'use strict'

import readline from 'readline'
import path from 'path'
import sanitize from 'sanitize-filename'

import * as asn from './common/async'
import * as dl from './common/download'
import { dbPromise } from './database'

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..')
  const data = await dl.getVideoInfo(furl)

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

  console.log('=> Cleaning up..')
  const 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)

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

  filename = sanitize(filename)
  const fn = path.join(musicdir, filename)
  await asn.setMetadata(fn, clean, file.source, true)

  const addAnsw = await asn.askAsync(rl, 'Would you like to add it to the database now? [N/y] ? ')
  if (addAnsw && addAnsw.trim().toLowerCase().indexOf('y') === 0) {
    // Add to database
    try {
      const verify = await asn.getInfos(fn)
      await asn.insertDB(await dbPromise, verify)
    } catch (e) {
      console.warn('=!= Add to database failed!')
      console.error(e.stack)
    }
  }

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

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