TF-297 Get stored language when launch app

lib/features/manage_account/data/local/language_cache_manager.dart

@@ -17,4 +17,14 @@ class LanguageCacheManager {
       _sharedPreferences.setString(keyCountryCode, localeCurrent.countryCode ?? '')
     ]);
   }
+
+  Locale? getStoredLanguage() {
+    final languageCode = _sharedPreferences.getString(keyLanguageCode);
+    final countryCode = _sharedPreferences.getString(keyCountryCode);
+
+    if (languageCode?.isNotEmpty == true) {
+      return Locale(languageCode!, countryCode);
+    }
+    return null;
+  }
 }

lib/features/manage_account/domain/state/save_language_app_state.dart

@@ -1,26 +0,0 @@
-import 'package:core/core.dart';
-
-class SavingLanguageApp extends UIState {
-
-  SavingLanguageApp();
-
-  @override
-  List<Object?> get props => [];
-}
-
-class SaveLanguageAppSuccess extends UIState {
-
-  SaveLanguageAppSuccess();
-
-  @override
-  List<Object?> get props => [];
-}
-
-class SaveLanguageAppFailure extends FeatureFailure {
-  final dynamic exception;
-
-  SaveLanguageAppFailure(this.exception);
-
-  @override
-  List<Object> get props => [exception];
-}

lib/features/manage_account/domain/state/save_language_state.dart

@@ -0,0 +1,30 @@
+import 'dart:ui';
+
+import 'package:core/core.dart';
+
+class SavingLanguage extends UIState {
+
+  SavingLanguage();
+
+  @override
+  List<Object?> get props => [];
+}
+
+class SaveLanguageSuccess extends UIState {
+
+  final Locale localeStored;
+
+  SaveLanguageSuccess(this.localeStored);
+
+  @override
+  List<Object?> get props => [localeStored];
+}
+
+class SaveLanguageFailure extends FeatureFailure {
+  final dynamic exception;
+
+  SaveLanguageFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}

lib/features/manage_account/domain/usecases/save_language_interactor.dart

@@ -5,20 +5,20 @@ import 'package:core/presentation/state/failure.dart';
 import 'package:core/presentation/state/success.dart';
 import 'package:dartz/dartz.dart';
 import 'package:tmail_ui_user/features/manage_account/domain/repository/manage_account_repository.dart';
-import 'package:tmail_ui_user/features/manage_account/domain/state/save_language_app_state.dart';
+import 'package:tmail_ui_user/features/manage_account/domain/state/save_language_state.dart';
 
-class SaveLanguageAppInteractor {
+class SaveLanguageInteractor {
   final ManageAccountRepository manageAccountRepository;
 
-  SaveLanguageAppInteractor(this.manageAccountRepository);
+  SaveLanguageInteractor(this.manageAccountRepository);
 
   Stream<Either<Failure, Success>> execute(Locale localeCurrent) async* {
     try {
-      yield Right(SavingLanguageApp());
+      yield Right(SavingLanguage());
       await manageAccountRepository.persistLanguage(localeCurrent);
-      yield Right(SaveLanguageAppSuccess());
+      yield Right(SaveLanguageSuccess(localeCurrent));
     } catch (exception) {
-      yield Left(SaveLanguageAppFailure(exception));
+      yield Left(SaveLanguageFailure(exception));
     }
   }
 }

lib/features/manage_account/presentation/language_and_region/language_and_region_bindings.dart

@@ -1,14 +1,14 @@
 import 'package:get/get.dart';
 import 'package:tmail_ui_user/features/base/base_bindings.dart';
 import 'package:tmail_ui_user/features/manage_account/domain/repository/manage_account_repository.dart';
-import 'package:tmail_ui_user/features/manage_account/domain/usecases/save_language_app_interactor.dart';
+import 'package:tmail_ui_user/features/manage_account/domain/usecases/save_language_interactor.dart';
 import 'package:tmail_ui_user/features/manage_account/presentation/language_and_region/language_and_region_controller.dart';
 
 class LanguageAndRegionBindings extends BaseBindings {
 
   @override
   void bindingsController() {
-    Get.lazyPut(() => LanguageAndRegionController(Get.find<SaveLanguageAppInteractor>()));
+    Get.lazyPut(() => LanguageAndRegionController(Get.find<SaveLanguageInteractor>()));
   }
 
