import 'package:equatable/equatable.dart';
import 'package:city_repository/city_repository.dart';

class Region extends Equatable {
  final String name;
  final List<City> cities;

  const Region({
    required this.name,
    required this.cities,
  });

  static const empty = Region(name: '', cities: []);
  Region copyWith({
    String? name,
    List<City>? cities,
  }) {
    return Region(
      name: name ?? this.name,
      cities: cities ?? this.cities,
    );
  }

  bool get isEmpty => this == Region.empty;

  bool get isNotEmpty => this != Region.empty;

  Region toEntity() {
    return Region(name: name, cities: cities);
  }

  static Region fromEntity(RegionEntity entity) {
    return Region(
      name: entity.name,
      cities: entity.cities.map((city) => City.fromEntity(city)).toList(),
    );
  }

  @override
  List<Object?> get props => [name, cities];
}