenderChat(params UnbanChatSenderChatP) (bool, error) {
+func (api *API) UnbanChatSenderChat(params UnbanChatSenderChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("unbanChatSenderChat", params, params.ChatID)
 	return req.Do(api)
 }
@@ -207,14 +207,14 @@ func (api *API) UnbanChatSenderChat(params UnbanChatSenderChatP) (bool, error) {
 // UnbanChatSenderChatWithContext is the context-aware variant of UnbanChatSenderChat.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unbanchatsenderchat
-func (api *API) UnbanChatSenderChatWithContext(ctx context.Context, params UnbanChatSenderChatP) (bool, error) {
+func (api *API) UnbanChatSenderChatWithContext(ctx context.Context, params UnbanChatSenderChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("unbanChatSenderChat", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatPermissionsP holds parameters for the setChatPermissions method.
+// SetChatPermissions holds parameters for the setChatPermissions method.
 // See https://core.telegram.org/bots/api#setchatpermissions
-type SetChatPermissionsP struct {
+type SetChatPermissions struct {
 	ChatID                        int64           `json:"chat_id"`
 	Permissions                   ChatPermissions `json:"permissions"`
 	UseIndependentChatPermissions bool            `json:"use_independent_chat_permissions,omitempty"`
@@ -223,7 +223,7 @@ type SetChatPermissionsP struct {
 // SetChatPermissions sets default chat permissions for all members.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatpermissions
-func (api *API) SetChatPermissions(params SetChatPermissionsP) (bool, error) {
+func (api *API) SetChatPermissions(params SetChatPermissions) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatPermissions", params, params.ChatID)
 	return req.Do(api)
 }
@@ -231,21 +231,21 @@ func (api *API) SetChatPermissions(params SetChatPermissionsP) (bool, error) {
 // SetChatPermissionsWithContext is the context-aware variant of SetChatPermissions.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatpermissions
-func (api *API) SetChatPermissionsWithContext(ctx context.Context, params SetChatPermissionsP) (bool, error) {
+func (api *API) SetChatPermissionsWithContext(ctx context.Context, params SetChatPermissions) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatPermissions", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// ExportChatInviteLinkP holds parameters for the exportChatInviteLink method.
+// ExportChatInviteLink holds parameters for the exportChatInviteLink method.
 // See https://core.telegram.org/bots/api#exportchatinvitelink
-type ExportChatInviteLinkP struct {
+type ExportChatInviteLink struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // ExportChatInviteLink generates a new primary invite link for a chat.
 // Returns the new invite link as string.
 // See https://core.telegram.org/bots/api#exportchatinvitelink
-func (api *API) ExportChatInviteLink(params ExportChatInviteLinkP) (string, error) {
+func (api *API) ExportChatInviteLink(params ExportChatInviteLink) (string, error) {
 	req := NewRequestWithChatID[string]("exportChatInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -253,14 +253,14 @@ func (api *API) ExportChatInviteLink(params ExportChatInviteLinkP) (string, erro
 // ExportChatInviteLinkWithContext is the context-aware variant of ExportChatInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#exportchatinvitelink
-func (api *API) ExportChatInviteLinkWithContext(ctx context.Context, params ExportChatInviteLinkP) (string, error) {
+func (api *API) ExportChatInviteLinkWithContext(ctx context.Context, params ExportChatInviteLink) (string, error) {
 	req := NewRequestWithChatID[string]("exportChatInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// CreateChatInviteLinkP holds parameters for the createChatInviteLink method.
+// CreateChatInviteLink holds parameters for the createChatInviteLink method.
 // See https://core.telegram.org/bots/api#createchatinvitelink
-type CreateChatInviteLinkP struct {
+type CreateChatInviteLink struct {
 	ChatID             int64   `json:"chat_id"`
 	Name               *string `json:"name,omitempty"`
 	ExpireDate         int     `json:"expire_date,omitempty"`
@@ -271,7 +271,7 @@ type CreateChatInviteLinkP struct {
 // CreateChatInviteLink creates an additional invite link for a chat.
 // Returns the created invite link.
 // See https://core.telegram.org/bots/api#createchatinvitelink
-func (api *API) CreateChatInviteLink(params CreateChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) CreateChatInviteLink(params CreateChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("createChatInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -279,14 +279,14 @@ func (api *API) CreateChatInviteLink(params CreateChatInviteLinkP) (ChatInviteLi
 // CreateChatInviteLinkWithContext is the context-aware variant of CreateChatInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#createchatinvitelink
-func (api *API) CreateChatInviteLinkWithContext(ctx context.Context, params CreateChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) CreateChatInviteLinkWithContext(ctx context.Context, params CreateChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("createChatInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditChatInviteLinkP holds parameters for the editChatInviteLink method.
+// EditChatInviteLink holds parameters for the editChatInviteLink method.
 // See https://core.telegram.org/bots/api#editchatinvitelink
-type EditChatInviteLinkP struct {
+type EditChatInviteLink struct {
 	ChatID     int64  `json:"chat_id"`
 	InviteLink string `json:"invite_link"`
 
@@ -299,7 +299,7 @@ type EditChatInviteLinkP struct {
 // EditChatInviteLink edits a non‑primary invite link.
 // Returns the edited invite link.
 // See https://core.telegram.org/bots/api#editchatinvitelink
-func (api *API) EditChatInviteLink(params EditChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) EditChatInviteLink(params EditChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("editChatInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -307,14 +307,14 @@ func (api *API) EditChatInviteLink(params EditChatInviteLinkP) (ChatInviteLink,
 // EditChatInviteLinkWithContext is the context-aware variant of EditChatInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editchatinvitelink
-func (api *API) EditChatInviteLinkWithContext(ctx context.Context, params EditChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) EditChatInviteLinkWithContext(ctx context.Context, params EditChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("editChatInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// CreateChatSubscriptionInviteLinkP holds parameters for the createChatSubscriptionInviteLink method.
+// CreateChatSubscriptionInviteLink holds parameters for the createChatSubscriptionInviteLink method.
 // See https://core.telegram.org/bots/api#createchatsubscriptioninvitelink
-type CreateChatSubscriptionInviteLinkP struct {
+type CreateChatSubscriptionInviteLink struct {
 	ChatID             int64  `json:"chat_id"`
 	Name               string `json:"name,omitempty"`
 	SubscriptionPeriod int    `json:"subscription_period,omitempty"`
@@ -324,7 +324,7 @@ type CreateChatSubscriptionInviteLinkP struct {
 // CreateChatSubscriptionInviteLink creates a subscription invite link for a channel chat.
 // Returns the created invite link.
 // See https://core.telegram.org/bots/api#createchatsubscriptioninvitelink
-func (api *API) CreateChatSubscriptionInviteLink(params CreateChatSubscriptionInviteLinkP) (ChatInviteLink, error) {
+func (api *API) CreateChatSubscriptionInviteLink(params CreateChatSubscriptionInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("createChatSubscriptionInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -332,14 +332,14 @@ func (api *API) CreateChatSubscriptionInviteLink(params CreateChatSubscriptionIn
 // CreateChatSubscriptionInviteLinkWithContext is the context-aware variant of CreateChatSubscriptionInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#createchatsubscriptioninvitelink
-func (api *API) CreateChatSubscriptionInviteLinkWithContext(ctx context.Context, params CreateChatSubscriptionInviteLinkP) (ChatInviteLink, error) {
+func (api *API) CreateChatSubscriptionInviteLinkWithContext(ctx context.Context, params CreateChatSubscriptionInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("createChatSubscriptionInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditChatSubscriptionInviteLinkP holds parameters for the editChatSubscriptionInviteLink method.
+// EditChatSubscriptionInviteLink holds parameters for the editChatSubscriptionInviteLink method.
 // See https://core.telegram.org/bots/api#editchatsubscriptioninvitelink
-type EditChatSubscriptionInviteLinkP struct {
+type EditChatSubscriptionInviteLink struct {
 	ChatID     int64  `json:"chat_id"`
 	InviteLink string `json:"invite_link"`
 	Name       string `json:"name,omitempty"`
@@ -348,7 +348,7 @@ type EditChatSubscriptionInviteLinkP struct {
 // EditChatSubscriptionInviteLink edits a subscription invite link.
 // Returns the edited invite link.
 // See https://core.telegram.org/bots/api#editchatsubscriptioninvitelink
-func (api *API) EditChatSubscriptionInviteLink(params EditChatSubscriptionInviteLinkP) (ChatInviteLink, error) {
+func (api *API) EditChatSubscriptionInviteLink(params EditChatSubscriptionInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("editChatSubscriptionInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -356,14 +356,14 @@ func (api *API) EditChatSubscriptionInviteLink(params EditChatSubscriptionInvite
 // EditChatSubscriptionInviteLinkWithContext is the context-aware variant of EditChatSubscriptionInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editchatsubscriptioninvitelink
-func (api *API) EditChatSubscriptionInviteLinkWithContext(ctx context.Context, params EditChatSubscriptionInviteLinkP) (ChatInviteLink, error) {
+func (api *API) EditChatSubscriptionInviteLinkWithContext(ctx context.Context, params EditChatSubscriptionInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("editChatSubscriptionInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// RevokeChatInviteLinkP holds parameters for the revokeChatInviteLink method.
+// RevokeChatInviteLink holds parameters for the revokeChatInviteLink method.
 // See https://core.telegram.org/bots/api#revokechatinvitelink
-type RevokeChatInviteLinkP struct {
+type RevokeChatInviteLink struct {
 	ChatID     int64  `json:"chat_id"`
 	InviteLink string `json:"invite_link"`
 }
@@ -371,7 +371,7 @@ type RevokeChatInviteLinkP struct {
 // RevokeChatInviteLink revokes an invite link.
 // Returns the revoked invite link object.
 // See https://core.telegram.org/bots/api#revokechatinvitelink
-func (api *API) RevokeChatInviteLink(params RevokeChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) RevokeChatInviteLink(params RevokeChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("revokeChatInviteLink", params, params.ChatID)
 	return req.Do(api)
 }
@@ -379,14 +379,14 @@ func (api *API) RevokeChatInviteLink(params RevokeChatInviteLinkP) (ChatInviteLi
 // RevokeChatInviteLinkWithContext is the context-aware variant of RevokeChatInviteLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#revokechatinvitelink
-func (api *API) RevokeChatInviteLinkWithContext(ctx context.Context, params RevokeChatInviteLinkP) (ChatInviteLink, error) {
+func (api *API) RevokeChatInviteLinkWithContext(ctx context.Context, params RevokeChatInviteLink) (ChatInviteLink, error) {
 	req := NewRequestWithChatID[ChatInviteLink]("revokeChatInviteLink", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// ApproveChatJoinRequestP holds parameters for the approveChatJoinRequest method.
+// ApproveChatJoinRequest holds parameters for the approveChatJoinRequest method.
 // See https://core.telegram.org/bots/api#approvechatjoinrequest
-type ApproveChatJoinRequestP struct {
+type ApproveChatJoinRequest struct {
 	ChatID int64 `json:"chat_id"`
 	UserID int64 `json:"user_id"`
 }
@@ -394,7 +394,7 @@ type ApproveChatJoinRequestP struct {
 // ApproveChatJoinRequest approves a chat join request.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#approvechatjoinrequest
-func (api *API) ApproveChatJoinRequest(params ApproveChatJoinRequestP) (bool, error) {
+func (api *API) ApproveChatJoinRequest(params ApproveChatJoinRequest) (bool, error) {
 	req := NewRequestWithChatID[bool]("approveChatJoinRequest", params, params.ChatID)
 	return req.Do(api)
 }
@@ -402,14 +402,14 @@ func (api *API) ApproveChatJoinRequest(params ApproveChatJoinRequestP) (bool, er
 // ApproveChatJoinRequestWithContext is the context-aware variant of ApproveChatJoinRequest.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#approvechatjoinrequest
-func (api *API) ApproveChatJoinRequestWithContext(ctx context.Context, params ApproveChatJoinRequestP) (bool, error) {
+func (api *API) ApproveChatJoinRequestWithContext(ctx context.Context, params ApproveChatJoinRequest) (bool, error) {
 	req := NewRequestWithChatID[bool]("approveChatJoinRequest", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeclineChatJoinRequestP holds parameters for the declineChatJoinRequest method.
+// DeclineChatJoinRequest holds parameters for the declineChatJoinRequest method.
 // See https://core.telegram.org/bots/api#declinechatjoinrequest
-type DeclineChatJoinRequestP struct {
+type DeclineChatJoinRequest struct {
 	ChatID int64 `json:"chat_id"`
 	UserID int64 `json:"user_id"`
 }
@@ -417,7 +417,7 @@ type DeclineChatJoinRequestP struct {
 // DeclineChatJoinRequest declines a chat join request.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#declinechatjoinrequest
-func (api *API) DeclineChatJoinRequest(params DeclineChatJoinRequestP) (bool, error) {
+func (api *API) DeclineChatJoinRequest(params DeclineChatJoinRequest) (bool, error) {
 	req := NewRequestWithChatID[bool]("declineChatJoinRequest", params, params.ChatID)
 	return req.Do(api)
 }
@@ -425,14 +425,14 @@ func (api *API) DeclineChatJoinRequest(params DeclineChatJoinRequestP) (bool, er
 // DeclineChatJoinRequestWithContext is the context-aware variant of DeclineChatJoinRequest.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#declinechatjoinrequest
-func (api *API) DeclineChatJoinRequestWithContext(ctx context.Context, params DeclineChatJoinRequestP) (bool, error) {
+func (api *API) DeclineChatJoinRequestWithContext(ctx context.Context, params DeclineChatJoinRequest) (bool, error) {
 	req := NewRequestWithChatID[bool]("declineChatJoinRequest", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatPhotoP holds parameters for the setChatPhoto method.
+// SetChatPhoto holds parameters for the setChatPhoto method.
 // See https://core.telegram.org/bots/api#setchatphoto
-type SetChatPhotoP struct {
+type SetChatPhoto struct {
 	ChatID int64 `json:"chat_id"`
 }
 
@@ -440,7 +440,7 @@ type SetChatPhotoP struct {
 // photo is the file to upload as the new photo.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatphoto
-func (api *API) SetChatPhoto(params SetChatPhotoP, photo UploaderFile) (bool, error) {
+func (api *API) SetChatPhoto(params SetChatPhoto, photo UploaderFile) (bool, error) {
 	uploader := NewUploader(api)
 	defer func() {
 		_ = uploader.Close()
@@ -449,16 +449,16 @@ func (api *API) SetChatPhoto(params SetChatPhotoP, photo UploaderFile) (bool, er
 	return req.Do(uploader)
 }
 
-// DeleteChatPhotoP holds parameters for the deleteChatPhoto method.
+// DeleteChatPhoto holds parameters for the deleteChatPhoto method.
 // See https://core.telegram.org/bots/api#deletechatphoto
-type DeleteChatPhotoP struct {
+type DeleteChatPhoto struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // DeleteChatPhoto deletes a chat photo.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletechatphoto
-func (api *API) DeleteChatPhoto(params DeleteChatPhotoP) (bool, error) {
+func (api *API) DeleteChatPhoto(params DeleteChatPhoto) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteChatPhoto", params, params.ChatID)
 	return req.Do(api)
 }
@@ -466,14 +466,14 @@ func (api *API) DeleteChatPhoto(params DeleteChatPhotoP) (bool, error) {
 // DeleteChatPhotoWithContext is the context-aware variant of DeleteChatPhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletechatphoto
-func (api *API) DeleteChatPhotoWithContext(ctx context.Context, params DeleteChatPhotoP) (bool, error) {
+func (api *API) DeleteChatPhotoWithContext(ctx context.Context, params DeleteChatPhoto) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteChatPhoto", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatTitleP holds parameters for the setChatTitle method.
+// SetChatTitle holds parameters for the setChatTitle method.
 // See https://core.telegram.org/bots/api#setchattitle
-type SetChatTitleP struct {
+type SetChatTitle struct {
 	ChatID int64  `json:"chat_id"`
 	Title  string `json:"title"`
 }
@@ -481,7 +481,7 @@ type SetChatTitleP struct {
 // SetChatTitle changes the chat title.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchattitle
-func (api *API) SetChatTitle(params SetChatTitleP) (bool, error) {
+func (api *API) SetChatTitle(params SetChatTitle) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatTitle", params, params.ChatID)
 	return req.Do(api)
 }
@@ -489,14 +489,14 @@ func (api *API) SetChatTitle(params SetChatTitleP) (bool, error) {
 // SetChatTitleWithContext is the context-aware variant of SetChatTitle.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchattitle
-func (api *API) SetChatTitleWithContext(ctx context.Context, params SetChatTitleP) (bool, error) {
+func (api *API) SetChatTitleWithContext(ctx context.Context, params SetChatTitle) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatTitle", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatDescriptionP holds parameters for the setChatDescription method.
+// SetChatDescription holds parameters for the setChatDescription method.
 // See https://core.telegram.org/bots/api#setchatdescription
-type SetChatDescriptionP struct {
+type SetChatDescription struct {
 	ChatID      int64  `json:"chat_id"`
 	Description string `json:"description"`
 }
@@ -504,7 +504,7 @@ type SetChatDescriptionP struct {
 // SetChatDescription changes the chat description.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatdescription
-func (api *API) SetChatDescription(params SetChatDescriptionP) (bool, error) {
+func (api *API) SetChatDescription(params SetChatDescription) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatDescription", params, params.ChatID)
 	return req.Do(api)
 }
@@ -512,14 +512,14 @@ func (api *API) SetChatDescription(params SetChatDescriptionP) (bool, error) {
 // SetChatDescriptionWithContext is the context-aware variant of SetChatDescription.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatdescription
-func (api *API) SetChatDescriptionWithContext(ctx context.Context, params SetChatDescriptionP) (bool, error) {
+func (api *API) SetChatDescriptionWithContext(ctx context.Context, params SetChatDescription) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatDescription", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// PinChatMessageP holds parameters for the pinChatMessage method.
+// PinChatMessage holds parameters for the pinChatMessage method.
 // See https://core.telegram.org/bots/api#pinchatmessage
-type PinChatMessageP struct {
+type PinChatMessage struct {
 	BusinessConnectionID *string `json:"business_connection_id,omitempty"`
 	ChatID               int64   `json:"chat_id"`
 	MessageID            int     `json:"message_id"`
@@ -529,7 +529,7 @@ type PinChatMessageP struct {
 // PinChatMessage pins a message in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#pinchatmessage
-func (api *API) PinChatMessage(params PinChatMessageP) (bool, error) {
+func (api *API) PinChatMessage(params PinChatMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("pinChatMessage", params, params.ChatID)
 	return req.Do(api)
 }
@@ -537,14 +537,14 @@ func (api *API) PinChatMessage(params PinChatMessageP) (bool, error) {
 // PinChatMessageWithContext is the context-aware variant of PinChatMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#pinchatmessage
-func (api *API) PinChatMessageWithContext(ctx context.Context, params PinChatMessageP) (bool, error) {
+func (api *API) PinChatMessageWithContext(ctx context.Context, params PinChatMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("pinChatMessage", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// UnpinChatMessageP holds parameters for the unpinChatMessage method.
+// UnpinChatMessage holds parameters for the unpinChatMessage method.
 // See https://core.telegram.org/bots/api#unpinchatmessage
-type UnpinChatMessageP struct {
+type UnpinChatMessage struct {
 	BusinessConnectionID *string `json:"business_connection_id,omitempty"`
 	ChatID               int64   `json:"chat_id"`
 	MessageID            int     `json:"message_id"`
@@ -553,7 +553,7 @@ type UnpinChatMessageP struct {
 // UnpinChatMessage unpins a message in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unpinchatmessage
-func (api *API) UnpinChatMessage(params UnpinChatMessageP) (bool, error) {
+func (api *API) UnpinChatMessage(params UnpinChatMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinChatMessage", params, params.ChatID)
 	return req.Do(api)
 }
@@ -561,21 +561,21 @@ func (api *API) UnpinChatMessage(params UnpinChatMessageP) (bool, error) {
 // UnpinChatMessageWithContext is the context-aware variant of UnpinChatMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unpinchatmessage
-func (api *API) UnpinChatMessageWithContext(ctx context.Context, params UnpinChatMessageP) (bool, error) {
+func (api *API) UnpinChatMessageWithContext(ctx context.Context, params UnpinChatMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinChatMessage", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// UnpinAllChatMessagesP holds parameters for the unpinAllChatMessages method.
+// UnpinAllChatMessages holds parameters for the unpinAllChatMessages method.
 // See https://core.telegram.org/bots/api#unpinallchatmessages
-type UnpinAllChatMessagesP struct {
+type UnpinAllChatMessages struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // UnpinAllChatMessages unpins all pinned messages in a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unpinallchatmessages
-func (api *API) UnpinAllChatMessages(params UnpinAllChatMessagesP) (bool, error) {
+func (api *API) UnpinAllChatMessages(params UnpinAllChatMessages) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllChatMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -583,21 +583,21 @@ func (api *API) UnpinAllChatMessages(params UnpinAllChatMessagesP) (bool, error)
 // UnpinAllChatMessagesWithContext is the context-aware variant of UnpinAllChatMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unpinallchatmessages
-func (api *API) UnpinAllChatMessagesWithContext(ctx context.Context, params UnpinAllChatMessagesP) (bool, error) {
+func (api *API) UnpinAllChatMessagesWithContext(ctx context.Context, params UnpinAllChatMessages) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllChatMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// LeaveChatP holds parameters for the leaveChat method.
+// LeaveChat holds parameters for the leaveChat method.
 // See https://core.telegram.org/bots/api#leavechat
-type LeaveChatP struct {
+type LeaveChat struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // LeaveChat makes the bot leave a chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#leavechat
-func (api *API) LeaveChat(params LeaveChatP) (bool, error) {
+func (api *API) LeaveChat(params LeaveChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("leaveChat", params, params.ChatID) // fixed method name
 	return req.Do(api)
 }
@@ -605,20 +605,20 @@ func (api *API) LeaveChat(params LeaveChatP) (bool, error) {
 // LeaveChatWithContext is the context-aware variant of LeaveChat.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#leavechat
-func (api *API) LeaveChatWithContext(ctx context.Context, params LeaveChatP) (bool, error) {
+func (api *API) LeaveChatWithContext(ctx context.Context, params LeaveChat) (bool, error) {
 	req := NewRequestWithChatID[bool]("leaveChat", params, params.ChatID) // fixed method name
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatP holds parameters for the getChat method.
+// GetChat holds parameters for the getChat method.
 // See https://core.telegram.org/bots/api#getchat
-type GetChatP struct {
+type GetChat struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // GetChat gets up‑to‑date information about a chat.
 // See https://core.telegram.org/bots/api#getchat
-func (api *API) GetChat(params GetChatP) (ChatFullInfo, error) {
+func (api *API) GetChat(params GetChat) (ChatFullInfo, error) {
 	req := NewRequestWithChatID[ChatFullInfo]("getChat", params, params.ChatID) // fixed method name
 	return req.Do(api)
 }
@@ -626,20 +626,20 @@ func (api *API) GetChat(params GetChatP) (ChatFullInfo, error) {
 // GetChatWithContext is the context-aware variant of GetChat.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchat
-func (api *API) GetChatWithContext(ctx context.Context, params GetChatP) (ChatFullInfo, error) {
+func (api *API) GetChatWithContext(ctx context.Context, params GetChat) (ChatFullInfo, error) {
 	req := NewRequestWithChatID[ChatFullInfo]("getChat", params, params.ChatID) // fixed method name
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatAdministratorsP holds parameters for the getChatAdministrators method.
+// GetChatAdministrators holds parameters for the getChatAdministrators method.
 // See https://core.telegram.org/bots/api#getchatadministrators
-type GetChatAdministratorsP struct {
+type GetChatAdministrators struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // GetChatAdministrators returns a list of administrators in a chat.
 // See https://core.telegram.org/bots/api#getchatadministrators
-func (api *API) GetChatAdministrators(params GetChatAdministratorsP) ([]ChatMember, error) {
+func (api *API) GetChatAdministrators(params GetChatAdministrators) ([]ChatMember, error) {
 	req := NewRequestWithChatID[[]ChatMember]("getChatAdministrators", params, params.ChatID)
 	return req.Do(api)
 }
@@ -647,20 +647,20 @@ func (api *API) GetChatAdministrators(params GetChatAdministratorsP) ([]ChatMemb
 // GetChatAdministratorsWithContext is the context-aware variant of GetChatAdministrators.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchatadministrators
-func (api *API) GetChatAdministratorsWithContext(ctx context.Context, params GetChatAdministratorsP) ([]ChatMember, error) {
+func (api *API) GetChatAdministratorsWithContext(ctx context.Context, params GetChatAdministrators) ([]ChatMember, error) {
 	req := NewRequestWithChatID[[]ChatMember]("getChatAdministrators", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatMembersCountP holds parameters for the getChatMemberCount method.
+// GetChatMembersCount holds parameters for the getChatMemberCount method.
 // See https://core.telegram.org/bots/api#getchatmembercount
-type GetChatMembersCountP struct {
+type GetChatMembersCount struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // GetChatMemberCount returns the number of members in a chat.
 // See https://core.telegram.org/bots/api#getchatmembercount
-func (api *API) GetChatMemberCount(params GetChatMembersCountP) (int, error) {
+func (api *API) GetChatMemberCount(params GetChatMembersCount) (int, error) {
 	req := NewRequestWithChatID[int]("getChatMemberCount", params, params.ChatID)
 	return req.Do(api)
 }
@@ -668,21 +668,21 @@ func (api *API) GetChatMemberCount(params GetChatMembersCountP) (int, error) {
 // GetChatMemberCountWithContext is the context-aware variant of GetChatMemberCount.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchatmembercount
-func (api *API) GetChatMemberCountWithContext(ctx context.Context, params GetChatMembersCountP) (int, error) {
+func (api *API) GetChatMemberCountWithContext(ctx context.Context, params GetChatMembersCount) (int, error) {
 	req := NewRequestWithChatID[int]("getChatMemberCount", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatMemberP holds parameters for the getChatMember method.
+// GetChatMember holds parameters for the getChatMember method.
 // See https://core.telegram.org/bots/api#getchatmember
-type GetChatMemberP struct {
+type GetChatMember struct {
 	ChatID int64 `json:"chat_id"`
 	UserID int64 `json:"user_id"`
 }
 
 // GetChatMember returns information about a member of a chat.
 // See https://core.telegram.org/bots/api#getchatmember
-func (api *API) GetChatMember(params GetChatMemberP) (ChatMember, error) {
+func (api *API) GetChatMember(params GetChatMember) (ChatMember, error) {
 	req := NewRequestWithChatID[ChatMember]("getChatMember", params, params.ChatID)
 	return req.Do(api)
 }
@@ -690,14 +690,14 @@ func (api *API) GetChatMember(params GetChatMemberP) (ChatMember, error) {
 // GetChatMemberWithContext is the context-aware variant of GetChatMember.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchatmember
-func (api *API) GetChatMemberWithContext(ctx context.Context, params GetChatMemberP) (ChatMember, error) {
+func (api *API) GetChatMemberWithContext(ctx context.Context, params GetChatMember) (ChatMember, error) {
 	req := NewRequestWithChatID[ChatMember]("getChatMember", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetChatStickerSetP holds parameters for the setChatStickerSet method.
+// SetChatStickerSet holds parameters for the setChatStickerSet method.
 // See https://core.telegram.org/bots/api#setchatstickerset
-type SetChatStickerSetP struct {
+type SetChatStickerSet struct {
 	ChatID         int64  `json:"chat_id"`
 	StickerSetName string `json:"sticker_set_name"`
 }
@@ -705,7 +705,7 @@ type SetChatStickerSetP struct {
 // SetChatStickerSet associates a sticker set with a supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setchatstickerset
-func (api *API) SetChatStickerSet(params SetChatStickerSetP) (bool, error) {
+func (api *API) SetChatStickerSet(params SetChatStickerSet) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatStickerSet", params, params.ChatID)
 	return req.Do(api)
 }
@@ -713,21 +713,21 @@ func (api *API) SetChatStickerSet(params SetChatStickerSetP) (bool, error) {
 // SetChatStickerSetWithContext is the context-aware variant of SetChatStickerSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatstickerset
-func (api *API) SetChatStickerSetWithContext(ctx context.Context, params SetChatStickerSetP) (bool, error) {
+func (api *API) SetChatStickerSetWithContext(ctx context.Context, params SetChatStickerSet) (bool, error) {
 	req := NewRequestWithChatID[bool]("setChatStickerSet", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteChatStickerSetP holds parameters for the deleteChatStickerSet method.
+// DeleteChatStickerSet holds parameters for the deleteChatStickerSet method.
 // See https://core.telegram.org/bots/api#deletechatstickerset
-type DeleteChatStickerSetP struct {
+type DeleteChatStickerSet struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // DeleteChatStickerSet deletes a sticker set from a supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletechatstickerset
-func (api *API) DeleteChatStickerSet(params DeleteChatStickerSetP) (bool, error) {
+func (api *API) DeleteChatStickerSet(params DeleteChatStickerSet) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteChatStickerSet", params, params.ChatID)
 	return req.Do(api)
 }
@@ -735,21 +735,21 @@ func (api *API) DeleteChatStickerSet(params DeleteChatStickerSetP) (bool, error)
 // DeleteChatStickerSetWithContext is the context-aware variant of DeleteChatStickerSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletechatstickerset
-func (api *API) DeleteChatStickerSetWithContext(ctx context.Context, params DeleteChatStickerSetP) (bool, error) {
+func (api *API) DeleteChatStickerSetWithContext(ctx context.Context, params DeleteChatStickerSet) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteChatStickerSet", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetUserChatBoostsP holds parameters for the getUserChatBoosts method.
+// GetUserChatBoosts holds parameters for the getUserChatBoosts method.
 // See https://core.telegram.org/bots/api#getuserchatboosts
-type GetUserChatBoostsP struct {
+type GetUserChatBoosts struct {
 	ChatID int64 `json:"chat_id"`
 	UserID int64 `json:"user_id"`
 }
 
 // GetUserChatBoosts returns the list of boosts a user has given to a chat.
 // See https://core.telegram.org/bots/api#getuserchatboosts
-func (api *API) GetUserChatBoosts(params GetUserChatBoostsP) (UserChatBoosts, error) {
+func (api *API) GetUserChatBoosts(params GetUserChatBoosts) (UserChatBoosts, error) {
 	req := NewRequestWithChatID[UserChatBoosts]("getUserChatBoosts", params, params.ChatID)
 	return req.Do(api)
 }
@@ -757,14 +757,14 @@ func (api *API) GetUserChatBoosts(params GetUserChatBoostsP) (UserChatBoosts, er
 // GetUserChatBoostsWithContext is the context-aware variant of GetUserChatBoosts.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getuserchatboosts
-func (api *API) GetUserChatBoostsWithContext(ctx context.Context, params GetUserChatBoostsP) (UserChatBoosts, error) {
+func (api *API) GetUserChatBoostsWithContext(ctx context.Context, params GetUserChatBoosts) (UserChatBoosts, error) {
 	req := NewRequestWithChatID[UserChatBoosts]("getUserChatBoosts", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetChatGiftsP holds parameters for the getChatGifts method.
+// GetChatGifts holds parameters for the getChatGifts method.
 // See https://core.telegram.org/bots/api#getchatgifts
-type GetChatGiftsP struct {
+type GetChatGifts struct {
 	ChatID                      int64  `json:"chat_id"`
 	ExcludeUnsaved              bool   `json:"exclude_unsaved,omitempty"`
 	ExcludeSaved                bool   `json:"exclude_saved,omitempty"`
@@ -780,7 +780,7 @@ type GetChatGiftsP struct {
 
 // GetChatGifts returns gifts owned by a chat.
 // See https://core.telegram.org/bots/api#getchatgifts
-func (api *API) GetChatGifts(params GetChatGiftsP) (OwnedGifts, error) {
+func (api *API) GetChatGifts(params GetChatGifts) (OwnedGifts, error) {
 	req := NewRequestWithChatID[OwnedGifts]("getChatGifts", params, params.ChatID)
 	return req.Do(api)
 }
@@ -788,7 +788,7 @@ func (api *API) GetChatGifts(params GetChatGiftsP) (OwnedGifts, error) {
 // GetChatGiftsWithContext is the context-aware variant of GetChatGifts.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getchatgifts
-func (api *API) GetChatGiftsWithContext(ctx context.Context, params GetChatGiftsP) (OwnedGifts, error) {
+func (api *API) GetChatGiftsWithContext(ctx context.Context, params GetChatGifts) (OwnedGifts, error) {
 	req := NewRequestWithChatID[OwnedGifts]("getChatGifts", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }

tgapi/chat_types.go

@@ -3,24 +3,28 @@ package tgapi
 // Chat represents a chat (private, group, supergroup, channel).
 // See https://core.telegram.org/bots/api#chat
 type Chat struct {
-	ID               int64   `json:"id"`
-	Type             string  `json:"type"`
-	Title            *string `json:"title,omitempty"`
-	Username         *string `json:"username,omitempty"`
-	FirstName        *string `json:"first_name,omitempty"`
-	LastName         *string `json:"last_name,omitempty"`
-	IsForum          *bool   `json:"is_forum,omitempty"`
-	IsDirectMessages *bool   `json:"is_direct_messages,omitempty"`
+	ID               int64    `json:"id"`
+	Type             ChatType `json:"type"`
+	Title            *string  `json:"title,omitempty"`
+	Username         *string  `json:"username,omitempty"`
+	FirstName        *string  `json:"first_name,omitempty"`
+	LastName         *string  `json:"last_name,omitempty"`
+	IsForum          *bool    `json:"is_forum,omitempty"`
+	IsDirectMessages *bool    `json:"is_direct_messages,omitempty"`
 }
 
 // ChatType represents the type of a chat.
 type ChatType string
 
 const (
-	ChatTypePrivate    ChatType = "private"
-	ChatTypeGroup      ChatType = "group"
+	// ChatTypePrivate identifies a private chat.
+	ChatTypePrivate ChatType = "private"
+	// ChatTypeGroup identifies a basic group chat.
+	ChatTypeGroup ChatType = "group"
+	// ChatTypeSupergroup identifies a supergroup chat.
 	ChatTypeSupergroup ChatType = "supergroup"
-	ChatTypeChannel    ChatType = "channel"
+	// ChatTypeChannel identifies a channel chat.
+	ChatTypeChannel ChatType = "channel"
 )
 
