text: var util = require('../../../utils/util.js');
  var api = require('../../../config/api.js');
  
  var app = getApp();
  
  Page({
    data: {
      couponList: [],
      code: '',
      status: 0,
      page: 1,
      limit: 10,
      count: 0,
      scrollTop: 0,
      showPage: false
    },
  
  
    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function(options) {
      this.getCouponList();
    },
  
    /**
     * 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() {
      wx.showNavigationBarLoading() //在标题栏中显示加载
      this.getCouponList();
      wx.hideNavigationBarLoading() //完成停止加载
      wx.stopPullDownRefresh() //停止下拉刷新
    },
  
    /**
     * 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() {
  
    },
    getCouponList: function() {
  
      let that = this;
      that.setData({
        scrollTop: 0,
        showPage: false,
        couponList: []
      });
      util.request(api.CouponMyList, {
        status: that.data.status,
        page: that.data.page,
        limit: that.data.limit
      }).then(function(res) {
        if (res.errno === 0) {
  
          that.setData({
            scrollTop: 0,
            couponList: res.data.list,
            showPage: res.data.total > that.data.limit,
            count: res.data.total
          });
        }
      });
  
    },
    bindExchange: function (e) {
      this.setData({
        code: e.detail.value
      });
    },
    clearExchange: function () {
      this.setData({
        code: ''
      });
    },
    goExchange: function() {
      if (this.data.code.length === 0) {
        util.showErrorToast("请输入兑换码");
        return;
      }
  
      let that = this;
      util.request(api.CouponExchange, {
        code: that.data.code
      }, 'POST').then(function (res) {
        if (res.errno === 0) {
          that.getCouponList();
          that.clearExchange();
          wx.showToast({
            title: "领取成功",
            duration: 2000
          })
        }
        else{
          util.showErrorToast(res.errmsg);
        }
      });
    },
    nextPage: function(event) {
      var that = this;
      if (this.data.page > that.data.count / that.data.limit) {
        return true;
      }
  
      that.setData({
        page: that.data.page + 1
      });
  
      this.getCouponList();
  
    },
    prevPage: function(event) {
      if (this.data.page <= 1) {
        return false;
      }
  
      var that = this;
      that.setData({
        page: that.data.page - 1
      });
      this.getCouponList();
    },
    switchTab: function(e) {
  
      this.setData({
        couponList: [],
        status: e.currentTarget.dataset.index,
        page: 1,
        limit: 10,
        count: 0,
        scrollTop: 0,
        showPage: false
      });
  
      this.getCouponList();
    },
  })