// Package handlers
package handlers

import (
	"encoding/json"
	"net/http"

	"gogs.fxtmmsk.ru/foxtime/photoplaces/backend/internal/middleware"
	"gogs.fxtmmsk.ru/foxtime/photoplaces/backend/internal/models"
	"gogs.fxtmmsk.ru/foxtime/photoplaces/backend/internal/repository"
	"gogs.fxtmmsk.ru/foxtime/photoplaces/backend/internal/validator"
)

type ReviewHandler struct {
	reviewRepo *repository.ReviewRepo
}

func NewReviewHandler(reviewRepo *repository.ReviewRepo) *ReviewHandler {
	return &ReviewHandler{reviewRepo: reviewRepo}
}

func (h *ReviewHandler) List(w http.ResponseWriter, r *http.Request) {
	targetType := r.URL.Query().Get("target_type")
	targetID := r.URL.Query().Get("target_id")

	if targetType == "" || targetID == "" {
		writeError(w, http.StatusBadRequest, "target_type and target_id are required", nil)
		return
	}

	reviews, err := h.reviewRepo.List(r.Context(), targetType, targetID)
	if err != nil {
		writeError(w, http.StatusInternalServerError, "failed to list reviews", err)
		return
	}

	if reviews == nil {
		reviews = []*models.Review{}
	}

	writeJSON(w, http.StatusOK, map[string]interface{}{"data": reviews})
}

type createReviewRequest struct {
	TargetType string  `json:"target_type" validate:"required,oneof=place service"`
	TargetID   string  `json:"target_id" validate:"required,uuid"`
	Rating     int     `json:"rating" validate:"required,min=1,max=5"`
	Text       *string `json:"text" validate:"omitempty,max=5000"`
}

func (h *ReviewHandler) Create(w http.ResponseWriter, r *http.Request) {
	userID := middleware.GetUserID(r.Context())

	r.Body = http.MaxBytesReader(w, r.Body, maxRequestBodySize)
	var req createReviewRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		writeError(w, http.StatusBadRequest, "invalid request body", err)
		return
	}

	if err := validator.Validate(req); err != nil {
		writeValidationError(w, err)
		return
	}

	review := &models.Review{
		UserID:     userID,
		TargetType: req.TargetType,
		TargetID:   req.TargetID,
		Rating:     req.Rating,
		Text:       req.Text,
	}

	if err := h.reviewRepo.Create(r.Context(), review); err != nil {
		writeError(w, http.StatusInternalServerError, "failed to create review", err)
		return
	}

	writeJSON(w, http.StatusCreated, review)
}