// pages/login/index.js
const app = getApp();
Page({

  /**
   * 页面的初始数据
   */
  data: {
    showUnclickMask: false,
    isGoHome: false,
    isAgree: false
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {

  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    let pages = getCurrentPages();
    this.setData({
      isGoHome: pages.length == 1
    })
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    if (this.data.isLogin) {
      this.pushRoute()
      return;
    }
    let that = this;
    this.setData({
      showUnclickMask: false
    })
  },

  pushRoute() {
    let route = wx.getStorageSync('history');
    wx.removeStorageSync('history');
    if (!route || route == '/pages/login/index') {
      return wx.redirectTo({
        url: '/pages/mine/index',
      })
    }
    wx.redirectTo({
      url: route,
    })
  },

  changeLoginStatus() {
    this.setData({
      isLogin: true
    })
  },

  /**
   * 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 () {
    return {
      title: '智慧云馆'
    }
  },

  // 跳转到协议
  pushAgreement() {
    wx.navigateTo({
      url: '/pages/agreement/index',
    })
  },

  checkboxChange(e) {
    this.setData({
      isAgree: e.detail.value.length > 0
    })
  },



  // 微信一键登录
  onWechatLogin() {
    if (!this.data.isAgree) {
      wx.showToast({
        title: '请阅读并同意服务条款及隐私政策',
        icon: 'none',
        duration: 2000
      })
      return;
    }

    this.setData({ showUnclickMask: true });
    let that = this;

    // 前端获取 code 后去换取 token
    wx.login({
      success: function (r) {
        app.$api.memberLoginWX({
          code: r.code
        }).then(res => {
          if (!res.authorization) {
            that.setData({ showUnclickMask: false });
            wx.showToast({ title: '登录失败，未返回Token', icon: 'none' });
            return;
          }
          wx.setStorageSync('information', res.information);
          wx.setStorageSync('accessToken', res.authorization.accessToken);

          that.setData({ showUnclickMask: false });
          that.changeLoginStatus();
          let route = wx.getStorageSync('history');
          wx.removeStorageSync('history');
          if (!route || route == '/pages/login/index') {
            return wx.redirectTo({ url: '/pages/mine/index' })
          }
          wx.redirectTo({ url: route })
        }).catch(err => {
          that.setData({ showUnclickMask: false });
        });
      },
      fail: function (res) {
        that.setData({ showUnclickMask: false });
      }
    })
  },

  // 暂不登录，退回上一页
  skipLogin() {
    let pages = getCurrentPages();
    if (pages.length <= 1) {
      wx.redirectTo({
        url: '/pages/home/index',
      });
    } else {
      wx.navigateBack();
    }
  }
})