package tgapi

import "encoding/json"

// UpdateType represents the type of incoming update.
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.
	UpdateTypeEditedMessage UpdateType = "edited_message"
	// UpdateTypeChannelPost is a channel post update.
	UpdateTypeChannelPost UpdateType = "channel_post"
	// UpdateTypeEditedChannelPost is an edited channel post update.
	UpdateTypeEditedChannelPost UpdateType = "edited_channel_post"
	// UpdateTypeMessageReaction is a message reaction update.
	UpdateTypeMessageReaction UpdateType = "message_reaction"
	// UpdateTypeMessageReactionCount is a message reaction count update.
	UpdateTypeMessageReactionCount UpdateType = "message_reaction_count"

	// UpdateTypeBusinessConnection is a business connection update.
	UpdateTypeBusinessConnection UpdateType = "business_connection"
	// UpdateTypeBusinessMessage is a business message update.
	UpdateTypeBusinessMessage UpdateType = "business_message"
	// UpdateTypeEditedBusinessMessage is an edited business message update.
	UpdateTypeEditedBusinessMessage UpdateType = "edited_business_message"
	// UpdateTypeDeletedBusinessMessages is a deleted business messages update.
	UpdateTypeDeletedBusinessMessages UpdateType = "deleted_business_messages"

	// UpdateTypeInlineQuery is an inline query update.
	UpdateTypeInlineQuery UpdateType = "inline_query"
	// UpdateTypeChosenInlineResult is a chosen inline result update.
	UpdateTypeChosenInlineResult UpdateType = "chosen_inline_result"
	// UpdateTypeCallbackQuery is a callback query update.
	UpdateTypeCallbackQuery UpdateType = "callback_query"
	// UpdateTypeShippingQuery is a shipping query update.
	UpdateTypeShippingQuery UpdateType = "shipping_query"
	// UpdateTypePreCheckoutQuery is a pre-checkout query update.
	UpdateTypePreCheckoutQuery UpdateType = "pre_checkout_query"
	// UpdateTypePurchasedPaidMedia is a purchased paid media update.
	UpdateTypePurchasedPaidMedia UpdateType = "purchased_paid_media"
	// UpdateTypePoll is a poll update.
	UpdateTypePoll UpdateType = "poll"
	// UpdateTypePollAnswer is a poll answer update.
	UpdateTypePollAnswer UpdateType = "poll_answer"
	// UpdateTypeMyChatMember is a my chat member update.
	UpdateTypeMyChatMember UpdateType = "my_chat_member"
	// UpdateTypeChatMember is a chat member update.
	UpdateTypeChatMember UpdateType = "chat_member"
	// UpdateTypeChatJoinRequest is a chat join request update.
	UpdateTypeChatJoinRequest UpdateType = "chat_join_request"
	// UpdateTypeChatBoost is a chat boost update.
	UpdateTypeChatBoost UpdateType = "chat_boost"
	// UpdateTypeRemovedChatBoost is a removed chat boost update.
	UpdateTypeRemovedChatBoost UpdateType = "removed_chat_boost"

	// UpdateTypeManagedBot is a managed bot update.
	UpdateTypeManagedBot UpdateType = "managed_bot"

	// UpdateTypeGuestMessage is a guest message update.
	UpdateTypeGuestMessage UpdateType = "guest_message"

	// UpdateTypeSubscription is a bot subscription update.
	//
	// Since: Bot API 10.2
	UpdateTypeSubscription UpdateType = "subscription"
)

// Update represents an incoming update from Telegram.
// Since: Bot API 1.0
// See https://core.telegram.org/bots/api#update
type Update struct {
	// Type is the locally derived update type and is not part of Telegram JSON.
	Type UpdateType `json:"-"`

	// UpdateID The update's unique identifier. Update identifiers start from a certain positive number and
	// increase sequentially. This identifier becomes especially handy if you're using webhooks, since it allows
	// you to ignore repeated updates or to restore the correct update sequence, should they get out of order.
	// If there are no new updates for at least a week, then identifier of the next update will be chosen
	// randomly instead of sequentially.
	UpdateID int `json:"update_id"`
	// Message Optional. New incoming message of any kind - text, photo, sticker, etc.
	Message *Message `json:"message,omitempty"`
	// EditedMessage Optional. New version of a message that is known to the bot and was edited. This update may
	// at times be triggered by changes to message fields that are either unavailable or not actively used by
	// your bot.
	EditedMessage *Message `json:"edited_message,omitempty"`
	// ChannelPost Optional. New incoming channel post of any kind - text, photo, sticker, etc.
	ChannelPost *Message `json:"channel_post,omitempty"` // Since: Bot API 2.3
	// EditedChannelPost Optional. New version of a channel post that is known to the bot and was edited. This
	// update may at times be triggered by changes to message fields that are either unavailable or not actively
	// used by your bot.
	EditedChannelPost *Message `json:"edited_channel_post,omitempty"` // Since: Bot API 2.3

	// BusinessConnection Optional. The bot was connected to or disconnected from a business account, or a user
	// edited an existing connection with the bot
	BusinessConnection *BusinessConnection `json:"business_connection,omitempty"` // Since: Bot API 7.2
	// BusinessMessage Optional. New message from a connected business account
	BusinessMessage *Message `json:"business_message,omitempty"` // Since: Bot API 7.2
	// EditedBusinessMessage Optional. New version of a message from a connected business account
	EditedBusinessMessage *Message `json:"edited_business_message,omitempty"` // Since: Bot API 7.2
	// DeletedBusinessMessages Optional. Messages were deleted from a connected business account
	DeletedBusinessMessages *BusinessMessagesDeleted `json:"deleted_business_messages,omitempty"` // Since: Bot API 7.2
	// GuestMessage Optional. New guest message. The bot can use the field Message.guest_query_id and the method
	// answerGuestQuery to send a message in response.
	GuestMessage *Message `json:"guest_message,omitempty"` // Since: Bot API 10.0
	// MessageReaction Optional. A reaction to a message was changed by a user. The bot must be an administrator
	// in the chat and must explicitly specify "message_reaction" in the list of allowed_updates to receive
	// these updates. The update isn't received for reactions set by bots.
	MessageReaction *MessageReactionUpdated `json:"message_reaction,omitempty"` // Since: Bot API 7.0
	// MessageReactionCount Optional. Reactions to a message with anonymous reactions were changed. The bot must
	// be an administrator in the chat and must explicitly specify "message_reaction_count" in the list of
	// allowed_updates to receive these updates. The updates are grouped and can be sent with delay up to a few
	// minutes.
	MessageReactionCount *MessageReactionCountUpdated `json:"message_reaction_count,omitempty"` // Since: Bot API 7.0

