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Client/lib/view/login/login_controller.dart
T

56 lines
1.9 KiB
Dart

import 'dart:developer';
import 'package:flutter/foundation.dart';
import '../../api/errors/auth_exception.dart';
import '../../api/errors/error_mapper.dart';
import '../../api/marianumcloud/talk/room/get_room.dart';
import '../../api/marianumcloud/talk/room/get_room_params.dart';
import '../../model/account_data.dart';
/// Owns the login flow's transient state (loading, last error) so it can be
/// driven from a thin Stateful view and unit-tested without a widget tree.
class LoginController extends ChangeNotifier {
bool _loading = false;
String? _errorMessage;
String? _errorDetails;
bool get loading => _loading;
String? get errorMessage => _errorMessage;
String? get errorDetails => _errorDetails;
/// Returns `true` when the credential probe succeeded. The view should
/// then transition the AccountBloc to `loggedIn`.
Future<bool> submit(String username, String password) async {
if (_loading) return false;
_loading = true;
_errorMessage = null;
_errorDetails = null;
notifyListeners();
final user = username.trim().toLowerCase();
try {
await AccountData().removeData();
await AccountData().setData(user, password);
await GetRoom(GetRoomParams(includeStatus: false)).run();
_loading = false;
notifyListeners();
return true;
} catch (e) {
log(e.toString());
await AccountData().removeData();
// 401 from the probe means the credentials were wrong; everything else
// (no network, server down, TLS errors, …) gets the generic mapped
// message so the user knows it isn't their typo.
final isWrongCredentials = e is AuthException && e.statusCode == 401;
_errorMessage = isWrongCredentials
? 'Benutzername oder Passwort falsch.'
: errorToUserMessage(e);
_errorDetails = errorToTechnicalDetails(e);
_loading = false;
notifyListeners();
return false;
}
}
}