修改使用优惠券逻辑

pagesOrder/pay-order/pay-order.vue

@@ -227,7 +227,7 @@
 	import editDiscount from '@/components/my-components/edit-discount.vue'
 	import editAccountPoints from './components/edit-accountPoints.vue'
 	import {
-		returnGoodsPayPriceMap,returnProCoupStartIndex ,returnProductCoupAllPrice
+		returnGoodsPayPriceMap,returnProCoupStartIndex ,returnProductCoupAllPrice,returnProductCanUseNum
 	} from '../quan_util.js'
 	//商品数量从0到n每一个对应的价格
 	let $goodsPayPriceMap={}
@@ -396,7 +396,7 @@
 		uni.$on('choose-quan', (arr) => {
 			console.log(arr);
 			const manjianCoup = arr.filter(v => v.type == 1&&v.num>=1)
-			let productCoup = arr.filter(v => v.type == 2&&v.num>=1)
+			let productCoup = arr.filter(v => v.type == 2)
 			console.log(productCoup);
 			//商品券分组
 			let coupMap={}
@@ -408,16 +408,20 @@
 					coupMap[coup.proId]=[coup]
 				}
 			}
+			console.log(coupMap);
 			for(let key in coupMap){
 				const arr=coupMap[key]
 				for(let i in arr){
 					const coup=arr[i]
 					const proCoupStartIndex=returnProCoupStartIndex(arr,i)
-					const num=Math.min($goodsPayPriceMap[coup.proId].length,coup.num)
+					console.log(proCoupStartIndex);
+					const coupUseNum=returnProductCanUseNum($goodsPayPriceMap[coup.proId],proCoupStartIndex,coup.num)
+					const num=Math.min($goodsPayPriceMap[coup.proId].length,coupUseNum)
 					coup.num=num
 					coup.discountAmount=returnProductCoupAllPrice($goodsPayPriceMap[coup.proId],proCoupStartIndex,num).toFixed(2)
 				}
 			}
+			productCoup=productCoup.filter(v=>v.num>=1)
 			console.log(productCoup);
 			pays.quan = [...manjianCoup, ...productCoup]
 		})

pagesOrder/quan/quan.vue

@@ -21,7 +21,8 @@
 							</view>
 							<view class=" u-m-t-20 u-flex">
 								<view>有效期:</view>
-								<view class="u-font-24 u-m-l-6"> {{dayjs(item.endTime).format('YYYY-MM-DD HH:mm:ss') }}</view>
+								<view class="u-font-24 u-m-l-6"> {{dayjs(item.endTime).format('YYYY-MM-DD HH:mm:ss') }}
+								</view>
 							</view>
 							<view class="u-m-t-10 color-999 u-font-24">
 								{{ formatStr(item.useRestrictions)}}
@@ -65,7 +66,8 @@
 							</view>
 							<view class=" u-m-t-14 u-flex">
 								<view>有效期:</view>
-								<view class="u-font-24 u-m-l-6"> {{dayjs(item.endTime).format('YYYY-MM-DD HH:mm:ss') }}</view>
+								<view class="u-font-24 u-m-l-6"> {{dayjs(item.endTime).format('YYYY-MM-DD HH:mm:ss') }}
+								</view>
 							</view>
 							<view class="u-m-t-10 color-999 u-font-24">
 								{{ formatStr(item.useRestrictions)}}
@@ -92,7 +94,7 @@
 
 		<view :style="{height:safebottomHeight+'px'}"></view>
 		<view class="fixed-b   bottom safe-bottom border-top">
-			
+
 			<view class="u-m-b-32 u-flex u-row-between u-p-t-10">
 				<view class="u-flex">
 					<text>抵扣金额：</text>
@@ -103,7 +105,8 @@
 					<text>支付金额：</text>
 					<text class="color-red">￥</text>
 					<text class="color-red">{{payPrice }}</text>
-					<view class="u-absolute u-flex u-row-between" style="bottom: 100%;right: 0;" v-if="payPrice*1!=option.orderPrice*1">
+					<view class="u-absolute u-flex u-row-between" style="bottom: 100%;right: 0;"
+						v-if="payPrice*1!=option.orderPrice*1">
 						<view class="u-flex line-th color-999">
 							<text class="">￥</text>
 							<text class="">{{option.orderPrice}}</text>
@@ -229,13 +232,18 @@
 		if (!item.use) {
 			return
 		}
-		console.log();
 		if (myQuan.fullReductionCouponSel.id && !item.checked) {
 			const goodsQuan = myQuan.res.productCoupon.filter(v => v.checked)
 			const fullReductionCoupon = myQuan.fullReductionCouponSel.id ? [myQuan.fullReductionCouponSel] : []
 			let coupArr = [...goodsQuan, item]
 			const payPrice = option.orderPrice - returnCouponAllPrice(coupArr, canDikouGoodsArr, user.value)
-			console.log(payPrice);
+			if (payPrice<=0) {
+				modal.content = '选择该商品券后支付金额将为0，继续选择将取消选择的满减券'
+				modal.cancelText = '取消'
+				modal.confirmText = '继续选择'
+				setModalShow('clear', true, item)
+				return
+			}
 			if (myQuan.fullReductionCouponSel.fullAmount > payPrice) {
 				modal.content = '选择该商品券后将不满足选择抵扣券的最低满减需求，继续选择将取消选择的满减券'
 				modal.cancelText = '取消'
@@ -247,11 +255,18 @@
 
