replace globals with app environment

lib/globals.dart

@@ -1,17 +1,28 @@
 import 'package:camera/camera.dart';
 import 'package:flutter/material.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:twonly/src/database/twonly.db.dart';
 import 'package:twonly/src/model/json/userdata.dart';
 import 'package:twonly/src/services/api.service.dart';
 import 'package:twonly/src/services/subscription.service.dart';
 
+class AppEnvironment {
+  static late final String cacheDir;
+  static late final String supportDir;
+  static late final List<CameraDescription> cameras;
+
+  static Future<void> init() async {
+    cacheDir = (await getApplicationCacheDirectory()).path;
+    supportDir = (await getApplicationSupportDirectory()).path;
+    cameras = await availableCameras();
+  }
+}
+
 late ApiService apiService;
 
 // uses for background notification
 late TwonlyDB twonlyDB;
 
-List<CameraDescription> gCameras = <CameraDescription>[];
-
 // Cached UserData in the memory. Every time the user data is changed the `updateUserdata` function is called,
 // which will update this global variable. The variable is set in the main.dart and after the user has registered in the register.view.dart
 late UserData gUser;
@@ -36,8 +47,5 @@ bool globalIsInBackgroundTask = false;
 bool globalAllowErrorTrackingViaSentry = false;
 bool globalGotMessageFromServer = false;
 
-late String globalApplicationCacheDirectory;
-late String globalApplicationSupportDirectory;
-
 final GlobalKey<ScaffoldMessengerState> globalRootScaffoldMessengerKey =
     GlobalKey<ScaffoldMessengerState>();

lib/main.dart

@@ -1,11 +1,9 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:camera/camera.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
-import 'package:path_provider/path_provider.dart';
 import 'package:provider/provider.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
 import 'package:twonly/app.dart';
@@ -35,10 +33,7 @@ void main() async {
   SentryWidgetsFlutterBinding.ensureInitialized();
 
   await RustLib.init();
-
-  globalApplicationCacheDirectory = (await getApplicationCacheDirectory()).path;
-  globalApplicationSupportDirectory =
-      (await getApplicationSupportDirectory()).path;
+  await AppEnvironment.init();
 
   initLogger();
 
@@ -46,8 +41,8 @@ void main() async {
 
   await bridge.initializeTwonlyFlutter(
     config: bridge.TwonlyConfig(
-      databasePath: '$globalApplicationSupportDirectory/twonly.sqlite',
-      dataDirectory: globalApplicationSupportDirectory,
+      databasePath: '${AppEnvironment.supportDir}/twonly.sqlite',
+      dataDirectory: AppEnvironment.supportDir,
     ),
   );
 
@@ -56,7 +51,7 @@ void main() async {
   var user = await getUser();
 
   if (Platform.isIOS && user != null) {
-    final db = File('$globalApplicationSupportDirectory/twonly.sqlite');
+    final db = File('${AppEnvironment.supportDir}/twonly.sqlite');
     if (!db.existsSync()) {
       Log.error('[twonly] IOS: App was removed and then reinstalled again...');
       await const FlutterSecureStorage().deleteAll();
@@ -92,8 +87,6 @@ void main() async {
 
   unawaited(setupPushNotification());
 
-  gCameras = await availableCameras();
-
   apiService = ApiService();
   twonlyDB = TwonlyDB();
 

lib/src/localization/translations

@@ -1 +1 @@
-Subproject commit 0029f698ea3deb47dedc4ee1f37e5688d1f83f9b
+Subproject commit e1ac9e6c476f82819063a8087af4d42acc1167d4

lib/src/services/background/callback_dispatcher.background.dart

@@ -62,9 +62,8 @@ Future<bool> initBackgroundExecution() async {
   }
 
   SentryWidgetsFlutterBinding.ensureInitialized();
-  globalApplicationCacheDirectory = (await getApplicationCacheDirectory()).path;
-  globalApplicationSupportDirectory =
-      (await getApplicationSupportDirectory()).path;
+  AppEnvironment.cacheDir = (await getApplicationCacheDirectory()).path;
+  AppEnvironment.supportDir = (await getApplicationSupportDirectory()).path;
 
   initLogger();
 

lib/src/services/backup/create.backup.dart

@@ -41,9 +41,9 @@ Future<void> performTwonlySafeBackup({bool force = false}) async {
 
