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
}

//获取时间
//获取d当前时间多少天后的日期和对应星期
function getDates(days, todate = new Date()) { //todate默认参数是当前日期，可以传入对应时间
  // function getDates(days,  todate =getCurrentMonthFirst()) { //todate默认参数是当前日期，可以传入对应时间
  var dateArry = [];
  for (var i = 0; i < days - 3; i++) {
    var dateObj = dateLater(todate, i);
    console.log(dateObj)
    dateArry.push(dateObj)
  }
  return dateArry;
}
//传入时间后几天 param：传入时间：dates:"2018-04-02",later:往后多少天
function dateLater(dates, later) {
  let dateObj = {};
  let show_day = new Array('周日', '周一', '周二', '周三', '周四', '周五', '周六');
  let date = new Date(dates);
  date.setDate(date.getDate() + later);
  let day = date.getDay();
  dateObj.year = date.getFullYear();
  dateObj.month = date.getMonth() + 1
  // dateObj.month = ((date.getMonth() + 1) < 10 ? ("0" + (date.getMonth() + 1)) : date.getMonth() + 1);
  dateObj.day = date.getDate()
  // dateObj.day = (date.getDate() < 10 ? ("0" + date.getDate()) : date.getDate());
  dateObj.week = show_day[day];
  return dateObj;
}
//获取页数
function onReachListData(page, pagenum, data, doFunction) {
  var that = page;
  var tiaoshu = data.length / pagenum;
  if (tiaoshu >= 10) {
    that.setData({
      pageNum: ++pagenum,
    });
    doFunction();
  } else {
    wx.showToast({
      title: '已加载全部',
      icon: 'none'
    })
  }
}
//获取登录信息
function getUser(msg) {
  wx.navigateTo({
    url: '/pages/index/index',
  })
}
//防抖
function throttle(fn, gapTime) {
  if (gapTime == null || gapTime == undefined) {
    gapTime = 1500
  }

  let _lastTime = null;
  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
    }
  }
}
// //获取位置信息
// function getLocation(that) {
//   wx.getLocation({
//     type: 'wgs84',
//     success: function (res) {
//       // 经纬度
//       var latitude = res.latitude
//       var longitude = res.longitude
//       var aK = that.data.aK
//       wx.request({
//         url: 'https://api.map.baidu.com/geocoder/v2/?ak=' + aK + '&location=' + latitude + ',' + longitude + '&output=json',
//         data: {},
//         header: {
//           'content-type': 'application/json'
//         },
//         success: function (res) {
//           var city = res.data.result.addressComponent.city;
//           that.setData({
//             currentCity: city
//           })
//           wx.request({
//             url: 'xxx' + city,
//             data: {},
//             header: {
//               'content-type': 'application/json'
//             },
//             success: function (res) {
//               that.setData({
//                 county: res.data,
//               })
//             },
//           })
//         }
//       })

//     },
//     fail: function () {
//       wx.showToast({
//         title: '授权失败',
//         icon: 'success',
//         duration: 1000
//       })
//     }
//   })
// }
module.exports = {
  formatTime: formatTime,
  onReachListData: onReachListData,
  getUser: getUser,
  getDates: getDates,
  throttle: throttle
}