[Flutter] Force a username before subscribing

flutter/lib/api/api_client.dart

@@ -205,7 +205,7 @@ class APIClient {
       fn: User.fromJson,
       authToken: auth.getToken(),
       query: {
-        'confirm': ['true']
+        'confirm': ['true'],
       },
     );
   }
@@ -230,7 +230,7 @@ class APIClient {
   static Future<Client> updateClient(TokenSource auth, String clientID, {String? fcmToken, String? agentModel, String? name, String? agentVersion}) async {
     return await _request(
       name: 'updateClient',
-      method: 'PUT',
+      method: 'PATCH',
       relURL: 'users/${auth.getUserID()}/clients/$clientID',
       jsonBody: {
         if (fcmToken != null) 'fcm_token': fcmToken,
@@ -259,7 +259,7 @@ class APIClient {
       method: 'GET',
       relURL: 'users/${auth.getUserID()}/channels',
       query: {
-        'selector': [sel.apiKey]
+        'selector': [sel.apiKey],
       },
       fn: (json) => ChannelWithSubscription.fromJsonArray(json['channels'] as List<dynamic>),
       authToken: auth.getToken(),

flutter/lib/pages/channel_scanner/channel_scanner_result_channelsubscribe.dart

@@ -12,6 +12,7 @@ import 'package:simplecloudnotifier/state/app_auth.dart';
 import 'package:simplecloudnotifier/state/application_log.dart';
 import 'package:simplecloudnotifier/utils/navi.dart';
 import 'package:simplecloudnotifier/utils/toaster.dart';
+import 'package:simplecloudnotifier/utils/dialogs.dart';
 import 'package:simplecloudnotifier/utils/ui.dart';
 
 class ChannelScannerResultChannelSubscribe extends StatefulWidget {
@@ -172,6 +173,38 @@ class _ChannelScannerResultChannelSubscribeState extends State<ChannelScannerRes
 
   void _onSubscribe() async {
     final auth = Provider.of<AppAuth>(context, listen: false);
+
+    // Check if username is set
+    try {
+      final user = await auth.loadUser();
+      if (user.username == null || user.username!.isEmpty) {
+        // Show modal to set username
+        var newusername = await UIDialogs.showUsernameRequiredDialog(context);
+
+        if (newusername == null) return; // User cancelled
+
+        newusername = newusername.trim();
+        if (newusername.isEmpty) {
+          Toaster.error("Error", 'Username cannot be empty');
+          return;
+        }
+
+        // Update username via API
+        try {
+          await APIClient.updateUser(auth, auth.userID!, username: newusername);
+          await auth.loadUser(force: true); // Refresh cached user
+          Toaster.success("Success", 'Username set');
+        } catch (e) {
+          Toaster.error("Error", 'Failed to set username: ${e.toString()}');
+          return;
+        }
+      }
+    } catch (e) {
+      Toaster.error("Error", 'Failed to load user data: ${e.toString()}');
+      return;
+    }
+
+    // Proceed with subscription
     try {
       var sub = await APIClient.subscribeToChannelbyID(auth, widget.value.channelID, subscribeKey: widget.value.subscribeKey);
       if (sub.confirmed) {

