var privateKey = '-----BEGIN RSA PRIVATE KEY-----MIICXgIBAAKBgQCoChRDJ6e7BTE5yYBIS + NGYBpDs7ftEematqhvMmOFcJng7qjJk + yJ1j7DCqbCD2f / BI6gTfGXASiYuO6kklZu8Pkw4HAUkaaGyhaC8Z + TMg79PPRz5hziEdFXPTdXvXudiXbI2Wi6D90ZaSwN6ZHs7Mtc5VgGK3jxS35iLm+ oAQIDAQABAoGBAI + nHi9SxUdSZwS5yBsGFSNioNFj4Eag243RvShicUXwPvxVyqGY / cvQBhODFZAsz4Dpimxsda3b5bK51fmGyK / nXraHRunWcG7cDDB0EnRpGh4LvMI5Tny + kV0v07N0kkYF+ Lig88IjyBXMAY8m97QK / Huf6MsDFo7B6maSvlmBAkEA35GXk6achryGAoUyyLSro7bI9A9 + wXWFdXoqu1 / X1sZ8taGy7saB + XEA6EQ + XHRp7rZkQ5StoBL +reDGvLJLWQJBAMBqW / F + qg1VpmV / EfYTSS0 + jliw / Ik4kKHLuD / bYK61FG80JIoxLbelB / 1ZVZ8WR0cUKgrmoo8HOggjocNTNOkCQQCYibK86CHGAF0C3TSgIj01r2H+u4 / FmVScqeT8AVG31aeDGbeHGOPXeJWg4 + cUl80rNUDFp2yrWipwInwWhSPJAkAf+ 02u9Ru0vbC7nARTP19hWs10Jm7DLBi2G9NTIdaPE2ADH8qXAZeUt6R9UrTtjVlpkgtu5mjMlynpImsHuTPJAkEAoU10QspqfxL4F44KdHjHY1btc8wb4soaLy / eAY8PLE + jpNh8jsqA8v1EqLQbYz50D / BpkJsT5W + wydTvtEE3sA ==-----END RSA PRIVATE KEY-----'
var publicKey =' -----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCljXx8lXvdS9cxFXEvcC1m54cdU2O6yv4QNFFsfCjdn0hnwyydOfRY4oV0VB2apzG7X5FiPyxY8yj9acr43cqkH/zGSm+8CRWhRE0O197TBCj/ywnLz5KLm8745znQUVrfqWfAoC9JJjZG4ugVmEbsSQR1Bpks0USkvNWlLc1oKwIDAQAB-----END PUBLIC KEY-----'
var RSA = require('wx_rsa.js')

/**
 * 日期时间格式化 
 * 2018/01/01 23:59:59
 */
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(':')
}

/**
 * 密码加密 
 * 
 */
const formatEncrypt = (res = '') => {
  var input_rsa = res;
  var encrypt_rsa = new RSA.RSAKey();
  encrypt_rsa = RSA.KEYUTIL.getKey(publicKey);
  var encStr = encrypt_rsa.encrypt(input_rsa)
  encStr = RSA.hex2b64(encStr);
  return encStr
}

/**
 * 日期时间格式化 
 * 2018-01-01 23:59:59
 */
const formatTime2 = 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(':')
}

/**
 * 对个位数前补零 
 */
const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

/**
 * 日期格式化 
 * 2018-01-01
 */
const formatDate = 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('-')
}

/**
 * 时间格式化 
 * 23:59:59
 */
const formatTimeTwo = date => {
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return [hour, minute, second].map(formatNumber).join(':')
}
/**
 * 路径格式化
 */
const formatUrl = (url, obj) => {
  let temp = []
  let fn = (obj) => {
    let temp = []
    for (let i in obj) {
      if (obj[i] != null && typeof obj[i] == 'object') {
        temp.push(`${i}=${JSON.stringify(obj[i])}`)
      } else {
        temp.push(`${i}=${obj[i]}`)
      }
    }
    return temp.join('&')
  }
  return url.indexOf('?') < 0 ? url + '?' + fn(obj) : url + '&' + fn(obj)
}
/**
 * 函数节流和函数抖动。
 */
function throttle(fn, gapTime) {
  if (gapTime == null || gapTime == undefined) {
    gapTime = 1500
  }

  let _lastTime = null

  // 返回新的函数
  return function () {
    let _nowTime = + new Date()
    if (_nowTime - _lastTime > gapTime || !_lastTime) {
      fn.apply(this, arguments)   //将this和参数传给原函数
      _lastTime = _nowTime
    }
  }
}
/**
 *时间戳转天数。
 */
function getDateDiff(dateTimeStamp) {
  var result;
  var minute = 1000 * 60;
  var hour = minute * 60;
  var day = hour * 24;
  var halfamonth = day * 15;
  var month = day * 30;
  var now = new Date().getTime();
  var diffValue = (dateTimeStamp * 1000)-now;
  if (diffValue < 0) {
    return 0;
  }
  var dayC = diffValue/ day;
  if (dayC >0) {
    result = "" + dayC;
  }
  return result;
}
/**
 *时间戳。
 */
function formatDateZyb(timestamp, format) {
    const formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];
    let returnArr = [];
  let date = new Date(timestamp*1000);
    let year = date.getFullYear()
    let month = date.getMonth() + 1
    let day = date.getDate()
    let hour = date.getHours()
    let minute = date.getMinutes()
    let second = date.getSeconds()
    returnArr.push(year, month, day);

    returnArr = returnArr.map(formatNumber);

    for (var i in returnArr) {
      format = format.replace(formateArr[i], returnArr[i]);
    }
    return format;
} 
module.exports = {
  formatTime,
  formatTime2,
  formatUrl,
  formatDate,
  formatTimeTwo,
  formatNumber,  
  throttle,
  getDateDiff,
  formatDateZyb,
  formatEncrypt
}