 // ChatFullInfo contains full information about a chat.
@@ -103,11 +107,12 @@ type ChatPermissions struct {
 	CanSendAudios        bool `json:"can_send_audios"`
 	CanSendDocuments     bool `json:"can_send_documents"`
 	CanSendPhotos        bool `json:"can_send_photos"`
+	CanSendVideos        bool `json:"can_send_videos"`
 	CanSendVideoNotes    bool `json:"can_send_video_notes"`
 	CanSendVoiceNotes    bool `json:"can_send_voice_notes"`
 	CanSendPolls         bool `json:"can_send_polls"`
 	CanSendOtherMessages bool `json:"can_send_other_messages"`
-	CanAddWebPagePreview bool `json:"can_add_web_page_preview"`
+	CanAddWebPagePreview bool `json:"can_add_web_page_previews"`
 	CanEditTag           bool `json:"can_edit_tag"`
 	CanChangeInfo        bool `json:"can_change_info"`
 	CanInviteUsers       bool `json:"can_invite_users"`
@@ -143,12 +148,18 @@ type ChatInviteLink struct {
 type ChatMemberStatusType string
 
 const (
-	ChatMemberStatusOwner         ChatMemberStatusType = "owner"
+	// ChatMemberStatusOwner identifies a chat owner.
+	ChatMemberStatusOwner ChatMemberStatusType = "owner"
+	// ChatMemberStatusAdministrator identifies a chat administrator.
 	ChatMemberStatusAdministrator ChatMemberStatusType = "administrator"
-	ChatMemberStatusMember        ChatMemberStatusType = "member"
-	ChatMemberStatusRestricted    ChatMemberStatusType = "restricted"
-	ChatMemberStatusLeft          ChatMemberStatusType = "left"
-	ChatMemberStatusBanned        ChatMemberStatusType = "kicked"
+	// ChatMemberStatusMember identifies a regular member.
+	ChatMemberStatusMember ChatMemberStatusType = "member"
+	// ChatMemberStatusRestricted identifies a restricted member.
+	ChatMemberStatusRestricted ChatMemberStatusType = "restricted"
+	// ChatMemberStatusLeft identifies a user who left the chat.
+	ChatMemberStatusLeft ChatMemberStatusType = "left"
+	// ChatMemberStatusBanned identifies a banned user.
+	ChatMemberStatusBanned ChatMemberStatusType = "kicked"
 )
 
 // ChatMember contains information about one member of a chat.
@@ -190,12 +201,13 @@ type ChatMember struct {
 	CanSendMessages      *bool `json:"can_send_messages,omitempty"`
 	CanSendAudios        *bool `json:"can_send_audios,omitempty"`
 	CanSendDocuments     *bool `json:"can_send_documents,omitempty"`
+	CanSendPhotos        *bool `json:"can_send_photos,omitempty"`
 	CanSendVideos        *bool `json:"can_send_videos,omitempty"`
 	CanSendVideoNotes    *bool `json:"can_send_video_notes,omitempty"`
 	CanSendVoiceNotes    *bool `json:"can_send_voice_notes,omitempty"`
 	CanSendPolls         *bool `json:"can_send_polls,omitempty"`
 	CanSendOtherMessages *bool `json:"can_send_other_messages,omitempty"`
-	CanAddWebPagePreview *bool `json:"can_add_web_page_preview,omitempty"`
+	CanAddWebPagePreview *bool `json:"can_add_web_page_previews,omitempty"`
 	CanEditTag           *bool `json:"can_edit_tag,omitempty"`
 }
 
@@ -214,7 +226,7 @@ type ChatBoostSource struct {
 // ChatBoost represents a boost added to a chat.
 // See https://core.telegram.org/bots/api#chatboost
 type ChatBoost struct {
-	BoostID        int             `json:"boost_id"`
+	BoostID        string          `json:"boost_id"`
 	AddDate        int             `json:"add_date"`
 	ExpirationDate int             `json:"expiration_date"`
 	Source         ChatBoostSource `json:"source"`
@@ -225,6 +237,25 @@ type ChatBoost struct {
 type UserChatBoosts struct {
 	Boosts []ChatBoost `json:"boosts"`
 }
+type ChatBoostAdded struct {
+	BoostCount int `json:"boost_count"`
+}
+
+type ChatBackground struct {
+	Type BackgroundType `json:"type"`
+}
+
+// ChatOwnerLeft describes a service message about a chat owner leaving.
+// See https://core.telegram.org/bots/api#chatownerleft
+type ChatOwnerLeft struct {
+	NewOwner *User `json:"new_owner,omitempty"`
+}
+
+// ChatOwnerChanged describes a service message about a chat owner change.
+// See https://core.telegram.org/bots/api#chatownerchanged
+type ChatOwnerChanged struct {
+	NewOwner User `json:"new_owner"`
+}
 
 // ChatAdministratorRights represents the rights of an administrator in a chat.
 // See https://core.telegram.org/bots/api#chatadministratorrights

tgapi/errors.go

@@ -2,7 +2,14 @@ package tgapi
 
 import "errors"
 
+// ErrRateLimit reports that a request exceeded the configured rate limiter.
 var ErrRateLimit = errors.New("rate limit exceeded")
+
+// ErrPoolUnexpected reports an unexpected result type returned from the worker pool.
 var ErrPoolUnexpected = errors.New("unexpected response from pool")
+
+// ErrPoolQueueFull reports that the internal request queue is full.
 var ErrPoolQueueFull = errors.New("worker pool queue full")
+
+// ErrPoolStopped reports that a request was submitted after the worker pool stopped.
 var ErrPoolStopped = errors.New("worker pool stopped")

tgapi/forum_methods.go

@@ -2,8 +2,8 @@ package tgapi
 
 import "context"
 
-// BaseForumTopicP contains common fields for forum topic operations that require a chat ID and a message thread ID.
-type BaseForumTopicP struct {
+// BaseForumTopic contains common fields for forum topic operations that require a chat ID and a message thread ID.
+type BaseForumTopic struct {
 	ChatID          int64 `json:"chat_id"`
 	MessageThreadID int   `json:"message_thread_id"`
 }
@@ -23,9 +23,9 @@ func (api *API) GetForumTopicIconStickersWithContext(ctx context.Context) ([]Sti
 	return req.DoWithContext(ctx, api)
 }
 
-// CreateForumTopicP holds parameters for the createForumTopic method.
+// CreateForumTopic holds parameters for the createForumTopic method.
 // See https://core.telegram.org/bots/api#createforumtopic
-type CreateForumTopicP struct {
+type CreateForumTopic struct {
 	ChatID            int64               `json:"chat_id"`
 	Name              string              `json:"name"`
 	IconColor         ForumTopicIconColor `json:"icon_color"`
@@ -35,7 +35,7 @@ type CreateForumTopicP struct {
 // CreateForumTopic creates a topic in a forum supergroup.
 // Returns the created ForumTopic on success.
 // See https://core.telegram.org/bots/api#createforumtopic
-func (api *API) CreateForumTopic(params CreateForumTopicP) (ForumTopic, error) {
+func (api *API) CreateForumTopic(params CreateForumTopic) (ForumTopic, error) {
 	req := NewRequestWithChatID[ForumTopic]("createForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -43,15 +43,15 @@ func (api *API) CreateForumTopic(params CreateForumTopicP) (ForumTopic, error) {
 // CreateForumTopicWithContext is the context-aware variant of CreateForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#createforumtopic
-func (api *API) CreateForumTopicWithContext(ctx context.Context, params CreateForumTopicP) (ForumTopic, error) {
+func (api *API) CreateForumTopicWithContext(ctx context.Context, params CreateForumTopic) (ForumTopic, error) {
 	req := NewRequestWithChatID[ForumTopic]("createForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditForumTopicP holds parameters for the editForumTopic method.
+// EditForumTopic holds parameters for the editForumTopic method.
 // See https://core.telegram.org/bots/api#editforumtopic
-type EditForumTopicP struct {
-	BaseForumTopicP
+type EditForumTopic struct {
+	BaseForumTopic
 	Name              string `json:"name"`
 	IconCustomEmojiID string `json:"icon_custom_emoji_id"`
 }
@@ -59,7 +59,7 @@ type EditForumTopicP struct {
 // EditForumTopic edits name and icon of a forum topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#editforumtopic
-func (api *API) EditForumTopic(params EditForumTopicP) (bool, error) {
+func (api *API) EditForumTopic(params EditForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("editForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -67,7 +67,7 @@ func (api *API) EditForumTopic(params EditForumTopicP) (bool, error) {
 // EditForumTopicWithContext is the context-aware variant of EditForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editforumtopic
-func (api *API) EditForumTopicWithContext(ctx context.Context, params EditForumTopicP) (bool, error) {
+func (api *API) EditForumTopicWithContext(ctx context.Context, params EditForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("editForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -75,7 +75,7 @@ func (api *API) EditForumTopicWithContext(ctx context.Context, params EditForumT
 // CloseForumTopic closes an open forum topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#closeforumtopic
-func (api *API) CloseForumTopic(params BaseForumTopicP) (bool, error) {
+func (api *API) CloseForumTopic(params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("closeForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -83,7 +83,7 @@ func (api *API) CloseForumTopic(params BaseForumTopicP) (bool, error) {
 // CloseForumTopicWithContext is the context-aware variant of CloseForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#closeforumtopic
-func (api *API) CloseForumTopicWithContext(ctx context.Context, params BaseForumTopicP) (bool, error) {
+func (api *API) CloseForumTopicWithContext(ctx context.Context, params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("closeForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -91,7 +91,7 @@ func (api *API) CloseForumTopicWithContext(ctx context.Context, params BaseForum
 // ReopenForumTopic reopens a closed forum topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#reopenforumtopic
-func (api *API) ReopenForumTopic(params BaseForumTopicP) (bool, error) {
+func (api *API) ReopenForumTopic(params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("reopenForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -99,7 +99,7 @@ func (api *API) ReopenForumTopic(params BaseForumTopicP) (bool, error) {
 // ReopenForumTopicWithContext is the context-aware variant of ReopenForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#reopenforumtopic
-func (api *API) ReopenForumTopicWithContext(ctx context.Context, params BaseForumTopicP) (bool, error) {
+func (api *API) ReopenForumTopicWithContext(ctx context.Context, params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("reopenForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -107,7 +107,7 @@ func (api *API) ReopenForumTopicWithContext(ctx context.Context, params BaseForu
 // DeleteForumTopic deletes a forum topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deleteforumtopic
-func (api *API) DeleteForumTopic(params BaseForumTopicP) (bool, error) {
+func (api *API) DeleteForumTopic(params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -115,7 +115,7 @@ func (api *API) DeleteForumTopic(params BaseForumTopicP) (bool, error) {
 // DeleteForumTopicWithContext is the context-aware variant of DeleteForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deleteforumtopic
-func (api *API) DeleteForumTopicWithContext(ctx context.Context, params BaseForumTopicP) (bool, error) {
+func (api *API) DeleteForumTopicWithContext(ctx context.Context, params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -123,7 +123,7 @@ func (api *API) DeleteForumTopicWithContext(ctx context.Context, params BaseForu
 // UnpinAllForumTopicMessages clears the list of pinned messages in a forum topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unpinallforumtopicmessages
-func (api *API) UnpinAllForumTopicMessages(params BaseForumTopicP) (bool, error) {
+func (api *API) UnpinAllForumTopicMessages(params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllForumTopicMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -131,19 +131,19 @@ func (api *API) UnpinAllForumTopicMessages(params BaseForumTopicP) (bool, error)
 // UnpinAllForumTopicMessagesWithContext is the context-aware variant of UnpinAllForumTopicMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unpinallforumtopicmessages
-func (api *API) UnpinAllForumTopicMessagesWithContext(ctx context.Context, params BaseForumTopicP) (bool, error) {
+func (api *API) UnpinAllForumTopicMessagesWithContext(ctx context.Context, params BaseForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllForumTopicMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// BaseGeneralForumTopicP contains common fields for general forum topic operations that require a chat ID.
-type BaseGeneralForumTopicP struct {
+// BaseGeneralForumTopic contains common fields for general forum topic operations that require a chat ID.
+type BaseGeneralForumTopic struct {
 	ChatID int64 `json:"chat_id"`
 }
 
-// EditGeneralForumTopicP holds parameters for the editGeneralForumTopic method.
+// EditGeneralForumTopic holds parameters for the editGeneralForumTopic method.
 // See https://core.telegram.org/bots/api#editgeneralforumtopic
-type EditGeneralForumTopicP struct {
+type EditGeneralForumTopic struct {
 	ChatID int64  `json:"chat_id"`
 	Name   string `json:"name"`
 }
@@ -151,7 +151,7 @@ type EditGeneralForumTopicP struct {
 // EditGeneralForumTopic edits the name of the 'General' topic in a forum supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#editgeneralforumtopic
-func (api *API) EditGeneralForumTopic(params EditGeneralForumTopicP) (bool, error) {
+func (api *API) EditGeneralForumTopic(params EditGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("editGeneralForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -159,7 +159,7 @@ func (api *API) EditGeneralForumTopic(params EditGeneralForumTopicP) (bool, erro
 // EditGeneralForumTopicWithContext is the context-aware variant of EditGeneralForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editgeneralforumtopic
-func (api *API) EditGeneralForumTopicWithContext(ctx context.Context, params EditGeneralForumTopicP) (bool, error) {
+func (api *API) EditGeneralForumTopicWithContext(ctx context.Context, params EditGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("editGeneralForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -167,7 +167,7 @@ func (api *API) EditGeneralForumTopicWithContext(ctx context.Context, params Edi
 // CloseGeneralForumTopic closes the 'General' topic in a forum supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#closegeneralforumtopic
-func (api *API) CloseGeneralForumTopic(params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) CloseGeneralForumTopic(params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("closeGeneralForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -175,7 +175,7 @@ func (api *API) CloseGeneralForumTopic(params BaseGeneralForumTopicP) (bool, err
 // CloseGeneralForumTopicWithContext is the context-aware variant of CloseGeneralForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#closegeneralforumtopic
-func (api *API) CloseGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) CloseGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("closeGeneralForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -183,7 +183,7 @@ func (api *API) CloseGeneralForumTopicWithContext(ctx context.Context, params Ba
 // ReopenGeneralForumTopic reopens the 'General' topic in a forum supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#reopengeneralforumtopic
-func (api *API) ReopenGeneralForumTopic(params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) ReopenGeneralForumTopic(params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("reopenGeneralForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -191,7 +191,7 @@ func (api *API) ReopenGeneralForumTopic(params BaseGeneralForumTopicP) (bool, er
 // ReopenGeneralForumTopicWithContext is the context-aware variant of ReopenGeneralForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#reopengeneralforumtopic
-func (api *API) ReopenGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) ReopenGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("reopenGeneralForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -199,7 +199,7 @@ func (api *API) ReopenGeneralForumTopicWithContext(ctx context.Context, params B
 // HideGeneralForumTopic hides the 'General' topic in a forum supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#hidegeneralforumtopic
-func (api *API) HideGeneralForumTopic(params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) HideGeneralForumTopic(params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("hideGeneralForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -207,7 +207,7 @@ func (api *API) HideGeneralForumTopic(params BaseGeneralForumTopicP) (bool, erro
 // HideGeneralForumTopicWithContext is the context-aware variant of HideGeneralForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#hidegeneralforumtopic
-func (api *API) HideGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) HideGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("hideGeneralForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -215,7 +215,7 @@ func (api *API) HideGeneralForumTopicWithContext(ctx context.Context, params Bas
 // UnhideGeneralForumTopic unhides the 'General' topic in a forum supergroup.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unhidegeneralforumtopic
-func (api *API) UnhideGeneralForumTopic(params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) UnhideGeneralForumTopic(params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unhideGeneralForumTopic", params, params.ChatID)
 	return req.Do(api)
 }
@@ -223,7 +223,7 @@ func (api *API) UnhideGeneralForumTopic(params BaseGeneralForumTopicP) (bool, er
 // UnhideGeneralForumTopicWithContext is the context-aware variant of UnhideGeneralForumTopic.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unhidegeneralforumtopic
-func (api *API) UnhideGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) UnhideGeneralForumTopicWithContext(ctx context.Context, params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unhideGeneralForumTopic", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
@@ -231,7 +231,7 @@ func (api *API) UnhideGeneralForumTopicWithContext(ctx context.Context, params B
 // UnpinAllGeneralForumTopicMessages clears the list of pinned messages in the 'General' topic.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#unpinallgeneralforumtopicmessages
-func (api *API) UnpinAllGeneralForumTopicMessages(params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) UnpinAllGeneralForumTopicMessages(params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllGeneralForumTopicMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -239,7 +239,7 @@ func (api *API) UnpinAllGeneralForumTopicMessages(params BaseGeneralForumTopicP)
 // UnpinAllGeneralForumTopicMessagesWithContext is the context-aware variant of UnpinAllGeneralForumTopicMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#unpinallgeneralforumtopicmessages
-func (api *API) UnpinAllGeneralForumTopicMessagesWithContext(ctx context.Context, params BaseGeneralForumTopicP) (bool, error) {
+func (api *API) UnpinAllGeneralForumTopicMessagesWithContext(ctx context.Context, params BaseGeneralForumTopic) (bool, error) {
 	req := NewRequestWithChatID[bool]("unpinAllGeneralForumTopicMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }

tgapi/forum_types.go

@@ -19,3 +19,19 @@ const (
 	// ForumTopicIconColorBlue is the blue color for forum topic icons (value 7322096).
 	ForumTopicIconColorBlue ForumTopicIconColor = 7322096
 )
+
+type ForumTopicCreated struct {
+	Name              string `json:"name"`
+	IconColor         int    `json:"icon_color"`
+	IconCustomEmojiID string `json:"icon_custom_emoji_id,omitempty"`
+	IsNameImplicit    bool   `json:"is_name_implicit,omitempty"`
+}
+type ForumTopicEdited struct {
+	Name              string `json:"name,omitempty"`
+	IconCustomEmojiID string `json:"icon_custom_emoji_id,omitempty"`
+}
+type ForumTopicClosed struct{}
+type ForumTopicReopened struct{}
+type GeneralForumTopicHidden struct{}
+type GeneralForumTopicUnhidden struct {
+}

tgapi/games_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SendGameP holds parameters for the sendGame method.
+// SendGame holds parameters for the sendGame method.
 // See https://core.telegram.org/bots/api#sendgame
-type SendGameP struct {
+type SendGame struct {
 	BusinessConnectionID string `json:"business_connection_id,omitempty"`
 	ChatID               int64  `json:"chat_id"`
 	MessageThreadID      int    `json:"message_thread_id,omitempty"`
@@ -21,7 +21,7 @@ type SendGameP struct {
 
 // SendGame sends a game message.
 // See https://core.telegram.org/bots/api#sendgame
-func (api *API) SendGame(params SendGameP) (Message, error) {
+func (api *API) SendGame(params SendGame) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendGame", params, params.ChatID)
 	return req.Do(api)
 }
@@ -29,14 +29,14 @@ func (api *API) SendGame(params SendGameP) (Message, error) {
 // SendGameWithContext is the context-aware variant of SendGame.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendgame
-func (api *API) SendGameWithContext(ctx context.Context, params SendGameP) (Message, error) {
+func (api *API) SendGameWithContext(ctx context.Context, params SendGame) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendGame", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetGameScoreP holds parameters for the setGameScore method.
+// SetGameScore holds parameters for the setGameScore method.
 // See https://core.telegram.org/bots/api#setgamescore
-type SetGameScoreP struct {
+type SetGameScore struct {
 	UserID             int64  `json:"user_id"`
 	Score              int    `json:"score"`
 	Force              bool   `json:"force,omitempty"`
@@ -50,7 +50,7 @@ type SetGameScoreP struct {
 // If inline_message_id is provided, returns a boolean success flag.
 // Otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#setgamescore
-func (api *API) SetGameScore(params SetGameScoreP) (Message, bool, error) {
+func (api *API) SetGameScore(params SetGameScore) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("setGameScore", params, params.ChatID)
@@ -65,7 +65,7 @@ func (api *API) SetGameScore(params SetGameScoreP) (Message, bool, error) {
 // SetGameScoreWithContext is the context-aware variant of SetGameScore.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setgamescore
-func (api *API) SetGameScoreWithContext(ctx context.Context, params SetGameScoreP) (Message, bool, error) {
+func (api *API) SetGameScoreWithContext(ctx context.Context, params SetGameScore) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("setGameScore", params, params.ChatID)
@@ -77,9 +77,9 @@ func (api *API) SetGameScoreWithContext(ctx context.Context, params SetGameScore
 	return res, false, err
 }
 
-// GetGameHighScoresP holds parameters for the getGameHighScores method.
+// GetGameHighScores holds parameters for the getGameHighScores method.
 // See https://core.telegram.org/bots/api#getgamehighscores
-type GetGameHighScoresP struct {
+type GetGameHighScores struct {
 	UserID          int64  `json:"user_id"`
 	ChatID          int64  `json:"chat_id,omitempty"`
 	MessageID       int    `json:"message_id,omitempty"`
@@ -88,7 +88,7 @@ type GetGameHighScoresP struct {
 
 // GetGameHighScores returns game high score data for a user.
 // See https://core.telegram.org/bots/api#getgamehighscores
-func (api *API) GetGameHighScores(params GetGameHighScoresP) ([]GameHighScore, error) {
+func (api *API) GetGameHighScores(params GetGameHighScores) ([]GameHighScore, error) {
 	req := NewRequestWithChatID[[]GameHighScore]("getGameHighScores", params, params.ChatID)
 	return req.Do(api)
 }
@@ -96,7 +96,7 @@ func (api *API) GetGameHighScores(params GetGameHighScoresP) ([]GameHighScore, e
 // GetGameHighScoresWithContext is the context-aware variant of GetGameHighScores.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getgamehighscores
-func (api *API) GetGameHighScoresWithContext(ctx context.Context, params GetGameHighScoresP) ([]GameHighScore, error) {
+func (api *API) GetGameHighScoresWithContext(ctx context.Context, params GetGameHighScores) ([]GameHighScore, error) {
 	req := NewRequestWithChatID[[]GameHighScore]("getGameHighScores", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }

tgapi/games_types.go

@@ -1,5 +1,15 @@
 package tgapi
 
+type Game struct {
+	Title        string          `json:"title"`
+	Description  string          `json:"description"`
+	Photo        []PhotoSize     `json:"photo"`
+	Text         string          `json:"text,omitempty"`
+	TextEntities []MessageEntity `json:"text_entities,omitempty"`
+	Animation    *Animation      `json:"animation,omitempty"`
+}
+type CallbackGame struct{}
+
 // GameHighScore represents one row in a game high score table.
 // See https://core.telegram.org/bots/api#gamehighscore
 type GameHighScore struct {

tgapi/inline_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// AnswerInlineQueryP holds parameters for the answerInlineQuery method.
+// AnswerInlineQuery holds parameters for the answerInlineQuery method.
 // See https://core.telegram.org/bots/api#answerinlinequery
-type AnswerInlineQueryP struct {
+type AnswerInlineQuery struct {
 	InlineQueryID string                    `json:"inline_query_id"`
 	Results       []InlineQueryResult       `json:"results"`
 	CacheTime     int                       `json:"cache_time,omitempty"`
@@ -16,7 +16,7 @@ type AnswerInlineQueryP struct {
 // AnswerInlineQuery sends answers to an inline query.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#answerinlinequery
-func (api *API) AnswerInlineQuery(params AnswerInlineQueryP) (bool, error) {
+func (api *API) AnswerInlineQuery(params AnswerInlineQuery) (bool, error) {
 	req := NewRequest[bool]("answerInlineQuery", params)
 	return req.Do(api)
 }
@@ -24,21 +24,21 @@ func (api *API) AnswerInlineQuery(params AnswerInlineQueryP) (bool, error) {
 // AnswerInlineQueryWithContext is the context-aware variant of AnswerInlineQuery.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#answerinlinequery
-func (api *API) AnswerInlineQueryWithContext(ctx context.Context, params AnswerInlineQueryP) (bool, error) {
+func (api *API) AnswerInlineQueryWithContext(ctx context.Context, params AnswerInlineQuery) (bool, error) {
 	req := NewRequest[bool]("answerInlineQuery", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// AnswerWebAppQueryP holds parameters for the answerWebAppQuery method.
+// AnswerWebAppQuery holds parameters for the answerWebAppQuery method.
 // See https://core.telegram.org/bots/api#answerwebappquery
-type AnswerWebAppQueryP struct {
+type AnswerWebAppQuery struct {
 	WebAppQueryID string            `json:"web_app_query_id"`
 	Result        InlineQueryResult `json:"result"`
 }
 
 // AnswerWebAppQuery sets the result of a Web App interaction.
 // See https://core.telegram.org/bots/api#answerwebappquery
-func (api *API) AnswerWebAppQuery(params AnswerWebAppQueryP) (SentWebAppMessage, error) {
+func (api *API) AnswerWebAppQuery(params AnswerWebAppQuery) (SentWebAppMessage, error) {
 	req := NewRequest[SentWebAppMessage]("answerWebAppQuery", params)
 	return req.Do(api)
 }
@@ -46,14 +46,14 @@ func (api *API) AnswerWebAppQuery(params AnswerWebAppQueryP) (SentWebAppMessage,
 // AnswerWebAppQueryWithContext is the context-aware variant of AnswerWebAppQuery.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#answerwebappquery
-func (api *API) AnswerWebAppQueryWithContext(ctx context.Context, params AnswerWebAppQueryP) (SentWebAppMessage, error) {
+func (api *API) AnswerWebAppQueryWithContext(ctx context.Context, params AnswerWebAppQuery) (SentWebAppMessage, error) {
 	req := NewRequest[SentWebAppMessage]("answerWebAppQuery", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SavePreparedInlineMessageP holds parameters for the savePreparedInlineMessage method.
+// SavePreparedInlineMessage holds parameters for the savePreparedInlineMessage method.
 // See https://core.telegram.org/bots/api#savepreparedinlinemessage
-type SavePreparedInlineMessageP struct {
+type SavePreparedInlineMessage struct {
 	UserID            int64             `json:"user_id"`
 	Result            InlineQueryResult `json:"result"`
 	AllowUserChats    bool              `json:"allow_user_chats,omitempty"`
@@ -64,7 +64,7 @@ type SavePreparedInlineMessageP struct {
 
 // SavePreparedInlineMessage stores a prepared message for Mini App users.
 // See https://core.telegram.org/bots/api#savepreparedinlinemessage
-func (api *API) SavePreparedInlineMessage(params SavePreparedInlineMessageP) (PreparedInlineMessage, error) {
+func (api *API) SavePreparedInlineMessage(params SavePreparedInlineMessage) (PreparedInlineMessage, error) {
 	req := NewRequest[PreparedInlineMessage]("savePreparedInlineMessage", params)
 	return req.Do(api)
 }
@@ -72,7 +72,29 @@ func (api *API) SavePreparedInlineMessage(params SavePreparedInlineMessageP) (Pr
 // SavePreparedInlineMessageWithContext is the context-aware variant of SavePreparedInlineMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#savepreparedinlinemessage
-func (api *API) SavePreparedInlineMessageWithContext(ctx context.Context, params SavePreparedInlineMessageP) (PreparedInlineMessage, error) {
+func (api *API) SavePreparedInlineMessageWithContext(ctx context.Context, params SavePreparedInlineMessage) (PreparedInlineMessage, error) {
 	req := NewRequest[PreparedInlineMessage]("savePreparedInlineMessage", params)
 	return req.DoWithContext(ctx, api)
 }
+
+// SavePreparedKeyboardButton holds parameters for the savePreparedKeyboardButton method.
+// See https://core.telegram.org/bots/api#savepreparedkeyboardbutton
+type SavePreparedKeyboardButton struct {
+	UserID int64          `json:"user_id"`
+	Button KeyboardButton `json:"button"`
+}
+
+// SavePreparedKeyboardButton stores a prepared keyboard button for Mini App users.
+// See https://core.telegram.org/bots/api#savepreparedkeyboardbutton
+func (api *API) SavePreparedKeyboardButton(params SavePreparedKeyboardButton) (PreparedKeyboardButton, error) {
+	req := NewRequest[PreparedKeyboardButton]("savePreparedKeyboardButton", params)
+	return req.Do(api)
+}
+
+// SavePreparedKeyboardButtonWithContext is the context-aware variant of SavePreparedKeyboardButton.
+// It executes the same request but uses ctx for cancellation and deadlines.
+// See https://core.telegram.org/bots/api#savepreparedkeyboardbutton
+func (api *API) SavePreparedKeyboardButtonWithContext(ctx context.Context, params SavePreparedKeyboardButton) (PreparedKeyboardButton, error) {
+	req := NewRequest[PreparedKeyboardButton]("savePreparedKeyboardButton", params)
+	return req.DoWithContext(ctx, api)
+}

tgapi/inline_types.go

@@ -24,3 +24,9 @@ type PreparedInlineMessage struct {
 	ID             string `json:"id"`
 	ExpirationDate int    `json:"expiration_date"`
 }
+
+// PreparedKeyboardButton describes a prepared keyboard button.
+// See https://core.telegram.org/bots/api#preparedkeyboardbutton
+type PreparedKeyboardButton struct {
+	ID string `json:"id"`
+}

tgapi/messages_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SendMessageP holds parameters for the sendMessage method.
+// SendMessage holds parameters for the sendMessage method.
 // See https://core.telegram.org/bots/api#sendmessage
-type SendMessageP struct {
+type SendMessage struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -26,22 +26,22 @@ type SendMessageP struct {
 
 // SendMessage sends a text message.
 // See https://core.telegram.org/bots/api#sendmessage
-func (api *API) SendMessage(params SendMessageP) (Message, error) {
-	req := NewRequestWithChatID[Message, SendMessageP]("sendMessage", params, params.ChatID)
+func (api *API) SendMessage(params SendMessage) (Message, error) {
+	req := NewRequestWithChatID[Message, SendMessage]("sendMessage", params, params.ChatID)
 	return req.Do(api)
 }
 
 // SendMessageWithContext is the context-aware variant of SendMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendmessage
-func (api *API) SendMessageWithContext(ctx context.Context, params SendMessageP) (Message, error) {
-	req := NewRequestWithChatID[Message, SendMessageP]("sendMessage", params, params.ChatID)
+func (api *API) SendMessageWithContext(ctx context.Context, params SendMessage) (Message, error) {
+	req := NewRequestWithChatID[Message, SendMessage]("sendMessage", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// ForwardMessageP holds parameters for the forwardMessage method.
+// ForwardMessage holds parameters for the forwardMessage method.
 // See https://core.telegram.org/bots/api#forwardmessage
-type ForwardMessageP struct {
+type ForwardMessage struct {
 	ChatID                int64 `json:"chat_id"`
 	MessageThreadID       int   `json:"message_thread_id,omitempty"`
 	DirectMessagesTopicID int   `json:"direct_messages_topic_id,omitempty"`
@@ -58,7 +58,7 @@ type ForwardMessageP struct {
 
 // ForwardMessage forwards a message.
 // See https://core.telegram.org/bots/api#forwardmessage
-func (api *API) ForwardMessage(params ForwardMessageP) (Message, error) {
+func (api *API) ForwardMessage(params ForwardMessage) (Message, error) {
 	req := NewRequestWithChatID[Message]("forwardMessage", params, params.ChatID)
 	return req.Do(api)
 }
@@ -66,14 +66,14 @@ func (api *API) ForwardMessage(params ForwardMessageP) (Message, error) {
 // ForwardMessageWithContext is the context-aware variant of ForwardMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#forwardmessage
-func (api *API) ForwardMessageWithContext(ctx context.Context, params ForwardMessageP) (Message, error) {
+func (api *API) ForwardMessageWithContext(ctx context.Context, params ForwardMessage) (Message, error) {
 	req := NewRequestWithChatID[Message]("forwardMessage", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// ForwardMessagesP holds parameters for the forwardMessages method.
+// ForwardMessages holds parameters for the forwardMessages method.
 // See https://core.telegram.org/bots/api#forwardmessages
-type ForwardMessagesP struct {
+type ForwardMessages struct {
 	ChatID                int64 `json:"chat_id"`
 	MessageThreadID       int   `json:"message_thread_id,omitempty"`
 	DirectMessagesTopicID int   `json:"direct_messages_topic_id,omitempty"`
@@ -87,7 +87,7 @@ type ForwardMessagesP struct {
 // ForwardMessages forwards multiple messages.
 // Returns an array of message IDs of the sent messages.
 // See https://core.telegram.org/bots/api#forwardmessages
-func (api *API) ForwardMessages(params ForwardMessagesP) ([]MessageID, error) {
+func (api *API) ForwardMessages(params ForwardMessages) ([]MessageID, error) {
 	req := NewRequestWithChatID[[]MessageID]("forwardMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -95,14 +95,14 @@ func (api *API) ForwardMessages(params ForwardMessagesP) ([]MessageID, error) {
 // ForwardMessagesWithContext is the context-aware variant of ForwardMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#forwardmessages
-func (api *API) ForwardMessagesWithContext(ctx context.Context, params ForwardMessagesP) ([]MessageID, error) {
+func (api *API) ForwardMessagesWithContext(ctx context.Context, params ForwardMessages) ([]MessageID, error) {
 	req := NewRequestWithChatID[[]MessageID]("forwardMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// CopyMessageP holds parameters for the copyMessage method.
+// CopyMessage holds parameters for the copyMessage method.
 // See https://core.telegram.org/bots/api#copymessage
-type CopyMessageP struct {
+type CopyMessage struct {
 	ChatID                int64 `json:"chat_id"`
 	MessageThreadID       int   `json:"message_thread_id,omitempty"`
 	DirectMessagesTopicID int   `json:"direct_messages_topic_id,omitempty"`
@@ -128,7 +128,7 @@ type CopyMessageP struct {
 // CopyMessage copies a message.
 // Returns the MessageID of the sent copy.
 // See https://core.telegram.org/bots/api#copymessage
-func (api *API) CopyMessage(params CopyMessageP) (int, error) {
+func (api *API) CopyMessage(params CopyMessage) (int, error) {
 	msgID, err := NewRequestWithChatID[MessageID]("copyMessage", params, params.ChatID).Do(api)
 	if err != nil {
 		return 0, err
@@ -139,7 +139,7 @@ func (api *API) CopyMessage(params CopyMessageP) (int, error) {
 // CopyMessageWithContext is the context-aware variant of CopyMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#copymessage
-func (api *API) CopyMessageWithContext(ctx context.Context, params CopyMessageP) (int, error) {
+func (api *API) CopyMessageWithContext(ctx context.Context, params CopyMessage) (int, error) {
 	msgID, err := NewRequestWithChatID[MessageID]("copyMessage", params, params.ChatID).DoWithContext(ctx, api)
 	if err != nil {
 		return 0, err
@@ -147,9 +147,9 @@ func (api *API) CopyMessageWithContext(ctx context.Context, params CopyMessageP)
 	return msgID.MessageID, nil
 }
 
