알림 목록 정렬 기능 추가

frontend/src/components/TradeNotificationListPage.tsx

@@ -23,9 +23,12 @@ import TradeNotificationGridLayoutPicker from './tradeNotification/TradeNotifica
 import {
   loadTradeNotificationGridPreset,
   loadTradeNotificationListLayout,
+  loadTradeNotificationListSort,
   saveTradeNotificationGridPreset,
   saveTradeNotificationListLayout,
+  saveTradeNotificationListSort,
   type TradeNotificationListLayout,
+  type TradeNotificationListSort,
 } from '../utils/tradeNotificationListLayout';
 import {
   getTradeNotificationGridPreset,
@@ -74,6 +77,24 @@ function fillBothSides(
   setFillSell({ market, price, side: 'sell', seq: seq + 1 });
 }
 
+function sortNotifications(
+  items: TradeNotificationItem[],
+  sort: TradeNotificationListSort,
+): TradeNotificationItem[] {
+  const arr = [...items];
+  if (sort === 'market') {
+    return arr.sort((a, b) => {
+      const byMarket = a.market.localeCompare(b.market, 'ko');
+      if (byMarket !== 0) return byMarket;
+      return b.receivedAt - a.receivedAt;
+    });
+  }
+  if (sort === 'oldest') {
+    return arr.sort((a, b) => a.receivedAt - b.receivedAt);
+  }
+  return arr.sort((a, b) => b.receivedAt - a.receivedAt);
+}
+
 export const TradeNotificationListPage: React.FC<Props> = ({
   theme,
   onGoToChart,
@@ -96,6 +117,9 @@ export const TradeNotificationListPage: React.FC<Props> = ({
   } = useTradeNotification();
 
   const [filter, setFilter] = useState<'all' | 'unread'>('all');
+  const [listSort, setListSort] = useState<TradeNotificationListSort>(
+    () => loadTradeNotificationListSort(),
+  );
   const [listLayout, setListLayout] = useState<TradeNotificationListLayout>(
     () => loadTradeNotificationListLayout(),
   );
@@ -226,6 +250,16 @@ export const TradeNotificationListPage: React.FC<Props> = ({
     ? allNotifications.filter(n => !n.isRead)
     : allNotifications;
 
+  const sorted = useMemo(
+    () => sortNotifications(filtered, listSort),
+    [filtered, listSort],
+  );
+
+  const handleListSortChange = useCallback((sort: TradeNotificationListSort) => {
+    setListSort(sort);
+    saveTradeNotificationListSort(sort);
+  }, []);
+
   const handleListLayoutChange = useCallback((layout: TradeNotificationListLayout) => {
     setListLayout(layout);
     saveTradeNotificationListLayout(layout);
@@ -303,6 +337,29 @@ export const TradeNotificationListPage: React.FC<Props> = ({
                   모두 읽음
                 </button>
               )}
+              <div className="tnl-filter tnl-sort-toggle" role="group" aria-label="목록 정렬">
+                <button
+                  type="button"
+                  className={listSort === 'market' ? 'tnl-filter-btn--active' : ''}
+                  onClick={() => handleListSortChange('market')}
+                >
+                  종목순
+                </button>
+                <button
+                  type="button"
+                  className={listSort === 'newest' ? 'tnl-filter-btn--active' : ''}
+                  onClick={() => handleListSortChange('newest')}
+                >
+                  최신시간순
+                </button>
+                <button
+                  type="button"
+                  className={listSort === 'oldest' ? 'tnl-filter-btn--active' : ''}
+                  onClick={() => handleListSortChange('oldest')}
+                >
+                  이전시간순
+                </button>
+              </div>
               <div className="tnl-toolbar-end">
                 <div className="tnl-layout-toggle vtd-view-toggle" role="group" aria-label="목록 표시 방식">
                   <button
@@ -361,7 +418,7 @@ export const TradeNotificationListPage: React.FC<Props> = ({
           </div>
 
           <div className={['tnl-list-wrap', !isListView ? 'tnl-list-wrap--grid' : ''].filter(Boolean).join(' ')}>
-            {filtered.length === 0 ? (
+            {sorted.length === 0 ? (
               <div className="tnl-empty">표시할 알림이 없습니다.</div>
             ) : (
               <ul
@@ -372,7 +429,7 @@ export const TradeNotificationListPage: React.FC<Props> = ({
                 ].filter(Boolean).join(' ')}
                 style={!isListView ? { gridTemplateColumns: `repeat(${gridCols}, minmax(0, 1fr))` } : undefined}
               >
-                {filtered.map(item => (
+                {sorted.map(item => (
                   <TradeNotificationListRow
                     key={item.id}
                     item={item}