// @JsonSerializable()
class Tag {
  final int id;
  final String name;

  Tag({required this.id, required this.name});

  factory Tag.fromJson(Map<String, dynamic> json) {
    return Tag(id: json['id'] as int, name: json['name'] as String);
  }
}

// @JsonSerializable()
class TimeEntry {
  final int id;
  final int? tagId;
  final String? tagName; // Für einfache Anzeige
  final int startTime; // Unix Timestamp (Sekunden)
  final int? endTime; // Unix Timestamp (Sekunden)
  final int? durationSecs; // Berechnet in Rust

  TimeEntry({
    required this.id,
    this.tagId,
    this.tagName,
    required this.startTime,
    this.endTime,
    this.durationSecs,
  });

  factory TimeEntry.fromJson(Map<String, dynamic> json) {
    return TimeEntry(
      id: json['id'] as int,
      tagId: json['tag_id'] as int?,
      tagName: json['tag_name'] as String?,
      startTime: json['start_time'] as int,
      endTime: json['end_time'] as int?,
      durationSecs: json['duration_secs'] as int?,
    );
  }

  bool get isRunning => endTime == null;

  DateTime get startDateTime =>
      DateTime.fromMillisecondsSinceEpoch(
        startTime * 1000,
        isUtc: true,
      ).toLocal();
  DateTime? get endDateTime =>
      endTime == null
          ? null
          : DateTime.fromMillisecondsSinceEpoch(
            endTime! * 1000,
            isUtc: true,
          ).toLocal();

  String get durationFormatted {
    if (durationSecs == null || durationSecs! < 0) return '--:--:--';
    final duration = Duration(seconds: durationSecs!);
    String twoDigits(int n) => n.toString().padLeft(2, "0");
    final hours = twoDigits(duration.inHours);
    final minutes = twoDigits(duration.inMinutes.remainder(60));
    final seconds = twoDigits(duration.inSeconds.remainder(60));
    return "$hours:$minutes:$seconds";
  }
}

// @JsonSerializable()
class ReportData {
  final List<TimeEntry> entries;
  final int totalDurationSecs;

  ReportData({required this.entries, required this.totalDurationSecs});

  factory ReportData.fromJson(Map<String, dynamic> json) {
    var entryList = json['entries'] as List;
    List<TimeEntry> entries =
        entryList.map((i) => TimeEntry.fromJson(i)).toList();
    return ReportData(
      entries: entries,
      totalDurationSecs: json['total_duration_secs'] as int,
    );
  }

  String get totalDurationFormatted {
    if (totalDurationSecs < 0) return '--:--:--';
    final duration = Duration(seconds: totalDurationSecs);
    String twoDigits(int n) => n.toString().padLeft(2, "0");
    final hours = twoDigits(duration.inHours);
    final minutes = twoDigits(duration.inMinutes.remainder(60));
    final seconds = twoDigits(duration.inSeconds.remainder(60));
    return "$hours:$minutes:$seconds";
  }
}