46 lines
1.1 KiB
TypeScript
46 lines
1.1 KiB
TypeScript
const CACHE_NAME = "video-process-h264-v1";
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export async function openCachedVideoResponse(
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url: string,
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signal: AbortSignal,
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): Promise<{ response: Response; cacheState: "hit" | "miss" }> {
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if (typeof caches !== "undefined") {
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const cache = await caches.open(CACHE_NAME);
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const cached = await cache.match(url);
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if (cached) {
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return { response: cached, cacheState: "hit" };
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}
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}
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const response = await fetch(url, {
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signal,
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cache: "no-store",
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});
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if (!response.ok) {
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throw new Error(`请求失败：${response.status} ${response.statusText}`);
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}
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if (typeof caches !== "undefined") {
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const cache = await caches.open(CACHE_NAME);
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cache.put(url, response.clone()).catch(() => {
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// Cache Storage is best-effort.
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});
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}
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return { response, cacheState: "miss" };
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}
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export async function clearCachedVideoResponse(url: string): Promise<void> {
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if (typeof caches === "undefined") {
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return;
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}
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try {
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const cache = await caches.open(CACHE_NAME);
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await cache.delete(url);
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} catch {
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// Cache Storage is best-effort.
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}
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}
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