Upgrade flutter packages and limit

lib/main.dart

@@ -17,7 +17,6 @@ import 'providers/app_provider.dart';
 import 'providers/sensors_provider.dart';
 import 'services/voice_codec_service.dart';
 import 'services/voice_player_service.dart';
-import 'services/tile_cache_service.dart';
 import 'services/notification_service.dart';
 import 'services/locale_preferences.dart';
 import 'services/update_checker_service.dart';
@@ -248,18 +247,14 @@ class _MeshCoreSarAppState extends State<MeshCoreSarApp> {
         // Image provider (fragment reassembly + outgoing session cache)
         ChangeNotifierProvider(create: (_) => ip.ImageProvider()),
 
-        // Tile cache service
-        Provider(create: (_) => TileCacheService()),
-
         // App provider that coordinates everything
         // VoiceProvider is read via context.read inside create since it's already registered above
-        ChangeNotifierProxyProvider6<
+        ChangeNotifierProxyProvider5<
           ConnectionProvider,
           ContactsProvider,
           MessagesProvider,
           DrawingProvider,
           ChannelsProvider,
-          TileCacheService,
           AppProvider
         >(
           create: (context) => AppProvider(
@@ -270,7 +265,6 @@ class _MeshCoreSarAppState extends State<MeshCoreSarApp> {
             channelsProvider: context.read<ChannelsProvider>(),
             voiceProvider: context.read<VoiceProvider>(),
             imageProvider: context.read<ip.ImageProvider>(),
-            tileCacheService: context.read<TileCacheService>(),
           ),
           update:
               (
@@ -280,7 +274,6 @@ class _MeshCoreSarAppState extends State<MeshCoreSarApp> {
                 messages,
                 drawings,
                 channels,
-                tileCache,
                 previous,
               ) =>
                   previous ??
@@ -292,7 +285,6 @@ class _MeshCoreSarAppState extends State<MeshCoreSarApp> {
                     channelsProvider: channels,
                     voiceProvider: context.read<VoiceProvider>(),
                     imageProvider: context.read<ip.ImageProvider>(),
-                    tileCacheService: tileCache,
                   ),
         ),
       ],

lib/models/map_layer.dart

@@ -1,4 +1,3 @@
-import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart';
 import '../l10n/app_localizations.dart';
@@ -10,6 +9,7 @@ enum MapLayerType {
   googleHybrid,
   googleRoadmap,
   googleTerrain,
+  // Kept for stored preference compatibility after MBTiles removal.
   vectorMbtiles,
   wmsBase,
 }
@@ -21,13 +21,6 @@ class MapLayer {
   final String attribution;
   final double maxZoom;
 
-  // Vector tile specific properties
-  final bool isVector;
-  final File? mbtilesFile;
-  final String? styleUrl;
-  final String? sourceName;
-  final bool? isGzipped;
-
   // WMS specific properties
   final bool isWms;
   final String? wmsBaseUrl;
@@ -43,11 +36,6 @@ class MapLayer {
     required this.urlTemplate,
     required this.attribution,
     required this.maxZoom,
-    this.isVector = false,
-    this.mbtilesFile,
-    this.styleUrl,
-    this.sourceName,
-    this.isGzipped,
     this.isWms = false,
     this.wmsBaseUrl,
     this.wmsLayers,
@@ -74,7 +62,7 @@ class MapLayer {
       case MapLayerType.googleTerrain:
         return localizations.googleTerrain;
       case MapLayerType.vectorMbtiles:
-        // For vector tiles, use the name from metadata
+        // Legacy value kept only for preference migration compatibility.
         return name;
       case MapLayerType.wmsBase:
         // For WMS layers, use the name (will be localized separately)
@@ -182,28 +170,4 @@ class MapLayer {
   static MapLayer fromType(MapLayerType type) {
     return allLayers.firstWhere((layer) => layer.type == type);
   }
-
-  /// Create a MapLayer from an MBTiles file
-  static MapLayer fromMbtilesFile({
-    required String name,
-    required File mbtilesFile,
-    required String styleUrl,
-    required String sourceName,
-    required double maxZoom,
-    required bool isGzipped,
-    String? attribution,
-  }) {
-    return MapLayer(
-      type: MapLayerType.vectorMbtiles,
-      name: name,
-      urlTemplate: '', // Not used for vector tiles
-      attribution: attribution ?? 'MBTiles',
-      maxZoom: maxZoom,
-      isVector: true,
-      mbtilesFile: mbtilesFile,
-      styleUrl: styleUrl,
-      sourceName: sourceName,
-      isGzipped: isGzipped,
-    );
-  }
 }

lib/providers/app_provider.dart

@@ -11,7 +11,6 @@ import 'voice_provider.dart';
 import 'image_provider.dart' as ip;
 import 'helpers/fragment_ack_wait_registry.dart';
 import 'helpers/session_metadata_restore.dart';
-import '../services/tile_cache_service.dart';
 import '../services/location_tracking_service.dart';
 import '../services/packet_capture_storage_service.dart';
 import '../models/contact.dart';
@@ -24,6 +23,7 @@ import '../utils/voice_message_parser.dart';
 import '../utils/image_message_parser.dart';
 import '../utils/media_swarm_protocol.dart';
 import '../utils/message_airtime_estimator.dart';
+import '../utils/fast_gps_packet.dart';
 
 /// Main App Provider - coordinates all other providers
 class AppProvider with ChangeNotifier {
@@ -35,7 +35,6 @@ class AppProvider with ChangeNotifier {
   final ChannelsProvider channelsProvider;
   final VoiceProvider voiceProvider;
   final ip.ImageProvider imageProvider;
-  final TileCacheService tileCacheService;
   final LocationTrackingService locationTrackingService =
       LocationTrackingService();
   final PacketCaptureStorageService packetCaptureStorageService =
@@ -79,6 +78,7 @@ class AppProvider with ChangeNotifier {
   final Map<String, Future<bool>> _pendingMediaSwarmFetches = {};
   final Map<String, Map<String, MediaSwarmAvailability>>
   _pendingMediaSwarmResponses = {};
+  bool _fastLocationScreenActive = false;
   Timer? _packetCaptureFlushTimer;
   String? _lastPersistedPacketSignature;
   bool _isPersistingPacketCapture = false;
@@ -91,10 +91,8 @@ class AppProvider with ChangeNotifier {
     required this.channelsProvider,
     required this.voiceProvider,
     required this.imageProvider,
-    required this.tileCacheService,
   }) {
     _setupCallbacks();
-    _initializeTileCache();
     _initializeLocationTracking();
     _loadSimpleMode();
     _loadMapEnabled();
@@ -436,16 +434,6 @@ class AppProvider with ChangeNotifier {
     }
   }
 
-  /// Initialize tile cache service
-  Future<void> _initializeTileCache() async {
-    try {
-      await tileCacheService.initialize();
-      debugPrint('Tile cache initialized');
-    } catch (e) {
-      debugPrint('Error initializing tile cache: $e');
-    }
-  }
-
   /// Initialize location tracking service
   Future<void> _initializeLocationTracking() async {
     try {
@@ -473,6 +461,10 @@ class AppProvider with ChangeNotifier {
         );
       };
 
+      locationTrackingService.onFastLocationUpdate = (position, reason) {
+        unawaited(_sendFastLocationUpdate(position, reason: reason));
+      };
+
       debugPrint('✅ [AppProvider] Location tracking service initialized');
     } catch (e) {
       debugPrint('❌ [AppProvider] Error initializing location tracking: $e');
@@ -836,6 +828,18 @@ class AppProvider with ChangeNotifier {
     // Magic 0x69 'i' = image fetch request; 0x56 'V' = voice packet.
     // Magic 0x49 'I' = image packet.
     connectionProvider.onRawDataReceived = (payload, snrRaw, rssiDbm) {
+      final fastGpsPacket = FastGpsPacket.tryParseBinary(payload);
+      if (fastGpsPacket != null) {
+        final sender = _resolveContactByPrefixHex(fastGpsPacket.senderKey6);
+        if (sender != null) {
+          contactsProvider.updateFastGps(
+            sender.publicKey.sublist(0, 6),
+            fastGpsPacket,
+          );
+        }
+        return;
+      }
+
       final rawProbeRequest = RawRouteProbeRequest.tryParseBinary(payload);
       if (rawProbeRequest != null) {
         debugPrint(
@@ -1382,6 +1386,46 @@ class AppProvider with ChangeNotifier {
     return contactsProvider.findContactByPrefixHex(prefixHex.toLowerCase());
   }
 
+  void setFastLocationUiActive(bool isActive) {
+    if (_fastLocationScreenActive == isActive) return;
+    _fastLocationScreenActive = isActive;
+    locationTrackingService.setFastLocationActiveUse(isActive);
+  }
+
+  Future<void> _sendFastLocationUpdate(
+    dynamic position, {
+    required String reason,
+  }) async {
+    if (!connectionProvider.deviceInfo.isConnected) {
+      return;
+    }
+
+    final publicKey = connectionProvider.deviceInfo.publicKey;
+    if (publicKey == null || publicKey.length < 6) {
+      return;
+    }
+
+    final senderKey6 = publicKey
+        .sublist(0, 6)
+        .map((b) => b.toRadixString(16).padLeft(2, '0'))
+        .join();
+    final packet = FastGpsPacket(
+      senderKey6: senderKey6,
+      latitude: position.latitude as double,
+      longitude: position.longitude as double,
+      timestampSeconds: DateTime.now().millisecondsSinceEpoch ~/ 1000,
+    );
+    debugPrint(
+      '📍 [AppProvider] Sending fast GPS update ($reason): '
+      '${position.latitude}, ${position.longitude}',
+    );
+    try {
+      await connectionProvider.sendRawPrivateMulticast(packet.encodeBinary());
+    } catch (e) {
+      debugPrint('⚠️ [AppProvider] Fast GPS send failed: $e');
+    }
+  }
+
   Contact? _resolveVoiceFetchRequester(VoiceFetchRequest request) {
     final liveContact = _resolveContactByPrefixHex(request.requesterKey6);
     if (liveContact != null) {
@@ -2294,6 +2338,7 @@ class AppProvider with ChangeNotifier {
     locationTrackingService.onBroadcastSent = null;
     locationTrackingService.onError = null;
     locationTrackingService.onTrackingStateChanged = null;
+    locationTrackingService.onFastLocationUpdate = null;
     // Dispose the location tracking service to stop GPS stream and clean up resources
     locationTrackingService.dispose();
     for (final timer in _voiceMissingRetryTimers.values) {

lib/providers/connection_provider.dart

@@ -1290,6 +1290,19 @@ class ConnectionProvider with ChangeNotifier {
     );
   }
 
+  /// Send a raw private zero-hop payload.
+  ///
+  /// This wraps the raw custom transport using an empty path to match the
+  /// firmware's private multicast behavior.
+  Future<void> sendRawPrivateMulticast(Uint8List payload) async {
+    if (!_activeService.isConnected) return;
+    await _activeService.sendRawVoicePacket(
+      contactPathLen: 0,
+      contactPath: Uint8List(0),
+      payload: payload,
+    );
+  }
+
   /// Request telemetry from contact
   ///
   /// COMPATIBILITY NOTE: This method sends CMD_SEND_TELEMETRY_REQ (39).

lib/providers/contacts_provider.dart

@@ -4,6 +4,7 @@ import '../models/contact.dart';
 import '../models/message_contact_location.dart';
 import '../services/cayenne_lpp_parser.dart';
 import '../services/contact_storage_service.dart';
+import '../utils/fast_gps_packet.dart';
 import '../utils/key_comparison.dart';
 
 class PendingAdvert {
@@ -464,6 +465,42 @@ class ContactsProvider with ChangeNotifier {
     }
   }
 
