// Сборка: node build.mjs [--serve] [--port 5173]
import * as esbuild from 'esbuild';
import { cpSync, mkdirSync } from 'node:fs';

const serve = process.argv.includes('--serve');
const portArg = process.argv.indexOf('--port');
const port = portArg > 0 ? +process.argv[portArg + 1] : 5173;

mkdirSync('dist', { recursive: true });
cpSync('public', 'dist', { recursive: true });

const options = {
  entryPoints: { main: 'src/main.ts', worker: 'src/gen/worker.ts' },
  outdir: 'dist',
  bundle: true,
  format: 'esm',
  target: 'es2022',
  sourcemap: true,
  minify: !serve,
  logLevel: 'info',
};

if (serve) {
  const ctx = await esbuild.context(options);
  await ctx.watch();
  const { host } = await ctx.serve({ servedir: 'dist', port });
  console.log(`\n  Открыть: http://localhost:${port}/\n`);
  void host;
} else {
  await esbuild.build(options);
}