ReelShort/test/support/fake_watch_history.dart

import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';

/// Records every history interaction so tests can assert on the key it used.
class FakeWatchHistory implements WatchHistoryRepository {
  final List<String> reads = [];
  final List<String> writes = [];

  /// Position returned by [positionFor] when [failReads] is false.
  Duration? saved;

  /// Last episode returned by [lastEpisodeId].
  String? lastEpisode;

  bool failReads = false;
  bool failWrites = false;

  @override
  Future<Duration?> positionFor(
    String profileId,
    String dramaId,
    String episodeId,
  ) async {
    reads.add('$profileId|$dramaId|$episodeId');
    if (failReads) throw StateError('history unavailable');
    return saved;
  }

  @override
  Future<String?> lastEpisodeId(String profileId, String dramaId) async {
    if (failReads) throw StateError('history unavailable');
    return lastEpisode;
  }

  @override
  Future<void> save(
    String profileId,
    String dramaId,
    String episodeId,
    Duration position,
  ) async {
    if (failWrites) throw StateError('history unavailable');
    writes.add('$profileId|$dramaId|$episodeId|${position.inMilliseconds}');
  }
}