+  void updateFastGps(Uint8List publicKeyPrefix, FastGpsPacket packet) {
+    final contact = _findContactByPrefix(publicKeyPrefix);
+    if (contact == null) {
+      debugPrint(
+        '⚠️ [ContactsProvider] Fast GPS sender not found: ${packet.senderKey6}',
+      );
+      return;
+    }
+
+    final updatedTelemetry = _mergeTelemetryForContact(
+      existingTelemetry: contact.telemetry,
+      incomingTelemetry: ContactTelemetry(
+        gpsLocation: LatLng(packet.latitude, packet.longitude),
+        batteryPercentage: null,
+        batteryMilliVolts: null,
+        temperature: null,
+        timestamp: DateTime.fromMillisecondsSinceEpoch(
+          packet.timestampSeconds * 1000,
+        ),
+        humidity: null,
+        pressure: null,
+        extraSensorData: null,
+      ),
+    );
+
+    final updatedContact = contact.copyWith(
+      telemetry: updatedTelemetry,
+      lastAdvert: packet.timestampSeconds,
+      advLat: _coordinateToAdvertMicrodegrees(packet.latitude),
+      advLon: _coordinateToAdvertMicrodegrees(packet.longitude),
+    );
+    _contacts[contact.publicKeyHex] = updatedContact;
+    _persistContacts();
+    notifyListeners();
+  }
+
   bool _isInvalidTelemetryGps(LatLng? location) {
     if (location == null) return false;
     final lat = location.latitude;

lib/screens/home_screen.dart

@@ -14,7 +14,6 @@ import 'messages_tab.dart';
 import 'contacts_tab.dart';
 import 'sensors_tab.dart';
 import 'map_tab.dart';
-import 'map_management_screen.dart';
 import 'settings_screen.dart';
 import 'device_config_screen.dart';
 import 'packet_log_screen.dart';
@@ -49,7 +48,8 @@ class HomeScreen extends StatefulWidget {
   State<HomeScreen> createState() => _HomeScreenState();
 }
 
-class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
+class _HomeScreenState extends State<HomeScreen>
+    with TickerProviderStateMixin, WidgetsBindingObserver {
   late TabController _tabController;
   late final AppProvider _appProvider;
   int _currentIndex = 0;
@@ -58,6 +58,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   bool _isMapEnabled = true;
   bool _isContactsEnabled = true;
   bool _isSensorsEnabled = false;
+  AppLifecycleState _lifecycleState = AppLifecycleState.resumed;
 
   List<_HomeTab> get _enabledTabs {
     return [
@@ -79,6 +80,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   @override
   void initState() {
     super.initState();
+    WidgetsBinding.instance.addObserver(this);
     _appProvider = context.read<AppProvider>();
     _isMapEnabled = _appProvider.isMapEnabled;
     _isContactsEnabled = _appProvider.isContactsEnabled;
@@ -184,6 +186,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   }
 
   void _handleTabActivated(_HomeTab tab) {
+    _syncFastLocationUiState();
     WidgetsBinding.instance.addPostFrameCallback((_) {
       if (!mounted) return;
 
@@ -202,6 +205,20 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
     });
   }
 
+  void _syncFastLocationUiState() {
+    final isActiveTab =
+        _currentTab == _HomeTab.map || _currentTab == _HomeTab.messages;
+    _appProvider.setFastLocationUiActive(
+      _lifecycleState == AppLifecycleState.resumed && isActiveTab,
+    );
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    _lifecycleState = state;
+    _syncFastLocationUiState();
+  }
+
   Future<void> _loadRxTxPreference() async {
     final prefs = await SharedPreferences.getInstance();
     if (mounted) {
@@ -213,6 +230,8 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
 
   @override
   void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    _appProvider.setFastLocationUiActive(false);
     _appProvider.removeListener(_handleAppProviderChanged);
     _tabController.removeListener(_onTabChanged);
     _tabController.dispose();
@@ -580,30 +599,6 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
                 PopupMenuButton(
                   icon: const Icon(Icons.more_vert),
                   itemBuilder: (context) => [
-                    PopupMenuItem(
-                      child: Row(
-                        children: [
-                          const Icon(Icons.map),
-                          const SizedBox(width: 8),
-                          Text(AppLocalizations.of(context)!.mapManagement),
-                        ],
-                      ),
-                      onTap: () {
-                        // Capture context-dependent objects before async gap
-                        final navigator = Navigator.of(context);
-                        final appProvider = context.read<AppProvider>();
-                        Future.delayed(Duration.zero, () {
-                          if (!mounted) return;
-                          navigator.push(
-                            MaterialPageRoute(
-                              builder: (context) => MapManagementScreen(
-                                tileCacheService: appProvider.tileCacheService,
-                              ),
-                            ),
-                          );
-                        });
-                      },
-                    ),
                     PopupMenuItem(
                       child: Row(
                         children: [
@@ -854,10 +849,11 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
                               Text(
                                 deviceInfo.selfName ??
                                     AppLocalizations.of(context)!.appTitle,
-                                style: (isTight
-                                        ? theme.textTheme.titleSmall
-                                        : theme.textTheme.titleMedium)
-                                    ?.copyWith(fontWeight: FontWeight.w700),
+                                style:
+                                    (isTight
+                                            ? theme.textTheme.titleSmall
+                                            : theme.textTheme.titleMedium)
+                                        ?.copyWith(fontWeight: FontWeight.w700),
                                 overflow: TextOverflow.ellipsis,
                               ),
                               const SizedBox(height: 2),
@@ -927,7 +923,8 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
                             Navigator.push(
                               context,
                               MaterialPageRoute(
-                                builder: (context) => const DeviceConfigScreen(),
+                                builder: (context) =>
+                                    const DeviceConfigScreen(),
                               ),
                             );
                           },

lib/screens/map_tab.dart

@@ -1,5 +1,4 @@
 import 'dart:async';
-import 'dart:convert';
 import 'dart:typed_data';
 import 'package:flutter/material.dart';
 import 'package:flutter_map/flutter_map.dart' as flutter_map;
@@ -9,9 +8,6 @@ import 'package:provider/provider.dart';
 import 'package:geolocator/geolocator.dart';
 import 'package:flutter_compass/flutter_compass.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:vector_map_tiles/vector_map_tiles.dart';
-import 'package:vector_tile_renderer/vector_tile_renderer.dart' as vtr;
-import 'package:http/http.dart' as http;
 import '../utils/slovenian_crs.dart';
 import '../providers/contacts_provider.dart';
 import '../providers/messages_provider.dart';
@@ -23,11 +19,9 @@ import '../models/contact.dart';
 import '../models/sar_marker.dart';
 import '../models/map_layer.dart';
 import '../models/message.dart';
-import '../services/tile_cache_service.dart';
 import '../services/background_location_service.dart';
 import '../services/location_tracking_service.dart';
 import '../services/map_marker_service.dart';
-import '../services/mbtiles_service.dart';
 import '../services/trail_color_service.dart';
 import '../widgets/map_debug_info.dart';
 import '../widgets/map/compass_widget.dart';
@@ -37,11 +31,9 @@ import '../widgets/map/drawing_toolbar.dart';
 import '../widgets/map/location_trail_layer.dart';
 import '../widgets/map/trail_controls.dart';
 import '../widgets/map/map_message_overlay.dart';
-import '../widgets/map/download_area_overlay.dart';
 import '../widgets/messages/sar_update_sheet.dart';
 import '../utils/key_comparison.dart';
 import '../l10n/app_localizations.dart';
-import 'map_management_screen.dart';
 
 class MapTab extends StatefulWidget {
   final Function(bool)? onFullscreenChanged;
@@ -59,11 +51,15 @@ class MapTab extends StatefulWidget {
 
 class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
   final MapController _mapController = MapController();
-  late final TileCacheService _tileCache;
+  static final TileProvider _tileProvider = NetworkTileProvider(
+    cachingProvider: BuiltInMapCachingProvider.getOrCreateInstance(
+      maxCacheSize: 10_000_000_000,
+      overrideFreshAge: const Duration(days: 365),
+    ),
+  );
   // DO NOT create a new LocationTrackingService instance here
   // Use the singleton from AppProvider instead via _locationService getter
   final MapMarkerService _markerService = MapMarkerService();
-  bool _isInitialized = false;
   bool _isMapReady = false; // Track when map widget is actually rendered
   MapLayer _currentLayer = MapLayer.openStreetMap;
   double? _compassHeading; // Compass sensor heading
@@ -78,9 +74,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
   bool _isDisposing = false; // Flag to prevent updates during disposal
   MapProvider? _mapProvider;
 
-  // MBTiles layers
-  List<MapLayer> _mbtilesLayers = [];
-
   // Store original location callback to restore in dispose
   void Function(Position)? _originalLocationCallback;
 
@@ -88,10 +81,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
   late final MapLayer _slovenianAerialLayer;
   late final MapLayer _dtk25Layer;
 
-  // Vector tile theme
-  vtr.Theme? _vectorTheme;
-  bool _isLoadingTheme = false;
-
   // Dropped pin state
   LatLng? _droppedPinLocation;
   bool _isDraggingPin = false;
@@ -117,13 +106,11 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
   @override
   void initState() {
     super.initState();
-    _tileCache = context.read<TileCacheService>();
     // Initialize Slovenian WMS layers with CRS
     _slovenianAerialLayer = MapLayer.getSlovenianAerial2024(slovenianCrs);
     _dtk25Layer = MapLayer.getDTK25(slovenianCrs);
     _loadSettings();
-    _loadMbtilesLayers();
-    _initializeTileCache();
+    _markMapReadyWhenMounted();
     _setupLocationCallbacks();
     _startCompassTracking();
 
@@ -242,36 +229,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
     });
   }
 
-  /// Load MBTiles layers from file system
-  Future<void> _loadMbtilesLayers() async {
-    try {
-      final mbtilesService = MbtilesService();
-      final metadata = await mbtilesService.getAllMetadata();
-
-      if (mounted) {
-        setState(() {
-          _mbtilesLayers = metadata.map((meta) {
-            // Determine if data is gzipped (for Geofabrik files)
-            final isGzipped = meta.format == 'pbf';
-
-            return MapLayer.fromMbtilesFile(
-              name: meta.name,
-              mbtilesFile: meta.file,
-              styleUrl: 'https://tiles.openfreemap.org/styles/bright',
-              sourceName: 'openmaptiles',
-              maxZoom: 20.0, // Override to 20 for overzooming
-              isGzipped: isGzipped,
-              attribution: meta.attribution,
-            );
-          }).toList();
-        });
-        debugPrint('Loaded ${_mbtilesLayers.length} MBTiles layers');
-      }
-    } catch (e) {
-      debugPrint('Error loading MBTiles layers: $e');
-    }
-  }
-
   Future<void> _loadSettings() async {
     final prefs = await SharedPreferences.getInstance();
     if (mounted) {
@@ -282,8 +239,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
 
       // Load last map layer
       final lastLayerType = prefs.getInt('map_last_layer_type');
-      final lastLayerName = prefs.getString('map_last_layer_name');
-
       setState(() {
         _rotateMarkerWithHeading =
             prefs.getBool('map_rotate_with_heading') ?? false;
@@ -304,17 +259,11 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
           _savedMapZoom = lastZoom;
         }
 
-        // Restore last used map layer (by type and name for MBTiles)
+        // Restore last used map layer.
         if (lastLayerType != null) {
           final layerType = MapLayerType.values[lastLayerType];
-          if (layerType == MapLayerType.vectorMbtiles &&
-              lastLayerName != null) {
-            // Find MBTiles layer by name
-            final mbtilesLayer = _mbtilesLayers.firstWhere(
-              (layer) => layer.name == lastLayerName,
-              orElse: () => MapLayer.openStreetMap,
-            );
-            _currentLayer = mbtilesLayer;
+          if (layerType == MapLayerType.vectorMbtiles) {
+            _currentLayer = MapLayer.openStreetMap;
           } else if (layerType == MapLayerType.wmsBase) {
             // Use Slovenian aerial layer if that's what was saved
             _currentLayer = _slovenianAerialLayer;
@@ -347,11 +296,9 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
       _backgroundTrackingEnabled,
     );
 
-    // Save layer type and name (for MBTiles layers)
+    // Save layer type.
     await prefs.setInt('map_last_layer_type', _currentLayer.type.index);
-    if (_currentLayer.type == MapLayerType.vectorMbtiles) {
-      await prefs.setString('map_last_layer_name', _currentLayer.name);
-    }
+    await prefs.remove('map_last_layer_name');
   }
 
   Future<void> _saveMapPosition() async {
@@ -384,49 +331,17 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
     }
   }
 
