Review MeshCore payload status

lib/providers/messages_provider.dart

@@ -213,6 +213,22 @@ class MessagesProvider with ChangeNotifier {
       .where((message) => _isMessageForDestination(message, contact))
       .length;
 
+  DateTime? getLastActivityForDestination(Contact contact) {
+    DateTime? latest;
+
+    for (final message in _messages) {
+      if (!_isMessageForDestination(message, contact)) {
+        continue;
+      }
+
+      if (latest == null || message.sentAt.isAfter(latest)) {
+        latest = message.sentAt;
+      }
+    }
+
+    return latest;
+  }
+
   int getUnreadCountForDestination(Contact contact) => _messages
       .where(
         (message) =>
@@ -904,7 +920,8 @@ class MessagesProvider with ChangeNotifier {
 
       final matchesDestination = switch (destinationType) {
         'channel' => _isChannelMessageForContact(message, contact),
-        'contact' || 'room' => contact != null && _isMessageForDestination(message, contact),
+        'contact' ||
+        'room' => contact != null && _isMessageForDestination(message, contact),
         _ => false,
       };
 

lib/screens/contacts_tab.dart

@@ -665,12 +665,32 @@ class _ChannelActivityCard extends StatelessWidget {
     required this.onNavigateToMessages,
   });
 
+  String _formatRelativeTime(BuildContext context, DateTime when) {
+    final l10n = AppLocalizations.of(context)!;
+    final diff = DateTime.now().difference(when);
+
+    if (diff.inMinutes < 1) return l10n.justNow;
+    if (diff.inMinutes < 60) return l10n.minutesAgo(diff.inMinutes);
+    if (diff.inHours < 24) return l10n.hoursAgo(diff.inHours);
+    return l10n.daysAgo(diff.inDays);
+  }
+
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
+    final titleStyle = Theme.of(context).textTheme.titleMedium?.copyWith(
+      fontWeight: FontWeight.w800,
+      letterSpacing: -0.3,
+    );
     final channelIdx = channel.publicKey.length > 1 ? channel.publicKey[1] : 0;
     final channelMessages = messagesProvider.getMessagesForChannel(channelIdx)
       ..sort((a, b) => b.sentAt.compareTo(a.sentAt));
+    final lastActivityAt = messagesProvider.getLastActivityForDestination(
+      channel,
+    );
+    final activityLabel = lastActivityAt == null
+        ? null
+        : _formatRelativeTime(context, lastActivityAt);
     final participantNames = <String>[];
     for (final message in channelMessages) {
       final senderName = message.senderName?.trim();
@@ -688,12 +708,19 @@ class _ChannelActivityCard extends StatelessWidget {
           end: Alignment.bottomRight,
           colors: [
             colorScheme.surfaceContainerLow,
-            colorScheme.tertiaryContainer.withValues(alpha: 0.45),
+            colorScheme.surfaceContainerHighest.withValues(alpha: 0.9),
           ],
         ),
         border: Border.all(
           color: colorScheme.outlineVariant.withValues(alpha: 0.35),
         ),
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withValues(alpha: 0.045),
+            blurRadius: 12,
+            offset: const Offset(0, 4),
+          ),
+        ],
       ),
       child: Material(
         color: Colors.transparent,
@@ -715,23 +742,35 @@ class _ChannelActivityCard extends StatelessWidget {
             child: Row(
               crossAxisAlignment: CrossAxisAlignment.center,
               children: [
-                ContactAvatar(contact: channel, radius: 20),
+                ContactAvatar(contact: channel, radius: 24),
                 const SizedBox(width: 10),
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      Text(
+                      Row(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Expanded(
+                            child: Text(
                               channel.displayName,
                               maxLines: 1,
                               overflow: TextOverflow.ellipsis,
-                        style: Theme.of(context).textTheme.titleMedium
+                              style: titleStyle,
-                            ?.copyWith(
-                              fontWeight: FontWeight.w800,
-                              fontSize: 15,
-                              height: 1.05,
                             ),
                           ),
+                          const SizedBox(width: 8),
+                          if (activityLabel != null)
+                            Text(
+                              activityLabel,
+                              style: Theme.of(context).textTheme.labelSmall
+                                  ?.copyWith(
+                                    color: colorScheme.onSurfaceVariant,
+                                    fontWeight: FontWeight.w600,
+                                  ),
+                            ),
+                        ],
+                      ),
                       const SizedBox(height: 8),
                       if (participantNames.isNotEmpty)
                         _ExpandableParticipantStack(

