implemented dual Nextcloud push registration with separate general and talk apptypes to ensure reliable Talk notification delivery; introduced stacked MessagingStyle notifications for chat threads with support for circular conversation avatars and disk caching

lib/view/pages/settings/sections/talk_section.dart

@@ -3,14 +3,12 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
-import '../../../../api/errors/error_mapper.dart';
-import '../../../../api/marianumconnect/queries/push_device_test/push_device_test.dart';
 import '../../../../push/push_registration.dart';
-import '../../../../push/push_registration_store.dart';
 import '../../../../routing/app_routes.dart';
 import '../../../../state/app/modules/settings/bloc/settings_cubit.dart';
 import '../../../../utils/haptics.dart';
 import '../../../../widget/centered_leading.dart';
+import '../widgets/push_status_sheet.dart';
 
 class TalkSection extends StatelessWidget {
   const TalkSection({super.key});
@@ -56,7 +54,9 @@ class TalkSection extends StatelessWidget {
             Icon(Icons.notifications_active_outlined),
           ),
           title: const Text('Push-Benachrichtigungen'),
-          subtitle: const Text('Neue Talk-Nachrichten direkt aufs Gerät'),
+          subtitle: const Text(
+            'Benachrichtigungen bei neuen Talk-Nachrichten erhalten',
+          ),
           trailing: Checkbox(
             value: notificationSettings.enabled,
             onChanged: (e) {
@@ -74,8 +74,9 @@ class TalkSection extends StatelessWidget {
                     messenger.showSnackBar(
                       const SnackBar(
                         content: Text(
-                          'Benachrichtigungen sind in den Systemeinstellungen '
-                          'deaktiviert — bitte dort erlauben.',
+                          'Die Benachrichtigungsberechtigung wurde in den '
+                          'Systemeinstellungen deaktiviert. Bitte aktiviere '
+                          'sie dort, um Push-Benachrichtigungen zu erhalten.',
                         ),
                       ),
                     );
@@ -87,102 +88,14 @@ class TalkSection extends StatelessWidget {
             },
           ),
         ),
-        if (notificationSettings.enabled) const _TestNotificationTile(),
+        ListTile(
+          leading: const CenteredLeading(Icon(Icons.monitor_heart_outlined)),
+          title: const Text('Push-Status'),
+          subtitle: const Text('Registrierung und Zustellung im Detail'),
+          trailing: const Icon(Icons.arrow_right),
+          onTap: () => showPushStatusSheet(context),
+        ),
       ],
     );
   }
 }
-
-/// "Send a test notification" action, shown only while push is enabled. The
-/// button stays disabled until a registration is confirmed present, then calls
-/// the backend and reports the result via a SnackBar.
-class _TestNotificationTile extends StatefulWidget {
-  const _TestNotificationTile();
-
-  @override
-  State<_TestNotificationTile> createState() => _TestNotificationTileState();
-}
-
-class _TestNotificationTileState extends State<_TestNotificationTile> {
-  static const _permissionDeniedHint =
-      'Benachrichtigungen sind in den Systemeinstellungen deaktiviert';
-
-  bool _registered = false;
-  bool _permissionDenied = false;
-  bool _sending = false;
-
-  @override
-  void initState() {
-    super.initState();
-    _loadState();
-  }
-
-  Future<void> _loadState() async {
-    final registered = await const PushRegistrationStore().isRegistered();
-    final denied = await PushRegistration.isOsPermissionDenied();
-    if (!mounted) return;
-    setState(() {
-      _registered = registered;
-      _permissionDenied = denied;
-    });
-  }
-
-  Future<void> _sendTest() async {
-    if (_sending) return;
-    Haptics.selection();
-    final messenger = ScaffoldMessenger.of(context);
-    // Re-check right before sending: the user may have flipped the OS
-    // permission in the system settings since this tile was built.
-    final denied = await PushRegistration.isOsPermissionDenied();
-    if (!mounted) return;
-    if (denied) {
-      setState(() => _permissionDenied = true);
-      messenger.showSnackBar(
-        const SnackBar(
-          content: Text('$_permissionDeniedHint — bitte dort erlauben.'),
-        ),
-      );
-      return;
-    }
-    setState(() {
-      _permissionDenied = false;
-      _sending = true;
-    });
-    String message;
-    try {
-      final devices = await PushDeviceTest().run();
-      message = devices >= 1
-          ? 'Testbenachrichtigung an $devices Gerät(e) gesendet'
-          : 'Kein Gerät registriert — Push-Registrierung prüfen';
-    } on Object catch (e) {
-      message = errorToUserMessage(e);
-    }
-    if (!mounted) return;
-    setState(() => _sending = false);
-    messenger.showSnackBar(SnackBar(content: Text(message)));
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    if (!_registered) return const SizedBox.shrink();
-    return ListTile(
-      leading: const CenteredLeading(Icon(Icons.send_outlined)),
-      title: const Text('Testbenachrichtigung senden'),
-      subtitle: _permissionDenied
-          ? Text(
-              _permissionDeniedHint,
-              style: TextStyle(color: Theme.of(context).colorScheme.error),
-            )
-          : const Text('Prüft, ob Push auf diesem Gerät ankommt'),
-      trailing: _sending
-          ? const SizedBox(
-              width: 20,
-              height: 20,
-              child: CircularProgressIndicator(strokeWidth: 2),
-            )
-          : const Icon(Icons.arrow_right),
-      enabled: !_sending,
-      onTap: _sending ? null : _sendTest,
-    );
-  }
-}