// Assembles the Theseus add-on folder: manifest + entry from theseus/, the
// shared core/ and ui/, and the one pure-JS dependency (yaml, vendored). The pty module
// is left out on purpose (12 MB of native code per platform); without it the
// login flow opens s3d in its own console window instead.
//
//   node scripts/build-theseus-addon.mjs [outDir]   default: dist/theseus-addon/pithos

import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const ROOT = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');
const out = path.resolve(process.argv[2] || path.join(ROOT, 'dist', 'theseus-addon', 'pithos'));

fs.rmSync(out, { recursive: true, force: true });
fs.mkdirSync(out, { recursive: true });

const copy = (from, to) => fs.cpSync(path.join(ROOT, from), path.join(out, to), { recursive: true });
copy('theseus/addon.json', 'addon.json');
copy('theseus/index.js', 'index.js');
copy('core', 'core');
copy('ui', 'ui');
// core/ is ESM; the add-on root stays CommonJS because the host require()s
// index.js. Both are pinned so a parent package.json cannot flip either.
fs.writeFileSync(path.join(out, 'package.json'), JSON.stringify({ type: 'commonjs', private: true }, null, 2) + '\n');
fs.writeFileSync(path.join(out, 'core', 'package.json'), JSON.stringify({ type: 'module' }, null, 2) + '\n');

// Vendored as vendor/yaml/lib, not node_modules/yaml/dist: Theseus git-ignores
// every node_modules/ and dist/ folder, so a clean-worktree release build
// would ship the add-on without it. yaml's dist only requires its own files
// and Node built-ins, so the folder moves as-is.
const yamlPkg = path.join(ROOT, 'node_modules', 'yaml');
fs.cpSync(path.join(yamlPkg, 'dist'), path.join(out, 'vendor', 'yaml', 'lib'), { recursive: true, filter: (f) => !f.endsWith('.d.ts') });
fs.copyFileSync(path.join(yamlPkg, 'LICENSE'), path.join(out, 'vendor', 'yaml', 'LICENSE'));
const yamlVersion = JSON.parse(fs.readFileSync(path.join(yamlPkg, 'package.json'), 'utf8')).version;
fs.writeFileSync(path.join(out, 'vendor', 'yaml', 'package.json'), JSON.stringify({ name: 'yaml', version: yamlVersion, type: 'commonjs', private: true }, null, 2) + '\n');
const configJs = path.join(out, 'core', 'config.js');
const src = fs.readFileSync(configJs, 'utf8');
const rewritten = src.replace("from 'yaml';", "from '../vendor/yaml/lib/index.js';");
if (rewritten === src) throw new Error('core/config.js no longer imports yaml the expected way');
fs.writeFileSync(configJs, rewritten);
fs.copyFileSync(path.join(ROOT, 'LICENSE'), path.join(out, 'LICENSE'));

const manifest = JSON.parse(fs.readFileSync(path.join(out, 'addon.json'), 'utf8'));
const pkg = JSON.parse(fs.readFileSync(path.join(ROOT, 'package.json'), 'utf8'));
if (manifest.version !== pkg.version) {
  console.warn(`warning: addon.json version ${manifest.version} != package.json ${pkg.version}`);
}
console.log(`built ${manifest.id} ${manifest.version} -> ${out}`);