Dart serialize private members.dart

abstract class User extends DataModel {
  final Name name;
  final Address address;
  final Gender gender;
  final Birthday birthDay;
  final Email email;
  final Weight weight;
  final Length height;
  final bool hasFinishedSignUp;

  Iterable<String> get notificationTokens;

  bool get needsEmailVerification;

  bool get hasEmailSettings;

  User finishSignUp();

  User updateAuthenticationProvider(
      List<AuthenticationProvider> authenticationProvider);

  @override
  User copyWith(
      {String id,
      Email email,
      Name name,
      Address address,
      Gender gender,
      Birthday birthDay,
      Weight weight,
      Length height,
      bool setNameNull = false,
      bool setAddressNull = false,
      bool setBirthdayNull = false,
      bool setWeightNull = false, 
      bool setHeightNull = false,
      bool setGenderNull = false});

  factory User(String id, AuthenticationProvider authenticationProvider) =
      UserImpl.newUser;
} 
 
@jsonSerializable
class UserImpl extends DataModel implements User {
  @override
  @JsonProperty(enumValues: Gender.values)
  final Gender gender;
  
  @override
  @JsonProperty()
  final Birthday birthDay;

  @override 
  @JsonProperty()
  final Email email;

  @override
  @JsonProperty()
  final List<String> notificationTokens;

  @JsonProperty()
  final List<AuthenticationProvider> authenticationProvider;

  @override
  @JsonProperty()
  final Name name;

  @override
  @JsonProperty()
  final Address address;

  @override
  @JsonProperty()
  final bool hasFinishedSignUp;

  @override
  @JsonProperty()
  final Length height;

  @override
  @JsonProperty()
  final Weight weight;

  UserImpl({
    String id,
    this.name,
    this.birthDay,
    this.email,
    this.hasFinishedSignUp = false,
    this.gender,
    this.address,
    this.authenticationProvider = const [],
    this.notificationTokens = const [],
    this.height,
    this.weight,
  }) : super(id: id);

  factory UserImpl.newUser(
      String id, AuthenticationProvider authenticationProvider) {
    return UserImpl(
      id: id,
    ).updateAuthenticationProvider([authenticationProvider]) as UserImpl;
  }

  @override
  User copyWith(
      {Email email,
      Address address,
      Gender gender,
      Birthday birthDay,
      Name name,
      bool hasFinishedSignUp,
      List<AuthenticationProvider> authenticationProvider,
      List<String> notificationTokens,
      Length height,
      Weight weight,
      bool setNameNull = false,
      bool setAddressNull = false,
      bool setBirthdayNull = false,
      bool setWeightNull = false,
      bool setHeightNull = false,
      bool setGenderNull = false,
      String id}) {
    return UserImpl(
        id: id ?? this.id,
        email: email ?? this.email,
        name: setNameNull ? null : name ?? this.name,
        hasFinishedSignUp: hasFinishedSignUp ?? this.hasFinishedSignUp,
        address: setAddressNull ? null : address ?? this.address,
        gender: setGenderNull ? null : gender ?? this.gender,
        birthDay: setBirthdayNull ? null : birthDay ?? this.birthDay,
        authenticationProvider:
            authenticationProvider ?? this.authenticationProvider,
        notificationTokens: notificationTokens ?? this.notificationTokens,
        height: setHeightNull ? null : height ?? this.height,
        weight: setWeightNull ? null : weight ?? this.weight);
  }

  @override
  User updateAuthenticationProvider(
      List<AuthenticationProvider> newAuthenticationProvider) {
    return copyWith(authenticationProvider: [
      ...newAuthenticationProvider.toSet().toList()
    ]);
  }

  @override
  bool get needsEmailVerification => authenticationProvider.every(
      (authenticationProvider) => authenticationProvider.shouldValidateEmail);

  @override
  User finishSignUp() {
    return copyWith(hasFinishedSignUp: true);
  }

  @override
  bool get hasEmailSettings =>
      authenticationProvider.any((authenticationProvider) =>
          authenticationProvider.runtimeType == EmailAuthenticationProvider);
}