search: use only TrackID in Delete API

radio.go

@@ -257,7 +257,7 @@ type SongInfo struct {
 type SearchService interface {
 	Search(ctx context.Context, query string, limit int64, offset int64) (*SearchResult, error)
 	Update(context.Context, ...Song) error
-	Delete(context.Context, ...Song) error
+	Delete(context.Context, ...TrackID) error
 }
 
 type SearchResult struct {

search/storage.go

@@ -211,3 +211,18 @@ func (ts trackStorage) DecrementRequestCount(before time.Time) error {
 	}
 	return nil
 }
+
+func (ts trackStorage) Delete(id radio.TrackID) error {
+	const op errors.Op = "search/trackStorage.Delete"
+
+	err := ts.wrapped.Delete(id)
+	if err != nil {
+		return errors.E(op, err)
+	}
+
+	err = ts.search.Delete(ts.ctx, id)
+	if err != nil {
+		return errors.E(op, err)
+	}
+	return nil
+}

storage/mariadb/search.go

@@ -134,7 +134,7 @@ func (ss SearchService) Update(context.Context, ...radio.Song) error {
 	return nil
 }
 
-func (ss SearchService) Delete(context.Context, ...radio.Song) error {
+func (ss SearchService) Delete(context.Context, ...radio.TrackID) error {
 	// noop since we use the active storage as index
 	return nil
 }