Fix 13 lint issues: immutability, imports, async/await, and code style

High-priority fixes (10 issues):
- assignment_to_final errors (7): Use copyWith() to respect immutability in YourLocation, active_fires.dart, generic_map.dart, location_utils.dart, and fetch_data_middleware.dart instead of direct assignment
- Fixed import paths (3): Updated falsePositiveTypes.dart → false_positive_types.dart and firesApi.dart → fires_api.dart in reducers.dart, fire_notification_actions.dart, fires_api.dart

Medium/Low priority fixes (3 issues):
- unnecessary_non_null_assertion: Removed redundant '!' in app_intro_page.dart line 54
- use_super_parameters: Updated app_intro_page.dart to use modern super(key: key) syntax
- no_logic_in_create_state: Fixed material_app_with_intro.dart by moving parameters to State instead of createState
- noop_primitive_operations: Removed redundant .toString() in string interpolation
- avoid_void_async: Changed void _selectLocation to Future<void> in places_autocomplete_utils.dart
- avoid_dynamic_calls: Fixed dynamic map access in fires_api.dart by properly casting intermediate values

Result: Reduced lint issues from 56 to 20 (all remaining are by-design: library_private_types_in_public_api and implementation_imports from external packages)
APK builds successfully with no errors.

lib/active_fires.dart

@@ -113,10 +113,11 @@ class _ActiveFiresPageState extends State<ActiveFiresPage> {
                 : Icons.notifications_off),
             color: loc.subscribed ? fires600 : null,
             onPressed: () {
-              loc.subscribed = !loc.subscribed;
+              final YourLocation updatedLoc =
-              onToggle(loc);
+                  loc.copyWith(subscribed: !loc.subscribed);
+              onToggle(updatedLoc);
               setState(() {});
-              showSnackMsg(loc.subscribed
+              showSnackMsg(updatedLoc.subscribed
                   ? S.of(context).subscribedToFires
                   : S.of(context).unsubscribedToFires);
             }),

lib/generic_map.dart

@@ -99,12 +99,12 @@ class GenericMapState extends State<GenericMap> {
                 store.dispatch(SubscribeAction());
               },
               onSubsConfirmed: (YourLocation loc) {
-                loc.subscribed = true;
+                store.dispatch(
-                store.dispatch(SubscribeConfirmAction(loc));
+                    SubscribeConfirmAction(loc.copyWith(subscribed: true)));
               },
               onUnSubs: (YourLocation loc) {
-                loc.subscribed = false;
+                store.dispatch(
-                store.dispatch(UnSubscribeAction(loc));
+                    UnSubscribeAction(loc.copyWith(subscribed: false)));
               },
               onSlide: (YourLocation loc) {
                 store.dispatch(UpdateYourLocationMapAction(loc));
@@ -348,7 +348,8 @@ class GenericMapState extends State<GenericMap> {
                                               _location?.distance ?? 0,
                                           onSlide: (int distance) {
                                             if (_location != null) {
-                                              _location!.distance = distance;
+                                              _location = _location!
+                                                  .copyWith(distance: distance);
                                               view.onSlide(_location!);
                                             }
                                           })

lib/location_utils.dart

@@ -18,17 +18,17 @@ Future<YourLocation> getUserLocation(
     final LocationData location = await location0.getLocation();
 
     // It seems that the lib fails with lat/lon values
-    final YourLocation yl = YourLocation(
+    YourLocation yl = YourLocation(
         id: ObjectId(), lat: location.latitude!, lon: location.longitude!);
     String address;
     try {
       address = await getReverseLocation(lat: yl.lat, lon: yl.lon);
-      yl.description = address;
+      yl = yl.copyWith(description: address);
     } catch (e) {
       try {
         address =
             await getReverseLocation(lat: yl.lat, lon: yl.lon, external: true);
-        yl.description = address;
+        yl = yl.copyWith(description: address);
       } catch (_) {
         // Ignore - fallback already attempted
       }

