ssj_book/president/pages/borrow_car/borrow_car.js

// parents//pages/borrow_car/borrow_car.js
import { routers, viewImage, sharePage, isFn, getGlobalVal, formatDateTime } from '../../../utils/util.js'
import { GetBorrowBook, ScanningBooksTwo, InitBorrowCar, ConfirmBorrow } from '../../../utils/api.js'
const { navigateTo, redirectTo, navigateBack } = routers()
const { globalData, hasLibraryService, hasVipService } = getApp()
const { baseImgUrl, qrcodeInvalidToastText } = globalData
Page({

  /**
   * 页面的初始数据
   */
  data: {
    baseImgUrl,
    isLoaded: 0,
    isLoaded:1,
    hiddenModel: false,
    deleteModel:false,
    isDetail:false,
    pageNo: 1,
    pageSize: 5,
    detailList:[],
    borrowTime: formatDateTime(new Date())
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    options.userId = getGlobalVal('userId')
    options.libId = getGlobalVal('list').length > 0 ? getGlobalVal('list')[0].libId : ''
    options.library = getGlobalVal('library')
    options.list = getGlobalVal('list')
    options.vipId = wx.getStorageSync("studentId")
    this.setData({ options })
    const list = getGlobalVal(`presidentBorrowBook_${options.userId}_${options.libId}_${options.vipId}`) || []
    wx.setNavigationBarTitle({
      title: `借阅车`,
    })
    const { summary, title, detailsId, img } = options
    if (detailsId) {
      var summaryText=''
      if (summary.length > 30) {
        summaryText = summary.slice(0, 30) + '...'
      } else {
        summaryText ==summary
      }
      list.unshift({ summary: summaryText, title, detailsId, img })
     
      this.resetBorrowBook(list)
    } else {
      this.resetBorrowBook(list)
    }
    // this.getData(res => {
    //   this.setData({ isLoaded: 1 })
    // })
  },

  /**
   * 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 () {

  },

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

  },

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

  },
  /**
   * 提示框隐藏
   */
  allShowModel: function () {
    this.setData({ hiddenModel: false, deleteModel:false})
  },
  /**
   * 提示框打开
   */
  showModel:function(){
    this.setData({ hiddenModel: true })
  },
  /**
   * 删除打开
   */
  sureDelete:function(e){
    const { index } = e.currentTarget.dataset
    this.setData({ deleteModel: true,deleteIndex:index})
  },
  /**
  * 调用微信扫一扫之前判断可借书多少本
  */
  scanCtl: function () {
    const continuousFn = { fn: this.scanCtl, param: { ...arguments } }
    const { vipId, libId } = this.data.options
    const { list } = this.data
    InitBorrowCar({ data: { vipId, libId }, continuousFn }).then(res => {
      const { canBorrowNum, borrowNumTotal } = res.data

      if (canBorrowNum-list.length<1){
          wx.showToast({
            title: `已达上限`,
            icon: 'none'
          })
        return
      }
      if (canBorrowNum - list.length > 0) {
        this.scanFn()
      }
      this.setData({ ...res.data })
    })
  },

  /**
   * 调用微信扫一扫
   */
  scanFn: function () {
    wx.scanCode({
      success: res => {
        const url = res.result
        const detailsId = url.split('_')[1].split('.')[0]
        if (!detailsId) {
          wx.showToast({
            title: qrcodeInvalidToastText,
            icon: 'none'
          })
          return
        }
        this.scanningBooksFn(detailsId)
      }
    })
  },

  /**
   * 扫一扫借书
   */
  scanningBooksFn: function (detailsId) {
    const continuousFn = { fn: this.scanningBooksFn, param: { ...arguments } }
    const { vipId} = this.data.options
    const { list } = this.data
    ScanningBooksTwo({ data: { detailsId, vipId }, continuousFn }).then(res => {
      const { detailsId, summary, title, img } = res.data
      for (var i in list) {
        if (detailsId == list[i].detailsId) {
          wx.showToast({
            title: '此二维码已经扫过',
            icon: 'none'
          })
          return
        }
      }
      if (summary) {
        var summaryText = ''
        if (summary.length > 30) {
          summaryText = summary.slice(0, 30) + '...'
        } else {
          summaryText == summary
        }
      }
      console.log(list)
        list.unshift({ summary: summaryText, title, detailsId, img })
        this.resetBorrowBook(list)
      
    }).catch(res => {
      wx.showToast({
        title: res.msg,
        icon: 'none'
      })
    })
  },

  /**
   * 删除图书
   */
  delBookCtl: function () {
    const { list, deleteIndex } = this.data
    list.splice(deleteIndex, 1)
    this.resetBorrowBook(list)
    this.setData({ deleteModel: false })
  },

  /**
   * 重置全局被借阅的书籍
   */
  resetBorrowBook: function (e) {
    const { userId, libId, vipId, canBorrowNum } = this.data.options
    const { borromNum=0}=this.data
    // console.log(e, canBorrowNum)
    wx.setStorageSync(`presidentBorrowBook_${userId}_${libId}_${vipId}`, e)
    this.setData({ list: e, isLoaded: 1, borromNum: canBorrowNum-e.length })
  },

  /**
   * 确定借阅以上书籍
   */
  submitCtl: function () {
    const continuousFn = { fn: this.submitCtl, param: { ...arguments } }
    var that=this;
    const { list, options } = this.data
    const { vipId, libId, userId} = options
    
    if (list.length == 0) {
      wx.showToast({
        title: '请添加书籍后再借',
        icon: 'none'
      })
      return
    }
    const bookDetailsId = (res => {
      const arr = []
      for (let v of res) {
        arr.push(v['detailsId'])
      }
      return arr
    })(list)
    ConfirmBorrow({ data: { bookDetailsId, vipId }, continuousFn }).then(res => {
      const { borrowList = [] } = res.data
      const data = (res => {
        for (let i in res) {
              if (res[i].summary.length > 30) {
                res[i].summary = res[i].summary.slice(0, 30) + '...'
              } else {
                res[i].summary = res[i].summary
              }
        }
        return res
      })(borrowList)
      wx.showToast({
        title: '借阅成功',
        icon: 'none'
      })
   
      wx.removeStorageSync(`presidentBorrowBook_${userId}_${libId}_${vipId}`)
      that.setData({
        isDetail: true,
        borrowList:data,
        borrowTime: formatDateTime(new Date())
      })
      // setTimeout(() => {
      //   navigateTo({ url: 'parents/pages/borrow_success/borrow_success', paras: { list: JSON.stringify(borrowList), isSuccess: 1 }, zindex: 3 })
      // }, 800)
    })
  },
  
})