lib/screens/home_screen.dart

@@ -772,7 +772,7 @@ class _HomeScreenState extends State<HomeScreen>
                               Icons.message,
                               unreadCount,
                             ),
-                            text: AppLocalizations.of(context)!.messages,
+                            text: 'Chat',
                           );
                         case _HomeTab.contacts:
                           return Tab(

lib/screens/repeaters_map_screen.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart' as flutter_map;
 import 'package:geolocator/geolocator.dart';
@@ -5,6 +7,7 @@ import 'package:latlong2/latlong.dart';
 import 'package:provider/provider.dart';
 
 import '../models/contact.dart';
+import '../providers/connection_provider.dart';
 import '../providers/contacts_provider.dart';
 import '../services/mesh_map_nodes_service.dart';
 
@@ -28,6 +31,7 @@ class _RepeatersMapScreenState extends State<RepeatersMapScreen> {
   String? _error;
   double _currentZoom = _fallbackZoom;
   LatLng? _myLocation;
+  final Set<String> _addingRepeaters = <String>{};
 
   @override
   void initState() {
@@ -164,6 +168,13 @@ class _RepeatersMapScreenState extends State<RepeatersMapScreen> {
   }
 
   void _showRepeaterDetails(_MapRepeater repeater) {
+    final isAdding = _addingRepeaters.contains(repeater.publicKey);
+    final canAdd = !repeater.isFromContacts;
+    final isConnected = context
+        .read<ConnectionProvider>()
+        .deviceInfo
+        .isConnected;
+
     showModalBottomSheet<void>(
       context: context,
       showDragHandle: true,
@@ -192,6 +203,40 @@ class _RepeatersMapScreenState extends State<RepeatersMapScreen> {
                     '${repeater.latitude.toStringAsFixed(5)}, ${repeater.longitude.toStringAsFixed(5)}',
               ),
               _InfoLine(label: 'Source', value: repeater.sourceLabel),
+              const SizedBox(height: 12),
+              if (canAdd)
+                SizedBox(
+                  width: double.infinity,
+                  child: FilledButton.icon(
+                    onPressed: !isConnected || isAdding
+                        ? null
+                        : () async {
+                            Navigator.of(context).pop();
+                            await _addRepeaterToContacts(repeater);
+                          },
+                    icon: isAdding
+                        ? const SizedBox(
+                            width: 16,
+                            height: 16,
+                            child: CircularProgressIndicator(strokeWidth: 2),
+                          )
+                        : const Icon(Icons.person_add_alt_1),
+                    label: Text(
+                      !isConnected
+                          ? 'Connect device to add'
+                          : 'Add to contacts',
+                    ),
+                  ),
+                )
+              else
+                SizedBox(
+                  width: double.infinity,
+                  child: FilledButton.icon(
+                    onPressed: null,
+                    icon: const Icon(Icons.check_circle),
+                    label: const Text('Already in contacts'),
+                  ),
+                ),
             ],
           ),
         ),
@@ -199,6 +244,59 @@ class _RepeatersMapScreenState extends State<RepeatersMapScreen> {
     );
   }
 
