TF-750 Create AutoCompleteBindings

lib/features/composer/data/repository/auto_complete_repository_impl.dart

@@ -1,5 +1,6 @@
 
 import 'package:contact/data/datasource/auto_complete_datasource.dart';
+import 'package:core/utils/app_logger.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
 import 'package:model/autocomplete/auto_complete_pattern.dart';
 import 'package:tmail_ui_user/features/composer/domain/repository/auto_complete_repository.dart';
@@ -12,14 +13,19 @@ class AutoCompleteRepositoryImpl extends AutoCompleteRepository {
 
   @override
   Future<List<EmailAddress>> getAutoComplete(AutoCompletePattern autoCompletePattern) async {
-    List<EmailAddress> listEmailAddress = <EmailAddress>[];
-
-   await Future.wait(autoCompleteDataSources.map(
+    if (autoCompleteDataSources.isEmpty) {
+      log('AutoCompleteRepositoryImpl::getAutoComplete(): autoCompleteDataSources IS NULL');
+      return [];
+    }
+   final listEmailAddress = await Future
+       .wait(autoCompleteDataSources.map(
            (datasource) => datasource.getAutoComplete(autoCompletePattern)))
        .then((newListResult) {
+          List<EmailAddress> listEmailAddress = <EmailAddress>[];
           for (var listEmails in newListResult) {
             listEmailAddress.addAll(listEmails);
           }
+          return listEmailAddress;
         });
 
     return listEmailAddress;