-// CopyMessagesP holds parameters for the copyMessages method.
+// CopyMessages holds parameters for the copyMessages method.
 // See https://core.telegram.org/bots/api#copymessages
-type CopyMessagesP struct {
+type CopyMessages struct {
 	ChatID                int64 `json:"chat_id"`
 	MessageThreadID       int   `json:"message_thread_id,omitempty"`
 	DirectMessagesTopicID int   `json:"direct_messages_topic_id,omitempty"`
@@ -164,7 +164,7 @@ type CopyMessagesP struct {
 // CopyMessages copies multiple messages.
 // Returns an array of message IDs of the sent copies.
 // See https://core.telegram.org/bots/api#copymessages
-func (api *API) CopyMessages(params CopyMessagesP) ([]MessageID, error) {
+func (api *API) CopyMessages(params CopyMessages) ([]MessageID, error) {
 	req := NewRequestWithChatID[[]MessageID]("copyMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -172,14 +172,14 @@ func (api *API) CopyMessages(params CopyMessagesP) ([]MessageID, error) {
 // CopyMessagesWithContext is the context-aware variant of CopyMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#copymessages
-func (api *API) CopyMessagesWithContext(ctx context.Context, params CopyMessagesP) ([]MessageID, error) {
+func (api *API) CopyMessagesWithContext(ctx context.Context, params CopyMessages) ([]MessageID, error) {
 	req := NewRequestWithChatID[[]MessageID]("copyMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendLocationP holds parameters for the sendLocation method.
+// SendLocation holds parameters for the sendLocation method.
 // See https://core.telegram.org/bots/api#sendlocation
-type SendLocationP struct {
+type SendLocation struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -204,7 +204,7 @@ type SendLocationP struct {
 
 // SendLocation sends a point on the map.
 // See https://core.telegram.org/bots/api#sendlocation
-func (api *API) SendLocation(params SendLocationP) (Message, error) {
+func (api *API) SendLocation(params SendLocation) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendLocation", params, params.ChatID)
 	return req.Do(api)
 }
@@ -212,14 +212,14 @@ func (api *API) SendLocation(params SendLocationP) (Message, error) {
 // SendLocationWithContext is the context-aware variant of SendLocation.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendlocation
-func (api *API) SendLocationWithContext(ctx context.Context, params SendLocationP) (Message, error) {
+func (api *API) SendLocationWithContext(ctx context.Context, params SendLocation) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendLocation", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendVenueP holds parameters for the sendVenue method.
+// SendVenue holds parameters for the sendVenue method.
 // See https://core.telegram.org/bots/api#sendvenue
-type SendVenueP struct {
+type SendVenue struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -246,7 +246,7 @@ type SendVenueP struct {
 
 // SendVenue sends information about a venue.
 // See https://core.telegram.org/bots/api#sendvenue
-func (api *API) SendVenue(params SendVenueP) (Message, error) {
+func (api *API) SendVenue(params SendVenue) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVenue", params, params.ChatID)
 	return req.Do(api)
 }
@@ -254,14 +254,14 @@ func (api *API) SendVenue(params SendVenueP) (Message, error) {
 // SendVenueWithContext is the context-aware variant of SendVenue.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvenue
-func (api *API) SendVenueWithContext(ctx context.Context, params SendVenueP) (Message, error) {
+func (api *API) SendVenueWithContext(ctx context.Context, params SendVenue) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendVenue", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendContactP holds parameters for the sendContact method.
+// SendContact holds parameters for the sendContact method.
 // See https://core.telegram.org/bots/api#sendcontact
-type SendContactP struct {
+type SendContact struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -284,7 +284,7 @@ type SendContactP struct {
 
 // SendContact sends a phone contact.
 // See https://core.telegram.org/bots/api#sendcontact
-func (api *API) SendContact(params SendContactP) (Message, error) {
+func (api *API) SendContact(params SendContact) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendContact", params, params.ChatID)
 	return req.Do(api)
 }
@@ -292,32 +292,40 @@ func (api *API) SendContact(params SendContactP) (Message, error) {
 // SendContactWithContext is the context-aware variant of SendContact.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendcontact
-func (api *API) SendContactWithContext(ctx context.Context, params SendContactP) (Message, error) {
+func (api *API) SendContactWithContext(ctx context.Context, params SendContact) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendContact", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendPollP holds parameters for the sendPoll method.
+// SendPoll holds parameters for the sendPoll method.
 // See https://core.telegram.org/bots/api#sendpoll
-type SendPollP struct {
+type SendPoll struct {
 	BusinessConnectionID string `json:"business_connection_id,omitempty"`
 	ChatID               int64  `json:"chat_id"`
 	MessageThreadID      int    `json:"message_thread_id,omitempty"`
 
-	Question              string            `json:"question"`
-	QuestionParseMode     ParseMode         `json:"question_parse_mode,omitempty"`
-	QuestionEntities      []MessageEntity   `json:"question_entities,omitempty"`
-	Options               []InputPollOption `json:"options"`
-	IsAnonymous           bool              `json:"is_anonymous,omitempty"`
-	Type                  PollType          `json:"type"`
-	AllowsMultipleAnswers bool              `json:"allows_multiple_answers,omitempty"`
-	CorrectOptionID       int               `json:"correct_option_id,omitempty"`
-	Explanation           string            `json:"explanation,omitempty"`
-	ExplanationParseMode  ParseMode         `json:"explanation_parse_mode,omitempty"`
-	ExplanationEntities   []MessageEntity   `json:"explanation_entities,omitempty"`
-	OpenPeriod            int               `json:"open_period,omitempty"`
-	CloseDate             int               `json:"close_date"`
-	IsClosed              bool              `json:"is_closed,omitempty"`
+	Question               string            `json:"question"`
+	QuestionParseMode      ParseMode         `json:"question_parse_mode,omitempty"`
+	QuestionEntities       []MessageEntity   `json:"question_entities,omitempty"`
+	Options                []InputPollOption `json:"options"`
+	IsAnonymous            bool              `json:"is_anonymous,omitempty"`
+	Type                   PollType          `json:"type"`
+	AllowsMultipleAnswers  bool              `json:"allows_multiple_answers,omitempty"`
+	AllowsRevoting         bool              `json:"allows_revoting,omitempty"`
+	ShuffleOptions         bool              `json:"shuffle_options,omitempty"`
+	AllowAddingOptions     bool              `json:"allow_adding_options,omitempty"`
+	HideResultsUntilCloses bool              `json:"hide_results_until_closes,omitempty"`
+	CorrectOptionIDs       []int             `json:"correct_option_ids,omitempty"`
+	Explanation            string            `json:"explanation,omitempty"`
+	ExplanationParseMode   ParseMode         `json:"explanation_parse_mode,omitempty"`
+	ExplanationEntities    []MessageEntity   `json:"explanation_entities,omitempty"`
+	OpenPeriod             int               `json:"open_period,omitempty"`
+	CloseDate              int               `json:"close_date"`
+	IsClosed               bool              `json:"is_closed,omitempty"`
+
+	Description          string          `json:"description"`
+	DescriptionParseMode ParseMode       `json:"description_parse_mode,omitempty"`
+	DescriptionEntities  []MessageEntity `json:"description_entities,omitempty"`
 
 	DisableNotification bool   `json:"disable_notification,omitempty"`
 	ProtectContent      bool   `json:"protect_content,omitempty"`
@@ -330,7 +338,7 @@ type SendPollP struct {
 
 // SendPoll sends a native poll.
 // See https://core.telegram.org/bots/api#sendpoll
-func (api *API) SendPoll(params SendPollP) (Message, error) {
+func (api *API) SendPoll(params SendPoll) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPoll", params, params.ChatID)
 	return req.Do(api)
 }
@@ -338,14 +346,14 @@ func (api *API) SendPoll(params SendPollP) (Message, error) {
 // SendPollWithContext is the context-aware variant of SendPoll.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendpoll
-func (api *API) SendPollWithContext(ctx context.Context, params SendPollP) (Message, error) {
+func (api *API) SendPollWithContext(ctx context.Context, params SendPoll) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendPoll", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendChecklistP holds parameters for the sendChecklist method.
+// SendChecklist holds parameters for the sendChecklist method.
 // See https://core.telegram.org/bots/api#sendchecklist
-type SendChecklistP struct {
+type SendChecklist struct {
 	BusinessConnectionID string         `json:"business_connection_id"`
 	ChatID               int64          `json:"chat_id"`
 	Checklist            InputChecklist `json:"checklist"`
@@ -360,7 +368,7 @@ type SendChecklistP struct {
 
 // SendChecklist sends a checklist.
 // See https://core.telegram.org/bots/api#sendchecklist
-func (api *API) SendChecklist(params SendChecklistP) (Message, error) {
+func (api *API) SendChecklist(params SendChecklist) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendChecklist", params, params.ChatID)
 	return req.Do(api)
 }
@@ -368,14 +376,14 @@ func (api *API) SendChecklist(params SendChecklistP) (Message, error) {
 // SendChecklistWithContext is the context-aware variant of SendChecklist.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendchecklist
-func (api *API) SendChecklistWithContext(ctx context.Context, params SendChecklistP) (Message, error) {
+func (api *API) SendChecklistWithContext(ctx context.Context, params SendChecklist) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendChecklist", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendDiceP holds parameters for the sendDice method.
+// SendDice holds parameters for the sendDice method.
 // See https://core.telegram.org/bots/api#senddice
-type SendDiceP struct {
+type SendDice struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -395,7 +403,7 @@ type SendDiceP struct {
 
 // SendDice sends a dice, which will have a random value.
 // See https://core.telegram.org/bots/api#senddice
-func (api *API) SendDice(params SendDiceP) (Message, error) {
+func (api *API) SendDice(params SendDice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendDice", params, params.ChatID)
 	return req.Do(api)
 }
@@ -403,14 +411,14 @@ func (api *API) SendDice(params SendDiceP) (Message, error) {
 // SendDiceWithContext is the context-aware variant of SendDice.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#senddice
-func (api *API) SendDiceWithContext(ctx context.Context, params SendDiceP) (Message, error) {
+func (api *API) SendDiceWithContext(ctx context.Context, params SendDice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendDice", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendMessageDraftP holds parameters for the sendMessageDraft method.
+// SendMessageDraft holds parameters for the sendMessageDraft method.
 // See https://core.telegram.org/bots/api#sendmessagedraft
-type SendMessageDraftP struct {
+type SendMessageDraft struct {
 	ChatID          int64           `json:"chat_id"`
 	MessageThreadID int             `json:"message_thread_id,omitempty"`
 	DraftID         uint64          `json:"draft_id"`
@@ -422,7 +430,7 @@ type SendMessageDraftP struct {
 // SendMessageDraft sends or updates a draft message in the target chat.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#sendmessagedraft
-func (api *API) SendMessageDraft(params SendMessageDraftP) (bool, error) {
+func (api *API) SendMessageDraft(params SendMessageDraft) (bool, error) {
 	req := NewRequestWithChatID[bool]("sendMessageDraft", params, params.ChatID)
 	return req.Do(api)
 }
@@ -430,14 +438,14 @@ func (api *API) SendMessageDraft(params SendMessageDraftP) (bool, error) {
 // SendMessageDraftWithContext is the context-aware variant of SendMessageDraft.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendmessagedraft
-func (api *API) SendMessageDraftWithContext(ctx context.Context, params SendMessageDraftP) (bool, error) {
+func (api *API) SendMessageDraftWithContext(ctx context.Context, params SendMessageDraft) (bool, error) {
 	req := NewRequestWithChatID[bool]("sendMessageDraft", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SendChatActionP holds parameters for the sendChatAction method.
+// SendChatAction holds parameters for the sendChatAction method.
 // See https://core.telegram.org/bots/api#sendchataction
-type SendChatActionP struct {
+type SendChatAction struct {
 	BusinessConnectionID string         `json:"business_connection_id,omitempty"`
 	ChatID               int64          `json:"chat_id"`
 	MessageThreadID      int            `json:"message_thread_id,omitempty"`
@@ -447,7 +455,7 @@ type SendChatActionP struct {
 // SendChatAction sends a chat action (typing, uploading photo, etc.).
 // Returns True on success.
 // See https://core.telegram.org/bots/api#sendchataction
-func (api *API) SendChatAction(params SendChatActionP) (bool, error) {
+func (api *API) SendChatAction(params SendChatAction) (bool, error) {
 	req := NewRequestWithChatID[bool]("sendChatAction", params, params.ChatID)
 	return req.Do(api)
 }
@@ -455,14 +463,14 @@ func (api *API) SendChatAction(params SendChatActionP) (bool, error) {
 // SendChatActionWithContext is the context-aware variant of SendChatAction.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendchataction
-func (api *API) SendChatActionWithContext(ctx context.Context, params SendChatActionP) (bool, error) {
+func (api *API) SendChatActionWithContext(ctx context.Context, params SendChatAction) (bool, error) {
 	req := NewRequestWithChatID[bool]("sendChatAction", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetMessageReactionP holds parameters for the setMessageReaction method.
+// SetMessageReaction holds parameters for the setMessageReaction method.
 // See https://core.telegram.org/bots/api#setmessagereaction
-type SetMessageReactionP struct {
+type SetMessageReaction struct {
 	ChatID    int64          `json:"chat_id"`
 	MessageId int            `json:"message_id"`
 	Reaction  []ReactionType `json:"reaction"`
@@ -472,7 +480,7 @@ type SetMessageReactionP struct {
 // SetMessageReaction changes the chosen reaction on a message.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setmessagereaction
-func (api *API) SetMessageReaction(params SetMessageReactionP) (bool, error) {
+func (api *API) SetMessageReaction(params SetMessageReaction) (bool, error) {
 	req := NewRequestWithChatID[bool]("setMessageReaction", params, params.ChatID)
 	return req.Do(api)
 }
@@ -480,14 +488,14 @@ func (api *API) SetMessageReaction(params SetMessageReactionP) (bool, error) {
 // SetMessageReactionWithContext is the context-aware variant of SetMessageReaction.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setmessagereaction
-func (api *API) SetMessageReactionWithContext(ctx context.Context, params SetMessageReactionP) (bool, error) {
+func (api *API) SetMessageReactionWithContext(ctx context.Context, params SetMessageReaction) (bool, error) {
 	req := NewRequestWithChatID[bool]("setMessageReaction", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditMessageTextP holds parameters for the editMessageText method.
+// EditMessageText holds parameters for the editMessageText method.
 // See https://core.telegram.org/bots/api#editmessagetext
-type EditMessageTextP struct {
+type EditMessageText struct {
 	BusinessConnectionID string              `json:"business_connection_id,omitempty"`
 	ChatID               int64               `json:"chat_id,omitempty"`
 	MessageID            int                 `json:"message_id,omitempty"`
@@ -503,7 +511,7 @@ type EditMessageTextP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#editmessagetext
-func (api *API) EditMessageText(params EditMessageTextP) (Message, bool, error) {
+func (api *API) EditMessageText(params EditMessageText) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageText", params, params.ChatID)
@@ -518,7 +526,7 @@ func (api *API) EditMessageText(params EditMessageTextP) (Message, bool, error)
 // EditMessageTextWithContext is the context-aware variant of EditMessageText.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagetext
-func (api *API) EditMessageTextWithContext(ctx context.Context, params EditMessageTextP) (Message, bool, error) {
+func (api *API) EditMessageTextWithContext(ctx context.Context, params EditMessageText) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageText", params, params.ChatID)
@@ -530,9 +538,9 @@ func (api *API) EditMessageTextWithContext(ctx context.Context, params EditMessa
 	return res, false, err
 }
 
-// EditMessageCaptionP holds parameters for the editMessageCaption method.
+// EditMessageCaption holds parameters for the editMessageCaption method.
 // See https://core.telegram.org/bots/api#editmessagecaption
-type EditMessageCaptionP struct {
+type EditMessageCaption struct {
 	BusinessConnectionID  string          `json:"business_connection_id,omitempty"`
 	ChatID                int64           `json:"chat_id,omitempty"`
 	MessageID             int             `json:"message_id,omitempty"`
@@ -548,7 +556,7 @@ type EditMessageCaptionP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#editmessagecaption
-func (api *API) EditMessageCaption(params EditMessageCaptionP) (Message, bool, error) {
+func (api *API) EditMessageCaption(params EditMessageCaption) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageCaption", params, params.ChatID)
@@ -563,7 +571,7 @@ func (api *API) EditMessageCaption(params EditMessageCaptionP) (Message, bool, e
 // EditMessageCaptionWithContext is the context-aware variant of EditMessageCaption.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagecaption
-func (api *API) EditMessageCaptionWithContext(ctx context.Context, params EditMessageCaptionP) (Message, bool, error) {
+func (api *API) EditMessageCaptionWithContext(ctx context.Context, params EditMessageCaption) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageCaption", params, params.ChatID)
@@ -575,9 +583,9 @@ func (api *API) EditMessageCaptionWithContext(ctx context.Context, params EditMe
 	return res, false, err
 }
 
-// EditMessageMediaP holds parameters for the editMessageMedia method.
+// EditMessageMedia holds parameters for the editMessageMedia method.
 // See https://core.telegram.org/bots/api#editmessagemedia
-type EditMessageMediaP struct {
+type EditMessageMedia struct {
 	BusinessConnectionID string                `json:"business_connection_id,omitempty"`
 	ChatID               int64                 `json:"chat_id,omitempty"`
 	MessageID            int                   `json:"message_id,omitempty"`
@@ -590,7 +598,7 @@ type EditMessageMediaP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#editmessagemedia
-func (api *API) EditMessageMedia(params EditMessageMediaP) (Message, bool, error) {
+func (api *API) EditMessageMedia(params EditMessageMedia) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageMedia", params, params.ChatID)
@@ -605,7 +613,7 @@ func (api *API) EditMessageMedia(params EditMessageMediaP) (Message, bool, error
 // EditMessageMediaWithContext is the context-aware variant of EditMessageMedia.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagemedia
-func (api *API) EditMessageMediaWithContext(ctx context.Context, params EditMessageMediaP) (Message, bool, error) {
+func (api *API) EditMessageMediaWithContext(ctx context.Context, params EditMessageMedia) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageMedia", params, params.ChatID)
@@ -617,9 +625,9 @@ func (api *API) EditMessageMediaWithContext(ctx context.Context, params EditMess
 	return res, false, err
 }
 
-// EditMessageLiveLocationP holds parameters for the editMessageLiveLocation method.
+// EditMessageLiveLocation holds parameters for the editMessageLiveLocation method.
 // See https://core.telegram.org/bots/api#editmessagelivelocation
-type EditMessageLiveLocationP struct {
+type EditMessageLiveLocation struct {
 	BusinessConnectionID string `json:"business_connection_id,omitempty"`
 	ChatID               int64  `json:"chat_id,omitempty"`
 	MessageID            int    `json:"message_id,omitempty"`
@@ -638,7 +646,7 @@ type EditMessageLiveLocationP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#editmessagelivelocation
-func (api *API) EditMessageLiveLocation(params EditMessageLiveLocationP) (Message, bool, error) {
+func (api *API) EditMessageLiveLocation(params EditMessageLiveLocation) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageLiveLocation", params, params.ChatID)
@@ -653,7 +661,7 @@ func (api *API) EditMessageLiveLocation(params EditMessageLiveLocationP) (Messag
 // EditMessageLiveLocationWithContext is the context-aware variant of EditMessageLiveLocation.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagelivelocation
-func (api *API) EditMessageLiveLocationWithContext(ctx context.Context, params EditMessageLiveLocationP) (Message, bool, error) {
+func (api *API) EditMessageLiveLocationWithContext(ctx context.Context, params EditMessageLiveLocation) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageLiveLocation", params, params.ChatID)
@@ -665,9 +673,9 @@ func (api *API) EditMessageLiveLocationWithContext(ctx context.Context, params E
 	return res, false, err
 }
 
-// StopMessageLiveLocationP holds parameters for the stopMessageLiveLocation method.
+// StopMessageLiveLocation holds parameters for the stopMessageLiveLocation method.
 // See https://core.telegram.org/bots/api#stopmessagelivelocation
-type StopMessageLiveLocationP struct {
+type StopMessageLiveLocation struct {
 	BusinessConnectionID string                `json:"business_connection_id,omitempty"`
 	ChatID               int64                 `json:"chat_id,omitempty"`
 	MessageID            int                   `json:"message_id,omitempty"`
@@ -679,7 +687,7 @@ type StopMessageLiveLocationP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#stopmessagelivelocation
-func (api *API) StopMessageLiveLocation(params StopMessageLiveLocationP) (Message, bool, error) {
+func (api *API) StopMessageLiveLocation(params StopMessageLiveLocation) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("stopMessageLiveLocation", params, params.ChatID)
@@ -694,7 +702,7 @@ func (api *API) StopMessageLiveLocation(params StopMessageLiveLocationP) (Messag
 // StopMessageLiveLocationWithContext is the context-aware variant of StopMessageLiveLocation.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#stopmessagelivelocation
-func (api *API) StopMessageLiveLocationWithContext(ctx context.Context, params StopMessageLiveLocationP) (Message, bool, error) {
+func (api *API) StopMessageLiveLocationWithContext(ctx context.Context, params StopMessageLiveLocation) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("stopMessageLiveLocation", params, params.ChatID)
@@ -706,8 +714,8 @@ func (api *API) StopMessageLiveLocationWithContext(ctx context.Context, params S
 	return res, false, err
 }
 
-// EditMessageChecklistP holds parameters for the editMessageChecklist method.
-type EditMessageChecklistP struct {
+// EditMessageChecklist holds parameters for the editMessageChecklist method.
+type EditMessageChecklist struct {
 	BusinessConnectionID string                `json:"business_connection_id"`
 	ChatID               int64                 `json:"chat_id"`
 	MessageID            int                   `json:"message_id"`
@@ -717,7 +725,7 @@ type EditMessageChecklistP struct {
 
 // EditMessageChecklist edits a checklist message.
 // See https://core.telegram.org/bots/api#editmessagechecklist
-func (api *API) EditMessageChecklist(params EditMessageChecklistP) (Message, error) {
+func (api *API) EditMessageChecklist(params EditMessageChecklist) (Message, error) {
 	req := NewRequestWithChatID[Message]("editMessageChecklist", params, params.ChatID)
 	return req.Do(api)
 }
@@ -725,14 +733,14 @@ func (api *API) EditMessageChecklist(params EditMessageChecklistP) (Message, err
 // EditMessageChecklistWithContext is the context-aware variant of EditMessageChecklist.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagechecklist
-func (api *API) EditMessageChecklistWithContext(ctx context.Context, params EditMessageChecklistP) (Message, error) {
+func (api *API) EditMessageChecklistWithContext(ctx context.Context, params EditMessageChecklist) (Message, error) {
 	req := NewRequestWithChatID[Message]("editMessageChecklist", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditMessageReplyMarkupP holds parameters for the editMessageReplyMarkup method.
+// EditMessageReplyMarkup holds parameters for the editMessageReplyMarkup method.
 // See https://core.telegram.org/bots/api#editmessagereplymarkup
-type EditMessageReplyMarkupP struct {
+type EditMessageReplyMarkup struct {
 	BusinessConnectionID string                `json:"business_connection_id,omitempty"`
 	ChatID               int64                 `json:"chat_id,omitempty"`
 	MessageID            int                   `json:"message_id,omitempty"`
@@ -744,7 +752,7 @@ type EditMessageReplyMarkupP struct {
 // If inline_message_id is provided, returns a boolean success flag;
 // otherwise returns the edited Message.
 // See https://core.telegram.org/bots/api#editmessagereplymarkup
-func (api *API) EditMessageReplyMarkup(params EditMessageReplyMarkupP) (Message, bool, error) {
+func (api *API) EditMessageReplyMarkup(params EditMessageReplyMarkup) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageReplyMarkup", params, params.ChatID)
@@ -759,7 +767,7 @@ func (api *API) EditMessageReplyMarkup(params EditMessageReplyMarkupP) (Message,
 // EditMessageReplyMarkupWithContext is the context-aware variant of EditMessageReplyMarkup.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#editmessagereplymarkup
-func (api *API) EditMessageReplyMarkupWithContext(ctx context.Context, params EditMessageReplyMarkupP) (Message, bool, error) {
+func (api *API) EditMessageReplyMarkupWithContext(ctx context.Context, params EditMessageReplyMarkup) (Message, bool, error) {
 	var zero Message
 	if params.InlineMessageID != "" {
 		req := NewRequestWithChatID[bool]("editMessageReplyMarkup", params, params.ChatID)
@@ -771,9 +779,9 @@ func (api *API) EditMessageReplyMarkupWithContext(ctx context.Context, params Ed
 	return res, false, err
 }
 
-// StopPollP holds parameters for the stopPoll method.
+// StopPoll holds parameters for the stopPoll method.
 // See https://core.telegram.org/bots/api#stoppoll
-type StopPollP struct {
+type StopPoll struct {
 	BusinessConnectionID string                `json:"business_connection_id,omitempty"`
 	ChatID               int64                 `json:"chat_id"`
 	MessageID            int                   `json:"message_id"`
@@ -783,7 +791,7 @@ type StopPollP struct {
 // StopPoll stops a poll that was sent by the bot.
 // Returns the stopped Poll.
 // See https://core.telegram.org/bots/api#stoppoll
-func (api *API) StopPoll(params StopPollP) (Poll, error) {
+func (api *API) StopPoll(params StopPoll) (Poll, error) {
 	req := NewRequestWithChatID[Poll]("stopPoll", params, params.ChatID)
 	return req.Do(api)
 }
@@ -791,14 +799,14 @@ func (api *API) StopPoll(params StopPollP) (Poll, error) {
 // StopPollWithContext is the context-aware variant of StopPoll.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#stoppoll
-func (api *API) StopPollWithContext(ctx context.Context, params StopPollP) (Poll, error) {
+func (api *API) StopPollWithContext(ctx context.Context, params StopPoll) (Poll, error) {
 	req := NewRequestWithChatID[Poll]("stopPoll", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// ApproveSuggestedPostP holds parameters for the approveSuggestedPost method.
+// ApproveSuggestedPost holds parameters for the approveSuggestedPost method.
 // See https://core.telegram.org/bots/api#approvesuggestedpost
-type ApproveSuggestedPostP struct {
+type ApproveSuggestedPost struct {
 	ChatID    int64 `json:"chat_id"`
 	MessageID int   `json:"message_id"`
 	SendDate  int   `json:"send_date,omitempty"`
@@ -807,7 +815,7 @@ type ApproveSuggestedPostP struct {
 // ApproveSuggestedPost approves a suggested channel post.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#approvesuggestedpost
-func (api *API) ApproveSuggestedPost(params ApproveSuggestedPostP) (bool, error) {
+func (api *API) ApproveSuggestedPost(params ApproveSuggestedPost) (bool, error) {
 	req := NewRequestWithChatID[bool]("approveSuggestedPost", params, params.ChatID)
 	return req.Do(api)
 }
@@ -815,14 +823,14 @@ func (api *API) ApproveSuggestedPost(params ApproveSuggestedPostP) (bool, error)
 // ApproveSuggestedPostWithContext is the context-aware variant of ApproveSuggestedPost.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#approvesuggestedpost
-func (api *API) ApproveSuggestedPostWithContext(ctx context.Context, params ApproveSuggestedPostP) (bool, error) {
+func (api *API) ApproveSuggestedPostWithContext(ctx context.Context, params ApproveSuggestedPost) (bool, error) {
 	req := NewRequestWithChatID[bool]("approveSuggestedPost", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeclineSuggestedPostP holds parameters for the declineSuggestedPost method.
+// DeclineSuggestedPost holds parameters for the declineSuggestedPost method.
 // See https://core.telegram.org/bots/api#declinesuggestedpost
-type DeclineSuggestedPostP struct {
+type DeclineSuggestedPost struct {
 	ChatID    int64  `json:"chat_id"`
 	MessageID int    `json:"message_id"`
 	Comment   string `json:"comment,omitempty"`
@@ -831,7 +839,7 @@ type DeclineSuggestedPostP struct {
 // DeclineSuggestedPost declines a suggested channel post.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#declinesuggestedpost
-func (api *API) DeclineSuggestedPost(params DeclineSuggestedPostP) (bool, error) {
+func (api *API) DeclineSuggestedPost(params DeclineSuggestedPost) (bool, error) {
 	req := NewRequestWithChatID[bool]("declineSuggestedPost", params, params.ChatID)
 	return req.Do(api)
 }
@@ -839,14 +847,14 @@ func (api *API) DeclineSuggestedPost(params DeclineSuggestedPostP) (bool, error)
 // DeclineSuggestedPostWithContext is the context-aware variant of DeclineSuggestedPost.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#declinesuggestedpost
-func (api *API) DeclineSuggestedPostWithContext(ctx context.Context, params DeclineSuggestedPostP) (bool, error) {
+func (api *API) DeclineSuggestedPostWithContext(ctx context.Context, params DeclineSuggestedPost) (bool, error) {
 	req := NewRequestWithChatID[bool]("declineSuggestedPost", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteMessageP holds parameters for the deleteMessage method.
+// DeleteMessage holds parameters for the deleteMessage method.
 // See https://core.telegram.org/bots/api#deletemessage
-type DeleteMessageP struct {
+type DeleteMessage struct {
 	ChatID    int64 `json:"chat_id"`
 	MessageID int   `json:"message_id"`
 }
@@ -854,7 +862,7 @@ type DeleteMessageP struct {
 // DeleteMessage deletes a message.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletemessage
-func (api *API) DeleteMessage(params DeleteMessageP) (bool, error) {
+func (api *API) DeleteMessage(params DeleteMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteMessage", params, params.ChatID)
 	return req.Do(api)
 }
@@ -862,14 +870,14 @@ func (api *API) DeleteMessage(params DeleteMessageP) (bool, error) {
 // DeleteMessageWithContext is the context-aware variant of DeleteMessage.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletemessage
-func (api *API) DeleteMessageWithContext(ctx context.Context, params DeleteMessageP) (bool, error) {
+func (api *API) DeleteMessageWithContext(ctx context.Context, params DeleteMessage) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteMessage", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteMessagesP holds parameters for the deleteMessages method.
+// DeleteMessages holds parameters for the deleteMessages method.
 // See https://core.telegram.org/bots/api#deletemessages
-type DeleteMessagesP struct {
+type DeleteMessages struct {
 	ChatID     int64 `json:"chat_id"`
 	MessageIDs []int `json:"message_ids"`
 }
@@ -877,7 +885,7 @@ type DeleteMessagesP struct {
 // DeleteMessages deletes multiple messages at once.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletemessages
-func (api *API) DeleteMessages(params DeleteMessagesP) (bool, error) {
+func (api *API) DeleteMessages(params DeleteMessages) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteMessages", params, params.ChatID)
 	return req.Do(api)
 }
@@ -885,14 +893,14 @@ func (api *API) DeleteMessages(params DeleteMessagesP) (bool, error) {
 // DeleteMessagesWithContext is the context-aware variant of DeleteMessages.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletemessages
-func (api *API) DeleteMessagesWithContext(ctx context.Context, params DeleteMessagesP) (bool, error) {
+func (api *API) DeleteMessagesWithContext(ctx context.Context, params DeleteMessages) (bool, error) {
 	req := NewRequestWithChatID[bool]("deleteMessages", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// AnswerCallbackQueryP holds parameters for the answerCallbackQuery method.
+// AnswerCallbackQuery holds parameters for the answerCallbackQuery method.
 // See https://core.telegram.org/bots/api#answercallbackquery
-type AnswerCallbackQueryP struct {
+type AnswerCallbackQuery struct {
 	CallbackQueryID string `json:"callback_query_id"`
 	Text            string `json:"text,omitempty"`
 	ShowAlert       bool   `json:"show_alert,omitempty"`
@@ -903,7 +911,7 @@ type AnswerCallbackQueryP struct {
 // AnswerCallbackQuery sends answers to callback queries sent from inline keyboards.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#answercallbackquery
-func (api *API) AnswerCallbackQuery(params AnswerCallbackQueryP) (bool, error) {
+func (api *API) AnswerCallbackQuery(params AnswerCallbackQuery) (bool, error) {
 	req := NewRequest[bool]("answerCallbackQuery", params)
 	return req.Do(api)
 }
@@ -911,7 +919,7 @@ func (api *API) AnswerCallbackQuery(params AnswerCallbackQueryP) (bool, error) {
 // AnswerCallbackQueryWithContext is the context-aware variant of AnswerCallbackQuery.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#answercallbackquery
-func (api *API) AnswerCallbackQueryWithContext(ctx context.Context, params AnswerCallbackQueryP) (bool, error) {
+func (api *API) AnswerCallbackQueryWithContext(ctx context.Context, params AnswerCallbackQuery) (bool, error) {
 	req := NewRequest[bool]("answerCallbackQuery", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/messages_types.go

@@ -1,64 +1,222 @@
 package tgapi
 
-import "git.nix13.pw/scuroneko/extypes"
+import (
+	"encoding/json"
+
+	"git.scuroneko.dev/scuroneko/extypes"
+)
 
 // MessageID represents a message identifier wrapper returned by some API methods.
 type MessageID struct {
 	MessageID int `json:"message_id"`
 }
 
