feat(uploads): match release groups with MusicBrainz and AcoustID

services/api/internal/uploads/store.go

@@ -231,9 +231,10 @@ const fileColumns = `f.id, f.batch_id, f.author_id, u.username, b.comment, f.sta
 	f.size_bytes, f.received_bytes, f.sha256, coalesce(f.staging_path, ''), f.format, f.codec, f.bitrate, f.sample_rate,
 	f.bit_depth, f.duration_ms, f.tags, f.metadata, f.metadata_edited, f.matched_artist_id, f.matched_album_id,
 	f.duplicate_of_track_id, f.duplicate_level, f.possible_duplicate, f.quality_upgrade, f.target_source_id, f.target_rel_path,
-	f.status_reason, f.reviewed_by, f.reviewed_at, f.imported_file_id, b.cover_path, f.created_at, f.updated_at, src.name`
+	f.status_reason, f.reviewed_by, f.reviewed_at, f.imported_file_id, CASE WHEN f.release_group_id IS NULL THEN b.cover_path ELSE rg.cover_path END, f.created_at, f.updated_at, src.name`
 
 const fileFrom = ` FROM upload_files f JOIN upload_batches b ON b.id = f.batch_id JOIN users u ON u.id = f.author_id
+	LEFT JOIN upload_release_groups rg ON rg.id=f.release_group_id
 	LEFT JOIN library_sources src ON src.id = f.target_source_id`
 
 func scanFile(row pgx.Row) (File, error) {
@@ -351,7 +352,9 @@ func (st *Store) NextWithStatus(ctx context.Context, s Status) (File, error) {
 func (st *Store) StagingInUse(ctx context.Context) (map[string]bool, error) {
 	rows, err := st.pool.Query(ctx, `SELECT staging_path FROM upload_files WHERE status::text = ANY($1) AND staging_path IS NOT NULL
 		UNION SELECT b.cover_path FROM upload_batches b JOIN upload_files f ON f.batch_id = b.id
-		WHERE f.status::text = ANY($1) AND b.cover_path IS NOT NULL`,
+		WHERE f.status::text = ANY($1) AND b.cover_path IS NOT NULL
+		UNION SELECT g.cover_path FROM upload_release_groups g JOIN upload_files f ON f.release_group_id=g.id
+		WHERE f.status::text = ANY($1) AND g.cover_path IS NOT NULL`,
 		occupyingStatuses)
 	if err != nil {
 		return nil, fmt.Errorf("uploads: staging in use: %w", err)
@@ -593,12 +596,19 @@ func (st *Store) PendingInBatch(ctx context.Context, batchID uuid.UUID) ([]File,
 
 // SetCover записывает путь обложки пачки (nil — снять).
 func (st *Store) SetCover(ctx context.Context, batchID uuid.UUID, path *string) error {
-	tag, err := st.pool.Exec(ctx, `UPDATE upload_batches SET cover_path = $2 WHERE id = $1`, batchID, path)
+	tag, err := st.pool.Exec(ctx, `WITH updated AS (UPDATE upload_batches SET cover_path = $2 WHERE id = $1 RETURNING id)
+ UPDATE upload_release_groups SET cover_path=$2 WHERE batch_id IN (SELECT id FROM updated)`, batchID, path)
 	if err != nil {
 		return fmt.Errorf("uploads: set cover: %w", err)
 	}
 	if tag.RowsAffected() == 0 {
-		return ErrNotFound
+		var exists bool
+		if err = st.pool.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM upload_batches WHERE id=$1)`, batchID).Scan(&exists); err != nil {
+			return err
+		}
+		if !exists {
+			return ErrNotFound
+		}
 	}
 	return nil
 }