Fix issues flagged by flutter analyze

This fixes code quality issues that flutter analyze catches and adds a CI step to Github Actions to flag on any future issues.

.github/workflows/flutter_analyze.yml

@@ -0,0 +1,23 @@
+name: Flutter Analyze
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Analyze
+        run: flutter analyze --fatal-infos --fatal-warnings

lib/connector/meshcore_connector.dart

@@ -1766,7 +1766,7 @@ class MeshCoreConnector extends ChangeNotifier {
       _batteryMillivolts = readUint16LE(frame, 1);
       final volts = (_batteryMillivolts! / 1000.0).toStringAsFixed(2);
       _appDebugLogService?.info(
-        'Pulled battery: $volts V (${_batteryMillivolts} mV)',
+        'Pulled battery: $volts V ($_batteryMillivolts mV)',
         tag: 'Battery',
       );
       notifyListeners();
@@ -2272,7 +2272,6 @@ class MeshCoreConnector extends ChangeNotifier {
     // [6-9] = estimated_timeout_ms (uint32)
 
     if (frame.length >= 10) {
-      final isFlood = frame[1] != 0;
       final ackHash = Uint8List.fromList(frame.sublist(2, 6));
       final timeoutMs = readUint32LE(frame, 6);
 
@@ -2618,7 +2617,7 @@ class MeshCoreConnector extends ChangeNotifier {
     final keyLen = psk.length < 16 ? psk.length : 16;
     key16.setRange(0, keyLen, psk);
 
-    final cipher = ECBBlockCipher(AESFastEngine());
+    final cipher = ECBBlockCipher(AESEngine());
     cipher.init(false, KeyParameter(key16));
     final out = Uint8List(cipherText.length);
     for (var i = 0; i < cipherText.length; i += 16) {
@@ -2992,7 +2991,6 @@ const int _phVerMask = 0x03;
 
 const int _routeTransportFlood = 0x00;
 const int _routeFlood = 0x01;
-const int _routeDirect = 0x02;
 const int _routeTransportDirect = 0x03;
 
 const int _payloadTypeGroupText = 0x05;

lib/main.dart

@@ -27,7 +27,7 @@ void main() async {
   final storage = StorageService();
   final connector = MeshCoreConnector();
   final pathHistoryService = PathHistoryService(storage);
-  final retryService = MessageRetryService(storage);
+  final retryService = MessageRetryService();
   final appSettingsService = AppSettingsService();
   final bleDebugLogService = BleDebugLogService();
   final appDebugLogService = AppDebugLogService();

lib/screens/map_screen.dart

@@ -388,8 +388,9 @@ class _MapScreenState extends State<MapScreen> {
       if (!contact.hasLocation) continue;
 
       // Apply node type filters
-      if (contact.type == advTypeRepeater && !settings.mapShowRepeaters)
+      if (contact.type == advTypeRepeater && !settings.mapShowRepeaters) {
         continue;
+      }
       if (contact.type == advTypeChat && !settings.mapShowChatNodes) continue;
       if (contact.type != advTypeChat &&
           contact.type != advTypeRepeater &&

lib/screens/repeater_settings_screen.dart

@@ -895,7 +895,7 @@ class _RepeaterSettingsScreenState extends State<RepeaterSettingsScreen> {
             ),
             const SizedBox(height: 16),
             DropdownButtonFormField<int>(
-              value: _bandwidth,
+              initialValue: _bandwidth,
               decoration: InputDecoration(
                 labelText: l10n.repeater_bandwidth,
                 border: const OutlineInputBorder(),
@@ -917,7 +917,7 @@ class _RepeaterSettingsScreenState extends State<RepeaterSettingsScreen> {
             ),
             const SizedBox(height: 16),
             DropdownButtonFormField<int>(
-              value: _spreadingFactor,
+              initialValue: _spreadingFactor,
               decoration: InputDecoration(
                 labelText: l10n.repeater_spreadingFactor,
                 border: const OutlineInputBorder(),
@@ -939,7 +939,7 @@ class _RepeaterSettingsScreenState extends State<RepeaterSettingsScreen> {
             ),
             const SizedBox(height: 16),
             DropdownButtonFormField<int>(
-              value: _codingRate,
+              initialValue: _codingRate,
               decoration: InputDecoration(
                 labelText: l10n.repeater_codingRate,
                 border: const OutlineInputBorder(),

lib/screens/telemetry_screen.dart

@@ -1,7 +1,4 @@
 import 'dart:async';
-import 'dart:convert';
-import 'dart:math';
-import 'dart:typed_data';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
@@ -34,7 +31,6 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
   static const int _statusResponseBytes =
       _statusPayloadOffset + _statusStatsSize;
   Uint8List _tagData = Uint8List(4);
-  int _timeEstment = 0;
 
   bool _isLoading = false;
   bool _isLoaded = false;
@@ -64,18 +60,19 @@ class _TelemetryScreenState extends State<TelemetryScreen> {
 
       if (frame[0] == respCodeSent) {
         _tagData = frame.sublist(2, 6);
-        _timeEstment = frame.buffer.asByteData().getUint32(6, Endian.little);
       }
 
