(function () {
  define(['js/xapuJs.js'], function (xapu) {

    let a = [1, 2, 3, 4, 5]

   console.log('test')
   console.log(xapu.rollLeft(a))


    let theArray = []
    let initialized = false
    let output = document.getElementById('output')
    let input = document.getElementById('input')
    document.getElementById('submit').addEventListener('click', submit)
    input.addEventListener(
      'keypress',
      e => (e.code === 'Enter' ? submit() : '')
    )
    let commands = {
      reverse: function () {
        theArray.reverse()
        output.value += theArray.join(' ') + '\n'
      }
    }

    function submit () {
      let commandTokens = input.value.split(' ').filter(e => e !== '')
      console.log('Submitted: ' + commandTokens)
      if (!initialized) {
        theArray = commandTokens.slice(0)
        input.value = ''
        initialized = true
        output.value += theArray.join(' ') + '\n'
        return
      }
      try {
        commands[commandTokens[0]](commandTokens.slice(1))
      } catch (err) {
        output.value += 'Error: invalid command' + '\n'
      } finally {
        input.value = ''
      }
    }
  })
})()