增加商品券选择判断限制

2024-11-11 11:17:01 +08:00
parent 71535693bb
commit aad78417b8
3 changed files with 159 additions and 7 deletions
--- a/pagesOrder/quan_util.js
+++ b/pagesOrder/quan_util.js
@@ -0,0 +1,100 @@
+export function isTui(item){
+	return  item.status=='return'||item.status=='refund'||item.status=='refunding'
+}
+
+//计算商品券优惠价格
+export function returnProductCouponPrice(coup, goodsArr, vipUser) {
+    const item = goodsArr.find(v => v.productId == coup.proId);
+    if(!item){
+        return 0
+    }
+    const memberPrice = item.memberPrice ? item.memberPrice : item.price;
+    const price = item ? (vipUser.isVip ? memberPrice : item.price) : 0;
+    return price
+
+}
+//返回新的商品列表，过滤掉退菜的，退单的商品
+export function returnNewGoodsList(arr) {
+    let goodsMap={}
+    return arr.filter(v => !isTui(v))
+}
+//根据当前购物车商品以及数量,已选券对应商品数量，判断该券是否可用
+export function returnCoupCanUse(goodsArr=[],coup,selCoupArr=[]) {
+	// if(!coup.use){
+	// 	return false
+	// }
+	const findGoods=goodsArr.filter(v=>v.productId==coup.proId)
+	if(!findGoods.length){
+		return false
+	}
+	const findGoodsTotalNumber=findGoods.reduce((prve,cur)=>{
+		return prve+cur.num*1
+	},0)
+	const selCoupNumber=selCoupArr.filter(v=>v.proId==coup.proId).reduce((prve,cur)=>{
+		return prve+cur.num*1
+	},0)
+	if(selCoupNumber>=findGoodsTotalNumber){
+		return false
+	}
+	return findGoodsTotalNumber<coup.num?false:true
+}
+//查找购物车商品根据购物车商品数据返回商品券信息（抵扣价格以及是否满足可用需求）
+export function returnProductCoupon(coup, goodsArr, vipUser) {
+    const newGoodsArr = returnNewGoodsList(goodsArr)
+    const item = newGoodsArr.find(v => v.productId == coup.proId);
+    if(!item){
+        return {...coup, discountAmount: 0,use:false}
+    }
+    const memberPrice = item.memberPrice ? item.memberPrice : item.price;
+    const price = item ? (vipUser.isVip ? memberPrice : item.price) : 0;
+	const discountAmount=(price*coup.num).toFixed(2)
+	console.log(discountAmount);
+    // const canUse=!coup.use?false:(discountAmount>0)
+    const canUse=discountAmount>0
+    return { ...coup, discountAmount: discountAmount,use:canUse}
+
+}
+/**
+ * 根据购物车商品计算商品券抵扣价格以及是否满足可用需求
+ * 1.商品券对应商品数量大于购物车对应商品数量不可用
+ * 2.未在购物车找到相关商品不可用
+ * @param {*} coupArr 
+ * @param {*} goodsArr 
+ * @param {*} vipUser 
+ * @returns 
+ */
+export function returnProductAllCoup(coupArr, goodsArr, vipUser){
+    return coupArr.map((v) => {
+        return returnProductCoupon(v, goodsArr, vipUser)
+      })
+
+}
+
+//计算商品券总优惠价格
+export function returnProductCouponAllPrice(coupArr, goodsArr, vipUser) {
+    if(coupArr.length == 0){
+        return 0;
+    }
+    return coupArr.reduce((a, b) => {
+        const price = returnProductCouponPrice(b, goodsArr, vipUser)
+        return a + price;
+    }, 0).toFixed(2);
+
+}
+//计算满减券总优惠价格
+export function returnFullReductionCouponAllPrice(coupArr) {
+    if(coupArr.length == 0){
+        return 0;
+    }
+    return coupArr.filter(v => v.type == 1).reduce((a, b) => {
+        const price = b.discountAmount
+        return a + price;
+    }, 0).toFixed(2);
+
+}
+//计算优惠券总价格
+export function returnCouponAllPrice(coupArr, goodsArr, vipUser) {
+    const poductAllprice=returnProductCouponAllPrice(coupArr, goodsArr, vipUser)
+    const pointAllPrice=returnFullReductionCouponAllPrice(coupArr)
+    return (poductAllprice*1+pointAllPrice*1).toFixed(2);
+}