Improve handling of logout and token expiration

lib/client_holder.dart

@@ -14,8 +14,9 @@ class ClientHolder extends InheritedWidget {
     super.key,
     required AuthenticationData authenticationData,
     required this.settingsClient,
-    required super.child
-  }) : apiClient = ApiClient(authenticationData: authenticationData);
+    required super.child,
+    required Function() onLogout,
+  }) : apiClient = ApiClient(authenticationData: authenticationData, onLogout: onLogout);
 
   static ClientHolder? maybeOf(BuildContext context) {
     return context.dependOnInheritedWidgetOfExactType<ClientHolder>();

lib/clients/api_client.dart

@@ -18,10 +18,12 @@ class ApiClient {
   static const String tokenKey = "token";
   static const String passwordKey = "password";
 
-  ApiClient({required AuthenticationData authenticationData}) : _authenticationData = authenticationData;
+  ApiClient({required AuthenticationData authenticationData, required this.onLogout}) : _authenticationData = authenticationData;
 
   final AuthenticationData _authenticationData;
   final Logger _logger = Logger("API");
+  // Saving the context here feels kinda cringe ngl
+  final Function() onLogout;
 
   AuthenticationData get authenticationData => _authenticationData;
   String get userId => _authenticationData.userId;
@@ -103,7 +105,7 @@ class ApiClient {
     return AuthenticationData.unauthenticated();
   }
 
-  Future<void> logout(BuildContext context) async {
+  Future<void> logout() async {
     const FlutterSecureStorage storage = FlutterSecureStorage(
       aOptions: AndroidOptions(encryptedSharedPreferences: true),
     );
@@ -111,9 +113,7 @@ class ApiClient {
     await storage.delete(key: machineIdKey);
     await storage.delete(key: tokenKey);
     await storage.delete(key: passwordKey);
-    if (context.mounted) {
-      Phoenix.rebirth(context);
-    }
+    onLogout();
   }
 
   Future<void> extendSession() async {
@@ -127,7 +127,7 @@ class ApiClient {
     if (response.statusCode == 403) {
       tryCachedLogin().then((value) {
         if (!value.isAuthenticated) {
-          // TODO: Turn api-client into a change notifier to present login screen when logged out
+          onLogout();
         }
       });
     }
@@ -138,7 +138,7 @@ class ApiClient {
     if (response.statusCode < 300) return;
 
     final error = "${switch (response.statusCode) {
-      429 => "Sorry, you are being rate limited.",
+      429 => "You are being rate limited.",
       403 => "You are not authorized to do that.",
       404 => "Resource not found.",
       500 => "Internal server error.",

lib/clients/settings_client.dart

@@ -15,7 +15,6 @@ class SettingsClient {
     final data = await _storage.read(key: _settingsKey);
     if (data == null) return;
     _currentSettings = Settings.fromMap(jsonDecode(data));
-
   }
 
   Future<void> changeSettings(Settings newSettings) async {

lib/main.dart

@@ -2,6 +2,7 @@ import 'dart:developer';
 
 import 'package:contacts_plus_plus/apis/github_api.dart';
 import 'package:contacts_plus_plus/client_holder.dart';
+import 'package:contacts_plus_plus/clients/api_client.dart';
 import 'package:contacts_plus_plus/clients/messaging_client.dart';
 import 'package:contacts_plus_plus/clients/settings_client.dart';
 import 'package:contacts_plus_plus/models/sem_ver.dart';
@@ -26,14 +27,20 @@ void main() async {
   Logger.root.onRecord.listen((event) => log("${dateFormat.format(event.time)}: ${event.message}", name: event.loggerName, time: event.time));
   final settingsClient = SettingsClient();
   await settingsClient.loadSettings();
-  await settingsClient.changeSettings(settingsClient.currentSettings); // Save generated defaults to disk
-  runApp(Phoenix(child: ContactsPlusPlus(settingsClient: settingsClient,)));
+  final newSettings = settingsClient.currentSettings.copyWith(machineId: settingsClient.currentSettings.machineId.valueOrDefault);
+  await settingsClient.changeSettings(newSettings); // Save generated machineId to disk
+  AuthenticationData cachedAuth = AuthenticationData.unauthenticated();
+  try {
+    cachedAuth = await ApiClient.tryCachedLogin();
+  } catch (_) {}
+  runApp(ContactsPlusPlus(settingsClient: settingsClient, cachedAuthentication: cachedAuth));
 }
 
