// pages/bookExhibitionDetails/index.js
const app = getApp()
import {
  loginInfo
} from '../../assets/js/login';
Page({

  /**
   * 页面的初始数据
   */
  data: {
    start: 1,
    loading: true,
    hidden: true,
    bookName: '',
    bookBeginDate: '',
    bookCreator: '',
    bookContent: '',
    bookImage: '',
    bookExhibitionList: [],
    navBarHeight: '',
    barHeight: '',
    totalSize: '',
    passId: '',
    isMore: null,
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    const systInfo = wx.getSystemInfoSync();
    const menu = wx.getMenuButtonBoundingClientRect(); // 胶囊信息
    const navBarHeight = (menu.top - systInfo.statusBarHeight) * 2 + menu.height; // 导航栏高度
    this.setData({
      navBarHeight: navBarHeight,
      barHeight: systInfo.statusBarHeight,
    })
    this.setData({
      passId: options.id
    })
    this.bookExhibitionGet(this.data.passId)
    this.getBookExhibitionDetails()
  },

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

  },

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

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  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() {},
  onShareTimeline() {},

  bookExhibitionGet(passId) {
    this.setData({
      loading: true,
      hidden: true,
    })
    app.MG.store.getProductDetail({
      storeInfo: 'jsek_bookFair', //商品库
      path: '*', //路径
      queryType: '*',
      productId: passId, //详情的id
      fields: {
        subtitle: [],
        content: [],
        isbn: [],
        introduction: [],
        Creator: []
      }
    }).then(res => {
      console.log(res.datas, 'res');
      this.setData({
        bookName: res.datas.name,
        bookBeginDate: res.datas.beginDate,
        bookCreator: res.datas.datas.Creator.Name,
        bookContent: res.datas.content,
        bookImage: res.datas.icon || '/static/images/bookExhibitionList/banner.png',
        loading: false,
        hidden: false,
      });
      if (res.datas.subtitle == undefined) {
        res.datas.subtitle = "";
      }
      let title = res.datas.subtitle + this.data.bookName
      wx.setNavigationBarTitle({
        title: title
      });
    })
  },
  //书展详情接口
  getBookExhibitionDetails() {
    app.MG.store.getProductList({
      path: '*',
      storeInfo: 'jsek_bookFair',
      mainProductId: this.data.passId,
      queryType: 'Related', // 查询类型： Related：查询关联商品；SubProduct: 查询子商品；
      paging: {
        start: 0,
        size: this.data.start * 6
      },
      fields: {
        author: [],
        publicationDate: [],
        isbn: [],
        content: [],
        Creator: []
      }
    }).then(res => {
      this.setData({
        bookExhibitionList: res.datas,
        totalSize: res.total,
        loading: false,
        hidden: false,
      })
    })
  },
  onBookDetails(event) {
    const item = event.currentTarget.dataset.item;
    console.log(item, 'item');
    wx.navigateTo({
      url: '/packageBookService/pages/bookServices/detail/index?id=' + item.id + '&name=' + item.name
    });
  },
  goBack() {
    wx.navigateBack();
  },
  // 触底函数
  onReachBottom() {
    if (this.data.bookExhibitionList.length < this.data.totalSize) {
      this.setData({
        isMore: true,
        start: this.data.start + 1
      })
      this.getBookExhibitionDetails()
    } else {
      this.setData({
        isMore: true,
      })
      setTimeout(() => {
        this.setData({
          isMore: false
        })
      }, 300)
    }
  },

})