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订单结算修改，增加限时折扣

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YeMingfei666
2025-10-24 16:13:40 +08:00
parent 5aa469a7b7
commit 26532150b5
36 changed files with 4989 additions and 1885 deletions
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323
utils/goods-utils.js
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@@ -5,19 +5,48 @@ import _ from "lodash";
* 返回商品单价
* @param goods 商品
* @param user 用户信息
* @param {Object} shopInfo
* @param {Object} shopInfo 店铺信息
* @param {boolean} limitTimeDiscount - 限时折扣
*/
export function returnGoodsPrice(goods, user, shopInfo) {
export function returnGoodsPrice(goods, user, shopInfo, limitTimeDiscount) {
if (!goods) {
return 0;
}
// 商家改价
if (goods.discount_sale_amount * 1 > 0) {
return goods.discount_sale_amount;
return goods.salePrice;
}
// 限时折扣
if (limitTimeDiscount && limitTimeDiscount.id) {
if (
limitTimeDiscount.foodType == 1 &&
limitTimeDiscount.discountPriority == "limit-time"
) {
return new BigNumber(goods.salePrice)
.times(limitTimeDiscount.discountRate / 100)
.decimalPlaces(2, BigNumber.ROUND_UP)
.toNumber();
}
const canUseFoods = limitTimeDiscount.foods.split(",");
if (
limitTimeDiscount.foodType == 2 &&
limitTimeDiscount.discountPriority == "limit-time" &&
canUseFoods.includes(`${goods.productId}`)
) {
return new BigNumber(goods.salePrice)
.times(limitTimeDiscount.discountRate / 100)
.decimalPlaces(2, BigNumber.ROUND_UP)
.toNumber();
}
}
if (shopInfo && !shopInfo.isMemberPrice) {
return goods.salePrice;
}
if (user.isVip && goods.memberPrice * 1 <= goods.salePrice * 1 && goods.memberPrice * 1 > 0) {
if (
user.isVip &&
goods.memberPrice * 1 <= goods.salePrice * 1 &&
goods.memberPrice * 1 > 0
) {
return goods.memberPrice;
}
return goods.salePrice;
@@ -63,7 +92,9 @@ export function returnCoupType(coupon) {
* @param selCoupon 已选择的优惠券列表
* @param user 用户信息
*/
export function returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user) {
export function returnCanDikouGoodsArr(args) {
const { canDikouGoodsArr, selCoupon, user, shopInfo, limitTimeDiscount } =
args;
const types = [2, 4, 6];
// 收集已抵扣商品并关联对应的优惠券类型
const goodsCouponGoods = selCoupon
@@ -92,11 +123,53 @@ export function returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user) {
}
return v;
})
.filter((v) => v.num > 0); // 过滤掉数量<=0的商品
.filter((v) => {
const canUseNum=v.num-(v.returnNum||0)
if(canUseNum <= 0||v.is_temporary==1||v.is_gift==1){
return false
}
return true
}); // 过滤掉数量<=0的商品,赠菜，临时菜
return arr;
}
/**
* 返回商品是否享用了会员价/会员折扣
* @param {*} goods
*/
function returnGoodsIsUseVipPrice(shopInfo,user,goods) {
if(goods.is_time_discount){
return false
}
if(shopInfo.isMemberPrice!=1||user.isVip!=1){
return false
}
if(shopInfo.isMemberPrice==1&&user.isVip==1){
if(goods.memberPrice<=0){
return false
}
return true
}
}
/**
* 返回可以计算抵扣金额的商品列表
*/
function returnCanCalcGoodsList(canCalcGoodsArr, coupon, shopInfo, user) {
return canCalcGoodsArr.filter((goods) => {
if (!coupon.discountShare && goods.is_time_discount) {
return false;
}
if(!coupon.vipPriceShare&& returnGoodsIsUseVipPrice(shopInfo,user,goods)){
return false;
}
return true;
});
}
/**
* 判断优惠券是否可使用，并返回不可用原因
*
@@ -111,10 +184,20 @@ export function returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user) {
* @param {Object} args.user - 用户信息对象
* @param {Object} args.selCoupon - 已经选择的优惠券信息对象
* @param {Object} args.shopInfo
* @param {boolean} args.limitTimeDiscount - 限时折扣
* @returns {Object} - { canUse: boolean, reason: string } 可用状态及不可用原因
*/
export function returnCouponCanUse(args) {
let { canDikouGoodsArr, coupon, goodsOrderPrice, user, selCoupon, shopInfo } = args;
