const evk = require('easyvk')
const path = require('path')

const config = {
  BOT_ID: 176316300,
  START_MESSAGE: 'помощь'
}

evk({
  username: 'Аккаунт',
  password: 'Пароль',
  session_file: path.join(__dirname, '.vk')
}).then(async vk => {

  let startDate = 0;
  let timings = [];

  async function  reSend () {
    return new Promise((resolve, reject) => {
      vk.call('messages.send', {
        peer_id: -config.BOT_ID,
        message: config.START_MESSAGE
      }).then(async () => {
        startDate = new Date().getTime()

        if (timings.length < 10) {
          console.log(Math.floor(timings.length/10 * 100) + '%')
          setTimeout(() => {
            reSend().then(resolve, reject)
          }, 5000)
        } else {
          resolve(true)
        }
      })
    })
  }

  let {connection: user}  = await vk.longpoll.connect();

  user.on("message", (msg) => {

    if (msg[3] == -config.BOT_ID && !(msg[2] & 2)) {
      timings.push(new Date().getTime() - startDate)
    }

  });

  await reSend();

  console.log(timings.length)

  let sum = 0;
  timings.forEach(t => {sum += t})
  sum /= timings.length;

  console.log(sum)
})