reset on error

web/repertory/lib/constants.dart

@@ -1,3 +1,5 @@
+import 'package:flutter/material.dart' show GlobalKey, NavigatorState;
+
 const addMountTitle = 'New Mount Settings';
 const appTitle = 'Repertory Management Portal';
 const databaseTypeList = ['rocksdb', 'sqlite'];
@@ -7,3 +9,5 @@ const padding = 15.0;
 const protocolTypeList = ['http', 'https'];
 const providerTypeList = ['Encrypt', 'Remote', 'S3', 'Sia'];
 const ringBufferSizeList = ['128', '256', '512', '1024', '2048'];
+
+final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();

web/repertory/lib/main.dart

@@ -30,6 +30,7 @@ class _MyAppState extends State<MyApp> {
     );
 
     return MaterialApp(
+      navigatorKey: constants.navigatorKey,
       themeMode: ThemeMode.dark,
       darkTheme: ThemeData(
         useMaterial3: true,

web/repertory/lib/models/mount.dart

@@ -3,11 +3,13 @@ import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:http/http.dart' as http;
 import 'package:repertory/helpers.dart';
+import 'package:repertory/models/mount_list.dart';
 import 'package:repertory/types/mount_config.dart';
 
 class Mount with ChangeNotifier {
   final MountConfig mountConfig;
-  Mount(this.mountConfig, {isAdd = false}) {
+  final MountList? _mountList;
+  Mount(this.mountConfig, this._mountList, {isAdd = false}) {
     if (isAdd) {
       return;
     }
@@ -28,6 +30,11 @@ class Mount with ChangeNotifier {
         ),
       );
 
+      if (response.statusCode == 404) {
+        _mountList?.reset();
+        return;
+      }
+
       if (response.statusCode != 200) {
         return;
       }
@@ -50,6 +57,11 @@ class Mount with ChangeNotifier {
         ),
       );
 
+      if (response.statusCode == 404) {
+        _mountList?.reset();
+        return;
+      }
+
       if (response.statusCode != 200) {
         return;
       }
@@ -108,6 +120,11 @@ class Mount with ChangeNotifier {
         ),
       );
 
+      if (response.statusCode == 404) {
+        _mountList?.reset();
+        return null;
+      }
+
       if (response.statusCode != 200) {
         return null;
       }

web/repertory/lib/models/mount_list.dart

@@ -2,7 +2,9 @@ import 'dart:convert';
 
 import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart' show ModalRoute;
 import 'package:http/http.dart' as http;
+import 'package:repertory/constants.dart' as constants;
 import 'package:repertory/helpers.dart';
 import 'package:repertory/models/mount.dart';
 import 'package:repertory/types/mount_config.dart';
@@ -48,15 +50,21 @@ class MountList with ChangeNotifier {
         Uri.parse('${getBaseUri()}/api/v1/mount_list'),
       );
 
+      if (response.statusCode == 404) {
+        reset();
+        return;
+      }
+
       if (response.statusCode != 200) {
         return;
       }
+
       List<Mount> nextList = [];
 
       jsonDecode(response.body).forEach((type, value) {
         nextList.addAll(
           value
-              .map((name) => Mount(MountConfig(type: type, name: name)))
+              .map((name) => Mount(MountConfig(type: type, name: name), this))
               .toList(),
         );
       });
@@ -100,6 +108,19 @@ class MountList with ChangeNotifier {
     return _fetch();
   }
 
+  Future<void> reset() async {
+    _mountList = [];
+    notifyListeners();
+
+    _fetch();
+
+    if (constants.navigatorKey.currentContext == null ||
+        ModalRoute.of(constants.navigatorKey.currentContext!)?.settings.name !=
+            '/') {
+      constants.navigatorKey.currentState?.pushReplacementNamed('/');
+    }
+  }
+
   void remove(String name) {
     _mountList.removeWhere((item) => item.name == name);
 

web/repertory/lib/screens/add_mount_screen.dart

@@ -219,6 +219,7 @@ class _AddMountScreenState extends State<AddMountScreen> {
                   settings: _settings[mountType],
                   type: mountType,
                 ),
+                null,
                 isAdd: true,
               );
     });