-  Future<void> _initializeTileCache() async {
-    try {
-      await _tileCache.initialize();
-      if (mounted) {
+  void _markMapReadyWhenMounted() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
+      Future.delayed(const Duration(milliseconds: 100), () {
+        if (!mounted) return;
         setState(() {
-          _isInitialized = true;
+          _isMapReady = true;
         });
-        // Wait for the map to render, then mark it as ready
-        WidgetsBinding.instance.addPostFrameCallback((_) {
-          if (mounted) {
-            // Give the map widget one more frame to fully initialize
-            Future.delayed(const Duration(milliseconds: 100), () {
-              if (mounted) {
-                setState(() {
-                  _isMapReady = true;
-                });
-                debugPrint('Map is now ready for controller operations');
-              }
-            });
-          }
-        });
-      }
-    } catch (e) {
-      debugPrint('Error initializing tile cache: $e');
-      if (mounted) {
-        setState(() {
-          _isInitialized = true; // Continue without caching
-        });
-        // Still mark map as ready after a delay
-        WidgetsBinding.instance.addPostFrameCallback((_) {
-          if (mounted) {
-            Future.delayed(const Duration(milliseconds: 100), () {
-              if (mounted) {
-                setState(() {
-                  _isMapReady = true;
-                });
-                debugPrint('Map is now ready for controller operations');
-              }
-            });
-          }
-        });
-      }
-    }
+        debugPrint('Map is now ready for controller operations');
+      });
+    });
   }
 
   @override
@@ -483,45 +398,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
     );
   }
 
-  /// Load vector tile theme from URL
-  Future<void> _loadVectorTheme(String styleUrl) async {
-    if (_isLoadingTheme) return;
-
-    setState(() {
-      _isLoadingTheme = true;
-    });
-
-    try {
-      final response = await http.get(Uri.parse(styleUrl));
-      if (response.statusCode == 200) {
-        final styleJson = jsonDecode(response.body) as Map<String, Object?>;
-        final theme = vtr.ThemeReader().read(styleJson);
-
-        if (mounted) {
-          setState(() {
-            _vectorTheme = theme;
-            _isLoadingTheme = false;
-          });
-        }
-      } else {
-        throw Exception('Failed to load style: ${response.statusCode}');
-      }
-    } catch (e) {
-      debugPrint('Error loading vector theme: $e');
-      if (mounted) {
-        setState(() {
-          _isLoadingTheme = false;
-        });
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: Text('Failed to load map style: $e'),
-            backgroundColor: Colors.red,
-          ),
-        );
-      }
-    }
-  }
-
   void _showLayerSelector(BuildContext context) {
     showModalBottomSheet(
       context: context,
@@ -544,14 +420,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                       ),
                     ),
                   ),
-                  IconButton(
-                    icon: const Icon(Icons.download),
-                    tooltip: AppLocalizations.of(context)!.downloadVisibleArea,
-                    onPressed: () {
-                      Navigator.pop(context);
-                      _navigateToDownload(context);
-                    },
-                  ),
                 ],
               ),
             ),
@@ -649,65 +517,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                       },
                     ),
                   ],
-                  // Offline MBTiles layers section
-                  if (_mbtilesLayers.isNotEmpty) ...[
-                    const Divider(),
-                    Padding(
-                      padding: const EdgeInsets.symmetric(
-                        horizontal: 16,
-                        vertical: 8,
-                      ),
-                      child: Text(
-                        AppLocalizations.of(context)!.offlineLayers,
-                        style: Theme.of(context).textTheme.labelLarge?.copyWith(
-                          color: Colors.grey[600],
-                        ),
-                      ),
-                    ),
-                    ..._mbtilesLayers.map(
-                      (layer) => ListTile(
-                        leading: _currentLayer == layer
-                            ? const Icon(
-                                Icons.check_circle,
-                                color: Colors.green,
-                              )
-                            : Icon(
-                                layer.isVector ? Icons.layers : Icons.image,
-                                color: layer.isVector
-                                    ? Colors.blue
-                                    : Colors.orange,
-                              ),
-                        title: Text(layer.name),
-                        subtitle: Text(layer.attribution),
-                        onTap: () async {
-                          // Capture navigator before async operation
-                          final navigator = Navigator.of(context);
-                          // Load vector theme if switching to vector layer
-                          if (layer.isVector && layer.styleUrl != null) {
-                            navigator.pop();
-                            await _loadVectorTheme(layer.styleUrl!);
-                          }
-
-                          setState(() {
-                            _currentLayer = layer;
-                            // Clamp zoom level if current zoom exceeds new layer's max
-                            if (_isMapReady &&
-                                _mapController.camera.zoom > layer.maxZoom) {
-                              _mapController.move(
-                                _mapController.camera.center,
-                                layer.maxZoom,
-                              );
-                            }
-                          });
-                          _saveSettings();
-
-                          if (!layer.isVector && mounted) {
-                            navigator.pop();
-                          }
-                        },
-                      ),
-                    ),
-                  ],
                   // WMS Overlays section (only for Slovenian/Croatian regions and when WMS base layer is selected)
                   if ((AppLocalizations.of(context)!.localeName == 'sl' ||
                           AppLocalizations.of(context)!.localeName == 'hr') &&
@@ -899,21 +708,6 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
     );
   }
 
-  void _navigateToDownload(BuildContext context) {
-    if (!_isMapReady) return;
-
-    try {
-      // Get current map bounds
-      final bounds = _mapController.camera.visibleBounds;
-
-      // Enter download area selection mode (show preview overlay)
-      final mapProvider = context.read<MapProvider>();
-      mapProvider.enterDownloadAreaMode(bounds);
-    } catch (e) {
-      debugPrint('Error accessing map camera: $e');
-    }
-  }
-
   void _showOptionsMenu(BuildContext context) {
     showModalBottomSheet(
       context: context,
@@ -1412,8 +1206,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
         return Stack(
           children: [
             // Map widget
-            _isInitialized
-                ? Listener(
+            Listener(
                     onPointerMove: (PointerMoveEvent event) {
                       // Track pointer movement for mobile drag (onPointerHover doesn't work on mobile)
                       if (_isDraggingPin) {
@@ -1566,17 +1359,8 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                         },
                       ),
                       children: [
-                        // Render vector or raster tile layer based on layer type
-                        if (_currentLayer.isVector && _vectorTheme != null)
-                          VectorTileLayer(
-                            theme: _vectorTheme!,
-                            tileProviders: TileProviders({
-                              _currentLayer.sourceName ?? 'default': _tileCache
-                                  .getVectorTileProvider(_currentLayer)!,
-                            }),
-                            maximumZoom: _currentLayer.maxZoom,
-                          )
-                        else if (_currentLayer.isWms &&
+                        // Render raster or WMS tile layer based on layer type
+                        if (_currentLayer.isWms &&
                             _currentLayer.wmsBaseUrl != null &&
                             _currentLayer.crs != null)
                           // WMS Base Layer (e.g., Slovenian Aerial Imagery)
@@ -1591,9 +1375,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                               crs: _currentLayer.crs!,
                             ),
                             // Use cached tile provider for offline support
-                            tileProvider: _tileCache.getTileProviderForWms(
-                              _currentLayer,
-                            ),
+                            tileProvider: _tileProvider,
                             userAgentPackageName: 'com.meshcore.sar',
                             maxZoom: _currentLayer.maxZoom,
                             errorTileCallback: (tile, error, stackTrace) {
@@ -1602,13 +1384,10 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                               );
                             },
                           )
-                        else if (!_currentLayer.isVector &&
-                            !_currentLayer.isWms)
+                        else if (!_currentLayer.isWms)
                           flutter_map.TileLayer(
                             urlTemplate: _currentLayer.urlTemplate,
-                            tileProvider: _tileCache.getTileProvider(
-                              _currentLayer,
-                            ),
+                            tileProvider: _tileProvider,
                             userAgentPackageName: 'com.meshcore.sar',
                             maxZoom: _currentLayer.maxZoom,
                           ),
@@ -1632,23 +1411,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Cadastral Parcels',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geowebcache/service/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:kn_parcele',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1680,23 +1443,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Forest Roads',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:gozdne_ceste',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1728,23 +1475,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Hiking Trails',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:KGI_LINIJE_PLANINSKE_POTI_G',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1773,23 +1504,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Main Roads',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:KGI_LINIJE_CESTE_G',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1818,23 +1533,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'House Numbers',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:NEP_HISNE_STEVILKE',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1863,23 +1562,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Fire Hazard Zones',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:pozarna_ogrozenost',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1906,23 +1589,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Historical Fires',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:gozdni_pozari',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1951,23 +1618,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Firebreaks',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:protipozarne_preseke',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -1994,23 +1645,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Kras Fire Zones',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:pozarisce_kras',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -2039,23 +1674,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Place Names',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:zemljepisna_imena',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -2083,23 +1702,7 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                                 transparent: true,
                                 crs: slovenianCrs,
                               ),
-                              tileProvider: _tileCache.getTileProviderForWms(
-                                MapLayer(
-                                  type: MapLayerType.wmsBase,
-                                  name: 'Municipality Borders',
-                                  urlTemplate: '',
-                                  attribution: '© GURS',
-                                  maxZoom: 19,
-                                  isWms: true,
-                                  wmsBaseUrl:
-                                      'https://prostor.zgs.gov.si/geoserver/wms?',
-                                  wmsLayers: const [
-                                    'pregledovalnik:NEP_RPE_OBCINE',
-                                  ],
-                                  wmsFormat: 'image/png',
-                                  crs: slovenianCrs,
-                                ),
-                              ),
+                              tileProvider: _tileProvider,
                               userAgentPackageName: 'com.meshcore.sar',
                               maxZoom: 19,
                               errorTileCallback: (tile, error, stackTrace) {
@@ -2474,114 +2077,9 @@ class _MapTabState extends State<MapTab> with AutomaticKeepAliveClientMixin {
                             }
                           },
                         ),
-                        // Download area selection polygon (rendered on top when in selection mode)
-                        Consumer<MapProvider>(
-                          builder: (context, mapProvider, _) {
-                            if (!mapProvider.isSelectingDownloadArea ||
-                                mapProvider.downloadAreaBounds == null) {
-                              return const SizedBox.shrink();
-                            }
-                            final bounds = mapProvider.downloadAreaBounds!;
-
-                            // Add padding to the bounds so the rectangle is visible within the screen
-                            // Calculate 5% padding on each side
-                            final latPadding =
-                                (bounds.north - bounds.south) * 0.05;
-                            final lonPadding =
-                                (bounds.east - bounds.west) * 0.05;
-
-                            return PolygonLayer(
-                              polygons: [
-                                Polygon(
-                                  points: [
-                                    LatLng(
-                                      bounds.north - latPadding,
-                                      bounds.west + lonPadding,
-                                    ), // Top-left
-                                    LatLng(
-                                      bounds.north - latPadding,
-                                      bounds.east - lonPadding,
-                                    ), // Top-right
-                                    LatLng(
-                                      bounds.south + latPadding,
-                                      bounds.east - lonPadding,
-                                    ), // Bottom-right
-                                    LatLng(
-                                      bounds.south + latPadding,
-                                      bounds.west + lonPadding,
-                                    ), // Bottom-left
-                                  ],
-                                  color: Colors.blue.withValues(alpha: 0.2),
-                                  borderColor: Colors.blue,
-                                  borderStrokeWidth: 3.0,
-                                ),
-                              ],
-                            );
-                          },
-                        ),
-                      ],
-                    ),
-                  )
-                : Center(
-                    child: Column(
-                      mainAxisAlignment: MainAxisAlignment.center,
-                      children: [
-                        const CircularProgressIndicator(),
-                        const SizedBox(height: 16),
-                        Text(
-                          AppLocalizations.of(context)!.initializingMap,
-                          style: Theme.of(context).textTheme.bodyMedium,
-                        ),
                       ],
                     ),
                   ),
-            // Download area overlay (shown when in download area selection mode)
-            Consumer<MapProvider>(
-              builder: (context, mapProvider, _) {
-                if (!mapProvider.isSelectingDownloadArea ||
-                    mapProvider.downloadAreaBounds == null) {
-                  return const SizedBox.shrink();
-                }
-                return DownloadAreaOverlay(
-                  bounds: mapProvider.downloadAreaBounds!,
-                  onConfirm: () {
-                    // Navigate to map management screen with selected bounds
-                    final bounds = mapProvider.downloadAreaBounds!;
-                    final zoom = _mapController.camera.zoom.round();
-
-                    // Find matching layer from MapLayer.allLayers to avoid instance mismatch
-                    // Only pass initialLayer if it's in allLayers (standard layers only)
-                    MapLayer? initialLayer;
-                    try {
-                      initialLayer = MapLayer.allLayers.firstWhere(
-                        (layer) => layer.type == _currentLayer.type,
-                      );
-                    } catch (e) {
-                      // Current layer not in allLayers (WMS/vector), don't pass it
-                      initialLayer = null;
-                    }
-
-                    Navigator.of(context).push(
-                      MaterialPageRoute(
-                        builder: (context) => MapManagementScreen(
-                          tileCacheService: _tileCache,
-                          initialBounds: bounds,
-                          initialLayer: initialLayer,
-                          initialZoom: zoom,
-                        ),
-                      ),
-                    );
-
-                    // Exit download area selection mode
-                    mapProvider.exitDownloadAreaMode();
-                  },
-                  onCancel: () {
-                    // Exit download area selection mode
-                    mapProvider.exitDownloadAreaMode();
-                  },
-                );
-              },
-            ),
             // Exit fullscreen button - top left (only shown in fullscreen mode)
             if (_isFullscreen)
               Positioned(

lib/screens/settings_screen.dart

@@ -67,6 +67,9 @@ class _SettingsScreenState extends State<SettingsScreen> {
   Uint8List? _previewCompressedBytes;
   bool _isPreviewLoading = false;
   bool _showCurrentImagePreview = true;
+  bool _fastLocationUpdatesEnabled = false;
+  double _fastLocationMovementThresholdMeters = 10.0;
+  int _fastLocationActiveCadenceSeconds = 10;
   final ImagePicker _imagePicker = ImagePicker();
   final LocationTrackingService _locationService = LocationTrackingService();
 
