ladder_calculate.js
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var regeneratorRuntime = require('../../../utils/runtime.js');
module.exports = {
//主要的作用，就是把阶梯促销多余的商品进行拆分，
//如果没有达成阶梯促销的要求，所有的商品都打回原价购买
fir_set_arr: function (c_item, th) {
//寻找一下
function get_num2(ite) {
var vh = c_item.goods.findIndex(function (e) {
return e.goods_id == ite.goods_id
})
if (vh > -1) return vh;
return 0;
}
//组合活动，以及组合活动从表的商品
let ladder_map = c_item.ladder_map;
let goods = c_item.goods; //一个门店中所有的商品
let tfeel = 0, cut_price = 0, offline_price = 0, offline_num = 0;
//多个活动要拿来循环一下
for (let i in ladder_map) {
let title = ""; //提示语；
//其中的一个活动
let act_item = ladder_map[i];
let ladder_list = act_item.ladder_list;
let all_num = 0; //商品数量之和
let all_price0 = 0; //商品数量之和
let aprice = 0; //达到活动条件的购买价格
let no_in_arr = []; //剩余的未加入组合购
let del_g=[];
for (var li in goods) {
if (goods[li].prom_type != 10) continue;
if (goods[li].prom_id != act_item.id) continue;
var item = goods[li];
item.goods_price = item.goods_price;
item.offline_price = item.offline_price;
item.cart_num = item.goods_num;
all_num += item.cart_num;
for (var j = 0; j < item.cart_num; j++) {
no_in_arr.push({
price: item.goods_price,
offline_price: item.offline_price,
goods_id: item.goods_id,
shop_price: item.shop_price,
item:item
})
}
del_g.push(item);
}
function sortData(a, b) {
return a.price - b.price
}
no_in_arr.sort(sortData);
//开始阶梯计算价格
var lev = 0;
for (let j in ladder_list) {
if (no_in_arr.length == 0) break;
let item_j =ladder_list[j];
var end = no_in_arr.pop();
var new_price = parseInt(item_j.discount_field) == 1 ? end.shop_price : end.price;
var account=new_price * parseFloat(item_j.discount) / 10;
aprice +=account;
//-- 单个文件新增 --
let new_g = JSON.parse(JSON.stringify(end.item));
new_g.goods_num = 1;
//如果有平摊到单品的时候，account要显示
if(!th.data.ispt_goods) new_g.account = account.toFixed(2);
new_g.ld_account = account.toFixed(2);
new_g.discount = item_j.discount;
new_g.goods_price =new_price;
new_g.ladder_list_id =item_j.id;
goods.push(new_g);
lev++;
}
let goods_map = {};
//算一下剩余的商品
if (no_in_arr.length) {
for (let ii in no_in_arr) {
let item = no_in_arr[ii];
if (item.offline_price) {
offline_price += item.price - item.offline_price;
offline_num += 1;
}
if (goods_map[item.goods_id]) {
var num = goods_map[item.goods_id];
goods_map[item.goods_id] = ++num;
} else {
goods_map[item.goods_id] = 1;
}
}
}
if (Object.keys(goods_map).length) {
//这里就开始拆分提交订单时的列表
for (let j in goods_map) {
//map中存的就是商品的数量
let num = goods_map[j];
//找到相应的商品
let idx = goods.findIndex(function (ele) {
return ele.goods_id == j;
})
//goods[idx].goods_num -= num;
let new_g = JSON.parse(JSON.stringify(goods[idx]));
new_g.goods_num = num;
new_g.prom_type = 0;
new_g.prom_id = 0;
goods.push(new_g);
//goods.splice(idx, 1);
}
}
//-- 最后剔除不要参与的数据 --
for(var h in del_g){
var it=del_g[h];
let idx = goods.findIndex(function (ele) {
return ele.goods_id == it.goods_id
})
goods.splice(idx, 1);
}
//-- 只统计是参与活动的商品 --
for (var ij in goods) {
var iter = goods[ij];
if (iter.prom_type != 10 || iter.prom_id != act_item.id) {
continue;
}
all_price0 += iter.goods_num * iter.goods_price;
}
if(!c_item.ladder_prom_goods) c_item.ladder_prom_goods={};
if(!c_item.ladder_prom_goods[act_item.id]) c_item.ladder_prom_goods[act_item.id]={};
//-- 活动的条件已经满足 --
c_item.ladder_prom_goods[act_item.id].is_has_ladder = 1;
c_item.is_has_ladder = 1;
c_item.ladder_prom_goods[act_item.id].actual_price = aprice;
c_item.ladder_prom_goods[act_item.id].cut_price = all_price0 - aprice;
tfeel += aprice;
cut_price += all_price0 - aprice;
}
c_item.ladder_all_price = tfeel;
c_item.ladder_cut_price = cut_price;
if (c_item.is_offline == 1) {
c_item.offline_price += offline_price;
c_item.offline_num += offline_num;
} else {
c_item.is_offline == 1;
c_item.offline_price = offline_price;
c_item.offline_num = offline_num;
}
},
//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
let oarr = arr.goods.filter(function (ele) {
return ele.prom_type == 10
})
if (!oarr || oarr.length == 0) return null;
//看一下有多少个不同的团购
let map = {},
dest = [];
for (let i = 0; i < oarr.length; i++) {
let ai = oarr[i];
let index = map[ai.prom_id]
if (!index) {
dest.push({
prom_id: ai.prom_id,
act: ai.act,
data: [ai]
});
map[ai.prom_id] = dest.length; //存储下标
} else {
let dj = dest[index - 1];
dj.data.push(ai);
}
}
return dest;
},
//-- 组装阶梯购的价格 --
calc_split_price: async function (c_arr, th) {
//-- 循环处理 --
for (var k in c_arr) {
var cart_item = c_arr[k]; //就是每一单的意思
var ord_goods = c_arr[k].goods; //就是每一单的从表的意思
var ladder_map = cart_item.ladder_prom_goods; //一单中所有的组合购的集合
var item_map = {};
for (let i in ladder_map) {
let item = ladder_map[i];
let prom_id = i;
//如果这个活动还没有达到要求，继续下一个计算
if (!item.is_has_ladder) continue;
//过滤出相应组合购活动的商品
let glist = ord_goods.filter(function (ele) {
return ele.prom_type == 10 && ele.prom_id == i;
})
var all_good_price = 0;
var post_gd = [];
for (let j in glist) {
let item = glist[j];
all_good_price += item.goods_price * item.goods_num;
var gitem = {
goods_id: item.goods_id,
goods_num: item.goods_num,
goods_price: item.goods_price
}
post_gd.push(gitem);
}
//要进行优惠的计算
if (all_good_price - item.actual_price) {
if (cart_item.prom_pt_json) {
cart_item.prom_pt_json.push({
"ladder_prom_id": prom_id,
"dis": (all_good_price - item.actual_price).toFixed(2),
"ispt": 0
})
} else {
cart_item.prom_pt_json = [{
"ladder_prom_id": prom_id,
"dis": (all_good_price - item.actual_price).toFixed(2),
"ispt": 0
}];
}
}
}
}
}
}