0.2.58 - Requests module

server/internal/store/library.go

@@ -180,6 +180,52 @@ func (s *Store) LibraryContainsProviderIDs(
 	return found, rows.Err()
 }
 
+// LibraryProviderItemIDs is LibraryContainsProviderIDs with the answer the request page
+// needs: not only whether Emby has the title, but which item it is.
+//
+// That id is what lets a request that has finally downloaded stop being a status card and
+// become something a viewer can press. Ordering by item_id keeps the answer stable when a
+// household holds the same title twice — a duplicate import, or a remake sharing an id in
+// bad metadata — so a card does not point at a different copy between two reads.
+func (s *Store) LibraryProviderItemIDs(
+	ctx context.Context, provider string, ids []int,
+) (map[int]string, error) {
+	found := map[int]string{}
+	if len(ids) == 0 {
+		return found, nil
+	}
+	values := make([]string, 0, len(ids))
+	for _, id := range ids {
+		if id > 0 {
+			values = append(values, fmt.Sprint(id))
+		}
+	}
+	if len(values) == 0 {
+		return found, nil
+	}
+	rows, err := s.pool.Query(ctx, `
+		SELECT DISTINCT ON ((payload->'ProviderIds'->>$1)::int)
+		       (payload->'ProviderIds'->>$1)::int, id
+		FROM library_items
+		WHERE payload->'ProviderIds'->>$1 = ANY($2::text[])
+		ORDER BY (payload->'ProviderIds'->>$1)::int, id`, provider, values)
+	if err != nil {
+		return nil, fmt.Errorf("store: library provider item ids: %w", err)
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var (
+			id     int
+			itemID string
+		)
+		if err := rows.Scan(&id, &itemID); err != nil {
+			return nil, err
+		}
+		found[id] = itemID
+	}
+	return found, rows.Err()
+}
+
 // LibraryCandidates returns unwatched-agnostic candidates in the given genres, for the
 // recommendation engine. User state is applied by the caller, which is the only place
 // that knows it.