	// InlineQuery Optional. New incoming inline query
	InlineQuery *InlineQuery `json:"inline_query,omitempty"` // Since: Bot API 1.7
	// ChosenInlineResult Optional. The result of an inline query that was chosen by a user and sent to their
	// chat partner. Please see our documentation on the feedback collecting for details on how to enable these
	// updates for your bot.
	ChosenInlineResult *ChosenInlineResult `json:"chosen_inline_result,omitempty"` // Since: Bot API 1.8
	// CallbackQuery Optional. New incoming callback query
	CallbackQuery *CallbackQuery `json:"callback_query,omitempty"` // Since: Bot API 2.0
	// ShippingQuery Optional. New incoming shipping query. Only for invoices with flexible price.
	ShippingQuery *ShippingQuery `json:"shipping_query,omitempty"` // Since: Bot API 3.0
	// PreCheckoutQuery Optional. New incoming pre-checkout query. Contains full information about checkout.
	PreCheckoutQuery *PreCheckoutQuery `json:"pre_checkout_query,omitempty"` // Since: Bot API 3.0
	// PurchasedPaidMedia Optional. A user purchased paid media with a non-empty payload sent by the bot in a
	// non-channel chat
	PurchasedPaidMedia *PaidMediaPurchased `json:"purchased_paid_media,omitempty"` // Since: Bot API 7.10

	// Poll Optional. New poll state. Bots receive only updates about manually stopped polls and polls, which
	// are sent by the bot.
	Poll *Poll `json:"poll,omitempty"` // Since: Bot API 4.2
	// PollAnswer Optional. A user changed their answer in a non-anonymous poll. Bots receive new votes only in
	// polls that were sent by the bot itself.
	PollAnswer *PollAnswer `json:"poll_answer,omitempty"` // Since: Bot API 4.6
	// MyChatMember Optional. The bot's chat member status was updated in a chat. For private chats, this update
	// is received only when the bot is blocked or unblocked by the user.
	MyChatMember *ChatMemberUpdated `json:"my_chat_member,omitempty"` // Since: Bot API 5.1
	// ChatMember Optional. A chat member's status was updated in a chat. The bot must be an administrator in
	// the chat and must explicitly specify "chat_member" in the list of allowed_updates to receive these
	// updates.
	ChatMember *ChatMemberUpdated `json:"chat_member,omitempty"` // Since: Bot API 5.1
	// ChatJoinRequest Optional. A request to join the chat has been sent. The bot must have the
	// can_invite_users administrator right in the chat to receive these updates.
	ChatJoinRequest *ChatJoinRequest `json:"chat_join_request,omitempty"` // Since: Bot API 5.4
	// ChatBoost Optional. A chat boost was added or changed. The bot must be an administrator in the chat to
	// receive these updates.
	ChatBoost *ChatBoostUpdated `json:"chat_boost,omitempty"` // Since: Bot API 7.0
	// RemovedChatBoost Optional. A boost was removed from a chat. The bot must be an administrator in the chat
	// to receive these updates.
	RemovedChatBoost *ChatBoostRemoved `json:"removed_chat_boost,omitempty"` // Since: Bot API 7.0

	// ManagedBot Optional. A new bot was created to be managed by the bot, or token or owner of a managed bot
	// was changed
	ManagedBot *ManagedBotUpdated `json:"managed_bot,omitempty"` // Since: Bot API 9.6
	// Subscription contains a bot subscription update.
	Subscription *BotSubscriptionUpdated `json:"subscription,omitempty"` // Since: Bot API 10.2
}

// 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
	if err := json.Unmarshal(data, &aux); err != nil {
		return err
	}

	*u = Update(aux)

	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.GuestMessage != nil:
		u.Type = UpdateTypeGuestMessage
	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
	case u.Subscription != nil:
		u.Type = UpdateTypeSubscription
	default:
		u.Type = UpdateTypeUnknown
	}

	return nil
}

// WebhookInfo describes the current webhook status.
// Since: Bot API 2.2
// See https://core.telegram.org/bots/api#webhookinfo
type WebhookInfo struct {
	// URL Webhook URL, may be empty if webhook is not set up
	URL string `json:"url"`
	// HasCustomCertificate True, if a custom certificate was provided for webhook certificate checks
	HasCustomCertificate bool `json:"has_custom_certificate"`
	// PendingUpdateCount Number of updates awaiting delivery
	PendingUpdateCount int `json:"pending_update_count"`
	// IPAddress Optional. Currently used webhook IP address
	IPAddress string `json:"ip_address,omitempty"`
	// LastErrorDate Optional. Unix time for the most recent error that happened when trying to deliver an
	// update via webhook
	LastErrorDate int `json:"last_error_date,omitempty"`
	// LastErrorMessage Optional. Error message in human-readable format for the most recent error that happened
	// when trying to deliver an update via webhook
	LastErrorMessage string `json:"last_error_message,omitempty"`
	// LastSynchronizationErrorDate Optional. Unix time of the most recent error that happened when trying to
	// synchronize available updates with Telegram datacenters
	LastSynchronizationErrorDate int `json:"last_synchronization_error_date,omitempty"`
	// MaxConnections Optional. The maximum allowed number of simultaneous HTTPS connections to the webhook for
	// update delivery
	MaxConnections int `json:"max_connections,omitempty"`
	// AllowedUpdates Optional. A list of update types the bot is subscribed to. Defaults to all update types
	// except chat_member, message_reaction, and message_reaction_count.
	AllowedUpdates []string `json:"allowed_updates,omitempty"`
}

