TF-438 Implement get stored old email state

lib/features/email/domain/state/get_stored_state_email_state.dart

@@ -0,0 +1,31 @@
+
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:jmap_dart_client/jmap/core/state.dart' as jmap;
+
+class GetStoredEmailStateSuccess extends UIState {
+
+  final jmap.State state;
+
+  GetStoredEmailStateSuccess(this.state);
+
+  @override
+  List<Object> get props => [state];
+}
+
+class NotFoundEmailState extends FeatureFailure {
+
+  NotFoundEmailState();
+
+  @override
+  List<Object> get props => [];
+}
+
+class GetStoredEmailStateFailure extends FeatureFailure {
+  final dynamic exception;
+
+  GetStoredEmailStateFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}

lib/features/email/domain/usecases/get_stored_email_state_interactor.dart

@@ -0,0 +1,25 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:dartz/dartz.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
+import 'package:tmail_ui_user/features/email/domain/state/get_stored_state_email_state.dart';
+
+class GetStoredEmailStateInteractor {
+  final EmailRepository _emailRepository;
+
+  GetStoredEmailStateInteractor(this._emailRepository);
+
+  Stream<Either<Failure, Success>> execute(AccountId accountId) async* {
+    try {
+      final state = await _emailRepository.getEmailState();
+      if (state != null) {
+        yield Right<Failure, Success>(GetStoredEmailStateSuccess(state));
+      } else {
+        yield Left<Failure, Success>(NotFoundEmailState());
+      }
+    } catch (e) {
+      yield Left<Failure, Success>(GetStoredEmailStateFailure(e));
+    }
+  }
+}

lib/features/email/presentation/email_bindings.dart

@@ -14,6 +14,7 @@ import 'package:tmail_ui_user/features/email/domain/usecases/download_attachment
 import 'package:tmail_ui_user/features/email/domain/usecases/download_attachments_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/export_attachment_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/get_email_content_interactor.dart';
+import 'package:tmail_ui_user/features/email/domain/usecases/get_stored_email_state_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/mark_as_email_read_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/move_to_mailbox_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/mark_as_star_email_interactor.dart';
@@ -139,6 +140,7 @@ class EmailBindings extends BaseBindings {
       Get.find<AuthenticationOIDCRepository>(),
       Get.find<AccountRepository>(),
     ));
+    Get.lazyPut(() => GetStoredEmailStateInteractor(Get.find<EmailRepository>()));
     IdentityInteractorsBindings().dependencies();
   }