// pages/bookExhibitionList/index.js
import Toast from 'tdesign-miniprogram/toast/index';

const app = getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    loading: true,
    hidden: true,
    totalSize: '',
    start: 0,
    isMore: null,
    keynoteDisabled: true,
    value: '',
    keyword: '',
    nameSort: null,
    total: null,
    page: {
      start: 0,
      size: 16
    },
    keynoteValue: null,
    filteredItems: [],
    newValue: null,
    bookExhibitionList: [],
    sorter: {
      value: 'default',
    },
    product: {
      value: '*',
      options: [{
          value: '*',
          label: '总分类',
        },
        {
          value: 'jsek_bFHigherEducation',
          //重点项目
          price: 'jsek_higherEducation',
          label: '高等教育',
        },
        {
          value: 'jsek_bFVocationalEducation',
          //重点项目
          price: 'jsek_vocationalEducation',
          label: '职业教育',
        },
        {
          value: 'jsek_bFTeacherEducation',
          //重点项目
          price: 'jsek_teacherEducation',
          label: '教师教育',
        },
      ],
    },
    multipleSelect: {
      value: [],
      options: [],
    },
    navBarHeight: '',
    barHeight: '',
    windowHeight: '',
    sorter: {
      value: 'timeAsc',
      options: [{
          value: 'nameAsc',
          label: '名称正序',
        },
        {
          value: 'nameDesc',
          label: '名称倒序',
        },
        {
          value: 'timeAsc',
          label: '出版时间正序',
        },
        {
          value: 'timeDesc',
          label: '出版时间倒序',
        },
      ],
    },
  },



  /**
   * 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,
    })

    // 单列选择器选项
    const singleSelectOptions = this.data.filteredItems.map(item => ({
      label: item.name,
      value: item.value,
      disabled: false,
    }))

    if (this.data.filteredItems = []) {

      // singleSelectOptions.push({
      //   label: '暂无数据',
      //   value: 'disabled',
      //   disabled: true,
      // });
    } else {
      console.log(7889);
    }






    // 更新数据
    this.setData({
      'multipleSelect.options': singleSelectOptions,
    });


    // 
  },

  /**
   * 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() {
    this.bookExhibitionGet()
    this.keyProjectsGet()

  },

  /**
   * 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() {

  },
  // onPullDownRefresh() {
  //   this.data.page.size = 16 //更改显示的值
  //   this.bookExhibitionGet(); // 调用方法加载更多数据
  // },

  onScrollToLower() {

    if (this.data.bookExhibitionList.length < this.data.totalSize) {
      this.setData({
        isMore: true,
        start: this.data.start + 1
      })
      this.bookExhibitionGet()
    } else {
      this.setData({
        isMore: true,
      })
      setTimeout(() => {
        this.setData({
          isMore: false
        })

      }, 300)
    }
  },
  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {

    if (this.data.page.size >= this.data.total) {

      Toast({
        context: this,
        selector: '#t-toast',
        message: '没有更多了',
        direction: 'column',
        duration: 1000,
        preventScrollThrough: true,
        icon: 'poweroff',
      });
    } else {
      // const currentPage = this.data.page.start + 1; // 获取当前页数并加1
      const newSize = this.data.page.size + 10; // 原来的基础上加10
      this.setData({
        // 'page.start': currentPage,
        'page.size': newSize
      });
      // this.bookExhibitionGet(); // 调用方法加载更多数据



    }
  },



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

  },
  // 图片数据的接口
  bookExhibitionGet(newValue) {
    wx.showLoading({
      title: '加载中...',
    })
    let searchObj = {
      'Name*': this.data.keyword,
      '||subtitle*': this.data.keyword
    }

    let sort = {};

    const sortOptions = {
      '*': {
        CreateDate: 'Asc'
      },
      'nameAsc': {
        Name: 'Asc'
      },
      'nameDesc': {
        Name: 'Desc'
      },
      'timeAsc': {
        CreateDate: 'Asc'
      },
      'timeDesc': {
        CreateDate: 'Desc'
      }
    };

    sort = sortOptions[this.data.product.value] || {};



