sepehr
8d95f34fcc
- Add debounced state updates for title and content (500ms delay) - Immediate UI updates with delayed history saving - Prevent one-letter-per-undo issue - Add cleanup for debounce timers on unmount
80 lines
2.6 KiB
JavaScript
80 lines
2.6 KiB
JavaScript
// src/middleware/cache/index.ts
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var defaultCacheableStatusCodes = [200];
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var shouldSkipCache = (res) => {
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const vary = res.headers.get("Vary");
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return vary && vary.includes("*");
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};
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var cache = (options) => {
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if (!globalThis.caches) {
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console.log("Cache Middleware is not enabled because caches is not defined.");
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return async (_c, next) => await next();
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}
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if (options.wait === void 0) {
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options.wait = false;
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}
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const cacheControlDirectives = options.cacheControl?.split(",").map((directive) => directive.toLowerCase());
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const varyDirectives = Array.isArray(options.vary) ? options.vary : options.vary?.split(",").map((directive) => directive.trim());
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if (options.vary?.includes("*")) {
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throw new Error(
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'Middleware vary configuration cannot include "*", as it disallows effective caching.'
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);
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}
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const cacheableStatusCodes = new Set(
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options.cacheableStatusCodes ?? defaultCacheableStatusCodes
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);
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const addHeader = (c) => {
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if (cacheControlDirectives) {
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const existingDirectives = c.res.headers.get("Cache-Control")?.split(",").map((d) => d.trim().split("=", 1)[0]) ?? [];
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for (const directive of cacheControlDirectives) {
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let [name, value] = directive.trim().split("=", 2);
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name = name.toLowerCase();
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if (!existingDirectives.includes(name)) {
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c.header("Cache-Control", `${name}${value ? `=${value}` : ""}`, { append: true });
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}
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}
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}
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if (varyDirectives) {
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const existingDirectives = c.res.headers.get("Vary")?.split(",").map((d) => d.trim()) ?? [];
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const vary = Array.from(
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new Set(
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[...existingDirectives, ...varyDirectives].map((directive) => directive.toLowerCase())
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)
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).sort();
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if (vary.includes("*")) {
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c.header("Vary", "*");
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} else {
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c.header("Vary", vary.join(", "));
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}
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}
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};
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return async function cache2(c, next) {
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let key = c.req.url;
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if (options.keyGenerator) {
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key = await options.keyGenerator(c);
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}
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const cacheName = typeof options.cacheName === "function" ? await options.cacheName(c) : options.cacheName;
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const cache3 = await caches.open(cacheName);
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const response = await cache3.match(key);
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if (response) {
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return new Response(response.body, response);
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}
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await next();
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if (!cacheableStatusCodes.has(c.res.status)) {
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return;
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}
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addHeader(c);
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if (shouldSkipCache(c.res)) {
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return;
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}
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const res = c.res.clone();
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if (options.wait) {
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await cache3.put(key, res);
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} else {
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c.executionCtx.waitUntil(cache3.put(key, res));
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}
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};
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};
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export {
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cache
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};
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