'use strict'

function changeTime(date){
  return [date.getFullYear(),date.getMonth() +1,date.getDate()].map(function(item){return item > 9 ? item :'0' + item}).join('-');
}
function changeTimeMD(date) {
  return [date.getMonth() + 1, date.getDate()].join('.');
}
function changeTimeDate(date) {
  let now = new Date();
  let yesterDay = new Date(now.getTime() - 24 * 60 * 60 * 1000); 
  if (changeTime(now) === changeTime(date)){
    return '今日 ' + [changeNum(date.getHours()), changeNum(date.getMinutes())].join(':');
  } else if (changeTime(yesterDay) === changeTime(date)){
    return '昨日 ' + [changeNum(date.getHours()), changeNum(date.getMinutes())].join(':');
  }
  return [date.getMonth() + 1, date.getDate()].join('月') + ' ' + [changeNum(date.getHours()), changeNum(date.getMinutes())].join(':');
}
function changeTimeHoursAgo(date){
  let now = new Date();
  let yesterDay = new Date(now.getTime() - 24 * 60 * 60 * 1000);
  if (changeTime(now) === changeTime(date)) {
    // 计算是此刻之前几个小时
    let h = Math.floor((now.getTime() - date.getTime()) / (1000 * 60 * 60));
    if (h == 0) {
      return Math.floor((now.getTime() - date.getTime()) / (1000 * 60)) + '分钟前';
    }
    return h + '小时前';
  } else if (changeTime(yesterDay) === changeTime(date)) {
    return '昨天';
  } else if (now.getFullYear() == date.getFullYear()){
    return [date.getMonth() + 1, date.getDate()].join('月');
  }
  return [date.getFullYear(),date.getMonth() + 1, date.getDate()].join('.');
}
function changeNum(num){
  return num >9 ? num : '0' + num
}
// 计算元素宽高
function caculateQueryHeight(className){
  return new Promise((resolve,reject)=>{
    const query = wx.createSelectorQuery();
    query.select('.' + className).boundingClientRect(function (rect) {
      console.log(rect)
      resolve({
        width: rect.width,
        height: rect.height,
        left: rect.left,
        right: rect.right,
        top: rect.top,
        bottom: rect.bottom
      })
    }).exec();
  })
}
function confirmAlert(tips,title){
  return new Promise((resolve,reject)=>{
    wx.showModal({
      title: title || '提示',
      content: tips,
      cancelColor: '#999999',
      confirmColor: '#62C4A3',
      success: function (info) {
        if (info.confirm) {
          resolve(info)
        }else{
          reject()
        }
      }
    })
  })
}
function showToast(title){
  wx.showToast({
    title: title,
    icon: 'none',
    duration: 2000,
    mask: true
  })
}

module.exports = {
  changeTime,
  changeTimeMD,
  changeTimeDate,
  caculateQueryHeight,
  confirmAlert,
  changeNum,
  changeTimeHoursAgo,
  showToast
}