// ProximityAlertTriggered represents the content of a service message sent when a user triggers a proximity alert.
// Since: Bot API 5.0
type ProximityAlertTriggered struct {
	// Traveler User that triggered the alert
	Traveler User `json:"traveler"`
	// Watcher User that set the alert
	Watcher User `json:"watcher"`
	// Distance The distance between the users
	Distance int `json:"distance"`
}

// InlineQuery represents an incoming inline query.
// Since: Bot API 1.7
// See https://core.telegram.org/bots/api#inlinequery
type InlineQuery struct {
	// ID Unique identifier for this query
	ID string `json:"id"`
	// From Sender
	From User `json:"from"`
	// Query Text of the query (up to 256 characters)
	Query string `json:"query"`
	// Offset Offset of the results to be returned, can be controlled by the bot
	Offset string `json:"offset"`
	// ChatType Optional. Type of the chat from which the inline query was sent. Can be either “sender” for
	// a private chat with the inline query sender, “private”, “group”, “supergroup”, or
	// “channel”. The chat type should be always known for requests sent from official clients and most
	// third-party clients, unless the request was sent from a secret chat.
	ChatType *ChatType `json:"chat_type,omitempty"`
	// Location Optional. Sender location, only for bots that request user location
	Location *Location `json:"location,omitempty"`
}

// ChosenInlineResult represents a result of an inline query that was chosen by the user.
// Since: Bot API 1.8
// See https://core.telegram.org/bots/api#choseninlineresult
type ChosenInlineResult struct {
	// ResultID The unique identifier for the result that was chosen
	ResultID string `json:"result_id"`
	// From The user that chose the result
	From User `json:"from"`
	// Location Optional. Sender location, only for bots that require user location
	Location *Location `json:"location,omitempty"`
	// InlineMessageID Optional. Identifier of the sent inline message. Available only if there is an inline
	// keyboard attached to the message. Will be also received in callback queries and can be used to edit the
	// message.
	InlineMessageID string `json:"inline_message_id"`
	// Query The query that was used to obtain the result
	Query string `json:"query"`
}

// File represents a file ready to be downloaded.
// Since: Bot API 1.0
// See https://core.telegram.org/bots/api#file
type File struct {
	// FileID Identifier for this file, which can be used to download or reuse the file
	FileID string `json:"file_id"`
	// FileUniqueID Unique identifier for this file, which is supposed to be the same over time and for
	// different bots. Can't be used to download or reuse the file.
	FileUniqueID string `json:"file_unique_id"`
	// FileSize Optional. File size in bytes. It can be bigger than 2^31 and some programming languages may have
	// difficulty/silent defects in interpreting it. But it has at most 52 significant bits, so a signed 64-bit
	// integer or double-precision float type are safe for storing this value.
	FileSize int64 `json:"file_size,omitempty"`
	// FilePath Optional. File path. Use https://api.telegram.org/file/bot<token>/<file_path> to get the file.
	FilePath string `json:"file_path,omitempty"`
}

// ChatMemberUpdated represents changes in the status of a chat member.
// Since: Bot API 5.1
// See https://core.telegram.org/bots/api#chatmemberupdated
type ChatMemberUpdated struct {
	// Chat Chat the user belongs to
	Chat Chat `json:"chat"`
	// From Performer of the action, which resulted in the change
	From User `json:"from"`
	// Date Date the change was done in Unix time
	Date int64 `json:"date"`
	// OldChatMember Previous information about the chat member
	OldChatMember ChatMember `json:"old_chat_member"`
	// NewChatMember New information about the chat member
	NewChatMember ChatMember `json:"new_chat_member"`
	// InviteLink Optional. Chat invite link, which was used by the user to join the chat; for joining by invite
	// link events only
	InviteLink *ChatInviteLink `json:"invite_link,omitempty"`
	// ViaJoinRequest Optional. True, if the user joined the chat after sending a direct join request without
	// using an invite link and being approved by an administrator
	ViaJoinRequest *bool `json:"via_join_request,omitempty"`
	// ViaChatFolderInviteLink Optional. True, if the user joined the chat via a chat folder invite link
	ViaChatFolderInviteLink *bool `json:"via_chat_folder_invite_link,omitempty"`
}

// ChatJoinRequest represents a join request sent to a chat.
// Since: Bot API 5.4
// See https://core.telegram.org/bots/api#chatjoinrequest
type ChatJoinRequest struct {
	// Chat Chat to which the request was sent
	Chat Chat `json:"chat"`
	// From User that sent the join request
	From User `json:"from"`
	// UserChatID Identifier of a private chat with the user who sent the join request. This number may have
	// more than 32 significant bits and some programming languages may have difficulty/silent defects in
	// interpreting it. But it has at most 52 significant bits, so a 64-bit integer or double-precision float
	// type are safe for storing this identifier. The bot can use this identifier for 5 minutes to send messages
	// until the join request is processed, assuming no other administrator contacted the user.
	UserChatID int64 `json:"user_chat_id"`
	// Date Date the request was sent in Unix time
	Date int64 `json:"date"`
	// Bio Optional. Bio of the user
	Bio *string `json:"bio,omitempty"`
	// InviteLink Optional. Chat invite link that was used by the user to send the join request
	InviteLink *ChatInviteLink `json:"invite_link,omitempty"`

	// QueryID identifies the join request query; present only for bots
	// assigned to process join requests. When set, the bot must call
	// SendChatJoinRequestWebApp or AnswerChatJoinRequestQuery within 10 seconds.
	QueryID *string `json:"query_id,omitempty"` // Since: Bot API 10.1
}

