TF-3416 Implement preview EML attachment

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

@@ -0,0 +1,24 @@
+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/email/domain/repository/email_repository.dart';
+import 'package:tmail_ui_user/features/email/domain/state/get_preview_email_content_shared_state.dart';
+
+class GetPreviewEmailEMLContentSharedInteractor {
+  final EmailRepository _emailRepository;
+
+  const GetPreviewEmailEMLContentSharedInteractor(this._emailRepository);
+
+  Stream<Either<Failure, Success>> execute(String keyStored) async* {
+    try {
+      yield Right<Failure, Success>(GettingPreviewEmailEMLContentShared());
+
+      final previewEMLContent = await _emailRepository
+        .getPreviewEmailEMLContentShared(keyStored);
+
+      yield Right<Failure, Success>(GetPreviewEmailEMLContentSharedSuccess(previewEMLContent));
+    } catch (e) {
+      yield Left<Failure, Success>(GetPreviewEmailEMLContentSharedFailure(e));
+    }
+  }
+}

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

@@ -20,7 +20,10 @@ class ParseEmailByBlobIdInteractor {
         {blobId},
       );
 
-      yield Right<Failure, Success>(ParseEmailByBlobIdSuccess(emailParsed.first));
+      yield Right<Failure, Success>(ParseEmailByBlobIdSuccess(
+        emailParsed.first,
+        blobId,
+      ));
     } catch (e) {
       yield Left<Failure, Success>(ParseEmailByBlobIdFailure(e));
     }

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

@@ -0,0 +1,31 @@
+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/email/domain/model/preview_email_eml_request.dart';
+import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
+import 'package:tmail_ui_user/features/email/domain/state/preview_email_from_eml_file_state.dart';
+
+class PreviewEmailFromEmlFileInteractor {
+  final EmailRepository _emailRepository;
+
+  const PreviewEmailFromEmlFileInteractor(this._emailRepository);
+
+  Stream<Either<Failure, Success>> execute(
+    PreviewEmailEMLRequest previewEmailEMLRequest,
+  ) async* {
+    try {
+      yield Right<Failure, Success>(PreviewingEmailFromEmlFile());
+
+      final previewEMLContent = await _emailRepository
+        .generatePreviewEmailEMLContent(previewEmailEMLRequest);
+
+      final keyStored = previewEmailEMLRequest.keyStored;
+
+      await _emailRepository.sharePreviewEmailEMLContent(keyStored, previewEMLContent);
+
+      yield Right<Failure, Success>(PreviewEmailFromEmlFileSuccess(keyStored));
+    } catch (e) {
+      yield Left<Failure, Success>(PreviewEmailFromEmlFileFailure(e));
+    }
+  }
+}