@@ -81,6 +84,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
     _loadVoiceBitratePreference();
     _loadRouteHashSizePreference();
     _loadImagePreferences();
+    _loadFastLocationSettings();
   }
 
   @override
@@ -169,6 +173,108 @@ class _SettingsScreenState extends State<SettingsScreen> {
     await _refreshImageModePreview();
   }
 
+  Future<void> _loadFastLocationSettings() async {
+    await _locationService.loadSettings();
+    if (!mounted) return;
+    setState(() {
+      _fastLocationUpdatesEnabled = _locationService.fastLocationUpdatesEnabled;
+      _fastLocationMovementThresholdMeters =
+          _locationService.fastLocationMovementThresholdMeters;
+      _fastLocationActiveCadenceSeconds =
+          _locationService.fastLocationActiveCadenceSeconds;
+    });
+  }
+
+  Future<void> _setFastLocationUpdatesEnabled(bool enabled) async {
+    await _locationService.setFastLocationUpdatesEnabled(enabled);
+    if (!mounted) return;
+    setState(() {
+      _fastLocationUpdatesEnabled = _locationService.fastLocationUpdatesEnabled;
+    });
+  }
+
+  Future<void> _editFastLocationMovementThreshold() async {
+    final controller = TextEditingController(
+      text: _fastLocationMovementThresholdMeters.toStringAsFixed(0),
+    );
+    final value = await showDialog<double>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Fast GPS movement threshold'),
+        content: TextField(
+          controller: controller,
+          keyboardType: const TextInputType.numberWithOptions(decimal: true),
+          decoration: const InputDecoration(
+            labelText: 'Meters',
+            helperText: 'Valid range: 1 to 1000 meters',
+          ),
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: Text(AppLocalizations.of(context)!.cancel),
+          ),
+          FilledButton(
+            onPressed: () {
+              final parsed = double.tryParse(controller.text.trim());
+              if (parsed == null) return;
+              Navigator.pop(context, parsed.clamp(1.0, 1000.0));
+            },
+            child: const Text('Save'),
+          ),
+        ],
+      ),
+    );
+    if (value == null) return;
+    await _locationService.updateFastLocationMovementThreshold(value);
+    if (!mounted) return;
+    setState(() {
+      _fastLocationMovementThresholdMeters =
+          _locationService.fastLocationMovementThresholdMeters;
+    });
+  }
+
+  Future<void> _editFastLocationActiveCadence() async {
+    final controller = TextEditingController(
+      text: _fastLocationActiveCadenceSeconds.toString(),
+    );
+    final value = await showDialog<int>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Fast GPS active-use interval'),
+        content: TextField(
+          controller: controller,
+          keyboardType: TextInputType.number,
+          decoration: const InputDecoration(
+            labelText: 'Seconds',
+            helperText: 'Valid range: 5 to 60 seconds',
+          ),
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: Text(AppLocalizations.of(context)!.cancel),
+          ),
+          FilledButton(
+            onPressed: () {
+              final parsed = int.tryParse(controller.text.trim());
+              if (parsed == null) return;
+              Navigator.pop(context, parsed.clamp(5, 60));
+            },
+            child: const Text('Save'),
+          ),
+        ],
+      ),
+    );
+    if (value == null) return;
+    await _locationService.updateFastLocationActiveCadenceSeconds(value);
+    if (!mounted) return;
+    setState(() {
+      _fastLocationActiveCadenceSeconds =
+          _locationService.fastLocationActiveCadenceSeconds;
+    });
+  }
+
   Future<void> _saveImageMaxSize(int size) async {
     await ImagePreferences.setMaxSize(size);
     if (!mounted) return;
@@ -1018,6 +1124,31 @@ class _SettingsScreenState extends State<SettingsScreen> {
 
           _buildSectionHeader(AppLocalizations.of(context)!.permissionsSection),
           _buildSettingsCard([
+            SwitchListTile(
+              secondary: const Icon(Icons.gps_fixed),
+              title: const Text('Fast private GPS updates'),
+              subtitle: const Text(
+                'Use private zero-hop updates while moving significantly or while actively using map/messages.',
+              ),
+              value: _fastLocationUpdatesEnabled,
+              onChanged: _setFastLocationUpdatesEnabled,
+            ),
+            ListTile(
+              leading: const Icon(Icons.straighten),
+              title: const Text('Movement threshold'),
+              subtitle: Text(
+                '${_fastLocationMovementThresholdMeters.toStringAsFixed(0)} m',
+              ),
+              trailing: const Icon(Icons.chevron_right),
+              onTap: _editFastLocationMovementThreshold,
+            ),
+            ListTile(
+              leading: const Icon(Icons.timer),
+              title: const Text('Active-use update interval'),
+              subtitle: Text('$_fastLocationActiveCadenceSeconds s'),
+              trailing: const Icon(Icons.chevron_right),
+              onTap: _editFastLocationActiveCadence,
+            ),
             ListTile(
               leading: const Icon(Icons.location_on),
               title: Text(AppLocalizations.of(context)!.locationPermission),

lib/services/location_tracking_service.dart

@@ -41,6 +41,12 @@ class LocationTrackingService {
   static const String _prefKeyGpsUpdateDistance = 'map_gps_update_distance';
   static const String _prefKeyLastLat = 'background_last_lat';
   static const String _prefKeyLastLon = 'background_last_lon';
+  static const String _prefKeyFastLocationEnabled =
+      'fast_location_updates_enabled';
+  static const String _prefKeyFastMovementThreshold =
+      'fast_location_movement_threshold_meters';
+  static const String _prefKeyFastActiveCadence =
+      'fast_location_active_cadence_seconds';
 
   // ============================================================================
   // Configuration Properties
@@ -58,6 +64,15 @@ class LocationTrackingService {
   /// GPS update distance filter for position stream
   double gpsUpdateDistance = 10.0;
 
+  /// Whether private fast GPS updates are enabled
+  bool fastLocationUpdatesEnabled = false;
+
+  /// Distance threshold for fast GPS updates
+  double fastLocationMovementThresholdMeters = 10.0;
+
+  /// Cadence for active-use fast GPS updates
+  int fastLocationActiveCadenceSeconds = 10;
+
   // ============================================================================
   // State Properties
   // ============================================================================
@@ -84,6 +99,11 @@ class LocationTrackingService {
   /// Position stream subscription
   StreamSubscription<Position>? _positionSubscription;
 
+  Timer? _fastLocationTimer;
+  bool _isFastLocationActiveUse = false;
+  DateTime? _lastFastLocationSentAt;
+  Position? _lastFastLocationSentPosition;
+
   // ============================================================================
   // Callback Properties
   // ============================================================================
@@ -100,6 +120,9 @@ class LocationTrackingService {
   /// Called when tracking state changes
   void Function(bool isTracking)? onTrackingStateChanged;
 
+  /// Called when a fast private GPS update should be sent
+  void Function(Position position, String reason)? onFastLocationUpdate;
+
   // ============================================================================
   // Initialization
   // ============================================================================
@@ -178,7 +201,9 @@ class LocationTrackingService {
     for (int attempt = 0; attempt <= retryCount; attempt++) {
       try {
         if (attempt > 0) {
-          debugPrint('🔄 [LocationTracking] Retry attempt $attempt/$retryCount');
+          debugPrint(
+            '🔄 [LocationTracking] Retry attempt $attempt/$retryCount',
+          );
           // Exponential backoff: wait 2^attempt seconds before retry
           await Future.delayed(Duration(seconds: 1 << attempt));
         }
@@ -192,21 +217,29 @@ class LocationTrackingService {
 
         currentPosition = position;
         if (attempt > 0) {
-          debugPrint('✅ [LocationTracking] Position acquired after $attempt retries');
+          debugPrint(
+            '✅ [LocationTracking] Position acquired after $attempt retries',
+          );
         }
         return position;
       } catch (e) {
         final isLastAttempt = attempt == retryCount;
         if (isLastAttempt) {
-          debugPrint('❌ [LocationTracking] Failed to get position after $retryCount retries: $e');
+          debugPrint(
+            '❌ [LocationTracking] Failed to get position after $retryCount retries: $e',
+          );
           // Only call error callback on final failure, and make it user-friendly
           if (e.toString().contains('TimeoutException')) {
-            onError?.call('GPS signal weak. Position stream will continue trying...');
+            onError?.call(
+              'GPS signal weak. Position stream will continue trying...',
+            );
           } else {
             onError?.call('Failed to get GPS position. Check device settings.');
           }
         } else {
-          debugPrint('⚠️ [LocationTracking] Position attempt $attempt failed: $e');
+          debugPrint(
+            '⚠️ [LocationTracking] Position attempt $attempt failed: $e',
+          );
         }
 
         if (isLastAttempt) {
@@ -244,16 +277,16 @@ class LocationTrackingService {
   /// GPS tracking works WITHOUT BLE connection - device broadcasts are simply skipped.
   Future<bool> startTracking({double? distanceThreshold}) async {
     if (!_isInitialized) {
-      debugPrint(
-        '⚠️ [LocationTracking] Service not initialized',
-      );
+      debugPrint('⚠️ [LocationTracking] Service not initialized');
       onError?.call('Location tracking service not initialized');
       return false;
     }
 
     // Allow tracking without BLE connection - broadcasts will be skipped
     if (_bleService == null || !_bleService!.isConnected) {
-      debugPrint('ℹ️ [LocationTracking] Starting GPS tracking without BLE connection (broadcasts disabled)');
+      debugPrint(
+        'ℹ️ [LocationTracking] Starting GPS tracking without BLE connection (broadcasts disabled)',
+      );
     }
 
     // Check permissions
@@ -271,17 +304,20 @@ class LocationTrackingService {
 
     // Try to get initial position in background (non-blocking)
     // This will populate currentPosition but won't block tracking startup
-    getCurrentPosition(
-      timeLimit: const Duration(seconds: 10),
-      retryCount: 1,
-    ).then((position) {
-      if (position != null) {
-        debugPrint('✅ [LocationTracking] Initial position acquired in background');
-      }
-    }).catchError((error) {
-      debugPrint('⚠️ [LocationTracking] Background initial position failed: $error');
-      // Not critical - position stream will eventually provide position
-    });
+    getCurrentPosition(timeLimit: const Duration(seconds: 10), retryCount: 1)
+        .then((position) {
+          if (position != null) {
+            debugPrint(
+              '✅ [LocationTracking] Initial position acquired in background',
+            );
+          }
+        })
+        .catchError((error) {
+          debugPrint(
+            '⚠️ [LocationTracking] Background initial position failed: $error',
+          );
+          // Not critical - position stream will eventually provide position
+        });
 
