// pages/teaching/teaching.js
import { routers, viewImage, sharePage, isFn, getGlobalVal, formatDateTime, formateNumber } from '../../utils/util.js'
import { BookList} from '../../utils/api.js'
const { navigateTo, redirectTo, navigateBack } = routers()
const { globalData, saveUserInfo, getWxloginCode, checkStatus } = getApp()
const { baseImgUrl, thumbnail } = globalData
const app = getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    pageNo:1, 
    pageSize:10,
    isTeaching:false,
    list:[
      {
        subject:'语文',
        imgUrl:'../../assets/yuwen.png',
        bookList:[]
      },
      {
        subject: '数学',
        imgUrl: '../../assets/shuxue.png',
        bookList: []
      },
      {
        subject: '英语',
        imgUrl: '../../assets/yingyu.png',
        bookList: []
      }
    ],
    teachList: [
      // {
      //   "bookId": "133b94c0-dfdb-3e70-b406-32f80922e4bb",
      //   "bookName": "黄冈作业本1",
      //   "subject": "语文",
      //   "version": 1,
      //   "versionName": "人教版"
      // },
      // {
      //   "bookId": "133b94c0-dfdb-3e70-b406-32f80922e4bb",
      //   "bookName": "黄冈作业本2",
      //   "subject": "语文",
      //   "version": 1,
      //   "versionName": "人教版"
      // },
      // {
      //   "bookId": "133b94c0-dfdb-3e70-b406-32f80922e4bb",
      //   "bookName": "黄冈作业本3",
      //   "subject": "语文",
      //   "version": 1,
      //   "versionName": "人教版"
      // },
      //  {
      //   "bookId": "133b94c0-dfdb-3e70-b406-32f80922e4bb",
      //   "bookName": "黄冈作业本4",
      //   "subject": "语文",
      //   "version": 1,
      //   "versionName": "人教版"
      // }
    ],
    bookId:'',
    subject:''
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.setData(options)
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    const obj = { navigateTo, redirectTo, navigateBack, viewImage }
    for (const i in obj) {
      this[i] = obj[i]
    }
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
   
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

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

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
    const { isTeaching } = this.data
    if (isTeaching) {
      this.setData({ pageNo: 1 })
      this.getTeachingList(res => {
        wx.stopPullDownRefresh()
      })
    }
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
    const { isAll, isTeaching } = this.data
    if (isAll) {
      return
    }
    if (isTeaching) {
      this.getTeachingList()
    }
  },

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

  },
  /**
   * 跳转
   */
  navigateCtl: app.navigateCtl,
  /**
   * 底部导航跳转
   */
  redirectCtl: app.redirectCtl,
  /**
   * 查询书名
   */
  inputCtl: function (e) {
    const { value } = e.detail
    this.setData({
      bookName: value
    })
    this.getTeachingList()
  },
  /**
   * 选择教辅
   */
  selectTeach:function(e){
    const { grade, subject } = e.currentTarget.dataset.method
    this.setData({ isTeaching: true, grade, subject })
    this.getTeachingList()
  },
  /**
  * 获取教辅
  */
  getTeachingList: function () {
    const continuousFn = { fn: this.getTeachingList, param: { ...arguments } }
    let { pageNo, pageSize, grade, subject, list = [], bookName } = this.data
    BookList({ data: { grade, bookName, subject, pageNo, pageSize }, continuousFn }).then(res => {
      if (pageNo == 1) {
        list = res.data.list
      } else {
        list = list.concat(res.data.list)
      }
      this.setData({
        teachList:list,
        pageNo: list.length == pageSize * pageNo ? pageNo + 1 : pageNo,
        isAll: list.length < pageSize
      })
      if (isFn(cb)) cb()
    }).catch(res => {
      if (isFn(cb)) cb()
    })
  },
  /**
  * 获取教辅
  */
  getTeaching: function (e) {
    const { bookId, subject, bookName} = e.currentTarget.dataset.method
    let { list = [], teachList} = this.data
    var items = { bookId, subject, bookName };
    var temp = {};
    for (var i in list) {
      if (list[i].subject === subject) {
        list[i].bookList.push(items)
      }
    }
    wx.setStorageSync('list', list)
    this.setData({ list, isTeaching: false})
  },
  /**
  * 本地获取教辅
  */
  localTeaching:function(){
    const { isAdd}=this.data;
    var that=this;
    console.log(isAdd)
    if (isAdd=="true"){
      var list =wx.getStorageSync('list');
      wx.setStorageSync('list', list)
      that.setData({ list })
    }else{
      const { list } = that.data;
      wx.setStorageSync('list', list)
      that.setData({ list })
    }
  },
  /**
  * 删除
  */
  deleteBook:function(e){
    const { index, key } = e.currentTarget.dataset;
    const  {list}=this.data;
    list[index].bookList.splice(key, 1)
    wx.setStorageSync('list', list)
    this.setData({list})
  }
  
})