import * as sort from './sort'
import * as format from './format'
import * as maths from './math'

import './hidpi-canvas'

const is_iphone = !!((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)))
const is_ipad = !!(navigator.userAgent.match(/iPad/i))
const is_android = !!(navigator.userAgent.match(/Android/i))
const is_mobile = is_iphone || is_ipad || is_android
const is_desktop = ! is_mobile;

const htmlClassList = document.body.parentNode.classList
htmlClassList.add(is_desktop ? 'desktop' : 'mobile')
htmlClassList.remove('loading')

// window.debug = false

const allProgress = (promises, progress_cb) => {
  let d = 0
  progress_cb(0, 0, promises.length)
  promises.forEach((p) => {
    p.then((s) => {
      d += 1
      progress_cb(Math.floor((d * 100) / promises.length), d, promises.length)
      return s
    })
  })
  return Promise.all(promises)
}

document.body.style.backgroundImage = 'linear-gradient(' + (maths.randint(40)+40) + 'deg, #fde, #ffe)'

const fieldSet = defaultFields => fields => {
  if (fields) {
    if (fields instanceof Set) {
      return fields
    }
    return new Set(fields.split(' '))
  }
  return defaultFields
}

export default {
  ...maths,
  ...format,
  sort,
  allProgress, fieldSet,
  is_iphone, is_ipad, is_android, is_mobile, is_desktop,
}