let {
canDikouGoodsArr,
coupon,
goodsOrderPrice,
user,
selCoupon,
shopInfo,
isMemberPrice,
limitTimeDiscount,
} = args;
// 优惠券未启用
if (!coupon.use) {
return {
@@ -122,10 +205,27 @@ export function returnCouponCanUse(args) {
reason: coupon.noUseRestrictions || "不在可用时间段内",
};
}
if (
limitTimeDiscount &&
limitTimeDiscount.id &&
limitTimeDiscount.foodType == 1 &&
!coupon.discountShare
) {
return {
canUse: false,
reason: coupon.noUseRestrictions || "不可与限时折扣同享",
};
}
// 计算门槛金额
let fullAmount = goodsOrderPrice;
canDikouGoodsArr = returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user, shopInfo);
canDikouGoodsArr = returnCanDikouGoodsArr({
canDikouGoodsArr,
selCoupon,
user,
shopInfo,
limitTimeDiscount,
});
//优惠券指定门槛商品列表
let canCalcGoodsArr = [...canDikouGoodsArr];
//部分商品参与门槛计算
@@ -133,10 +233,18 @@ export function returnCouponCanUse(args) {
canCalcGoodsArr = canDikouGoodsArr.filter((v) => {
return coupon.thresholdFoods.find((food) => food.id == v.productId);
});
fullAmount = canCalcGoodsArr.reduce((pre, cur) => {
return pre + returnGoodsPrice(cur, user, shopInfo) * cur.num;
}, 0);
}
canCalcGoodsArr = returnCanCalcGoodsList(
canCalcGoodsArr,
coupon,
shopInfo,
user
);
fullAmount = canCalcGoodsArr.reduce((pre, cur) => {
return (
pre + returnGoodsPrice(cur, user, shopInfo, limitTimeDiscount) * cur.num
);
}, 0);
// 是否全部商品可用
const isDikouAll = coupon.useFoods.length === 0;
@@ -147,12 +255,12 @@ export function returnCouponCanUse(args) {
return coupon.useFoods.find((food) => food.id == v.productId);
});
}
if (user.isVip && !coupon.vipPriceShare) {
return {
canUse: false,
reason: "非会员可用",
};
}
// if (user.isVip && !coupon.vipPriceShare) {
// return {
// canUse: false,
// reason: "非会员可用",
// };
// }
if (selCoupon.length > 0 && !selCoupon[0].otherCouponShare) {
return {
canUse: false,
@@ -183,15 +291,8 @@ export function returnCouponCanUse(args) {
}
// 商品兑换券，第二件半价和买一送一判断是否有可用商品
if ([2, 4, 5].includes(coupon.type)) {
if (coupon.type == 2 && fullAmount < coupon.fullAmount) {
return {
canUse: false,
reason: `满${coupon.fullAmount}元可用，当前可参与金额${fullAmount}元`,
};
}
// 没有符合条件的商品
if (isDikouAll && canDikouGoodsArr.length === 0) {
// 没有符合条件的商品
if (isDikouAll && canDikouGoodsArr.length === 0) {
return {
canUse: false,
reason: "没有符合条件的商品",
@@ -203,6 +304,23 @@ export function returnCouponCanUse(args) {
reason: "没有符合条件的商品",
};
}
if (coupon.type == 2 ) {
if(canCalcGoodsArr.length<=0){
return {
canUse: false,
reason: "没有符合计算门槛条件的商品",
};
}
if(fullAmount < coupon.fullAmount){
return {
canUse: false,
reason: `满${coupon.fullAmount}元可用，当前可参与金额${fullAmount}元`,
};
}
}
}
//商品兑换券是否达到门槛金额
if (coupon.type == 2 && goodsOrderPrice < coupon.fullAmount) {
@@ -258,8 +376,15 @@ export function returnCouponCanUse(args) {
* @param discountNum 抵扣数量
* @param user 用户信息
* @param {Object} shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
export function calcDiscountGoodsArrPrice(discountGoodsArr, discountNum, user, shopInfo) {
export function calcDiscountGoodsArrPrice(
discountGoodsArr,
discountNum,
user,
shopInfo,
limitTimeDiscount
) {
let hasCountNum = 0;
let discountPrice = 0;
let hasDiscountGoodsArr = [];
@@ -270,7 +395,8 @@ export function calcDiscountGoodsArrPrice(discountGoodsArr, discountNum, user, s
const goods = discountGoodsArr[i];
const shengyuNum = discountNum - hasCountNum;
const num = Math.min(goods.num, shengyuNum);
discountPrice += returnGoodsPrice(goods, user, shopInfo) * num;
discountPrice +=
returnGoodsPrice(goods, user, shopInfo, limitTimeDiscount) * num;
hasCountNum += num;
hasDiscountGoodsArr.push({
@@ -293,22 +419,62 @@ export function calcDiscountGoodsArrPrice(discountGoodsArr, discountNum, user, s