     // Start position stream immediately (don't wait for initial position)
     try {
@@ -296,6 +332,7 @@ class LocationTrackingService {
 
       isTracking = true;
       onTrackingStateChanged?.call(true);
+      _refreshFastLocationTimer();
 
       debugPrint(
         '✅ [LocationTracking] Tracking started with ${threshold}m threshold',
@@ -318,6 +355,7 @@ class LocationTrackingService {
 
     isTracking = false;
     onTrackingStateChanged?.call(false);
+    _refreshFastLocationTimer();
 
     // Reset first position flag so next connection starts fresh
     _firstPositionSet = false;
@@ -361,6 +399,8 @@ class LocationTrackingService {
     // Notify listeners
     onPositionUpdate?.call(position);
 
+    _evaluateFastLocationMovement(position);
+
     // SPECIAL CASE: First stable position after connection
     // Set lat/lon on device WITHOUT broadcasting to mesh network
     if (!_firstPositionSet) {
@@ -378,12 +418,16 @@ class LocationTrackingService {
   /// Updates the device's advertised lat/lon but does NOT send an advertisement.
   void _setInitialPosition(Position position) async {
     if (_bleService == null || !_bleService!.isConnected) {
-      debugPrint('⚠️ [LocationTracking] Cannot set initial position: BLE not connected');
+      debugPrint(
+        '⚠️ [LocationTracking] Cannot set initial position: BLE not connected',
+      );
       return;
     }
 
     try {
-      debugPrint('📍 [LocationTracking] Setting initial position (no broadcast)');
+      debugPrint(
+        '📍 [LocationTracking] Setting initial position (no broadcast)',
+      );
 
       // Update device's advertised location WITHOUT sending advertisement
       await _bleService!.setAdvertLatLon(
@@ -414,7 +458,94 @@ class LocationTrackingService {
   void _checkAndBroadcast(Position position) {
     // Automatic broadcasting disabled
     // Use the manual advert button instead
-    debugPrint('   ⏸️ [LocationTracking] Automatic broadcasting disabled (use advert button)');
+    debugPrint(
+      '   ⏸️ [LocationTracking] Automatic broadcasting disabled (use advert button)',
+    );
+  }
+
+  void setFastLocationActiveUse(bool isActive) {
+    if (_isFastLocationActiveUse == isActive) return;
+    _isFastLocationActiveUse = isActive;
+    _refreshFastLocationTimer();
+  }
+
+  Future<void> setFastLocationUpdatesEnabled(bool enabled) async {
+    fastLocationUpdatesEnabled = enabled;
+    await saveSettings();
+    _refreshFastLocationTimer();
+  }
+
+  Future<void> updateFastLocationMovementThreshold(double meters) async {
+    fastLocationMovementThresholdMeters = meters.clamp(1.0, 1000.0);
+    await saveSettings();
+  }
+
+  Future<void> updateFastLocationActiveCadenceSeconds(int seconds) async {
+    fastLocationActiveCadenceSeconds = seconds.clamp(5, 60);
+    await saveSettings();
+    _refreshFastLocationTimer();
+  }
+
+  void _evaluateFastLocationMovement(Position position) {
+    if (!fastLocationUpdatesEnabled) return;
+    final previous = _lastFastLocationSentPosition;
+    if (previous == null) {
+      _emitFastLocationUpdate(position, reason: 'initial');
+      return;
+    }
+
+    final distance = Geolocator.distanceBetween(
+      previous.latitude,
+      previous.longitude,
+      position.latitude,
+      position.longitude,
+    );
+    if (distance >= fastLocationMovementThresholdMeters) {
+      _emitFastLocationUpdate(position, reason: 'movement');
+    }
+  }
+
+  void _refreshFastLocationTimer() {
+    _fastLocationTimer?.cancel();
+    _fastLocationTimer = null;
+    if (!isTracking ||
+        !fastLocationUpdatesEnabled ||
+        !_isFastLocationActiveUse) {
+      return;
+    }
+
+    _fastLocationTimer = Timer.periodic(
+      Duration(seconds: fastLocationActiveCadenceSeconds),
+      (_) {
+        final position = currentPosition;
+        if (position == null) return;
+        _emitFastLocationUpdate(position, reason: 'active_use');
+      },
+    );
+  }
+
+  void _emitFastLocationUpdate(Position position, {required String reason}) {
+    if (!fastLocationUpdatesEnabled) return;
+
+    final now = DateTime.now();
+    final previous = _lastFastLocationSentPosition;
+    final previousTime = _lastFastLocationSentAt;
+    if (previous != null && previousTime != null) {
+      final distance = Geolocator.distanceBetween(
+        previous.latitude,
+        previous.longitude,
+        position.latitude,
+        position.longitude,
+      );
+      final elapsedMs = now.difference(previousTime).inMilliseconds;
+      if (distance < 1.0 && elapsedMs < 3000) {
+        return;
+      }
+    }
+
+    _lastFastLocationSentPosition = position;
+    _lastFastLocationSentAt = now;
+    onFastLocationUpdate?.call(position, reason);
   }
 
   // ============================================================================
@@ -457,7 +588,9 @@ class LocationTrackingService {
       await _bleService!.sendSelfAdvert(floodMode: true);
 
       debugPrint('✅ [LocationTracking] Manual broadcast successful');
-      debugPrint('   Automatic broadcasts will resume after ${minTimeIntervalSeconds}s');
+      debugPrint(
+        '   Automatic broadcasts will resume after ${minTimeIntervalSeconds}s',
+      );
       onBroadcastSent?.call(position);
 
       return true;
@@ -480,12 +613,24 @@ class LocationTrackingService {
     maxDistanceMeters = prefs.getDouble(_prefKeyMaxDistance) ?? 100.0;
     minTimeIntervalSeconds = prefs.getInt(_prefKeyMinTimeInterval) ?? 30;
     gpsUpdateDistance = prefs.getDouble(_prefKeyGpsUpdateDistance) ?? 10.0;
+    fastLocationUpdatesEnabled =
+        prefs.getBool(_prefKeyFastLocationEnabled) ?? false;
+    fastLocationMovementThresholdMeters =
+        (prefs.getDouble(_prefKeyFastMovementThreshold) ?? gpsUpdateDistance)
+            .clamp(1.0, 1000.0);
+    fastLocationActiveCadenceSeconds =
+        (prefs.getInt(_prefKeyFastActiveCadence) ?? 10).clamp(5, 60);
 
     debugPrint('✅ [LocationTracking] Settings loaded');
     debugPrint('    Min distance: ${minDistanceMeters}m');
     debugPrint('    Max distance: ${maxDistanceMeters}m');
     debugPrint('    Min time interval: ${minTimeIntervalSeconds}s');
     debugPrint('    GPS update distance: ${gpsUpdateDistance}m');
+    debugPrint('    Fast updates enabled: $fastLocationUpdatesEnabled');
+    debugPrint(
+      '    Fast movement threshold: ${fastLocationMovementThresholdMeters}m',
+    );
+    debugPrint('    Fast active cadence: ${fastLocationActiveCadenceSeconds}s');
   }
 
   /// Save settings to SharedPreferences
@@ -497,6 +642,18 @@ class LocationTrackingService {
     await prefs.setInt(_prefKeyMinTimeInterval, minTimeIntervalSeconds);
     await prefs.setDouble(_prefKeyGpsUpdateDistance, gpsUpdateDistance);
     await prefs.setBool(_prefKeyEnabled, isTracking);
+    await prefs.setBool(
+      _prefKeyFastLocationEnabled,
+      fastLocationUpdatesEnabled,
+    );
+    await prefs.setDouble(
+      _prefKeyFastMovementThreshold,
+      fastLocationMovementThresholdMeters,
+    );
+    await prefs.setInt(
+      _prefKeyFastActiveCadence,
+      fastLocationActiveCadenceSeconds,
+    );
 
     debugPrint('✅ [LocationTracking] Settings saved');
   }
@@ -509,6 +666,7 @@ class LocationTrackingService {
   void dispose() {
     debugPrint('🗑️ [LocationTracking] Disposing service');
     _positionSubscription?.cancel();
+    _fastLocationTimer?.cancel();
     _positionSubscription = null;
     _bleService = null;
     _isInitialized = false;

lib/services/mbtiles_service.dart

@@ -1,273 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:path_provider/path_provider.dart';
-import 'package:mbtiles/mbtiles.dart';
-
-/// Metadata information extracted from an MBTiles file
-class MbtilesMetadata {
-  final String name;
-  final String? description;
-  final String? version;
-  final String? attribution;
-  final String? bounds; // "minLon,minLat,maxLon,maxLat"
-  final String? center; // "lon,lat,zoom"
-  final int? minZoom;
-  final int? maxZoom;
-  final String? format; // "pbf", "png", "jpg", etc.
-  final String? type; // "overlay", "baselayer"
-  final String? json; // Additional metadata JSON
-  final File file;
-  final int fileSize;
-
-  const MbtilesMetadata({
-    required this.name,
-    this.description,
-    this.version,
-    this.attribution,
-    this.bounds,
-    this.center,
-    this.minZoom,
-    this.maxZoom,
-    this.format,
-    this.type,
-    this.json,
-    required this.file,
-    required this.fileSize,
-  });
-
-  /// Check if this is a vector tile MBTiles file
-  bool get isVector => format == 'pbf' || format == 'mvt';
-
-  /// Parse bounds string into [minLon, minLat, maxLon, maxLat]
-  List<double>? get boundsCoordinates {
-    if (bounds == null) return null;
-    try {
-      final parts = bounds!.split(',');
-      if (parts.length != 4) return null;
-      return parts.map((s) => double.parse(s.trim())).toList();
-    } catch (e) {
-      debugPrint('Error parsing bounds: $e');
-      return null;
-    }
-  }
-
-  /// Parse center string into [lon, lat, zoom]
-  List<double>? get centerCoordinates {
-    if (center == null) return null;
-    try {
-      final parts = center!.split(',');
-      if (parts.length < 2) return null;
-      return parts.map((s) => double.parse(s.trim())).toList();
-    } catch (e) {
-      debugPrint('Error parsing center: $e');
-      return null;
-    }
-  }
-
-  /// Get file size in human-readable format
-  String get fileSizeFormatted {
-    if (fileSize < 1024) {
-      return '$fileSize B';
-    } else if (fileSize < 1024 * 1024) {
-      return '${(fileSize / 1024).toStringAsFixed(1)} KB';
-    } else if (fileSize < 1024 * 1024 * 1024) {
-      return '${(fileSize / (1024 * 1024)).toStringAsFixed(1)} MB';
-    } else {
-      return '${(fileSize / (1024 * 1024 * 1024)).toStringAsFixed(2)} GB';
-    }
-  }
-}
-
-/// Service for managing MBTiles files for offline vector maps
-class MbtilesService {
-  static const String _mbtilesDirectory = 'offline_maps';
-
-  /// Get the directory where MBTiles files are stored
-  Future<Directory> getMbtilesDirectory() async {
-    final appDocDir = await getApplicationDocumentsDirectory();
-    final mbtilesDir = Directory('${appDocDir.path}/$_mbtilesDirectory');
-
-    // Create directory if it doesn't exist
-    if (!await mbtilesDir.exists()) {
-      await mbtilesDir.create(recursive: true);
-    }
-
-    return mbtilesDir;
-  }
-
-  /// List all MBTiles files in the offline maps directory
-  Future<List<File>> listMbtilesFiles() async {
-    final dir = await getMbtilesDirectory();
-
-    try {
-      final files = await dir
-          .list()
-          .where((entity) => entity is File && entity.path.endsWith('.mbtiles'))
-          .map((entity) => entity as File)
-          .toList();
-
-      return files;
-    } catch (e) {
-      debugPrint('Error listing MBTiles files: $e');
-      return [];
-    }
-  }
-
-  /// Get metadata from an MBTiles file
-  Future<MbtilesMetadata?> getMetadata(File file) async {
-    try {
-      // Check if file exists
-      if (!await file.exists()) {
-        debugPrint('MBTiles file does not exist: ${file.path}');
-        return null;
-      }
-
-      // Get file size
-      final fileSize = await file.length();
-
-      // Open MBTiles file
-      final mbtiles = MbTiles(mbtilesPath: file.path);
-
-      // Get metadata from MBTiles
-      final metadata = mbtiles.getMetadata();
-
-      // Convert bounds object to string if available
-      String? boundsStr;
-      if (metadata.bounds != null) {
-        boundsStr = metadata.bounds.toString();
-      }
-
-      return MbtilesMetadata(
-        name: metadata.name,
-        description: metadata.description,
-        version: metadata.version?.toString(),
-        attribution: null, // Not available in new API
-        bounds: boundsStr,
-        center: null, // Not available in new API
-        minZoom: metadata.minZoom?.toInt(),
-        maxZoom: metadata.maxZoom?.toInt(),
-        format: metadata.format,
-        type: metadata.type?.name,
-        json: null, // Not available in new API
-        file: file,
-        fileSize: fileSize,
-      );
-    } catch (e) {
-      debugPrint('Error reading MBTiles metadata from ${file.path}: $e');
-      return null;
-    }
-  }
-
-  /// Get metadata for all MBTiles files
-  Future<List<MbtilesMetadata>> getAllMetadata() async {
-    final files = await listMbtilesFiles();
-    final metadataList = <MbtilesMetadata>[];
-
-    for (final file in files) {
-      final metadata = await getMetadata(file);
-      if (metadata != null) {
-        metadataList.add(metadata);
-      }
-    }
-
-    return metadataList;
-  }
-
-  /// Import an MBTiles file from an external location
-  Future<File?> importMbtilesFile(String sourcePath) async {
-    try {
-      final sourceFile = File(sourcePath);
-
-      // Verify source file exists
-      if (!await sourceFile.exists()) {
-        debugPrint('Source file does not exist: $sourcePath');
-        return null;
-      }
-
-      // Get destination directory
-      final destDir = await getMbtilesDirectory();
-      final fileName = _getFileName(sourceFile);
-      final destPath = '${destDir.path}/$fileName';
-
-      // Copy file to destination
-      final destFile = await sourceFile.copy(destPath);
-      debugPrint('Imported MBTiles file to: $destPath');
-
-      return destFile;
-    } catch (e) {
-      debugPrint('Error importing MBTiles file: $e');
-      return null;
-    }
-  }
-
-  /// Delete an MBTiles file
-  Future<bool> deleteMbtilesFile(File file) async {
-    try {
-      if (await file.exists()) {
-        await file.delete();
-        debugPrint('Deleted MBTiles file: ${file.path}');
-        return true;
-      }
-      return false;
-    } catch (e) {
-      debugPrint('Error deleting MBTiles file: $e');
-      return false;
-    }
-  }
-
-  /// Check if data in MBTiles is gzip compressed
-  Future<bool> isGzipCompressed(File file) async {
-    try {
-      // Open MBTiles and check a sample tile
-      final mbtiles = MbTiles(mbtilesPath: file.path);
-
-      // Try to get metadata to check for compression hints
-      final metadata = mbtiles.getMetadata();
-      final format = metadata.format;
-
-      // For Geofabrik files, format is 'pbf' and data is gzipped
-      // We can infer this from common patterns, but ideally we'd check actual tile data
-      if (format == 'pbf') {
-        // Geofabrik MBTiles are typically gzipped
-        // Could also check tile data headers, but this is a reasonable heuristic
-        return true;
-      }
-
-      return false;
-    } catch (e) {
-      debugPrint('Error checking gzip compression: $e');
-      return false;
-    }
-  }
-
-  /// Determine the vector tile schema from metadata
-  String? getVectorSchema(MbtilesMetadata metadata) {
-    // Try to infer schema from metadata
-    final json = metadata.json;
-    if (json != null) {
-      if (json.contains('shortbread')) {
-        return 'shortbread';
-      } else if (json.contains('openmaptiles')) {
-        return 'openmaptiles';
-      }
-    }
-
-    // Check description
-    final description = metadata.description?.toLowerCase();
-    if (description != null) {
-      if (description.contains('shortbread')) {
-        return 'shortbread';
-      } else if (description.contains('openmaptiles')) {
-        return 'openmaptiles';
-      }
-    }
-
-    // Default to unknown
-    return null;
-  }
-
-  /// Helper: Get file name from path
-  String _getFileName(File file) {
-    return file.path.split(Platform.pathSeparator).last;
-  }
-}