// Location represents a point on the map.
// Since: Bot API 1.0
// See https://core.telegram.org/bots/api#location
type Location struct {
	// Latitude Latitude as defined by the sender
	Latitude float64 `json:"latitude"`
	// Longitude Longitude as defined by the sender
	Longitude float64 `json:"longitude"`
	// HorizontalAccuracy Optional. The radius of uncertainty for the location, measured in meters; 0-1500
	HorizontalAccuracy float64 `json:"horizontal_accuracy"`
	// LivePeriod Optional. Time relative to the message sending date, during which the location can be updated;
	// in seconds. For active live locations only.
	LivePeriod int `json:"live_period"`
	// Heading Optional. The direction in which user is moving, in degrees; 1-360. For active live locations
	// only.
	Heading int `json:"heading"`
	// ProximityAlertRadius Optional. The maximum distance for proximity alerts about approaching another chat
	// member, in meters. For sent live locations only.
	ProximityAlertRadius int `json:"proximity_alert_radius"`
}

// LocationAddress represents a human-readable address of a location.
// Since: Bot API 8.0
type LocationAddress struct {
	// CountryCode The two-letter ISO 3166-1 alpha-2 country code of the country where the location is located
	CountryCode string `json:"country_code"`
	// State Optional. State of the location
	State *string `json:"state,omitempty"`
	// City Optional. City of the location
	City *string `json:"city,omitempty"`
	// Street Optional. Street address of the location
	Street *string `json:"street,omitempty"`
}

// Venue represents a venue.
// Since: Bot API 2.0
// See https://core.telegram.org/bots/api#venue
type Venue struct {
	// Location Venue location. Can't be a live location.
	Location Location `json:"location"`
	// Title Name of the venue
	Title string `json:"title"`
	// Address Address of the venue
	Address string `json:"address"`
	// FoursquareID Optional. Foursquare identifier of the venue
	FoursquareID string `json:"foursquare_id,omitempty"`
	// FoursquareType Optional. Foursquare type of the venue. (For example, “arts_entertainment/default”,
	// “arts_entertainment/aquarium” or “food/icecream”.)
	FoursquareType string `json:"foursquare_type,omitempty"`
	// GooglePlaceID Optional. Google Places identifier of the venue
	GooglePlaceID string `json:"google_place_id,omitempty"`
	// GooglePlaceType Optional. Google Places type of the venue. (See supported types.)
	GooglePlaceType string `json:"google_place_type,omitempty"`
}

// WebAppInfo contains information about a Web App.
// Since: Bot API 6.0
// See https://core.telegram.org/bots/api#webappinfo
type WebAppInfo struct {
	// URL An HTTPS URL of a Web App to be opened with additional data as specified in Initializing Web Apps
	URL string `json:"url"`
}

// WebAppData represents data sent from a Web App to the bot.
// Since: Bot API 6.0
type WebAppData struct {
	// Data The data. Be aware that a bad client can send arbitrary data in this field.
	Data string `json:"data"`
	// ButtonText Text of the web_app keyboard button from which the Web App was opened. Be aware that a bad
	// client can send arbitrary data in this field.
	ButtonText string `json:"button_text"`
}

// StarAmount represents an amount of Telegram Stars.
// Since: Bot API 7.5
type StarAmount struct {
	// Amount Integer amount of Telegram Stars, rounded to 0; can be negative
	Amount int `json:"amount"`
	// NanostarAmount Optional. The number of 1/1000000000 shares of Telegram Stars; from -999999999 to
	// 999999999; can be negative if and only if amount is non-positive
	NanostarAmount int `json:"nanostar_amount"`
}

// AcceptedGiftTypes represents the types of gifts accepted by a user or chat.
// Since: Bot API 9.0
type AcceptedGiftTypes struct {
	// UnlimitedGifts True, if unlimited regular gifts are accepted
	UnlimitedGifts bool `json:"unlimited_gifts"`
	// LimitedGifts True, if limited regular gifts are accepted
	LimitedGifts bool `json:"limited_gifts"`
	// UniqueGifts True, if unique gifts or gifts that can be upgraded to unique for free are accepted
	UniqueGifts bool `json:"unique_gifts"`
	// PremiumSubscription True, if a Telegram Premium subscription is accepted
	PremiumSubscription bool `json:"premium_subscription"`
	// GiftsFromChannels True, if transfers of unique gifts from channels are accepted
	GiftsFromChannels bool `json:"gifts_from_channels"`
}

// GiftBackground represents the background of a gift.
// Since: Bot API 9.0
type GiftBackground struct {
	// CenterColor Center color of the background in RGB format
	CenterColor int `json:"center_color"`
	// EdgeColor Edge color of the background in RGB format
	EdgeColor int `json:"edge_color"`
	// TextColor Text color of the background in RGB format
	TextColor int `json:"text_color"`
}

// Gift represents a gift that can be sent.
// Since: Bot API 9.0
type Gift struct {
	// ID Unique identifier of the gift
	ID string `json:"id"`
	// Sticker The sticker that represents the gift
	Sticker Sticker `json:"sticker"`
	// StarCount The number of Telegram Stars that must be paid to send the sticker
	StarCount int `json:"star_count"`
	// UpdateStarCount is the number of Stars required to upgrade the gift.
	UpdateStarCount *int `json:"update_star_count,omitempty"`
	// IsPremium Optional. True, if the gift can only be purchased by Telegram Premium subscribers
	IsPremium *bool `json:"is_premium,omitempty"`
	// HasColors Optional. True, if the gift can be used (after being upgraded) to customize a user's appearance
	HasColors *bool `json:"has_colors,omitempty"`
	// TotalCount Optional. The total number of gifts of this type that can be sent by all users; for limited
	// gifts only
	TotalCount *int `json:"total_count,omitempty"`
	// RemainingCount Optional. The number of remaining gifts of this type that can be sent by all users; for
	// limited gifts only
	RemainingCount *int `json:"remaining_count,omitempty"`
	// PersonalTotalCount Optional. The total number of gifts of this type that can be sent by the bot; for
	// limited gifts only
	PersonalTotalCount *int `json:"personal_total_count,omitempty"`
	// PersonalRemainingCount Optional. The number of remaining gifts of this type that can be sent by the bot;
	// for limited gifts only
	PersonalRemainingCount *int `json:"personal_remaining_count,omitempty"`
	// Background Optional. Background of the gift
	Background *GiftBackground `json:"background,omitempty"`
	// UniqueGiftVariantColor identifies the color used by unique variants of the gift.
	UniqueGiftVariantColor *int `json:"unique_gift_variant_color,omitempty"`
	// PublisherChat Optional. Information about the chat that published the gift
	PublisherChat *Chat `json:"publisher_chat,omitempty"`
}

