package controller

import (
	"butterfliu/internal/service"
	"net/http"
	"strconv"

	"github.com/go-chi/chi/v5"
)

type SongController struct {
	service *service.SongService
}

func NewSongController(service *service.SongService) *SongController {
	return &SongController{service: service}
}

func (c *SongController) GetAllWithDetails(w http.ResponseWriter, r *http.Request) {
	songs, err := c.service.GetAllWithDetails()
	if err != nil {
		jsonError(w, err.Error(), http.StatusInternalServerError)
		return
	}
	jsonResponse(w, songs, http.StatusOK)
}

func (c *SongController) GetByIDWithDetails(w http.ResponseWriter, r *http.Request) {
	paramID := chi.URLParam(r, "id")
	id, err := strconv.Atoi(paramID)
	if err != nil {
		http.Error(w, "无效的歌曲 ID", http.StatusBadRequest)
		return
	}
	song, err := c.service.GetByIDWithDetails(id)
	if err != nil {
		jsonError(w, err.Error(), http.StatusInternalServerError)
		return
	}
	jsonResponse(w, song, http.StatusOK)
}

func (c *SongController) Stream(w http.ResponseWriter, r *http.Request) {
	paramID := chi.URLParam(r, "id")
	id, err := strconv.Atoi(paramID)
	if err != nil {
		http.Error(w, "无效的歌曲 ID", http.StatusBadRequest)
		return
	}

	mediaFile, err := c.service.GetMediaFile(id)
	if err != nil {
		http.Error(w, "未找到该媒体文件", http.StatusNotFound)
		return
	}

	http.ServeFile(w, r, mediaFile.Path)
}

func (c *SongController) Cover(w http.ResponseWriter, r *http.Request) {
	paramID := chi.URLParam(r, "id")
	id, err := strconv.Atoi(paramID)
	if err != nil {
		http.Error(w, "无效的歌曲 ID", http.StatusBadRequest)
		return
	}
	coverPath, err := c.service.GetCover(id)
	if err != nil {
		http.Error(w, "获取封面异常", http.StatusNotFound)
		return
	}
	http.ServeFile(w, r, coverPath)
}