* @param goodsOrderPrice 商品订单金额
* @param selCoupon 已选择的优惠券列表
* @param shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
export function returnCouponDiscount(arr, coupon, user, goodsOrderPrice, selCoupon, shopInfo) {
export function returnCouponDiscount(
arr,
coupon,
user,
goodsOrderPrice,
selCoupon,
shopInfo,
limitTimeDiscount
) {
arr = returnCanDikouGoods(arr, user, shopInfo);
const canDikouGoodsArr = returnCanDikouGoodsArr(arr, selCoupon, user);
const canDikouGoodsArr = returnCanDikouGoodsArr({
canDikouGoodsArr: arr,
selCoupon,
user,
shopInfo,
limitTimeDiscount,
});
if (coupon.type == 2) {
return returnCouponProductDiscount(canDikouGoodsArr, coupon, user, shopInfo);
return returnCouponProductDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
);
}
if (coupon.type == 6) {
const result = returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, shopInfo);
const result = returnCouponBuyOneGiveOneDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
);
return result;
}
if (coupon.type == 4) {
return returnSecoendDiscount(canDikouGoodsArr, coupon, user, shopInfo);
return returnSecoendDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
);
}
if (coupon.type == 3) {
return returnCouponZhekouDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice, selCoupon);
return returnCouponZhekouDiscount(
canDikouGoodsArr,
coupon,
user,
goodsOrderPrice,
selCoupon,
limitTimeDiscount
);
}
}
@@ -319,6 +485,7 @@ export function returnCouponDiscount(arr, coupon, user, goodsOrderPrice, selCoup
* @param user 用户信息
* @param goodsOrderPrice 商品订单金额
* @param selCoupon 已选择的优惠券列表
* @param limitTimeDiscount 限时折扣
*
*/
export function returnCouponZhekouDiscount(
@@ -326,7 +493,8 @@ export function returnCouponZhekouDiscount(
coupon,
user,
goodsOrderPrice,
selCoupon
selCoupon,
limitTimeDiscount
) {
const { discountRate, maxDiscountAmount } = coupon;
@@ -334,14 +502,20 @@ export function returnCouponZhekouDiscount(
const goodsCouponDiscount = selCoupon
.filter((v) => v.type == 2)
.reduce((prve, cur) => {
return new BigNumber(prve).plus(new BigNumber(cur.discount.discountPrice));
return new BigNumber(prve).plus(
new BigNumber(cur.discount.discountPrice)
);
}, new BigNumber(0));
// 将商品订单价格转换为BigNumber并减去优惠券折扣
const adjustedGoodsOrderPrice = new BigNumber(goodsOrderPrice).minus(goodsCouponDiscount);
const adjustedGoodsOrderPrice = new BigNumber(goodsOrderPrice).minus(
goodsCouponDiscount
);
// 计算优惠比例：(100 - 折扣率) / 100
const discountAmountRatio = new BigNumber(100).minus(discountRate).dividedBy(100);
const discountAmountRatio = new BigNumber(100)
.minus(discountRate)
.dividedBy(100);
// 计算折扣金额：调整后的商品订单金额 × 优惠比例
let discountPrice = adjustedGoodsOrderPrice
@@ -351,7 +525,8 @@ export function returnCouponZhekouDiscount(
// 应用最大折扣金额限制
if (maxDiscountAmount !== 0) {
discountPrice = discountPrice >= maxDiscountAmount ? maxDiscountAmount : discountPrice;
discountPrice =
discountPrice >= maxDiscountAmount ? maxDiscountAmount : discountPrice;
}
return {
@@ -366,8 +541,15 @@ export function returnCouponZhekouDiscount(
* @param coupon 优惠券
* @param user 用户信息
* @param shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
export function returnCouponProductDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
export function returnCouponProductDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
) {
const { useFoods, discountNum, useRule } = coupon;
//抵扣商品数组
let discountGoodsArr = [];
@@ -389,7 +571,13 @@ export function returnCouponProductDiscount(canDikouGoodsArr, coupon, user, shop
discountGoodsArr = discountSelGoodsArr.slice(0, discountNum);
}
}
