'use strict'

//获取应用实例

function formatTime(date) {
  var year = date.getFullYear()
  var month = date.getMonth() + 1
  var day = date.getDate()

  var hour = date.getHours()
  var minute = date.getMinutes()
  var second = date.getSeconds()

  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

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

function getDeviceInfo(wx) {
    let res = wx.getSystemInfoSync(),
        windowWidth;

    windowWidth = res.windowWidth;
    return { windowWidth };
}

function shouldDiscardTap(currentTimeStamp, lastTimeStamp) {
  if (lastTimeStamp != 0 && currentTimeStamp - lastTimeStamp < 250) {
    return true;
  }

  return false;
}

function formatImgUrl (json) {
  json.data && json.data.map((item, index) => {
    let replaceStr = "{width}";
    let url = item.src;
    url = url.replace(new RegExp('{width}'), windowWidth * 2).replace(new RegExp('{height}'), 100).replace(new RegExp('{mode}'), '2');
    item.src = url;
    // console.log(url)
  });
  return json;
}

function getImageUrl(url, windowWidth,height){
  if(!url){
    return '';
  }
  return url.replace(new RegExp('{width}'), windowWidth *2).replace(new RegExp('{height}'), height?height:100).replace(new RegExp('{mode}'), '2');
}

// 自动识别 2倍 3倍图
function getImageUrlWithWH(image_url, image_width, image_height) {
  let app = getApp();
  const screenWidth = app.globalData.systemInfo.screenWidth;
  const pixelRatio = app.globalData.systemInfo.pixelRatio;
  const DEVICE_WIDTH_RATIO = screenWidth / 375.0;

  if (!image_url) {
    return '';
  }
  return image_url.replace(/{width}/g, parseInt(image_width * DEVICE_WIDTH_RATIO * pixelRatio)).replace(/{height}/g, parseInt(image_height * DEVICE_WIDTH_RATIO * pixelRatio)).replace('{mode}', 2);
}

function getBrandID (url) {
  let params = url.split("openby:yohobuy=")
  if (params.length == 2) {
    let jsonParam = JSON.parse(params[1])
    return jsonParam.params.brand_id;
  }
  return null;
}

function isStringEmpty(str){
  if (str===undefined || str ===null || str ===''){
    return true
  }else{
    return false
  }
  return true;
}

function getGoodDetailParam(url) {
  let params = url.split("openby:yohobuy=")
  if (params.length == 2) {
    let jsonParam = JSON.parse(params[1])
    return JSON.stringify(jsonParam.params);
  }
  return null;
}

function formatDateTime(inputTime) {
  var date = new Date();
  date.setTime(inputTime*1000);
  var y = date.getFullYear();
  var m = date.getMonth() + 1;
  m = m < 10 ? ('0' + m) : m;
  var d = date.getDate();
  d = d < 10 ? ('0' + d) : d;
  return y + '.' + m + '.'+d;
}; 

function formateTimestamp(start,end){
  var startTime = formatDateTime(start)
  var endTime = formatDateTime(end)
  return startTime+'-'+endTime
}

module.exports = {
  formatTime: formatTime,
  getDeviceInfo: getDeviceInfo,
  shouldDiscardTap,
  formatImgUrl,
  getBrandID,
  getGoodDetailParam,
  getImageUrl,
  formateTimestamp,
  getImageUrlWithWH,
  isStringEmpty,
}