// pages/home/qrcode/index.js
const request = require('../../../utils/request') //导入模块
const util = require('../../../utils/util')
const app = getApp()

Page({
  /**
   * 页面的初始数据
   */
  data: {
    fgColor: 'black',
    userInfo: null,
    avatarUrl: null,
    screenBrightness: ''
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.fetchUserInfo()
    var that = this
    // 获取屏幕亮度
    wx.getScreenBrightness({
      success: function (res) {
        that.setData({
          screenBrightness: res.value
        })
      }
    })
    //设置屏幕亮度
    wx.setScreenBrightness({
      value: 1,    //屏幕亮度值，范围 0~1，0 最暗，1 最亮
    })
  },

  fetchUserInfo: function () {
    // /user/userInfo 获取用户信息
    request.get('/user-centre/front/customer/myInfo').then(result => {
      app.globalData.userInfo = result.data
      if (!this.data.avatarUrl) {
        this.setData({
          avatarUrl: util.isEmpty(app.globalData.userInfo.avatar) ? '/assets/image/ygImg.png' : app.globalData.userInfo.avatar,
          userInfo: app.globalData.userInfo,
          value: app.globalData.userInfo.userId,
          userName: app.globalData.userInfo.userName.substring(0, 14)
        })
      } else {
        this.setData({
          userInfo: app.globalData.userInfo,
          value: app.globalData.userInfo.userId,
          userName: app.globalData.userInfo.userName.substring(0, 14)
        })
      }
    }).catch((e) => {

    })
  },

  previewImage: function() {
    // 在自定义组件下，当前组件实例的 this，以操作组件内 <canvas> 组件
    const that = this.selectComponent('#qrcode')
    wx.canvasToTempFilePath({
      canvasId: 'wux-qrcode',
      success: (res) => {
        wx.previewImage({
          urls: [res.tempFilePath]
        })
      }
    }, that)
  },
  toCardInfo: function(){
    wx.navigateTo({
      url: '/pages/home/instructions/index'
    })
  },
  // 监听页面卸载
  onUnload: function () {
    //设置屏幕亮度为原来亮度
    wx.setScreenBrightness({
      value: this.data.screenBrightness,
    })
  }

})