添加详情接口

internal/controller/library.go

@@ -51,6 +51,21 @@ func (c *LibraryController) Create(w http.ResponseWriter, r *http.Request) {
 	jsonMsg(w, "Add library successfully.")
 }
 
+func (c *LibraryController) GetByID(w http.ResponseWriter, r *http.Request) {
+	idParam := chi.URLParam(r, "id")
+	id, err := strconv.Atoi(idParam)
+	if err != nil {
+		jsonError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	l, err := c.service.GetByID(id)
+	if err != nil {
+		jsonError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	jsonResponse(w, l, http.StatusOK)
+}
+
 func (c *LibraryController) UpdateName(w http.ResponseWriter, r *http.Request) {
 	idParam := chi.URLParam(r, "id")
 	id, err := strconv.Atoi(idParam)

internal/controller/song.go

@@ -25,6 +25,21 @@ func (c *SongController) GetAllWithDetails(w http.ResponseWriter, r *http.Reques
 	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)

internal/repository/song_repo.go

@@ -63,6 +63,21 @@ func (r *SongRepository) GetAllWithDetails() ([]SongDetail, error) {
 	return songs, nil
 }
 
+func (r *SongRepository) GetWithDetails(id int) (model.SongDetail, error) {
+	var song model.SongDetail
+	err := r.db.QueryRow(`
+		SELECT s.id, s.title, a.name as artist_name, al.title as album_title, s.duration, mf.path
+		FROM songs s WHERE id = ?
+		INNER JOIN media_files mf ON s.media_file_id = mf.id
+		INNER JOIN artists a ON s.artist_id = a.id
+		INNER JOIN albums al ON s.album_id = al.id
+	`, id).Scan(&song.ID, &song.Title, &song.Artist, &song.Album, &song.Duration, &song.Path)
+	if err != nil {
+		return model.SongDetail{}, err
+	}
+	return song, nil
+}
+
 func (r *SongRepository) Get(id int) (model.Song, error) {
 	var song model.Song
 	err := r.db.QueryRow(`

internal/service/song_svc.go

@@ -25,6 +25,10 @@ func (s *SongService) GetAllWithDetails() ([]repository.SongDetail, error) {
 	return s.songRepo.GetAllWithDetails()
 }
 
+func (s *SongService) GetByIDWithDetails(id int) (repository.SongDetail, error) {
+	return s.songRepo.GetWithDetails(id)
+}
+
 // GetMediaFilePath returns the file path of a song by its song ID.
 func (s *SongService) GetMediaFile(id int) (model.MediaFile, error) {
 	song, err := s.songRepo.Get(id)