const app = getApp();
Page({

  /**
   * 页面的初始数据
   */
  data: {
    active: 0,
    activeName: "FavoriteBookCity",
    tabList: [
      {
        label: '图书',
        key: 0,
        linkType: 'FavoriteBookCity',
      },
      {
        label: '课程',
        key: 1,
        linkType: 'Favoriteclass',
      }
    ],
    list: [],
    //分页
    page: 1,
    limit: 18,
    pageTotalCount: 0,
    bottomLoading: false,
    isMoreData: false,
    // 返回顶部 
    isBackTop: false,
    setScrollValue: 0,
    skeletonLoding: true,
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    console.log(options);
    this.getDataList(false);
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady() {

  },

  tabBookClick(item) {
    let that = this;
    let info = this.data.tabList[item.detail.value]
    that.setData({
      skeletonLoding: true,
      active: item.detail.value,
      activeName: info.linkType,
      list: [],
      page: 1,
      bottomLoading: false,
      isMoreData: false,
    })
    that.getDataList(false);
  },
  getDataList(isReachBottom) {
    app.MG.store.getProductList({
      handelEBooK: true,
      queryType: "AppUserProductLink",
      linkType: this.data.activeName,
      paging: {
        start: this.data.page * this.data.limit - this.data.limit,
        size: this.data.limit
      },
      fields: {
        author: []
      }
    }).then((res) => {
      try {
        if (res.datas.length > 0) {
          let dataList = res.datas;
          //触底加载新数据并保留老数据
          if (isReachBottom) {
            dataList = [...this.data.list, ...dataList] //将新数据加入老数据中
          }
          this.setData({
            list: dataList,
            pageTotalCount: res.total,
            bottomLoading: false,
            isMoreData: dataList.length > 0 ? false : true,
            skeletonLoding: false,
            loading: false
          })
        } else {
          this.setData({
            skeletonLoding: false,
            loading: false
          })
        }
      } catch (error) {
        console.log(error)
      }
    })
  },
  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {
    if (this._freshing) return
    this.setData({
      // list: [],
      page: 1,
      limit: 18,
      pageTotalCount: 0,
      bottomLoading: false,
      isMoreData: false
    })
    this._freshing = true;
    this.setData({
      triggered: false,
    })
    this.getDataList(false);
    this._freshing = false
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {
    this.setData({
      bottomLoading: true,
      isMoreData: false
    })
    let bool = false;
    if (this.data.pageTotalCount > this.data.list.length) {
      bool = true;
      this.setData({
        page: this.data.page + 1,
      })
    } else {
      setTimeout(() => {
        this.setData({
          bottomLoading: false,
          isMoreData: true
        })
      }, 100)
      return false;
    }
    this.getDataList(bool);
  },

  setCoolect(itemData) {
    let that = this;
    let info = itemData.currentTarget.dataset.info;
    wx.showModal({
      title: '提示', //提示的标题
      content: '确定要取消收藏？', //提示的内容
      success: function (res) {
        if (res.confirm) {
          app.MG.store
            .delProductLink({
              productIds: [info.id],
              linkType: that.data.activeName,
            })
            .then(() => {
              wx.showToast({
                title: "收藏已取消",
                icon: 'success',
                duration: 1000,
              })
              that.getDataList(false)
            });
        } else if (res.cancel) {
          console.log('用户点击了取消')
        }
      }
    })
  },
  goBookDetails(e) {
    const { book } = e.currentTarget.dataset;
    wx.navigateTo({
      url: `/packageBookService/pages/bookServices/detail/index?id=${book.id}&name=${book.name}`,
    });
  },


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

  }
})