// Gifts represents a list of gifts.
// Since: Bot API 9.0
type Gifts struct {
	// Gifts The list of gifts
	Gifts []Gift `json:"gifts"`
}

// UniqueGiftModel describes the model component of a unique gift.
// Since: Bot API 9.0
type UniqueGiftModel struct {
	// Name Name of the model
	Name string `json:"name"`
	// Sticker The sticker that represents the unique gift
	Sticker Sticker `json:"sticker"`
	// RarityPerMille The number of unique gifts that receive this model for every 1000 gift upgrades. Always 0
	// for crafted gifts.
	RarityPerMille int `json:"rarity_per_mille"`
	// Rarity Optional. Rarity of the model if it is a crafted model. Currently, can be “uncommon”,
	// “rare”, “epic”, or “legendary”.
	Rarity string `json:"rarity,omitempty"`
}

// UniqueGiftSymbol describes the symbol component of a unique gift.
// Since: Bot API 9.0
type UniqueGiftSymbol struct {
	// Name Name of the symbol
	Name string `json:"name"`
	// Sticker The sticker that represents the unique gift
	Sticker Sticker `json:"sticker"`
	// RarityPerMille The number of unique gifts that receive this model for every 1000 gifts upgraded
	RarityPerMille int `json:"rarity_per_mille"`
}

// UniqueGiftBackdropColors describes the colors of a unique gift backdrop.
// Since: Bot API 9.0
type UniqueGiftBackdropColors struct {
	// CenterColor The color in the center of the backdrop in RGB format
	CenterColor int `json:"center_color"`
	// EdgeColor The color on the edges of the backdrop in RGB format
	EdgeColor int `json:"edge_color"`
	// SymbolColor The color to be applied to the symbol in RGB format
	SymbolColor int `json:"symbol_color"`
	// TextColor The color for the text on the backdrop in RGB format
	TextColor int `json:"text_color"`
}

// UniqueGiftBackdrop describes the backdrop of a unique gift.
// Since: Bot API 9.0
type UniqueGiftBackdrop struct {
	// Name Name of the backdrop
	Name string `json:"name"`
	// Colors Colors of the backdrop
	Colors UniqueGiftBackdropColors `json:"colors"`
	// RarityPerMille The number of unique gifts that receive this backdrop for every 1000 gifts upgraded
	RarityPerMille int `json:"rarity_per_mille"`
}

// UniqueGiftColors represents color information for a unique gift.
// Since: Bot API 9.3
type UniqueGiftColors struct {
	// ModelCustomEmojiID Custom emoji identifier of the unique gift's model
	ModelCustomEmojiID string `json:"model_custom_emoji_id"`
	// SymbolCustomEmojiID Custom emoji identifier of the unique gift's symbol
	SymbolCustomEmojiID string `json:"symbol_custom_emoji_id"`
	// LightThemeMainColor Main color used in light themes; RGB format
	LightThemeMainColor int `json:"light_theme_main_color"`
	// LightThemeOtherColors List of 1-3 additional colors used in light themes; RGB format
	LightThemeOtherColors []int `json:"light_theme_other_colors"`
	// DarkThemeMainColor Main color used in dark themes; RGB format
	DarkThemeMainColor int `json:"dark_theme_main_color"`
	// DarkThemeOtherColors List of 1-3 additional colors used in dark themes; RGB format
	DarkThemeOtherColors []int `json:"dark_theme_other_colors"`
}

// UniqueGift represents a unique gift.
// Since: Bot API 9.0
type UniqueGift struct {
	// GiftID Identifier of the regular gift from which the gift was upgraded
	GiftID string `json:"gift_id"`
	// BaseName Human-readable name of the regular gift from which this unique gift was upgraded
	BaseName string `json:"base_name"`
	// Name Unique name of the gift. This name can be used in https://t.me/nft/... links and story areas.
	Name string `json:"name"`
	// Number Unique number of the upgraded gift among gifts upgraded from the same regular gift
	Number int `json:"number"`
	// Model Model of the gift
	Model UniqueGiftModel `json:"model"`
	// Symbol Symbol of the gift
	Symbol UniqueGiftSymbol `json:"symbol"`
	// Backdrop Backdrop of the gift
	Backdrop UniqueGiftBackdrop `json:"backdrop"`

	// IsPremium Optional. True, if the original regular gift was exclusively purchaseable by Telegram Premium
	// subscribers
	IsPremium bool `json:"is_premium,omitempty"`
	// IsBurned Optional. True, if the gift was used to craft another gift and isn't available anymore
	IsBurned bool `json:"is_burned,omitempty"`
	// IsFromBlockchain Optional. True, if the gift is assigned from the TON blockchain and can't be resold or
	// transferred in Telegram
	IsFromBlockchain bool `json:"is_from_blockchain,omitempty"`
	// Colors Optional. The color scheme that can be used by the gift's owner for the chat's name, replies to
	// messages and link previews; for business account gifts and gifts that are currently on sale only
	Colors *UniqueGiftColors `json:"colors,omitempty"`
	// PublisherChat Optional. Information about the chat that published the gift
	PublisherChat *Chat `json:"publisher_chat,omitempty"`
}

