const Mario = require('../../images/mario.gif')

const Knmc = function (w) {
  this.window = w
}

Knmc.prototype.init = function () {
  let chars = ''
  const seq = '38384040373937396665'
  const body = this.window.document.querySelector('body')

  body.addEventListener('keyup', function (e) {
    chars += e.keyCode.toString()

    if (chars.indexOf(seq) !== -1) {
      chars = ''
      const url = Mario
      const image = new Image()
      image.classList.add('fixed')
      image.style.position = 'fixed'
      image.style.bottom = '-11px'
      image.style.left = '-256px'

      image.onload = function () {
        image.classList.add('knmc')
        body.appendChild(image)
      }

      image.src = url
    }
  })
}

module.exports = Knmc