class Field {
  final String id;
  final String name;
  final int plotCount;
  final String userId;

  // Fields untuk data regional
  final String? region;
  final String? location;
  final double? areaSize;
  final String areaUnit;
  final String ownershipType;
  final String? ownerName;
  final Map<String, dynamic>? regionSpecificData;
  final DateTime createdAt;
  final DateTime updatedAt;

  Field({
    required this.id,
    required this.name,
    required this.plotCount,
    required this.userId,
    this.region,
    this.location,
    this.areaSize,
    this.areaUnit = 'm²',
    this.ownershipType = 'Milik Sendiri',
    this.ownerName,
    this.regionSpecificData,
    required this.createdAt,
    required this.updatedAt,
  });

  factory Field.fromJson(Map<String, dynamic> json) {
    return Field(
      id: json['id'],
      name: json['name'] ?? 'Lahan Tanpa Nama',
      plotCount:
          json['plot_count'] is int
              ? json['plot_count']
              : int.tryParse(json['plot_count']?.toString() ?? '1') ?? 1,
      userId: json['user_id'],
      region: json['region'],
      location: json['location'],
      areaSize:
          json['area_size'] is double
              ? json['area_size']
              : double.tryParse(json['area_size']?.toString() ?? '0'),
      areaUnit: json['area_unit'] ?? 'm²',
      ownershipType: json['ownership_type'] ?? 'Milik Sendiri',
      ownerName: json['owner_name'],
      regionSpecificData:
          json['region_specific_data'] is Map
              ? Map<String, dynamic>.from(json['region_specific_data'])
              : null,
      createdAt:
          json['created_at'] != null
              ? json['created_at'] is DateTime
                  ? json['created_at']
                  : DateTime.parse(json['created_at'])
              : DateTime.now(),
      updatedAt:
          json['updated_at'] != null
              ? json['updated_at'] is DateTime
                  ? json['updated_at']
                  : DateTime.parse(json['updated_at'])
              : DateTime.now(),
    );
  }

  // Alias untuk kompatibilitas dengan kode yang ada
  factory Field.fromMap(Map<String, dynamic> map) => Field.fromJson(map);

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'name': name,
      'plot_count': plotCount,
      'user_id': userId,
      'region': region,
      'location': location,
      'area_size': areaSize,
      'area_unit': areaUnit,
      'ownership_type': ownershipType,
      'owner_name': ownerName,
      'region_specific_data': regionSpecificData,
      'created_at': createdAt.toIso8601String(),
      'updated_at': updatedAt.toIso8601String(),
    };
  }

  Field copyWith({
    String? name,
    String? region,
    String? location,
    double? areaSize,
    String? areaUnit,
    int? plotCount,
    String? ownershipType,
    String? ownerName,
    Map<String, dynamic>? regionSpecificData,
  }) {
    return Field(
      id: id,
      name: name ?? this.name,
      region: region ?? this.region,
      location: location ?? this.location,
      areaSize: areaSize ?? this.areaSize,
      areaUnit: areaUnit ?? this.areaUnit,
      plotCount: plotCount ?? this.plotCount,
      ownershipType: ownershipType ?? this.ownershipType,
      ownerName: ownerName ?? this.ownerName,
      regionSpecificData: regionSpecificData ?? this.regionSpecificData,
      userId: userId,
      createdAt: createdAt,
      updatedAt: DateTime.now(),
    );
  }
}