   Log.info('Starting new twonly Backup!');
 
-  final baseDir = globalApplicationSupportDirectory;
-
-  final backupDir = Directory(join(baseDir, 'backup_twonly_safe/'));
+  final backupDir = Directory(
+    join(AppEnvironment.supportDir, 'backup_twonly_safe/'),
+  );
   await backupDir.create(recursive: true);
 
   final backupDatabaseFile = File(join(backupDir.path, 'twonly.backup.sqlite'));
@@ -53,7 +53,9 @@ Future<void> performTwonlySafeBackup({bool force = false}) async {
   );
 
   // copy database
-  final originalDatabase = File(join(baseDir, 'twonly.sqlite'));
+  final originalDatabase = File(
+    join(AppEnvironment.supportDir, 'twonly.sqlite'),
+  );
   await originalDatabase.copy(backupDatabaseFile.path);
 
   driftRuntimeOptions.dontWarnAboutMultipleDatabases = true;

lib/src/services/backup/restore.backup.dart

@@ -90,7 +90,7 @@ Future<void> handleBackupData(
   );
 
   final originalDatabase = File(
-    join(globalApplicationSupportDirectory, 'twonly.sqlite'),
+    join(AppEnvironment.supportDir, 'twonly.sqlite'),
   );
   await originalDatabase.writeAsBytes(backupContent.twonlyDatabase);
 

lib/src/services/mediafiles/mediafile.service.dart

@@ -27,7 +27,7 @@ class MediaFileService {
     try {
       final tempDirectory = MediaFileService.buildDirectoryPath(
         'tmp',
-        globalApplicationSupportDirectory,
+        AppEnvironment.supportDir,
       );
 
       final files = tempDirectory.listSync();
@@ -307,7 +307,7 @@ class MediaFileService {
     }
     final mediaBaseDir = buildDirectoryPath(
       directory,
-      globalApplicationSupportDirectory,
+      AppEnvironment.supportDir,
     );
     return File(
       join(mediaBaseDir.path, '${mediaFile.mediaId}$namePrefix.$extension'),

lib/src/utils/avatars.dart

@@ -37,7 +37,7 @@ Future<void> createPushAvatars({int? forceForUserId}) async {
 
 File avatarPNGFile(int contactId) {
   final avatarsDirectory = Directory(
-    '$globalApplicationCacheDirectory/avatars',
+    '${AppEnvironment.cacheDir}/avatars',
   );
 
   if (!avatarsDirectory.existsSync()) {

lib/src/utils/exclusive_access.dart

@@ -8,7 +8,7 @@ Future<T> exclusiveAccess<T>({
   required Future<T> Function() action,
   required Mutex mutex,
 }) async {
-  final lockFile = File('$globalApplicationSupportDirectory/$lockName.lock');
+  final lockFile = File('${AppEnvironment.supportDir}/$lockName.lock');
   return mutex.protect(() async {
     var lockAcquired = false;
 

lib/src/utils/keyvalue.dart

@@ -5,7 +5,7 @@ import 'package:twonly/src/utils/log.dart';
 
 class KeyValueStore {
   static Future<File> _getFilePath(String key) async {
-    return File('$globalApplicationSupportDirectory/keyvalue/$key.json');
+    return File('${AppEnvironment.supportDir}/keyvalue/$key.json');
   }
 
   static Future<void> delete(String key) async {

lib/src/utils/log.dart

@@ -72,7 +72,7 @@ class Log {
 
 Future<String> loadLogFile() async {
   return _protectFileAccess(() async {
-    final logFile = File('$globalApplicationSupportDirectory/app.log');
+    final logFile = File('${AppEnvironment.supportDir}/app.log');
 
     if (logFile.existsSync()) {
       return logFile.readAsString();
@@ -84,7 +84,7 @@ Future<String> loadLogFile() async {
 
 Future<String> readLast1000Lines() async {
   return _protectFileAccess(() async {
-    final file = File('$globalApplicationSupportDirectory/app.log');
+    final file = File('${AppEnvironment.supportDir}/app.log');
     if (!file.existsSync()) return '';
     final all = await file.readAsLines();
     final start = all.length > 1000 ? all.length - 1000 : 0;
@@ -103,7 +103,7 @@ Future<T> _protectFileAccess<T>(Future<T> Function() action) async {
 }
 
