/*
 * @Author: 丘骏_jun
 * @Date: 2019-11-21 10:59:17
 * @Last Modified by: 丘骏_jun
 * @Last Modified time: 2019-12-30 16:29:45
 */
// 通用function，通过全局安装，或import引用调用

var fn_obj = {}// fn.js对象

let scrollBarWidth // 滚动条宽度
// 获取浏览器滚动条宽度
function getScrollBarWidth() {
  if (scrollBarWidth !== undefined) return scrollBarWidth

  const outer = document.createElement('div')
  outer.className = 'el-scrollbar__wrap'
  outer.style.visibility = 'hidden'
  outer.style.width = '100px'
  outer.style.position = 'absolute'
  outer.style.top = '-9999px'
  document.body.appendChild(outer)

  const widthNoScroll = outer.offsetWidth
  outer.style.overflow = 'scroll'

  const inner = document.createElement('div')
  inner.style.width = '100%'
  outer.appendChild(inner)

  const widthWithScroll = inner.offsetWidth
  outer.parentNode.removeChild(outer)
  scrollBarWidth = widthNoScroll - widthWithScroll

  return scrollBarWidth
}
// 获取最近样式
// function getCurrentStyle (obj, prop) {
//     if (obj.currentStyle) {
//         return obj.currentStyle[prop];
//     } else if (window.getComputedStyle) {
//         prop = prop.replace(/([A-Z])/g, "-$1");
//         prop = prop.toLowerCase();
//         return document.defaultView.getComputedStyle(obj, null)[prop];
//     }
//     return null;
// }
// // 判断是否有滚动条
// function hasScrollBar (obj) {
//     return getCurrentStyle(obj, 'overflow') == 'hidden'
//         ? 0
//         : document.body.scrollHeight > (window.innerHeight || document.documentElement.clientHeight);
// }

// 日期格式化
// eslint-disable-next-line no-extend-native
Date.prototype.format = function(format) {
  var o = {
    'M+': this.getMonth() + 1, // month
    'd+': this.getDate(), // day
    'H+': this.getHours(), // hour
    'm+': this.getMinutes(), // minute
    's+': this.getSeconds(), // second
    'q+': Math.floor((this.getMonth() + 3) / 3), // quarter
    'S': this.getMilliseconds() // millisecond
  }

  if (/(y+)/.test(format)) {
    format = format.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length))
  }

  for (var k in o) {
    if (new RegExp('(' + k + ')').test(format)) {
      format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ('00' + o[k]).substr(('' + o[k]).length))
    }
  }
  return format
}

// 消除字符串多余空格
if (!String.prototype.trim) {
  // eslint-disable-next-line no-extend-native
  String.prototype.trim = function() {
    return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '')
  }
}

/**
 * 获取本地缓存 localStorage
 * @param {string} key storage 标记
 * @return {*} 值
 */
function getLocalStorage(key) {
  if (!key) {
    return
  }
  var result = localStorage.getItem(key) || ''
  try {
    result = JSON.parse(result)
  // eslint-disable-next-line no-empty
  } catch (e) {}
  return result
}

/**
 * 获取本地缓存 sessionStorage
 * @param {string} key storage 标记
 * @return {*} 值
 */
function getSessionStorage(key) {
  var result = sessionStorage.getItem(key) || ''
  try {
    result = JSON.parse(result)
  // eslint-disable-next-line no-empty
  } catch (e) {}
  return result
}

/**
 * 保存本地缓存 localStorage
 * @param {string} key storage 标记
 * @param {*} value 值
 */
function setLocalStorage(key, value) {
  if (typeof value === 'object') {
    value = JSON.stringify(value)
  }
  localStorage.setItem(key, value)
}

/**
 * 保存本地缓存 sessionStorage
 * @param {string} key storage 标记
 * @param {*} value 值
 */
function setSessionStorage(key, value) {
  if (typeof value === 'object') {
    value = JSON.stringify(value)
  }
  sessionStorage.setItem(key, value)
}

