alpha release

update v0.8.0

src/lib/twtxtCache.ts

@@ -0,0 +1,48 @@
+import fsp from 'node:fs/promises';
+import path from 'node:path';
+
+import { NodeCache } from '@cacheable/node-cache';
+import Debug from 'debug';
+
+import { parseTwtxt } from 'twtxt-lib';
+import { TwtKprConfiguration } from '../types.js';
+
+/**
+ *
+ * @param param0
+ * @returns
+ */
+export default function twtxtCache({
+	publicDirectory,
+	twtxtFilename,
+}: Pick<TwtKprConfiguration, 'publicDirectory' | 'twtxtFilename'>) {
+	let isLoaded = false;
+
+	const debug = Debug('twtkpr:twtxtCache');
+
+	const cache = new NodeCache();
+
+	const reloadCache = async () => {
+		const fileText = await fsp.readFile(
+			path.join(publicDirectory, twtxtFilename),
+			'utf8'
+		);
+
+		const parsedFile = parseTwtxt(fileText);
+		Object.keys(parsedFile).forEach((key) => {
+			cache.set(key, parsedFile[key as keyof typeof parsedFile]); // 10 seconds
+		});
+
+		cache.set('source', fileText);
+		debug(`cache ${isLoaded ? 're' : ''}loaded`);
+
+		isLoaded = true;
+	};
+
+	reloadCache();
+
+	return {
+		cache,
+		reloadCache,
+	};
+}