+  Future<void> _addRepeaterToContacts(_MapRepeater repeater) async {
+    if (_addingRepeaters.contains(repeater.publicKey)) {
+      return;
+    }
+
+    final connectionProvider = context.read<ConnectionProvider>();
+    if (!connectionProvider.deviceInfo.isConnected) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text('Connect to a device before adding contacts'),
+        ),
+      );
+      return;
+    }
+
+    setState(() {
+      _addingRepeaters.add(repeater.publicKey);
+    });
+
+    try {
+      await connectionProvider.getContact(_hexToBytes(repeater.publicKey));
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('${repeater.name} added to contacts')),
+      );
+    } catch (error) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Failed to add ${repeater.name}: $error')),
+      );
+    } finally {
+      if (mounted) {
+        setState(() {
+          _addingRepeaters.remove(repeater.publicKey);
+        });
+      }
+    }
+  }
+
+  Uint8List _hexToBytes(String hex) {
+    final normalized = hex.replaceAll(':', '').trim().toLowerCase();
+    return Uint8List.fromList(
+      List<int>.generate(
+        normalized.length ~/ 2,
+        (index) => int.parse(
+          normalized.substring(index * 2, index * 2 + 2),
+          radix: 16,
+        ),
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     final contactsProvider = context.watch<ContactsProvider>();

lib/widgets/contacts/contact_tile.dart

@@ -36,10 +36,9 @@ class ContactTile extends StatelessWidget {
     this.onNavigateToMessages,
   });
 
-  /// Get localized time since last seen
+  String _getLocalizedRelativeTime(BuildContext context, DateTime when) {
-  String _getLocalizedTimeSinceLastSeen(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
-    final diff = DateTime.now().difference(contact.lastSeenTime);
+    final diff = DateTime.now().difference(when);
 
     if (diff.inMinutes < 1) return l10n.justNow;
     if (diff.inMinutes < 60) return l10n.minutesAgo(diff.inMinutes);
@@ -50,6 +49,8 @@ class ContactTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final isChannel = contact.type == ContactType.channel;
+    final isRoom = contact.type == ContactType.room;
+    final isRoomOrChannel = isRoom || isChannel;
     final location = contact.displayLocation;
     // Calculate distance if both positions are available
     String? distanceText;
@@ -68,6 +69,7 @@ class ContactTile extends StatelessWidget {
 
     // Get room login state if this is a room
     final connectionProvider = context.watch<ConnectionProvider>();
+    final messagesProvider = context.watch<MessagesProvider>();
     final isPingInProgress = connectionProvider.isPingInProgress(
       contact.publicKey,
     );
@@ -109,16 +111,20 @@ class ContactTile extends StatelessWidget {
       fontWeight: FontWeight.w800,
       letterSpacing: -0.3,
     );
-    final timeAgoText = _getLocalizedTimeSinceLastSeen(context);
+    final lastActivityAt = isRoomOrChannel
+        ? messagesProvider.getLastActivityForDestination(contact)
+        : null;
+    final timeAgoText = _getLocalizedRelativeTime(
+      context,
+      lastActivityAt ?? contact.lastSeenTime,
+    );
     final timeAgoStyle = Theme.of(context).textTheme.labelSmall?.copyWith(
       color: contact.isRecentlySeen
           ? colorScheme.primary
           : colorScheme.onSurfaceVariant,
       fontWeight: FontWeight.w600,
     );
-    final Widget? subtitleWidget = isChannel
+    final Widget subtitleWidget = Column(
-        ? null
-        : Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         if (location != null) ...[
@@ -239,7 +245,7 @@ class ContactTile extends StatelessWidget {
                             ),
                           ),
                           const SizedBox(width: 8),
-                          if (!isChannel)
+                          if (!isRoomOrChannel || lastActivityAt != null)
                             Text(timeAgoText, style: timeAgoStyle),
                           if (isPingInProgress) ...[
                             const SizedBox(width: 6),
@@ -254,7 +260,7 @@ class ContactTile extends StatelessWidget {
                           ],
                         ],
                       ),
-                      ?subtitleWidget,
+                      subtitleWidget,
                     ],
                   ),
                 ),