/**
 * 移除本地缓存 localStorage
 * @param {string} key storage 标记
 */
function removeLocalStorage(key) {
  localStorage.removeItem(key)
}

/**
 * 移除本地缓存 sessionStorage
 * @param {string} key storage 标记
 */
function removeSessionStorage(key) {
  sessionStorage.removeItem(key)
}

/**
 * 输入的价格限制在两位小数
 * @param {string} number 价格
 * @return {string} 过滤后的价格
 */
function toFixed2(number) {
  number += ''
  // eslint-disable-next-line eqeqeq
  if (number == '') {
    return ''
  }
  if (isNaN(number)) {
    return ''
  }

  if (number.indexOf('.') > -1) {
    var arr = number.split('.')
    if (arr[1].length > 2) {
      arr[1] = arr[1].substring(0, 2)
    }
    number = arr[0] + '.' + arr[1]
    return number
  }

  return number
}
/**
 * 价格转，分，为单位
 * @param {string|number} price
 */
function amountFen(price) {
  return parseInt(price * 100)
}

/**
 * 获取查询字符串
 * @param {string} name
 * @param {string} url 默认 location.href
 */
function getQueryString(name, url) {
  url = url || location.href

  url = url.replace(/\#\S*/g, '')

  var reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)')
  var r = /\?/.test(url) && url.split('?')[1].match(reg)
  if (r != null) {
    return r[2]
  }
  return ''
}

// 全局缓存
var g_el = null
/**
 * 绑定div滚动到底部
 * @param {dom} el
 * @param {function} callback
 */
function onReachBottom(el, callback) {
  const offsetHeight = el.offsetHeight || window.outerHeight
  const isWindow = el === window
  g_el = el

  el.onscroll = () => {
    const scrollTop = isWindow ? document.documentElement.scrollTop : el.scrollTop
    const scrollHeight = isWindow ? document.body.scrollHeight : el.scrollHeight
    // console.log(scrollTop, scrollHeight)
    // console.log(offsetHeight, scrollTop, scrollHeight)
    if ((offsetHeight + scrollTop) - scrollHeight >= -1) {
      typeof callback === 'function' && callback()
    }
  }
}
/**
 * 取消绑定
 * @param {dom} el
 */
function offReachBottom(el) {
  el = el || g_el
  el.onscroll = null
  g_el = null
}
/**
 * 生成唯一id
 */
function uuid() {
  var s = []
  var hexDigits = '0123456789abcdef'
  for (var i = 0; i < 36; i++) {
    s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
  }
  s[14] = '4'
  s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1)

  s[8] = s[13] = s[18] = s[23] = '-'
  var uuid = s.join('')
  return uuid
}

/**
 * 替换当前链接，无返回
 * @param {string} href
 */
function urlReplace(href) {
  if (!href) {
    return
  }
  if (href && /^#|javasc/.test(href) === false) {
    if (history.replaceState) {
      history.replaceState(null, document.title, href.split('#')[0] + '#')
      location.replace(href)
    } else {
      location.replace(href)
    }
  }
}

/**
 * 获取当前时间的对应的时间对象（如年月日，时分秒，星期几，时间戳）
 * @param {Object} page 页面对象
 * @param {String} key 时间对象的字段名
 * @param {String} pageKey 页面关键词
 */
function countGetTime(page, key, pageKey) {
  var dayStamp = new Date().getTime()
  fn_obj[`timer_${pageKey}`] = null
  var time = new Date(dayStamp)
  var year = time.getFullYear()
  let month = time.getMonth() + 1
  let date = time.getDate()
  let hours = time.getHours()
  let minute = time.getMinutes()
  let second = time.getSeconds()

