// pages/download/index.js
const { HYEventBus } = require('hy-event-store')
const eventBus = new HYEventBus()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    bottomLift: '',
    downloadList: [],
    checkedAll: false,
    showParam: false,
    takeQrcode: true
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    var app = getApp().globalData
    this.setData({
      bottomLift: app.bottomLift
    })
  },
  onShow() {
    const downloadList = wx.getStorageSync('downloadList') || []
    let temp = downloadList.map(i => {
      // paddingStatus： 0未下载1正在下载2等待下载3下载完成
      return {
        url: i,
        paddingStatus: 0,
        checked: false
      }
    })
    this.setData({ downloadList: temp })
    setTimeout(() => {
      wx.setStorageSync('downloadList', [])
    },500)
  },
  openParam() {
    const downloadList = this.data.downloadList.filter(i => i.checked)
    if(downloadList.length === 0) return wx.showToast({title: '请先选择要下载的海报', icon: 'none'})
    this.setData({ showParam: true })
  },
  onClose() {
    this.setData({ showParam: false })
  },
  downCheck(e) {
    const takeQrcode = e.currentTarget.dataset.flag
    console.log('takeQrcode', takeQrcode);
    this.setData({ takeQrcode })
  },
  subDownload() {
    const downloadList = this.data.downloadList
    downloadList.forEach(item => {
      if(item.checked){
        
      }
    })

    this.setData({ showParam: false })
  },
  itemCheck(e) {
    const i = e.currentTarget.dataset.i
    const { downloadList, checkedAll } = this.data
    let count = 0
    downloadList.forEach((item, index) => {
      if(index === i){
        item.checked = !item.checked
      }
      if(item.checked) {
        count ++
      }
    })
    this.setData({ checkedAll: count == downloadList.length,  downloadList})
  },
  allCheck() {
    const { downloadList, checkedAll } = this.data
    downloadList.forEach(item => {
      item.checked = !checkedAll
    })
    this.setData({ checkedAll: !checkedAll, downloadList })
  },
  onHide() {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {

  }
})