added talk notification levels for chats

lib/view/pages/talk/details/chat_info.dart

@@ -6,6 +6,7 @@ import '../../../../api/marianumcloud/talk/get_participants/get_participants_cac
 import '../../../../api/marianumcloud/talk/get_participants/get_participants_response.dart';
 import '../../../../api/marianumcloud/talk/get_shared_items/get_shared_items_overview_response.dart';
 import '../../../../api/marianumcloud/talk/room/get_room_response.dart';
+import '../../../../api/marianumcloud/talk/room/notification_level.dart';
 import '../../../../state/app/modules/chat_list/bloc/chat_list_bloc.dart';
 import '../../../../widget/app_progress_indicator.dart';
 import '../../../../widget/async_action_button.dart';
@@ -14,6 +15,7 @@ import '../../../../widget/confirm_dialog.dart';
 import '../../../../widget/large_profile_picture_view.dart';
 import '../../../../widget/user_avatar.dart';
 import '../talk_navigator.dart';
+import '../widgets/notification_level_sheet.dart';
 import 'participants_list_view.dart';
 import 'shared_items_view.dart';
 
@@ -29,6 +31,7 @@ class _ChatInfoState extends State<ChatInfo> {
   GetParticipantsResponse? participants;
   GetSharedItemsOverviewResponse? _sharesOverview;
   late bool _isFavorite;
+  late NotificationLevel _notificationLevel;
   int _avatarVersion = 0;
   bool _avatarBusy = false;
 
@@ -36,6 +39,7 @@ class _ChatInfoState extends State<ChatInfo> {
   void initState() {
     super.initState();
     _isFavorite = widget.room.isFavorite;
+    _notificationLevel = widget.room.effectiveNotificationLevel;
     GetParticipantsCache(
       chatToken: widget.room.token,
       onUpdate: (GetParticipantsResponse data) {
@@ -67,6 +71,16 @@ class _ChatInfoState extends State<ChatInfo> {
     _refreshList();
   }
 
+  Future<void> _editNotificationLevel() async {
+    final level = await showNotificationLevelSheet(
+      context,
+      widget.room,
+      current: _notificationLevel,
+    );
+    if (level == null || !mounted) return;
+    setState(() => _notificationLevel = level);
+  }
+
   Future<void> _confirmLeave() async {
     final closed = await showDialog<bool>(
       context: context,
@@ -243,6 +257,11 @@ class _ChatInfoState extends State<ChatInfo> {
               title: const Text('Zu Favoriten hinzufügen'),
               onPressed: _toggleFavorite,
             ),
+          NotificationLevelTile(
+            level: _notificationLevel,
+            trailing: const Icon(Icons.arrow_right),
+            onTap: _editNotificationLevel,
+          ),
           const Divider(),
           ListTile(
             leading: Icon(

lib/view/pages/talk/widgets/chat_tile.dart

@@ -6,6 +6,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../../../api/marianumcloud/talk/actions/talk_actions.dart';
 import '../../../../api/marianumcloud/talk/chat/rich_object_string_processor.dart';
 import '../../../../api/marianumcloud/talk/room/get_room_response.dart';
+import '../../../../api/marianumcloud/talk/room/notification_level.dart';
 import '../../../../api/marianumcloud/talk/set_read_marker/set_read_marker.dart';
 import '../../../../extensions/date_time.dart';
 import '../../../../model/account_data.dart';
@@ -22,6 +23,7 @@ import '../../../../widget/details_bottom_sheet.dart';
 import '../../../../widget/user_avatar.dart';
 import '../data/talk_markdown.dart';
 import '../talk_navigator.dart';
+import 'notification_level_sheet.dart';
 
