import { access, readFile } from 'node:fs/promises';
import { resolve } from 'node:path';

const key = process.env.SITE_KEY;
if (!key) throw new Error('SITE_KEY is required.');
const root = resolve(`dist/${key}`);
const required = ['index.html', '404.html', 'robots.txt', 'sitemap.xml'];
if (key === 'www') required.push('about/index.html', 'services/index.html', 'contact/index.html');
for (const file of required) await access(resolve(root, file));

const pages = await Promise.all(required.filter((file) => file.endsWith('.html')).map(async (file) => ({ file, html: await readFile(resolve(root, file), 'utf8') })));
for (const { file, html } of pages) {
  if (html.includes('{{') || html.includes('{%')) throw new Error(`${file} contains an unresolved template placeholder.`);
  if (!/<title>[^<]+<\/title>/.test(html)) throw new Error(`${file} is missing a title.`);
  for (const match of html.matchAll(/(?:src|href)="(\/images\/[^"?#]+)"/g)) await access(resolve(root, `.${match[1]}`));
}
console.log(`Verified ${key}: ${required.join(', ')}`);