TF-4236 Fix guard delete UI when no handler is provided.

lib/features/email/data/network/email_api.dart

@@ -991,9 +991,7 @@ class EmailAPI with HandleSetErrorMixin, MailAPIMixin {
     final isUpdated = emailIdsUpdated.every(ids.contains);
 
     if (emailIdsUpdated.isEmpty || !isUpdated) {
-      for (var id in emailIds) {
-        throw parseErrorForSetResponse(response, id.id);
-      }
+      throw parseErrorForSetResponse(response, emailIds.first.id);
     }
   }
 

lib/features/email/domain/usecases/labels/remove_a_label_from_a_thread_interactor.dart

@@ -6,7 +6,7 @@ import 'package:jmap_dart_client/jmap/core/session/session.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:jmap_dart_client/jmap/mail/email/keyword_identifier.dart';
 import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
-import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_an_thread_state.dart';
+import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_a_thread_state.dart';
 
 class RemoveALabelFromAThreadInteractor {
   final EmailRepository _emailRepository;

lib/features/email/presentation/widgets/email_subject_widget.dart

@@ -103,11 +103,15 @@ class _EmailSubjectWidgetState extends State<EmailSubjectWidget> {
   }
 
   List<Widget> _buildLabelWidgets() {
+    final canRemove = widget.onDeleteLabelAction != null;
     return _currentLabels
-            ?.map((label) => LabelWidget.create(
+            ?.map((label) => LabelWidget(
                   label: label,
-                  removeLabelAction: _buildRemoveLabelWidget(label),
-                  padding: const EdgeInsetsDirectional.only(start: 4, end: 2),
+                  actionWidget:
+                      canRemove ? _buildRemoveLabelWidget(label) : null,
+                  padding: canRemove
+                      ? const EdgeInsetsDirectional.only(start: 4, end: 2)
+                      : null,
                 ))
             .toList() ??
         const [];
@@ -125,13 +129,12 @@ class _EmailSubjectWidgetState extends State<EmailSubjectWidget> {
   }
 
   void _onDeleteLabelAction(Label labelRemoved) {
-    if (mounted) {
-      setState(() {
-        _currentLabels = _currentLabels
-            ?.where((label) => label.id != labelRemoved.id)
-            .toList();
-      });
-      widget.onDeleteLabelAction?.call(labelRemoved);
-    }
+    if (!mounted || widget.onDeleteLabelAction == null) return;
+    setState(() {
+      _currentLabels = _currentLabels
+          ?.where((label) => label.id != labelRemoved.id)
+          .toList();
+    });
+    widget.onDeleteLabelAction!.call(labelRemoved);
   }
 }

lib/features/thread_detail/presentation/extension/labels/remove_label_from_thread_extension.dart

@@ -2,7 +2,7 @@ import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/core/session/session.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:labels/labels.dart';
-import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_an_thread_state.dart';
+import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_a_thread_state.dart';
 import 'package:tmail_ui_user/features/home/data/exceptions/session_exceptions.dart';
 import 'package:tmail_ui_user/features/labels/domain/exceptions/label_exceptions.dart';
 import 'package:tmail_ui_user/features/thread_detail/presentation/extension/labels/add_label_to_thread_extension.dart';

lib/features/thread_detail/presentation/thread_detail_controller.dart

@@ -17,7 +17,7 @@ import 'package:model/extensions/keyword_identifier_extension.dart';
 import 'package:model/mailbox/presentation_mailbox.dart';
 import 'package:tmail_ui_user/features/base/base_controller.dart';
 import 'package:tmail_ui_user/features/email/domain/state/add_a_label_to_an_thread_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_an_thread_state.dart';
+import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_a_thread_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_read_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/print_email_state.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/add_a_label_to_a_thread_interactor.dart';

lib/l10n/intl_messages.arb

@@ -5412,7 +5412,7 @@
       "labelName": {}
     }
   },
-  "removeLabelFromThreadFailureMessage": "Cannot remove all emails from thread to the \"{labelName}\" label",
+  "removeLabelFromThreadFailureMessage": "Cannot remove all emails in thread from the \"{labelName}\" label",
   "@removeLabelFromThreadFailureMessage": {
     "type": "text",
     "placeholders_order": [

lib/main/localizations/app_localizations.dart

@@ -5735,7 +5735,7 @@ class AppLocalizations {
 
   String removeLabelFromThreadFailureMessage(String labelName) {
     return Intl.message(
-      'Cannot remove all emails from thread to the "$labelName" label',
+      'Cannot remove all emails in thread from the "$labelName" label',
       name: 'removeLabelFromThreadFailureMessage',
       args: [labelName],
     );

lib/main/utils/toast_manager.dart

@@ -25,7 +25,7 @@ import 'package:tmail_ui_user/features/email/domain/model/move_action.dart';
 import 'package:tmail_ui_user/features/email/domain/state/add_a_label_to_an_email_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/add_a_label_to_an_thread_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/calendar_event_reply_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_an_thread_state.dart';
+import 'package:tmail_ui_user/features/email/domain/state/labels/remove_a_label_from_a_thread_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_star_state.dart';
 import 'package:tmail_ui_user/features/download/domain/state/parse_email_by_blob_id_state.dart';
 import 'package:tmail_ui_user/features/download/domain/state/preview_email_from_eml_file_state.dart';