   @override
@@ -21,7 +21,7 @@ class LanguageAndRegionBindings extends BaseBindings {
 
   @override
   void bindingsInteractor() {
-    Get.lazyPut(() => SaveLanguageAppInteractor(Get.find<ManageAccountRepository>()));
+    Get.lazyPut(() => SaveLanguageInteractor(Get.find<ManageAccountRepository>()));
   }
 
   @override

lib/features/manage_account/presentation/language_and_region/language_and_region_controller.dart

@@ -3,17 +3,18 @@ import 'dart:ui';
 
 import 'package:get/get.dart';
 import 'package:tmail_ui_user/features/base/base_controller.dart';
-import 'package:tmail_ui_user/features/manage_account/domain/usecases/save_language_app_interactor.dart';
+import 'package:tmail_ui_user/features/manage_account/domain/state/save_language_state.dart';
+import 'package:tmail_ui_user/features/manage_account/domain/usecases/save_language_interactor.dart';
 import 'package:tmail_ui_user/main/localizations/localization_service.dart';
 
 class LanguageAndRegionController extends BaseController {
 
-  final SaveLanguageAppInteractor _saveLanguageAppInteractor;
+  final SaveLanguageInteractor _saveLanguageInteractor;
 
   final listSupportedLanguages = <Locale>[].obs;
   final languageSelected = LocalizationService.defaultLocale.obs;
 
-  LanguageAndRegionController(this._saveLanguageAppInteractor);
+  LanguageAndRegionController(this._saveLanguageInteractor);
 
   @override
   void onReady() {
@@ -22,7 +23,15 @@ class LanguageAndRegionController extends BaseController {
   }
 
   @override
-  void onDone() {}
+  void onDone() {
+    viewState.value.fold(
+        (failure) => null,
+        (success) {
+            if (success is SaveLanguageSuccess) {
+              LocalizationService.changeLocale(success.localeStored.languageCode);
+            }
+        });
+  }
 
   @override
   void onError(error) {}
@@ -40,12 +49,10 @@ class LanguageAndRegionController extends BaseController {
 
   void selectLanguage(Locale? selectedLocale) {
     languageSelected.value = selectedLocale ?? LocalizationService.defaultLocale;
-    LocalizationService.changeLocale(languageSelected.value.languageCode);
-
     _saveLanguage(languageSelected.value);
   }
 
   void _saveLanguage(Locale localeCurrent) {
-    consumeState(_saveLanguageAppInteractor.execute(localeCurrent));
+    consumeState(_saveLanguageInteractor.execute(localeCurrent));
   }
 }

lib/main/localizations/localization_service.dart

@@ -1,7 +1,9 @@
 
 import 'dart:ui';
 
+import 'package:core/utils/app_logger.dart';
 import 'package:get/get.dart';
+import 'package:tmail_ui_user/features/manage_account/data/local/language_cache_manager.dart';
 
 class LocalizationService extends Translations {
 
@@ -25,17 +27,25 @@ class LocalizationService extends Translations {
   static final locale = _getLocaleFromLanguage();
 
   static void changeLocale(String langCode) {
+    log('LocalizationService::changeLocale(): langCode: $langCode');
     final locale = _getLocaleFromLanguage(langCode: langCode);
     Get.updateLocale(locale);
   }
 
   static Locale _getLocaleFromLanguage({String? langCode}) {
-    final lang = langCode ?? Get.deviceLocale?.languageCode;
+    final languageCacheManager = Get.find<LanguageCacheManager>();
+    final localeStored = languageCacheManager.getStoredLanguage();
 
-    final localeSelected = supportedLocales
+    log('LocalizationService::_getLocaleFromLanguage(): localeStored: ${localeStored.toString()}');
-        .firstWhereOrNull((locale) => locale.languageCode == lang);
 
-    return localeSelected ?? Get.locale ?? defaultLocale;
+    if (localeStored != null) {
+      return localeStored;
+    } else {
+      final languageCodeCurrent = langCode ?? Get.deviceLocale?.languageCode;
+      final localeSelected = supportedLocales
+          .firstWhereOrNull((locale) => locale.languageCode == languageCodeCurrent);
+      return localeSelected ?? Get.locale ?? defaultLocale;
+    }
   }
 
   @override