import * as esbuild from 'esbuild';
import { resolve, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';

const __dirname = dirname(fileURLToPath(import.meta.url));
const watch = process.argv.includes('--watch');
const libRoot = resolve(__dirname, '../../src/lib');

/** @type {import('esbuild').BuildOptions} */
const options = {
  entryPoints: [resolve(__dirname, 'src/cli.ts')],
  bundle: true,
  outfile: resolve(__dirname, 'out/cli.js'),
  format: 'esm',
  platform: 'node',
  target: 'node22',
  sourcemap: true,
  sourcesContent: false,
  logLevel: 'info',
  banner: {
    js: '#!/usr/bin/env node',
  },
  alias: {
    '@lib': libRoot,
  },
};

if (watch) {
  const ctx = await esbuild.context(options);
  await ctx.watch();
  console.log('[lexai-cli] watching…');
} else {
  await esbuild.build(options);
  console.log('[lexai-cli] compiled → out/cli.js');
}