// GiftInfo contains information about a received gift.
// Since: Bot API 9.0
type GiftInfo struct {
	// Gift Information about the gift
	Gift Gift `json:"gift"`

	// OwnedGiftID Optional. Unique identifier of the received gift for the bot; only present for gifts received
	// on behalf of business accounts
	OwnedGiftID string `json:"owned_gift_id,omitempty"`
	// ConvertStarCount Optional. Number of Telegram Stars that can be claimed by the receiver by converting the
	// gift; omitted if conversion to Telegram Stars is impossible
	ConvertStarCount int `json:"convert_star_count,omitempty"`
	// PrepaidUpgradeStarCount Optional. Number of Telegram Stars that were prepaid for the ability to upgrade
	// the gift
	PrepaidUpgradeStarCount int `json:"prepaid_upgrade_star_count,omitempty"`
	// IsUpgradeSeparate Optional. True, if the gift's upgrade was purchased after the gift was sent
	IsUpgradeSeparate bool `json:"is_upgrade_separate,omitempty"`
	// CanBeUpgraded Optional. True, if the gift can be upgraded to a unique gift
	CanBeUpgraded bool `json:"can_be_upgraded,omitempty"`
	// Text Optional. Text of the message that was added to the gift
	Text string `json:"text,omitempty"`
	// Entities Optional. Special entities that appear in the text
	Entities []MessageEntity `json:"entities,omitempty"`
	// IsPrivate Optional. True, if the sender and gift text are shown only to the gift receiver; otherwise,
	// everyone will be able to see them
	IsPrivate bool `json:"is_private,omitempty"`
	// UniqueGiftNumber Optional. Unique number reserved for this gift when upgraded. See the number field in
	// UniqueGift.
	UniqueGiftNumber int `json:"unique_gift_number,omitempty"`
}

// UniqueGiftInfo contains information about a received unique gift.
// Since: Bot API 9.0
type UniqueGiftInfo struct {
	// Gift Information about the gift
	Gift UniqueGift `json:"gift"`
	// Origin Origin of the gift. Currently, either “upgrade” for gifts upgraded from regular gifts,
	// “transfer” for gifts transferred from other users or channels, “resale” for gifts bought from
	// other users, “gifted_upgrade” for upgrades purchased after the gift was sent, or “offer” for
	// gifts bought or sold through gift purchase offers.
	Origin string `json:"origin"`
	// LastResaleCurrency Optional. For gifts bought from other users, the currency in which the payment for the
	// gift was done. Currently, one of “XTR” for Telegram Stars or “TON” for TON grams.
	LastResaleCurrency string `json:"last_resale_currency,omitempty"`
	// LastResaleAmount Optional. For gifts bought from other users, the price paid for the gift in either
	// Telegram Stars or nanograms
	LastResaleAmount int `json:"last_resale_amount,omitempty"`
	// OwnedGiftID Optional. Unique identifier of the received gift for the bot; only present for gifts received
	// on behalf of business accounts
	OwnedGiftID string `json:"owned_gift_id,omitempty"`
	// TransferStarCount Optional. Number of Telegram Stars that must be paid to transfer the gift; omitted if
	// the bot cannot transfer the gift
	TransferStarCount int `json:"transfer_star_count,omitempty"`
	// NextTransferDate Optional. Point in time (Unix timestamp) when the gift can be transferred. If it is in
	// the past, then the gift can be transferred now.
	NextTransferDate int `json:"next_transfer_date,omitempty"`
}

// OwnedGiftType represents the type of an owned gift.
// Since: Bot API 9.0
type OwnedGiftType string

const (
	// OwnedGiftRegularType identifies a regular owned gift.
	OwnedGiftRegularType OwnedGiftType = "regular"
	// OwnedGiftUniqueType identifies a unique owned gift.
	OwnedGiftUniqueType OwnedGiftType = "unique"
)

// OwnedGift represents a gift owned by a user or chat.
// Since: Bot API 9.0
type OwnedGift struct {
	// Type identifies the regular or unique owned-gift variant.
	Type OwnedGiftType `json:"type"`
	// OwnedGiftID uniquely identifies a business account's owned gift when available.
	OwnedGiftID string `json:"owned_gift_id,omitempty"`
	// SendDate Date the gift was sent in Unix time
	SendDate int `json:"send_date,omitempty"`
	// IsSaved Optional. True, if the gift is displayed on the account's profile page; for gifts received on
	// behalf of business accounts only
	IsSaved bool `json:"is_saved,omitempty"`

	// Gift contains the regular gift for the regular variant.
	// Fields specific to "regular" type
	Gift Gift `json:"gift"`
	// SenderUser Optional. Sender of the gift if it is a known user
	SenderUser *User `json:"sender_user,omitempty"`
	// Text Optional. Text of the message that was added to the gift
	Text string `json:"text,omitempty"`
	// Entities Optional. Special entities that appear in the text
	Entities []MessageEntity `json:"entities,omitempty"`
	// IsPrivate Optional. True, if the sender and gift text are shown only to the gift receiver; otherwise,
	// everyone will be able to see them
	IsPrivate bool `json:"is_private,omitempty"`
	// CanBeUpgraded Optional. True, if the gift can be upgraded to a unique gift; for gifts received on behalf
	// of business accounts only
	CanBeUpgraded bool `json:"can_be_upgraded,omitempty"`
	// WasRefunded Optional. True, if the gift was refunded and isn't available anymore
	WasRefunded bool `json:"was_refunded,omitempty"`
	// ConvertStarCount Optional. Number of Telegram Stars that can be claimed by the receiver instead of the
	// gift; omitted if the gift cannot be converted to Telegram Stars; for gifts received on behalf of business
	// accounts only
	ConvertStarCount int `json:"convert_star_count,omitempty"`
	// PrepaidUpgradeStarCount Optional. Number of Telegram Stars that were paid for the ability to upgrade the
	// gift
	PrepaidUpgradeStarCount int `json:"prepaid_upgrade_star_count,omitempty"`
	// IsUpgradeSeparate Optional. True, if the gift's upgrade was purchased after the gift was sent; for gifts
	// received on behalf of business accounts only
	IsUpgradeSeparate bool `json:"is_upgrade_separate,omitempty"`
	// UniqueGiftNumber Optional. Unique number reserved for this gift when upgraded. See the number field in
	// UniqueGift.
	UniqueGiftNumber int `json:"unique_gift_number,omitempty"`

