zh_calculate.js
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module.exports = {
//辅助数组添加元素功能
find_in_add: function(list, ele) {
for (var i in list) {
var item = list[i];
if (item.goods_id == ele.goods_id) {
return false;
}
}
list.push(ele);
},
//辅助数组添加元素功能
find_in_remove: function(list, ele) {
for (var i in list) {
var item = list[i];
if (item.goods_id == ele.goods_id) {
list.splice(i, 1);
}
}
},
//主要是把组合购的商品分离出来
add_zhprom: function(car, a, ele) {
var point = car[a];
if (point.zh_map) {
if (point.zh_map[ele.prom_id]) {
this.find_in_add(point.zh_map[ele.prom_id].goods, ele);
} else {
point.zh_map[ele.prom_id] = {
goods: [],
act: ele.act
};
point.zh_map[ele.prom_id].goods.push(ele);
}
} else {
point.zh_map = {};
point.zh_map[ele.prom_id] = {
goods: [],
act: ele.act
};
point.zh_map[ele.prom_id].goods.push(ele);
}
},
//未选中的商品，要从中剔除
remove_zhprom: function(car, a, ele) {
var point = car[a];
if (point.zh_map) {
if (point.zh_map[ele.prom_id]) {
this.find_in_remove(point.zh_map[ele.prom_id].goods, ele);
}
}
},
//把组合购的商品价格计算出来,同时每个会员都有购买组合商品的上限！zh_b_num是已经购买了多少件
calculate_zh: function(car, a, th) {
var car_item = car[a];
var tfeel = 0,
offline_price = 0,
offline_num = 0;
var txt = "requestData[" + a + "].need_list";
//活动的列表都存储在这里面，可以快速查询
var zh_prom_goods=car_item.zh_prom_goods;
if (!car_item.zh_map || !zh_prom_goods) {
var res = {
tfeel: tfeel,
offline_price: offline_price,
offline_num: offline_num
};
th.setData({
[txt]: null
});
return res;
}
//因为可能有多个组合购的活动
for (var i in car_item.zh_map) {
var bitem = car_item.zh_map[i];
var act = bitem.act; //获取到组合购的详情
var all_num = 0; //商品数量之和
var all_price = 0;
var need_to_buy = 0;
var all_zhqty = 0; //所有商品要求起购数之和
var no_in_arr = []; //剩余的未加入组合购
var out_arr=[]; //超出活动限购的商品放入
var title =""; //提示语；
//var goods = bitem.goods;
var goods = zh_prom_goods[act.id];
for (let v3 in car_item.goods) {
car_item.goods[v3].need_downlow_num=0;
}
//寻找一下
function get_num(ite) {
for (let v1 in bitem.goods) {
var vh = bitem.goods[v1];
if (vh.goods_id == ite.goods_id) {
return vh;
}
}
return 0;
}
//寻找一下
function get_num2(ite) {
for (let v2 in car_item.goods) {
var vh = car_item.goods[v2];
if (vh.goods_id == ite.goods_id) {
return vh;
}
}
return 0;
}
for (var i in goods) {
var item = goods[i];
item.goods_price=get_num(item).goods_price;
item.offline_price=get_num(item).offline_price;
var cart_num=get_num(item).goods_num;
var zh_b_num=get_num2(item).zh_b_num;
if(!cart_num) {
if (item.zhqty) {
title="必买商品未加购，下单立享【"+act.zhprice+"元任选"+act.zhbuyqty+"件】";
need_to_buy += item.zhqty;
}
continue;
}
item.cart_num =cart_num;
//-- 当商品有购买的时候,以及有限购的时候 --
if(item.buyqty>0){
console.log(111,th.data.in_zhact_gdmap);
var cbuy=item.buyqty-zh_b_num;
var key=item.goods_id+""+act.id;
if(th.data.in_zhact_gdmap[key]){
var cbuy=item.buyqty-zh_b_num-th.data.in_zhact_gdmap[key];
}
//当可买的数量为0
if(cbuy<=0){
item.num=0;
out_arr.push({
price: item.goods_price,offline_price:item.offline_price,goods_id:item.goods_id,num:cart_num
})
}else{
if(cbuy>=cart_num) item.num =cart_num;
else{
item.num =cbuy;
out_arr.push({
price: item.goods_price,offline_price:item.offline_price,goods_id:item.goods_id,num:cart_num-cbuy
})
}
}
}else{
item.num =cart_num;
}
item.goods_price=get_num(item).goods_price;
item.offline_price=get_num(item).offline_price;
if(item.cart_num){
all_price += item.cart_num * item.goods_price;
}
if (item.num) {
all_num += item.num;
//当有起购数的控制的时候
if (item.zhqty) {
all_zhqty += item.zhqty;
if (item.num < item.zhqty) {
need_to_buy += item.zhqty - item.num;
}
if (item.num > item.zhqty) {
for (var i = 0; i < item.num - item.zhqty; i++) {
no_in_arr.push({
price: item.goods_price,offline_price:item.offline_price,goods_id:item.goods_id
})
}
}
} else {
for (var j = 0; j < item.num; j++) {
no_in_arr.push({
