/**
 * Wechaty - Conversational RPA SDK for Chatbot Makers.
 *  - https://github.com/wechaty/wechaty
 */
import {
  Contact,
  Message,
  ScanStatus,
  Wechaty,
  log,
}                  from 'wechaty'

import { generate } from 'qrcode-terminal'

require('dotenv').config()

function onScan (qrcode: string, status: ScanStatus) {
  if (status === ScanStatus.Waiting || status === ScanStatus.Timeout) {
    generate(qrcode, { small: true })  // show qrcode on console

    const qrcodeImageUrl = [
      'https://wechaty.js.org/qrcode/',
      encodeURIComponent(qrcode),
    ].join('')

    log.info('StarterBot', 'onScan: %s(%s) - %s', ScanStatus[status], status, qrcodeImageUrl)
  } else {
    log.info('StarterBot', 'onScan: %s(%s)', ScanStatus[status], status)
  }
}

function onLogin (user: Contact) {
  log.info('StarterBot', '%s login', user)
}

function onLogout (user: Contact) {
  log.info('StarterBot', '%s logout', user)
}

async function onMessage (msg: Message) {
  log.info('StarterBot', msg.toString())

  if (msg.text() === 'ding') {
    await msg.say('dong')
  }
}

const bot = new Wechaty({
  name: 'ding-dong-bot',
  /**
   * How to set Wechaty Puppet Provider:
   *
   *  1. Specify a `puppet` option when instantiating Wechaty. (like `{ puppet: 'wechaty-puppet-padlocal' }`, see below)
   *  1. Set the `WECHATY_PUPPET` environment variable to the puppet NPM module name. (like `wechaty-puppet-padlocal`)
   *
   * You can use the following providers:
   *  - wechaty-puppet-wechat (web protocol, no token required)
   *  - wechaty-puppet-whatsapp (web protocol, no token required)
   *  - wechaty-puppet-padlocal (pad protocol, token required)
   *  - wechaty-puppet-service (token required, see: <https://wechaty.js.org/docs/puppet-services>)
   *  - etc. see: <https://wechaty.js.org/docs/puppet-providers/>
   */
  // puppet: 'wechaty-puppet-whatsapp'
})

bot.on('scan',    onScan)
bot.on('login',   onLogin)
bot.on('logout',  onLogout)
bot.on('message', onMessage)

bot.start()
  .then(() => log.info('StarterBot', 'Starter Bot Started.'))
  .catch(e => log.error('StarterBot', e))