e_receipt_mobile/lib/presentation/login/login_state.dart

import 'package:e_receipt_mobile/domain/entities/login_user.dart';

class LoginState {
  const LoginState({
    this.isLoading = false,
    this.errorMessage,
    this.successMessage,
    this.user,
  });

  final bool isLoading;
  final String? errorMessage;
  final String? successMessage;
  final LoginUser? user;

  static const Object _unset = Object();

  LoginState copyWith({
    bool? isLoading,
    String? errorMessage,
    String? successMessage,
    Object? user = _unset,
    bool clearError = false,
    bool clearSuccess = false,
  }) {
    return LoginState(
      isLoading: isLoading ?? this.isLoading,
      errorMessage: clearError ? null : errorMessage ?? this.errorMessage,
      successMessage: clearSuccess
          ? null
          : successMessage ?? this.successMessage,
      user: identical(user, _unset) ? this.user : user as LoginUser?,
    );
  }
}