price: item.goods_price,offline_price:item.offline_price,goods_id:item.goods_id
})
}
}
} else {
if (item.zhqty) {
title="必买商品未加购，下单立享【"+act.zhprice+"元任选"+act.zhbuyqty+"件】";
need_to_buy += item.zhqty;
}
}
}
//当满足组合的要求：总数要满足，起购数要满足
if (all_num >= act.zhbuyqty && !need_to_buy) {
//商品的列表
for (var u in goods) {
var ite=goods[u];
if(ite.buyqty>0 && ite.num>0){
console.log(222,th.data.in_zhact_gdmap);
var key=ite.goods_id+""+act.id;
if(th.data.in_zhact_gdmap[key]){
th.data.in_zhact_gdmap[key]+=ite.num;
}else{
th.data.in_zhact_gdmap[key]=ite.num;
}
}
}
function sortData(a, b) {
return a.price - b.price
}
if(no_in_arr.length>0) no_in_arr.sort(sortData);
var aprice = act.zhprice;
if (act.zhbuyqty > all_zhqty) {
for (var n = 0; n < act.zhbuyqty-all_zhqty; n++) {
no_in_arr.pop();
}
}
//看一下剩下的数量有没有满足组合购的要求，以及要不要倍增
if (act.is_bz && no_in_arr.length >= act.zhbuyqty) {
//看一下是几倍
var be = parseInt(no_in_arr.length / act.zhbuyqty);
aprice += be * act.zhprice;
for (var m = 0; m < be * act.zhbuyqty; m++) {
no_in_arr.pop();
}
}
//算一下剩余的钱
if (no_in_arr.length) {
for (var ii in no_in_arr) {
var item = no_in_arr[ii];
var gitem=get_num2(item);
if(gitem) {
if (!gitem.need_downlow_num) {
gitem.need_downlow_num = 1;
}
else {
gitem.need_downlow_num++;
}
aprice += item.price;
if (item.offline_price) {
offline_price += gitem.goods_price - gitem.offline_price;
offline_num += 1;
}
}
}
}
//超量的部分也要计算一下
if(out_arr.length){
for (var m in out_arr) {
var item = out_arr[m];
var gitem=get_num2(item);
if(gitem) {
if (!gitem.need_downlow_num) {
gitem.need_downlow_num = item.num;
}
else {
gitem.need_downlow_num+=item.num;
}
aprice += item.price*item.num;
if (item.offline_price && th.data.sales_rules==2) {
offline_price += (gitem.goods_price - gitem.offline_price)*item.num;
offline_num += item.num;
}
}
}
}
all_price = aprice;
//-- 设置还需要购买多少件，享受活动，前段显示 --
var need_to = car_item.need_list;
var index = this.find_need_to(need_to, act);
if (index > -1) {
need_to.splice(index, 1);
th.setData({
[txt]: need_to
});
}
} else {
for (var ii in goods) {
var item = goods[ii];
var gitem=get_num2(item);
if(gitem && gitem.selected) {
gitem.need_downlow_num = gitem.goods_num;
if (item.offline_price && th.data.sales_rules==2) {
offline_price += (item.goods_price - item.offline_price) * gitem.goods_num;
offline_num += gitem.goods_num;
}
}
}
if (act.zhbuyqty - all_num > need_to_buy) {
need_to_buy = act.zhbuyqty - all_num;
}
//-- 设置还需要购买多少件，享受活动，前段显示 --
var need_to = car_item.need_list;
if (all_num <= 0) {
var index = this.find_need_to(need_to, act);
if (index > -1) {
need_to.splice(index, 1);
th.setData({
[txt]: need_to
});
}
} else {
var index = this.find_need_to(need_to, act);
if(title=='')
title = "再买" + need_to_buy + "件，下单立享【" + act.zhprice + "元任选" + act.zhbuyqty + "件】";
if (index != -1) {
need_to[index].title = title;
} else {
if (!need_to) need_to = [];
var it = {
id: act.id,
pickup_id: car_item.pickup_id,
title: title
};
need_to.push(it);
}
th.setData({
[txt]: need_to
});
}
}
tfeel += all_price;
}
console.log('nyf111');
console.log(car_item);
var res = {
tfeel: tfeel,
offline_price: offline_price,
offline_num: offline_num
};
return res;
},
find_need_to: function(list, iter) {
if (!list || list.length <= 0) return -1;
for (var i in list) {
var item = list[i];
if (item.id == iter.id) {
return i;
}
}
return -1;
},
//筛选组合购，纯粹的数组按活动id分组
find_split: function(arr) {
//过滤只有团购的商品
var oarr = arr.goods.filter(function(ele) {
return ele.prom_type == 7
})
if(!oarr || oarr.length==0) return null;
//看一下有多少个不同的团购
var map = {},dest = [];
for (var i = 0; i < oarr.length; i++) {
var ai = oarr[i];
var index=map[ai.prom_id]
if (!index) {
dest.push({
prom_id: ai.prom_id,
data: [ai]
});
map[ai.prom_id]=dest.length; //存储下标
} else {
var dj = dest[index-1];
dj.data.push(ai);
}
}
return dest;
}
}