fix: Hide public channel and show signal pills #123

lib/screens/settings_screen.dart

@@ -429,6 +429,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
   Future<void> _editFastLocationChannel() async {
     final channels =
         List<Contact>.from(context.read<ContactsProvider>().channels)
+          ..removeWhere((c) => c.isPublicChannel)
           ..sort((a, b) {
             final aIdx = a.publicKey.length > 1 ? a.publicKey[1] : 0;
             final bIdx = b.publicKey.length > 1 ? b.publicKey[1] : 0;

lib/widgets/contacts/contact_tile.dart

@@ -157,6 +157,7 @@ class ContactTile extends StatelessWidget {
                       icon: Icons.folder_copy_outlined,
                       label: label,
                     ),
+                  ..._buildSignalPills(context),
                 ],
               ),
               if (location != null) ...[
@@ -324,6 +325,34 @@ class ContactTile extends StatelessWidget {
     );
   }
 
+  List<Widget> _buildSignalPills(BuildContext context) {
+    if (!contact.isRepeater && !contact.isSensor) return [];
+    final contactsProvider = context.read<ContactsProvider>();
+    final advert = contactsProvider.pendingAdvertByKey(contact.publicKey);
+    if (advert == null) return [];
+
+    final pills = <Widget>[];
+    if (advert.rxRssiDbm != null) {
+      pills.add(
+        _buildMetaPill(
+          context,
+          icon: Icons.arrow_downward_rounded,
+          label: '${advert.rxRssiDbm} dBm',
+        ),
+      );
+    }
+    if (advert.repeaterLastRssi != null) {
+      pills.add(
+        _buildMetaPill(
+          context,
+          icon: Icons.arrow_upward_rounded,
+          label: '${advert.repeaterLastRssi} dBm',
+        ),
+      );
+    }
+    return pills;
+  }
+
   Widget _buildCompactSubtitle(BuildContext context, String? distanceText) {
     final location = contact.displayLocation;
     final compactPills = <Widget>[
@@ -338,6 +367,7 @@ class ContactTile extends StatelessWidget {
           icon: Icons.location_disabled_outlined,
           label: AppLocalizations.of(context)!.noGpsData,
         ),
+      ..._buildSignalPills(context),
     ];
 
     return Padding(

test/widgets/recipient_selector_sheet_test.dart

@@ -204,4 +204,43 @@ void main() {
     expect(find.textContaining('Channel 3'), findsNothing);
     expect(find.text(channel.publicKeyShort.toUpperCase()), findsNothing);
   });
+
+  testWidgets('shows contact activity instead of the public key', (
+    tester,
+  ) async {
+    final contact = buildContact(
+      name: 'John Smith',
+      type: ContactType.chat,
+      secondByte: 4,
+    );
+    final messagesProvider = MessagesProvider()
+      ..addMessage(
+        Message(
+          id: 'contact-activity',
+          messageType: MessageType.contact,
+          recipientPublicKey: contact.publicKey,
+          pathLen: 1,
+          textType: MessageTextType.plain,
+          senderTimestamp:
+              DateTime.now()
+                  .subtract(const Duration(hours: 2))
+                  .millisecondsSinceEpoch ~/
+              1000,
+          text: 'check-in',
+          receivedAt: DateTime.now().subtract(const Duration(hours: 2)),
+        ),
+      );
+
+    await pumpSheet(
+      tester,
+      contacts: [contact],
+      channels: const [],
+      messagesProvider: messagesProvider,
+      showAllOption: false,
+    );
+
+    expect(find.text('John Smith'), findsOneWidget);
+    expect(find.text('2h ago'), findsOneWidget);
+    expect(find.text(contact.publicKeyShort), findsNothing);
+  });
 }