Open login page if login tokens are rejected by server

lib/helpers/api_helper.dart

@@ -1,5 +1,6 @@
 import 'dart:io';
 
+import 'package:comunic/helpers/events_helper.dart';
 import 'package:comunic/helpers/preferences_helper.dart';
 import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/api_response.dart';
@@ -71,6 +72,10 @@ class APIHelper {
         ),
       );
 
+      // Check if login token is rejected by server
+      if (response.statusCode == 412)
+        EventsHelper.emit(InvalidLoginTokensEvent());
+
       if (response.statusCode != HttpStatus.ok)
         return APIResponse(response.statusCode, null);
 

lib/helpers/events_helper.dart

@@ -8,6 +8,9 @@ import 'package:event_bus/event_bus.dart';
 ///
 /// @author Pierre Hubert
 
+/// Invalid login token
+class InvalidLoginTokensEvent {}
+
 /// Main WebSocket closed
 class WSClosedEvent {}
 

lib/ui/widgets/init_widget.dart

@@ -1,5 +1,6 @@
 import 'package:comunic/helpers/events_helper.dart';
 import 'package:comunic/helpers/websocket_helper.dart';
+import 'package:comunic/ui/routes/login_route.dart';
 import 'package:comunic/ui/routes/main_route.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
 import 'package:comunic/utils/intl_utils.dart';
@@ -28,6 +29,9 @@ class _InitializeWidgetState extends SafeState<InitializeWidget> {
 
     super.initState();
 
+    // Check if login token are considered as invalid
+    super.listen<InvalidLoginTokensEvent>((ev) => _openLoginPage());
+
     // Listen to WebSocket close event
     super.listen<WSClosedEvent>((e) => _tryConnect());
   }
@@ -38,6 +42,12 @@ class _InitializeWidgetState extends SafeState<InitializeWidget> {
     WebSocketHelper.close();
   }
 
+  /// Open login page
+  _openLoginPage() {
+    Navigator.of(context)
+        .pushReplacement(MaterialPageRoute(builder: (c) => LoginRoute()));
+  }
+
   /// Try to connect to server
   void _tryConnect() async {
     try {