叠加券优化

components/coupon/index.vue

@@ -69,6 +69,8 @@
 				value:'',
 				ts: [],
 				stacking: 0,
+				TotalDiscounts: 0,
+				money: 0,
 			};
 		},
 		mounted() {
@@ -95,6 +97,7 @@
 				}
 				
 			})
+			this.OverlayCalculation()
 			this.checkOrderCoupon()
 		},
 		methods: {
@@ -129,7 +132,7 @@
 				}else{
 					this.$emit('close', -1)
 				}
-				console.log(this.currentChosen,'-----')
+				// console.log(this.currentChosen,'-----')
 			},
 			// 不可叠加使用优惠券
 			radioChange(e){
@@ -147,6 +150,7 @@
 					this.currentChosen = [];
 					this.value = 0
 				}
+				this.OverlayCalculation()
 			},
 			// 叠加使用优惠券
 			multipleChoice(e,i){
@@ -165,6 +169,35 @@
 					let list = this.currentChosen.findIndex(x=>x==this.ts[i].id)
 					if(list==-1) this.currentChosen.push(e)
 				}
+				this.OverlayCalculation()
+			},
+			OverlayCalculation(){
+				if(this.currentChosen.length==0){
+					this.TotalDiscounts = 0
+					this.money = 0
+					this.ts.forEach(x => {
+						if(x.overlapUse&&x.err){
+							x.err = null
+						}
+					})
+					return
+				}
+				let alreadyStacked = this.ts.filter(x => {
+					return x.check
+				})
+				alreadyStacked.forEach(x => {
+					this.TotalDiscounts+=x.denomination
+					this.money = this.price-this.TotalDiscounts
+				})
+				this.ts.forEach(x => {
+					if(x.overlapUse){
+						if(!x.check&&x.denomination>this.money){
+							x.err = '订单金额不满足'
+						}else {
+							x.err = null
+						}
+					}
+				})
 			}
 		},
 	};

pages/visa/visa_Reserve.vue

@@ -653,7 +653,7 @@
 					<view style="font-size: 12px;width:1px;flex:1">请选择优惠券</view>
 					<view style="display: flex;align-items: center;">
 						<text style="color:#F20707;font-size: 12px;" @click="showCouponHandler">
-							<text style="flex: 1;" v-if="useCouponId == 0 &&couponList.length>0">{{couponList.length}}张可用优惠券</text>
+							<text style="flex: 1;" v-if="useCouponIds == 0 &&couponList.length>0">{{couponList.length}}张可用优惠券</text>
 							<text class="content" style="color:grey" v-else-if="couponList.length==0">暂无优惠券</text>
 							<text class="content" v-else :style="{ color: mainColor }">已优惠 {{currentCoupon.discountMoney}} 元</text>
 							<!-- <u-icon name="ellipsis" size="36" v-if="couponList.length > 0"></u-icon> -->
@@ -667,7 +667,7 @@
 			
 			<view class="empty-block"></view>
 			</template>
-			<coupon v-if="couponList.length > 0 && showCoupon" :list="couponList" :current="useCouponId" @close="closeCouponHandler" :current-price="realCurrentPriceInfo" :order="orderMsg"></coupon>
+			<coupon v-if="couponList.length > 0 && showCoupon" :price="price" :list="couponList" :current="useCouponIds" @close="closeCouponHandler" :current-price="realCurrentPriceInfo" :order="orderMsg"></coupon>
 			<view style="padding: 50rpx 40rpx" v-if="tips != ''">
 				<view class="big-title">
 					<text>重要提示</text>
@@ -780,7 +780,7 @@
 				GuestList: [],
 				couponList: [],
 				showCoupon: false,
-				useCouponId: 0,
+				useCouponIds: [],
 				currentCoupon: {
 					discountMoney: 0
 				},
@@ -973,18 +973,27 @@
 			},
 			closeCouponHandler(e) {
 				if (e != -1) {
-					this.useCouponId = e;
-					if(this.useCouponId){
-						this.currentCoupon = this.couponList.find(x => x.id == this.useCouponId)
-						if (this.currentCoupon.couponsType == 1) {
-							this.currentCoupon.discountMoney = this.currentCoupon.denomination
-						} else {
-							this.currentCoupon.discountMoney = (parseFloat(this.price) * (1 - parseFloat(this.currentCoupon.denomination / 10)))
-								.toFixed(2)
-						}
-					}else{
-						this.currentCoupon.discountMoney = 0
-					}
+					this.useCouponIds = e;
+					//叠加使用优惠券
+						let TotalDiscountAmount = 0
+						this.couponList.forEach(x=>{
+							let findIndex = this.useCouponIds.findIndex(y=>x.id==y)
+							if(findIndex!=-1){
+								let discountMoney = 0
+								if(x.couponsType==1){
+									discountMoney = x.denomination	
+								}else{
+									discountMoney = (parseFloat(this.price) * (1 - parseFloat(x.denomination / 10)))
+									.toFixed(2)
+								}
+								TotalDiscountAmount += discountMoney
+							}
+						})
+						if(TotalDiscountAmount)this.currentCoupon.discountMoney = TotalDiscountAmount
+						else this.currentCoupon.discountMoney = 0
+				}else{
+					this.currentCoupon.discountMoney = 0
+					this.useCouponIds = []
 				}
 				this.showCoupon = false;
 			},