// Builds the static site into ./dist. No dependencies: `node build.mjs`.
import { mkdir, rm, writeFile, cp, readFile } from 'node:fs/promises';
import { createHash } from 'node:crypto';
import { join, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';
import { page, eyebrow, btn } from './src/layout.mjs';

const root = dirname(fileURLToPath(import.meta.url));
const out = join(root, 'dist');
const pages = ['home', 'about', 'portfolio', 'consulting', 'marketing', 'business-setup', 'contact', 'press'];

await rm(out, { recursive: true, force: true });
await mkdir(out, { recursive: true });
await cp(join(root, 'static'), out, { recursive: true });

// Fingerprint CSS/JS so a new deploy never reuses a stale cached copy.
const hashOf = async (f) => createHash('sha256').update(await readFile(join(root, 'static', f))).digest('hex').slice(0, 10);
const assetVersions = Object.fromEntries(await Promise.all(['styles.css', 'site.js', 'home.css', 'home.js', 'fonts.css'].map(async (f) => ['/assets/' + f, await hashOf('assets/' + f)])));
const fingerprint = (html) => Object.entries(assetVersions).reduce((h, [u, v]) => h.replaceAll(`"${u}"`, `"${u}?v=${v}"`), html);

const urls = [];
for (const name of pages) {
  const def = (await import(`./src/pages/${name}.mjs`)).default;
  const file = join(out, def.path, 'index.html');
  await mkdir(dirname(file), { recursive: true });
  await writeFile(file, fingerprint(page(def)));
  urls.push(def.path);
  console.log('built', def.path);
}

await writeFile(join(out, '404.html'), fingerprint(page({
  path: '/404/',
  title: 'Page Not Found | Dylan Mazzei',
  description: 'This page could not be found.',
  body: `<section class="page-hero"><div class="wrap-narrow stack center" style="align-items:center;text-align:center">${eyebrow('404')}<h1 class="h-display-lg">Page Not Found</h1><div class="btn-row">${btn('BACK TO HOME', '/')}</div></div></section>`,
})));

const today = new Date().toISOString().slice(0, 10);
await writeFile(join(out, 'sitemap.xml'), `<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
${urls.map((u) => `  <url><loc>https://dylanmazzei.com${u}</loc><lastmod>${today}</lastmod></url>`).join('\n')}
</urlset>
`);
await writeFile(join(out, 'robots.txt'), 'User-agent: *\nAllow: /\nSitemap: https://dylanmazzei.com/sitemap.xml\n');
console.log('done →', out);