// pages/lianxi/main.js
const api = require("../../utils/request.js");
var util = require('../../utils/util.js')
Page({

  /**
   * 页面的初始数据
   */
  data: {
    questioncat:null,
    tms:[],
    ydtms:[],
    ctms:[],
    tmIndex: 0,
    answerP: false,
    isLoad:true,
  },
  radioChange: function (e) {
    var that = this
    that.data.tm_current['user_answer'] = e.detail.value
    that.data.tms[that.data.tmIndex] = that.data.tm_current
    that.showAnswer()
    if (that.data.ydtms.indexOf(that.data.tm_current.id)==-1){
      that.data.ydtms.push(that.data.tm_current.id)
    }
  },
  checkboxChange: function (e) {
    var that = this
    that.data.tm_current['user_answer'] = e.detail.value
    that.data.tms[that.data.tmIndex] = that.data.tm_current
    if (that.data.ydtms.indexOf(that.data.tm_current.id) == -1) {
      that.data.ydtms.push(that.data.tm_current.id)
    }
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    var that = this
    that.data.questioncat = options.questioncat
    try {
      var value = wx.getStorageSync('cat' + that.data.questioncat.toString())
      if (value) {
        that.data.ydtms = value
      }
    } catch (e) {}
    try {
      var value = wx.getStorageSync('ctms')
      if (value) {
        that.data.ctms = value
      }
    } catch (e) { }
    that.getTms()
    try{
      const res = wx.getSystemInfoSync()
      that.setData({
        scrollHeight:res.windowHeight-70
      })
    }catch(e){
    }
  },
  getTms: function(){
    var that = this
    var query = {
      questioncat: that.data.questioncat,
      ydtms: that.data.ydtms
    }
    api.request('question/question/exercise/', 'POST', query).then(res => {
      if (res.code == 200) {
        if (res.data.results.length==0){
          wx.showModal({
            title: '提示',
            content: '无更多新题,返回重新开始',
            showCancel: false,
            success: function (res) {
              if (res.confirm) {
                wx.navigateBack({
                })
              }
            }
          })
        }else{
          that.data.tms = that.data.tms.concat(res.data.results)
          that.showTm(that.data.tmIndex) //展示题目和答案
          if(that.data.isLoad){
            that.setData({
              tmtotal: res.data.total,
            })
            that.data.isLoad=false
          }
          
        }
        
      }
    })
  },
  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 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 () {
    try {
      wx.setStorageSync('cat' + this.data.questioncat.toString(), this.data.ydtms)
    } catch (e) { }
    try {
      wx.setStorageSync('ctms', this.data.ctms)
    } catch (e) { }
  },

  /**
   * 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 () {

  },

  showTm: function (index) {
    var that = this
    var tm_current = that.data.tms[index]
    that.setData({
      'tmIndex': index,
      'tm_current': tm_current
    })
    that.showOptions()
    if (tm_current.user_answer){
      that.showAnswer()
    }
  },
  panTi: function () {
    var that = this
    let tm_current = that.data.tm_current
    let isright = false
    if (tm_current.type == '多选') {
      if (tm_current.user_answer) {
        if (tm_current.user_answer.sort().toString() == tm_current.right.sort().toString()) {
          isright = true
        }
      }

    } else {
      isright = tm_current.right == tm_current.user_answer
    }
    if(isright == false && tm_current.user_answer != undefined){
      tm_current.dtime = util.formatTime(new Date())
      that.data.ctms.unshift(tm_current)
      if(that.data.ctms.length>40){
        that.data.ctms.length = 40
      }
    }
    return isright
  },
  showAnswer: function () {
    let isright = this.panTi()
    this.setData({
      isright: isright,
      answerP: true,
      tm_current: this.data.tm_current
    })
  },
  next: function () {
    var that = this
    var tmIndex = that.data.tmIndex + 1
    that.setData({
      tmIndex: tmIndex,
      answerP: false
    })
    if (tmIndex + 1 > that.data.tms.length) {
      that.getTms()
    } else {
      that.showTm(tmIndex)
    }

  },
  previous: function () {
    var that = this
    var tmIndex = that.data.tmIndex - 1
    that.setData({
      answerP: false
    })
    that.showTm(tmIndex)
  },
  showOptions: function () {
    let tm_current = this.data.tm_current
    let options = []
    for (let key in tm_current.options) {
      let option = {}
      option.key = key
      option.value = key + ':' + tm_current.options[key]
      if (tm_current.user_answer){
        if (key == tm_current.user_answer || tm_current.user_answer.indexOf(key)!=-1){
          option.checked = true
        }
      }else{
        option.checked = false
      }
      options.push(option)
    }
    this.setData({
      options:options
    })
  },
})