  if (month < 10) { month = '0' + month }
  if (date < 10) { date = '0' + date }
  if (hours < 10) { hours = '0' + hours }
  if (minute < 10) { minute = '0' + minute }
  if (second < 10) { second = '0' + second }
  const weekNum = new Date().getDay()
  const week = {
    0: '星期天',
    1: '星期一',
    2: '星期二',
    3: '星期三',
    4: '星期四',
    5: '星期五',
    6: '星期六'
  }
  var res = {
    week: week[weekNum ] ? week[weekNum ] : '日期错误',
    day: `${year}年${month}月${date}日 ${hours}:${minute}:${second}`,
    date: `${year}年${month}月${date}日`,
    timeMin: `${hours}:${minute}`,
    time: `${hours}:${minute}:${second}`,
    timeStamp: dayStamp
  }
  page[key] = res
  fn_obj[`timer_${pageKey}`] = setTimeout(() => {
    countGetTime(page, key, pageKey)
  }, 1000)
  // console.log('1111111111111111111111', fn_obj)
}

/**
 * 停止当前页面的计时功能
 * @param {String} pageKey 页面关键词
 */
function stopCountGetTime(pageKey) {
  clearTimeout(fn_obj[`timer_${pageKey}`])
  fn_obj[`timer_${pageKey}`] = null
}

/**
 * 轮询异步调用接口
 * @param {Object} page 页面对象this
 * @param {String} fnName 要轮询的方法名称
 * @param {String} pageKey 页面关键字
 * @param {Number} timeStamp 多少秒轮询
 */
function pollingAjaxFn(page, fnName, pageKey, timeStamp = 1000) {
  if (!page || !fnName || !pageKey) {
    return
  }
  page[fnName] && page[fnName]()
  fn_obj[`pollingTimer_${pageKey}`] = setTimeout(() => {
    pollingAjaxFn(page, fnName, pageKey, timeStamp)
  }, timeStamp)
}

/**
 * 停止轮询
 * @param {String} pageKey 页面关键词
 */
function stopPollingAjaxFn(pageKey) {
  clearTimeout(fn_obj[`pollingTimer_${pageKey}`])
  fn_obj[`pollingTimer_${pageKey}`] = null
}

// 随机12位数
function getCheckedId() {
  var s = []
  var hexDigits = '0123456789abcdef'
  for (var i = 0; i < 12; i++) {
    s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
  }
  // s[14] = '4';
  // s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);

  // s[8] = s[13] = s[18] = s[23] = '-'
  var uuid = s.join('')
  return uuid
}

var fn = {
  getLocalStorage,
  getSessionStorage,
  setLocalStorage,
  setSessionStorage,
  removeLocalStorage,
  removeSessionStorage,

  // eslint-disable-next-line indent
    // eslint-disable-next-line indent
    // 判断是否有滚动条，并获取滚动宽度
  // getScrollBarWidth () {
  //     return hasScrollBar(document.body) ? getScrollBarWidth() : 0
  // },
  getScrollBarWidth,

  toFixed2,
  amountFen,

  getQueryString,
  onReachBottom,
  offReachBottom,

  uuid,
  urlReplace,

  countGetTime,
  stopCountGetTime,
  pollingAjaxFn,
  stopPollingAjaxFn,
  getCheckedId,

  /**
     * 深拷贝
     * @param {object} obj 被复制的对象
     * @return {object} 复制完成的对象
     */
  deepCopyFN(obj) {
    if (typeof obj !== 'object') {
      return obj
    }

    let cloneObj = {}
    switch (obj.constructor) {
      case Array:
        cloneObj = []
      // eslint-disable-next-line no-fallthrough
      case Object:
        for (var property in obj) {
          cloneObj[property] = typeof obj[property] === 'object' ? this.deepCopyFN(obj[property]) : obj[property]
        }
        break
      case Map:
        cloneObj = new Map()
        obj.forEach((value, key) => {
          cloneObj.set(key, typeof value === 'object' ? this.deepCopyFN(value) : value)
        })
        break
      case Set:
        cloneObj = new Set()
        obj.forEach(value => {
          cloneObj.add(typeof value === 'object' ? this.deepCopyFN(value) : value)
        })
        break
    }
    return cloneObj
  }
}
export default fn