-// MessageReplyMarkup represents an inline keyboard markup for a message.
-// It is used in the Message type.
-type MessageReplyMarkup struct {
-	InlineKeyboard [][]InlineKeyboardButton `json:"inline_keyboard"`
-}
-
 // DirectMessageTopic represents a forum topic in a direct message.
 type DirectMessageTopic struct {
 	TopicID int64 `json:"topic_id"`
 	User    *User `json:"user,omitempty"`
 }
 
+type MessageOriginType string
+
+const (
+	MessageOriginUserType       = "user"
+	MessageOriginHiddenUserType = "hidden_user"
+	MessageOriginChatType       = "chat"
+	MessageOriginChannel        = "channel"
+)
+
+type MessageOrigin struct {
+	Type MessageOriginType `json:"type"`
+	Date int64             `json:"date"`
+
+	SenderUser *User `json:"sender_user,omitempty"`
+
+	SenderUserName string `json:"sender_user_name,omitempty"`
+
+	SenderChat *Chat `json:"sender_chat,omitempty"`
+
+	Chat      *Chat `json:"chat,omitempty"`
+	MessageID int   `json:"message_id"`
+
+	AuthorSignature string `json:"author_signature,omitempty"`
+}
+
+type ExternalReplyInfo struct {
+	Origin             MessageOrigin       `json:"origin"`
+	Chat               *Chat               `json:"chat,omitempty"`
+	MessageID          int                 `json:"message_id,omitempty"`
+	LinkPreviewOptions *LinkPreviewOptions `json:"link_preview_options,omitempty"`
+	Animation          *Animation          `json:"animation,omitempty"`
+	Audio              *Audio              `json:"audio,omitempty"`
+	Document           *Document           `json:"document,omitempty"`
+	PaidMedia          *PaidMediaInfo      `json:"paid_media,omitempty"`
+	Photo              []PhotoSize         `json:"photo,omitempty"`
+	Sticker            *Sticker            `json:"sticker,omitempty"`
+	Story              *Story              `json:"story,omitempty"`
+	Video              *Video              `json:"video,omitempty"`
+	VideoNote          *VideoNote          `json:"video_note,omitempty"`
+	Voice              *Voice              `json:"voice,omitempty"`
+	HasMediaSpoiler    bool                `json:"has_media_spoiler,omitempty"`
+	Checklist          *Checklist          `json:"checklist,omitempty"`
+	Contact            *Contact            `json:"contact,omitempty"`
+	Dice               *Dice               `json:"dice,omitempty"`
+	Game               *Game               `json:"game,omitempty"`
+	Giveaway           *Giveaway           `json:"giveaway,omitempty"`
+	GiveawayWinners    *GiveawayWinners    `json:"giveaway_winners,omitempty"`
+	Invoice            *Invoice            `json:"invoice,omitempty"`
+	Location           *Location           `json:"location,omitempty"`
+	Poll               *Poll               `json:"poll,omitempty"`
+	Venue              *Venue              `json:"venue,omitempty"`
+}
+
+type TextQuote struct {
+	Text     string          `json:"text"`
+	Entities []MessageEntity `json:"entities"`
+	Position int             `json:"position"`
+	IsManual bool            `json:"is_manual,omitempty"`
+}
+
+type MessageAutoDeleteTimerChanged struct {
+	MessageAutoDeleteTime int `json:"message_auto_delete_time"`
+}
+
+type DirectMessagePriceChanged struct {
+	AreDirectMessagesEnabled bool `json:"are_direct_messages_enabled"`
+	DirectMessageStarCount   int  `json:"direct_message_star_count,omitempty"`
+}
+
+type PaidMessagePriceChanged struct {
+	PaidMessageStarCount int `json:"paid_message_star_count"`
+}
+
 // Message represents a Telegram message.
 // See https://core.telegram.org/bots/api#message
 type Message struct {
-	MessageID            int                 `json:"message_id"`
-	MessageThreadID      int                 `json:"message_thread_id,omitempty"`
-	DirectMessageTopic   *DirectMessageTopic `json:"direct_message_topic,omitempty"`
-	BusinessConnectionId string              `json:"business_connection_id,omitempty"`
-	From                 *User               `json:"from,omitempty"`
+	MessageID          int                 `json:"message_id"`
+	MessageThreadID    int                 `json:"message_thread_id,omitempty"`
+	DirectMessageTopic *DirectMessageTopic `json:"direct_message_topic,omitempty"`
+	From               *User               `json:"from,omitempty"`
 
-	SenderChat        *Chat  `json:"sender_chat,omitempty"`
-	SenderBoostCount  int    `json:"sender_boost_count,omitempty"`
-	SenderBusinessBot *User  `json:"sender_business_bot,omitempty"`
-	SenderTag         string `json:"sender_tag,omitempty"`
-	Chat              *Chat  `json:"chat,omitempty"`
+	SenderChat           *Chat          `json:"sender_chat,omitempty"`
+	SenderBoostCount     int            `json:"sender_boost_count,omitempty"`
+	SenderBusinessBot    *User          `json:"sender_business_bot,omitempty"`
+	SenderTag            string         `json:"sender_tag,omitempty"`
+	Date                 int            `json:"date"`
+	BusinessConnectionId string         `json:"business_connection_id,omitempty"`
+	Chat                 *Chat          `json:"chat,omitempty"`
+	ForwardOrigin        *MessageOrigin `json:"forward_origin,omitempty"`
 
-	IsTopicMessage     bool     `json:"is_topic_message,omitempty"`
-	IsAutomaticForward bool     `json:"is_automatic_forward,omitempty"`
-	IsFromOffline      bool     `json:"is_from_offline,omitempty"`
-	IsPaidPost         bool     `json:"is_paid_post,omitempty"`
-	MediaGroupId       string   `json:"media_group_id,omitempty"`
-	AuthorSignature    string   `json:"author_signature,omitempty"`
-	PaidStarCount      int      `json:"paid_star_count,omitempty"`
-	ReplyToMessage     *Message `json:"reply_to_message,omitempty"`
+	IsTopicMessage     bool               `json:"is_topic_message,omitempty"`
+	IsAutomaticForward bool               `json:"is_automatic_forward,omitempty"`
+	ReplyToMessage     *Message           `json:"reply_to_message,omitempty"`
+	ExternalReply      *ExternalReplyInfo `json:"external_reply,omitempty"`
+	Quote              *TextQuote         `json:"quote,omitempty"`
 
-	Text string `json:"text"`
-
-	Photo           extypes.Slice[*PhotoSize] `json:"photo,omitempty"`
-	Caption         string                    `json:"caption,omitempty"`
-	CaptionEntities []MessageEntity           `json:"caption_entities,omitempty"`
-
-	Date     int `json:"date"`
-	EditDate int `json:"edit_date"`
-
-	ReplyMarkup *MessageReplyMarkup `json:"reply_markup,omitempty"`
+	ReplyToStory           *Story `json:"reply_to_story,omitempty"`
+	ReplyToChecklistTaskID int    `json:"reply_to_checklist_task_id,omitempty"`
+	ReplyToPollOptionID    string `json:"reply_to_poll_option_id,omitempty"`
+	ViaBot                 *User  `json:"via_bot,omitempty"`
+	EditDate               int    `json:"edit_date,omitempty"`
+	HasProtectedContent    bool   `json:"has_protected_content,omitempty"`
+	IsFromOffline          bool   `json:"is_from_offline,omitempty"`
+	IsPaidPost             bool   `json:"is_paid_post,omitempty"`
+	MediaGroupId           string `json:"media_group_id,omitempty"`
+	AuthorSignature        string `json:"author_signature,omitempty"`
+	PaidStarCount          int    `json:"paid_star_count,omitempty"`
 
+	Text               string              `json:"text"`
 	Entities           []MessageEntity     `json:"entities,omitempty"`
 	LinkPreviewOptions *LinkPreviewOptions `json:"link_preview_options,omitempty"`
 	SuggestedPostInfo  *SuggestedPostInfo  `json:"suggested_post_info,omitempty"`
+	EffectID           string              `json:"effect_id,omitempty"`
 
-	EffectID string `json:"effect_id,omitempty"`
+	Animation             *Animation               `json:"animation,omitempty"`
+	Audio                 *Audio                   `json:"audio,omitempty"`
+	Document              *Document                `json:"document,omitempty"`
+	PaidMedia             *PaidMediaInfo           `json:"paid_media,omitempty"`
+	Photo                 extypes.Slice[PhotoSize] `json:"photo,omitempty"`
+	Sticker               *Sticker                 `json:"sticker,omitempty"`
+	Story                 *Story                   `json:"story,omitempty"`
+	Video                 *Video                   `json:"video,omitempty"`
+	VideoNote             *VideoNote               `json:"video_note,omitempty"`
+	Voice                 *Voice                   `json:"voice,omitempty"`
+	Caption               string                   `json:"caption,omitempty"`
+	CaptionEntities       []MessageEntity          `json:"caption_entities,omitempty"`
+	ShowCaptionAboveMedia bool                     `json:"show_caption_above_media,omitempty"`
+	HasMediaSpoiler       bool                     `json:"has_media_spoiler,omitempty"`
+	Checklist             *Checklist               `json:"checklist,omitempty"`
+	Contact               *Contact                 `json:"contact,omitempty"`
+	Dice                  *Dice                    `json:"dice,omitempty"`
+	Game                  *Game                    `json:"game,omitempty"`
+	Poll                  *Poll                    `json:"poll,omitempty"`
+	Venue                 *Venue                   `json:"venue,omitempty"`
+	Location              *Location                `json:"location,omitempty"`
+
+	NewChatMembers                []User                         `json:"new_chat_members,omitempty"`
+	LeftChatMember                *User                          `json:"left_chat_member,omitempty"`
+	ChatOwnerLeft                 *ChatOwnerLeft                 `json:"chat_owner_left,omitempty"`
+	ChatOwnerChanged              *ChatOwnerChanged              `json:"chat_owner_changed,omitempty"`
+	NewChatTitle                  string                         `json:"new_chat_title,omitempty"`
+	NewChatPhoto                  []PhotoSize                    `json:"new_chat_photo,omitempty"`
+	DeleteChatPhoto               bool                           `json:"delete_chat_photo,omitempty"`
+	GroupChatCreated              bool                           `json:"group_chat_created,omitempty"`
+	SupergroupChatCreated         bool                           `json:"supergroup_chat_created,omitempty"`
+	ChannelChatCreated            bool                           `json:"channel_chat_created,omitempty"`
+	MessageAutoDeleteTimerChanged *MessageAutoDeleteTimerChanged `json:"message_auto_delete_timer_changed,omitempty"`
+	MigrateToChatID               int64                          `json:"migrate_to_chat_id,omitempty"`
+	MigrateFromChatID             int64                          `json:"migrate_from_chat_id,omitempty"`
+	PinnedMessage                 *MaybeInaccessibleMessage      `json:"pinned_message,omitempty"`
+
+	Invoice           *Invoice           `json:"invoice,omitempty"`
+	SuccessfulPayment *SuccessfulPayment `json:"successful_payment,omitempty"`
+	RefundedPayment   *RefundedPayment   `json:"refunded_payment,omitempty"`
+	UsersShared       *UsersShared       `json:"users_shared,omitempty"`
+	ChatShared        *ChatShared        `json:"chat_shared,omitempty"`
+	Gift              *GiftInfo          `json:"gift,omitempty"`
+	UniqueGift        *UniqueGiftInfo    `json:"unique_gift,omitempty"`
+	GiftUpgradeSent   *GiftInfo          `json:"gift_upgrade_sent,omitempty"`
+
+	ConnectedWebsite        string                   `json:"connected_website,omitempty"`
+	WriteAccessAllowed      *WriteAccessAllowed      `json:"write_access_allowed,omitempty"`
+	PassportData            *PassportData            `json:"passport_data,omitempty"`
+	ProximityAlertTriggered *ProximityAlertTriggered `json:"proximity_alert_triggered,omitempty"`
+	BoostAdded              *ChatBoostAdded          `json:"boost_added,omitempty"`
+	ChatBackgroundSet       *ChatBackground          `json:"chat_background_set,omitempty"`
+
+	ChecklistTaskDone         *ChecklistTaskDone         `json:"checklist_task_done,omitempty"`
+	ChecklistTasksAdded       *ChecklistTasksAdded       `json:"checklist_tasks_added,omitempty"`
+	DirectMessagePriceChanged *DirectMessagePriceChanged `json:"direct_message_price_changed,omitempty"`
+	ForumTopicCreated         *ForumTopicCreated         `json:"forum_topic_created,omitempty"`
+	ForumTopicEdited          *ForumTopicEdited          `json:"forum_topic_edited,omitempty"`
+	ForumTopicClosed          *ForumTopicClosed          `json:"forum_topic_closed,omitempty"`
+	ForumTopicReopened        *ForumTopicReopened        `json:"forum_topic_reopened,omitempty"`
+	GeneralForumTopicHidden   *GeneralForumTopicHidden   `json:"general_forum_topic_hidden,omitempty"`
+	GeneralForumTopicUnhidden *GeneralForumTopicUnhidden `json:"general_forum_topic_unhidden,omitempty"`
+
+	GiveawayCreated   *GiveawayCreated   `json:"giveaway_created,omitempty"`
+	Giveaway          *Giveaway          `json:"giveaway,omitempty"`
+	GiveawayWinners   *GiveawayWinners   `json:"giveaway_winners,omitempty"`
+	GiveawayCompleted *GiveawayCompleted `json:"giveaway_completed,omitempty"`
+
+	ManagedBotCreated       *ManagedBotCreated       `json:"managed_bot_created,omitempty"`
+	PaidMessagePriceChanged *PaidMessagePriceChanged `json:"paid_message_price_changed,omitempty"`
+	PollOptionAdded         *PollOptionAdded         `json:"poll_option_added,omitempty"`
+	PollOptionDeleted       *PollOptionDeleted       `json:"poll_option_deleted,omitempty"`
+
+	SuggestedPostApproved       *SuggestedPostApproved       `json:"suggested_post_approved,omitempty"`
+	SuggestedPostApprovalFailed *SuggestedPostApprovalFailed `json:"suggested_post_approval_failed,omitempty"`
+	SuggestedPostDeclined       *SuggestedPostDeclined       `json:"suggested_post_declined,omitempty"`
+	SuggestedPostPaid           *SuggestedPostPaid           `json:"suggested_post_paid,omitempty"`
+	SuggestedPostRefunded       *SuggestedPostRefunded       `json:"suggested_post_refunded,omitempty"`
+
+	VideoChatScheduled           *VideoChatScheduled           `json:"video_chat_scheduled,omitempty"`
+	VideoChatStarted             *VideoChatStarted             `json:"video_chat_started,omitempty"`
+	VideoChatEnded               *VideoChatEnded               `json:"video_chat_ended,omitempty"`
+	VideoChatParticipantsInvited *VideoChatParticipantsInvited `json:"video_chat_participants_invited,omitempty"`
+
+	WebAppData  *WebAppData           `json:"web_app_data,omitempty"`
+	ReplyMarkup *InlineKeyboardMarkup `json:"reply_markup,omitempty"`
 }
 
 // InaccessibleMessage describes a message that was deleted or is otherwise inaccessible.
@@ -71,32 +229,125 @@ type InaccessibleMessage struct {
 
 // MaybeInaccessibleMessage is a union type that can be either Message or InaccessibleMessage.
 // See https://core.telegram.org/bots/api#maybeinaccessiblemessage
-type MaybeInaccessibleMessage interface{ Message | InaccessibleMessage }
+type MaybeInaccessibleMessage struct {
+	msg *Message
+	ina *InaccessibleMessage
+}
+
+// UnmarshalJSON decodes either an accessible Message or an InaccessibleMessage.
+func (m *MaybeInaccessibleMessage) UnmarshalJSON(data []byte) error {
+	tmp := struct {
+		Date int `json:"date"`
+	}{}
+	if err := json.Unmarshal(data, &tmp); err != nil {
+		return err
+	}
+	var err error
+	if tmp.Date > 0 {
+		err = json.Unmarshal(data, &m.msg)
+	} else {
+		err = json.Unmarshal(data, &m.ina)
+	}
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// MarshalJSON encodes the populated accessible or inaccessible message payload.
+func (m *MaybeInaccessibleMessage) MarshalJSON() ([]byte, error) {
+	if m.msg != nil {
+		return json.Marshal(m.msg)
+	} else if m.ina != nil {
+		return json.Marshal(m.ina)
+	}
+	return json.Marshal(nil)
+}
+
+// Message returns the accessible message payload when present.
+func (m *MaybeInaccessibleMessage) Message() *Message {
+	return m.msg
+}
+
+// InaccessibleMessage returns the inaccessible message payload when present.
+func (m *MaybeInaccessibleMessage) InaccessibleMessage() *InaccessibleMessage {
+	return m.ina
+}
+
+// IsAccessible reports whether the payload is an accessible message.
+func (m *MaybeInaccessibleMessage) IsAccessible() bool {
+	return m.msg != nil
+}
+
+// IsInaccessible reports whether the payload is an inaccessible message.
+func (m *MaybeInaccessibleMessage) IsInaccessible() bool {
+	return m.ina != nil
+}
+
+// MessageID returns the message identifier from either payload form.
+func (m *MaybeInaccessibleMessage) MessageID() int {
+	if m.IsAccessible() {
+		return m.msg.MessageID
+	} else if m.IsInaccessible() {
+		return m.ina.MessageID
+	}
+	return 0
+}
+
+// Chat returns the chat from either payload form.
+func (m *MaybeInaccessibleMessage) Chat() *Chat {
+	if m.IsAccessible() {
+		return m.msg.Chat
+	} else if m.IsInaccessible() {
+		return &m.ina.Chat
+	}
+	return nil
+}
 
 // MessageEntityType represents the type of a message entity.
 type MessageEntityType string
 
 const (
-	MessageEntityMention              MessageEntityType = "mention"
-	MessageEntityHashtag              MessageEntityType = "hashtag"
-	MessageEntityCashtag              MessageEntityType = "cashtag"
-	MessageEntityBotCommand           MessageEntityType = "bot_command"
-	MessageEntityUrl                  MessageEntityType = "url"
-	MessageEntityEmail                MessageEntityType = "email"
-	MessageEntityPhoneNumber          MessageEntityType = "phone_number"
-	MessageEntityBold                 MessageEntityType = "bold"
-	MessageEntityItalic               MessageEntityType = "italic"
-	MessageEntityUnderline            MessageEntityType = "underline"
-	MessageEntityStrike               MessageEntityType = "strikethrough"
-	MessageEntitySpoiler              MessageEntityType = "spoiler"
-	MessageEntityBlockquote           MessageEntityType = "blockquote"
+	// MessageEntityMention identifies an @mention entity.
+	MessageEntityMention MessageEntityType = "mention"
+	// MessageEntityHashtag identifies a hashtag entity.
+	MessageEntityHashtag MessageEntityType = "hashtag"
+	// MessageEntityCashtag identifies a cashtag entity.
+	MessageEntityCashtag MessageEntityType = "cashtag"
+	// MessageEntityBotCommand identifies a bot command entity.
+	MessageEntityBotCommand MessageEntityType = "bot_command"
+	// MessageEntityUrl identifies a URL entity.
+	MessageEntityUrl MessageEntityType = "url"
+	// MessageEntityEmail identifies an email entity.
+	MessageEntityEmail MessageEntityType = "email"
+	// MessageEntityPhoneNumber identifies a phone number entity.
+	MessageEntityPhoneNumber MessageEntityType = "phone_number"
+	// MessageEntityBold identifies bold text.
+	MessageEntityBold MessageEntityType = "bold"
+	// MessageEntityItalic identifies italic text.
+	MessageEntityItalic MessageEntityType = "italic"
+	// MessageEntityUnderline identifies underlined text.
+	MessageEntityUnderline MessageEntityType = "underline"
+	// MessageEntityStrike identifies strikethrough text.
+	MessageEntityStrike MessageEntityType = "strikethrough"
+	// MessageEntitySpoiler identifies spoiler text.
+	MessageEntitySpoiler MessageEntityType = "spoiler"
+	// MessageEntityBlockquote identifies a blockquote entity.
+	MessageEntityBlockquote MessageEntityType = "blockquote"
+	// MessageEntityExpandableBlockquote identifies an expandable blockquote entity.
 	MessageEntityExpandableBlockquote MessageEntityType = "expandable_blockquote"
-	MessageEntityCode                 MessageEntityType = "code"
-	MessageEntityPre                  MessageEntityType = "pre"
-	MessageEntityTextLink             MessageEntityType = "text_link"
-	MessageEntityTextMention          MessageEntityType = "text_mention"
-	MessageEntityCustomEmoji          MessageEntityType = "custom_emoji"
-	MessageEntityDateTime             MessageEntityType = "date_time"
+	// MessageEntityCode identifies inline code.
+	MessageEntityCode MessageEntityType = "code"
+	// MessageEntityPre identifies a preformatted block.
+	MessageEntityPre MessageEntityType = "pre"
+	// MessageEntityTextLink identifies linked text.
+	MessageEntityTextLink MessageEntityType = "text_link"
+	// MessageEntityTextMention identifies a text mention.
+	MessageEntityTextMention MessageEntityType = "text_mention"
+	// MessageEntityCustomEmoji identifies a custom emoji entity.
+	MessageEntityCustomEmoji MessageEntityType = "custom_emoji"
+	// MessageEntityDateTime identifies a date-time entity.
+	MessageEntityDateTime MessageEntityType = "date_time"
 )
 
 // MessageEntity represents one special entity in a text message.
@@ -121,12 +372,13 @@ type ReplyParameters struct {
 	MessageID int   `json:"message_id"`
 	ChatID    int64 `json:"chat_id,omitempty"`
 
-	AllowSendingWithoutReply bool             `json:"allow_sending_without_reply,omitempty"`
-	Quote                    string           `json:"quote,omitempty"`
-	QuoteParsingMode         string           `json:"quote_parsing_mode,omitempty"`
-	QuoteEntities            []*MessageEntity `json:"quote_entities,omitempty"`
-	QuotePosition            int              `json:"quote_position,omitempty"`
-	ChecklistTaskID          int              `json:"checklist_task_id,omitempty"`
+	AllowSendingWithoutReply bool            `json:"allow_sending_without_reply,omitempty"`
+	Quote                    string          `json:"quote,omitempty"`
+	QuoteParsingMode         string          `json:"quote_parsing_mode,omitempty"`
+	QuoteEntities            []MessageEntity `json:"quote_entities,omitempty"`
+	QuotePosition            int             `json:"quote_position,omitempty"`
+	ChecklistTaskID          int             `json:"checklist_task_id,omitempty"`
+	PollOptionID             string          `json:"poll_option_id,omitempty"`
 }
 
 // LinkPreviewOptions describes the options used for link preview generation.
@@ -166,23 +418,27 @@ type InlineKeyboardMarkup struct {
 type KeyboardButtonStyle string
 
 const (
-	KeyboardButtonStyleDanger  KeyboardButtonStyle = "danger"
+	// KeyboardButtonStyleDanger marks a destructive keyboard button.
+	KeyboardButtonStyleDanger KeyboardButtonStyle = "danger"
+	// KeyboardButtonStyleSuccess marks a confirmatory keyboard button.
 	KeyboardButtonStyleSuccess KeyboardButtonStyle = "success"
+	// KeyboardButtonStylePrimary marks a primary keyboard button.
 	KeyboardButtonStylePrimary KeyboardButtonStyle = "primary"
 )
 
 // KeyboardButton represents one button of the reply keyboard.
 // See https://core.telegram.org/bots/api#keyboardbutton
 type KeyboardButton struct {
-	Text              string                      `json:"text"`
-	IconCustomEmojiID string                      `json:"icon_custom_emoji_id,omitempty"`
-	Style             KeyboardButtonStyle         `json:"style,omitempty"`
-	RequestUsers      *KeyboardButtonRequestUsers `json:"request_users,omitempty"`
-	RequestChat       *KeyboardButtonRequestChat  `json:"request_chat,omitempty"`
-	RequestContact    bool                        `json:"request_contact,omitempty"`
-	RequestLocation   bool                        `json:"request_location,omitempty"`
-	RequestPoll       *KeyboardButtonPollType     `json:"request_poll,omitempty"`
-	WebApp            *WebAppInfo                 `json:"web_app,omitempty"`
+	Text              string                           `json:"text"`
+	IconCustomEmojiID string                           `json:"icon_custom_emoji_id,omitempty"`
+	Style             KeyboardButtonStyle              `json:"style,omitempty"`
+	RequestUsers      *KeyboardButtonRequestUsers      `json:"request_users,omitempty"`
+	RequestChat       *KeyboardButtonRequestChat       `json:"request_chat,omitempty"`
+	RequestManagedBot *KeyboardButtonRequestManagedBot `json:"request_managed_bot,omitempty"`
+	RequestContact    bool                             `json:"request_contact,omitempty"`
+	RequestLocation   bool                             `json:"request_location,omitempty"`
+	RequestPoll       *KeyboardButtonPollType          `json:"request_poll,omitempty"`
+	WebApp            *WebAppInfo                      `json:"web_app,omitempty"`
 }
 
 // KeyboardButtonRequestUsers defines criteria used to request suitable users.
@@ -213,6 +469,14 @@ type KeyboardButtonRequestChat struct {
 	RequestPhoto            bool                     `json:"request_photo,omitempty"`
 }
 
+// KeyboardButtonRequestManagedBot defines criteria used to request a managed bot.
+// See https://core.telegram.org/bots/api#keyboardbuttonrequestmanagedbot
+type KeyboardButtonRequestManagedBot struct {
+	RequestID         int32  `json:"request_id"`
+	SuggestedName     string `json:"suggested_name,omitempty"`
+	SuggestedUsername string `json:"suggested_username,omitempty"`
+}
+
 // KeyboardButtonPollType represents the type of a poll that may be created from a keyboard button.
 // See https://core.telegram.org/bots/api#keyboardbuttonpolltype
 type KeyboardButtonPollType struct {
@@ -252,52 +516,27 @@ type CallbackQuery struct {
 	GameShortName   string   `json:"game_short_name,omitempty"`
 }
 
-// InputPollOption contains information about one answer option in a poll to be sent.
-// See https://core.telegram.org/bots/api#inputpolloption
-type InputPollOption struct {
-	Text          string           `json:"text"`
-	TextParseMode ParseMode        `json:"text_parse_mode,omitempty"`
-	TextEntities  []*MessageEntity `json:"text_entities,omitempty"`
-}
-
-// PollType represents the type of a poll.
-type PollType string
-
-const (
-	PollTypeRegular PollType = "regular"
-	PollTypeQuiz    PollType = "quiz"
-)
-
-// InputChecklistTask describes a task in a checklist.
-type InputChecklistTask struct {
-	ID           int              `json:"id"`
-	Text         string           `json:"text"`
-	ParseMode    ParseMode        `json:"parse_mode,omitempty"`
-	TextEntities []*MessageEntity `json:"text_entities,omitempty"`
-}
-
-// InputChecklist represents a checklist to be sent.
-type InputChecklist struct {
-	Title                   string               `json:"title"`
-	ParseMode               ParseMode            `json:"parse_mode,omitempty"`
-	TitleEntities           []*MessageEntity     `json:"title_entities,omitempty"`
-	Tasks                   []InputChecklistTask `json:"tasks"`
-	OtherCanAddTasks        bool                 `json:"other_can_add_tasks,omitempty"`
-	OtherCanMarkTasksAsDone bool                 `json:"other_can_mark_tasks_as_done,omitempty"`
-}
-
 // ChatActionType represents the type of chat action.
 type ChatActionType string
 
 const (
-	ChatActionTyping          ChatActionType = "typing"
-	ChatActionUploadPhoto     ChatActionType = "upload_photo"
-	ChatActionUploadVideo     ChatActionType = "upload_video"
-	ChatActionUploadVoice     ChatActionType = "upload_voice"
-	ChatActionUploadDocument  ChatActionType = "upload_document"
-	ChatActionChooseSticker   ChatActionType = "choose_sticker"
-	ChatActionFindLocation    ChatActionType = "find_location"
+	// ChatActionTyping tells Telegram the bot is typing.
+	ChatActionTyping ChatActionType = "typing"
+	// ChatActionUploadPhoto tells Telegram the bot is uploading a photo.
+	ChatActionUploadPhoto ChatActionType = "upload_photo"
+	// ChatActionUploadVideo tells Telegram the bot is uploading a video.
+	ChatActionUploadVideo ChatActionType = "upload_video"
+	// ChatActionUploadVoice tells Telegram the bot is uploading a voice message.
+	ChatActionUploadVoice ChatActionType = "upload_voice"
+	// ChatActionUploadDocument tells Telegram the bot is uploading a document.
+	ChatActionUploadDocument ChatActionType = "upload_document"
+	// ChatActionChooseSticker tells Telegram the bot is choosing a sticker.
+	ChatActionChooseSticker ChatActionType = "choose_sticker"
+	// ChatActionFindLocation tells Telegram the bot is finding a location.
+	ChatActionFindLocation ChatActionType = "find_location"
+	// ChatActionUploadVideoNote tells Telegram the bot is uploading a video note.
 	ChatActionUploadVideoNote ChatActionType = "upload_video_note"
+	// ChatActionUploadVideoNone is a deprecated alias for ChatActionUploadVideoNote.
 	ChatActionUploadVideoNone ChatActionType = ChatActionUploadVideoNote
 )
 
@@ -358,3 +597,70 @@ type SuggestedPostParameters struct {
 	Price    SuggestedPostPrice `json:"price"`
 	SendDate int                `json:"send_date"`
 }
+
+// ManagedBotCreated describes a service message about a newly created managed bot.
+// See https://core.telegram.org/bots/api#managedbotcreated
+type ManagedBotCreated struct {
+	Bot User `json:"bot"`
+}
+
+// ManagedBotUpdated describes an update about a managed bot and its manager.
+// See https://core.telegram.org/bots/api#managedbotupdated
+type ManagedBotUpdated struct {
+	User User `json:"user"`
+	Bot  User `json:"bot"`
+}
+
+type SharedUser struct {
+	UserID    int64       `json:"user_id"`
+	FirstName string      `json:"first_name,omitempty"`
+	LastName  string      `json:"last_name,omitempty"`
+	Username  string      `json:"username,omitempty"`
+	Photo     []PhotoSize `json:"photo,omitempty"`
+}
+type UsersShared struct {
+	RequestID int          `json:"request_id"`
+	Users     []SharedUser `json:"users"`
+}
+type ChatShared struct {
+	RequestID int         `json:"request_id"`
+	ChatID    int64       `json:"chat_id"`
+	Title     string      `json:"title,omitempty"`
+	Username  string      `json:"username,omitempty"`
+	Photo     []PhotoSize `json:"photo,omitempty"`
+}
+
+type SuggestedPostApproved struct {
+	SuggestedPostMessage *Message           `json:"suggested_post_message,omitempty"`
+	Price                SuggestedPostPrice `json:"price"`
+	SendDate             int                `json:"send_date"`
+}
+type SuggestedPostApprovalFailed struct {
+	SuggestedPostMessage *Message           `json:"suggested_post_message,omitempty"`
+	Price                SuggestedPostPrice `json:"price"`
+}
+type SuggestedPostDeclined struct {
+	SuggestedPostMessage *Message `json:"suggested_post_message,omitempty"`
+	Comment              string   `json:"comment,omitempty"`
+}
+type SuggestedPostPaid struct {
+	SuggestedPostMessage *Message    `json:"suggested_post_message,omitempty"`
+	Currency             string      `json:"currency"`
+	Amount               int         `json:"amount"`
+	StarAmount           *StarAmount `json:"star_amount,omitempty"`
+}
+type SuggestedPostRefunded struct {
+	SuggestedPostMessage *Message `json:"suggested_post_message,omitempty"`
+	Reason               string   `json:"reason,omitempty"`
+}
+
+type VideoChatScheduled struct {
+	StartDate int64 `json:"start_date"`
+}
+type VideoChatStarted struct{}
+type VideoChatEnded struct {
+	Duration int64 `json:"duration"`
+}
+type VideoChatParticipantsInvited struct {
+	Users []User `json:"users"`
+}

tgapi/methods.go

@@ -6,7 +6,7 @@ import (
 	"io"
 	"net/http"
 
-	"git.nix13.pw/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
 )
 
 // UpdateParams holds parameters for the getUpdates method.
@@ -33,6 +33,48 @@ func (api *API) GetMeWithContext(ctx context.Context) (User, error) {
 	return req.DoWithContext(ctx, api)
 }
 
