const formatTime = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return [year, month, day].map(formatNumber).join('-') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}
const formatTime2 = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()

  return [year, month, day].map(formatNumber).join('-') + ' ' + [hour, minute].map(formatNumber).join(':')
}
const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

let getQueryString = function (url, name) { 
  console.log("url = " + url)
  console.log("name = " + name) 
  var reg = new RegExp('(^|&|/?)' + name + '=([^&|/?]*)(&|/?|$)', 'i') 
  var r = url.substr(1).match(reg) 
  if (r != null) { console.log("r = " + r) 
  console.log("r[2] = " + r[2]) 
  return r[2] } return null; } 
  
/**
 * 格式化秒
 * @param int  value 总秒数
 * @return string result 格式化后的字符串
 */
function formatSeconds(value) {
  var theTime = parseInt(value);// 需要转换的时间秒 
  var theTime1 = 0;// 分 
  var theTime2 = 0;// 小时 
  var theTime3 = 0;// 天
  if (theTime > 60) {
    theTime1 = parseInt(theTime / 60);
    theTime = parseInt(theTime % 60);
    if (theTime1 > 60) {
      theTime2 = parseInt(theTime1 / 60);
      theTime1 = parseInt(theTime1 % 60);
      if (theTime2 > 24) {
        //大于24小时
        theTime3 = parseInt(theTime2 / 24);
        theTime2 = parseInt(theTime2 % 24);
      }
    }
  }
  var result = '';
  if (theTime > 0) {
    result = "" + parseInt(theTime) + "秒";
  }
  if (theTime1 > 0) {
    result = "" + parseInt(theTime1) + "分" + result;
  }
  if (theTime2 > 0) {
    result = "" + parseInt(theTime2) + "小时" + result;
  }
  if (theTime3 > 0) {
    result = "" + parseInt(theTime3) + "天" + result;
  }
  return result;
}
  
function toSubString(value) {
  if (value.length>=14){
    var str = value.substring(0, 14)
    return str + "..."
  } else {
    return value
  }
 
}

module.exports = { 
    getQueryString: getQueryString, 
    formatTime: formatTime,
    formatTime2:formatTime2,
    formatSeconds:formatSeconds,
    toSubString: toSubString
  }