전략편집기 수정

frontend/src/components/TradeSignalSnackbar.tsx

@@ -45,7 +45,6 @@ export const TradeSignalSnackbar: React.FC<Props> = ({
     toastNotifications,
     dismissToast,
     dismissToasts,
-    dismissAllToasts,
     openDetail,
   } = useTradeNotification();
 
@@ -94,17 +93,23 @@ export const TradeSignalSnackbar: React.FC<Props> = ({
   }, [totalPages]);
 
   const dismissAll = useCallback(() => {
-    dismissAllToasts();
+    if (toastNotifications.length === 0) return;
+    dismissToasts(toastNotifications.map(n => n.id));
     setPageIndex(0);
     positionsRef.current = {};
-  }, [dismissAllToasts]);
+  }, [dismissToasts, toastNotifications]);
 
   const dismissCurrentPage = useCallback(() => {
-    dismissToasts(pageItems.map(i => i.id));
+    const ids = pageItems.map(i => i.id);
+    if (ids.length === 0) return;
+    dismissToasts(ids);
     positionsRef.current = Object.fromEntries(
-      Object.entries(positionsRef.current).filter(([id]) => !pageItems.some(p => p.id === id)),
+      Object.entries(positionsRef.current).filter(([id]) => !ids.includes(id)),
     );
-  }, [dismissToasts, pageItems]);
+    const remaining = toastNotifications.length - ids.length;
+    const newTotalPages = Math.max(1, Math.ceil(remaining / pageSize));
+    setPageIndex(p => Math.min(p, newTotalPages - 1));
+  }, [dismissToasts, pageItems, toastNotifications.length, pageSize]);
 
   const handleDragStart = useCallback((e: React.PointerEvent, key: string) => {
     if (e.button !== 0) return;
@@ -221,17 +226,19 @@ export const TradeSignalSnackbar: React.FC<Props> = ({
             type="button"
             className="tsn-dismiss-page"
             onClick={dismissCurrentPage}
-            title={`현재 화면 알림 ${pageItems.length}건 닫기`}
+            disabled={pageItems.length === 0}
+            title={`현재 화면에 보이는 알림 ${pageItems.length}건 닫기`}
           >
-            알림창닫기 ({pageItems.length})
+            알림창 닫기 ({pageItems.length})
           </button>
           <button
             type="button"
             className="tsn-dismiss-all"
             onClick={dismissAll}
-            title={`대기 중인 알림 ${toastNotifications.length}건 전체 닫기`}
+            disabled={toastNotifications.length === 0}
+            title={`대기 중인 알림 ${toastNotifications.length}건 전체 닫기 (모든 페이지)`}
           >
-            전체닫기 ({toastNotifications.length})
+            전체 닫기 ({toastNotifications.length})
           </button>
         </div>
         {showSlideNav && (