实现音频服务api

internal/controller/song.go

@@ -0,0 +1,44 @@
+package controller
+
+import (
+	"butterfliu/internal/service"
+	"encoding/json"
+	"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 {
+		json.NewEncoder(w).Encode(map[string]string{"error": err.Error()})
+		return
+	}
+	json.NewEncoder(w).Encode(songs)
+}
+
+func (c *SongController) Stream(w http.ResponseWriter, r *http.Request) {
+	parmaID := chi.URLParam(r, "id")
+	id, err := strconv.Atoi(parmaID)
+	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)
+}