ZacharyZhang-NYandClaude Opus 5.5
854c360ea1
/release.json adds the sum of every release asset's downloads; the update manifests are the apps' checks, not downloads. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
52 lines
1.9 KiB
TypeScript
52 lines
1.9 KiB
TypeScript
// Answers /release.json with the newest release and downloads.
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const REPO = "https://git.zacharyzhang.com/api/v1/repos/ZacharyZhang-NY/ElyOffice";
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const PAGE = 50;
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type Cached = RequestInit & { cf: { cacheTtl: number; cacheEverything: boolean } };
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type Asset = { name: string; download_count: number };
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type Release = { tag_name: string; assets: Asset[] };
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const init: Cached = {
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headers: { accept: "application/json", "user-agent": "ely-office-site" },
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cf: { cacheTtl: 300, cacheEverything: true },
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};
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async function read<T>(path: string): Promise<T> {
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const res = await fetch(`${REPO}${path}`, init);
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if (!res.ok) throw new Error(`Gitea answered ${res.status} for ${path}`);
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return (await res.json()) as T;
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}
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/** The newest release's version, without the v. */
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async function version(): Promise<string> {
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const { tag_name: tag } = await read<Release>("/releases/latest");
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if (!/^v\d+\.\d+\.\d+$/.test(tag)) throw new Error(`Gitea's latest tag is ${JSON.stringify(tag)}`);
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return tag.slice(1);
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}
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/** Downloads of every release; update manifests are checks, not downloads. */
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async function downloads(): Promise<number> {
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let total = 0;
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for (let page = 1; ; page++) {
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const releases = await read<Release[]>(`/releases?limit=${PAGE}&page=${page}`);
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for (const { assets } of releases) {
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for (const a of assets) {
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if (!Number.isInteger(a.download_count)) throw new Error(`${a.name} has no download count`);
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if (!a.name.endsWith(".json")) total += a.download_count;
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}
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}
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if (releases.length < PAGE) return total;
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}
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}
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export default {
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async fetch(): Promise<Response> {
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try {
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const [v, n] = await Promise.all([version(), downloads()]);
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return Response.json({ version: v, downloads: n }, { headers: { "cache-control": "public, max-age=300" } });
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} catch (e) {
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return new Response(String(e), { status: 502 });
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}
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},
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};
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