listScopedImageNames function

Implementation

Future<List<String>> listScopedImageNames(String scope) async {
  final s = _canonicalizeScope(scope.trim());
  if (s.isEmpty || kIsWeb) return const [];

  await _mergeLegacyScopeIntoCanonical(s);

  final base = await localPath;
  final byName = <String, DateTime>{};

  void collectScope(String scopeName, {String? exposeAsScope}) {
    final dir = Directory('$base/$scopeName');
    if (!dir.existsSync()) return;
    final outScope = exposeAsScope ?? scopeName;

    for (final entity in dir.listSync(followLinks: false)) {
      if (entity is! File) continue;
      final segments = entity.uri.pathSegments;
      if (segments.isEmpty) continue;
      final filename = segments.last;
      if (filename.isEmpty || filename.startsWith('.')) continue;
      if (!_looksLikeImageFilename(filename)) continue;

      DateTime modified = DateTime.fromMillisecondsSinceEpoch(0);
      try {
        modified = entity.statSync().modified;
      } catch (_) {}
      byName['$outScope/$filename'] = modified;
    }
  }

  collectScope(s, exposeAsScope: s);
  final legacyScope = _legacyScopeForCanonical(s);
  if (legacyScope != s) {
    collectScope(legacyScope, exposeAsScope: s);
  }

  final out = byName.keys.toList()
    ..sort((a, b) {
      final am = byName[a] ?? DateTime.fromMillisecondsSinceEpoch(0);
      final bm = byName[b] ?? DateTime.fromMillisecondsSinceEpoch(0);
      final cmp = am.compareTo(bm);
      return cmp != 0 ? cmp : a.compareTo(b);
    });
  return out;
}