添加接口

internal/controller/library.go

@@ -195,6 +195,21 @@ func (c *LibraryController) GetArtists(w http.ResponseWriter, r *http.Request) {
 	jsonResponse(w, artists, http.StatusOK)
 }
 
+func (c *LibraryController) GetArtist(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
+	}
+	artist, err := c.service.GetArtist(id)
+	if err != nil {
+		jsonError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	jsonResponse(w, artist, http.StatusOK)
+}
+
 func (c *LibraryController) GetAlbums(w http.ResponseWriter, r *http.Request) {
 	albums, err := c.service.GetAlbums()
 	if err != nil {
@@ -203,3 +218,18 @@ func (c *LibraryController) GetAlbums(w http.ResponseWriter, r *http.Request) {
 	}
 	jsonResponse(w, albums, http.StatusOK)
 }
+
+func (c *LibraryController) GetAlbum(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
+	}
+	album, err := c.service.GetAlbum(id)
+	if err != nil {
+		jsonError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	jsonResponse(w, album, http.StatusOK)
+}

internal/repository/library.go

@@ -275,6 +275,17 @@ func (r *LibraryRepository) GetArtists() ([]model.Artist, error) {
 	return artists, nil
 }
 
+func (r *LibraryRepository) GetArtist(id int) (model.Artist, error) {
+	row := r.db.QueryRow("SELECT id, name FROM artists WHERE id = ?", id)
+
+	var artist model.Artist
+	if err := row.Scan(&artist.ID, &artist.Name); err != nil {
+		return model.Artist{}, err
+	}
+
+	return artist, nil
+}
+
 func (r *LibraryRepository) GetAlbums() ([]model.Album, error) {
 	rows, err := r.db.Query("SELECT id, title, artist_id FROM albums")
 	if err != nil {
@@ -292,3 +303,13 @@ func (r *LibraryRepository) GetAlbums() ([]model.Album, error) {
 	}
 	return albums, nil
 }
+
+func (r *LibraryRepository) GetAlbum(id int) (model.Album, error) {
+	row := r.db.QueryRow("SELECT id, title, artist_id FROM albums WHERE id = ?", id)
+
+	var album model.Album
+	if err := row.Scan(&album.ID, &album.Title, &album.ArtistID); err != nil {
+		return model.Album{}, err
+	}
+	return album, nil
+}

internal/service/library.go

@@ -71,10 +71,18 @@ func (s *LibraryService) GetArtists() ([]model.Artist, error) {
 	return s.repo.GetArtists()
 }
 
+func (s *LibraryService) GetArtist(id int) (model.Artist, error) {
+	return s.repo.GetArtist(id)
+}
+
 func (s *LibraryService) GetAlbums() ([]model.Album, error) {
 	return s.repo.GetAlbums()
 }
 
+func (s *LibraryService) GetAlbum(id int) (model.Album, error) {
+	return s.repo.GetAlbum(id)
+}
+
 func (s *LibraryService) Scan(id int) (*ScanReport, error) {
 	lib, err := s.repo.GetByID(id)
 	if err != nil {