+// GetManagedBotToken holds parameters for the getManagedBotToken method.
+// See https://core.telegram.org/bots/api#getmanagedbottoken
+type GetManagedBotToken struct {
+	UserID int64 `json:"user_id"`
+}
+
+// GetManagedBotToken returns the current token of a managed bot.
+// See https://core.telegram.org/bots/api#getmanagedbottoken
+func (api *API) GetManagedBotToken(params GetManagedBotToken) (string, error) {
+	req := NewRequest[string]("getManagedBotToken", params)
+	return req.Do(api)
+}
+
+// GetManagedBotTokenWithContext is the context-aware variant of GetManagedBotToken.
+// It executes the same request but uses ctx for cancellation and deadlines.
+// See https://core.telegram.org/bots/api#getmanagedbottoken
+func (api *API) GetManagedBotTokenWithContext(ctx context.Context, params GetManagedBotToken) (string, error) {
+	req := NewRequest[string]("getManagedBotToken", params)
+	return req.DoWithContext(ctx, api)
+}
+
+// ReplaceManagedBotToken holds parameters for the replaceManagedBotToken method.
+// See https://core.telegram.org/bots/api#replacemanagedbottoken
+type ReplaceManagedBotToken struct {
+	UserID int64 `json:"user_id"`
+}
+
+// ReplaceManagedBotToken replaces and returns the token of a managed bot.
+// See https://core.telegram.org/bots/api#replacemanagedbottoken
+func (api *API) ReplaceManagedBotToken(params ReplaceManagedBotToken) (string, error) {
+	req := NewRequest[string]("replaceManagedBotToken", params)
+	return req.Do(api)
+}
+
+// ReplaceManagedBotTokenWithContext is the context-aware variant of ReplaceManagedBotToken.
+// It executes the same request but uses ctx for cancellation and deadlines.
+// See https://core.telegram.org/bots/api#replacemanagedbottoken
+func (api *API) ReplaceManagedBotTokenWithContext(ctx context.Context, params ReplaceManagedBotToken) (string, error) {
+	req := NewRequest[string]("replaceManagedBotToken", params)
+	return req.DoWithContext(ctx, api)
+}
+
 // LogOut logs the bot out from the cloud Bot API server.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#logout
@@ -80,13 +122,13 @@ func (api *API) GetUpdatesWithContext(ctx context.Context, params UpdateParams)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetWebhookP holds parameters for the setWebhook method.
+// SetWebhook holds parameters for the setWebhook method.
 // To upload a self-signed certificate, use Uploader.SetWebhook.
 // See https://core.telegram.org/bots/api#setwebhook
-type SetWebhookP struct {
+type SetWebhook struct {
 	URL                string       `json:"url"`
 	IPAddress          string       `json:"ip_address,omitempty"`
-	MaxConnections     int          `json:"max_connections,omitempty"`
+	MaxConnections     int8         `json:"max_connections,omitempty"`
 	AllowedUpdates     []UpdateType `json:"allowed_updates,omitempty"`
 	DropPendingUpdates bool         `json:"drop_pending_updates,omitempty"`
 	SecretToken        string       `json:"secret_token,omitempty"`
@@ -96,7 +138,7 @@ type SetWebhookP struct {
 // For certificate upload, use Uploader.SetWebhook.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setwebhook
-func (api *API) SetWebhook(params SetWebhookP) (bool, error) {
+func (api *API) SetWebhook(params SetWebhook) (bool, error) {
 	req := NewRequest[bool]("setWebhook", params)
 	return req.Do(api)
 }
@@ -105,21 +147,21 @@ func (api *API) SetWebhook(params SetWebhookP) (bool, error) {
 // It executes the same request but uses ctx for cancellation and deadlines.
 // For certificate upload, use Uploader.SetWebhook.
 // See https://core.telegram.org/bots/api#setwebhook
-func (api *API) SetWebhookWithContext(ctx context.Context, params SetWebhookP) (bool, error) {
+func (api *API) SetWebhookWithContext(ctx context.Context, params SetWebhook) (bool, error) {
 	req := NewRequest[bool]("setWebhook", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteWebhookP holds parameters for the deleteWebhook method.
+// DeleteWebhook holds parameters for the deleteWebhook method.
 // See https://core.telegram.org/bots/api#deletewebhook
-type DeleteWebhookP struct {
+type DeleteWebhook struct {
 	DropPendingUpdates bool `json:"drop_pending_updates,omitempty"`
 }
 
 // DeleteWebhook removes the current webhook integration.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#deletewebhook
-func (api *API) DeleteWebhook(params DeleteWebhookP) (bool, error) {
+func (api *API) DeleteWebhook(params DeleteWebhook) (bool, error) {
 	req := NewRequest[bool]("deleteWebhook", params)
 	return req.Do(api)
 }
@@ -127,7 +169,7 @@ func (api *API) DeleteWebhook(params DeleteWebhookP) (bool, error) {
 // DeleteWebhookWithContext is the context-aware variant of DeleteWebhook.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletewebhook
-func (api *API) DeleteWebhookWithContext(ctx context.Context, params DeleteWebhookP) (bool, error) {
+func (api *API) DeleteWebhookWithContext(ctx context.Context, params DeleteWebhook) (bool, error) {
 	req := NewRequest[bool]("deleteWebhook", params)
 	return req.DoWithContext(ctx, api)
 }
@@ -147,15 +189,15 @@ func (api *API) GetWebhookInfoWithContext(ctx context.Context) (WebhookInfo, err
 	return req.DoWithContext(ctx, api)
 }
 
-// GetFileP holds parameters for the getFile method.
+// GetFile holds parameters for the getFile method.
 // See https://core.telegram.org/bots/api#getfile
-type GetFileP struct {
-	FileId string `json:"file_id"`
+type GetFile struct {
+	FileID string `json:"file_id"`
 }
 
 // GetFile returns basic information about a file and prepares it for downloading.
 // See https://core.telegram.org/bots/api#getfile
-func (api *API) GetFile(params GetFileP) (File, error) {
+func (api *API) GetFile(params GetFile) (File, error) {
 	req := NewRequest[File]("getFile", params)
 	return req.Do(api)
 }
@@ -163,13 +205,14 @@ func (api *API) GetFile(params GetFileP) (File, error) {
 // GetFileWithContext is the context-aware variant of GetFile.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getfile
-func (api *API) GetFileWithContext(ctx context.Context, params GetFileP) (File, error) {
+func (api *API) GetFileWithContext(ctx context.Context, params GetFile) (File, error) {
 	req := NewRequest[File]("getFile", params)
 	return req.DoWithContext(ctx, api)
 }
 
 // GetFileByLink downloads a file from Telegram's file server using the provided file link.
 // The link is usually obtained from File.FilePath.
+// For large files, prefer OpenFileByLink or OpenFileByLinkWithContext to stream the response body.
 // See https://core.telegram.org/bots/api#file
 func (api *API) GetFileByLink(link string) ([]byte, error) {
 	return api.getFileByLink(context.Background(), link)
@@ -177,12 +220,38 @@ func (api *API) GetFileByLink(link string) ([]byte, error) {
 
 // GetFileByLinkWithContext is the context-aware variant of GetFileByLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
+// For large files, prefer OpenFileByLinkWithContext to stream the response body.
 // See https://core.telegram.org/bots/api#file
 func (api *API) GetFileByLinkWithContext(ctx context.Context, link string) ([]byte, error) {
 	return api.getFileByLink(ctx, link)
 }
 
+// OpenFileByLink opens a streaming response body for a file hosted on Telegram's file server.
+// The caller must close the returned ReadCloser.
+// See https://core.telegram.org/bots/api#file
+func (api *API) OpenFileByLink(link string) (io.ReadCloser, error) {
+	return api.openFileByLink(context.Background(), link)
+}
+
+// OpenFileByLinkWithContext is the context-aware variant of OpenFileByLink.
+// The caller must close the returned ReadCloser.
+// See https://core.telegram.org/bots/api#file
+func (api *API) OpenFileByLinkWithContext(ctx context.Context, link string) (io.ReadCloser, error) {
+	return api.openFileByLink(ctx, link)
+}
+
 func (api *API) getFileByLink(ctx context.Context, link string) ([]byte, error) {
+	body, err := api.openFileByLink(ctx, link)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = body.Close()
+	}()
+	return io.ReadAll(body)
+}
+
+func (api *API) openFileByLink(ctx context.Context, link string) (io.ReadCloser, error) {
 	methodPrefix := ""
 	if api.useTestServer {
 		methodPrefix = "/test"
@@ -199,15 +268,15 @@ func (api *API) getFileByLink(ctx context.Context, link string) ([]byte, error)
 	if err != nil {
 		return nil, err
 	}
-	defer func() {
-		_ = res.Body.Close()
-	}()
 	if res.StatusCode < http.StatusOK || res.StatusCode >= http.StatusMultipleChoices {
+		defer func() {
+			_ = res.Body.Close()
+		}()
 		body, readErr := io.ReadAll(io.LimitReader(res.Body, 4<<10))
 		if readErr != nil {
 			return nil, fmt.Errorf("unexpected status %d", res.StatusCode)
 		}
 		return nil, fmt.Errorf("unexpected status %d: %s", res.StatusCode, string(body))
 	}
-	return io.ReadAll(res.Body)
+	return res.Body, nil
 }

tgapi/methods_test.go

@@ -44,6 +44,44 @@ func TestGetFileByLinkUsesConfiguredAPIURL(t *testing.T) {
 	}
 }
 
+func TestOpenFileByLinkStreamsResponseBody(t *testing.T) {
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(&http.Client{
+				Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+					return &http.Response{
+						StatusCode: http.StatusOK,
+						Body:       io.NopCloser(strings.NewReader("streamed payload")),
+					}, nil
+				}),
+			}),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	body, err := api.OpenFileByLink("files/report.txt")
+	if err != nil {
+		t.Fatalf("OpenFileByLink returned error: %v", err)
+	}
+	defer func() {
+		if err := body.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	data, err := io.ReadAll(body)
+	if err != nil {
+		t.Fatalf("failed to read body: %v", err)
+	}
+	if string(data) != "streamed payload" {
+		t.Fatalf("unexpected payload: %q", string(data))
+	}
+}
+
 func TestGetFileByLinkReturnsHTTPStatusError(t *testing.T) {
 	client := &http.Client{
 		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
@@ -113,3 +151,60 @@ func TestGetUpdatesOmitsAllowedUpdatesWhenEmpty(t *testing.T) {
 		t.Fatalf("expected allowed_updates to be omitted, got %v", gotBody["allowed_updates"])
 	}
 }
+
+func TestSetChatMenuButtonSendsStructuredMenuButton(t *testing.T) {
+	var gotBody map[string]any
+
+	client := &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Fatalf("failed to read request body: %v", err)
+			}
+			if err := json.Unmarshal(body, &gotBody); err != nil {
+				t.Fatalf("failed to decode request body: %v", err)
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     http.Header{"Content-Type": []string{"application/json"}},
+				Body:       io.NopCloser(strings.NewReader(`{"ok":true,"result":true}`)),
+			}, nil
+		}),
+	}
+
+	api := NewAPI(
+		NewAPIOpts("token").
+			SetAPIUrl("https://example.test").
+			SetHTTPClient(client),
+	)
+	defer func() {
+		if err := api.Close(); err != nil {
+			t.Fatalf("Close returned error: %v", err)
+		}
+	}()
+
+	text := "Open"
+	if _, err := api.SetChatMenuButton(SetChatMenuButton{
+		ChatID: 42,
+		MenuButton: &MenuButton{
+			Type: MenuButtonWebAppType,
+			Text: &text,
+			WebApp: &WebAppInfo{
+				URL: "https://example.test/app",
+			},
+		},
+	}); err != nil {
+		t.Fatalf("SetChatMenuButton returned error: %v", err)
+	}
+
+	menuButton, ok := gotBody["menu_button"].(map[string]any)
+	if !ok {
+		t.Fatalf("expected structured menu_button, got %#v", gotBody["menu_button"])
+	}
+	if menuButton["type"] != string(MenuButtonWebAppType) {
+		t.Fatalf("unexpected menu button type: %#v", menuButton["type"])
+	}
+	if menuButton["text"] != text {
+		t.Fatalf("unexpected menu button text: %#v", menuButton["text"])
+	}
+}

tgapi/methods_types.go

@@ -10,8 +10,8 @@ const (
 	ParseHTML ParseMode = "HTML"
 	// ParseMD enables legacy Markdown style parsing.
 	ParseMD ParseMode = "Markdown"
-	// ParseNone disables any parsing.
-	ParseNone ParseMode = "None"
+	// ParseNone disables parse_mode and leaves plain-text requests unannotated.
+	ParseNone ParseMode = ""
 )
 
 // EmptyParams is a placeholder for methods that take no parameters.
@@ -19,17 +19,3 @@ type EmptyParams struct{}
 
 // NoParams is a convenient instance of EmptyParams.
 var NoParams = EmptyParams{}
-
-// WebhookInfo describes the current webhook status.
-// See https://core.telegram.org/bots/api#webhookinfo
-type WebhookInfo struct {
-	URL                          string   `json:"url"`
-	HasCustomCertificate         bool     `json:"has_custom_certificate"`
-	PendingUpdateCount           int      `json:"pending_update_count"`
-	IPAddress                    string   `json:"ip_address,omitempty"`
-	LastErrorDate                int      `json:"last_error_date,omitempty"`
-	LastErrorMessage             string   `json:"last_error_message,omitempty"`
-	LastSynchronizationErrorDate int      `json:"last_synchronization_error_date,omitempty"`
-	MaxConnections               int      `json:"max_connections,omitempty"`
-	AllowedUpdates               []string `json:"allowed_updates,omitempty"`
-}

tgapi/parse_mode_test.go

@@ -0,0 +1,37 @@
+package tgapi
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+)
+
+func TestParseNoneOmitsParseModeInJSON(t *testing.T) {
+	data, err := json.Marshal(SendMessage{
+		ChatID:    42,
+		Text:      "hello",
+		ParseMode: ParseNone,
+	})
+	if err != nil {
+		t.Fatalf("Marshal returned error: %v", err)
+	}
+
+	if strings.Contains(string(data), `"parse_mode"`) {
+		t.Fatalf("expected parse_mode to be omitted, got %s", string(data))
+	}
+}
+
+func TestParseModeStillSerializesExplicitModes(t *testing.T) {
+	data, err := json.Marshal(SendMessage{
+		ChatID:    42,
+		Text:      "hello",
+		ParseMode: ParseMDV2,
+	})
+	if err != nil {
+		t.Fatalf("Marshal returned error: %v", err)
+	}
+
+	if !strings.Contains(string(data), `"parse_mode":"MarkdownV2"`) {
+		t.Fatalf("expected MarkdownV2 parse_mode, got %s", string(data))
+	}
+}

tgapi/passport_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SetPassportDataErrorsP holds parameters for the setPassportDataErrors method.
+// SetPassportDataErrors holds parameters for the setPassportDataErrors method.
 // See https://core.telegram.org/bots/api#setpassportdataerrors
-type SetPassportDataErrorsP struct {
+type SetPassportDataErrors struct {
 	UserID int64                  `json:"user_id"`
 	Errors []PassportElementError `json:"errors"`
 }
@@ -12,7 +12,7 @@ type SetPassportDataErrorsP struct {
 // SetPassportDataErrors informs a user about Telegram Passport data errors.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setpassportdataerrors
-func (api *API) SetPassportDataErrors(params SetPassportDataErrorsP) (bool, error) {
+func (api *API) SetPassportDataErrors(params SetPassportDataErrors) (bool, error) {
 	req := NewRequest[bool]("setPassportDataErrors", params)
 	return req.Do(api)
 }
@@ -20,7 +20,7 @@ func (api *API) SetPassportDataErrors(params SetPassportDataErrorsP) (bool, erro
 // SetPassportDataErrorsWithContext is the context-aware variant of SetPassportDataErrors.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setpassportdataerrors
-func (api *API) SetPassportDataErrorsWithContext(ctx context.Context, params SetPassportDataErrorsP) (bool, error) {
+func (api *API) SetPassportDataErrorsWithContext(ctx context.Context, params SetPassportDataErrors) (bool, error) {
 	req := NewRequest[bool]("setPassportDataErrors", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/passport_types.go

@@ -1,5 +1,64 @@
 package tgapi
 
+type PassportData struct {
+	Data        []EncryptedPassportElement `json:"data"`
+	Credentials EncryptedCredentials       `json:"credentials"`
+}
+type PassportFile struct {
+	FileID       string `json:"file_id"`
+	FileUniqueID string `json:"file_unique_id"`
+	FileSize     int64  `json:"file_size"`
+	FileDate     int64  `json:"file_date"`
+}
+type PassportElementType string
+
+const (
+	PassportPersonalDetailsType       PassportElementType = "personal_details"
+	PassportPassportType              PassportElementType = "passport"
+	PassportDriverLicenseType         PassportElementType = "driver_license"
+	PassportIdentityCardType          PassportElementType = "identity_card"
+	PassportInternalPassportType      PassportElementType = "internal_passport"
+	PassportAddressType               PassportElementType = "address"
+	PassportUtilityBillType           PassportElementType = "utility_bill"
+	PassportBankStatementType         PassportElementType = "bank_statement"
+	PassportRentalAgreementType       PassportElementType = "rental_agreement"
+	PassportPassportRegistrationType  PassportElementType = "passport_registration"
+	PassportTemporaryRegistrationType PassportElementType = "temporary_registration"
+	PassportPhoneNumberType           PassportElementType = "phone_number"
+	PassportEmailType                 PassportElementType = "email"
+)
+
+type EncryptedPassportElement struct {
+	Type        PassportElementType `json:"type"`
+	Data        string              `json:"data,omitempty"`
+	PhoneNumber string              `json:"phone_number,omitempty"`
+	Email       string              `json:"email,omitempty"`
+	Files       []PassportFile      `json:"files,omitempty"`
+	FrontSide   *PassportFile       `json:"front_side,omitempty"`
+	ReverseSide *PassportFile       `json:"reverse_side,omitempty"`
+	Selfie      *PassportFile       `json:"selfie,omitempty"`
+	Translation *PassportFile       `json:"translation,omitempty"`
+	Hash        string              `json:"hash,omitempty"`
+}
+type EncryptedCredentials struct {
+	Data   string `json:"data"`
+	Hash   string `json:"hash"`
+	Secret string `json:"secret"`
+}
+
 // PassportElementError is a JSON-serializable passport element error object.
 // See https://core.telegram.org/bots/api#passportelementerror
-type PassportElementError map[string]any
+type PassportElementError struct {
+	Source string              `json:"source"`
+	Type   PassportElementType `json:"type"`
+
+	FieldName string `json:"field_name,omitempty"`
+	DataHash  string `json:"data_hash,omitempty"`
+
+	FileHash   string   `json:"file_hash,omitempty"`
+	FileHashes []string `json:"file_hashes,omitempty"`
+
+	ElementHash string `json:"element_hash,omitempty"`
+
+	Message string `json:"message"`
+}

tgapi/payments_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SendInvoiceP holds parameters for the sendInvoice method.
+// SendInvoice holds parameters for the sendInvoice method.
 // See https://core.telegram.org/bots/api#sendinvoice
-type SendInvoiceP struct {
+type SendInvoice struct {
 	ChatID                int64 `json:"chat_id"`
 	MessageThreadID       int   `json:"message_thread_id,omitempty"`
 	DirectMessagesTopicID int   `json:"direct_messages_topic_id,omitempty"`
@@ -43,7 +43,7 @@ type SendInvoiceP struct {
 
 // SendInvoice sends an invoice.
 // See https://core.telegram.org/bots/api#sendinvoice
-func (api *API) SendInvoice(params SendInvoiceP) (Message, error) {
+func (api *API) SendInvoice(params SendInvoice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendInvoice", params, params.ChatID)
 	return req.Do(api)
 }
@@ -51,14 +51,14 @@ func (api *API) SendInvoice(params SendInvoiceP) (Message, error) {
 // SendInvoiceWithContext is the context-aware variant of SendInvoice.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendinvoice
-func (api *API) SendInvoiceWithContext(ctx context.Context, params SendInvoiceP) (Message, error) {
+func (api *API) SendInvoiceWithContext(ctx context.Context, params SendInvoice) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendInvoice", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// CreateInvoiceLinkP holds parameters for the createInvoiceLink method.
+// CreateInvoiceLink holds parameters for the createInvoiceLink method.
 // See https://core.telegram.org/bots/api#createinvoicelink
-type CreateInvoiceLinkP struct {
+type CreateInvoiceLink struct {
 	BusinessConnectionID string `json:"business_connection_id,omitempty"`
 
 	Title         string         `json:"title"`
@@ -87,7 +87,7 @@ type CreateInvoiceLinkP struct {
 
 // CreateInvoiceLink creates an invoice link.
 // See https://core.telegram.org/bots/api#createinvoicelink
-func (api *API) CreateInvoiceLink(params CreateInvoiceLinkP) (string, error) {
+func (api *API) CreateInvoiceLink(params CreateInvoiceLink) (string, error) {
 	req := NewRequest[string]("createInvoiceLink", params)
 	return req.Do(api)
 }
@@ -95,14 +95,14 @@ func (api *API) CreateInvoiceLink(params CreateInvoiceLinkP) (string, error) {
 // CreateInvoiceLinkWithContext is the context-aware variant of CreateInvoiceLink.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#createinvoicelink
-func (api *API) CreateInvoiceLinkWithContext(ctx context.Context, params CreateInvoiceLinkP) (string, error) {
+func (api *API) CreateInvoiceLinkWithContext(ctx context.Context, params CreateInvoiceLink) (string, error) {
 	req := NewRequest[string]("createInvoiceLink", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// AnswerShippingQueryP holds parameters for the answerShippingQuery method.
+// AnswerShippingQuery holds parameters for the answerShippingQuery method.
 // See https://core.telegram.org/bots/api#answershippingquery
-type AnswerShippingQueryP struct {
+type AnswerShippingQuery struct {
 	ShippingQueryID string           `json:"shipping_query_id"`
 	OK              bool             `json:"ok"`
 	ShippingOptions []ShippingOption `json:"shipping_options,omitempty"`
@@ -112,7 +112,7 @@ type AnswerShippingQueryP struct {
 // AnswerShippingQuery answers a shipping query.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#answershippingquery
-func (api *API) AnswerShippingQuery(params AnswerShippingQueryP) (bool, error) {
+func (api *API) AnswerShippingQuery(params AnswerShippingQuery) (bool, error) {
 	req := NewRequest[bool]("answerShippingQuery", params)
 	return req.Do(api)
 }
@@ -120,14 +120,14 @@ func (api *API) AnswerShippingQuery(params AnswerShippingQueryP) (bool, error) {
 // AnswerShippingQueryWithContext is the context-aware variant of AnswerShippingQuery.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#answershippingquery
-func (api *API) AnswerShippingQueryWithContext(ctx context.Context, params AnswerShippingQueryP) (bool, error) {
+func (api *API) AnswerShippingQueryWithContext(ctx context.Context, params AnswerShippingQuery) (bool, error) {
 	req := NewRequest[bool]("answerShippingQuery", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// AnswerPreCheckoutQueryP holds parameters for the answerPreCheckoutQuery method.
+// AnswerPreCheckoutQuery holds parameters for the answerPreCheckoutQuery method.
 // See https://core.telegram.org/bots/api#answerprecheckoutquery
-type AnswerPreCheckoutQueryP struct {
+type AnswerPreCheckoutQuery struct {
 	PreCheckoutQueryID string `json:"pre_checkout_query_id"`
 	OK                 bool   `json:"ok"`
 	ErrorMessage       string `json:"error_message,omitempty"`
@@ -136,7 +136,7 @@ type AnswerPreCheckoutQueryP struct {
 // AnswerPreCheckoutQuery answers a pre-checkout query.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#answerprecheckoutquery
-func (api *API) AnswerPreCheckoutQuery(params AnswerPreCheckoutQueryP) (bool, error) {
+func (api *API) AnswerPreCheckoutQuery(params AnswerPreCheckoutQuery) (bool, error) {
 	req := NewRequest[bool]("answerPreCheckoutQuery", params)
 	return req.Do(api)
 }
@@ -144,7 +144,7 @@ func (api *API) AnswerPreCheckoutQuery(params AnswerPreCheckoutQueryP) (bool, er
 // AnswerPreCheckoutQueryWithContext is the context-aware variant of AnswerPreCheckoutQuery.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#answerprecheckoutquery
-func (api *API) AnswerPreCheckoutQueryWithContext(ctx context.Context, params AnswerPreCheckoutQueryP) (bool, error) {
+func (api *API) AnswerPreCheckoutQueryWithContext(ctx context.Context, params AnswerPreCheckoutQuery) (bool, error) {
 	req := NewRequest[bool]("answerPreCheckoutQuery", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/payments_types.go

@@ -7,6 +7,62 @@ type LabeledPrice struct {
 	Amount int    `json:"amount"`
 }
 
+type Invoice struct {
+	Title          string `json:"title"`
+	Description    string `json:"description"`
+	StartParameter string `json:"start_parameter"`
+	Currency       string `json:"currency"`
+	TotalAmount    int    `json:"total_amount"`
+}
+
+// ShippingQuery represents an incoming shipping query.
+// See https://core.telegram.org/bots/api#shippingquery
+type ShippingQuery struct {
+	ID              string          `json:"id"`
+	From            User            `json:"from"`
+	InvoicePayload  string          `json:"invoice_payload"`
+	ShippingAddress ShippingAddress `json:"shipping_address"`
+}
+
+// ShippingAddress represents a shipping address.
+// See https://core.telegram.org/bots/api#shippingaddress
+type ShippingAddress struct {
+	CountryCode string `json:"country_code"`
+	State       string `json:"state"`
+	City        string `json:"city"`
+	StreetLine1 string `json:"street_line1"`
+	StreetLine2 string `json:"street_line2"`
+	PostCode    string `json:"post_code"`
+}
+
+// OrderInfo represents information about an order.
+// See https://core.telegram.org/bots/api#orderinfo
+type OrderInfo struct {
+	Name            string          `json:"name"`
+	PhoneNumber     string          `json:"phone_number"`
+	Email           string          `json:"email"`
+	ShippingAddress ShippingAddress `json:"shipping_address"`
+}
+
+// PreCheckoutQuery represents an incoming pre-checkout query.
+// See https://core.telegram.org/bots/api#precheckoutquery
+type PreCheckoutQuery struct {
+	ID               string     `json:"id"`
+	From             User       `json:"from"`
+	Currency         string     `json:"currency"`
+	TotalAmount      int        `json:"total_amount"`
+	InvoicePayload   string     `json:"invoice_payload"`
+	ShippingOptionID string     `json:"shipping_option_id"`
+	OrderInfo        *OrderInfo `json:"order_info,omitempty"`
+}
+
+// PaidMediaPurchased represents a purchased paid media.
+// See https://core.telegram.org/bots/api#paidmediapurchased
+type PaidMediaPurchased struct {
+	From             User   `json:"from"`
+	PaidMediaPayload string `json:"paid_media_payload"`
+}
+
 // ShippingOption represents one shipping option.
 // See https://core.telegram.org/bots/api#shippingoption
 type ShippingOption struct {
@@ -14,3 +70,27 @@ type ShippingOption struct {
 	Title  string         `json:"title"`
 	Prices []LabeledPrice `json:"prices"`
 }
+
+type SuccessfulPayment struct {
+	Currency       string `json:"currency"`
+	TotalAmount    int    `json:"total_amount"`
+	InvoicePayload string `json:"invoice_payload"`
+
+	SubscriptionExpirationDate int        `json:"subscription_expiration_date,omitempty"`
+	IsRecurring                bool       `json:"is_recurring,omitempty"`
+	IsFirstRecurring           bool       `json:"is_first_recurring,omitempty"`
+	ShippingOptionID           string     `json:"shipping_option_id,omitempty"`
+	OrderInfo                  *OrderInfo `json:"order_info,omitempty"`
+
+	TelegramPaymentChargeID string `json:"telegram_payment_charge_id"`
+	ProviderPaymentChargeID string `json:"proviced_payment_charge_id"`
+}
+
+type RefundedPayment struct {
+	Currency       string `json:"currency"`
+	TotalAmount    int    `json:"total_amount"`
+	InvoicePayload string `json:"invoice_payload"`
+
+	TelegramPaymentChargeID string `json:"telegram_payment_charge_id"`
+	ProviderPaymentChargeID string `json:"proviced_payment_charge_id,omitempty"`
+}

tgapi/pool.go

@@ -5,44 +5,35 @@ import (
 	"sync"
 )
 
-// workerPool — приватная структура, управляющая пулом воркеров.
-// Внешний код не может создавать или напрямую взаимодействовать с этой структурой.
-// Используется только через экспортируемые методы newWorkerPool, start, stop, submit.
 type workerPool struct {
-	taskCh    chan requestEnvelope // канал для принятия задач (буферизованный)
-	queueSize int                  // максимальный размер очереди
-	workers   int                  // количество воркеров (горутин)
-	wg        sync.WaitGroup       // синхронизирует завершение всех воркеров при остановке
-	quit      chan struct{}        // канал для сигнала остановки
-	stopOnce  sync.Once            // гарантирует идемпотентную остановку пула
-	started   bool                 // флаг, указывающий, запущен ли пул
-	stopped   bool                 // флаг, указывающий, что пул остановлен
-	startedMu sync.Mutex           // мьютекс для безопасного доступа к started
+	taskCh    chan requestEnvelope
+	queueSize int
+	workers   int
+	wg        sync.WaitGroup
+	quit      chan struct{}
+	stopOnce  sync.Once
+	started   bool
+	stopped   bool
+	startedMu sync.Mutex
 }
 
-// requestEnvelope — приватная структура, инкапсулирующая задачу и канал для результата.
-// Используется только внутри пакета для передачи задач воркерам.
 type requestEnvelope struct {
-	ctx      context.Context                    // контекст конкретной задачи
-	doFunc   func(context.Context) (any, error) // функция, выполняющая запрос
-	resultCh chan requestResult                 // канал, через который воркер вернёт результат
+	ctx      context.Context
+	doFunc   func(context.Context) (any, error)
+	resultCh chan requestResult
 }
 
-// requestResult — приватная структура, представляющая результат выполнения задачи.
-// Внешний код получает его через канал, но не знает структуры — только через <-chan requestResult.
 type requestResult struct {
-	value any   // значение, возвращённое задачей
-	err   error // ошибка, если возникла
+	value any
+	err   error
 }
 
-// newWorkerPool создаёт новый пул воркеров с заданным количеством горутин и размером очереди.
-// Это единственный способ создать workerPool — внешний код не может создать его напрямую.
 func newWorkerPool(workers int, queueSize int) *workerPool {
 	if workers <= 0 {
-		workers = 1 // защита от некорректных значений
+		workers = 1
 	}
 	if queueSize <= 0 {
-		queueSize = 100 // разумный дефолт
+		queueSize = 100
 	}
 
 	return &workerPool{
@@ -53,43 +44,32 @@ func newWorkerPool(workers int, queueSize int) *workerPool {
 	}
 }
 
-// start запускает воркеры (горутины), которые будут обрабатывать задачи из очереди.
-// Метод идемпотентен: если пул уже запущен — ничего не делает.
-// Должен вызываться перед первым вызовом submit.
 func (p *workerPool) start() {
 	p.startedMu.Lock()
 	defer p.startedMu.Unlock()
 	if p.started {
-		return // уже запущен — ничего не делаем
+		return
 	}
 	p.started = true
 
-	// Запускаем воркеры — каждый будет обрабатывать задачи в бесконечном цикле
 	for i := 0; i < p.workers; i++ {
 		p.wg.Add(1)
-		go p.worker() // запускаем горутину
+		go p.worker()
 	}
 }
 
-// stop останавливает пул воркеров.
-// Отправляет сигнал остановки через quit-канал и ждёт завершения всех активных задач.
-// Безопасно вызывать многократно — после остановки повторные вызовы не имеют эффекта.
 func (p *workerPool) stop() {
 	p.stopOnce.Do(func() {
 		p.startedMu.Lock()
 		p.stopped = true
 		p.started = false
-		close(p.quit) // сигнал для всех воркеров — выйти из цикла
+		close(p.quit)
 		p.startedMu.Unlock()
 
-		p.wg.Wait() // ждём, пока все воркеры завершатся
+		p.wg.Wait()
 	})
 }
 
-// submit отправляет задачу в очередь и возвращает канал, через который будет получен результат.
-// Если очередь переполнена — возвращает ErrPoolQueueFull.
-// Канал результата имеет буфер 1, чтобы не блокировать воркера при записи.
-// Контекст используется для отмены задачи, если клиент отменил запрос до отправки.
 func (p *workerPool) submit(ctx context.Context, do func(context.Context) (any, error)) (<-chan requestResult, error) {
 	p.startedMu.Lock()
 	if p.stopped || !p.started {
@@ -97,55 +77,39 @@ func (p *workerPool) submit(ctx context.Context, do func(context.Context) (any,
 		return nil, ErrPoolStopped
 	}
 
-	// Проверяем, не превышена ли очередь
 	if len(p.taskCh) >= p.queueSize {
 		p.startedMu.Unlock()
 		return nil, ErrPoolQueueFull
 	}
 
-	// Создаём канал для результата — буферизованный, чтобы не блокировать воркера
 	resultCh := make(chan requestResult, 1)
 
-	// Создаём обёртку задачи
 	envelope := requestEnvelope{
 		ctx:      ctx,
 		doFunc:   do,
 		resultCh: resultCh,
 	}
 
-	// Пытаемся отправить задачу в очередь
 	select {
 	case <-ctx.Done():
 		p.startedMu.Unlock()
-		// Клиент отменил операцию до отправки — возвращаем ошибку отмены
 		return nil, ctx.Err()
 	case p.taskCh <- envelope:
 		p.startedMu.Unlock()
-		// Успешно отправлено — возвращаем канал для чтения результата
 		return resultCh, nil
 	default:
 		p.startedMu.Unlock()
-		// Очередь переполнена — не должно происходить при проверке len(p.taskCh), но на всякий случай
 		return nil, ErrPoolQueueFull
 	}
 }
 
