mobile download

frontend/src/utils/marketStorage.ts

@@ -1,50 +1,36 @@
 /**
  * 관심종목(즐겨찾기) / 보유종목 관리
- * - DB(gc_watchlist)가 기준 저장소
- * - localStorage(gc_favorites)는 오프라인 미러·UI 동기화용
+ * - DB(gc_watchlist / gc_holdings)가 기준 저장소
+ * - 메모리 캐시만 사용 (localStorage 미사용)
  */
 
 import { addWatchlistItem, removeWatchlistItem } from './backendApi';
 
-const FAV_KEY         = 'gc_favorites';
-const LEGACY_FAV_KEY  = 'upbit_market_favorites';
-const HOLD_KEY        = 'gc_holdings';
-
 /** 관심종목 변경 시 MarketSearchPanel·App 등이 동기화하도록 발행 */
 export const FAVORITES_CHANGED_EVENT = 'gc-favorites-changed';
 
-// ── 즐겨찾기 (관심종목) ─────────────────────────────────────────────────────
+let favoritesCache: string[] | null = null;
+let holdingsCache: string[] | null = null;
 
-/** 구버전 MarketSearchPanel 키 → gc_favorites 로 1회 마이그레이션 */
-function migrateLegacyFavorites(): void {
-  try {
-    const raw = localStorage.getItem(FAV_KEY);
-    if (raw) {
-      const current = JSON.parse(raw) as string[];
-      if (Array.isArray(current) && current.length > 0) return;
-    }
-    const legacy = localStorage.getItem(LEGACY_FAV_KEY);
-    if (!legacy) return;
-    const parsed = JSON.parse(legacy) as string[];
-    if (Array.isArray(parsed) && parsed.length > 0) {
-      saveFavorites(parsed, false);
-    }
-  } catch { /* ignore */ }
+/** DB 로드 후 App·워크스페이스 훅에서 호출 */
+export function initFavoritesFromDb(symbols: string[]): void {
+  favoritesCache = [...symbols];
+  window.dispatchEvent(new CustomEvent(FAVORITES_CHANGED_EVENT, { detail: favoritesCache }));
+}
+
+export function initHoldingsFromDb(symbols: string[]): void {
+  holdingsCache = [...symbols];
 }
 
 export function getFavorites(): string[] {
-  migrateLegacyFavorites();
-  try { return JSON.parse(localStorage.getItem(FAV_KEY) ?? '[]'); }
-  catch { return []; }
+  return favoritesCache ?? [];
 }
 
 export function saveFavorites(markets: string[], notify = true): void {
-  try {
-    localStorage.setItem(FAV_KEY, JSON.stringify(markets));
-    if (notify) {
-      window.dispatchEvent(new CustomEvent(FAVORITES_CHANGED_EVENT, { detail: markets }));
-    }
-  } catch { /* ignore */ }
+  favoritesCache = [...markets];
+  if (notify) {
+    window.dispatchEvent(new CustomEvent(FAVORITES_CHANGED_EVENT, { detail: markets }));
+  }
 }
 
 /**
@@ -76,15 +62,12 @@ export function isFavorite(market: string): boolean {
   return getFavorites().includes(market);
 }
 
-// ── 보유종목 ─────────────────────────────────────────────────────────────────
-
 export function getHoldings(): string[] {
-  try { return JSON.parse(localStorage.getItem(HOLD_KEY) ?? '[]'); }
-  catch { return []; }
+  return holdingsCache ?? [];
 }
 
 export function saveHoldings(markets: string[]): void {
-  try { localStorage.setItem(HOLD_KEY, JSON.stringify(markets)); } catch { /* ignore */ }
+  holdingsCache = [...markets];
 }
 
 /** 추가 → 변경 후 전체 목록 반환 (중복 무시) */