import 'package:json_annotation/json_annotation.dart';

part 'udp_package.g.dart';

@JsonSerializable()
class UdpPackage {
  final String id;
  final String name;
  final String data;
  
  // Support for multiple IP addresses
  final List<String> ipAddresses;
  
  // Broadcast mode flag
  @JsonKey(defaultValue: false)
  final bool isBroadcast;
  
  // Legacy field for backward compatibility - kept for migration
  @JsonKey(includeFromJson: true, includeToJson: false)
  final String? ipAddress;

  UdpPackage({
    required this.id,
    required this.name,
    required this.data,
    List<String>? ipAddresses,
    this.isBroadcast = false,
    this.ipAddress,
  }) : ipAddresses = ipAddresses ?? (ipAddress != null ? [ipAddress] : ['127.0.0.1']);

  factory UdpPackage.fromJson(Map<String, dynamic> json) {
    // Handle migration from old format
    if (json.containsKey('ipAddress') && !json.containsKey('ipAddresses')) {
      json['ipAddresses'] = [json['ipAddress']];
    }
    return _$UdpPackageFromJson(json);
  }

  Map<String, dynamic> toJson() => _$UdpPackageToJson(this);

  UdpPackage copyWith({
    String? id,
    String? name,
    String? data,
    List<String>? ipAddresses,
    bool? isBroadcast,
  }) {
    return UdpPackage(
      id: id ?? this.id,
      name: name ?? this.name,
      data: data ?? this.data,
      ipAddresses: ipAddresses ?? this.ipAddresses,
      isBroadcast: isBroadcast ?? this.isBroadcast,
    );
  }
}