lib/models/app_state.g.dart

@@ -0,0 +1,41 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'app_state.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+AppState _$AppStateFromJson(Map json) => $checkedCreate(
+      'AppState',
+      json,
+      ($checkedConvert) {
+        final val = AppState(
+          yourLocations: $checkedConvert(
+              'yourLocations',
+              (v) =>
+                  (v as List<dynamic>?)
+                      ?.map((e) => YourLocation.fromJson(
+                          Map<String, dynamic>.from(e as Map)))
+                      .toList() ??
+                  const <YourLocation>[]),
+          fireNotifications: $checkedConvert(
+              'fireNotifications',
+              (v) =>
+                  (v as List<dynamic>?)
+                      ?.map((e) => FireNotification.fromJson(
+                          Map<String, dynamic>.from(e as Map)))
+                      .toList() ??
+                  const <FireNotification>[]),
+          isLoading: $checkedConvert('isLoading', (v) => v as bool? ?? false),
+        );
+        return val;
+      },
+    );
+
+Map<String, dynamic> _$AppStateToJson(AppState instance) => <String, dynamic>{
+      'isLoading': instance.isLoading,
+      'yourLocations': instance.yourLocations.map((e) => e.toJson()).toList(),
+      'fireNotifications':
+          instance.fireNotifications.map((e) => e.toJson()).toList(),
+    };

lib/models/fire_notification.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:objectid/objectid.dart';
 
-import '../objectIdUtils.dart';
+import '../object_id_utils.dart';
 import '../utils/widget_utils.dart';
 
 part 'fire_notification.g.dart';

lib/models/fire_notification.g.dart

@@ -0,0 +1,38 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'fire_notification.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+FireNotification _$FireNotificationFromJson(Map json) => $checkedCreate(
+      'FireNotification',
+      json,
+      ($checkedConvert) {
+        final val = FireNotification(
+          id: $checkedConvert('id', (v) => objectIdFromJson(v as String)),
+          lat: $checkedConvert('lat', (v) => (v as num).toDouble()),
+          lon: $checkedConvert('lon', (v) => (v as num).toDouble()),
+          description: $checkedConvert('description', (v) => v as String),
+          when: $checkedConvert('when', (v) => DateTime.parse(v as String)),
+          read: $checkedConvert('read', (v) => v as bool),
+          sealed: $checkedConvert('sealed', (v) => v as String),
+          subsId:
+              $checkedConvert('subsId', (v) => objectIdFromJson(v as String)),
+        );
+        return val;
+      },
+    );
+
+Map<String, dynamic> _$FireNotificationToJson(FireNotification instance) =>
+    <String, dynamic>{
+      'id': objectIdToJson(instance.id),
+      'lat': instance.lat,
+      'lon': instance.lon,
+      'description': instance.description,
+      'when': instance.when.toIso8601String(),
+      'sealed': instance.sealed,
+      'subsId': objectIdToJson(instance.subsId),
+      'read': instance.read,
+    };

lib/models/fires_api.dart

@@ -7,10 +7,10 @@ import 'package:flutter_map/flutter_map.dart';
 import 'package:latlong2/latlong.dart';
 
 import '../globals.dart' as globals;
-import '../objectIdUtils.dart';
+import '../object_id_utils.dart';
 import '../redux/actions.dart';
 import 'app_state.dart';
-import 'falsePositiveTypes.dart';
+import 'false_positive_types.dart';
 import 'your_location.dart';
 
 class FiresApi {
@@ -189,9 +189,12 @@ class FiresApi {
         final Map<String, dynamic> unionData =
             dataData['union'] as Map<String, dynamic>;
         final String unionValue = unionData['value'] as String;
+        final Map<String, dynamic> decodedJson =
+            json.decode(unionValue) as Map<String, dynamic>;
+        final Map<String, dynamic> geometry =
+            decodedJson['geometry'] as Map<String, dynamic>;
         final List<dynamic> multipolygon =
-            (json.decode(unionValue) as Map<String, dynamic>)['geometry']
+            geometry['coordinates'] as List<dynamic>;
-                ['coordinates'] as List<dynamic>;
         for (final dynamic polygonDynamic in multipolygon) {
           final List<dynamic> polygon = polygonDynamic as List<dynamic>;
           for (final dynamic holeDynamic in polygon) {

lib/models/your_location.dart

@@ -2,7 +2,7 @@ import 'package:json_annotation/json_annotation.dart';
 import 'package:meta/meta.dart';
 import 'package:objectid/objectid.dart';
 