const result = calcDiscountGoodsArrPrice(discountGoodsArr, discountNum, user, shopInfo);
const result = calcDiscountGoodsArrPrice(
discountGoodsArr,
discountNum,
user,
shopInfo,
limitTimeDiscount
);
return result;
}
@@ -399,8 +587,15 @@ export function returnCouponProductDiscount(canDikouGoodsArr, coupon, user, shop
* @param coupon 优惠券
* @param user 用户信息
* @param shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
function returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
function returnCouponBuyOneGiveOneDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
) {
const { useFoods, useRule } = coupon;
//抵扣商品
let discountGoods = undefined;
@@ -415,7 +610,9 @@ function returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, shopI
}
} else {
//符合抵扣条件的商品
const canUseGoods1 = canUseGoods.filter((v) => useFoods.find((food) => food.id == v.productId));
const canUseGoods1 = canUseGoods.filter((v) =>
useFoods.find((food) => food.id == v.productId)
);
if (useRule == "price_asc") {
discountGoods = canUseGoods1[canUseGoods1.length - 1];
} else {
@@ -425,7 +622,12 @@ function returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, shopI
let discountPrice = 0;
let hasDiscountGoodsArr = [];
if (discountGoods) {
discountPrice = returnGoodsPrice(discountGoods, user, shopInfo);
discountPrice = returnGoodsPrice(
discountGoods,
user,
shopInfo,
limitTimeDiscount
);
hasDiscountGoodsArr = [discountGoods];
}
return {
@@ -440,8 +642,15 @@ function returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, shopI
* @param coupon 优惠券
* @param user 用户信息
* @param shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
function returnSecoendDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
function returnSecoendDiscount(
canDikouGoodsArr,
coupon,
user,
shopInfo,
limitTimeDiscount
) {
const { useFoods, useRule } = coupon;
//抵扣商品
let discountGoods = undefined;
@@ -456,7 +665,9 @@ function returnSecoendDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
}
} else {
//符合抵扣条件的商品
const canUseGoods1 = canUseGoods.filter((v) => useFoods.find((food) => food.id == v.productId));
const canUseGoods1 = canUseGoods.filter((v) =>
useFoods.find((food) => food.id == v.productId)
);
if (useRule == "price_asc") {
discountGoods = canUseGoods1[canUseGoods1.length - 1];
} else {
@@ -466,12 +677,20 @@ function returnSecoendDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
let discountPrice = 0;
let hasDiscountGoodsArr = [];
if (discountGoods) {
discountPrice = returnGoodsPrice(discountGoods, user, shopInfo);
discountPrice = returnGoodsPrice(
discountGoods,
user,
shopInfo,
limitTimeDiscount
);
hasDiscountGoodsArr = [discountGoods];
}
//返回半价价格
return {
discountPrice: discountPrice <= 0 ? 0 : new BigNumber(discountPrice).dividedBy(2).toNumber(),
discountPrice:
discountPrice <= 0
? 0
: new BigNumber(discountPrice).dividedBy(2).toNumber(),
hasDiscountGoodsArr,
};
}
@@ -481,8 +700,9 @@ function returnSecoendDiscount(canDikouGoodsArr, coupon, user, shopInfo) {
* @param arr 商品列表
* @param user 用户信息
* @param shopInfo 店铺信息
* @param limitTimeDiscount 限时折扣
*/
export function returnCanDikouGoods(arr, user, shopInfo) {
export function returnCanDikouGoods(arr, user, shopInfo, limitTimeDiscount) {
const result = arr
.filter((v) => {
return v.is_temporary != 1 && v.is_gift != 1;
@@ -491,7 +711,10 @@ export function returnCanDikouGoods(arr, user, shopInfo) {
return v.num > 0;
})
.sort((a, b) => {
return returnGoodsPrice(b, user, shopInfo) - returnGoodsPrice(a, user, shopInfo);
return (
returnGoodsPrice(b, user, shopInfo, limitTimeDiscount) -
returnGoodsPrice(a, user, shopInfo, limitTimeDiscount)
);
});
return result;
}