 class ChatTile extends StatefulWidget {
   final GetRoomResponseObject data;
@@ -151,6 +153,15 @@ class _ChatTileState extends State<ChatTile> {
               semanticLabel: A11yLabels.draft,
             ),
           ],
+          if (widget.data.isMuted) ...[
+            const SizedBox(width: 5),
+            Icon(
+              NotificationLevel.neverNotify.icon,
+              size: 15,
+              color: Theme.of(context).colorScheme.onSurfaceVariant,
+              semanticLabel: A11yLabels.muted,
+            ),
+          ],
         ],
       ),
       subtitle: Text(
@@ -238,6 +249,17 @@ class _ChatTileState extends State<ChatTile> {
                   if (mounted) _refreshList();
                 },
               ),
+            NotificationLevelTile(
+              level: widget.data.effectiveNotificationLevel,
+              onTap: () {
+                Navigator.of(sheetCtx).pop();
+                showNotificationLevelSheet(
+                  context,
+                  widget.data,
+                  current: widget.data.effectiveNotificationLevel,
+                );
+              },
+            ),
             ListTile(
               leading: const Icon(Icons.delete_outline),
               title: const Text('Talk-Chat verlassen'),

lib/view/pages/talk/widgets/notification_level_sheet.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import '../../../../api/marianumcloud/talk/room/get_room_response.dart';
+import '../../../../api/marianumcloud/talk/room/notification_level.dart';
+import '../../../../state/app/modules/chat_list/bloc/chat_list_bloc.dart';
+import '../../../../widget/async_action_button.dart';
+import '../../../../widget/details_bottom_sheet.dart';
+
+extension NotificationLevelPresentation on NotificationLevel {
+  // defaultLevel never reaches the UI (see effectiveNotificationLevel), but
+  // the switch has to stay exhaustive.
+  ({String label, String description, IconData icon}) get _presentation =>
+      switch (this) {
+        NotificationLevel.alwaysNotify || NotificationLevel.defaultLevel => (
+          label: 'Alle Nachrichten',
+          description: 'Bei jeder neuen Nachricht',
+          icon: Icons.notifications_outlined,
+        ),
+        NotificationLevel.notifyOnMention => (
+          label: 'Nur Erwähnungen',
+          description: 'Nur wenn du erwähnt wirst',
+          icon: Icons.alternate_email,
+        ),
+        NotificationLevel.neverNotify => (
+          label: 'Aus',
+          description: 'Keine Benachrichtigungen',
+          icon: Icons.notifications_off_outlined,
+        ),
+      };
+
+  String get label => _presentation.label;
+  String get description => _presentation.description;
+  IconData get icon => _presentation.icon;
+}
+
+/// Lets the user pick the room's Talk notification level. Nextcloud applies
+/// it server-side, so no push for the room is sent at all when muted.
+/// Returns the new level, or null when nothing changed.
+Future<NotificationLevel?> showNotificationLevelSheet(
+  BuildContext context,
+  GetRoomResponseObject room, {
+  required NotificationLevel current,
+}) async {
+  final bloc = context.read<ChatListBloc>();
+  NotificationLevel? selected;
+  await showDetailsBottomSheet(
+    context,
+    header: ListTile(
+      leading: const Icon(Icons.notifications_outlined),
+      title: const Text('Benachrichtigungen'),
+      subtitle: Text(room.displayName, overflow: TextOverflow.ellipsis),
+    ),
+    children: (_) => [
+      for (final level in selectableNotificationLevels)
+        AsyncListTile(
+          leading: Icon(
+            level == current
+                ? Icons.radio_button_checked
+                : Icons.radio_button_unchecked,
+          ),
+          title: Text(level.label),
+          subtitle: Text(level.description),
+          onPressed: () async {
+            if (level == current) return;
+            await bloc.setNotificationLevel(room.token, level);
+            selected = level;
+          },
+        ),
+    ],
+  );
+  return selected;
+}
+
+class NotificationLevelTile extends StatelessWidget {
+  final NotificationLevel level;
+  final VoidCallback onTap;
+  final Widget? trailing;
+
+  const NotificationLevelTile({
+    required this.level,
+    required this.onTap,
+    this.trailing,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) => ListTile(
+    leading: Icon(level.icon),
+    title: const Text('Benachrichtigungen'),
+    subtitle: Text(level.label),
+    trailing: trailing,
+    onTap: onTap,
+  );
+}