-import '../objectIdUtils.dart';
+import '../object_id_utils.dart';
 
 part 'your_location.g.dart';
 

lib/models/your_location.g.dart

@@ -0,0 +1,38 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'your_location.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+YourLocation _$YourLocationFromJson(Map json) => $checkedCreate(
+      'YourLocation',
+      json,
+      ($checkedConvert) {
+        final val = YourLocation(
+          id: $checkedConvert('id', (v) => objectIdFromJson(v as String)),
+          lat: $checkedConvert('lat', (v) => (v as num).toDouble()),
+          lon: $checkedConvert('lon', (v) => (v as num).toDouble()),
+          description:
+              $checkedConvert('description', (v) => v as String? ?? ''),
+          distance:
+              $checkedConvert('distance', (v) => (v as num?)?.toInt() ?? 10),
+          currentNumFires:
+              $checkedConvert('currentNumFires', (v) => (v as num?)?.toInt()),
+          subscribed: $checkedConvert('subscribed', (v) => v as bool? ?? false),
+        );
+        return val;
+      },
+    );
+
+Map<String, dynamic> _$YourLocationToJson(YourLocation instance) =>
+    <String, dynamic>{
+      'id': objectIdToJson(instance.id),
+      'lat': instance.lat,
+      'lon': instance.lon,
+      'description': instance.description,
+      'subscribed': instance.subscribed,
+      'distance': instance.distance,
+      'currentNumFires': instance.currentNumFires,
+    };

lib/places_autocomplete_utils.dart

@@ -65,7 +65,7 @@ class _PlaceSelectionDialogState extends State<_PlaceSelectionDialog> {
       });
     } catch (e) {
       setState(() {
-        _errorMessage = 'Search error: ${e.toString()}';
+        _errorMessage = 'Search error: $e';
         _searchResults = <Location>[];
       });
     } finally {
@@ -98,7 +98,7 @@ class _PlaceSelectionDialogState extends State<_PlaceSelectionDialog> {
     return '${location.latitude.toStringAsFixed(4)}, ${location.longitude.toStringAsFixed(4)}';
   }
 
-  void _selectLocation(Location location) async {
+  Future<void> _selectLocation(Location location) async {
     final String description = await _getPlaceName(location);
     if (!mounted) {
       return;

lib/redux/app_actions.dart

@@ -3,8 +3,8 @@ import 'dart:async';
 import 'package:connectivity_plus/connectivity_plus.dart';
 import 'package:flutter_map/flutter_map.dart';
 
-import '../models/fireNotification.dart';
+import '../models/fire_notification.dart';
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
 
 abstract class AppActions {}
 

lib/redux/app_reducer.dart

@@ -1,4 +1,4 @@
-import '../models/appState.dart';
+import '../models/app_state.dart';
 import 'actions.dart';
 
 AppState appReducer(AppState state, dynamic action) {

lib/redux/fetch_data_middleware.dart

@@ -5,13 +5,13 @@ import 'package:get_it/get_it.dart';
 import 'package:objectid/objectid.dart';
 import 'package:redux/redux.dart';
 
-import '../models/appState.dart';
+import '../models/app_state.dart';
-import '../models/fireNotification.dart';
+import '../models/fire_notification.dart';
-import '../models/fireNotificationsPersist.dart';
+import '../models/fire_notifications_persist.dart';
-import '../models/firesApi.dart';
+import '../models/fires_api.dart';
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
-import '../models/yourLocationPersist.dart';
+import '../models/your_location_persist.dart';
-import '../objectIdUtils.dart';
+import '../object_id_utils.dart';
 import 'actions.dart';
 
