class ControlHistoryModel {
  final String action;
  final String source;
  final String timestamp;
  final int rawTimestamp;

  ControlHistoryModel({
    required this.action,
    required this.source,
    required this.timestamp,
    required this.rawTimestamp,
  });

  factory ControlHistoryModel.fromMap(Map<dynamic, dynamic> json) {
    final int ts = json['timestamp'] is int ? json['timestamp'] : 0;
    return ControlHistoryModel(
      action: json['action'] ?? '',
      source: json['source'] ?? '',
      timestamp: _parseTimestamp(json['timestamp']),
      rawTimestamp: ts,
    );
  }

  Map<String, dynamic> toMap() {
    return {
      'action': action,
      'source': source,
      'timestamp': timestamp,
      'rawTimestamp': rawTimestamp,
    };
  }
}

String _parseTimestamp(dynamic value) {
  if (value == null) return '';
  if (value is int) {
    final dt = DateTime.fromMillisecondsSinceEpoch(value * 1000);
    return "${dt.year}-${dt.month.toString().padLeft(2, '0')}-${dt.day.toString().padLeft(2, '0')} "
           "${dt.hour.toString().padLeft(2, '0')}:${dt.minute.toString().padLeft(2, '0')}:${dt.second.toString().padLeft(2, '0')}";
  }
  return value.toString();
}