	// CanBeTransferred Optional. True, if the gift can be transferred to another owner; for gifts received on
	// behalf of business accounts only
	// Fields specific to "unique" type
	CanBeTransferred bool `json:"can_be_transferred,omitempty"`
	// TransferStarCount Optional. Number of Telegram Stars that must be paid to transfer the gift; omitted if
	// the bot cannot transfer the gift
	TransferStarCount int `json:"transfer_star_count,omitempty"`
	// NextTransferDate Optional. Point in time (Unix timestamp) when the gift can be transferred. If it is in
	// the past, then the gift can be transferred now.
	NextTransferDate int `json:"next_transfer_date,omitempty"`
}

// OwnedGifts represents a list of owned gifts with pagination.
// Since: Bot API 9.0
type OwnedGifts struct {
	// TotalCount The total number of gifts owned by the user or the chat
	TotalCount int `json:"total_count"`
	// Gifts The list of gifts
	Gifts []OwnedGift `json:"gifts"`
	// NextOffset Optional. Offset for the next request. If empty, then there are no more results.
	NextOffset string `json:"next_offset"`
}

// GiveawayCreated represents a service message about a giveaway being created.
// Since: Bot API 7.0
type GiveawayCreated struct {
	// PrizeStarCount Optional. The number of Telegram Stars to be split between giveaway winners; for Telegram
	// Star giveaways only
	PrizeStarCount int `json:"prize_star_count,omitempty"`
}

// Giveaway represents a message about a scheduled giveaway.
// Since: Bot API 7.0
type Giveaway struct {
	// Chats The list of chats which the user must join to participate in the giveaway
	Chats []Chat `json:"chats"`
	// WinnersSelectionDate Point in time (Unix timestamp) when winners of the giveaway will be selected
	WinnersSelectionDate int `json:"winners_selection_date"`
	// WinnerCount The number of users which are supposed to be selected as winners of the giveaway
	WinnerCount int `json:"winner_count"`

	// OnlyNewMembers Optional. True, if only users who join the chats after the giveaway started should be
	// eligible to win
	OnlyNewMembers bool `json:"only_new_members,omitempty"`
	// HasPublicWinners Optional. True, if the list of giveaway winners will be visible to everyone
	HasPublicWinners bool `json:"has_public_winners,omitempty"`
	// PrizeDescription Optional. Description of additional giveaway prize
	PrizeDescription string `json:"prize_description,omitempty"`
	// CountryCodes Optional. A list of two-letter ISO 3166-1 alpha-2 country codes indicating the countries
	// from which eligible users for the giveaway must come. If empty, then all users can participate in the
	// giveaway. Users with a phone number that was bought on Fragment can always participate in giveaways.
	CountryCodes []string `json:"country_codes,omitempty"`
	// PrizeStarCount Optional. The number of Telegram Stars to be split between giveaway winners; for Telegram
	// Star giveaways only
	PrizeStarCount int `json:"prize_star_count,omitempty"`
	// PremiumSubscriptionMonthCount Optional. The number of months the Telegram Premium subscription won from
	// the giveaway will be active for; for Telegram Premium giveaways only
	PremiumSubscriptionMonthCount int `json:"premium_subscription_month_count,omitempty"`
}

// GiveawayWinners represents a message about the completion of a giveaway with public winners.
// Since: Bot API 7.0
type GiveawayWinners struct {
	// Chat The chat that created the giveaway
	Chat Chat `json:"chat"`
	// GiveawayMessageID Identifier of the message with the giveaway in the chat
	GiveawayMessageID int `json:"giveaway_message_id"`
	// WinnersSelectionDate Point in time (Unix timestamp) when winners of the giveaway were selected
	WinnersSelectionDate int `json:"winners_selection_date"`
	// WinnerCount Total number of winners in the giveaway
	WinnerCount int `json:"winner_count"`
	// Winners List of up to 100 winners of the giveaway
	Winners []User `json:"winners"`

	// AdditionalChatCount Optional. The number of other chats the user had to join in order to be eligible for
	// the giveaway
	AdditionalChatCount int `json:"additional_chat_count,omitempty"`
	// PrizeStarCount Optional. The number of Telegram Stars that were split between giveaway winners; for
	// Telegram Star giveaways only
	PrizeStarCount int `json:"prize_star_count,omitempty"`
	// PremiumSubscriptionMonthCount Optional. The number of months the Telegram Premium subscription won from
	// the giveaway will be active for; for Telegram Premium giveaways only
	PremiumSubscriptionMonthCount int `json:"premium_subscription_month_count,omitempty"`
	// UnclaimedPrizeCount Optional. Number of undistributed prizes
	UnclaimedPrizeCount int `json:"unclaimed_prize_count,omitempty"`
	// OnlyNewMembers Optional. True, if only users who had joined the chats after the giveaway started were
	// eligible to win
	OnlyNewMembers bool `json:"only_new_members,omitempty"`
	// WasRefunded Optional. True, if the giveaway was canceled because the payment for it was refunded
	WasRefunded bool `json:"was_refunded,omitempty"`
	// PrizeDescription Optional. Description of additional giveaway prize
	PrizeDescription string `json:"prize_description,omitempty"`
}