-// worker — приватная горутина, выполняющая задачи из очереди.
-// Каждый воркер работает в бесконечном цикле, пока не получит сигнал остановки.
-// При получении задачи:
-//   - вызывает doFunc с контекстом
-//   - записывает результат в resultCh
-//   - закрывает канал, чтобы клиент мог прочитать и завершить
-//
-// После закрытия quit-канала — воркер завершает работу.
 func (p *workerPool) worker() {
-	defer p.wg.Done() // уменьшаем WaitGroup при завершении горутины
+	defer p.wg.Done()
 
 	for {
 		select {
 		case <-p.quit:
-			// Получен сигнал остановки — дренируем очередь и выходим.
-			// После stop() новые задачи не принимаются.
+			// Drain queued work after stop. No new tasks are accepted.
 			for {
 				select {
 				case envelope := <-p.taskCh:
@@ -162,14 +126,10 @@ func (p *workerPool) worker() {
 }
 
 func (p *workerPool) executeEnvelope(envelope requestEnvelope) {
-	// Выполняем задачу с переданным контекстом (клиентский или общий)
 	value, err := envelope.doFunc(envelope.ctx)
-
-	// Записываем результат в канал — не блокируем, т.к. буфер 1
 	envelope.resultCh <- requestResult{
 		value: value,
 		err:   err,
 	}
-	// Закрываем канал — клиент знает, что результат пришёл и больше не будет
 	close(envelope.resultCh)
 }

tgapi/pool_test.go

@@ -0,0 +1,62 @@
+package tgapi
+
+import (
+	"context"
+	"errors"
+	"testing"
+)
+
+func TestWorkerPoolSubmitAfterStop(t *testing.T) {
+	pool := newWorkerPool(1, 1)
+	pool.start()
+	pool.stop()
+
+	if _, err := pool.submit(context.Background(), func(context.Context) (any, error) {
+		return nil, nil
+	}); !errors.Is(err, ErrPoolStopped) {
+		t.Fatalf("expected ErrPoolStopped, got %v", err)
+	}
+}
+
+func TestWorkerPoolQueueFull(t *testing.T) {
+	pool := newWorkerPool(1, 1)
+	pool.start()
+	defer pool.stop()
+
+	started := make(chan struct{})
+	release := make(chan struct{})
+
+	firstResult, err := pool.submit(context.Background(), func(context.Context) (any, error) {
+		close(started)
+		<-release
+		return "first", nil
+	})
+	if err != nil {
+		t.Fatalf("first submit returned error: %v", err)
+	}
+	<-started
+
+	secondResult, err := pool.submit(context.Background(), func(context.Context) (any, error) {
+		return "second", nil
+	})
+	if err != nil {
+		t.Fatalf("second submit returned error: %v", err)
+	}
+
+	if _, err := pool.submit(context.Background(), func(context.Context) (any, error) {
+		return "third", nil
+	}); !errors.Is(err, ErrPoolQueueFull) {
+		t.Fatalf("expected ErrPoolQueueFull, got %v", err)
+	}
+
+	close(release)
+
+	first := <-firstResult
+	if first.err != nil || first.value != "first" {
+		t.Fatalf("unexpected first result: %+v", first)
+	}
+	second := <-secondResult
+	if second.err != nil || second.value != "second" {
+		t.Fatalf("unexpected second result: %+v", second)
+	}
+}

tgapi/stars_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// GetStarTransactionsP holds parameters for the getStarTransactions method.
+// GetStarTransactions holds parameters for the getStarTransactions method.
 // See https://core.telegram.org/bots/api#getstartransactions
-type GetStarTransactionsP struct {
+type GetStarTransactions struct {
 	Offset int `json:"offset,omitempty"`
 	Limit  int `json:"limit,omitempty"`
 }
@@ -26,7 +26,7 @@ func (api *API) GetMyStarBalanceWithContext(ctx context.Context) (StarAmount, er
 
 // GetStarTransactions returns Telegram Star transactions for the bot.
 // See https://core.telegram.org/bots/api#getstartransactions
-func (api *API) GetStarTransactions(params GetStarTransactionsP) (StarTransactions, error) {
+func (api *API) GetStarTransactions(params GetStarTransactions) (StarTransactions, error) {
 	req := NewRequest[StarTransactions]("getStarTransactions", params)
 	return req.Do(api)
 }
@@ -34,14 +34,14 @@ func (api *API) GetStarTransactions(params GetStarTransactionsP) (StarTransactio
 // GetStarTransactionsWithContext is the context-aware variant of GetStarTransactions.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getstartransactions
-func (api *API) GetStarTransactionsWithContext(ctx context.Context, params GetStarTransactionsP) (StarTransactions, error) {
+func (api *API) GetStarTransactionsWithContext(ctx context.Context, params GetStarTransactions) (StarTransactions, error) {
 	req := NewRequest[StarTransactions]("getStarTransactions", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// RefundStarPaymentP holds parameters for the refundStarPayment method.
+// RefundStarPayment holds parameters for the refundStarPayment method.
 // See https://core.telegram.org/bots/api#refundstarpayment
-type RefundStarPaymentP struct {
+type RefundStarPayment struct {
 	UserID                  int64  `json:"user_id"`
 	TelegramPaymentChargeID string `json:"telegram_payment_charge_id"`
 }
@@ -49,7 +49,7 @@ type RefundStarPaymentP struct {
 // RefundStarPayment refunds a successful Telegram Stars payment.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#refundstarpayment
-func (api *API) RefundStarPayment(params RefundStarPaymentP) (bool, error) {
+func (api *API) RefundStarPayment(params RefundStarPayment) (bool, error) {
 	req := NewRequest[bool]("refundStarPayment", params)
 	return req.Do(api)
 }
@@ -57,14 +57,14 @@ func (api *API) RefundStarPayment(params RefundStarPaymentP) (bool, error) {
 // RefundStarPaymentWithContext is the context-aware variant of RefundStarPayment.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#refundstarpayment
-func (api *API) RefundStarPaymentWithContext(ctx context.Context, params RefundStarPaymentP) (bool, error) {
+func (api *API) RefundStarPaymentWithContext(ctx context.Context, params RefundStarPayment) (bool, error) {
 	req := NewRequest[bool]("refundStarPayment", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// EditUserStarSubscriptionP holds parameters for the editUserStarSubscription method.
+// EditUserStarSubscription holds parameters for the editUserStarSubscription method.
 // See https://core.telegram.org/bots/api#edituserstarsubscription
-type EditUserStarSubscriptionP struct {
+type EditUserStarSubscription struct {
 	UserID                  int64  `json:"user_id"`
 	TelegramPaymentChargeID string `json:"telegram_payment_charge_id"`
 	IsCanceled              bool   `json:"is_canceled"`
@@ -73,7 +73,7 @@ type EditUserStarSubscriptionP struct {
 // EditUserStarSubscription cancels or re-enables a user star subscription extension.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#edituserstarsubscription
-func (api *API) EditUserStarSubscription(params EditUserStarSubscriptionP) (bool, error) {
+func (api *API) EditUserStarSubscription(params EditUserStarSubscription) (bool, error) {
 	req := NewRequest[bool]("editUserStarSubscription", params)
 	return req.Do(api)
 }
@@ -81,7 +81,7 @@ func (api *API) EditUserStarSubscription(params EditUserStarSubscriptionP) (bool
 // EditUserStarSubscriptionWithContext is the context-aware variant of EditUserStarSubscription.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#edituserstarsubscription
-func (api *API) EditUserStarSubscriptionWithContext(ctx context.Context, params EditUserStarSubscriptionP) (bool, error) {
+func (api *API) EditUserStarSubscriptionWithContext(ctx context.Context, params EditUserStarSubscription) (bool, error) {
 	req := NewRequest[bool]("editUserStarSubscription", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/stickers_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// SendStickerP holds parameters for the sendSticker method.
+// SendSticker holds parameters for the sendSticker method.
 // See https://core.telegram.org/bots/api#sendsticker
-type SendStickerP struct {
+type SendSticker struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -24,7 +24,7 @@ type SendStickerP struct {
 
 // SendSticker sends a static .WEBP, animated .TGS, or video .WEBM sticker.
 // See https://core.telegram.org/bots/api#sendsticker
-func (api *API) SendSticker(params SendStickerP) (Message, error) {
+func (api *API) SendSticker(params SendSticker) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendSticker", params, params.ChatID)
 	return req.Do(api)
 }
@@ -32,20 +32,20 @@ func (api *API) SendSticker(params SendStickerP) (Message, error) {
 // SendStickerWithContext is the context-aware variant of SendSticker.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendsticker
-func (api *API) SendStickerWithContext(ctx context.Context, params SendStickerP) (Message, error) {
+func (api *API) SendStickerWithContext(ctx context.Context, params SendSticker) (Message, error) {
 	req := NewRequestWithChatID[Message]("sendSticker", params, params.ChatID)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetStickerSetP holds parameters for the getStickerSet method.
+// GetStickerSet holds parameters for the getStickerSet method.
 // See https://core.telegram.org/bots/api#getstickerset
-type GetStickerSetP struct {
+type GetStickerSet struct {
 	Name string `json:"name"`
 }
 
 // GetStickerSet returns a sticker set by its name.
 // See https://core.telegram.org/bots/api#getstickerset
-func (api *API) GetStickerSet(params GetStickerSetP) (StickerSet, error) {
+func (api *API) GetStickerSet(params GetStickerSet) (StickerSet, error) {
 	req := NewRequest[StickerSet]("getStickerSet", params)
 	return req.Do(api)
 }
@@ -53,20 +53,20 @@ func (api *API) GetStickerSet(params GetStickerSetP) (StickerSet, error) {
 // GetStickerSetWithContext is the context-aware variant of GetStickerSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getstickerset
-func (api *API) GetStickerSetWithContext(ctx context.Context, params GetStickerSetP) (StickerSet, error) {
+func (api *API) GetStickerSetWithContext(ctx context.Context, params GetStickerSet) (StickerSet, error) {
 	req := NewRequest[StickerSet]("getStickerSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetCustomEmojiStickersP holds parameters for the getCustomEmojiStickers method.
+// GetCustomEmojiStickers holds parameters for the getCustomEmojiStickers method.
 // See https://core.telegram.org/bots/api#getcustomemojistickers
-type GetCustomEmojiStickersP struct {
+type GetCustomEmojiStickers struct {
 	CustomEmojiIDs []string `json:"custom_emoji_ids"`
 }
 
 // GetCustomEmojiStickers returns information about custom emoji stickers by their IDs.
 // See https://core.telegram.org/bots/api#getcustomemojistickers
-func (api *API) GetCustomEmojiStickers(params GetCustomEmojiStickersP) ([]Sticker, error) {
+func (api *API) GetCustomEmojiStickers(params GetCustomEmojiStickers) ([]Sticker, error) {
 	req := NewRequest[[]Sticker]("getCustomEmojiStickers", params)
 	return req.Do(api)
 }
@@ -74,14 +74,14 @@ func (api *API) GetCustomEmojiStickers(params GetCustomEmojiStickersP) ([]Sticke
 // GetCustomEmojiStickersWithContext is the context-aware variant of GetCustomEmojiStickers.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getcustomemojistickers
-func (api *API) GetCustomEmojiStickersWithContext(ctx context.Context, params GetCustomEmojiStickersP) ([]Sticker, error) {
+func (api *API) GetCustomEmojiStickersWithContext(ctx context.Context, params GetCustomEmojiStickers) ([]Sticker, error) {
 	req := NewRequest[[]Sticker]("getCustomEmojiStickers", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// UploadStickerFileP holds parameters for the uploadStickerFile method.
+// UploadStickerFile holds parameters for the uploadStickerFile method.
 // See https://core.telegram.org/bots/api#uploadstickerfile
-type UploadStickerFileP struct {
+type UploadStickerFile struct {
 	UserID        int64              `json:"user_id"`
 	StickerFormat InputStickerFormat `json:"sticker_format"`
 }
@@ -89,7 +89,7 @@ type UploadStickerFileP struct {
 // UploadStickerFile uploads a sticker file for later use in sticker set methods.
 // sticker is the file to upload.
 // See https://core.telegram.org/bots/api#uploadstickerfile
-func (api *API) UploadStickerFile(params UploadStickerFileP, sticker UploaderFile) (File, error) {
+func (api *API) UploadStickerFile(params UploadStickerFile, sticker UploaderFile) (File, error) {
 	uploader := NewUploader(api)
 	defer func() {
 		_ = uploader.Close()
@@ -101,7 +101,7 @@ func (api *API) UploadStickerFile(params UploadStickerFileP, sticker UploaderFil
 // UploadStickerFileWithContext is the context-aware variant of UploadStickerFile.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#uploadstickerfile
-func (api *API) UploadStickerFileWithContext(ctx context.Context, params UploadStickerFileP, sticker UploaderFile) (File, error) {
+func (api *API) UploadStickerFileWithContext(ctx context.Context, params UploadStickerFile, sticker UploaderFile) (File, error) {
 	uploader := NewUploader(api)
 	defer func() {
 		_ = uploader.Close()
@@ -110,9 +110,9 @@ func (api *API) UploadStickerFileWithContext(ctx context.Context, params UploadS
 	return req.DoWithContext(ctx, uploader)
 }
 
-// CreateNewStickerSetP holds parameters for the createNewStickerSet method.
+// CreateNewStickerSet holds parameters for the createNewStickerSet method.
 // See https://core.telegram.org/bots/api#createnewstickerset
-type CreateNewStickerSetP struct {
+type CreateNewStickerSet struct {
 	UserID int64  `json:"user_id"`
 	Name   string `json:"name"`
 	Title  string `json:"title"`
@@ -125,7 +125,7 @@ type CreateNewStickerSetP struct {
 // CreateNewStickerSet creates a new sticker set owned by a user.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#createnewstickerset
-func (api *API) CreateNewStickerSet(params CreateNewStickerSetP) (bool, error) {
+func (api *API) CreateNewStickerSet(params CreateNewStickerSet) (bool, error) {
 	req := NewRequest[bool]("createNewStickerSet", params)
 	return req.Do(api)
 }
@@ -133,14 +133,14 @@ func (api *API) CreateNewStickerSet(params CreateNewStickerSetP) (bool, error) {
 // CreateNewStickerSetWithContext is the context-aware variant of CreateNewStickerSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#createnewstickerset
-func (api *API) CreateNewStickerSetWithContext(ctx context.Context, params CreateNewStickerSetP) (bool, error) {
+func (api *API) CreateNewStickerSetWithContext(ctx context.Context, params CreateNewStickerSet) (bool, error) {
 	req := NewRequest[bool]("createNewStickerSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// AddStickerToSetP holds parameters for the addStickerToSet method.
+// AddStickerToSet holds parameters for the addStickerToSet method.
 // See https://core.telegram.org/bots/api#addstickertoset
-type AddStickerToSetP struct {
+type AddStickerToSet struct {
 	UserID  int64        `json:"user_id"`
 	Name    string       `json:"name"`
 	Sticker InputSticker `json:"sticker"`
@@ -149,7 +149,7 @@ type AddStickerToSetP struct {
 // AddStickerToSet adds a new sticker to a set created by the bot.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#addstickertoset
-func (api *API) AddStickerToSet(params AddStickerToSetP) (bool, error) {
+func (api *API) AddStickerToSet(params AddStickerToSet) (bool, error) {
 	req := NewRequest[bool]("addStickerToSet", params)
 	return req.Do(api)
 }
@@ -157,14 +157,14 @@ func (api *API) AddStickerToSet(params AddStickerToSetP) (bool, error) {
 // AddStickerToSetWithContext is the context-aware variant of AddStickerToSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#addstickertoset
-func (api *API) AddStickerToSetWithContext(ctx context.Context, params AddStickerToSetP) (bool, error) {
+func (api *API) AddStickerToSetWithContext(ctx context.Context, params AddStickerToSet) (bool, error) {
 	req := NewRequest[bool]("addStickerToSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerPositionInSetP holds parameters for the setStickerPositionInSet method.
+// SetStickerPositionInSet holds parameters for the setStickerPositionInSet method.
 // See https://core.telegram.org/bots/api#setstickerpositioninset
-type SetStickerPositionInSetP struct {
+type SetStickerPositionInSet struct {
 	Sticker  string `json:"sticker"`
 	Position int    `json:"position"`
 }
@@ -172,7 +172,7 @@ type SetStickerPositionInSetP struct {
 // SetStickerPositionInSet moves a sticker in a set to a specific position.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickerpositioninset
-func (api *API) SetStickerPositionInSet(params SetStickerPositionInSetP) (bool, error) {
+func (api *API) SetStickerPositionInSet(params SetStickerPositionInSet) (bool, error) {
 	req := NewRequest[bool]("setStickerPositionInSet", params)
 	return req.Do(api)
 }
@@ -180,21 +180,21 @@ func (api *API) SetStickerPositionInSet(params SetStickerPositionInSetP) (bool,
 // SetStickerPositionInSetWithContext is the context-aware variant of SetStickerPositionInSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickerpositioninset
-func (api *API) SetStickerPositionInSetWithContext(ctx context.Context, params SetStickerPositionInSetP) (bool, error) {
+func (api *API) SetStickerPositionInSetWithContext(ctx context.Context, params SetStickerPositionInSet) (bool, error) {
 	req := NewRequest[bool]("setStickerPositionInSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteStickerFromSetP holds parameters for the deleteStickerFromSet method.
+// DeleteStickerFromSet holds parameters for the deleteStickerFromSet method.
 // See https://core.telegram.org/bots/api#deletestickerfromset
-type DeleteStickerFromSetP struct {
+type DeleteStickerFromSet struct {
 	Sticker string `json:"sticker"`
 }
 
 // DeleteStickerFromSet deletes a sticker from a set created by the bot.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletestickerfromset
-func (api *API) DeleteStickerFromSet(params DeleteStickerFromSetP) (bool, error) {
+func (api *API) DeleteStickerFromSet(params DeleteStickerFromSet) (bool, error) {
 	req := NewRequest[bool]("deleteStickerFromSet", params)
 	return req.Do(api)
 }
@@ -202,14 +202,14 @@ func (api *API) DeleteStickerFromSet(params DeleteStickerFromSetP) (bool, error)
 // DeleteStickerFromSetWithContext is the context-aware variant of DeleteStickerFromSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletestickerfromset
-func (api *API) DeleteStickerFromSetWithContext(ctx context.Context, params DeleteStickerFromSetP) (bool, error) {
+func (api *API) DeleteStickerFromSetWithContext(ctx context.Context, params DeleteStickerFromSet) (bool, error) {
 	req := NewRequest[bool]("deleteStickerFromSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// ReplaceStickerInSetP holds parameters for the replaceStickerInSet method.
+// ReplaceStickerInSet holds parameters for the replaceStickerInSet method.
 // See https://core.telegram.org/bots/api#replacestickerinset
-type ReplaceStickerInSetP struct {
+type ReplaceStickerInSet struct {
 	UserID     int64        `json:"user_id"`
 	Name       string       `json:"name"`
 	OldSticker string       `json:"old_sticker"`
@@ -219,7 +219,7 @@ type ReplaceStickerInSetP struct {
 // ReplaceStickerInSet replaces an existing sticker in a set with a new one.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#replacestickerinset
-func (api *API) ReplaceStickerInSet(params ReplaceStickerInSetP) (bool, error) {
+func (api *API) ReplaceStickerInSet(params ReplaceStickerInSet) (bool, error) {
 	req := NewRequest[bool]("replaceStickerInSet", params)
 	return req.Do(api)
 }
@@ -227,14 +227,14 @@ func (api *API) ReplaceStickerInSet(params ReplaceStickerInSetP) (bool, error) {
 // ReplaceStickerInSetWithContext is the context-aware variant of ReplaceStickerInSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#replacestickerinset
-func (api *API) ReplaceStickerInSetWithContext(ctx context.Context, params ReplaceStickerInSetP) (bool, error) {
+func (api *API) ReplaceStickerInSetWithContext(ctx context.Context, params ReplaceStickerInSet) (bool, error) {
 	req := NewRequest[bool]("replaceStickerInSet", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerEmojiListP holds parameters for the setStickerEmojiList method.
+// SetStickerEmojiList holds parameters for the setStickerEmojiList method.
 // See https://core.telegram.org/bots/api#setstickeremojilist
-type SetStickerEmojiListP struct {
+type SetStickerEmojiList struct {
 	Sticker   string   `json:"sticker"`
 	EmojiList []string `json:"emoji_list"`
 }
@@ -242,7 +242,7 @@ type SetStickerEmojiListP struct {
 // SetStickerEmojiList changes the list of emoji associated with a sticker.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickeremojilist
-func (api *API) SetStickerEmojiList(params SetStickerEmojiListP) (bool, error) {
+func (api *API) SetStickerEmojiList(params SetStickerEmojiList) (bool, error) {
 	req := NewRequest[bool]("setStickerEmojiList", params)
 	return req.Do(api)
 }
@@ -250,14 +250,14 @@ func (api *API) SetStickerEmojiList(params SetStickerEmojiListP) (bool, error) {
 // SetStickerEmojiListWithContext is the context-aware variant of SetStickerEmojiList.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickeremojilist
-func (api *API) SetStickerEmojiListWithContext(ctx context.Context, params SetStickerEmojiListP) (bool, error) {
+func (api *API) SetStickerEmojiListWithContext(ctx context.Context, params SetStickerEmojiList) (bool, error) {
 	req := NewRequest[bool]("setStickerEmojiList", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerKeywordsP holds parameters for the setStickerKeywords method.
+// SetStickerKeywords holds parameters for the setStickerKeywords method.
 // See https://core.telegram.org/bots/api#setstickerkeywords
-type SetStickerKeywordsP struct {
+type SetStickerKeywords struct {
 	Sticker  string   `json:"sticker"`
 	Keywords []string `json:"keywords"`
 }
@@ -265,7 +265,7 @@ type SetStickerKeywordsP struct {
 // SetStickerKeywords changes the keywords of a sticker.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickerkeywords
-func (api *API) SetStickerKeywords(params SetStickerKeywordsP) (bool, error) {
+func (api *API) SetStickerKeywords(params SetStickerKeywords) (bool, error) {
 	req := NewRequest[bool]("setStickerKeywords", params)
 	return req.Do(api)
 }
@@ -273,14 +273,14 @@ func (api *API) SetStickerKeywords(params SetStickerKeywordsP) (bool, error) {
 // SetStickerKeywordsWithContext is the context-aware variant of SetStickerKeywords.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickerkeywords
-func (api *API) SetStickerKeywordsWithContext(ctx context.Context, params SetStickerKeywordsP) (bool, error) {
+func (api *API) SetStickerKeywordsWithContext(ctx context.Context, params SetStickerKeywords) (bool, error) {
 	req := NewRequest[bool]("setStickerKeywords", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerMaskPositionP holds parameters for the setStickerMaskPosition method.
+// SetStickerMaskPosition holds parameters for the setStickerMaskPosition method.
 // See https://core.telegram.org/bots/api#setstickermaskposition
-type SetStickerMaskPositionP struct {
+type SetStickerMaskPosition struct {
 	Sticker      string        `json:"sticker"`
 	MaskPosition *MaskPosition `json:"mask_position,omitempty"`
 }
@@ -288,7 +288,7 @@ type SetStickerMaskPositionP struct {
 // SetStickerMaskPosition changes the mask position of a mask sticker.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickermaskposition
-func (api *API) SetStickerMaskPosition(params SetStickerMaskPositionP) (bool, error) {
+func (api *API) SetStickerMaskPosition(params SetStickerMaskPosition) (bool, error) {
 	req := NewRequest[bool]("setStickerMaskPosition", params)
 	return req.Do(api)
 }
@@ -296,14 +296,14 @@ func (api *API) SetStickerMaskPosition(params SetStickerMaskPositionP) (bool, er
 // SetStickerMaskPositionWithContext is the context-aware variant of SetStickerMaskPosition.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickermaskposition
-func (api *API) SetStickerMaskPositionWithContext(ctx context.Context, params SetStickerMaskPositionP) (bool, error) {
+func (api *API) SetStickerMaskPositionWithContext(ctx context.Context, params SetStickerMaskPosition) (bool, error) {
 	req := NewRequest[bool]("setStickerMaskPosition", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerSetTitleP holds parameters for the setStickerSetTitle method.
+// SetStickerSetTitle holds parameters for the setStickerSetTitle method.
 // See https://core.telegram.org/bots/api#setstickersettitle
-type SetStickerSetTitleP struct {
+type SetStickerSetTitle struct {
 	Name  string `json:"name"`
 	Title string `json:"title"`
 }
@@ -311,7 +311,7 @@ type SetStickerSetTitleP struct {
 // SetStickerSetTitle sets the title of a sticker set created by the bot.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickersettitle
-func (api *API) SetStickerSetTitle(params SetStickerSetTitleP) (bool, error) {
+func (api *API) SetStickerSetTitle(params SetStickerSetTitle) (bool, error) {
 	req := NewRequest[bool]("setStickerSetTitle", params)
 	return req.Do(api)
 }
@@ -319,14 +319,14 @@ func (api *API) SetStickerSetTitle(params SetStickerSetTitleP) (bool, error) {
 // SetStickerSetTitleWithContext is the context-aware variant of SetStickerSetTitle.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickersettitle
-func (api *API) SetStickerSetTitleWithContext(ctx context.Context, params SetStickerSetTitleP) (bool, error) {
+func (api *API) SetStickerSetTitleWithContext(ctx context.Context, params SetStickerSetTitle) (bool, error) {
 	req := NewRequest[bool]("setStickerSetTitle", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetStickerSetThumbnailP holds parameters for the setStickerSetThumbnail method.
+// SetStickerSetThumbnail holds parameters for the setStickerSetThumbnail method.
 // See https://core.telegram.org/bots/api#setstickersetthumbnail
-type SetStickerSetThumbnailP struct {
+type SetStickerSetThumbnail struct {
 	Name      string             `json:"name"`
 	UserID    int64              `json:"user_id"`
 	Thumbnail string             `json:"thumbnail"`
@@ -336,7 +336,7 @@ type SetStickerSetThumbnailP struct {
 // SetStickerSetThumbnail sets the thumbnail of a sticker set.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setstickersetthumbnail
-func (api *API) SetStickerSetThumbnail(params SetStickerSetThumbnailP) (bool, error) {
+func (api *API) SetStickerSetThumbnail(params SetStickerSetThumbnail) (bool, error) {
 	req := NewRequest[bool]("setStickerSetThumbnail", params)
 	return req.Do(api)
 }
@@ -344,14 +344,14 @@ func (api *API) SetStickerSetThumbnail(params SetStickerSetThumbnailP) (bool, er
 // SetStickerSetThumbnailWithContext is the context-aware variant of SetStickerSetThumbnail.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setstickersetthumbnail
-func (api *API) SetStickerSetThumbnailWithContext(ctx context.Context, params SetStickerSetThumbnailP) (bool, error) {
+func (api *API) SetStickerSetThumbnailWithContext(ctx context.Context, params SetStickerSetThumbnail) (bool, error) {
 	req := NewRequest[bool]("setStickerSetThumbnail", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetCustomEmojiStickerSetThumbnailP holds parameters for the setCustomEmojiStickerSetThumbnail method.
+// SetCustomEmojiStickerSetThumbnail holds parameters for the setCustomEmojiStickerSetThumbnail method.
 // See https://core.telegram.org/bots/api#setcustomemojistickersetthumbnail
-type SetCustomEmojiStickerSetThumbnailP struct {
+type SetCustomEmojiStickerSetThumbnail struct {
 	Name          string `json:"name"`
 	CustomEmojiID string `json:"custom_emoji_id,omitempty"`
 }
@@ -359,7 +359,7 @@ type SetCustomEmojiStickerSetThumbnailP struct {
 // SetCustomEmojiStickerSetThumbnail sets the thumbnail of a custom emoji sticker set.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#setcustomemojistickersetthumbnail
-func (api *API) SetCustomEmojiStickerSetThumbnail(params SetCustomEmojiStickerSetThumbnailP) (bool, error) {
+func (api *API) SetCustomEmojiStickerSetThumbnail(params SetCustomEmojiStickerSetThumbnail) (bool, error) {
 	req := NewRequest[bool]("setCustomEmojiStickerSetThumbnail", params)
 	return req.Do(api)
 }
@@ -367,21 +367,21 @@ func (api *API) SetCustomEmojiStickerSetThumbnail(params SetCustomEmojiStickerSe
 // SetCustomEmojiStickerSetThumbnailWithContext is the context-aware variant of SetCustomEmojiStickerSetThumbnail.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setcustomemojistickersetthumbnail
-func (api *API) SetCustomEmojiStickerSetThumbnailWithContext(ctx context.Context, params SetCustomEmojiStickerSetThumbnailP) (bool, error) {
+func (api *API) SetCustomEmojiStickerSetThumbnailWithContext(ctx context.Context, params SetCustomEmojiStickerSetThumbnail) (bool, error) {
 	req := NewRequest[bool]("setCustomEmojiStickerSetThumbnail", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// DeleteStickerSetP holds parameters for the deleteStickerSet method.
+// DeleteStickerSet holds parameters for the deleteStickerSet method.
 // See https://core.telegram.org/bots/api#deletestickerset
-type DeleteStickerSetP struct {
+type DeleteStickerSet struct {
 	Name string `json:"name"`
 }
 
 // DeleteStickerSet deletes a sticker set created by the bot.
 // Returns True on success.
 // See https://core.telegram.org/bots/api#deletestickerset
-func (api *API) DeleteStickerSet(params DeleteStickerSetP) (bool, error) {
+func (api *API) DeleteStickerSet(params DeleteStickerSet) (bool, error) {
 	req := NewRequest[bool]("deleteStickerSet", params)
 	return req.Do(api)
 }
@@ -389,7 +389,7 @@ func (api *API) DeleteStickerSet(params DeleteStickerSetP) (bool, error) {
 // DeleteStickerSetWithContext is the context-aware variant of DeleteStickerSet.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#deletestickerset
-func (api *API) DeleteStickerSetWithContext(ctx context.Context, params DeleteStickerSetP) (bool, error) {
+func (api *API) DeleteStickerSetWithContext(ctx context.Context, params DeleteStickerSet) (bool, error) {
 	req := NewRequest[bool]("deleteStickerSet", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/stickers_types.go

@@ -38,8 +38,8 @@ const (
 // Sticker represents a sticker.
 // See https://core.telegram.org/bots/api#sticker
 type Sticker struct {
-	FileId       string      `json:"file_id"`
-	FileUniqueId string      `json:"file_unique_id"`
+	FileID       string      `json:"file_id"`
+	FileUniqueID string      `json:"file_unique_id"`
 	Type         StickerType `json:"type"`
 	Width        int         `json:"width"`
 	Height       int         `json:"height"`

tgapi/types.go

@@ -6,6 +6,9 @@ import "encoding/json"
 type UpdateType string
 
 const (
+	// UpdateTypeUnknown marks an update whose payload does not match a known Telegram update kind.
+	UpdateTypeUnknown UpdateType = "unknown"
+
 	// UpdateTypeMessage is a regular message update.
 	UpdateTypeMessage UpdateType = "message"
 	// UpdateTypeEditedMessage is an edited message update.
@@ -27,8 +30,6 @@ const (
 	UpdateTypeEditedBusinessMessage UpdateType = "edited_business_message"
 	// UpdateTypeDeletedBusinessMessages is a deleted business messages update.
 	UpdateTypeDeletedBusinessMessages UpdateType = "deleted_business_messages"
-	// UpdateTypeDeletedBusinessMessage is kept as a backward-compatible alias.
-	UpdateTypeDeletedBusinessMessage UpdateType = UpdateTypeDeletedBusinessMessages
 
 	// UpdateTypeInlineQuery is an inline query update.
 	UpdateTypeInlineQuery UpdateType = "inline_query"
@@ -56,11 +57,15 @@ const (
 	UpdateTypeChatBoost UpdateType = "chat_boost"
 	// UpdateTypeRemovedChatBoost is a removed chat boost update.
 	UpdateTypeRemovedChatBoost UpdateType = "removed_chat_boost"
+
+	UpdateTypeManagedBot UpdateType = "managed_bot"
 )
 
 // Update represents an incoming update from Telegram.
 // See https://core.telegram.org/bots/api#update
 type Update struct {
+	Type UpdateType `json:"-"`
+
 	UpdateID          int      `json:"update_id"`
 	Message           *Message `json:"message,omitempty"`
 	EditedMessage     *Message `json:"edited_message,omitempty"`
@@ -71,7 +76,6 @@ type Update struct {
 	BusinessMessage         *Message                     `json:"business_message,omitempty"`
 	EditedBusinessMessage   *Message                     `json:"edited_business_message,omitempty"`
 	DeletedBusinessMessages *BusinessMessagesDeleted     `json:"deleted_business_messages,omitempty"`
-	DeletedBusinessMessage  *BusinessMessagesDeleted     `json:"-"`
 	MessageReaction         *MessageReactionUpdated      `json:"message_reaction,omitempty"`
 	MessageReactionCount    *MessageReactionCountUpdated `json:"message_reaction_count,omitempty"`
 
@@ -89,35 +93,98 @@ type Update struct {
 	ChatJoinRequest  *ChatJoinRequest   `json:"chat_join_request,omitempty"`
 	ChatBoost        *ChatBoostUpdated  `json:"chat_boost,omitempty"`
 	RemovedChatBoost *ChatBoostRemoved  `json:"removed_chat_boost,omitempty"`
+
+	ManagedBot *ManagedBotUpdated `json:"managed_bot,omitempty"`
 }
 
-func (u *Update) syncDeletedBusinessMessages() {
-	if u.DeletedBusinessMessages != nil {
-		u.DeletedBusinessMessage = u.DeletedBusinessMessages
-		return
-	}
-	if u.DeletedBusinessMessage != nil {
-		u.DeletedBusinessMessages = u.DeletedBusinessMessage
-	}
-}
-
-// UnmarshalJSON keeps the deprecated DeletedBusinessMessage alias in sync.
+// UnmarshalJSON decodes an update and derives its Type from the populated payload field.
 func (u *Update) UnmarshalJSON(data []byte) error {
-	type alias Update
-	var aux alias
+	type Alias Update
+
+	var aux Alias
 	if err := json.Unmarshal(data, &aux); err != nil {
 		return err
 	}
+
 	*u = Update(aux)
-	u.syncDeletedBusinessMessages()
+
+	switch {
+	case u.Message != nil:
+		u.Type = UpdateTypeMessage
+	case u.EditedMessage != nil:
+		u.Type = UpdateTypeEditedMessage
+	case u.ChannelPost != nil:
+		u.Type = UpdateTypeChannelPost
+	case u.EditedChannelPost != nil:
+		u.Type = UpdateTypeEditedChannelPost
+
+	case u.BusinessConnection != nil:
+		u.Type = UpdateTypeBusinessConnection
+	case u.BusinessMessage != nil:
+		u.Type = UpdateTypeBusinessMessage
+	case u.EditedBusinessMessage != nil:
+		u.Type = UpdateTypeEditedBusinessMessage
+	case u.DeletedBusinessMessages != nil:
+		u.Type = UpdateTypeDeletedBusinessMessages
+	case u.MessageReaction != nil:
+		u.Type = UpdateTypeMessageReaction
+	case u.MessageReactionCount != nil:
+		u.Type = UpdateTypeMessageReactionCount
+
+	case u.InlineQuery != nil:
+		u.Type = UpdateTypeInlineQuery
+	case u.ChosenInlineResult != nil:
+		u.Type = UpdateTypeChosenInlineResult
+	case u.CallbackQuery != nil:
+		u.Type = UpdateTypeCallbackQuery
+	case u.ShippingQuery != nil:
+		u.Type = UpdateTypeShippingQuery
+	case u.PreCheckoutQuery != nil:
+		u.Type = UpdateTypePreCheckoutQuery
+	case u.PurchasedPaidMedia != nil:
+		u.Type = UpdateTypePurchasedPaidMedia
+
+	case u.Poll != nil:
+		u.Type = UpdateTypePoll
+	case u.PollAnswer != nil:
+		u.Type = UpdateTypePollAnswer
+	case u.MyChatMember != nil:
+		u.Type = UpdateTypeMyChatMember
+	case u.ChatMember != nil:
+		u.Type = UpdateTypeChatMember
+	case u.ChatJoinRequest != nil:
+		u.Type = UpdateTypeChatJoinRequest
+	case u.ChatBoost != nil:
+		u.Type = UpdateTypeChatBoost
+	case u.RemovedChatBoost != nil:
+		u.Type = UpdateTypeRemovedChatBoost
+	case u.ManagedBot != nil:
+		u.Type = UpdateTypeManagedBot
+	default:
+		u.Type = UpdateTypeUnknown
+	}
+
 	return nil
 }
 
