알림목록 지표없음 문제 수정

frontend/src/utils/resolveNotificationStrategy.ts

@@ -0,0 +1,76 @@
+/**
+ * 매매 시그널 알림 — strategyId·전략명으로 StrategyDto 해석
+ * (서버 DB와 알림 이력의 strategyId 불일치 시 전략명 fallback)
+ */
+import {
+  isStrategyMissingOnServer,
+  loadStrategies,
+  loadStrategy,
+  type StrategyDto,
+} from './backendApi';
+import { reconcileStrategyMissingWithValidIds } from './strategyMissingCache';
+import { coerceFiniteNumber } from './safeFormat';
+
+let strategiesCache: StrategyDto[] | null = null;
+let strategiesCacheAt = 0;
+const CACHE_MS = 30_000;
+
+export function normalizeStrategyId(id: unknown): number | null {
+  const n = coerceFiniteNumber(id);
+  return n != null && n > 0 ? Math.trunc(n) : null;
+}
+
+async function getStrategiesList(force = false): Promise<StrategyDto[]> {
+  const now = Date.now();
+  if (!force && strategiesCache && now - strategiesCacheAt < CACHE_MS) {
+    return strategiesCache;
+  }
+  const list = await loadStrategies();
+  strategiesCache = list ?? [];
+  strategiesCacheAt = now;
+  reconcileStrategyMissingWithValidIds(
+    strategiesCache.map(s => s.id).filter((id): id is number => id != null && id > 0),
+  );
+  return strategiesCache;
+}
+
+export interface ResolvedNotificationStrategy {
+  strategy: StrategyDto | undefined;
+  /** live-conditions·차트에 사용할 유효 strategyId */
+  strategyId: number | null;
+}
+
+export async function resolveNotificationStrategy(
+  strategyId: unknown,
+  strategyName?: string | null,
+  prefetched?: StrategyDto[],
+): Promise<ResolvedNotificationStrategy> {
+  const normalizedId = normalizeStrategyId(strategyId);
+  const list = prefetched ?? await getStrategiesList();
+
+  if (normalizedId != null && !isStrategyMissingOnServer(normalizedId)) {
+    const fromList = list.find(s => s.id === normalizedId);
+    if (fromList) {
+      return { strategy: fromList, strategyId: normalizedId };
+    }
+    const loaded = await loadStrategy(normalizedId);
+    if (loaded) {
+      return { strategy: loaded, strategyId: normalizedId };
+    }
+  }
+
+  const name = strategyName?.trim();
+  if (name) {
+    const byName = list.find(s => s.name?.trim() === name);
+    if (byName?.id != null && byName.id > 0) {
+      return { strategy: byName, strategyId: byName.id };
+    }
+  }
+
+  return { strategy: undefined, strategyId: normalizedId };
+}
+
+/** 알림 목록 진입 시 전략 목록 선로드 */
+export async function prefetchNotificationStrategies(): Promise<StrategyDto[]> {
+  return getStrategiesList(true);
+}