/**
 * {}
 * @author yutent<yutent.io@gmail.com>
 * @date 2023/02/15 22:46:25
 */

import Es from 'esbuild'
import fs from 'iofs'
import { resolve } from 'path'
import { exec } from 'child_process'
import pkg from './package.json' assert { type: 'json' }

const NPM_URL = 'https://registry.npmmirror.com'
const PKG_NAME = 'sass'

function download(url) {
  return fetch(url).then(r => r.arrayBuffer())
}

export function execAsync(cmd) {
  return new Promise((yes, no) => {
    exec(cmd, { cwd: resolve('./') }, (err, res) => {
      if (err) {
        no(err)
      } else {
        yes(res)
      }
    })
  })
}

!(async function () {
  let { version, url } = await fetch(
    'https://registry.npmmirror.com/' + PKG_NAME,
    {
      headers: {
        'content-type': 'application/json',
        accept: 'application/json'
      }
    }
  )
    .then(r => r.json())
    .then(r => {
      let v = r['dist-tags'].latest
      let url = r.versions[v].dist.tarball
      return { version: v, url }
    })
  let ab = await download(url)

  pkg.version = version

  fs.echo(JSON.stringify(pkg, null, 2), './package.json')
  fs.echo(Buffer.from(ab), `./${PKG_NAME}.tgz`)

  await execAsync(`tar -xzf ${PKG_NAME}.tgz`)

  Es.buildSync({
    entryPoints: ['package/sass.default.dart.js', 'package/sass.dart.js'],
    outdir: 'dist',
    platform: 'node',
    minify: true,
    bundle: false,
    target: 'node12'
  })

  fs.mv('dist/sass.default.dart.js', 'src/index.js')

  fs.rm('./package', true)
  fs.rm(`./${PKG_NAME}.tgz`)
})()