package routes

import (
	"backend/database"
	"database/sql"
	"encoding/json"
	"errors"
	"github.com/go-chi/chi/v5"
	"net/http"
)

func RegisterCharactersRoutes(r chi.Router) {
	r.Route("/", func(s chi.Router) {
		s.Get("/", getCharacters)
		s.Post("/", createCharacter)
	})
	r.Route("/{id:[0-9]+}", func(s chi.Router) {
		s.Get("/", getCharacter)
		s.Put("/", updateCharacter)
		s.Delete("/", deleteCharacter)
	})
	r.Get("/characters/{id:[0-9]+}/novels", getCharacterNovels)
}

func getCharacters(w http.ResponseWriter, r *http.Request) {
	characters, err := database.FetchCharacters()
	Response(w, err, characters)
}
func createCharacter(w http.ResponseWriter, r *http.Request) {
	Response(w, nil, "todo")
}

func getCharacter(w http.ResponseWriter, r *http.Request) {
	id := IURLParam(r, "id")
	char, err := database.FetchCharacter(id)
	Response(w, err, char)
}
func updateCharacter(w http.ResponseWriter, r *http.Request) {
	user, err := GetCurrentUser(r)
	if err != nil {
		NoAccess.Ferror(w)
		return
	}

	hasPerm := hasPermission(user, "characters")
	if !hasPerm {
		NoAccess.Ferror(w)
		return
	}

	body, err := ReadBody(r)
	if err != nil {
		Error(w, err)
		return
	}
	character := new(database.Character)
	err = json.Unmarshal(body, character)
	if err != nil {
		Error(w, err)
		return
	}

	character, err = database.UpdateCharacter(character)
	Response(w, err, character)
}
func deleteCharacter(w http.ResponseWriter, r *http.Request) {
	id := IURLParam(r, "id")

	user, err := GetCurrentUser(r)
	if err != nil {
		NoAccess.Ferror(w)
		return
	}

	hasPerm := hasPermission(user, "characters")
	if !hasPerm {
		NoAccess.Ferror(w)
		return
	}

	err = database.DeleteCharacter(id)
	if errors.Is(err, sql.ErrNoRows) {
		NotFound.Ferror(w)
		return
	}
	Response(w, err, "ok")
}

func getCharacterNovels(w http.ResponseWriter, r *http.Request) {
	id := IURLParam(r, "id")
	novels, err := database.FetchCharacterNovels(id)
	Response(w, err, novels)
}