flutter/lib/pages/debug/debug_actions.dart

@@ -5,6 +5,7 @@ import 'package:simplecloudnotifier/api/api_client.dart';
 import 'package:simplecloudnotifier/state/app_settings.dart';
 import 'package:simplecloudnotifier/state/app_auth.dart';
 import 'package:simplecloudnotifier/state/application_log.dart';
+import 'package:simplecloudnotifier/state/globals.dart';
 import 'package:simplecloudnotifier/utils/notifier.dart';
 import 'package:simplecloudnotifier/utils/toaster.dart';
 import 'package:simplecloudnotifier/utils/ui.dart';
@@ -65,22 +66,31 @@ class _DebugActionsPageState extends State<DebugActionsPage> {
                 onPressed: _sendTokenToServer,
                 text: 'Send FCM Token to Server',
               ),
+              SizedBox(height: 4),
+              UI.button(
+                big: false,
+                onPressed: _updateClient,
+                text: 'Update Client on Server',
+              ),
               SizedBox(height: 20),
               UI.button(
                 big: false,
                 onPressed: () => Notifier.showLocalNotification('', 'TEST_CHANNEL', "Test Channel", "Channel for testing", "Hello World", "Local Notification test", null, null),
                 text: 'Show local notification (generic)',
               ),
+              SizedBox(height: 4),
               UI.button(
                 big: false,
                 onPressed: () => Notifier.showLocalNotification('', 'TEST_CHANNEL', "Test Channel", "Channel for testing", "Hello World", "Local Notification test", null, 0),
                 text: 'Show local notification (Prio = 0)',
               ),
+              SizedBox(height: 4),
               UI.button(
                 big: false,
                 onPressed: () => Notifier.showLocalNotification('', 'TEST_CHANNEL', "Test Channel", "Channel for testing", "Hello World", "Local Notification test", null, 1),
                 text: 'Show local notification (Prio = 1)',
               ),
+              SizedBox(height: 4),
               UI.button(
                 big: false,
                 onPressed: () => Notifier.showLocalNotification('', 'TEST_CHANNEL', "Test Channel", "Channel for testing", "Hello World", "Local Notification test", null, 2),
@@ -128,6 +138,26 @@ class _DebugActionsPageState extends State<DebugActionsPage> {
     }
   }
 
+  void _updateClient() async {
+    try {
+      final auth = AppAuth();
+
+      final clientID = auth.getClientID();
+      if (clientID == null) {
+        Toaster.error("Error", "No Client set");
+        return;
+      }
+
+      final newClient = await APIClient.updateClient(auth, clientID, agentModel: Globals().deviceModel, name: Globals().nameForClient(), agentVersion: Globals().version);
+      auth.setClientAndClientID(newClient);
+
+      Toaster.success("Success", "Client updated");
+    } catch (exc, trace) {
+      Toaster.error("Error", "An error occurred while updating the client: ${exc.toString()}");
+      ApplicationLog.error("An error occurred while updating the client: ${exc.toString()}", trace: trace);
+    }
+  }
+
   void _copyToken() async {
     try {
       final fcmToken = await FirebaseMessaging.instance.getToken();

flutter/lib/pages/debug/debug_request_view.dart

@@ -135,7 +135,7 @@ class _DebugRequestViewPageState extends State<DebugRequestViewPage> {
   void _copyCurl() {
     final method = '-X ${widget.request.method}';
     final header = widget.request.requestHeaders.entries.map((v) => '-H "${v.key}: ${v.value}"').join(' ');
-    final body = widget.request.requestBody.isNotEmpty ? '-d "${widget.request.requestBody}"' : '';
+    final body = widget.request.requestBody.isNotEmpty ? '-d \'${widget.request.requestBody}\'' : '';
 
     final curlParts = ['curl', method, header, '"${widget.request.url}"', body];
 

flutter/lib/utils/dialogs.dart

@@ -28,6 +28,40 @@ class UIDialogs {
     );
   }
 
+  static Future<String?> showUsernameRequiredDialog(BuildContext context) {
+    var _textFieldController = TextEditingController();
+
+    return showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: Text('Username Required'),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text('Please set a public username to subscribe to channels from other users.'),
+            SizedBox(height: 16),
+            TextField(
+              autofocus: true,
+              controller: _textFieldController,
+              decoration: InputDecoration(hintText: 'Enter username'),
+            ),
+          ],
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(),
+            child: Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(_textFieldController.text),
+            child: Text('OK'),
+          ),
+        ],
+      ),
+    );
+  }
+
   static Future<bool> showConfirmDialog(BuildContext context, String title, {String? text, String? okText, String? cancelText}) {
     return showDialog<bool>(
       context: context,