 		item.checked = !item.checked
 		const CheckedArr = myQuan.res.productCoupon.filter(v => v.checked)
+		if (CheckedArr.length <= 0) {
+			return myQuan.res.productCoupon.map(v => {
+				v.use = true
+			})
+		}
 		const noCheckedArr = myQuan.res.productCoupon.filter(v => !v.checked)
 		noCheckedArr.map(v => {
 			console.log(returnCoupCanUse(canDikouGoodsArr, v, CheckedArr));
 			v.use = returnCoupCanUse(canDikouGoodsArr, v, CheckedArr)
 		})
+		
+		
 	}
 
 	function changeFullReductionCouponSel(item) {
@@ -263,10 +278,11 @@
 			myQuan.fullReductionCouponSel = {
 				id: ''
 			}
-		}else{
+		} else {
 			myQuan.fullReductionCouponSel = item
 		}
-		 myQuan.res.fullReductionCoupon=returnCanUseFullReductionCoupon($fullReductionCoupon, payPrice.value, myQuan.fullReductionCouponSel)
+		myQuan.res.fullReductionCoupon = returnCanUseFullReductionCoupon($fullReductionCoupon, payPrice.value, myQuan
+			.fullReductionCouponSel)
 	}
 
 	function formatStr(str) {
@@ -316,7 +332,7 @@
 	const option = reactive({
 		orderId: '',
 		memberId: '',
-		orderPrice:0
+		orderPrice: 0
 	})
 
 	function toEmitChooseQuan(item) {
@@ -339,13 +355,14 @@
 		let coupArr = [...fullReductionCoupon, ...goodsQuan]
 		return returnCouponAllPrice(coupArr, canDikouGoodsArr, user.value)
 	})
-	const payPrice=computed(()=>{
+	const payPrice = computed(() => {
-		const pay=	option.orderPrice-discountAmount.value
+		const pay = option.orderPrice - discountAmount.value
-		return (pay<0?0:pay).toFixed(2)
+		return (pay < 0 ? 0 : pay).toFixed(2)
 	})
 	watch(() => myQuan.types.sel, (newval) => {
 		if (newval == 0) {
-			myQuan.res.fullReductionCoupon = returnCanUseFullReductionCoupon($fullReductionCoupon, payPrice.value, myQuan.fullReductionCouponSel)
+			myQuan.res.fullReductionCoupon = returnCanUseFullReductionCoupon($fullReductionCoupon, payPrice.value,
+				myQuan.fullReductionCouponSel)
 		}
 		if (newval == 1) {
 

pagesOrder/quan_util.js

@@ -40,7 +40,8 @@ export function returnCoupCanUse(goodsArr = [], coup, selCoupArr = []) {
 	if (selCoupNumber >= findGoodsTotalNumber) {
 		return false
 	}
-	return findGoodsTotalNumber < (coup.num + selCoupNumber) ? false : true
+	console.log(selCoupNumber,findGoodsTotalNumber);
+	return findGoodsTotalNumber < selCoupNumber ? 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, selCoupArr = []) {
@@ -101,6 +102,23 @@ export function returnProductCoupAllPrice(productPriceArr,startIndex,num){
 		return prve+curPrice
 	},0)
 }
+
+//返回商品券可抵扣的商品数量
+export function returnProductCanUseNum(productPriceArr,startIndex,num){
+	console.log(productPriceArr);
+	console.log(num);
+	let n=0;
+	for(let i=0;i<num;i++){
+		if(productPriceArr[startIndex*1+i]){
+			n+=1
+			console.log(n);
+		}else{
+			break
+		}
+	}
+	return  n 
+}
+
 //返回同类商品券在同类商品价格数组里的开始位置
 export function returnProCoupStartIndex(coupArr,index){
 	return  coupArr.slice(0,index).reduce((prve,cur)=>{
@@ -201,6 +219,12 @@ export function returnCanUseFullReductionCoupon(coupArr, payPrice, selCoup) {
 			return v
 		}
 		const isfullAmount = payPrice >= v.fullAmount * 1
+		if(payPrice<=0){
+			return {
+				...v,
+				use: false
+			}
+		}
 		return {
 			...v,
 			use: v.use && isfullAmount