Refactor: continues to rewrite to TS

Build/lib/get-gorhill-publicsuffix.ts

@@ -0,0 +1,33 @@
+import { toASCII } from 'punycode';
+import path from 'path';
+import { traceAsync } from './trace-runner';
+import type { PublicSuffixList } from 'gorhill-publicsuffixlist';
+
+const publicSuffixPath = path.resolve(__dirname, '../../node_modules/.cache/public_suffix_list_dat.txt');
+
+const getGorhillPublicSuffix = () => traceAsync('create gorhill public suffix instance', async () => {
+  const customFetch = async (url: string | URL) => Bun.file(url);
+
+  const publicSuffixFile = Bun.file(publicSuffixPath);
+
+  const [publicSuffixListDat, { default: gorhill }] = await Promise.all([
+    await publicSuffixFile.exists()
+      ? publicSuffixFile.text()
+      : fetch('https://publicsuffix.org/list/public_suffix_list.dat').then(r => {
+        console.log('public_suffix_list.dat not found, fetch directly from remote.');
+        return r.text();
+      }),
+    import('gorhill-publicsuffixlist')
+  ]);
+
+  gorhill.parse(publicSuffixListDat, toASCII);
+  await gorhill.enableWASM({ customFetch });
+
+  return gorhill;
+});
+
+let gorhillPublicSuffixPromise: Promise<PublicSuffixList> | null = null;
+export const getGorhillPublicSuffixPromise = () => {
+  gorhillPublicSuffixPromise ||= getGorhillPublicSuffix();
+  return gorhillPublicSuffixPromise;
+};