// Erzeugt dist/w.js und dist/h.js: core.js + Einstieg als IIFE, ohne import/export (kein Build-Tool).
// Aufruf: node client/build.js
import { readFileSync, writeFileSync, mkdirSync } from 'node:fs';
import { dirname, join } from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';

const DIR = dirname(fileURLToPath(import.meta.url));
const read = (f) => readFileSync(join(DIR, f), 'utf8');

function wrap(name, entry) {
  const core = read('core.js').replace(/^export\s+/gm, '');
  const body = read(entry).replace(/^import\s[^\n]*\n/gm, '');
  return `/* WEBklar Analyse ${name} - generiert aus client/core.js + client/${entry} (node client/build.js), nicht von Hand aendern */\n(function () {\n'use strict';\n${core}\n${body}\n})();\n`;
}

export function buildAll() {
  return { w: wrap('w.js', 'w.js'), h: wrap('h.js', 'h.js') };
}

if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
  const b = buildAll();
  mkdirSync(join(DIR, 'dist'), { recursive: true });
  writeFileSync(join(DIR, 'dist', 'w.js'), b.w);
  writeFileSync(join(DIR, 'dist', 'h.js'), b.h);
  console.log('dist/w.js', b.w.length, 'Bytes; dist/h.js', b.h.length, 'Bytes');
}