lib/services/tile_cache_service.dart

@@ -1,302 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:flutter_map/flutter_map.dart';
-import 'package:flutter_map_tile_caching/flutter_map_tile_caching.dart';
-import 'package:vector_map_tiles_mbtiles/vector_map_tiles_mbtiles.dart';
-import 'package:mbtiles/mbtiles.dart';
-import '../models/map_layer.dart';
-
-class TileCacheService {
-  static const String _storeName = 'meshcore_sar_tiles';
-
-  // Global flag to ensure ObjectBox is only initialized once
-  static bool _objectBoxInitialized = false;
-  static Future<void>? _objectBoxInitialization;
-
-  Future<void>? _initializeFuture;
-  FMTCStore? _store;
-  bool _isInitialized = false;
-  bool _isDownloading = false;
-
-  Future<void> initialize() async {
-    if (_isInitialized) return;
-    _initializeFuture ??= _initializeInternal();
-    await _initializeFuture;
-  }
-
-  Future<void> _initializeInternal() async {
-    try {
-      await _ensureObjectBoxInitialized();
-
-      final store = FMTCStore(_storeName);
-      try {
-        await store.manage.create();
-      } catch (_) {
-        // The store may already exist from a prior initialization.
-      }
-
-      _store = store;
-      _isInitialized = true;
-    } catch (_) {
-      _initializeFuture = null;
-      rethrow;
-    }
-  }
-
-  Future<void> _ensureObjectBoxInitialized() async {
-    if (_objectBoxInitialized) return;
-
-    _objectBoxInitialization ??= () async {
-      try {
-        await FMTCObjectBoxBackend().initialise();
-      } catch (_) {
-        // Treat repeated backend initialization as a no-op.
-      } finally {
-        _objectBoxInitialized = true;
-      }
-    }();
-
-    await _objectBoxInitialization;
-  }
-
-  FMTCStore _requireStore() {
-    final store = _store;
-    if (!_isInitialized || store == null) {
-      throw StateError(
-        'TileCacheService not initialized. Call initialize() first.',
-      );
-    }
-    return store;
-  }
-
-  TileProvider getTileProvider(MapLayer layer) {
-    _requireStore();
-    return FMTCTileProvider(
-      stores: {_storeName: BrowseStoreStrategy.readUpdateCreate},
-      loadingStrategy: BrowseLoadingStrategy.cacheFirst,
-      cachedValidDuration: const Duration(days: 30),
-    );
-  }
-
-  /// Get tile provider for WMS layers with caching support
-  /// WMS layers require special handling because they use WMSTileLayerOptions
-  TileProvider getTileProviderForWms(MapLayer layer) {
-    _requireStore();
-    if (!layer.isWms) {
-      throw ArgumentError('Layer must be a WMS layer');
-    }
-
-    // Return the same cached tile provider
-    // The WMS URL construction is handled by flutter_map's WMSTileLayerOptions
-    return FMTCTileProvider(
-      stores: {_storeName: BrowseStoreStrategy.readUpdateCreate},
-      loadingStrategy: BrowseLoadingStrategy.cacheFirst,
-      cachedValidDuration: const Duration(days: 30),
-    );
-  }
-
-  Future<void> downloadRegion({
-    required MapLayer layer,
-    required LatLngBounds bounds,
-    required int minZoom,
-    required int maxZoom,
-    Function(double progress)? onProgress,
-  }) async {
-    if (!_isInitialized) {
-      throw StateError(
-        'TileCacheService not initialized. Call initialize() first.',
-      );
-    }
-
-    if (_isDownloading) {
-      throw StateError('A download is already in progress. Cancel it first.');
-    }
-
-    _isDownloading = true;
-    final store = _requireStore();
-
-    try {
-      final region = RectangleRegion(bounds);
-
-      final downloadable = region.toDownloadable(
-        minZoom: minZoom,
-        maxZoom: maxZoom,
-        options: TileLayer(urlTemplate: layer.urlTemplate),
-      );
-
-      final download = store.download.startForeground(region: downloadable);
-
-      await for (final progress in download.downloadProgress) {
-        if (onProgress != null && progress.maxTilesCount > 0) {
-          // Use attemptedTilesCount instead of successfulTilesCount
-          // attemptedTilesCount includes successful + buffered + skipped tiles
-          final percentage = progress.percentageProgress;
-          debugPrint(
-            'Download progress: ${progress.attemptedTilesCount}/${progress.maxTilesCount} = ${percentage.toStringAsFixed(1)}% (successful: ${progress.successfulTilesCount}, buffered: ${progress.bufferedTilesCount}, skipped: ${progress.skippedTilesCount})',
-          );
-          onProgress(percentage);
-        }
-      }
-    } finally {
-      _isDownloading = false;
-    }
-  }
-
-  Future<void> cancelDownload() async {
-    if (!_isInitialized) return;
-    await _requireStore().download.cancel();
-  }
-
-  Future<void> clearCache() async {
-    if (!_isInitialized) return;
-    final store = _requireStore();
-    await store.manage.delete();
-    await store.manage.create();
-  }
-
-  Future<int> getCachedTileCount() async {
-    if (!_isInitialized) return 0;
-    final stats = await _requireStore().stats.length;
-    return stats;
-  }
-
-  Future<double> getCacheSizeMB() async {
-    if (!_isInitialized) return 0.0;
-    final stats = await _requireStore().stats.size;
-    return stats / (1024 * 1024);
-  }
-
-  Future<List<String>> getAvailableStores() async {
-    if (!_isInitialized) {
-      throw StateError(
-        'TileCacheService not initialized. Call initialize() first.',
-      );
-    }
-
-    final stores = await FMTCRoot.stats.storesAvailable;
-    return stores.map((store) => store.storeName).toList();
-  }
-
-  Future<Map<String, dynamic>> getStoreStats() async {
-    if (!_isInitialized) return {};
-
-    final store = _requireStore();
-    final length = await store.stats.length;
-    final size = await store.stats.all.then((a) => a.size);
-
-    return {
-      'tileCount': length,
-      'sizeMB': size / 1024,
-      'storeName': _storeName,
-    };
-  }
-
-  /// Get vector tile provider for MBTiles layers
-  MbTilesVectorTileProvider? getVectorTileProvider(MapLayer layer) {
-    if (!layer.isVector || layer.mbtilesFile == null) {
-      return null;
-    }
-
-    try {
-      final mbtiles = MbTiles(
-        mbtilesPath: layer.mbtilesFile!.path,
-        gzip: layer.isGzipped ?? false,
-      );
-
-      return MbTilesVectorTileProvider(
-        mbtiles: mbtiles,
-      );
-    } catch (e) {
-      debugPrint('Error creating vector tile provider: $e');
-      return null;
-    }
-  }
-
-  /// Export the current tile cache store to an archive file
-  ///
-  /// [outputPath] - Full path where the archive should be saved (e.g., '/path/to/export.fmtc')
-  ///
-  /// Returns the number of tiles exported
-  Future<int> exportStore(String outputPath) async {
-    if (!_isInitialized) {
-      throw StateError(
-        'TileCacheService not initialized. Call initialize() first.',
-      );
-    }
-
-    try {
-      final external = FMTCRoot.external(pathToArchive: outputPath);
-      final result = await external.export(storeNames: [_storeName]);
-
-      debugPrint('Export completed: $result tiles exported to $outputPath');
-      return result;
-    } catch (e) {
-      debugPrint('Error exporting store: $e');
-      rethrow;
-    }
-  }
-
-  /// Import a tile cache store from an archive file
-  ///
-  /// [filePath] - Path to the .fmtc archive file to import
-  /// [storeNames] - Optional list of store names to import (null = import all)
-  /// [strategy] - Conflict resolution strategy (default: merge)
-  ///
-  /// Returns a map with import statistics (e.g., tile count, stores imported)
-  Future<Map<String, dynamic>> importStore(
-    String filePath, {
-    List<String>? storeNames,
-    ImportConflictStrategy strategy = ImportConflictStrategy.merge,
-  }) async {
-    if (!_isInitialized) {
-      throw StateError(
-        'TileCacheService not initialized. Call initialize() first.',
-      );
-    }
-
-    try {
-      final external = FMTCRoot.external(pathToArchive: filePath);
-      final result = external.import(storeNames: storeNames, strategy: strategy);
-
-      // Wait for the import to complete and get tile count
-      final tileCount = await result.complete;
-
-      // Wait for store states
-      final storesToStates = await result.storesToStates;
-
-      debugPrint('Import completed: $tileCount tiles imported, ${storesToStates.length} stores');
-
-      // Count successful stores (those that weren't skipped)
-      final successfulCount = storesToStates.values.where((state) => state.name != null).length;
-
-      return {
-        'successfulStores': successfulCount,
-        'tileCount': tileCount,
-        'storesToStates': storesToStates,
-      };
-    } catch (e) {
-      debugPrint('Error importing store: $e');
-      rethrow;
-    }
-  }
-
-  /// List all stores available in an archive file without importing
-  ///
-  /// [filePath] - Path to the .fmtc archive file to inspect
-  ///
-  /// Returns a list of store names contained in the archive
-  Future<List<String>> listArchiveStores(String filePath) async {
-    try {
-      final external = FMTCRoot.external(pathToArchive: filePath);
-      final stores = await external.listStores;
-      debugPrint('Archive contains ${stores.length} stores: $stores');
-      return stores;
-    } catch (e) {
-      debugPrint('Error listing archive stores: $e');
-      rethrow;
-    }
-  }
-
-  void dispose() {
-    _isInitialized = false;
-  }
-}

