import { cp, mkdir, readFile, rm, writeFile } from 'node:fs/promises';
import { createHash } from 'node:crypto';
import { resolve } from 'node:path';

const projectRoot = resolve(import.meta.dirname, '..');
const nextRoot = resolve(projectRoot, '.next');
const outputRoot = resolve(process.argv[2] || resolve(projectRoot, 'dist/makelore-player'));
const sourceHtml = resolve(nextRoot, 'server/app/makelore-player.html');
const sourceStatic = resolve(nextRoot, 'static');
const sourceAvatars = resolve(projectRoot, 'public/avatars');
const sourcePublic = resolve(projectRoot, 'public');

const html = await readFile(sourceHtml, 'utf8').catch(() => {
  throw new Error('Missing .next player output. Run `pnpm build` first.');
});

await rm(outputRoot, { recursive: true, force: true });
await mkdir(resolve(outputRoot, '_next'), { recursive: true });
await writeFile(resolve(outputRoot, 'index.html'), html, 'utf8');
await cp(sourceStatic, resolve(outputRoot, '_next/static'), { recursive: true });
await cp(sourceAvatars, resolve(outputRoot, 'avatars'), { recursive: true });
// Makelore serves this tree through a strict local allowlist. Production Stage
// and PBL chunks still contain root-relative public references, so omitting the
// producer-owned assets creates a player that builds successfully but 404s at
// runtime.
await cp(sourcePublic, resolve(outputRoot, 'public'), { recursive: true });
await writeFile(resolve(outputRoot, 'artifact.json'), JSON.stringify({
  schemaVersion: 1,
  entrypoint: 'index.html',
  source: 'OpenMAIC production Stage',
  publicDirectory: 'public',
  publicAssets: [
    'mailuo-logo.png',
    'openmaic-mark.png',
    'logo-horizontal.png',
    'avatars/',
    'logos/',
    'vendor/',
  ],
  htmlSha256: createHash('sha256').update(html).digest('hex'),
}, null, 2));

process.stdout.write(`Makelore player artifact: ${outputRoot}\n`);