bug修改

store/playUrlCache.ts

@@ -0,0 +1,43 @@
+import { create } from 'zustand';
+import type { PlayUrlResponse } from '../services/types';
+
+interface CacheEntry {
+  playData: PlayUrlResponse;
+  mpdUri?: string;
+  ts: number;
+}
+
+interface PlayUrlCacheStore {
+  // 不通过 set 触发渲染（只是用 store 持有 Map）
+  cache: Map<string, CacheEntry>;
+  get: (bvid: string, qn: number) => CacheEntry | undefined;
+  set: (bvid: string, qn: number, entry: Omit<CacheEntry, 'ts'>) => void;
+}
+
+const TTL_MS = 5 * 60 * 1000;
+const MAX_ENTRIES = 30;
+
+const makeKey = (bvid: string, qn: number) => `${bvid}_${qn}`;
+
+export const usePlayUrlCache = create<PlayUrlCacheStore>((_set, getState) => ({
+  cache: new Map(),
+  get: (bvid, qn) => {
+    const map = getState().cache;
+    const entry = map.get(makeKey(bvid, qn));
+    if (!entry) return undefined;
+    if (Date.now() - entry.ts > TTL_MS) {
+      map.delete(makeKey(bvid, qn));
+      return undefined;
+    }
+    return entry;
+  },
+  set: (bvid, qn, entry) => {
+    const map = getState().cache;
+    map.set(makeKey(bvid, qn), { ...entry, ts: Date.now() });
+    // 简单 LRU：超过容量删最早
+    if (map.size > MAX_ENTRIES) {
+      const oldestKey = map.keys().next().value;
+      if (oldestKey) map.delete(oldestKey);
+    }
+  },
+}));