package handlers

import (
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"

	photosSvc "rmser/internal/services/photos"
)

type PhotosHandler struct {
	service *photosSvc.Service
}

func NewPhotosHandler(service *photosSvc.Service) *PhotosHandler {
	return &PhotosHandler{service: service}
}

// GetPhotos GET /api/photos
func (h *PhotosHandler) GetPhotos(c *gin.Context) {
	userID := c.MustGet("userID").(uuid.UUID)

	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	limit, _ := strconv.Atoi(c.DefaultQuery("limit", "20"))

	photos, total, err := h.service.GetPhotosForServer(userID, page, limit)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"photos": photos,
		"total":  total,
		"page":   page,
		"limit":  limit,
	})
}

// DeletePhoto DELETE /api/photos/:id
func (h *PhotosHandler) DeletePhoto(c *gin.Context) {
	userID := c.MustGet("userID").(uuid.UUID)
	photoID, err := uuid.Parse(c.Param("id"))
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
		return
	}

	forceDeleteDraft := c.Query("force") == "true"

	err = h.service.DeletePhoto(userID, photoID, forceDeleteDraft)
	if err != nil {
		if err == photosSvc.ErrPhotoHasDraft {
			// Специальный статус, чтобы фронт показал Confirm
			c.JSON(http.StatusConflict, gin.H{
				"error":            err.Error(),
				"requires_confirm": true,
			})
			return
		}
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, gin.H{"status": "deleted"})
}