// GiveawayCompleted represents a service message about the completion of a giveaway without public winners.
// Since: Bot API 7.0
type GiveawayCompleted struct {
	// WinnerCount Number of winners in the giveaway
	WinnerCount int `json:"winner_count"`
	// UnclaimedPrizeCount Optional. Number of undistributed prizes
	UnclaimedPrizeCount int `json:"unclaimed_prize_count,omitempty"`
	// GiveawayMessage Optional. Message with the giveaway that was completed, if it wasn't deleted
	GiveawayMessage *Message `json:"giveaway_message,omitempty"`
	// IsStarGiveaway Optional. True, if the giveaway is a Telegram Star giveaway. Otherwise, currently, the
	// giveaway is a Telegram Premium giveaway.
	IsStarGiveaway bool `json:"is_star_giveaway,omitempty"`
}

// WriteAccessAllowed represents a service message about a user allowing a bot to write messages.
// Since: Bot API 6.4
type WriteAccessAllowed struct {
	// FromRequest Optional. True, if the access was granted after the user accepted an explicit request from a
	// Web App sent by the method requestWriteAccess
	FromRequest bool `json:"from_request,omitempty"`
	// WebAppName Optional. Name of the Web App, if the access was granted when the Web App was launched from a
	// link
	WebAppName string `json:"web_app_name,omitempty"`
	// FromAttachmentMenu Optional. True, if the access was granted when the bot was added to the attachment or
	// side menu
	FromAttachmentMenu bool `json:"from_attachment_menu,omitempty"`
}

// BackgroundFillType represents the type of a background fill.
// Since: Bot API 7.5
type BackgroundFillType string

const (
	// BackgroundFillSolidType identifies a solid fill.
	BackgroundFillSolidType BackgroundFillType = "solid"
	// BackgroundFillGradientType identifies a two-color gradient.
	BackgroundFillGradientType BackgroundFillType = "gradient"
	// BackgroundFillFreeformGradientType identifies a freeform gradient.
	BackgroundFillFreeformGradientType BackgroundFillType = "freeform_gradient"
)

// BackgroundFill describes the way a background is filled.
// Since: Bot API 7.5
type BackgroundFill struct {
	// Type identifies the concrete fill variant.
	Type BackgroundFillType `json:"type"`

	// Color The color of the background fill in the RGB24 format
	Color int `json:"color,omitempty"`

	// TopColor Top color of the gradient in the RGB24 format
	TopColor int `json:"top_color,omitempty"`
	// BottomColor Bottom color of the gradient in the RGB24 format
	BottomColor int `json:"bottom_color,omitempty"`
	// RotationAngle Clockwise rotation angle of the background fill in degrees; 0-359
	RotationAngle int `json:"rotation_angle,omitempty"`

	// Colors A list of the 3 or 4 base colors that are used to generate the freeform gradient in the RGB24
	// format
	Colors []int `json:"colors,omitempty"`
}

// BackgroundTypeType represents the type of a chat background.
// Since: Bot API 7.5
type BackgroundTypeType string

const (
	// BackgroundTypeFillType identifies a generated fill.
	BackgroundTypeFillType BackgroundTypeType = "fill"
	// BackgroundTypeWallpaperType identifies a wallpaper.
	BackgroundTypeWallpaperType BackgroundTypeType = "wallpaper"
	// BackgroundTypePatternType identifies a pattern.
	BackgroundTypePatternType BackgroundTypeType = "pattern"
	// BackgroundTypeChatThemeType identifies a chat theme.
	BackgroundTypeChatThemeType BackgroundTypeType = "chat_theme"
)

// BackgroundType describes the type of a background.
// Since: Bot API 7.5
type BackgroundType struct {
	// Type identifies the concrete background variant.
	Type BackgroundTypeType `json:"type"`

	// Fill contains the background fill for fill and pattern variants.
	Fill *BackgroundFill `json:"fill,omitempty"`
	// DarkThemeDimming Dimming of the background in dark themes, as a percentage; 0-100
	DarkThemeDimming int `json:"dark_theme_dimming,omitempty"`

	// Document contains the wallpaper or pattern document for document-backed variants.
	Document *Document `json:"document,omitempty"`
	// IsBlurred Optional. True, if the wallpaper is downscaled to fit in a 450x450 square and then box-blurred
	// with radius 12
	IsBlurred bool `json:"is_blurred,omitempty"`
	// IsMoving Optional. True, if the background moves slightly when the device is tilted
	IsMoving bool `json:"is_moving,omitempty"`

	// Intensity Intensity of the pattern when it is shown above the filled background; 0-100
	Intensity int `json:"intensity,omitempty"`
	// IsInverted Optional. True, if the background fill must be applied only to the pattern itself. All other
	// pixels are black in this case. For dark themes only.
	IsInverted bool `json:"is_inverted,omitempty"`

	// ThemeName Name of the chat theme, which is usually an emoji
	ThemeName string `json:"theme_name,omitempty"`
}

// BotSubscriptionState identifies the state of a user's subscription to the bot.
//
// Since: Bot API 10.2
type BotSubscriptionState string

const (
	// BotSubscriptionCanceledState indicates that the user canceled the subscription.
	BotSubscriptionCanceledState BotSubscriptionState = "canceled"
	// BotSubscriptionActiveState indicates that the user re-enabled the subscription.
	BotSubscriptionActiveState BotSubscriptionState = "active"
	// BotSubscriptionFailedState indicates that subscription payment failed.
	BotSubscriptionFailedState BotSubscriptionState = "failed"
)

// BotSubscriptionUpdated describes a change to a user's payment subscription to the bot.
//
// Since: Bot API 10.2
type BotSubscriptionUpdated struct {
	// User contains the user associated with the value.
	User User `json:"user"`
	// InvoicePayload contains the bot-defined subscription invoice payload.
	InvoicePayload string `json:"invoice_payload"`
	// State is the new subscription state.
	State BotSubscriptionState `json:"state"`
}