// pages/bargain-list/index.js
import {
    getBargainList
} from '../../../api/activity.js';
import {
    openBargainSubscribe
} from '../../../utils/SubscribeMessage.js';

const app = getApp();

Page({
    /**
     * 页面的初始数据
     */
    data: {
        bargainList: [],
        page: 0,
        limit: 20,
        loading: false,
        loadend: false,
        userInfo: {},
        navH: ''
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
        this.setData({
            navH: app.globalData.navHeight
        });
    },

    goBack: function () {
        wx.navigateBack({
            delta: 1
        })
    },

    onLoadFun: function (e) {
        this.getBargainList();
        this.setData({
            userInfo: e.detail
        })
    },

    openSubscribe: function (e) {
        let page = e.currentTarget.dataset.url;
        wx.showLoading({
            title: '正在加载',
        })
        openBargainSubscribe().then(res => {
            wx.hideLoading();
            wx.navigateTo({
                url: page,
            });
        }).catch(() => {
            wx.hideLoading();
        });
    },

    getBargainList: function () {
        var that = this;
        if (that.data.loadend) return;
        if (that.data.loading) return;
        that.setData({
            loading: true
        });
        getBargainList({
            page: that.data.page,
            limit: that.data.limit
        }).then(function (res) {
            that.setData({
                bargainList: that.data.bargainList.concat(res.data),
                page: that.data.page + 1,
                loadend: that.data.limit > res.data.length,
                loading: false
            });
        }).catch(res => {
            that.setData({
                loading: false
            });
        });
    },
    
    /**
     * 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 () {
        this.getBargainList();
    },
})