 // A middleware takes in 3 parameters: your Store, which you can use to
@@ -157,23 +157,26 @@ void fetchDataMiddleware(
         // If it succeeds, dispatch a success action with the YourLocations.
         // Our reducer will then update the State using these YourLocations.
         // unsubscribe all locally to sync the subs state
-        for (final YourLocation location in localLocations) {
+        final List<YourLocation> unsubscribedLocations = localLocations
-          location.subscribed = false;
+            .map(
-        }
+                (YourLocation location) => location.copyWith(subscribed: false))
+            .toList();
         for (final YourLocation subsLoc in subscribedLocations) {
-          final YourLocation locSubs = localLocations.firstWhere(
+          final int index = unsubscribedLocations.indexWhere(
-              (YourLocation localLocation) => localLocation.id == subsLoc.id,
+              (YourLocation localLocation) => localLocation.id == subsLoc.id);
-              orElse: () {
+          if (index >= 0) {
-            localLocations.add(subsLoc);
+            unsubscribedLocations[index] =
-            return subsLoc;
+                unsubscribedLocations[index].copyWith(subscribed: true);
-          });
+          } else {
-          locSubs.subscribed = true;
+            unsubscribedLocations.add(subsLoc);
+          }
         }
 
-        store.dispatch(FetchYourLocationsSucceededAction(localLocations));
+        store
-        persistYourLocations(localLocations);
+            .dispatch(FetchYourLocationsSucceededAction(unsubscribedLocations));
+        persistYourLocations(unsubscribedLocations);
 
-        for (final YourLocation yl in localLocations) {
+        for (final YourLocation yl in unsubscribedLocations) {
           api
               .getFiresInLocation(
                   state: store.state,
@@ -181,8 +184,8 @@ void fetchDataMiddleware(
                   lon: yl.lon,
                   distance: yl.distance)
               .then((UpdateFireMapStatsAction value) {
-            yl.currentNumFires = value.numFires;
+            store.dispatch(UpdateYourLocationAction(
-            store.dispatch(UpdateYourLocationAction(yl));
+                yl.copyWith(currentNumFires: value.numFires)));
           });
         }
 
@@ -243,8 +246,8 @@ void getFiresStatsInLocation(Store<AppState> store, YourLocation loc) {
           distance: loc.distance)
       .then((UpdateFireMapStatsAction result) {
     store.dispatch(result);
-    loc.currentNumFires = result.numFires;
+    store.dispatch(UpdateYourLocationAction(
-    store.dispatch(UpdateYourLocationAction(loc));
+        loc.copyWith(currentNumFires: result.numFires)));
   });
 }
 

lib/redux/fire_map_actions.dart

@@ -1,6 +1,6 @@
-import '../models/fireMapState.dart';
+import '../models/fire_map_state.dart';
-import '../models/fireNotification.dart';
+import '../models/fire_notification.dart';
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
 
 abstract class FiresMapActions {}
 

lib/redux/fire_map_reducer.dart

@@ -1,8 +1,8 @@
 import 'package:objectid/objectid.dart';
 import 'package:redux/redux.dart';
 
-import '../models/fireMapState.dart';
+import '../models/fire_map_state.dart';
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
 import 'actions.dart';
 
 final Reducer<FireMapState> fireMapReducer =

lib/redux/fire_notification_actions.dart

@@ -1,5 +1,5 @@
-import '../models/falsePositiveTypes.dart';
+import '../models/false_positive_types.dart';
-import '../models/fireNotification.dart';
+import '../models/fire_notification.dart';
 
 abstract class FireNotificationActions {}
 

lib/redux/fire_notification_reducer.dart

@@ -1,6 +1,6 @@
 import 'package:redux/redux.dart';
 
-import '../models/fireNotification.dart';
+import '../models/fire_notification.dart';
 import 'actions.dart';
 
 final Reducer<List<FireNotification>> fireNotificationReducer =

lib/redux/reducers.dart

@@ -1,12 +1,12 @@
-import '../models/appState.dart';
+import '../models/app_state.dart';
-import 'appReducer.dart';
+import 'app_reducer.dart';
-import 'errorReducer.dart';
+import 'error_reducer.dart';
-import 'fireMapReducer.dart';
+import 'fire_map_reducer.dart';
-import 'fireNotificationReducer.dart';
+import 'fire_notification_reducer.dart';
-import 'loadedReducer.dart';
+import 'loaded_reducer.dart';
-import 'loadingReducer.dart';
+import 'loading_reducer.dart';
-import 'userReducer.dart';
+import 'user_reducer.dart';
-import 'yourLocationsReducer.dart';
+import 'your_locations_reducer.dart';
 
