part of 'data_service.dart';

extension DataServiceStats on DataService {
  Future<void> fetchAboutStats({bool force = false}) async {
    if (_isAboutStatsLoading) return;
    if (!force && _aboutStats != null) return;
    _isAboutStatsLoading = true;
    _notifyAsync();
    try {
      final json = await api.get('/stats/about');
      if (json is Map<String, dynamic>) {
        _aboutStats = StatsAbout.fromJson(json);
      } else if (json is Map) {
        _aboutStats = StatsAbout.fromJson(
          json.map((key, value) => MapEntry(key.toString(), value)),
        );
      } else {
        throw Exception('Unexpected stats response: $json');
      }
    } catch (e) {
      debugPrint('Failed to fetch about stats: $e');
      _aboutStats = null;
    } finally {
      _isAboutStatsLoading = false;
      _notifyAsync();
    }
  }

  Future<void> fetchFriendsLeaderboard() async {
    if (_isFriendsLeaderboardLoading) return;
    _isFriendsLeaderboardLoading = true;
    _notifyAsync();
    try {
      final json = await api.get('/stats/leaderboard/friends');
      List<dynamic>? list;
      if (json is List) {
        list = json;
      } else if (json is Map) {
        for (final key in ['leaderboard', 'data', 'items', 'results']) {
          final value = json[key];
          if (value is List) {
            list = value;
            break;
          }
        }
      }
      _friendsLeaderboard = list
              ?.whereType<Map>()
              .map((e) => LeaderboardEntry.fromJson(
                    e.map((k, v) => MapEntry(k.toString(), v)),
                  ))
              .toList() ??
          const [];
    } catch (e) {
      debugPrint('Failed to fetch friends leaderboard: $e');
      _friendsLeaderboard = [];
    } finally {
      _isFriendsLeaderboardLoading = false;
      _notifyAsync();
    }
  }
}