// pages/index/index.js
const WX_REG = "http://wxapp2.qmth.com.cn/"
const ZH_CN = ['一', '二', '三', '四', '五', '六', '七', '八', '九', '十',
  '十一', '十二', '十三', '十四', '十五', '十六', '十七', '十八', '十九', '二十',
  '三十一', '三十二', '三十三', '三十四', '三十五', '三十六', '三十七', '三十八', '三十九', '四十',
  '四十一', '四十二', '四十三', '四十四', '四十五', '四十六', '四十七', '四十八', '四十九', '五十'
]

const app = getApp()
const API = app.globalData.api

Page({

  /**
   * 页面的初始数据
   */
  data: {
    paper: {
      courseId: 0,
      courseName: "",
      examRecordDataId: 0,
      examStudentId: 0,
      questionMainNumber: 0,
      questionOrder: 0,
      subNumber: 0,
      isTokenInValid: false
    },
    subTitle: '',
    questionType: '', //AUDIO PIC
    enableScan: true, //录音时不允许扫描
  },

  secret: '',

  reset: function() {
    this.secret = ''
    this.setData({
      paper: null,
      subTitle: '',
      questionType: '',
      enableScan: true,
      isTokenInValid: false
    })
  },
  scan: function (e) {
    console.log(e)
    if (!this.data.enableScan) {
      return false
    }

    var hasAnswer = false //是否有未提交的答案
    var component = this.selectComponent('#audio')
    if (component != null && component.data.audio != '') {
      hasAnswer = true
    }

    if (!hasAnswer) {
      component = this.selectComponent('#pic')
      if (component != null && component.data.pictures.length > 0) {
        hasAnswer = true
      }
    }

    if (hasAnswer) {
      wx.showModal({
        title: '提示',
        content: '有未提交的答案，是否放弃',
        showCancel: true,
        cancelText: '放弃',
        cancelColor: '#FF5252',
        confirmText: '取消',
        success(res) {
          if (!res.confirm) {
            wx.reLaunch({
              url: '/pages/index/index',
            })
          }
        }
      })
      return
    }
    const that = this
    wx.scanCode({
      onlyFromCamera: true,
      scanType: ['qrCode'],
      success(res) {
        console.log("res")
        var parameter = decodeURIComponent(res.result.replace(WX_REG, ""))
        console.log('parameter::' + parameter)
        var type = that.getQueryVariable(parameter, 'transferFileType')
        var host = that.getQueryVariable(parameter, 'apiServer')
        console.log("host::" + host);
        API.initBaseUrl(host);
        parameter = parameter.replace("&apiServer=" + host, "")
        if (type == 'PIC' || type == 'AUDIO') {
          wx.setNavigationBarTitle({
            title: type == 'PIC' ? '图片上传' : '音频上传'
          })
          that.setData({
            questionType: type
          })
          // 获取试题信息
          that.secret = parameter
          console.log(that.secret)
          that.checkQrcode(that.secret, true)
        } else {
          wx.showToast({
            title: '二维码有误!',
            icon: 'none',
            duration: 2500,
            mask: true
          })
        }
      },
      fail(res) {
        console.log(res)
        console.log(res != null && res.errMsg == 'scanCode:fail cancel')
        if (res != null && res.errMsg == 'scanCode:fail cancel') {
          return
        }
        wx.showToast({
          title: '二维码读取异常!',
          icon: 'none',
          duration: 2500,
          mask: true
        })
      }
    })
  },

  onScanEnable: function(event) {
    console.log('event::onScanEnable')
    console.log(event)
    this.setData({
      enableScan: event.detail.enabled
    })
  },

  checkQrcode: function (code, fromScan) {
    if (fromScan) {
      wx.showLoading({
        title: '正在加载',
        mask: true
      })
    }

    const that = this
    try {
      API.checkQrcode(code)
        .then(function (res) {
          console.log(res)
          const title = `第${ZH_CN.length >= res.questionMainNumber ? ZH_CN[res.questionMainNumber - 1] : res.questionMainNumber}大题 第${res.subNumber}小题 `
          that.setData({
            paper: res,
            subTitle: title
          })
          if (fromScan) {
            wx.hideLoading()
            wx.showToast({
              title: '扫码成功',
              icon: 'success',
              mask: true
            })
          }
        })
        .catch(function (error) {
          console.log(error)
          wx.hideLoading()
          var errorMsg = error
          if ((errorMsg && errorMsg.indexOf('request:fail') == 0) || errorMsg == undefined) {
            errorMsg = "网络请求失败，请稍后重试"
          }
          that.showConfirmDialog(`${errorMsg}`, '确定', function () {
            console.log('callback')
            wx.reLaunch({
              url: '/pages/index/index',
            })
          })
        })
    } catch(e) {
      console.log('========+++++++++++++')
    }
    
  },

  showConfirmDialog: function (msg, confirm, callback) {
    const confirmText = confirm ? confirm : '确定'
    wx.showModal({
      title: '提示',
      content: msg,
      showCancel: false,
      confirmText: confirmText,
      success(res) {
        if (res.confirm) {
          console.log('用户点击确定')
          if (callback) {
            callback.apply()
          }
        }
      }
    })
  },

  getQueryVariable: function(url, variable) {
    var vars = url.split("&")
    for (var i = 0; i < vars.length; i++) {
      var pair = vars[i].split("=")
      if (pair[0] == variable) {
        return pair[1]
      }
    }
    return (false)
  },

  tokenValidCallback: function () {
    if (this.data.isTokenInValid) {
      return;
    }
    this.setData({
      isTokenInValid: true
    })
    this.showConfirmDialog('二维码已过期，请重新扫描题目', '确定', function () {
      console.log('callback')
      wx.reLaunch({
        url: '/pages/index/index'
      })
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function(options) {
    console.log(options)
    if (options && options.q) {
      const query = decodeURIComponent(options.q)
      /*if (query.indexOf("http") == 0) {
        var result = query.replace("//", '/').replace("//", '/').split('/')
        var baseUrl = result[0] + "//" + result[1];

        API.initBaseUrl(baseUrl);
        this.secret = query.replace(baseUrl, '').replace('/', '')
      }*/
      var type = this.getQueryVariable(decodeURIComponent(query), 'transferFileType')
      var host = this.getQueryVariable(decodeURIComponent(query), 'apiServer')
      console.log("host::" + host);
      API.initBaseUrl(host);
      this.secret = query.replace(host, '').replace('/', '')

      console.log(type)
      if (type == 'PIC' || type == 'AUDIO') {
        wx.setNavigationBarTitle({
          title: type == 'PIC' ? '图片上传' : '音频上传'
        })
        this.setData({
          questionType: type
        })
      } else {
        wx.showToast({
          title: '二维码有误!',
          icon: 'none',
          duration: 2500,
          mask: true
        })
      }
    }
    if (this.secret) {
      this.checkQrcode(this.secret, false)
    }

    API.setTokenValidCallback(this.tokenValidCallback)
  },

  /**
   * 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() {

  },

  /**
   * 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() {

  }
})