neon: add `AddAccount` route to prevent trying to pop the last page

packages/neon/neon/lib/src/pages/account_settings.dart

@@ -28,9 +28,17 @@ class AccountSettingsPage extends StatelessWidget {
                   // ignore: use_build_context_synchronously
                   AppLocalizations.of(context).accountOptionsRemoveConfirm(account.client.humanReadableID),
                 )) {
+                  final isActive = bloc.activeAccount.value == account;
+
                   bloc.removeAccount(account);
+
+                  if (isActive) {
                     // ignore: use_build_context_synchronously
                     const HomeRoute().go(context);
+                  } else {
+                    // ignore: use_build_context_synchronously
+                    Navigator.of(context).pop();
+                  }
                 }
               },
               tooltip: AppLocalizations.of(context).accountOptionsRemove,

packages/neon/neon/lib/src/pages/settings.dart

@@ -183,7 +183,7 @@ class _SettingsPageState extends State<SettingsPage> {
                         CustomSettingsTile(
                           title: ElevatedButton.icon(
                             onPressed: () {
-                              const LoginRoute().go(context);
+                              const AddAccountRoute().go(context);
                             },
                             icon: const Icon(MdiIcons.accountPlus),
                             label: Text(AppLocalizations.of(context).globalOptionsAccountsAdd),

packages/neon/neon/lib/src/router.dart

@@ -1,5 +1,6 @@
 // ignore: prefer_mixin
-import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
 import 'package:go_router/go_router.dart';
 import 'package:neon/neon.dart';
 import 'package:provider/provider.dart';
@@ -11,12 +12,14 @@ class AppRouter extends GoRouter {
     required final GlobalKey<NavigatorState> navigatorKey,
     required final AccountsBloc accountsBloc,
   }) : super(
+          debugLogDiagnostics: kDebugMode,
           refreshListenable: StreamListenable.behaviorSubject(accountsBloc.activeAccount),
           navigatorKey: navigatorKey,
           initialLocation: const HomeRoute().location,
           redirect: (final context, final state) {
             final account = accountsBloc.activeAccount.valueOrNull;
 
+            // redirect to loginscreen when no account is logged in
             if (account == null) {
               return const LoginRoute().location;
             }
@@ -56,9 +59,13 @@ class AccountSettingsRoute extends GoRouteData {
       name: 'Settings',
       routes: [
         TypedGoRoute<NextcloudAppSettingsRoute>(
-          path: ':appid',
+          path: 'apps/:appid',
           name: 'NextcloudAppSettings',
         ),
+        TypedGoRoute<AddAccountRoute>(
+          path: 'account/add',
+          name: 'addAccount',
+        ),
         TypedGoRoute<AccountSettingsRoute>(
           path: 'account/:accountid',
           name: 'AccountSettings',
@@ -94,6 +101,14 @@ class LoginRoute extends GoRouteData {
   Widget build(final BuildContext context, final GoRouterState state) => LoginPage(serverURL: server);
 }
 
+@immutable
+class AddAccountRoute extends GoRouteData {
+  const AddAccountRoute();
+
+  @override
+  Widget build(final BuildContext context, final GoRouterState state) => const LoginPage();
+}
+
 @immutable
 class NextcloudAppSettingsRoute extends GoRouteData {
   const NextcloudAppSettingsRoute({

packages/neon/neon/lib/src/router.g.dart

@@ -22,10 +22,15 @@ RouteBase get $homeRoute => GoRouteData.$route(
           factory: $SettingsRouteExtension._fromState,
           routes: [
             GoRouteData.$route(
-              path: ':appid',
+              path: 'apps/:appid',
               name: 'NextcloudAppSettings',
               factory: $NextcloudAppSettingsRouteExtension._fromState,
             ),
+            GoRouteData.$route(
+              path: 'account/add',
+              name: 'addAccount',
+              factory: $AddAccountRouteExtension._fromState,
+            ),
             GoRouteData.$route(
               path: 'account/:accountid',
               name: 'AccountSettings',
@@ -70,7 +75,21 @@ extension $NextcloudAppSettingsRouteExtension on NextcloudAppSettingsRoute {
       );
 
   String get location => GoRouteData.$location(
-        '/settings/${Uri.encodeComponent(appid)}',
+        '/settings/apps/${Uri.encodeComponent(appid)}',
+      );
+
+  void go(BuildContext context) => context.go(location);
+
+  Future<T?> push<T>(BuildContext context) => context.push<T>(location);
+
+  void pushReplacement(BuildContext context) => context.pushReplacement(location);
+}
+
+extension $AddAccountRouteExtension on AddAccountRoute {
+  static AddAccountRoute _fromState(GoRouterState state) => const AddAccountRoute();
+
+  String get location => GoRouteData.$location(
+        '/settings/account/add',
       );
 
   void go(BuildContext context) => context.go(location);