-// MarshalJSON emits the canonical deleted_business_messages field.
-func (u Update) MarshalJSON() ([]byte, error) {
-	u.syncDeletedBusinessMessages()
-	type alias Update
-	return json.Marshal(alias(u))
+// WebhookInfo describes the current webhook status.
+// See https://core.telegram.org/bots/api#webhookinfo
+type WebhookInfo struct {
+	URL                          string   `json:"url"`
+	HasCustomCertificate         bool     `json:"has_custom_certificate"`
+	PendingUpdateCount           int      `json:"pending_update_count"`
+	IPAddress                    string   `json:"ip_address,omitempty"`
+	LastErrorDate                int      `json:"last_error_date,omitempty"`
+	LastErrorMessage             string   `json:"last_error_message,omitempty"`
+	LastSynchronizationErrorDate int      `json:"last_synchronization_error_date,omitempty"`
+	MaxConnections               int      `json:"max_connections,omitempty"`
+	AllowedUpdates               []string `json:"allowed_updates,omitempty"`
+}
+
+type ProximityAlertTriggered struct {
+	Traveler User `json:"traveler"`
+	Watcher  User `json:"watcher"`
+	Distance int  `json:"distance"`
 }
 
 // InlineQuery represents an incoming inline query.
@@ -141,115 +208,15 @@ type ChosenInlineResult struct {
 	Query           string    `json:"query"`
 }
 
-// ShippingQuery represents an incoming shipping query.
-// See https://core.telegram.org/bots/api#shippingquery
-type ShippingQuery struct {
-	ID              string          `json:"id"`
-	From            User            `json:"from"`
-	InvoicePayload  string          `json:"invoice_payload"`
-	ShippingAddress ShippingAddress `json:"shipping_address"`
-}
-
-// ShippingAddress represents a shipping address.
-// See https://core.telegram.org/bots/api#shippingaddress
-type ShippingAddress struct {
-	CountryCode string `json:"country_code"`
-	State       string `json:"state"`
-	City        string `json:"city"`
-	StreetLine1 string `json:"street_line1"`
-	StreetLine2 string `json:"street_line2"`
-	PostCode    string `json:"post_code"`
-}
-
-// OrderInfo represents information about an order.
-// See https://core.telegram.org/bots/api#orderinfo
-type OrderInfo struct {
-	Name            string          `json:"name"`
-	PhoneNumber     string          `json:"phone_number"`
-	Email           string          `json:"email"`
-	ShippingAddress ShippingAddress `json:"shipping_address"`
-}
-
-// PreCheckoutQuery represents an incoming pre-checkout query.
-// See https://core.telegram.org/bots/api#precheckoutquery
-type PreCheckoutQuery struct {
-	ID               string     `json:"id"`
-	From             User       `json:"from"`
-	Currency         string     `json:"currency"`
-	TotalAmount      int        `json:"total_amount"`
-	InvoicePayload   string     `json:"invoice_payload"`
-	ShippingOptionID string     `json:"shipping_option_id"`
-	OrderInfo        *OrderInfo `json:"order_info,omitempty"`
-}
-
-// PaidMediaPurchased represents a purchased paid media.
-// See https://core.telegram.org/bots/api#paidmediapurchased
-type PaidMediaPurchased struct {
-	From             User   `json:"from"`
-	PaidMediaPayload string `json:"paid_media_payload"`
-}
-
 // File represents a file ready to be downloaded.
 // See https://core.telegram.org/bots/api#file
 type File struct {
-	FileId       string `json:"file_id"`
+	FileID       string `json:"file_id"`
 	FileUniqueID string `json:"file_unique_id"`
 	FileSize     int64  `json:"file_size,omitempty"`
 	FilePath     string `json:"file_path,omitempty"`
 }
 
-// Audio represents an audio file to be treated as music by the Telegram clients.
-// See https://core.telegram.org/bots/api#audio
-type Audio struct {
-	FileID       string `json:"file_id"`
-	FileUniqueID string `json:"file_unique_id"`
-	Duration     int    `json:"duration"`
-
-	Performer string     `json:"performer,omitempty"`
-	Title     string     `json:"title,omitempty"`
-	FileName  string     `json:"file_name,omitempty"`
-	MimeType  string     `json:"mime_type,omitempty"`
-	FileSize  int64      `json:"file_size,omitempty"`
-	Thumbnail *PhotoSize `json:"thumbnail,omitempty"`
-}
-
-// PollOption contains information about one answer option in a poll.
-// See https://core.telegram.org/bots/api#polloption
-type PollOption struct {
-	Text         string          `json:"text"`
-	TextEntities []MessageEntity `json:"text_entities"`
-	VoterCount   int             `json:"voter_count"`
-}
-
-// Poll contains information about a poll.
-// See https://core.telegram.org/bots/api#poll
-type Poll struct {
-	ID               string          `json:"id"`
-	Question         string          `json:"question"`
-	QuestionEntities []MessageEntity `json:"question_entities"`
-	Options          []PollOption    `json:"options"`
-	TotalVoterCount  int             `json:"total_voter_count"`
-	IsClosed         bool            `json:"is_closed"`
-	IsAnonymous      bool            `json:"is_anonymous"`
-	Type             PollType        `json:"type"`
-
-	AllowsMultipleAnswers bool            `json:"allows_multiple_answers"`
-	CorrectOptionID       *int            `json:"correct_option_id,omitempty"`
-	Explanation           *string         `json:"explanation,omitempty"`
-	ExplanationEntities   []MessageEntity `json:"explanation_entities,omitempty"`
-	OpenPeriod            int             `json:"open_period,omitempty"`
-	CloseDate             int             `json:"close_date,omitempty"`
-}
-
-// PollAnswer represents an answer of a user in a poll.
-// See https://core.telegram.org/bots/api#pollanswer
-type PollAnswer struct {
-	PollID    string `json:"poll_id"`
-	VoterChat Chat   `json:"voter_chat"`
-	User      User   `json:"user"`
-	OptionIDS []int  `json:"option_ids"`
-}
-
 // ChatMemberUpdated represents changes in the status of a chat member.
 // See https://core.telegram.org/bots/api#chatmemberupdated
 type ChatMemberUpdated struct {
@@ -311,18 +278,17 @@ type WebAppInfo struct {
 	URL string `json:"url"`
 }
 
+type WebAppData struct {
+	Data       string `json:"data"`
+	ButtonText string `json:"button_text"`
+}
+
 // StarAmount represents an amount of Telegram Stars.
 type StarAmount struct {
 	Amount         int `json:"amount"`
 	NanostarAmount int `json:"nanostar_amount"`
 }
 
-// Story represents a story.
-type Story struct {
-	Chat Chat `json:"chat"`
-	ID   int  `json:"id"`
-}
-
 // AcceptedGiftTypes represents the types of gifts accepted by a user or chat.
 type AcceptedGiftTypes struct {
 	UnlimitedGifts      bool `json:"unlimited_gifts"`
@@ -332,6 +298,58 @@ type AcceptedGiftTypes struct {
 	GiftsFromChannels   bool `json:"gifts_from_channels"`
 }
 
+// GiftBackground represents the background of a gift.
+type GiftBackground struct {
+	CenterColor int `json:"center_color"`
+	EdgeColor   int `json:"edge_color"`
+	TextColor   int `json:"text_color"`
+}
+
+// Gift represents a gift that can be sent.
+type Gift struct {
+	ID                     string          `json:"id"`
+	Sticker                Sticker         `json:"sticker"`
+	StarCount              int             `json:"star_count"`
+	UpdateStarCount        *int            `json:"update_star_count,omitempty"`
+	IsPremium              *bool           `json:"is_premium,omitempty"`
+	HasColors              *bool           `json:"has_colors,omitempty"`
+	TotalCount             *int            `json:"total_count,omitempty"`
+	RemainingCount         *int            `json:"remaining_count,omitempty"`
+	PersonalTotalCount     *int            `json:"personal_total_count,omitempty"`
+	PersonalRemainingCount *int            `json:"personal_remaining_count,omitempty"`
+	Background             *GiftBackground `json:"background,omitempty"`
+	UniqueGiftVariantColor *int            `json:"unique_gift_variant_color,omitempty"`
+	PublisherChat          *Chat           `json:"publisher_chat,omitempty"`
+}
+
+// Gifts represents a list of gifts.
+type Gifts struct {
+	Gifts []Gift `json:"gifts"`
+}
+
+type UniqueGiftModel struct {
+	Name           string  `json:"name"`
+	Sticker        Sticker `json:"sticker"`
+	RarityPerMille int     `json:"rarity_per_mille"`
+	Rarity         string  `json:"rarity,omitempty"`
+}
+type UniqueGiftSymbol struct {
+	Name           string  `json:"name"`
+	Sticker        Sticker `json:"sticker"`
+	RarityPerMille int     `json:"rarity_per_mille"`
+}
+type UniqueGiftBackdropColors struct {
+	CenterColor int `json:"center_color"`
+	EdgeColor   int `json:"edge_color"`
+	SymbolColor int `json:"symbol_color"`
+	TextColor   int `json:"text_color"`
+}
+type UniqueGiftBackdrop struct {
+	Name           string                   `json:"name"`
+	Colors         UniqueGiftBackdropColors `json:"colors"`
+	RarityPerMille int                      `json:"rarity_per_mille"`
+}
+
 // UniqueGiftColors represents color information for a unique gift.
 type UniqueGiftColors struct {
 	ModelCustomEmojiID    string `json:"model_custom_emoji_id"`
@@ -342,67 +360,79 @@ type UniqueGiftColors struct {
 	DarkThemeOtherColors  []int  `json:"dark_theme_other_colors"`
 }
 
-// GiftBackground represents the background of a gift.
-type GiftBackground struct {
-	CenterColor int `json:"center_color"`
-	EdgeColor   int `json:"edge_color"`
-	TextColor   int `json:"text_color"`
+type UniqueGift struct {
+	GiftID   string             `json:"gift_id"`
+	BaseName string             `json:"base_name"`
+	Name     string             `json:"name"`
+	Number   int                `json:"number"`
+	Model    UniqueGiftModel    `json:"model"`
+	Symbol   UniqueGiftSymbol   `json:"symbol"`
+	Backdrop UniqueGiftBackdrop `json:"backdrop"`
+
+	IsPremium        bool              `json:"is_premium,omitempty"`
+	IsBurned         bool              `json:"is_burned,omitempty"`
+	IsFromBlockchain bool              `json:"is_from_blockchain,omitempty"`
+	Colors           *UniqueGiftColors `json:"colors,omitempty"`
+	PublisherChat    *Chat             `json:"publisher_chat,omitempty"`
 }
 
-// Gift represents a gift that can be sent.
-type Gift struct {
-	ID                     string         `json:"id"`
-	Sticker                Sticker        `json:"sticker"`
-	StarCount              int            `json:"star_count"`
-	UpdateStarCount        *int           `json:"update_star_count,omitempty"`
-	IsPremium              *bool          `json:"is_premium,omitempty"`
-	HasColors              *bool          `json:"has_colors,omitempty"`
-	TotalCount             *int           `json:"total_count,omitempty"`
-	RemainingCount         *int           `json:"remaining_count,omitempty"`
-	PersonalTotalCount     *int           `json:"personal_total_count,omitempty"`
-	PersonalRemainingCount *int           `json:"personal_remaining_count,omitempty"`
-	Background             GiftBackground `json:"background,omitempty"`
-	UniqueGiftVariantColor *int           `json:"unique_gift_variant_color,omitempty"`
-	PublisherChat          *Chat          `json:"publisher_chat,omitempty"`
-}
+type GiftInfo struct {
+	Gift Gift `json:"gift"`
 
-// Gifts represents a list of gifts.
-type Gifts struct {
-	Gifts []Gift `json:"gifts"`
+	OwnedGiftID             string          `json:"owned_gift_id,omitempty"`
+	ConvertStarCount        int             `json:"convert_star_count,omitempty"`
+	PrepaidUpgradeStarCount int             `json:"prepaid_upgrade_star_count,omitempty"`
+	IsUpgradeSeparate       bool            `json:"is_upgrade_separate,omitempty"`
+	CanBeUpgraded           bool            `json:"can_be_upgraded,omitempty"`
+	Text                    string          `json:"text,omitempty"`
+	Entities                []MessageEntity `json:"entities,omitempty"`
+	IsPrivate               bool            `json:"is_private,omitempty"`
+	UniqueGiftNumber        int             `json:"unique_gift_number,omitempty"`
+}
+type UniqueGiftInfo struct {
+	Gift               UniqueGift `json:"gift"`
+	Origin             string     `json:"origin"`
+	LastResaleCurrency string     `json:"last_resale_currency,omitempty"`
+	LastResaleAmount   int        `json:"last_resale_amount,omitempty"`
+	OwnedGiftID        string     `json:"owned_gift_id,omitempty"`
+	TransferStarCount  int        `json:"transfer_star_count,omitempty"`
+	NextTransferDate   int        `json:"next_transfer_date,omitempty"`
 }
 
 // OwnedGiftType represents the type of an owned gift.
 type OwnedGiftType string
 
 const (
+	// OwnedGiftRegularType identifies a regular owned gift.
 	OwnedGiftRegularType OwnedGiftType = "regular"
-	OwnedGiftUniqueType  OwnedGiftType = "unique"
+	// OwnedGiftUniqueType identifies a unique owned gift.
+	OwnedGiftUniqueType OwnedGiftType = "unique"
 )
 
 // OwnedGift represents a gift owned by a user or chat.
 type OwnedGift struct {
 	Type        OwnedGiftType `json:"type"`
-	OwnerGiftID *string       `json:"owner_gift_id,omitempty"`
-	SendDate    *int          `json:"send_date,omitempty"`
-	IsSaved     *bool         `json:"is_saved,omitempty"`
+	OwnedGiftID string        `json:"ownen_gift_id,omitempty"`
+	SendDate    int           `json:"send_date,omitempty"`
+	IsSaved     bool          `json:"is_saved,omitempty"`
 
 	// Fields specific to "regular" type
 	Gift                    Gift            `json:"gift"`
-	SenderUser              User            `json:"sender_user,omitempty"`
+	SenderUser              *User           `json:"sender_user,omitempty"`
 	Text                    string          `json:"text,omitempty"`
 	Entities                []MessageEntity `json:"entities,omitempty"`
-	IsPrivate               *bool           `json:"is_private,omitempty"`
-	CanBeUpgraded           *bool           `json:"can_be_upgraded,omitempty"`
-	WasRefunded             *bool           `json:"was_refunded,omitempty"`
-	ConvertStarCount        *int            `json:"convert_star_count,omitempty"`
-	PrepaidUpgradeStarCount *int            `json:"prepaid_upgrade_star_count,omitempty"`
-	IsUpgradeSeparate       *bool           `json:"is_upgrade_separate,omitempty"`
-	UniqueGiftNumber        *int            `json:"unique_gift_number,omitempty"`
+	IsPrivate               bool            `json:"is_private,omitempty"`
+	CanBeUpgraded           bool            `json:"can_be_upgraded,omitempty"`
+	WasRefunded             bool            `json:"was_refunded,omitempty"`
+	ConvertStarCount        int             `json:"convert_star_count,omitempty"`
+	PrepaidUpgradeStarCount int             `json:"prepaid_upgrade_star_count,omitempty"`
+	IsUpgradeSeparate       bool            `json:"is_upgrade_separate,omitempty"`
+	UniqueGiftNumber        int             `json:"unique_gift_number,omitempty"`
 
 	// Fields specific to "unique" type
-	CanBeTransferred  *bool `json:"can_be_transferred,omitempty"`
-	TransferStarCount *int  `json:"transfer_star_count,omitempty"`
-	NextTransferDate  *int  `json:"next_transfer_date,omitempty"`
+	CanBeTransferred  bool `json:"can_be_transferred,omitempty"`
+	TransferStarCount int  `json:"transfer_star_count,omitempty"`
+	NextTransferDate  int  `json:"next_transfer_date,omitempty"`
 }
 
 // OwnedGifts represents a list of owned gifts with pagination.
@@ -411,3 +441,94 @@ type OwnedGifts struct {
 	Gifts      []OwnedGift `json:"gifts"`
 	NextOffset string      `json:"next_offset"`
 }
+
+type GiveawayCreated struct {
+	PrizeStarCount int `json:"prize_star_count,omitempty"`
+}
+
+type Giveaway struct {
+	Chats                []Chat `json:"chats"`
+	WinnersSelectionDate int    `json:"winners_selection_date"`
+	WinnerCount          int    `json:"winner_count"`
+
+	OnlyNewMembers                bool     `json:"only_new_members,omitempty"`
+	HasPublicWinners              bool     `json:"has_public_winners,omitempty"`
+	PrizeDescription              string   `json:"prize_description,omitempty"`
+	CountryCodes                  []string `json:"country_codes,omitempty"`
+	PrizeStarCount                int      `json:"prize_star_count,omitempty"`
+	PremiumSubscriptionMonthCount int      `json:"premium_subscription_month_count,omitempty"`
+}
+
+type GiveawayWinners struct {
+	Chat                 Chat   `json:"chat"`
+	GiveawayMessageID    int    `json:"giveaway_message_id"`
+	WinnersSelectionDate int    `json:"winners_selection_date"`
+	WinnerCount          int    `json:"winner_count"`
+	Winners              []User `json:"winners"`
+
+	AdditionalChatCount           int    `json:"additional_chat_count,omitempty"`
+	PrizeStarCount                int    `json:"prize_star_count,omitempty"`
+	PremiumSubscriptionMonthCount int    `json:"premium_subscription_month_count,omitempty"`
+	UnclaimedPrizeCount           int    `json:"unclaimed_prize_count,omitempty"`
+	OnlyNewMembers                bool   `json:"only_new_members,omitempty"`
+	WasRefunded                   bool   `json:"was_refunded,omitempty"`
+	PrizeDescription              string `json:"prize_description,omitempty"`
+}
+
+type GiveawayCompleted struct {
+	WinnerCount         int      `json:"winner_count"`
+	UnclaimedPrizeCount int      `json:"unclaimed_prize_count,omitempty"`
+	GiveawayMessage     *Message `json:"giveaway_message,omitempty"`
+	IsStarGiveaway      bool     `json:"is_star_giveaway,omitempty"`
+}
+
+type WriteAccessAllowed struct {
+	FromRequest        bool   `json:"from_request,omitempty"`
+	WebAppName         string `json:"web_app_name,omitempty"`
+	FromAttachmentMenu bool   `json:"from_attachment_menu,omitempty"`
+}
+
+type BackgroundFillType string
+
+const (
+	BackgroundFillSolidType            BackgroundFillType = "solid"
+	BackgroundFillGradientType         BackgroundFillType = "gradient"
+	BackgroundFillFreeformGradientType BackgroundFillType = "freeform_gradient"
+)
+
+type BackgroundFill struct {
+	Type BackgroundFillType `json:"type"`
+
+	Color int `json:"color,omitempty"`
+
+	TopColor      int `json:"top_color,omitempty"`
+	BottomColor   int `json:"bottom_color,omitempty"`
+	RotationAngle int `json:"rotation_angle,omitempty"`
+
+	Colors []int `json:"colors,omitempty"`
+}
+
+type BackgroundTypeType string
+
+const (
+	BackgroundTypeFillType      BackgroundTypeType = "fill"
+	BackgroundTypeWallpaperType BackgroundTypeType = "wallpaper"
+	BackgroundTypePatternType   BackgroundTypeType = "pattern"
+	BackgroundTypeChatThemeType BackgroundTypeType = "chat_theme"
+)
+
+type BackgroundType struct {
+	Type BackgroundTypeType `json:"type"`
+
+	Fill             *BackgroundFill `json:"fill,omitempty"`
+	DarkThemeDimming int             `json:"dark_theme_dimming,omitempty"`
+
+	Document  *Document `json:"document,omitempty"`
+	IsBlurred bool      `json:"is_blurred,omitempty"`
+	IsMoving  bool      `json:"is_moving,omitempty"`
+
+	Intensity  int  `json:"intensity,omitempty"`
+	IsInverted bool `json:"is_inverted,omitempty"`
+
+	ThemeName string `json:"theme_name,omitempty"`
+}

tgapi/types_test.go

@@ -6,41 +6,130 @@ import (
 	"testing"
 )
 
-func TestUpdateDeletedBusinessMessagesUnmarshalSetsAlias(t *testing.T) {
-	var update Update
-	err := json.Unmarshal([]byte(`{
-		"update_id": 1,
-		"deleted_business_messages": {
-			"business_connection_id": "conn",
-			"chat": {"id": 42, "type": "private"},
-			"message_ids": [3, 5]
-		}
-	}`), &update)
-	if err != nil {
-		t.Fatalf("Unmarshal returned error: %v", err)
+func TestUpdateUnmarshalSetsType(t *testing.T) {
+	tests := []struct {
+		name string
+		body string
+		want UpdateType
+	}{
+		{
+			name: "deleted business messages",
+			body: `{
+				"update_id": 1,
+				"deleted_business_messages": {
+					"business_connection_id": "conn",
+					"chat": {"id": 42, "type": "private"},
+					"message_ids": [3, 5]
+				}
+			}`,
+			want: UpdateTypeDeletedBusinessMessages,
+		},
+		{
+			name: "callback query",
+			body: `{
+				"update_id": 2,
+				"callback_query": {
+					"id": "cb",
+					"from": {"id": 1, "is_bot": false, "first_name": "Test"},
+					"chat_instance": "instance",
+					"data": "payload"
+				}
+			}`,
+			want: UpdateTypeCallbackQuery,
+		},
+		{
+			name: "chat boost",
+			body: `{
+				"update_id": 3,
+				"chat_boost": {
+					"chat": {"id": -1001, "type": "supergroup", "title": "Boosted"},
+					"boost": {
+						"boost_id": "boost-1",
+						"add_date": 1735689600,
+						"expiration_date": 1738291600,
+						"source": {
+							"source": "premium",
+							"user": {"id": 1, "is_bot": false, "first_name": "Test"}
+						}
+					}
+				}
+			}`,
+			want: UpdateTypeChatBoost,
+		},
+		{
+			name: "unknown",
+			body: `{"update_id":4}`,
+			want: UpdateTypeUnknown,
+		},
+		{
+			name: "managed bot",
+			body: `{
+				"update_id": 5,
+				"managed_bot": {
+					"user": {"id": 11, "is_bot": false, "first_name": "Manager"},
+					"bot": {"id": 12, "is_bot": true, "first_name": "Worker"}
+				}
+			}`,
+			want: UpdateTypeManagedBot,
+		},
 	}
 
-	if update.DeletedBusinessMessages == nil {
-		t.Fatal("expected DeletedBusinessMessages to be populated")
-	}
-	if update.DeletedBusinessMessage == nil {
-		t.Fatal("expected deprecated DeletedBusinessMessage alias to be populated")
-	}
-	if update.DeletedBusinessMessages != update.DeletedBusinessMessage {
-		t.Fatal("expected deleted business message fields to share the same payload")
-	}
-	if got := update.DeletedBusinessMessages.MessageIDs; len(got) != 2 || got[0] != 3 || got[1] != 5 {
-		t.Fatalf("unexpected message ids: %v", got)
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var update Update
+			if err := json.Unmarshal([]byte(tt.body), &update); err != nil {
+				t.Fatalf("Unmarshal returned error: %v", err)
+			}
+			if update.Type != tt.want {
+				t.Fatalf("unexpected update type: got %q want %q", update.Type, tt.want)
+			}
+			if tt.want == UpdateTypeChatBoost && update.ChatBoost.Boost.BoostID != "boost-1" {
+				t.Fatalf("unexpected boost id: got %q want %q", update.ChatBoost.Boost.BoostID, "boost-1")
+			}
+			if tt.want == UpdateTypeManagedBot && update.ManagedBot.Bot.ID != 12 {
+				t.Fatalf("unexpected managed bot id: got %d want %d", update.ManagedBot.Bot.ID, 12)
+			}
+		})
 	}
 }
 
-func TestUpdateMarshalUsesCanonicalDeletedBusinessMessagesField(t *testing.T) {
+func TestPollUnmarshalSupportsBotAPI96Fields(t *testing.T) {
+	var poll Poll
+
+	body := `{
+		"id": "poll-1",
+		"question": "Pick winners",
+		"question_entities": [],
+		"options": [],
+		"total_voter_count": 2,
+		"is_closed": false,
+		"is_anonymous": false,
+		"type": "quiz",
+		"allows_multiple_answers": true,
+		"allows_revoting": true,
+		"correct_option_ids": [1, 3]
+	}`
+
+	if err := json.Unmarshal([]byte(body), &poll); err != nil {
+		t.Fatalf("Unmarshal returned error: %v", err)
+	}
+	if !poll.AllowsRevoting {
+		t.Fatal("expected allows_revoting to be decoded")
+	}
+	if len(poll.CorrectOptionIDs) != 2 || poll.CorrectOptionIDs[0] != 1 || poll.CorrectOptionIDs[1] != 3 {
+		t.Fatalf("unexpected correct option ids: %#v", poll.CorrectOptionIDs)
+	}
+}
+
+func TestUpdateMarshalOmitsSyntheticTypeField(t *testing.T) {
 	update := Update{
 		UpdateID: 1,
-		DeletedBusinessMessage: &BusinessMessagesDeleted{
-			BusinessConnectionID: "conn",
-			Chat:                 Chat{ID: 42, Type: string(ChatTypePrivate)},
-			MessageIDs:           []int{7},
+		Type:     UpdateTypeCallbackQuery,
+		CallbackQuery: &CallbackQuery{
+			ID:           "cb",
+			From:         User{ID: 1, FirstName: "Test"},
+			ChatInstance: "instance",
+			Data:         "payload",
 		},
 	}
 
@@ -50,11 +139,8 @@ func TestUpdateMarshalUsesCanonicalDeletedBusinessMessagesField(t *testing.T) {
 	}
 
 	got := string(data)
-	if !strings.Contains(got, `"deleted_business_messages"`) {
-		t.Fatalf("expected canonical deleted_business_messages field, got %s", got)
-	}
-	if strings.Contains(got, `"deleted_business_message"`) {
-		t.Fatalf("unexpected singular deleted_business_message field, got %s", got)
+	if strings.Contains(got, `"type"`) {
+		t.Fatalf("unexpected synthetic type field, got %s", got)
 	}
 }
 
@@ -66,4 +152,66 @@ func TestUpdateShippingQueryIsNilWhenAbsent(t *testing.T) {
 	if update.ShippingQuery != nil {
 		t.Fatalf("expected ShippingQuery to be nil, got %+v", update.ShippingQuery)
 	}
+	if update.Type != UpdateTypeUnknown {
+		t.Fatalf("expected UpdateTypeUnknown, got %q", update.Type)
+	}
+}
+
+func TestMaybeInaccessibleMessageUnmarshalAccessibleMessage(t *testing.T) {
+	var wrapper MaybeInaccessibleMessage
+
+	body := `{
+		"message_id": 10,
+		"date": 1700000000,
+		"chat": {"id": 42, "type": "private"},
+		"text": "hello"
+	}`
+
+	if err := json.Unmarshal([]byte(body), &wrapper); err != nil {
+		t.Fatalf("Unmarshal returned error: %v", err)
+	}
+	if !wrapper.IsAccessible() {
+		t.Fatal("expected accessible message payload")
+	}
+	if wrapper.IsInaccessible() {
+		t.Fatal("expected inaccessible payload to be empty")
+	}
+	if wrapper.Message() == nil || wrapper.Message().Text != "hello" {
+		t.Fatalf("unexpected accessible payload: %#v", wrapper.Message())
+	}
+	if wrapper.MessageID() != 10 {
+		t.Fatalf("unexpected message id: got %d want %d", wrapper.MessageID(), 10)
+	}
+	if wrapper.Chat() == nil || wrapper.Chat().ID != 42 {
+		t.Fatalf("unexpected chat payload: %#v", wrapper.Chat())
+	}
+}
+
+func TestMaybeInaccessibleMessageUnmarshalInaccessibleMessage(t *testing.T) {
+	var wrapper MaybeInaccessibleMessage
+
+	body := `{
+		"message_id": 7,
+		"date": 0,
+		"chat": {"id": -1001, "type": "supergroup"}
+	}`
+
+	if err := json.Unmarshal([]byte(body), &wrapper); err != nil {
+		t.Fatalf("Unmarshal returned error: %v", err)
+	}
+	if wrapper.IsAccessible() {
+		t.Fatal("expected accessible payload to be empty")
+	}
+	if !wrapper.IsInaccessible() {
+		t.Fatal("expected inaccessible message payload")
+	}
+	if wrapper.InaccessibleMessage() == nil || wrapper.InaccessibleMessage().MessageID != 7 {
+		t.Fatalf("unexpected inaccessible payload: %#v", wrapper.InaccessibleMessage())
+	}
+	if wrapper.MessageID() != 7 {
+		t.Fatalf("unexpected message id: got %d want %d", wrapper.MessageID(), 7)
+	}
+	if wrapper.Chat() == nil || wrapper.Chat().ID != -1001 {
+		t.Fatalf("unexpected chat payload: %#v", wrapper.Chat())
+	}
 }

tgapi/uploader_api.go

@@ -7,10 +7,11 @@ import (
 	"mime/multipart"
 	"net/http"
 	"path/filepath"
+	"strings"
 	"time"
 
-	"git.nix13.pw/scuroneko/laniakea/utils"
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 const (
@@ -70,6 +71,11 @@ type Uploader struct {
 // NewUploader creates a multipart uploader bound to an API client.
 func NewUploader(api *API) *Uploader {
 	logger := utils.CreateLogger("UPLOADER", utils.GetLoggerLevel())
+	if api == nil {
+		logger.Errorln("api is nil")
+		_ = logger.Close()
+		return nil
+	}
 	return &Uploader{api, logger}
 }
 
@@ -81,8 +87,12 @@ func (u *Uploader) Close() error { return u.logger.Close() }
 // See https://core.telegram.org/bots/api
 func (u *Uploader) GetLogger() *slog.Logger { return u.logger }
 
-// UploaderRequest is a multipart file upload request to the Telegram API.
-// Use NewUploaderRequest or NewUploaderRequestWithChatID to construct one.
+// UploaderRequest is a low-level multipart upload request wrapper.
+//
+// Prefer method-specific helpers such as SendPhoto or SetWebhook. UploaderRequest
+// is intended for advanced use cases where callers manage the method name, files,
+// and request/response types themselves. In that sense it is an unsafe escape
+// hatch compared with the typed uploader API.
 type UploaderRequest[R, P any] struct {
 	method string
 	files  []UploaderFile
@@ -90,16 +100,17 @@ type UploaderRequest[R, P any] struct {
 	chatId int64
 }
 
-// NewUploaderRequest creates a new multipart upload request with no associated chat ID.
+// NewUploaderRequest creates a low-level multipart upload request with no associated chat ID.
 func NewUploaderRequest[R, P any](method string, params P, files ...UploaderFile) UploaderRequest[R, P] {
 	return UploaderRequest[R, P]{method: method, files: files, params: params, chatId: 0}
 }
 
-// NewUploaderRequestWithChatID creates a new multipart upload request with an associated chat ID.
+// NewUploaderRequestWithChatID creates a low-level multipart upload request with an associated chat ID.
 // The chat ID is used for per-chat rate limiting.
 func NewUploaderRequestWithChatID[R, P any](method string, params P, chatId int64, files ...UploaderFile) UploaderRequest[R, P] {
 	return UploaderRequest[R, P]{method: method, files: files, params: params, chatId: chatId}
 }
+
 func (r UploaderRequest[R, P]) doRequest(ctx context.Context, up *Uploader) (R, error) {
 	var zero R
 
@@ -204,8 +215,7 @@ func (r UploaderRequest[R, P]) Do(up *Uploader) (R, error) {
 	return r.DoWithContext(context.Background(), up)
 }
 
-// prepareMultipart builds a multipart form body from the given files and params.
-// Params are encoded via utils.Encode. The writer boundary is finalized before returning.
+// Internal helper that builds a finalized multipart body from files and params.
 func prepareMultipart[P any](files []UploaderFile, params P) (*bytes.Buffer, string, error) {
 	buf := bytes.NewBuffer(nil)
 	w := multipart.NewWriter(buf)
@@ -238,10 +248,9 @@ func prepareMultipart[P any](files []UploaderFile, params P) (*bytes.Buffer, str
 	return buf, w.FormDataContentType(), nil
 }
 
-// uploaderTypeByExt infers the Telegram upload field name from a file extension.
-// Falls back to UploaderDocumentType for unrecognized extensions.
+// Internal helper that infers an upload field name from a file extension.
 func uploaderTypeByExt(filename string) UploaderFileType {
-	ext := filepath.Ext(filename)
+	ext := strings.ToLower(filepath.Ext(filename))
 	switch ext {
 	case ".jpg", ".jpeg", ".png", ".webp", ".bmp":
 		return UploaderPhotoType

tgapi/uploader_api_test.go

@@ -57,7 +57,7 @@ func TestUploaderEncodesJSONFieldsAndLeavesAcceptEncodingToHTTPTransport(t *test
 	}()
 
 	msg, err := uploader.SendPhoto(
-		UploadPhotoP{
+		UploadPhoto{
 			ChatID: 42,
 			CaptionEntities: []MessageEntity{{
 				Type:   MessageEntityBold,
@@ -104,6 +104,27 @@ func TestUploaderEncodesJSONFieldsAndLeavesAcceptEncodingToHTTPTransport(t *test
 	}
 }
 
