export function parseTime(time, cFormat) {
    if (arguments.length === 0 || !time) {
      return null
    }
    const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
    let date
    if (typeof time === 'object') {
      date = time
    } else {
      if ((typeof time === 'string')) {
        if ((/^[0-9]+$/.test(time))) {
          // support "1548221490638"
          time = parseInt(time)
        } else {
          // support safari
          // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
          time = time.replace(new RegExp(/-/gm), '/')
        }
      }
  
      if ((typeof time === 'number') && (time.toString().length === 10)) {
        time = time * 1000
      }
      date = new Date(time)
    }
    const formatObj = {
      y: date.getFullYear(),
      m: date.getMonth() + 1,
      d: date.getDate(),
      h: date.getHours(),
      i: date.getMinutes(),
      s: date.getSeconds(),
      a: date.getDay()
    }
    const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
      const value = formatObj[key]
      // Note: getDay() returns 0 on Sunday
      if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
      return value.toString().padStart(2, '0')
    })
    return time_str
  }
  /**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name] = val
    return rs
  })
  return obj
}
// 只能转换 4000 以下的正整数阿拉伯数字
export function NumConvertLM(num) {
  var Roman = [['', 'I', 'Ⅱ', 'Ⅲ', 'Ⅳ', 'Ⅴ', 'Ⅵ', 'Ⅶ', 'Ⅷ', 'Ⅸ'],
    ['', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC'],
    ['', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM'],
    ['', 'M', 'MM', 'MMM', '  ', ' ', '  ', '   ', '    ', '  ']]

  if (isNaN(num)) return num
  var ReverseArr = num.toString().split('').reverse()
  var CorrectArr = []
  for (var i = 0; i < ReverseArr.length; i++) {
    CorrectArr.unshift(Roman[i][ReverseArr[i]])
  }
  return CorrectArr.join('')
}

export function getTime(day=0) {
  let date =new Date();
  let y=date.getFullYear()
  let m=date.getMonth()
  let d=date.getDate()
  let today=new Date(`${y}-${m+1}-${d}`)
  return parseTime(new Date(today.getTime()+day*60*60*24*1000))
}
export function Uint8ArrayToString(fileData){
  var dataString = "";
  for (var i = 0; i < fileData.length; i++) {
      dataString += String.fromCharCode(fileData[i]);
  }
  
  return dataString
}