package controllers

import (
	"strconv"

	"abdanhafidz.com/go-boilerplate/services"
	"github.com/gin-gonic/gin"
)

type FavoriteController interface {
	ToggleClassFavorite(ctx *gin.Context)
	ToggleEventFavorite(ctx *gin.Context)
	GetFavoriteClasses(ctx *gin.Context)
	GetFavoriteEvents(ctx *gin.Context)
}

type favoriteController struct {
	favoriteService services.FavoriteService
}

func NewFavoriteController(favoriteService services.FavoriteService) FavoriteController {
	return &favoriteController{favoriteService: favoriteService}
}

// ToggleClassFavorite godoc
// @Summary      Toggle Class Favorite
// @Description  Adds the class to favorites if not already favorited, removes it if already favorited.
// @Tags         Classes
// @Produce      json
// @Param        class_id  path      string  true  "Class ID"
// @Success      200       {object}  map[string]interface{}
// @Failure      400       {object}  dto.ErrorResponse
// @Failure      401       {object}  dto.ErrorResponse
// @Security     BearerAuth
// @Router       /api/v1/classes/{class_id}/favorite [put]
func (c *favoriteController) ToggleClassFavorite(ctx *gin.Context) {
	classID := ctx.Param("class_id")
	userID := ParseUserId(ctx)
	if userID == "" {
		return
	}

	favorited, err := c.favoriteService.ToggleClassFavorite(ctx.Request.Context(), userID, classID)
	if err != nil {
		ResponseJSON(ctx, "", "", err)
		return
	}

	ctx.JSON(200, gin.H{"favorited": favorited})
}

// ToggleEventFavorite godoc
// @Summary      Toggle Event Favorite
// @Description  Adds the event to favorites if not already favorited, removes it if already favorited.
// @Tags         Events
// @Produce      json
// @Param        event_id  path      string  true  "Event ID"
// @Success      200       {object}  map[string]interface{}
// @Failure      400       {object}  dto.ErrorResponse
// @Failure      401       {object}  dto.ErrorResponse
// @Security     BearerAuth
// @Router       /api/v1/events/{event_id}/favorite [put]
func (c *favoriteController) ToggleEventFavorite(ctx *gin.Context) {
	eventID := ctx.Param("event_id")
	userID := ParseUserId(ctx)
	if userID == "" {
		return
	}

	favorited, err := c.favoriteService.ToggleEventFavorite(ctx.Request.Context(), userID, eventID)
	if err != nil {
		ResponseJSON(ctx, "", "", err)
		return
	}

	ctx.JSON(200, gin.H{"favorited": favorited})
}

// GetFavoriteClasses godoc
// @Summary      Get favorite classes
// @Description  Returns a paginated list of classes favorited by the authenticated user. Response structure matches /api/v1/classes/search.
// @Tags         Classes
// @Produce      json
// @Param        page   query  int  false  "Page (default: 1)"
// @Param        limit  query  int  false  "Limit (default: 10)"
// @Success      200    {object}  dto.SearchClassesResponse
// @Failure      401    {object}  dto.ErrorResponse
// @Security     BearerAuth
// @Router       /api/v1/classes/favorites [get]
func (c *favoriteController) GetFavoriteClasses(ctx *gin.Context) {
	userID := ParseUserId(ctx)
	if userID == "" {
		return
	}
	page, _ := strconv.Atoi(ctx.DefaultQuery("page", "1"))
	limit, _ := strconv.Atoi(ctx.DefaultQuery("limit", "10"))

	res, err := c.favoriteService.GetFavoriteClasses(ctx.Request.Context(), userID, page, limit)
	ResponseJSON(ctx, "", res, err)
}

// GetFavoriteEvents godoc
// @Summary      Get favorite events
// @Description  Returns a paginated list of events favorited by the authenticated user. Response structure matches /api/v1/events.
// @Tags         Events
// @Produce      json
// @Param        page   query  int  false  "Page (default: 1)"
// @Param        limit  query  int  false  "Limit (default: 10)"
// @Success      200    {object}  dto.EventListResponse
// @Failure      401    {object}  dto.ErrorResponse
// @Security     BearerAuth
// @Router       /api/v1/events/favorites [get]
func (c *favoriteController) GetFavoriteEvents(ctx *gin.Context) {
	userID := ParseUserId(ctx)
	if userID == "" {
		return
	}
	page, _ := strconv.Atoi(ctx.DefaultQuery("page", "1"))
	limit, _ := strconv.Atoi(ctx.DefaultQuery("limit", "10"))

	res, err := c.favoriteService.GetFavoriteEvents(ctx.Request.Context(), userID, page, limit)
	ResponseJSON(ctx, "", res, err)
}