var util = require('../../utils/util.js');
const app=getApp();
Page({
  data: {
    couponsList:['待使用','已使用','已失效'],
    key:0,
    status: 2,  //1=已使用 2=未使用 3=过期
    text: [   ], 
    isUsedCoupon:[],  // 已使用
    unUsedCoupon: [], // 待使用
    loseCoupon: [],  // 已失效

    couponShow:false,
    limit : 6,
    offset: 0,
    check:0 // 用来判断选择的下标
    
  },
  onLoad: function (options) {
    this.getCouponsList(1)
    this.getCouponsList(2)
    this.getCouponsList(3)
    this.goTap();
  },
  //一键回到顶部
  goTap() {
    util.goTap();
  },
  //获取滚动条当前位置
  onPageScroll: function (e) {
    // console.log(e)
    if (e.scrollTop > 400) {
      this.setData({
        floorstatus: true
      });
    } else {
      this.setData({
        floorstatus: false
      });
    }
  },
  // 选择优惠券类型
  coupons(e){
    var index = e.currentTarget.dataset.index;

    var status = 0;
    console.log(index);
    if (index == 0){
      status = 2
    } else if(index == 1){
      status = 1
    }else if (index == 2) {
      status = 3
    }
    this.setData({
      offset:0,
      key:index,
      status: status
    })
  },

  // 获取优惠券列表
  getCouponsList:function(status){
    var _this = this;
    var limit = _this.data.limit
    var offset = _this.data.offset
    util.request({
      method:"POST", 
      api:"/wxapi/shopCoupon/getMyCouponInfoByStatus/"+app.shopInfo.id+"/"+status,
      data: {"limit":limit, "offset":offset},
      callback: function (data) {
      if (data.status == '200') {
        for (var i = 0; i < data.rows.length; i++){
          data.rows[i].endTimeWx = data.rows[i].endTimeWx.substring(0, 10);
        }
        if (status == 2){
          _this.setData({
            unUsedCoupon: data.rows
          })
        } else if (status == 1) {
          _this.setData({
            isUsedCoupon: data.rows
          })
        } else {
          _this.setData({
            loseCoupon: data.rows
          })
        }
      }
    }});
  },

  // 上拉加载
  onReachBottom: function () {
    var _this = this;
    var offset = _this.data.offset;
    var limit = _this.data.limit;
    var couponList = _this.data.unUsedCoupon;
    var status = _this.data.status
    if (status == 2) {
      couponList = _this.data.unUsedCoupon;
    } else if (status == 1) {
      couponList = _this.data.isUsedCoupon;
    } else {
      couponList = _this.data.loseCoupon;
    }
    _this.setData({
      offset: offset + limit
    });
    offset = _this.data.offset;

    util.request({
      method:"POST",
      api: "/wxapi/shopCoupon/getMyCouponInfoByStatus/" + status, 
      data:{ "limit": limit, "offset": offset }, 
      callback:function (data) {
      for (var i = 0; i < data.rows.length; i++) {
        data.rows[i].endTimeWx = data.rows[i].endTimeWx.substring(0, 10);
        
        couponList.push(data.rows[i])
      }


      if (status == 2) {
        _this.setData({
          unUsedCoupon: couponList
        })
      } else if (status == 1) {
        _this.setData({
          isUsedCoupon: couponList
        })
      } else {
        _this.setData({
          loseCoupon: couponList
        })
      }
   

    }});
  },




//使用优惠券
  useCoupon(e){
    var coupon = e.currentTarget.dataset.coupon;
    wx.setStorageSync("queryKey", coupon);
    wx.switchTab({
      url: '/pages/service/service2',
    });
    
  
  },










})