TF-297 Add controller/bindings for LanguageAndRegion

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

@@ -0,0 +1,31 @@
+import 'package:get/get.dart';
+import 'package:tmail_ui_user/features/base/base_bindings.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());
+  }
+
+  @override
+  void bindingsDataSource() {
+  }
+
+  @override
+  void bindingsDataSourceImpl() {
+  }
+
+  @override
+  void bindingsInteractor() {
+  }
+
+  @override
+  void bindingsRepository() {
+  }
+
+  @override
+  void bindingsRepositoryImpl() {
+  }
+}

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

@@ -0,0 +1,40 @@
+
+import 'dart:ui';
+
+import 'package:get/get.dart';
+import 'package:tmail_ui_user/features/base/base_controller.dart';
+import 'package:tmail_ui_user/main/localizations/localization_service.dart';
+
+class LanguageAndRegionController extends BaseController {
+
+  final listSupportedLanguages = <Locale>[].obs;
+  final languageSelected = LocalizationService.defaultLocale.obs;
+
+  @override
+  void onReady() {
+    _setUpSupportedLanguages();
+    super.onReady();
+  }
+
+  @override
+  void onDone() {}
+
+  @override
+  void onError(error) {}
+
+  void _setUpSupportedLanguages() {
+    listSupportedLanguages.value = LocalizationService.supportedLocales;
+
+    final currentLocale = Get.locale;
+    if (currentLocale != null) {
+      languageSelected.value = currentLocale;
+    } else {
+      languageSelected.value = LocalizationService.defaultLocale;
+    }
+  }
+
+  void selectLanguage(Locale? selectedLocale) {
+    languageSelected.value = selectedLocale ?? LocalizationService.defaultLocale;
+    LocalizationService.changeLocale(languageSelected.value.languageCode);
+  }
+}