lib/utils/fast_gps_packet.dart

@@ -0,0 +1,69 @@
+import 'dart:typed_data';
+
+class FastGpsPacket {
+  static const int magic = 0x47; // 'G'
+  static const int _payloadLength = 19;
+  // Store coordinates in microdegrees. This preserves sub-meter precision,
+  // which comfortably satisfies the meter-accuracy requirement.
+  static const double coordinateScale = 1e6;
+
+  final String senderKey6;
+  final double latitude;
+  final double longitude;
+  final int timestampSeconds;
+
+  const FastGpsPacket({
+    required this.senderKey6,
+    required this.latitude,
+    required this.longitude,
+    required this.timestampSeconds,
+  });
+
+  static bool isFastGpsBinary(Uint8List payload) =>
+      payload.length == _payloadLength && payload[0] == magic;
+
+  static FastGpsPacket? tryParseBinary(Uint8List payload) {
+    if (!isFastGpsBinary(payload)) return null;
+
+    final key6 = payload
+        .sublist(1, 7)
+        .map((b) => b.toRadixString(16).padLeft(2, '0'))
+        .join();
+    final data = ByteData.sublistView(payload);
+    final latitude = data.getInt32(7, Endian.little) / coordinateScale;
+    final longitude = data.getInt32(11, Endian.little) / coordinateScale;
+    final timestampSeconds = data.getUint32(15, Endian.little);
+
+    if (!_isValidCoordinate(latitude, longitude)) {
+      return null;
+    }
+
+    return FastGpsPacket(
+      senderKey6: key6,
+      latitude: latitude,
+      longitude: longitude,
+      timestampSeconds: timestampSeconds,
+    );
+  }
+
+  Uint8List encodeBinary() {
+    final out = Uint8List(_payloadLength);
+    final data = ByteData.sublistView(out);
+    out[0] = magic;
+    for (var i = 0; i < 6; i++) {
+      out[1 + i] = int.parse(senderKey6.substring(i * 2, i * 2 + 2), radix: 16);
+    }
+    data.setInt32(7, (latitude * coordinateScale).round(), Endian.little);
+    data.setInt32(11, (longitude * coordinateScale).round(), Endian.little);
+    data.setUint32(15, timestampSeconds, Endian.little);
+    return out;
+  }
+
+  static bool _isValidCoordinate(double latitude, double longitude) {
+    if (!latitude.isFinite || !longitude.isFinite) return false;
+    return latitude >= -90.0 &&
+        latitude <= 90.0 &&
+        longitude >= -180.0 &&
+        longitude <= 180.0;
+  }
+}

lib/widgets/map/download_area_overlay.dart

@@ -1,108 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:flutter_map/flutter_map.dart';
-
-/// Overlay widget that displays controls for download area selection.
-/// The actual polygon should be rendered inside FlutterMap's children.
-class DownloadAreaOverlay extends StatelessWidget {
-  final LatLngBounds bounds;
-  final VoidCallback onConfirm;
-  final VoidCallback onCancel;
-
-  const DownloadAreaOverlay({
-    super.key,
-    required this.bounds,
-    required this.onConfirm,
-    required this.onCancel,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    return Stack(
-      children: [
-        // Control buttons at the top
-        Positioned(
-          top: 16,
-          left: 16,
-          right: 16,
-          child: Card(
-            child: Padding(
-              padding: const EdgeInsets.all(12.0),
-              child: Column(
-                mainAxisSize: MainAxisSize.min,
-                crossAxisAlignment: CrossAxisAlignment.stretch,
-                children: [
-                  Text(
-                    'Download Area Selection',
-                    style: Theme.of(context).textTheme.titleMedium,
-                    textAlign: TextAlign.center,
-                  ),
-                  const SizedBox(height: 8),
-                  Text(
-                    'The blue rectangle shows the area to be downloaded. '
-                    'To change the area, tap Cancel and select download again.',
-                    style: Theme.of(context).textTheme.bodySmall,
-                    textAlign: TextAlign.center,
-                  ),
-                  const SizedBox(height: 12),
-                  Row(
-                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                    children: [
-                      Expanded(
-                        child: OutlinedButton.icon(
-                          onPressed: onCancel,
-                          icon: const Icon(Icons.close),
-                          label: const Text('Cancel'),
-                        ),
-                      ),
-                      const SizedBox(width: 12),
-                      Expanded(
-                        child: FilledButton.icon(
-                          onPressed: onConfirm,
-                          icon: const Icon(Icons.check),
-                          label: const Text('Confirm'),
-                        ),
-                      ),
-                    ],
-                  ),
-                ],
-              ),
-            ),
-          ),
-        ),
-
-        // Area info at the bottom
-        Positioned(
-          bottom: 16,
-          left: 16,
-          right: 16,
-          child: Card(
-            child: Padding(
-              padding: const EdgeInsets.all(12.0),
-              child: Column(
-                mainAxisSize: MainAxisSize.min,
-                crossAxisAlignment: CrossAxisAlignment.start,
-                children: [
-                  Text(
-                    'Area Bounds',
-                    style: Theme.of(context).textTheme.titleSmall,
-                  ),
-                  const SizedBox(height: 4),
-                  Text(
-                    'N: ${bounds.north.toStringAsFixed(4)}° '
-                    'S: ${bounds.south.toStringAsFixed(4)}°',
-                    style: Theme.of(context).textTheme.bodySmall,
-                  ),
-                  Text(
-                    'E: ${bounds.east.toStringAsFixed(4)}° '
-                    'W: ${bounds.west.toStringAsFixed(4)}°',
-                    style: Theme.of(context).textTheme.bodySmall,
-                  ),
-                ],
-              ),
-            ),
-          ),
-        ),
-      ],
-    );
-  }
-}

linux/flutter/generated_plugin_registrant.cc

@@ -9,7 +9,6 @@
 #include <audioplayers_linux/audioplayers_linux_plugin.h>
 #include <file_selector_linux/file_selector_plugin.h>
 #include <flutter_avif_linux/flutter_avif_linux_plugin.h>
-#include <objectbox_flutter_libs/objectbox_flutter_libs_plugin.h>
 #include <record_linux/record_linux_plugin.h>
 #include <url_launcher_linux/url_launcher_plugin.h>
 
@@ -23,9 +22,6 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) flutter_avif_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterAvifLinuxPlugin");
   flutter_avif_linux_plugin_register_with_registrar(flutter_avif_linux_registrar);
-  g_autoptr(FlPluginRegistrar) objectbox_flutter_libs_registrar =
-      fl_plugin_registry_get_registrar_for_plugin(registry, "ObjectboxFlutterLibsPlugin");
-  objectbox_flutter_libs_plugin_register_with_registrar(objectbox_flutter_libs_registrar);
   g_autoptr(FlPluginRegistrar) record_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "RecordLinuxPlugin");
   record_linux_plugin_register_with_registrar(record_linux_registrar);

linux/flutter/generated_plugins.cmake

@@ -6,7 +6,6 @@ list(APPEND FLUTTER_PLUGIN_LIST
   audioplayers_linux
   file_selector_linux
   flutter_avif_linux
-  objectbox_flutter_libs
   record_linux
   url_launcher_linux
 )

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -14,7 +14,6 @@ import flutter_blue_plus_darwin
 import flutter_local_notifications
 import geolocator_apple
 import nsd_macos
-import objectbox_flutter_libs
 import package_info_plus
 import record_macos
 import share_plus
@@ -32,7 +31,6 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   GeolocatorPlugin.register(with: registry.registrar(forPlugin: "GeolocatorPlugin"))
   NsdMacosPlugin.register(with: registry.registrar(forPlugin: "NsdMacosPlugin"))
-  ObjectboxFlutterLibsPlugin.register(with: registry.registrar(forPlugin: "ObjectboxFlutterLibsPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
   RecordMacOsPlugin.register(with: registry.registrar(forPlugin: "RecordMacOsPlugin"))
   SharePlusMacosPlugin.register(with: registry.registrar(forPlugin: "SharePlusMacosPlugin"))