+func TestNewUploaderFileDetectsFileTypeCaseInsensitively(t *testing.T) {
+	tests := []struct {
+		name     string
+		filename string
+		want     UploaderFileType
+	}{
+		{name: "uppercase photo", filename: "PHOTO.JPG", want: UploaderPhotoType},
+		{name: "uppercase voice", filename: "voice.OGG", want: UploaderVoiceType},
+		{name: "unknown defaults to document", filename: "archive.BIN", want: UploaderDocumentType},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			file := NewUploaderFile(tt.filename, []byte("x"))
+			if file.field != tt.want {
+				t.Fatalf("unexpected uploader field: got %q want %q", file.field, tt.want)
+			}
+		})
+	}
+}
+
 func readMultipartRequest(req *http.Request) (map[string]string, string, []byte, error) {
 	_, params, err := mime.ParseMediaType(req.Header.Get("Content-Type"))
 	if err != nil {

tgapi/uploader_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// UploadPhotoP holds parameters for uploading a photo using the Uploader.
+// UploadPhoto holds parameters for uploading a photo using the Uploader.
 // See https://core.telegram.org/bots/api#sendphoto
-type UploadPhotoP struct {
+type UploadPhoto struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -29,7 +29,7 @@ type UploadPhotoP struct {
 // SendPhoto uploads a photo via multipart and sends it as a message.
 // file is the photo file to upload.
 // See https://core.telegram.org/bots/api#sendphoto
-func (u *Uploader) SendPhoto(params UploadPhotoP, file UploaderFile) (Message, error) {
+func (u *Uploader) SendPhoto(params UploadPhoto, file UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendPhoto", params, params.ChatID, file)
 	return req.Do(u)
 }
@@ -39,14 +39,14 @@ func (u *Uploader) SendPhoto(params UploadPhotoP, file UploaderFile) (Message, e
 // SendPhotoWithContext is the context-aware variant of SendPhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendphoto
-func (u *Uploader) SendPhotoWithContext(ctx context.Context, params UploadPhotoP, file UploaderFile) (Message, error) {
+func (u *Uploader) SendPhotoWithContext(ctx context.Context, params UploadPhoto, file UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendPhoto", params, params.ChatID, file)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadAudioP holds parameters for uploading an audio file using the Uploader.
+// UploadAudio holds parameters for uploading an audio file using the Uploader.
 // See https://core.telegram.org/bots/api#sendaudio
-type UploadAudioP struct {
+type UploadAudio struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -73,7 +73,7 @@ type UploadAudioP struct {
 // SendAudio uploads an audio file via multipart and sends it as a message.
 // files are the audio file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#sendaudio
-func (u *Uploader) SendAudio(params UploadAudioP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendAudio(params UploadAudio, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendAudio", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -83,14 +83,14 @@ func (u *Uploader) SendAudio(params UploadAudioP, files ...UploaderFile) (Messag
 // SendAudioWithContext is the context-aware variant of SendAudio.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendaudio
-func (u *Uploader) SendAudioWithContext(ctx context.Context, params UploadAudioP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendAudioWithContext(ctx context.Context, params UploadAudio, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendAudio", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadDocumentP holds parameters for uploading a document using the Uploader.
+// UploadDocument holds parameters for uploading a document using the Uploader.
 // See https://core.telegram.org/bots/api#senddocument
-type UploadDocumentP struct {
+type UploadDocument struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -114,7 +114,7 @@ type UploadDocumentP struct {
 // SendDocument uploads a document via multipart and sends it as a message.
 // files are the document file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#senddocument
-func (u *Uploader) SendDocument(params UploadDocumentP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendDocument(params UploadDocument, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendDocument", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -124,14 +124,14 @@ func (u *Uploader) SendDocument(params UploadDocumentP, files ...UploaderFile) (
 // SendDocumentWithContext is the context-aware variant of SendDocument.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#senddocument
-func (u *Uploader) SendDocumentWithContext(ctx context.Context, params UploadDocumentP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendDocumentWithContext(ctx context.Context, params UploadDocument, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendDocument", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadVideoP holds parameters for uploading a video using the Uploader.
+// UploadVideo holds parameters for uploading a video using the Uploader.
 // See https://core.telegram.org/bots/api#sendvideo
-type UploadVideoP struct {
+type UploadVideo struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -162,7 +162,7 @@ type UploadVideoP struct {
 // SendVideo uploads a video via multipart and sends it as a message.
 // files are the video file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#sendvideo
-func (u *Uploader) SendVideo(params UploadVideoP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVideo(params UploadVideo, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVideo", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -172,14 +172,14 @@ func (u *Uploader) SendVideo(params UploadVideoP, files ...UploaderFile) (Messag
 // SendVideoWithContext is the context-aware variant of SendVideo.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvideo
-func (u *Uploader) SendVideoWithContext(ctx context.Context, params UploadVideoP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVideoWithContext(ctx context.Context, params UploadVideo, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVideo", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadAnimationP holds parameters for uploading an animation using the Uploader.
+// UploadAnimation holds parameters for uploading an animation using the Uploader.
 // See https://core.telegram.org/bots/api#sendanimation
-type UploadAnimationP struct {
+type UploadAnimation struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -208,7 +208,7 @@ type UploadAnimationP struct {
 // SendAnimation uploads an animation via multipart and sends it as a message.
 // files are the animation file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#sendanimation
-func (u *Uploader) SendAnimation(params UploadAnimationP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendAnimation(params UploadAnimation, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendAnimation", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -218,14 +218,14 @@ func (u *Uploader) SendAnimation(params UploadAnimationP, files ...UploaderFile)
 // SendAnimationWithContext is the context-aware variant of SendAnimation.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendanimation
-func (u *Uploader) SendAnimationWithContext(ctx context.Context, params UploadAnimationP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendAnimationWithContext(ctx context.Context, params UploadAnimation, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendAnimation", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadVoiceP holds parameters for uploading a voice note using the Uploader.
+// UploadVoice holds parameters for uploading a voice note using the Uploader.
 // See https://core.telegram.org/bots/api#sendvoice
-type UploadVoiceP struct {
+type UploadVoice struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -249,7 +249,7 @@ type UploadVoiceP struct {
 // SendVoice uploads a voice note via multipart and sends it as a message.
 // files are the voice file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#sendvoice
-func (u *Uploader) SendVoice(params UploadVoiceP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVoice(params UploadVoice, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVoice", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -259,14 +259,14 @@ func (u *Uploader) SendVoice(params UploadVoiceP, files ...UploaderFile) (Messag
 // SendVoiceWithContext is the context-aware variant of SendVoice.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvoice
-func (u *Uploader) SendVoiceWithContext(ctx context.Context, params UploadVoiceP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVoiceWithContext(ctx context.Context, params UploadVoice, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVoice", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadVideoNoteP holds parameters for uploading a video note (rounded video) using the Uploader.
+// UploadVideoNote holds parameters for uploading a video note (rounded video) using the Uploader.
 // See https://core.telegram.org/bots/api#sendvideonote
-type UploadVideoNoteP struct {
+type UploadVideoNote struct {
 	BusinessConnectionID  string `json:"business_connection_id,omitempty"`
 	ChatID                int64  `json:"chat_id"`
 	MessageThreadID       int    `json:"message_thread_id,omitempty"`
@@ -288,7 +288,7 @@ type UploadVideoNoteP struct {
 // SendVideoNote uploads a video note via multipart and sends it as a message.
 // files are the video note file(s) to upload (typically one file).
 // See https://core.telegram.org/bots/api#sendvideonote
-func (u *Uploader) SendVideoNote(params UploadVideoNoteP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVideoNote(params UploadVideoNote, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVideoNote", params, params.ChatID, files...)
 	return req.Do(u)
 }
@@ -298,21 +298,21 @@ func (u *Uploader) SendVideoNote(params UploadVideoNoteP, files ...UploaderFile)
 // SendVideoNoteWithContext is the context-aware variant of SendVideoNote.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#sendvideonote
-func (u *Uploader) SendVideoNoteWithContext(ctx context.Context, params UploadVideoNoteP, files ...UploaderFile) (Message, error) {
+func (u *Uploader) SendVideoNoteWithContext(ctx context.Context, params UploadVideoNote, files ...UploaderFile) (Message, error) {
 	req := NewUploaderRequestWithChatID[Message]("sendVideoNote", params, params.ChatID, files...)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadChatPhotoP holds parameters for uploading a chat photo using the Uploader.
+// UploadChatPhoto holds parameters for uploading a chat photo using the Uploader.
 // See https://core.telegram.org/bots/api#setchatphoto
-type UploadChatPhotoP struct {
+type UploadChatPhoto struct {
 	ChatID int64 `json:"chat_id"`
 }
 
 // SetChatPhoto uploads a new chat photo.
 // photo is the photo file to upload.
 // See https://core.telegram.org/bots/api#setchatphoto
-func (u *Uploader) SetChatPhoto(params UploadChatPhotoP, photo UploaderFile) (bool, error) {
+func (u *Uploader) SetChatPhoto(params UploadChatPhoto, photo UploaderFile) (bool, error) {
 	req := NewUploaderRequestWithChatID[bool]("setChatPhoto", params, params.ChatID, photo)
 	return req.Do(u)
 }
@@ -322,18 +322,18 @@ func (u *Uploader) SetChatPhoto(params UploadChatPhotoP, photo UploaderFile) (bo
 // SetChatPhotoWithContext is the context-aware variant of SetChatPhoto.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setchatphoto
-func (u *Uploader) SetChatPhotoWithContext(ctx context.Context, params UploadChatPhotoP, photo UploaderFile) (bool, error) {
+func (u *Uploader) SetChatPhotoWithContext(ctx context.Context, params UploadChatPhoto, photo UploaderFile) (bool, error) {
 	req := NewUploaderRequestWithChatID[bool]("setChatPhoto", params, params.ChatID, photo)
 	return req.DoWithContext(ctx, u)
 }
 
-// UploadSetWebhookP holds multipart parameters for the setWebhook method.
+// UploadSetWebhook holds multipart parameters for the setWebhook method.
 // Use this type when uploading a self-signed certificate file.
 // See https://core.telegram.org/bots/api#setwebhook
-type UploadSetWebhookP struct {
+type UploadSetWebhook struct {
 	URL                string       `json:"url"`
 	IPAddress          string       `json:"ip_address,omitempty"`
-	MaxConnections     int          `json:"max_connections,omitempty"`
+	MaxConnections     int8         `json:"max_connections,omitempty"`
 	AllowedUpdates     []UpdateType `json:"allowed_updates,omitempty"`
 	DropPendingUpdates bool         `json:"drop_pending_updates,omitempty"`
 	SecretToken        string       `json:"secret_token,omitempty"`
@@ -342,7 +342,7 @@ type UploadSetWebhookP struct {
 // SetWebhook uploads a certificate and sets a webhook URL.
 // certificate maps to the multipart field \"certificate\".
 // See https://core.telegram.org/bots/api#setwebhook
-func (u *Uploader) SetWebhook(params UploadSetWebhookP, certificate UploaderFile) (bool, error) {
+func (u *Uploader) SetWebhook(params UploadSetWebhook, certificate UploaderFile) (bool, error) {
 	req := NewUploaderRequest[bool]("setWebhook", params, certificate.SetType(UploaderCertificateType))
 	return req.Do(u)
 }
@@ -350,7 +350,7 @@ func (u *Uploader) SetWebhook(params UploadSetWebhookP, certificate UploaderFile
 // SetWebhookWithContext is the context-aware variant of SetWebhook.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setwebhook
-func (u *Uploader) SetWebhookWithContext(ctx context.Context, params UploadSetWebhookP, certificate UploaderFile) (bool, error) {
+func (u *Uploader) SetWebhookWithContext(ctx context.Context, params UploadSetWebhook, certificate UploaderFile) (bool, error) {
 	req := NewUploaderRequest[bool]("setWebhook", params, certificate.SetType(UploaderCertificateType))
 	return req.DoWithContext(ctx, u)
 }

tgapi/users_methods.go

@@ -2,9 +2,9 @@ package tgapi
 
 import "context"
 
-// GetUserProfilePhotosP holds parameters for the GetUserProfilePhotos method.
+// GetUserProfilePhotos holds parameters for the GetUserProfilePhotos method.
 // See https://core.telegram.org/bots/api#getuserprofilephotos
-type GetUserProfilePhotosP struct {
+type GetUserProfilePhotos struct {
 	UserID int64 `json:"user_id"`
 	Offset int   `json:"offset,omitempty"`
 	Limit  int   `json:"limit,omitempty"`
@@ -12,7 +12,7 @@ type GetUserProfilePhotosP struct {
 
 // GetUserProfilePhotos returns a list of profile pictures for a user.
 // See https://core.telegram.org/bots/api#getuserprofilephotos
-func (api *API) GetUserProfilePhotos(params GetUserProfilePhotosP) (UserProfilePhotos, error) {
+func (api *API) GetUserProfilePhotos(params GetUserProfilePhotos) (UserProfilePhotos, error) {
 	req := NewRequest[UserProfilePhotos]("getUserProfilePhotos", params)
 	return req.Do(api)
 }
@@ -20,14 +20,14 @@ func (api *API) GetUserProfilePhotos(params GetUserProfilePhotosP) (UserProfileP
 // GetUserProfilePhotosWithContext is the context-aware variant of GetUserProfilePhotos.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getuserprofilephotos
-func (api *API) GetUserProfilePhotosWithContext(ctx context.Context, params GetUserProfilePhotosP) (UserProfilePhotos, error) {
+func (api *API) GetUserProfilePhotosWithContext(ctx context.Context, params GetUserProfilePhotos) (UserProfilePhotos, error) {
 	req := NewRequest[UserProfilePhotos]("getUserProfilePhotos", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetUserProfileAudiosP holds parameters for the GetUserProfileAudios method.
+// GetUserProfileAudios holds parameters for the GetUserProfileAudios method.
 // See https://core.telegram.org/bots/api#getuserprofileaudios
-type GetUserProfileAudiosP struct {
+type GetUserProfileAudios struct {
 	UserID int64 `json:"user_id"`
 	Offset int   `json:"offset,omitempty"`
 	Limit  int   `json:"limit,omitempty"`
@@ -35,7 +35,7 @@ type GetUserProfileAudiosP struct {
 
 // GetUserProfileAudios returns a list of profile audios for a user.
 // See https://core.telegram.org/bots/api#getuserprofileaudios
-func (api *API) GetUserProfileAudios(params GetUserProfileAudiosP) (UserProfileAudios, error) {
+func (api *API) GetUserProfileAudios(params GetUserProfileAudios) (UserProfileAudios, error) {
 	req := NewRequest[UserProfileAudios]("getUserProfileAudios", params)
 	return req.Do(api)
 }
@@ -43,14 +43,14 @@ func (api *API) GetUserProfileAudios(params GetUserProfileAudiosP) (UserProfileA
 // GetUserProfileAudiosWithContext is the context-aware variant of GetUserProfileAudios.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getuserprofileaudios
-func (api *API) GetUserProfileAudiosWithContext(ctx context.Context, params GetUserProfileAudiosP) (UserProfileAudios, error) {
+func (api *API) GetUserProfileAudiosWithContext(ctx context.Context, params GetUserProfileAudios) (UserProfileAudios, error) {
 	req := NewRequest[UserProfileAudios]("getUserProfileAudios", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// SetUserEmojiStatusP holds parameters for the SetUserEmojiStatus method.
+// SetUserEmojiStatus holds parameters for the SetUserEmojiStatus method.
 // See https://core.telegram.org/bots/api#setuseremojistatus
-type SetUserEmojiStatusP struct {
+type SetUserEmojiStatus struct {
 	UserID         int64  `json:"user_id"`
 	EmojiID        string `json:"emoji_status_custom_emoji_id,omitempty"`
 	ExpirationDate int    `json:"emoji_status_expiration_date,omitempty"`
@@ -59,7 +59,7 @@ type SetUserEmojiStatusP struct {
 // SetUserEmojiStatus sets a custom emoji status for a user.
 // Returns true on success.
 // See https://core.telegram.org/bots/api#setuseremojistatus
-func (api *API) SetUserEmojiStatus(params SetUserEmojiStatusP) (bool, error) {
+func (api *API) SetUserEmojiStatus(params SetUserEmojiStatus) (bool, error) {
 	req := NewRequest[bool]("setUserEmojiStatus", params)
 	return req.Do(api)
 }
@@ -67,14 +67,14 @@ func (api *API) SetUserEmojiStatus(params SetUserEmojiStatusP) (bool, error) {
 // SetUserEmojiStatusWithContext is the context-aware variant of SetUserEmojiStatus.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#setuseremojistatus
-func (api *API) SetUserEmojiStatusWithContext(ctx context.Context, params SetUserEmojiStatusP) (bool, error) {
+func (api *API) SetUserEmojiStatusWithContext(ctx context.Context, params SetUserEmojiStatus) (bool, error) {
 	req := NewRequest[bool]("setUserEmojiStatus", params)
 	return req.DoWithContext(ctx, api)
 }
 
-// GetUserGiftsP holds parameters for the GetUserGifts method.
+// GetUserGifts holds parameters for the GetUserGifts method.
 // See https://core.telegram.org/bots/api#getusergifts
-type GetUserGiftsP struct {
+type GetUserGifts struct {
 	UserID                      int64  `json:"user_id"`
 	ExcludeUnlimited            bool   `json:"exclude_unlimited,omitempty"`
 	ExcludeLimitedUpgradable    bool   `json:"exclude_limited_upgradable,omitempty"`
@@ -88,7 +88,7 @@ type GetUserGiftsP struct {
 
 // GetUserGifts returns gifts owned by a user.
 // See https://core.telegram.org/bots/api#getusergifts
-func (api *API) GetUserGifts(params GetUserGiftsP) (OwnedGifts, error) {
+func (api *API) GetUserGifts(params GetUserGifts) (OwnedGifts, error) {
 	req := NewRequest[OwnedGifts]("getUserGifts", params)
 	return req.Do(api)
 }
@@ -96,7 +96,7 @@ func (api *API) GetUserGifts(params GetUserGiftsP) (OwnedGifts, error) {
 // GetUserGiftsWithContext is the context-aware variant of GetUserGifts.
 // It executes the same request but uses ctx for cancellation and deadlines.
 // See https://core.telegram.org/bots/api#getusergifts
-func (api *API) GetUserGiftsWithContext(ctx context.Context, params GetUserGiftsP) (OwnedGifts, error) {
+func (api *API) GetUserGiftsWithContext(ctx context.Context, params GetUserGifts) (OwnedGifts, error) {
 	req := NewRequest[OwnedGifts]("getUserGifts", params)
 	return req.DoWithContext(ctx, api)
 }

tgapi/users_types.go

@@ -13,6 +13,7 @@ type User struct {
 	AddedToAttachmentMenu     *bool   `json:"added_to_attachment_menu,omitempty"`
 	CanJoinGroups             *bool   `json:"can_join_groups,omitempty"`
 	CanReadAllGroupMessages   *bool   `json:"can_read_all_group_messages,omitempty"`
+	CanManageBots             *bool   `json:"can_manage_bots,omitempty"`
 	SupportsInlineQueries     *bool   `json:"supports_inline_queries,omitempty"`
 	CanConnectToBusiness      *bool   `json:"can_connect_to_business,omitempty"`
 	HasMainWebApp             *bool   `json:"has_main_web_app,omitempty"`

update_context.go

@@ -0,0 +1,223 @@
+package laniakea
+
+import (
+	"time"
+
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+)
+
+func (bot *Bot[T]) handleUpdate(u *tgapi.Update, ctx *MsgContext) bool {
+	handled := false
+	for _, plugin := range bot.plugins {
+		handler, ok := plugin.handlers[u.Type]
+		if !ok {
+			continue
+		}
+
+		pluginCtx := cloneMsgContext(ctx)
+		if plugin.logger != nil {
+			pluginCtx.Logger = plugin.logger
+		}
+		if !plugin.executeMiddlewares(pluginCtx, bot.appData) {
+			continue
+		}
+		startTime := time.Now()
+		bot.safeEmitEvent(pluginCtx.Context(), HandlerStartedEvent{
+			UpdateID:    u.UpdateID,
+			UpdateType:  u.Type,
+			Plugin:      plugin.name,
+			HandlerKind: HandlerUpdateKind,
+			HandlerName: string(u.Type),
+			FromID:      pluginCtx.FromID,
+			ChatID:      pluginCtx.ChatID,
+		})
+		err := handler(pluginCtx, bot.appData)
+		endEvent := HandlerFinishedEvent{
+			UpdateID:    u.UpdateID,
+			UpdateType:  u.Type,
+			Plugin:      plugin.name,
+			HandlerKind: HandlerUpdateKind,
+			HandlerName: string(u.Type),
+			FromID:      pluginCtx.FromID,
+			ChatID:      pluginCtx.ChatID,
+			Duration:    time.Since(startTime),
+		}
+		if err != nil {
+			endEvent.Err = err
+			endEvent.UserFacing = IsUserError(err)
+		}
+		bot.safeEmitEvent(pluginCtx.Context(), endEvent)
+		if err != nil {
+			bot.safeEmitEvent(pluginCtx.Context(), ErrorEvent{
+				UpdateID:    u.UpdateID,
+				UpdateType:  u.Type,
+				Plugin:      plugin.name,
+				HandlerKind: HandlerUpdateKind,
+				HandlerName: string(u.Type),
+				FromID:      pluginCtx.FromID,
+				ChatID:      pluginCtx.ChatID,
+				Err:         err,
+				UserFacing:  IsUserError(err),
+			})
+			pluginCtx.error(err)
+		}
+		handled = true
+	}
+	return handled
+}
+
+func (bot *Bot[T]) prepareUpdateCtx(u *tgapi.Update, ctx *MsgContext) {
+	var from *tgapi.User
+	var chat *tgapi.Chat
+	switch u.Type {
+	case tgapi.UpdateTypeMessage:
+		if u.Message != nil {
+			ctx.Msg = u.Message
+			if u.Message.Chat != nil {
+				chat = u.Message.Chat
+			}
+			if u.Message.From != nil {
+				from = u.Message.From
+			}
+		}
+	case tgapi.UpdateTypeEditedMessage:
+		if u.EditedMessage != nil {
+			ctx.Msg = u.EditedMessage
+			if u.EditedMessage.Chat != nil {
+				chat = u.EditedMessage.Chat
+			}
+			if u.EditedMessage.From != nil {
+				from = u.EditedMessage.From
+			}
+		}
+	case tgapi.UpdateTypeChannelPost:
+		if u.ChannelPost != nil {
+			ctx.Msg = u.ChannelPost
+			if u.ChannelPost.Chat != nil {
+				chat = u.ChannelPost.Chat
+			}
+			if u.ChannelPost.From != nil {
+				from = u.ChannelPost.From
+			}
+		}
+	case tgapi.UpdateTypeEditedChannelPost:
+		if u.EditedChannelPost != nil {
+			ctx.Msg = u.EditedChannelPost
+			if u.EditedChannelPost.Chat != nil {
+				chat = u.EditedChannelPost.Chat
+			}
+			if u.EditedChannelPost.From != nil {
+				from = u.EditedChannelPost.From
+			}
+		}
+	case tgapi.UpdateTypeBusinessMessage:
+		if u.BusinessMessage != nil {
+			ctx.Msg = u.BusinessMessage
+			if u.BusinessMessage.Chat != nil {
+				chat = u.BusinessMessage.Chat
+			}
+			if u.BusinessMessage.From != nil {
+				from = u.BusinessMessage.From
+			}
+		}
+	case tgapi.UpdateTypeEditedBusinessMessage:
+		if u.EditedBusinessMessage != nil {
+			ctx.Msg = u.EditedBusinessMessage
+			if u.EditedBusinessMessage.Chat != nil {
+				chat = u.EditedBusinessMessage.Chat
+			}
+			if u.EditedBusinessMessage.From != nil {
+				from = u.EditedBusinessMessage.From
+			}
+		}
+	case tgapi.UpdateTypeInlineQuery:
+		if u.InlineQuery != nil {
+			from = &u.InlineQuery.From
+		}
+	case tgapi.UpdateTypeChosenInlineResult:
+		if u.ChosenInlineResult != nil {
+			from = &u.ChosenInlineResult.From
+		}
+	case tgapi.UpdateTypeCallbackQuery:
+		if u.CallbackQuery != nil {
+			if u.CallbackQuery.Message != nil {
+				ctx.Msg = u.CallbackQuery.Message
+				ctx.CallbackMsgId = u.CallbackQuery.Message.MessageID
+				if u.CallbackQuery.Message.Chat != nil {
+					chat = u.CallbackQuery.Message.Chat
+				}
+			}
+			if u.CallbackQuery.InlineMessageID != nil {
+				ctx.InlineMsgId = *u.CallbackQuery.InlineMessageID
+			}
+			ctx.CallbackQueryId = u.CallbackQuery.ID
+			from = &u.CallbackQuery.From
+		}
+	case tgapi.UpdateTypeShippingQuery:
+		if u.ShippingQuery != nil {
+			from = &u.ShippingQuery.From
+		}
+	case tgapi.UpdateTypePreCheckoutQuery:
+		if u.PreCheckoutQuery != nil {
+			from = &u.PreCheckoutQuery.From
+		}
+	case tgapi.UpdateTypePurchasedPaidMedia:
+		if u.PurchasedPaidMedia != nil {
+			from = &u.PurchasedPaidMedia.From
+		}
+	case tgapi.UpdateTypeMyChatMember:
+		if u.MyChatMember != nil {
+			from = &u.MyChatMember.From
+			chat = &u.MyChatMember.Chat
+		}
+	case tgapi.UpdateTypeChatMember:
+		if u.ChatMember != nil {
+			from = &u.ChatMember.From
+			chat = &u.ChatMember.Chat
+		}
+	case tgapi.UpdateTypeChatJoinRequest:
+		if u.ChatJoinRequest != nil {
+			from = &u.ChatJoinRequest.From
+			chat = &u.ChatJoinRequest.Chat
+
+		}
+	case tgapi.UpdateTypeBusinessConnection:
+		if u.BusinessConnection != nil {
+			from = &u.BusinessConnection.User
+		}
+	case tgapi.UpdateTypePollAnswer:
+		if u.PollAnswer != nil {
+			from = &u.PollAnswer.User
+		}
+	case tgapi.UpdateTypeMessageReaction:
+		if u.MessageReaction != nil {
+			from = u.MessageReaction.User
+			chat = u.MessageReaction.Chat
+		}
+	case tgapi.UpdateTypeChatBoost:
+		if u.ChatBoost != nil {
+			from = &u.ChatBoost.Boost.Source.User
+			chat = &u.ChatBoost.Chat
+		}
+	case tgapi.UpdateTypeRemovedChatBoost:
+		if u.RemovedChatBoost != nil {
+			from = &u.RemovedChatBoost.Source.User
+			chat = &u.RemovedChatBoost.Chat
+		}
+	}
+	if ctx.Msg != nil && from == nil {
+		from = ctx.Msg.From
+	}
+	if from != nil {
+		ctx.From = from
+		ctx.FromID = from.ID
+	} else {
+		ctx.FromID = 0
+	}
+	if chat != nil {
+		ctx.Chat = chat
+		ctx.ChatID = chat.ID
+	} else {
+		ctx.ChatID = 0
+	}
+}

utils.go

@@ -3,7 +3,7 @@ package laniakea
 import (
 	"strings"
 
-	"git.nix13.pw/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
 )
 
 // Ptr returns a pointer to v.
@@ -53,11 +53,15 @@ func EscapePunctuation(s string) string {
 	return s
 }
 
-// Version constants mirror values from the internal utils/version package.
 const (
+	// VersionString re-exports the module version string.
 	VersionString = utils.VersionString
-	VersionMajor  = utils.VersionMajor
-	VersionMinor  = utils.VersionMinor
-	VersionPatch  = utils.VersionPatch
-	VersionBeta   = utils.VersionBeta
+	// VersionMajor re-exports the module major version.
+	VersionMajor = utils.VersionMajor
+	// VersionMinor re-exports the module minor version.
+	VersionMinor = utils.VersionMinor
+	// VersionPatch re-exports the module patch version.
+	VersionPatch = utils.VersionPatch
+	// VersionBeta re-exports the module prerelease counter.
+	VersionBeta = utils.VersionBeta
 )

utils/limiter.go

@@ -9,6 +9,7 @@ import (
 	"golang.org/x/time/rate"
 )
 
+// ErrDropOverflow is returned when drop mode rejects a rate-limited request.
 var ErrDropOverflow = errors.New("drop overflow limit")
 
 // RateLimiter implements per-chat and global rate limiting with optional blocking.
@@ -102,7 +103,7 @@ func (rl *RateLimiter) Wait(ctx context.Context, chatID int64) error {
 	return chatLimiter.Wait(ctx)
 }
 
-// getGlobalLimiter returns the global limiter safely under read lock.
+// Internal helper that returns the global limiter under read lock.
 func (rl *RateLimiter) getGlobalLimiter() *rate.Limiter {
 	rl.globalMu.RLock()
 	defer rl.globalMu.RUnlock()
@@ -190,8 +191,7 @@ func (rl *RateLimiter) Check(ctx context.Context, dropOverflow bool, chatID int6
 	return nil
 }
 
-// waitForGlobalUnlock blocks until global cooldown expires or context is done.
-// Does not check token bucket — only cooldown.
+// Internal helper that waits for the global cooldown to expire.
 func (rl *RateLimiter) waitForGlobalUnlock(ctx context.Context) error {
 	rl.globalMu.RLock()
 	until := rl.globalLockUntil
@@ -209,8 +209,7 @@ func (rl *RateLimiter) waitForGlobalUnlock(ctx context.Context) error {
 	}
 }
 
-// waitForChatUnlock blocks until the specified chat's cooldown expires or context is done.
-// Does not check token bucket — only cooldown.
+// Internal helper that waits for a chat-specific cooldown to expire.
 func (rl *RateLimiter) waitForChatUnlock(ctx context.Context, chatID int64) error {
 	rl.chatMu.RLock()
 	until, ok := rl.chatLocks[chatID]
@@ -228,8 +227,7 @@ func (rl *RateLimiter) waitForChatUnlock(ctx context.Context, chatID int64) erro
 	}
 }
 
-// getChatLimiter returns the rate limiter for the given chat, creating it if needed.
-// Uses 1 request per second with burst of 1 — conservative for per-user limits.
+// Internal helper that returns or creates a per-chat limiter.
 func (rl *RateLimiter) getChatLimiter(chatID int64) *rate.Limiter {
 	rl.chatMu.Lock()
 	defer rl.chatMu.Unlock()

utils/limiter_test.go

@@ -0,0 +1,41 @@
+package utils
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+)
+
+func TestRateLimiterCheckDropOverflowHonorsGlobalLock(t *testing.T) {
+	rl := NewRateLimiter()
+	rl.SetGlobalLock(1)
+
+	if err := rl.Check(context.Background(), true, 0); !errors.Is(err, ErrDropOverflow) {
+		t.Fatalf("expected ErrDropOverflow, got %v", err)
+	}
+}
+
+func TestRateLimiterChatLocksAreScopedPerChat(t *testing.T) {
+	rl := NewRateLimiter()
+	rl.SetChatLock(42, 1)
+
+	if rl.Allow(42) {
+		t.Fatal("expected locked chat to be rejected")
+	}
+	if !rl.Allow(7) {
+		t.Fatal("expected unrelated chat to remain allowed")
+	}
+}
+
+func TestRateLimiterGlobalWaitRespectsContextCancellation(t *testing.T) {
+	rl := NewRateLimiter()
+	rl.SetGlobalLock(1)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Millisecond)
+	defer cancel()
+
+	if err := rl.GlobalWait(ctx); !errors.Is(err, context.DeadlineExceeded) {
+		t.Fatalf("expected DeadlineExceeded, got %v", err)
+	}
+}

utils/multipart.go

@@ -3,7 +3,6 @@ package utils
 import (
 	"encoding/json"
 	"fmt"
-	"io"
 	"mime/multipart"
 	"reflect"
 	"slices"
@@ -110,6 +109,6 @@ func writeMultipartValue(w *multipart.Writer, fieldName string, value []byte) er
 	if err != nil {
 		return err
 	}
-	_, err = io.Copy(fw, strings.NewReader(string(value)))
+	_, err = fw.Write(value)
 	return err
 }

utils/multipart_test.go

@@ -6,8 +6,8 @@ import (
 	"mime/multipart"
 	"testing"
 
-	"git.nix13.pw/scuroneko/laniakea/tgapi"
-	"git.nix13.pw/scuroneko/laniakea/utils"
+	"git.scuroneko.dev/scuroneko/laniakea/tgapi"
+	"git.scuroneko.dev/scuroneko/laniakea/utils"
 )
 
 type multipartEncodeParams struct {
@@ -19,10 +19,9 @@ type multipartEncodeParams struct {
 }
 
 func TestEncodeMultipartJSONFields(t *testing.T) {
-	threadID := 7
 	params := multipartEncodeParams{
 		ChatID:          42,
-		MessageThreadID: &threadID,
+		MessageThreadID: new(7),
 		ReplyMarkup: &tgapi.ReplyMarkup{
 			InlineKeyboard: [][]tgapi.InlineKeyboardButton{{
 				{Text: "A", CallbackData: "b"},

utils/utils.go

@@ -3,7 +3,7 @@ package utils
 import (
 	"os"
 
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 // GetLoggerLevel returns DEBUG when DEBUG=true in env, otherwise FATAL.

utils/utils_test.go

@@ -6,7 +6,7 @@ import (
 	"strings"
 	"testing"
 
-	"git.nix13.pw/scuroneko/slog"
+	"git.scuroneko.dev/scuroneko/slog"
 )
 
 func TestCreateFileLoggerWritesToConfiguredFile(t *testing.T) {

utils/version.go

@@ -1,9 +1,14 @@
 package utils
 
 const (
-	VersionString = "1.0.0-rc.7"
-	VersionMajor  = 1
-	VersionMinor  = 0
-	VersionPatch  = 0
-	VersionBeta   = 7
+	// VersionString is the module version string.
+	VersionString = "1.0.0-rc.14"
+	// VersionMajor is the module major version.
+	VersionMajor = 1
+	// VersionMinor is the module minor version.
+	VersionMinor = 0
+	// VersionPatch is the module patch version.
+	VersionPatch = 0
+	// VersionBeta is the prerelease counter for the current version.
+	VersionBeta = 14
 )