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 formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

const getTypeSn = url => {
  let type_sn = ''
  if (url.indexOf('type_sn') != -1 && url.indexOf('bonusex') != -1) {
    let arr = url.split('&')
    arr.some(item => {
      if (item.indexOf('type_sn') != -1) {
        type_sn = item.split('=')[1]
        return true
      }
    })
  }
  return type_sn
}

function getUrlPrefixAndParams(url) {
  // 用JS拿到URL，如果函数接收了URL，那就用函数的参数。如果没传参，就使用当前页面的URL

  let params = url.split('?');
  let prefix = params[0];
  if(params.length < 2) {    
    return [prefix, {}];
  }
  
  var queryString = params[1];
  // 用来存储我们所有的参数
  var obj = {};
  // 如果没有传参，返回一个空对象
  if (!queryString) {
      return obj;
  }
  // stuff after # is not part of query string, so get rid of it
  queryString = queryString.split('#')[0];
  // 将参数分成数组
  var arr = queryString.split('&');
  for (var i = 0; i < arr.length; i++) {
      // 分离成key:value的形式
      var a = arr[i].split('=');
      // 将undefined标记为true
      var paramName = a[0];
      var paramValue = typeof (a[1]) === 'undefined' ? true : a[1];
      // 如果调用对象时要求大小写区分，可删除这两行代码
      paramName = paramName.toLowerCase();
      if (typeof paramValue === 'string') paramValue = paramValue.toLowerCase();
      // 如果paramName以方括号结束, e.g. colors[] or colors[2]
      if (paramName.match(/\[(\d+)?\]$/)) {
          // 如果paramName不存在，则创建key
          var key = paramName.replace(/\[(\d+)?\]/, '');
          if (!obj[key]) obj[key] = [];
          // 如果是索引数组 e.g. colors[2]
          if (paramName.match(/\[\d+\]$/)) {
              // 获取索引值并在对应的位置添加值
              var index = /\[(\d+)\]/.exec(paramName)[1];
              obj[key][index] = paramValue;
          } else {
              // 如果是其它的类型，也放到数组中
              obj[key].push(paramValue);
          }
      } else {
          // 处理字符串类型
          if (!obj[paramName]) {
              // 如果如果paramName不存在，则创建对象的属性
              obj[paramName] = paramValue;
          } else if (obj[paramName] && typeof obj[paramName] === 'string') {
              // 如果属性存在，并且是个字符串，那么就转换为数组
              obj[paramName] = [obj[paramName]];
              obj[paramName].push(paramValue);
          } else {
              // 如果是其它的类型，还是往数组里丢
              obj[paramName].push(paramValue);
          }
      }
  }
  return [prefix,obj];
}


var RSA = require('./wx_rsa.js')
function strsign(str) {
  var privateKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`

  var sign_rsa = RSA.KEYUTIL.getKey(privateKey);
  console.log(sign_rsa)
  var hashAlg = 'sha1';
  let sig = sign_rsa.signString(str, hashAlg);
  sig = RSA.hex2b64(sig); // hex 转 b64
  return sig;
}

function isEmpty(val) {
  if(val == '') {
    return true;
  } 
  
  if(val == null) {
    return true;
  }

  if(val == undefined) {
    return true;
  }
  
  return false;
}

function arrsign(map) {
  let keys = new Array()

  for (let key of Object.keys(map)) {
    keys.push(key)
  }
  keys.sort();

  let content = ''
  let i = 0;
  keys.forEach(key => {
    let val = map[key];
    val = '' + val
    if (false === isEmpty(val) && "@" != val.substr(0, 1)) {
      if (i == 0) {
        content += '' + key + "=" + encodeURI(val);
      } else {
        content += "&" + key + "=" + encodeURI(val);
      }
      i++;
    }
  });
  console.log('content:', content);
  return strsign(content);
}

module.exports = {
  getTypeSn: getTypeSn,
  formatTime: formatTime,
  parseAppjump: getUrlPrefixAndParams,
  strsign: strsign,
  arrsign: arrsign
}