Enhance WAF service mode update with listener synchronization

- Implement concurrent listener mode updates for WAF services
- Add client retrieval and listing of listeners by gateway name
- Return updated WAF service metadata after mode modification
- Improve error handling for client and listener operations

internal/service/waf.go

@@ -280,7 +280,29 @@ func (s *wafService) UpdateMode(ctx context.Context, req *UpdateModeReq) (*WafSe
 			return nil, fmt.Errorf("failed to update WAF service mode: %v", err)
 		}
 	}
-	return nil, nil
+	// Update mode for each listener
+	client := s.clusterClientManager.GetClient(req.RegionCode)
+	if client == nil {
+		return nil, fmt.Errorf("failed to get cluster client for region %s", req.RegionCode)
+	}
+	listenerList, err := client.WafV1alpha1().Services(req.Namespace).List(ctx, metav1.ListOptions{LabelSelector: fmt.Sprintf("apigateway_name=%s", req.GatewayName)})
+	if err != nil {
+		return nil, fmt.Errorf("failed to get listener list: %v", err)
+	}
+	for _, listener := range listenerList.Items {
+		listener := listener // Create new variable for goroutine
+		go func() {
+			log.Info().Msgf("update WAF service mode: %v", listener.Name)
+			_, err := client.WafV1alpha1().Services(req.Namespace).Update(ctx, &listener, metav1.UpdateOptions{})
+			if err != nil {
+				log.Error().Msgf("failed to update WAF service mode: %v", err)
+			}
+		}()
+	}
+	return &WafService{
+		GatewayName: req.GatewayName,
+		Mode:        string(req.Mode),
+	}, nil
 }
 
 func (s *wafService) GetRuleCategories(ctx context.Context) ([]WafRuleCategory, error) {