       // Check if it's a binary response
       if (frame[0] == pushCodeBinaryResponse &&
           listEquals(frame.sublist(2, 6), _tagData)) {
-        _handleStatusResponse(context, frame.sublist(6));
+        if (!mounted) return;
+        _handleStatusResponse(frame.sublist(6));
       }
     });
   }
 
-  void _handleStatusResponse(BuildContext context, Uint8List frame) {
+  void _handleStatusResponse(Uint8List frame) {
+    if (!mounted) return;
     setState(() {
       _parsedTelemetry = CayenneLpp.parseByChannel(frame);
     });

lib/services/ble_debug_log_service.dart

@@ -86,14 +86,26 @@ class BleDebugLogService extends ChangeNotifier {
   }
 
   String _describeFrame(int code, Uint8List frame, bool outgoing, String? note) {
-    final label = _codeLabel(code);
+    final label = _codeLabel(code, outgoing: outgoing);
     final prefix = outgoing ? 'TX' : 'RX';
     final extra = _frameDetail(code, frame);
     final noteText = note != null ? ' • $note' : '';
     return '$prefix $label$extra$noteText';
   }
 
-  String _codeLabel(int code) {
+  String _codeLabel(int code, {required bool outgoing}) {
+    if (outgoing) {
+      return _commandLabel(code) ?? 'CODE_$code';
+    }
+
+    final pushLabel = _pushLabel(code);
+    if (pushLabel != null) return pushLabel;
+    final responseLabel = _responseLabel(code);
+    if (responseLabel != null) return responseLabel;
+    return 'CODE_$code';
+  }
+
+  String? _commandLabel(int code) {
     switch (code) {
       case cmdAppStart:
         return 'CMD_APP_START';
@@ -135,6 +147,13 @@ class BleDebugLogService extends ChangeNotifier {
         return 'CMD_SET_CHANNEL';
       case cmdGetRadioSettings:
         return 'CMD_GET_RADIO_SETTINGS';
+      default:
+        return null;
+    }
+  }
+
+  String? _responseLabel(int code) {
+    switch (code) {
       case respCodeOk:
         return 'RESP_CODE_OK';
       case respCodeErr:
@@ -167,6 +186,13 @@ class BleDebugLogService extends ChangeNotifier {
         return 'RESP_CODE_CHANNEL_INFO';
       case respCodeRadioSettings:
         return 'RESP_CODE_RADIO_SETTINGS';
+      default:
+        return null;
+    }
+  }
+
+  String? _pushLabel(int code) {
+    switch (code) {
       case pushCodeAdvert:
         return 'PUSH_CODE_ADVERT';
       case pushCodePathUpdated:
@@ -184,7 +210,7 @@ class BleDebugLogService extends ChangeNotifier {
       case pushCodeNewAdvert:
         return 'PUSH_CODE_NEW_ADVERT';
       default:
-        return 'CODE_$code';
+        return null;
     }
   }
 

lib/services/message_retry_service.dart

@@ -6,7 +6,6 @@ import 'package:crypto/crypto.dart';
 import '../models/contact.dart';
 import '../models/message.dart';
 import '../models/path_selection.dart';
-import 'storage_service.dart';
 import 'app_settings_service.dart';
 import 'app_debug_log_service.dart';
 
@@ -36,7 +35,6 @@ class MessageRetryService extends ChangeNotifier {
   static const int maxRetries = 5;
   static const int maxAckHistorySize = 100;
 
-  final StorageService _storage;
   final Map<String, Timer> _timeoutTimers = {};
   final Map<String, Message> _pendingMessages = {};
   final Map<String, Contact> _pendingContacts = {};
@@ -59,7 +57,7 @@ class MessageRetryService extends ChangeNotifier {
   AppDebugLogService? _debugLogService;
   Function(String, PathSelection, bool, int?)? _recordPathResultCallback;
 
-  MessageRetryService(this._storage);
+  MessageRetryService();
 
   void initialize({
     required Function(Contact, String, int, int) sendMessageCallback,