 Future<void> _writeLogToFile(LogRecord record) async {
-  final logFile = File('$globalApplicationSupportDirectory/app.log');
+  final logFile = File('${AppEnvironment.supportDir}/app.log');
 
   final logMessage =
       '${clock.now().toString().split(".")[0]} ${record.level.name} [twonly] ${record.loggerName} > ${record.message}\n';
@@ -127,7 +127,7 @@ Future<void> _writeLogToFile(LogRecord record) async {
 
 Future<void> cleanLogFile() async {
   return _protectFileAccess(() async {
-    final logFile = File('$globalApplicationSupportDirectory/app.log');
+    final logFile = File('${AppEnvironment.supportDir}/app.log');
 
     if (!logFile.existsSync()) {
       return;
@@ -162,7 +162,7 @@ Future<void> cleanLogFile() async {
 
 Future<bool> deleteLogFile() async {
   return _protectFileAccess(() async {
-    final logFile = File('$globalApplicationSupportDirectory/app.log');
+    final logFile = File('${AppEnvironment.supportDir}/app.log');
 
     if (logFile.existsSync()) {
       await logFile.delete();

lib/src/views/camera/camera_preview_components/camera_preview_controller_view.dart

@@ -592,7 +592,7 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
 
   @override
   Widget build(BuildContext context) {
-    if (mc.selectedCameraDetails.cameraId >= gCameras.length ||
+    if (mc.selectedCameraDetails.cameraId >= AppEnvironment.cameras.length ||
         mc.cameraController == null) {
       return Container();
     }

lib/src/views/camera/camera_preview_components/main_camera_controller.dart

@@ -105,16 +105,17 @@ class MainCameraController {
     initCameraStarted = true;
 
     var cameraId = sCameraId;
-    if (cameraId >= gCameras.length) {
+    if (cameraId >= AppEnvironment.cameras.length) {
       Log.warn(
-        'Trying to select a non existing camera $cameraId >= ${gCameras.length}',
+        'Trying to select a non existing camera $cameraId >= ${AppEnvironment.cameras.length}',
       );
       return;
     }
 
     if (init) {
-      for (; cameraId < gCameras.length; cameraId++) {
-        if (gCameras[cameraId].lensDirection == CameraLensDirection.back) {
+      for (; cameraId < AppEnvironment.cameras.length; cameraId++) {
+        if (AppEnvironment.cameras[cameraId].lensDirection ==
+            CameraLensDirection.back) {
           break;
         }
       }
@@ -124,7 +125,7 @@ class MainCameraController {
 
     if (cameraController == null) {
       cameraController = CameraController(
-        gCameras[cameraId],
+        AppEnvironment.cameras[cameraId],
         ResolutionPreset.high,
         enableAudio: await Permission.microphone.isGranted,
         imageFormatGroup: Platform.isAndroid
@@ -150,7 +151,7 @@ class MainCameraController {
       selectedCameraDetails.scaleFactor = 1;
 
       await cameraController?.setZoomLevel(1);
-      await cameraController?.setDescription(gCameras[cameraId]);
+      await cameraController?.setDescription(AppEnvironment.cameras[cameraId]);
       try {
         if (!isVideoRecording) {
           await cameraController?.startImageStream(_processCameraImage);

lib/src/views/camera/camera_preview_components/zoom_selector.dart

@@ -51,11 +51,11 @@ class _CameraZoomButtonsState extends State<CameraZoomButtons> {
   Future<void> initAsync() async {
     showWideAngleZoom = (await widget.controller.getMinZoomLevel()) < 1;
 
-    var index = gCameras.indexWhere(
+    var index = AppEnvironment.cameras.indexWhere(
       (t) => t.lensType == CameraLensType.ultraWide,
     );
     if (index == -1) {
-      index = gCameras.indexWhere(
+      index = AppEnvironment.cameras.indexWhere(
         (t) => t.lensType == CameraLensType.wide,
       );
     }

lib/src/views/settings/data_and_storage/export_media.view.dart

@@ -48,7 +48,7 @@ class _ExportMediaViewState extends State<ExportMediaView> {
   Directory _mediaFolder() {
     final dir = MediaFileService.buildDirectoryPath(
       'stored',
-      globalApplicationSupportDirectory,
+      AppEnvironment.supportDir,
     );
     if (!dir.existsSync()) dir.createSync(recursive: true);
     return dir;