var goods_list = []
var loadingFlag = true;
var page=1;
var token = ''
$().ready(function(){
    getToken()
    $(window).scroll(function(){
        if($(window).scrollTop()>= $(document).height()-$(window).height() - 20){
            //到达底部加载数据
            if(loadingFlag){
                page ++ ;
                listGoods();
            }
        }
    });
})
//获取token
function getToken () {
    var param = '{"js_callback" : "callBackMethodName"}';
    try{
        if(navigator.userAgent.match(/(iPhone|iPod|iPad);?/i)){
                window.webkit.messageHandlers.app_h5_get_token.postMessage(param);
        }
        if(navigator.userAgent.match(/android/i)){
                obj4H5.app_h5_get_token(param);
        }
    }catch(e){
        //TODO handle the exception
        // token='3411a38f800b591905df2150e28a8f95633'
        // listGoods();
    }
    
}
function callBackMethodName (data) {//app token 回调
    var data = JSON.parse(data)
    token = data.token;
    listGoods();
}

function app_to_goodsdetail (goods_id,goods_list_index) {
    //跳转到详情页
    var param = {
        'goodsId':goods_id,
        'commissionRate':goods_list[goods_list_index].commission_rate
    }
    param = JSON.stringify(param)
    try{
        if(navigator.userAgent.match(/(iPhone|iPod|iPad);?/i)){
                window.webkit.messageHandlers.app_h5_to_goodsdetail.postMessage(param);
        }
        if(navigator.userAgent.match(/android/i)){
                obj4H5.app_h5_to_goodsdetail(param);
        }
        _czc.push(["_trackEvent",'优惠券专区','跳转详情','goods_id：' + goods_id]); //埋点
    }catch(e){
        //TODO handle the exception
    }
}

function listGoods () {
    //获取热销榜单
    loadingFlag = false;
    $("#loading").show();
    $.ajax({
        url:'/api/goods/listGoods',
        type:'post',
        dataType:'json',
        headers:{
            'token': token
        },
        data:{
            page:page,
            id:4,
            type:'module'
        },
        success:function (res){
            $("#loading").hide();
            loadingFlag = true;
           if(res.errno == 0){
            if(res.rst.data.length == 0){
                showMsg('暂无更多商品')
                return;
            }
            if(page == 1){
                goods_list=res.rst.data;
            }else{
                goods_list=goods_list.concat(res.rst.data)
            }
            var list_html = '',shopType;
            goods_list.forEach(function (item,index) {
                if(item.shop_type == 1){
                    //天猫
                    shopType = '<img src="../common/tianmao.png"/>'
                }else{
                    shopType = '<img src="../common/taobao.png"/>'
                }
                
                list_html += '<li onclick="app_to_goodsdetail(' + item.goods_id + ',' +  index + ')"><div class="goods_img"><img src="' + item.img + '"/></div><div class="goods_info"><p class="goods_title">' + item.title + '</p><div class="goods_shop"><div class="shop">'+ shopType + item.shop_title + '</span></div><span class="monthly_sale">月售：' + item.volume + '</span></div><div class="price_info"><div class="left"><div class="price">¥<span>'+item.discount_price+'</span></div><div class="quan"><em>券</em><span>'+item.coupon_price+'</span></div></div><div class="right">利润<span>'+item.commission_rate+'</span></div></div></div></li>'
            });
            $("#list").html(list_html)
           }else{
               showMsg(res.err)
           }
        },
        error:function (err){
            $("#loading").hide();
            showMsg('请稍后重试！')
        }
    })
}
//提示弹框
function showMsg(msg) {
    var msgBox = document.getElementsByClassName('alert-info')[0];
    msgBox.children[0].innerText = msg;
    msgBox.style.display="block";

    setTimeout(function() {
        msgBox.style.display="none";
    }, 1500);
}