import $ from 'jquery'

// https://stackoverflow.com/a/18650828
function formatBytes (a, b) {
  if (a === 0) return '0 Bytes'
  let c = 1024
  let d = b || 2
  let e = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
  let f = Math.floor(Math.log(a) / Math.log(c))
  return parseFloat((a / Math.pow(c, f)).toFixed(d)) + ' ' + e[f]
}

function recursiveStats (table, subtable) {
  for (let key in table) {
    let val = table[key]
    if (typeof val === 'object') {
      recursiveStats(val, key)
    } else {
      if (key === 'time') {
        let date = new Date(null)
        date.setSeconds(Math.floor(parseInt(val) / 1000)) // specify value for SECONDS here
        val = date.toISOString().substr(11, 8)
      } else if (key.indexOf('bytes') !== -1) {
        val = formatBytes(val, 3)
      }
      $('#stat_' + (subtable ? subtable + '_' : '') + key).text(val)
    }
  }
}

function dashboard (k) {
  $.get('/dashboard/data', function (res) {
    if (res.error) {
      window.location.href = '/'
      return
    }

    let fullURL = window.location.origin + '/watch/' + res.name
    $('#myStream').attr('src', fullURL)
    $('#stream_url').text(fullURL).attr('href', fullURL)
    $('#stream_live').text(res.live ? 'Yes' : 'No')
  })

  $('#show_key').click(function (e) {
    e.preventDefault()
    $('#show_key').html(k)
  })

  setInterval(function () {
    $.get('/dashboard/stats', function (res) {
      if (res.error) return
      recursiveStats(res, '')
    })
  }, 5000)
}

export default dashboard