 class ContactsPlusPlus extends StatefulWidget {
-  const ContactsPlusPlus({required this.settingsClient, super.key});
+  const ContactsPlusPlus({required this.settingsClient, required this.cachedAuthentication, super.key});
 
   final SettingsClient settingsClient;
+  final AuthenticationData cachedAuthentication;
 
   @override
   State<ContactsPlusPlus> createState() => _ContactsPlusPlusState();
@@ -41,7 +48,7 @@ class ContactsPlusPlus extends StatefulWidget {
 
 class _ContactsPlusPlusState extends State<ContactsPlusPlus> {
   final Typography _typography = Typography.material2021(platform: TargetPlatform.android);
-  AuthenticationData _authData = AuthenticationData.unauthenticated();
+  late AuthenticationData _authData = widget.cachedAuthentication;
   bool _checkedForUpdate = false;
 
   void showUpdateDialogOnFirstBuild(BuildContext context) {
@@ -95,9 +102,18 @@ class _ContactsPlusPlusState extends State<ContactsPlusPlus> {
 
   @override
   Widget build(BuildContext context) {
+    return Phoenix(
+      child: Builder(
+        builder: (context) {
           return ClientHolder(
             settingsClient: widget.settingsClient,
             authenticationData: _authData,
+            onLogout: () {
+              setState(() {
+                _authData = AuthenticationData.unauthenticated();
+              });
+              Phoenix.rebirth(context);
+            },
             child: DynamicColorBuilder(
               builder: (ColorScheme? lightDynamic, ColorScheme? darkDynamic) => MaterialApp(
                   debugShowCheckedModeBanner: false,
@@ -135,4 +151,7 @@ class _ContactsPlusPlusState extends State<ContactsPlusPlus> {
             ),
           );
         }
+      ),
+    );
+  }
 }

lib/widgets/login_screen.dart

@@ -19,12 +19,7 @@ class _LoginScreenState extends State<LoginScreen> {
   final TextEditingController _passwordController = TextEditingController();
   final TextEditingController _totpController = TextEditingController();
   final ScrollController _scrollController = ScrollController();
-  late final Future<AuthenticationData> _cachedLoginFuture = ApiClient.tryCachedLogin().then((value) async {
-    if (value.isAuthenticated) {
-      await loginSuccessful(value);
-    }
-    return value;
-  });
+
   late final FocusNode _passwordFocusNode;
   late final FocusNode _totpFocusNode;
 
@@ -150,14 +145,8 @@ class _LoginScreenState extends State<LoginScreen> {
       appBar: AppBar(
         title: const Text("Contacts++"),
       ),
-      body: FutureBuilder(
-          future: _cachedLoginFuture,
-          builder: (context, snapshot) {
-            if (snapshot.hasData || snapshot.hasError) {
-              final authData = snapshot.data;
-              if (authData?.isAuthenticated ?? false) {
-                return const SizedBox.shrink();
-              }
+      body: Builder(
+          builder: (context) {
             return ListView(
               controller: _scrollController,
               children: [
@@ -245,8 +234,6 @@ class _LoginScreenState extends State<LoginScreen> {
               ],
             );
           }
-            return const LinearProgressIndicator();
-          }
       ),
     );
   }

lib/widgets/settings_page.dart

@@ -44,7 +44,7 @@ class SettingsPage extends StatelessWidget {
                         TextButton(onPressed: () => Navigator.of(context).pop(), child: const Text("No")),
                         TextButton(
                           onPressed: () async {
-                            await ClientHolder.of(context).apiClient.logout(context);
+                            await ClientHolder.of(context).apiClient.logout();
                           },
                           child: const Text("Yes"),
                         ),