pubspec.lock

@@ -226,14 +226,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.3"
-  executor_lib:
-    dependency: transitive
-    description:
-      name: executor_lib
-      sha256: "95ddf2957d9942d9702855b38dd49677f0ee6a8b77d7b16c0e509c7669d17386"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.2"
   exif:
     dependency: transitive
     description:
@@ -314,14 +306,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.1"
-  flat_buffers:
-    dependency: transitive
-    description:
-      name: flat_buffers
-      sha256: "380bdcba5664a718bfd4ea20a45d39e13684f5318fcd8883066a55e21f37f4c3"
-      url: "https://pub.dev"
-    source: hosted
-    version: "23.5.26"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -551,19 +535,12 @@ packages:
   flutter_map:
     dependency: "direct main"
     description:
-      name: flutter_map
-      sha256: "391e7dc95cc3f5190748210a69d4cfeb5d8f84dcdfa9c3235d0a9d7742ccb3f8"
-      url: "https://pub.dev"
-    source: hosted
+      path: "."
+      ref: master
+      resolved-ref: fdc089aeb4fad05a4f2314f75bbd66c9b7a70668
+      url: "https://github.com/fleaflet/flutter_map.git"
+    source: git
     version: "8.2.2"
-  flutter_map_tile_caching:
-    dependency: "direct main"
-    description:
-      name: flutter_map_tile_caching
-      sha256: "90e097223d8ab74425cf15b449a03adfa4d4c28406dc757e1c396aff0f9beba7"
-      url: "https://pub.dev"
-    source: hosted
-    version: "10.1.1"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -694,14 +671,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
-  idb_shim:
-    dependency: transitive
-    description:
-      name: idb_shim
-      sha256: "921301da0a735f336a28fc35c3abdbd4498895cc205fa1ea9f7e785e7d854ceb"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.8.2+4"
   image:
     dependency: transitive
     description:
@@ -830,22 +799,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.1.0"
-  lists:
-    dependency: transitive
-    description:
-      name: lists
-      sha256: "4ca5c19ae4350de036a7e996cdd1ee39c93ac0a2b840f4915459b7d0a7d4ab27"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.1"
-  logger:
-    dependency: transitive
-    description:
-      name: logger
-      sha256: a7967e31b703831a893bbc3c3dd11db08126fe5f369b5c648a36f821979f5be3
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.6.2"
   logging:
     dependency: transitive
     description:
@@ -870,14 +823,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.13.0"
-  mbtiles:
-    dependency: "direct main"
-    description:
-      name: mbtiles
-      sha256: "316af1f8db8ce95888ca70f5dd3f6914906b4e17ceeca8501206d28e78612af8"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.4.2"
   meshcore_client:
     dependency: "direct main"
     description:
@@ -899,10 +844,10 @@ packages:
     dependency: transitive
     description:
       name: mgrs_dart
-      sha256: fb89ae62f05fa0bb90f70c31fc870bcbcfd516c843fb554452ab3396f78586f7
+      sha256: "385e7168ecc77eb545220223c49eef8ab249da7bf57f22781c40a04d23fb196f"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.0"
+    version: "3.0.0"
   mime:
     dependency: transitive
     description:
@@ -975,22 +920,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.1"
-  objectbox:
-    dependency: transitive
-    description:
-      name: objectbox
-      sha256: "3cc186749178a3556e1020c9082d0897d0f9ecbdefcc27320e65c5bc650f0e57"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.3.1"
-  objectbox_flutter_libs:
-    dependency: transitive
-    description:
-      name: objectbox_flutter_libs
-      sha256: cd754766e04229a4f51250f121813d9a3c1a74fc21cd68e48b3c6085cbcd6c85
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.3.1"
   objective_c:
     dependency: transitive
     description:
@@ -1163,10 +1092,10 @@ packages:
     dependency: "direct main"
     description:
       name: proj4dart
-      sha256: c8a659ac9b6864aa47c171e78d41bbe6f5e1d7bd790a5814249e6b68bc44324e
+      sha256: ddcedc1f7876e62717de43ab3491e2829bdad0b028261805f94aa080967e5859
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "3.0.0"
   protobuf:
     dependency: transitive
     description:
@@ -1263,14 +1192,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.28.0"
-  sembast:
-    dependency: transitive
-    description:
-      name: sembast
-      sha256: "139cf71496105de32e7a08a4e3a1ead0f81c4a616ec9703ed07e8f0d10cdd505"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.8.6"
   share_plus:
     dependency: "direct main"
     description:
@@ -1359,6 +1280,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.4"
+  simple_sparse_list:
+    dependency: transitive
+    description:
+      name: simple_sparse_list
+      sha256: aa648fd240fa39b49dcd11c19c266990006006de6699a412de485695910fbc1f
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.4"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -1420,14 +1349,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.4.0"
-  sqlite3:
-    dependency: transitive
-    description:
-      name: sqlite3
-      sha256: "3145bd74dcdb4fd6f5c6dda4d4e4490a8087d7f286a14dee5d37087290f0f8a2"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.9.4"
   stack_trace:
     dependency: transitive
     description:
@@ -1496,10 +1417,10 @@ packages:
     dependency: transitive
     description:
       name: unicode
-      sha256: "0f69e46593d65245774d4f17125c6084d2c20b4e473a983f6e21b7d7762218f1"
+      sha256: a6f7bcfc8ea1d5ce1f6c0b1c39117a9919f4953edd9fd7a64090a9796c499b57
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.1"
+    version: "1.1.9"
   url_launcher:
     dependency: "direct main"
     description:
@@ -1572,23 +1493,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.5.3"
-  vector_map_tiles:
-    dependency: "direct main"
-    description:
-      name: vector_map_tiles
-      sha256: e35f090c428f05e44dd525fa4fedaafd1dbcd28b656cb0ea908528c6ce84a87d
-      url: "https://pub.dev"
-    source: hosted
-    version: "9.0.0-beta.8"
-  vector_map_tiles_mbtiles:
-    dependency: "direct main"
-    description:
-      path: vector_map_tiles_mbtiles
-      ref: HEAD
-      resolved-ref: a09543b7590b373f3ac53f4776e343fee41c7dc6
-      url: "https://github.com/josxha/flutter_map_plugins.git"
-    source: git
-    version: "1.2.1"
   vector_math:
     dependency: transitive
     description:
@@ -1597,30 +1501,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
-  vector_tile:
-    dependency: transitive
-    description:
-      name: vector_tile
-      sha256: "7ae290246e3a8734422672dbe791d3f7b8ab631734489fc6d405f1cc2080e38c"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.1"
-  vector_tile_dem:
-    dependency: transitive
-    description:
-      name: vector_tile_dem
-      sha256: "81a3568d2213817bd2698f919357e5107c0261491ae1014e821ed4fc3c2bf740"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.0.2"
-  vector_tile_renderer:
-    dependency: "direct main"
-    description:
-      name: vector_tile_renderer
-      sha256: "99530edb073c1cea3c6a4bdb5ca9a5c6779c25ddf1a645678458504708dc221c"
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.0.0"
   vibration:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -66,24 +66,16 @@ dependencies:
   provider: ^6.1.0
 
   # Map display
-  flutter_map: ^8.2.2
+  flutter_map:
+    git:
+      url: https://github.com/fleaflet/flutter_map.git
+      ref: master
   latlong2: ^0.9.0
 
-  # Offline tile caching
-  flutter_map_tile_caching: ^10.1.1
-
-  # Vector map tiles
-  vector_map_tiles: ^9.0.0-beta.8
-  vector_map_tiles_mbtiles:
-    git:
-      url: https://github.com/josxha/flutter_map_plugins.git
-      path: vector_map_tiles_mbtiles
-  vector_tile_renderer: ^6.0.0
-  mbtiles: ^0.4.0
   http: ^1.2.0
 
   # Coordinate system projections for WMS (EPSG:3794)
-  proj4dart: ^2.1.0
+  proj4dart: ^3.0.0
 
   # Permissions
   permission_handler: ^12.0.1

test/providers/contacts_provider_test.dart

@@ -4,6 +4,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:meshcore_sar_app/models/contact.dart';
 import 'package:meshcore_sar_app/providers/contacts_provider.dart';
 import 'package:meshcore_sar_app/services/cayenne_lpp_parser.dart';
+import 'package:meshcore_sar_app/utils/fast_gps_packet.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 void main() {
@@ -347,4 +348,65 @@ void main() {
       expect(updated.routeSummary, 'Flood/Unknown');
     });
   });
+
+  group('ContactsProvider.updateFastGps', () {
+    late ContactsProvider provider;
+    late Uint8List publicKey;
+
+    setUp(() {
+      SharedPreferences.setMockInitialValues({});
+      provider = ContactsProvider();
+      publicKey = createPublicKey(50);
+      provider.addOrUpdateContact(
+        createContact(key: publicKey, type: ContactType.chat, name: 'Fast GPS'),
+      );
+    });
+
+    test('updates gps while preserving other telemetry fields', () {
+      final batteryOnly = CayenneLppParser.createBatteryData(3.9);
+      provider.updateTelemetry(publicKey.sublist(0, 6), batteryOnly);
+
+      provider.updateFastGps(
+        publicKey.sublist(0, 6),
+        const FastGpsPacket(
+          senderKey6: '323334353637',
+          latitude: 44.123456,
+          longitude: 13.654321,
+          timestampSeconds: 1700001234,
+        ),
+      );
+
+      final updated = provider.findContactByKey(publicKey)!;
+      expect(updated.telemetry, isNotNull);
+      expect(updated.telemetry!.gpsLocation, isNotNull);
+      expect(
+        updated.telemetry!.gpsLocation!.latitude,
+        closeTo(44.123456, 0.000001),
+      );
+      expect(
+        updated.telemetry!.gpsLocation!.longitude,
+        closeTo(13.654321, 0.000001),
+      );
+      expect(updated.telemetry!.batteryMilliVolts, isNotNull);
+      expect(updated.advLat, equals((44.123456 * 1e6).round()));
+      expect(updated.advLon, equals((13.654321 * 1e6).round()));
+      expect(updated.lastAdvert, equals(1700001234));
+    });
+
+    test('ignores unknown sender prefix safely', () {
+      final before = provider.findContactByKey(publicKey)!;
+      provider.updateFastGps(
+        Uint8List.fromList([1, 2, 3, 4, 5, 6]),
+        const FastGpsPacket(
+          senderKey6: '010203040506',
+          latitude: 10,
+          longitude: 20,
+          timestampSeconds: 99,
+        ),
+      );
+      final after = provider.findContactByKey(publicKey)!;
+      expect(after.advLat, equals(before.advLat));
+      expect(after.advLon, equals(before.advLon));
+    });
+  });
 }

test/utils/fast_gps_packet_test.dart

@@ -0,0 +1,97 @@
+import 'dart:typed_data';
+import 'dart:math' as math;
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:meshcore_sar_app/utils/fast_gps_packet.dart';
+
+void main() {
+  group('FastGpsPacket', () {
+    test('encodes and parses a valid packet', () {
+      final packet = FastGpsPacket(
+        senderKey6: 'aabbccddeeff',
+        latitude: 46.0569,
+        longitude: 14.5058,
+        timestampSeconds: 1700000000,
+      );
+
+      final encoded = packet.encodeBinary();
+      final parsed = FastGpsPacket.tryParseBinary(encoded);
+
+      expect(parsed, isNotNull);
+      expect(parsed!.senderKey6, equals('aabbccddeeff'));
+      expect(parsed.latitude, closeTo(46.0569, 0.000001));
+      expect(parsed.longitude, closeTo(14.5058, 0.000001));
+      expect(parsed.timestampSeconds, equals(1700000000));
+    });
+
+    test('supports negative coordinates', () {
+      final packet = FastGpsPacket(
+        senderKey6: '001122334455',
+        latitude: -33.8688,
+        longitude: -151.2093,
+        timestampSeconds: 42,
+      );
+
+      final parsed = FastGpsPacket.tryParseBinary(packet.encodeBinary());
+      expect(parsed, isNotNull);
+      expect(parsed!.latitude, closeTo(-33.8688, 0.000001));
+      expect(parsed.longitude, closeTo(-151.2093, 0.000001));
+    });
+
+    test('rejects malformed payloads', () {
+      expect(
+        FastGpsPacket.tryParseBinary(Uint8List.fromList([0x47, 0x01])),
+        isNull,
+      );
+      expect(
+        FastGpsPacket.tryParseBinary(
+          Uint8List.fromList(List<int>.filled(19, 0)..[0] = 0x48),
+        ),
+        isNull,
+      );
+    });
+
+    test('rejects invalid coordinate ranges', () {
+      final payload = Uint8List(19);
+      payload[0] = FastGpsPacket.magic;
+      payload.setRange(1, 7, [0, 1, 2, 3, 4, 5]);
+      final data = ByteData.sublistView(payload);
+      data.setInt32(
+        7,
+        (91.0 * FastGpsPacket.coordinateScale).round(),
+        Endian.little,
+      );
+      data.setInt32(
+        11,
+        (14.5 * FastGpsPacket.coordinateScale).round(),
+        Endian.little,
+      );
+      data.setUint32(15, 1, Endian.little);
+
+      expect(FastGpsPacket.tryParseBinary(payload), isNull);
+    });
+
+    test('preserves at least meter accuracy', () {
+      const latitude = 46.0569123;
+      const longitude = 14.5058123;
+      final packet = FastGpsPacket(
+        senderKey6: 'aabbccddeeff',
+        latitude: latitude,
+        longitude: longitude,
+        timestampSeconds: 1700000000,
+      );
+
+      final parsed = FastGpsPacket.tryParseBinary(packet.encodeBinary());
+      expect(parsed, isNotNull);
+
+      final latMeters = (parsed!.latitude - latitude).abs() * 111320.0;
+      final lonMeters =
+          (parsed.longitude - longitude).abs() *
+          111320.0 *
+          math.cos(latitude * math.pi / 180.0);
+
+      expect(latMeters, lessThan(1.0));
+      expect(lonMeters, lessThan(1.0));
+    });
+  });
+}

windows/flutter/generated_plugin_registrant.cc

@@ -12,7 +12,6 @@
 #include <flutter_blue_plus_winrt/flutter_blue_plus_plugin.h>
 #include <geolocator_windows/geolocator_windows.h>
 #include <nsd_windows/nsd_windows_plugin_c_api.h>
-#include <objectbox_flutter_libs/objectbox_flutter_libs_plugin.h>
 #include <permission_handler_windows/permission_handler_windows_plugin.h>
 #include <record_windows/record_windows_plugin_c_api.h>
 #include <share_plus/share_plus_windows_plugin_c_api.h>
@@ -31,8 +30,6 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("GeolocatorWindows"));
   NsdWindowsPluginCApiRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("NsdWindowsPluginCApi"));
-  ObjectboxFlutterLibsPluginRegisterWithRegistrar(
-      registry->GetRegistrarForPlugin("ObjectboxFlutterLibsPlugin"));
   PermissionHandlerWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("PermissionHandlerWindowsPlugin"));
   RecordWindowsPluginCApiRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -9,7 +9,6 @@ list(APPEND FLUTTER_PLUGIN_LIST
   flutter_blue_plus_winrt
   geolocator_windows
   nsd_windows
-  objectbox_flutter_libs
   permission_handler_windows
   record_windows
   share_plus