import * as esbuild from 'esbuild';
import { copyFileSync, mkdirSync, existsSync } from 'fs';
import { resolve, dirname } from 'path';
import { fileURLToPath } from 'url';

const __dirname = dirname(fileURLToPath(import.meta.url));
const rootDir = resolve(__dirname, '..');
const outDir = resolve(rootDir, 'out');

if (!existsSync(outDir)) {
  mkdirSync(outDir, { recursive: true });
}

await esbuild.build({
  entryPoints: [resolve(rootDir, 'src', 'extension.ts')],
  bundle: true,
  outfile: resolve(outDir, 'extension.js'),
  external: [
    'vscode',
    'eslint',
    'stylelint',
    'child_process',
    'fs',
    'path',
    'url',
    'os',
  ],
  format: 'cjs',
  platform: 'node',
  target: 'node22',
  minify: true,
  sourcemap: false,
  treeShaking: true,
});

/* copy webview JS files */
const viewsSrc = resolve(rootDir, 'src', 'views');
const webviewDir = resolve(outDir, 'webview');
if (existsSync(viewsSrc)) {
  const files = ['setupView.js'];
  for (const f of files) {
    const src = resolve(viewsSrc, f);
    const dest = resolve(webviewDir, f);
    if (existsSync(src)) {
      mkdirSync(dirname(dest), { recursive: true });
      copyFileSync(src, dest);
    }
  }
}

console.log('Build complete.');