    app.MG.store.getProductList({
      storeInfo: 'jsek_bookFair',
      path: newValue,
      queryType: '*',
      fields: {
        jsek_link: [],
        subtitle: [],
        'bookClassification*': this.data.keynoteValue || [],
        ...searchObj
      },
      paging: {
        start: '0',
        size: this.data.start * 10
      },
      sort: sort,
      // coverSize: {
      //   width: 100
      // },
    }).then(res => {
      res.datas.forEach((item) => {
        if (item.subtitle == undefined) {
          item.subtitle = ''
        }
        item.subtitleName = item.subtitle + item.name
      })

      this.data.total = res.total

      // list.push(res.datas)



      if (res.datas.length == 0) {
        this.setData({
          keynoteDisabled: true
        })
      }

      const list = [...res.datas]

      this.setData({
        bookExhibitionList: list,
        totalSize: res.total
      })



      //取消
      wx.hideLoading()


      this.setData({
        loading: false,
        hidden: false,
      })
    })

  },
  //重点项目接口
  keyProjectsGet(newPrice) {

    this.setData({
      loading: true,
      hidden: true,
    })

    let parms = {
      refCodes: ['bookClassification']
    }
    app.MG.store.getProductTypeField(parms).then(res => {
      const checkData = JSON.parse(res[0].config)
      checkData.option.forEach(item => {
        if (newPrice == item.value) {
          this.setData({
            filteredItems: item.child || [] // 如果存在子项则赋值，否则赋值为空数组
          });

        }
      })

      this.onLoad();

      this.setData({
        loading: false,
        hidden: false,
      })
    })
  },




  // 总分类
  // 总分类
  onChange(e) {
    this.data.page.size = 16 //更改显示的值
    const newValue = e.detail.value;
    const selectedOption = this.data.product.options.find(option => option.value === newValue);
    const newPrice = selectedOption ? selectedOption.price : null;


    // const bookExhibitionListsubsidiary = []
    // this.setData({
    //   bookExhibitionListsubsidiary: this.data.bookExhibitionList
    // })


    if (newPrice) {
      this.setData({
        keynoteDisabled: false
      })
    }
    if (!newPrice) {
      this.setData({
        keynoteDisabled: true
      })
    }

    this.setData({
      'product.value': newValue,
      'product.price': newPrice, // 将选中的 price 值保存在数据中
    });
    this.bookExhibitionGet(newValue);
    this.keyProjectsGet(newPrice);
    // 调用更新页面数据的函数，传入新的 value 和 price 值

    if (this.data.keynoteValue) {
      //如果有数据就清空并刷新页面
      this.data.keynoteValue = []
      this.bookExhibitionGet(newValue)
      this.onLoad()
    }






    // e.stopImmediatePropagation()

  },

  // 重点项目
  handleMultipleSelect(e) {
    this.setData({
      'multipleSelect.value': e.detail.value,
    });
  },
  handleConfirm(event) {
    const {
      value
    } = event.detail;
    // 确认操作的处理逻辑


    this.data.keynoteValue = value
    this.bookExhibitionGet()
  },


  handleReset(e) {

    // 重置操作的处理逻辑
    this.data.keynoteValue = []
    this.bookExhibitionGet()
  },
  onSwapRight() {
    if (!this.data.nameSort) {
      this.setData({
        nameSort: 'Desc',
      });
    } else if (this.data.nameSort == 'Desc') {
      this.setData({
        nameSort: 'Asc',
      });
    } else if (this.data.nameSort == 'Asc') {
      this.setData({
        nameSort: '',
      });
    }

    this.bookExhibitionGet()

  },
  onSwapLeft() {
    this.data.nameSort = 'Desc'
    this.bookExhibitionGet()
  },
  onBookExhibitionDetails: function (event) {

    const item = event.currentTarget.dataset.item;

    wx.navigateTo({
      url: '/pages/bookExhibitionDetails/index?id=' + item.id + '&bookName=' + item.name + '&subtitleName=' + item.subtitleName // 假设跳转到详情页面，并传递了id参数
    });
  },

  // 搜索框
  onSearchSubmit(e) {
    this.setData({
      keyword: e.detail.value
    })

    this.bookExhibitionGet()
  },
  goBack() {
    wx.navigateBack();
  },
  onSort(e) {
    this.setData({
      'product.value': e.detail.value,
    });

    this.bookExhibitionGet()
  },
  onOpend() {

  }
})