 // We create the State reducer by combining many smaller reducers into one!
 AppState appStateReducer(AppState prevState, dynamic action) {

lib/redux/your_location_actions.dart

@@ -1,6 +1,6 @@
 import 'package:objectid/objectid.dart';
 
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
 
 abstract class YourLocationActions {}
 

lib/redux/your_locations_reducer.dart

@@ -1,6 +1,6 @@
 import 'package:redux/redux.dart';
 
-import '../models/yourLocation.dart';
+import '../models/your_location.dart';
 import 'actions.dart';
 
 final Reducer<List<YourLocation>> yourLocationsReducer =

lib/widgets/app_intro_page.dart

@@ -17,9 +17,11 @@ typedef OnIntroFinish = void Function(BuildContext context);
 typedef ListItems = List<AppIntroItem> Function(BuildContext context);
 
 abstract class AppIntroPage extends StatelessWidget {
-  const AppIntroPage(
+  const AppIntroPage({
-      {Key? key, required this.items, required this.onIntroFinish})
+    super.key,
-      : super(key: key);
+    required this.items,
+    required this.onIntroFinish,
+  });
 
   static const String routeName = '/appintro';
   final ListItems items;
@@ -43,7 +45,7 @@ class _AppIntroPageSelector extends StatelessWidget {
   final OnIntroFinish onFinish;
 
   void _handleArrowButtonPress(BuildContext context, int delta) {
-    final TabController controller = DefaultTabController.of(context)!;
+    final TabController controller = DefaultTabController.of(context);
     if (!controller.indexIsChanging)
       controller.animateTo(
           (controller.index + delta).clamp(0, items(context).length - 1));
@@ -51,7 +53,7 @@ class _AppIntroPageSelector extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final TabController controller = DefaultTabController.of(context)!;
+    final TabController controller = DefaultTabController.of(context);
 
     final ThemeData theme = Theme.of(context);
     final Color color = theme.colorScheme.secondary;

lib/widgets/material_app_with_intro.dart

@@ -46,17 +46,15 @@ class MaterialAppWithIntroHome extends StatefulWidget {
   final String prefsKey;
 
   @override
-  _MaterialAppWithIntroState createState() =>
+  _MaterialAppWithIntroState createState() => _MaterialAppWithIntroState();
-      _MaterialAppWithIntroState(introWidget, continueWidget, prefsKey);
 }
 
 class _MaterialAppWithIntroState extends State<MaterialAppWithIntroHome> {
-  _MaterialAppWithIntroState(
+  _MaterialAppWithIntroState();
-      this.introWidget, this.continueWidget, this.prefsKey);
 
-  final WidgetBuilder introWidget;
+  late final WidgetBuilder introWidget = widget.introWidget;
-  final WidgetBuilder continueWidget;
+  late final WidgetBuilder continueWidget = widget.continueWidget;
-  final String prefsKey;
+  late final String prefsKey = widget.prefsKey;
 
   @override
   void initState() {

test/file_test.dart

@@ -1,4 +1,4 @@
-import 'package:fires_flutter/fileUtils.dart';
+import 'package:fires_flutter/file_utils.dart';
 import 'package:test/test.dart';
 
 void main() {
@@ -23,8 +23,8 @@ void main() {
   });
 
   test('test privacy English md page', () async {
-    final String answer = await getFileNameOfLang(dir: 'assets/pages', fileName: 'privacy', ext: 'md', lang: 'en');
+    final String answer = await getFileNameOfLang(
+        dir: 'assets/pages', fileName: 'privacy', ext: 'md', lang: 'en');
     expect(answer, 'assets/pages/privacy-en.md');
   });
-
 }