'use strict'

import fs from 'fs-extra'
import readline from 'readline'
import path from 'path'

import asn from './common/async'
import dl from './common/download'

const values = require(path.join(process.cwd(), 'values.json'))
const musicdir = path.resolve(values.directory)

const rl = readline.createInterface({
 input: process.stdin,
 output: process.stdout
})

async function download (furl) {
  console.log('=> Getting information..')
  let data = await dl.getVideoInfo(furl)

  console.log('=> Downloading file..')
  let file = await dl.fetchVideo(data)

  console.log('=> Cleaning up..')
  let clean = dl.parseTitle(file)
  let filename = clean.artist + ' - ' + clean.title + '.mp3'

  console.log('=> Original Title: ' + file.title + '\n')
  console.log('== Determined Title: ' + clean.title)
  console.log('== Determined Artist: ' + clean.artist)
  console.log('== Determined File Name: ' + filename)

  let titleAnsw = await asn.askAsync(rl, `Title [${clean.title}] ? `)
  let artistAnsw = await asn.askAsync(rl, `Artist [${clean.artist}] ? `)
  let fileAnsw = await asn.askAsync(rl, `File [${filename}] ? `)

  if (titleAnsw && titleAnsw.trim() !== '') {
    clean.title = titleAnsw
  }

  if (artistAnsw && artistAnsw.trim() !== '') {
    clean.artist = artistAnsw
  }

  if (fileAnsw && fileAnsw.trim() !== '') {
    filename = fileAnsw
  }

  let fn = path.join(musicdir, filename)
  await asn.copyAsync(file.source, fn)
  await fs.unlink(file.source)

  let id3 = await asn.promiseExec(`id3 -a "${clean.artist}" -t "${clean.title}" "${fn}"`)

  console.log('=> Done.')
  rl.close()
}

download(process.argv[2]).catch((e) => {
  console.error(e.message)
  rl.close()
})