TF-2680 Integrate get always read receipt with send email interactor

lib/features/composer/domain/usecases/send_email_interactor.dart

@@ -3,18 +3,24 @@ import 'package:core/presentation/state/success.dart';
 import 'package:dartz/dartz.dart';
 import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/core/session/session.dart';
+import 'package:tmail_ui_user/features/composer/domain/extensions/email_request_extension.dart';
 import 'package:tmail_ui_user/features/composer/domain/model/email_request.dart';
 import 'package:tmail_ui_user/features/composer/domain/state/send_email_state.dart';
 import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
 import 'package:tmail_ui_user/features/mailbox/domain/model/create_new_mailbox_request.dart';
 import 'package:tmail_ui_user/features/mailbox/domain/repository/mailbox_repository.dart';
 import 'package:tmail_ui_user/features/sending_queue/presentation/model/sending_email_action_type.dart';
+import 'package:tmail_ui_user/features/server_settings/domain/repository/server_settings_repository.dart';
 
 class SendEmailInteractor {
   final EmailRepository _emailRepository;
   final MailboxRepository _mailboxRepository;
+  final ServerSettingsRepository _serverSettingsRepository;
 
-  SendEmailInteractor(this._emailRepository, this._mailboxRepository);
+  SendEmailInteractor(
+    this._emailRepository,
+    this._mailboxRepository,
+    this._serverSettingsRepository);
 
   Stream<Either<Failure, Success>> execute(
     Session session,
@@ -36,10 +42,14 @@ class SendEmailInteractor {
       final currentMailboxState = listState.first;
       final currentEmailState = listState.last;
 
+      EmailRequest? updatedEmailRequest = await _getUpdatedEmailRequestIfAvailable(
+        accountId,
+        emailRequest);
+
       final result = await _emailRepository.sendEmail(
         session,
         accountId,
-        emailRequest,
+        updatedEmailRequest ?? emailRequest,
         mailboxRequest: mailboxRequest
       );
 
@@ -75,4 +85,22 @@ class SendEmailInteractor {
       ));
     }
   }
+
+  Future<EmailRequest?> _getUpdatedEmailRequestIfAvailable(
+    AccountId accountId, 
+    EmailRequest emailRequest
+  ) async {
+    bool alwaysReadReceipt = true;
+    EmailRequest? updatedEmailRequest;
+    try {
+      final serverSettings = await _serverSettingsRepository.getServerSettings(accountId);
+      alwaysReadReceipt = serverSettings.settings?.alwaysReadReceipts ?? true;
+    } catch (_) {
+      alwaysReadReceipt = true;
+    }
+    if (!alwaysReadReceipt) {
+      updatedEmailRequest = emailRequest.withUpdatedEmailHeaderMdn({});
+    }
+    return updatedEmailRequest;
+  }
 }