封装：项目中常用的过滤器---时间日期过滤器、四舍五入过滤器、字典过滤器

import moment from 'moment'

// unix时间戳格式器（默认年月日时分秒）
export function unixTimestampFilter (value, format = 'YYYY-MM-DD HH:mm:ss') {
  if (moment(parseInt(value)).format(format) === 'Invalid date') {
    return value
  } else {
    return moment(parseInt(value)).format(format)
  }
}

// 四舍五入(默认到小数点后两位)格式数据
export function decimalNumFilter (value, num = 2) {
  let _test = /^-?\d+(\.\d*)?$/.test(value)
  if (_test) {
    const _number = parseFloat(value)
    return _number.toFixed(num)
  } else if (typeof value === 'number') { // 处理极小数 如：2.220446049250313e-16
    return value.toFixed(2)
  }
  return value
}

// 是否
export function isTrue (value) {
  switch (value) {
    case 1 : return '是'
    case '1' : return '是'
    case 'true' : return '是'
    case true : return '是'
    case 0 : return '否'
    case '0' : return '否'
    case false : return '否'
    case 'false' : return '否'
    default : return '未知'
  }
}

// 字典过滤
export function filterDataBaseDictionary (value) {
  const DataBaseDictionary = dotData(window, 'DataBaseDictionary') || {}
  return DataBaseDictionary[value] || value
}

// 天 小时 转化
export function filterSecond (value) {
  if (String(value) === '0') {
    return '0'
  }
  if (empty(value) || !isIntegerStringUtil(value)) {
    return value
  }
  let temp = ''
  /* const day = Math.floor(value / (24 * 60 * 60))
  if (day) {
    temp += `${day}天`
    value -= day * 24 * 60 * 60
  } */
  const hour = Math.floor(value / (60 * 60))
  if (hour) {
    temp += `${hour}小时`
    value -= hour * 60 * 60
  }

  const minute = Math.floor(value / 60)
  if (minute) {
    temp += `${minute}分钟`
  }
  if (temp === '') {
    temp = '小于1分钟'
  }
  return temp
}


// 数字金额小写转换成中文大写
export function changeChineseNumber (num) {
  num = decimalNumFilter(num)
  let pre = ''
  if (isNaN(num) || num > Number.MAX_VALUE) return ''
  if (num < 0) {
    num = Math.abs(num)
    pre = '负'
  }
  let cn = '零壹贰叁肆伍陆柒捌玖'
  let unit = ['拾佰仟', '分角']
  let unit1 = ['万亿', '']
  let numArray = num.toString().split('.')
  // let start = new Array(numArray[0].length - 1, 2)
  let start = [numArray[0].length - 1, 2]
  function toChinese (num, index) {
    let num2 = num.replace(/\d/g, function ($1) {
      return cn.charAt($1) + unit[index].charAt(start-- % 4 ? start % 4 : -1)
    })
    return num2
  }
  for (let i = 0; i < numArray.length; i++) {
    let tmp = ''
    for (let j = 0; j * 4 < numArray[i].length; j++) {
      let strIndex = numArray[i].length - (j + 1) * 4
      let str = numArray[i].substring(strIndex, strIndex + 4)
      start = i ? 2 : str.length - 1
      let tmp1 = toChinese(str, i)
      tmp1 = tmp1.replace(/(零.)+/g, '零').replace(/零+$/, '')
      tmp1 = tmp1.replace(/^壹拾/, '拾')
      tmp = (tmp1 + unit1[i].charAt(j - 1)) + tmp
    }
    numArray[i] = tmp
  }
  numArray[1] = numArray[1] ? numArray[1] : ''
  numArray[0] = numArray[0] ? numArray[0] + '元' : [numArray[0], numArray[1] = numArray[1].replace(/^零+/, '')]
  numArray[1] = numArray[1].match(/分/) ? numArray[1] : numArray[1] + '整'
  return pre + numArray[0] + numArray[1]
}