New code verification service

frontend/pweb/lib/providers/two_factor.dart

@@ -1,38 +1,69 @@
 import 'package:flutter/material.dart';
+import 'package:logging/logging.dart';
 
-import 'package:pweb/services/auth.dart';
-
+import 'package:pshared/models/auth/pending_login.dart';
+import 'package:pshared/provider/account.dart';
+import 'package:pshared/service/account.dart';
 
 class TwoFactorProvider extends ChangeNotifier {
-  final AuthenticationService _authService;
+  static final _logger = Logger('provider.two_factor');
+  final AccountProvider _accountProvider;
 
-  TwoFactorProvider(this._authService);
+  TwoFactorProvider({required AccountProvider accountProvider}) : _accountProvider = accountProvider;
 
   bool _isSubmitting = false;
   bool _hasError = false;
   bool _verificationSuccess = false;
+  String? _errorMessage;
 
   bool get isSubmitting => _isSubmitting;
   bool get hasError => _hasError;
   bool get verificationSuccess => _verificationSuccess;
+  String? get errorMessage => _errorMessage;
+  PendingLogin? get pendingLogin => _accountProvider.pendingLogin;
 
 
   Future<void> submitCode(String code) async {
     _isSubmitting = true;
     _hasError = false;
+    _errorMessage = null;
     _verificationSuccess = false;
     notifyListeners(); 
 
     try {
-      final success = await _authService.verifyTwoFactorCode(code);
-      if (success) {
-        _verificationSuccess = true;
+      final pending = _accountProvider.pendingLogin;
+      if (pending == null) {
+        throw Exception('No pending login available');
       }
+      final account = await AccountService.confirmLoginCode(
+        pending: pending,
+        code: code,
+      );
+      _accountProvider.completePendingLogin(account);
+      _verificationSuccess = true;
     } catch (e) {
       _hasError = true;
+      _errorMessage = e.toString();
+      _logger.warning('Failed to verify code', e);
     } finally {
       _isSubmitting = false;
       notifyListeners();
     }
   }
-}
+
+  Future<void> resendCode() async {
+    final pending = _accountProvider.pendingLogin;
+    if (pending == null) {
+      _logger.warning('No pending login to resend code for');
+      return;
+    }
+    try {
+      await AccountService.resendLoginCode(pending);
+    } catch (e) {
+      _logger.warning('Failed to resend login code', e);
+      _hasError = true;
+      _errorMessage = e.toString();
+      notifyListeners();
+    }
+  }
+}