var app = getApp()
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 formatDate = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  return [year, month, day].map(formatNumber).join('-');
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}
const isTel = tel => {
  if (!(/^1\d{10}$/.test(tel))) {
    return false;
  } 
  else {
    return true;
  }
}
const setTitleBarColor = color => {
  if(color==1){
    wx.setNavigationBarColor({
      frontColor: '#ffffff',
      backgroundColor: '#ffffff'
    })
  }
  else {
    wx.setNavigationBarColor({
      frontColor: '#000000',
      backgroundColor: '#000000'
    })
  }
}
const FILE_BASE_NAME = 'tmp_base64src'; //自定义文件名

function base64src(base64data, cb) {
  const [, format, bodyData] = /data:image\/(\w+);base64,(.*)/.exec(base64data) || [];
  if (!format) {
    return (new Error('ERROR_BASE64SRC_PARSE'));
  }
  const filePath = `${wx.env.USER_DATA_PATH}/${FILE_BASE_NAME}.${format}`;
  const buffer = wx.base64ToArrayBuffer(bodyData);
  fsm.writeFile({
    filePath,
    data: buffer,
    encoding: 'binary',
    success() {
      cb(filePath);
    },
    fail() {
      return (new Error('ERROR_BASE64SRC_WRITE'));
    },
  });
};
const back = function(){
  let pages = getCurrentPages();
  if (pages.length>1){
    wx.navigateBack({
      delta: 1
    })
  }
  else {
    wx.switchTab({
      url: app.globalData.menuRoute
    })
  }
  // if(pages<=1){
  //   wx.switchTab({
  //     url: app.globalData.menuRoute
  //   })
  // }
  // else {
  //   wx.navigateBack({
  //     delta: 1
  //   })
  // }
}
const checkLocation = function(){
  return new Promise((resolve,reject)=>{
    wx.getSetting({
      success: (res) => {
        var statu = res.authSetting;
        if (!statu['scope.userLocation']) { //没授权
          wx.showModal({
            title: '提示',
            content: '需要获取您的地理位置，请确认授权',
            confirmColor: '#f16765',
            success: res => {
              if (res.confirm) {
                wx.openSetting({
                  success: data => {
                    if (data.authSetting["scope.userLocation"]) {
                      wx.getLocation({
                        type: 'gcj02',
                        success: function (res) {
                          resolve(res)
                        },
                        fail(){
                            reject()
                        }
                      })
                    }
                    else {
                      reject()
                    }
                  }
                })
              }
              else {
                reject()
              }
            },
            fail(){
              reject()
            }
          })
        } else { //已授权
            //做一些事情...
            console.log(res)
            wx.getLocation({
              type: 'gcj02',
              success: function (res) {
                resolve(res)
              },
              fail(){
                  reject()
              }
            })
        }
      }
    })
  })
}
module.exports = {
  formatTime: formatTime,
  formatNumber: formatNumber,
  isTel: isTel,
  setTitleBarColor: setTitleBarColor,
  base64src: base64src,
  back: back,
  formatDate:formatDate,
  checkLocation:checkLocation
}