Coupon calculation refined

rc-busness/pages/personal/settlement.vue

@@ -93,7 +93,7 @@
 					<em>{{ discountAmount }}</em>
 				</div>
             <i>合计金额:</i>
-            <em>{{ discountedSumPrice }}</em>
+            <em>{{ finalAmount }}</em>
           </div>
           <div style="font-weight: bold">
             <span @click="preJiesuan()">提交订单</span>
@@ -252,7 +252,8 @@ export default {
         payment: "￥0.00 ",
       },
 	  discountAmount:0,
-	  discountedItemIndex:undefined,
+	  finalAmount:0,
+	  discountedProductCode:undefined,
     };
   },
   computed: {
@@ -262,94 +263,39 @@ export default {
 			}, 0);
 	},
     // 折扣计算
-    discountedSumPrice() {
-		let total = 0;
-		if(this.curCoupon.couponId) {
-			//Coupon Calculation
-			let couponUsed=false;
-			let tmpCounter = 0 ;
-			this.discountedItemIndex = 0;
-			for(let itemInCart of this.goldmedal) {
-				if((!this.curCoupon.productCodes || this.curCoupon.productCodes.indexOf(itemInCart.productCode)>-1) && !couponUsed) {
-					if(this.curCoupon.minQuantity && this.curCoupon.minQuantity>itemInCart.buyCount) {
-						//Check minQuantity
-						total+=(itemInCart.buyCount * itemInCart.productPrice);
-					} else if(this.curCoupon.minPrice && this.curCoupon.minPrice > (itemInCart.buyCount * itemInCart.productPrice)) {
-						//Check minPrice
-						total+=(itemInCart.buyCount * itemInCart.productPrice);
-					} else {
-						//Into coupon discount calculation
-						switch(this.curCoupon.couponTypeId) {
-							case 1: //Amount deduct
-								total = total + (itemInCart.productPrice * itemInCart.buyCount - this.curCoupon.couponAmount);
-								this.discountAmount = this.curCoupon.couponAmount;
-								this.discountedItemIndex = tmpCounter;
-								couponUsed=true;
-								break;
-							case 2: //Amount deduct with minPrice restriction
-							case 6:
-								total = total + (itemInCart.productPrice * itemInCart.buyCount) - this.curCoupon.couponAmount;
-								this.discountAmount = this.curCoupon.couponAmount;
-								this.discountedItemIndex = tmpCounter;
-								couponUsed=true;
-								break;
-							case 3: //Limited product % discount
-							case 4: //% discount
-								debugger;
-								total = total + (itemInCart.productPrice * itemInCart.buyCount) * this.curCoupon.discount;
-								this.discountAmount = (itemInCart.productPrice * itemInCart.buyCount) * ( 1 - this.curCoupon.discount);
-								this.discountedItemIndex = tmpCounter;
-								couponUsed=true;
-								break;
-							default:
-								total += itemInCart.productPrice * itemInCart.buyCount;
-								break;
-						}
-						//Into coupon discount calculation end
-					}
-				} else {
-					total += itemInCart.productPrice * itemInCart.buyCount;
-				}
-				tmpCounter++;
-			}
-		} else {
-			//Normal Calculation
-			total=this.goldmedal.reduce((pre, cur) => {
-				return pre + cur.buyCount * cur.productPrice;
-				}, 0);
-		}
-		if(this.discountAmount)
-			this.discountAmount = this.discountAmount.toFixed(2);
-		if(!total)
-			total=0;
-		total = total.toFixed(2);
-		return total;
-    },
   },
   methods: {
 	...mapMutations(["checkIsLogin"]),
+	discountedSumPrice() {
+		let total = 0;
+		if(this.curCoupon.productCodes)
+			this.finalAmount = this.qualifiedProductDiscount();
+		else
+			this.finalAmount = this.wholeOrderDiscount();
+		this.finalAmount = parseFloat(this.finalAmount).toFixed(2);
+		this.discountAmount = parseFloat(this.discountAmount).toFixed(2);
+	},
 	wholeOrderDiscount(){
 		this.discountedItemIndex = 0;
-		if(this.curCoupon.minPrice && this.curCoupon.minPrice > this.sumPrice) {
+		if(this.curCoupon.minPrice && this.curCoupon.minPrice < this.sumPrice) {
 			if(this.curCoupon.couponAmount && this.curCoupon.couponAmount>0) {
-				this.discountAmount = this.curCoupon.discount;
+				this.discountAmount = this.curCoupon.couponAmount;
 				return this.sumPrice - this.curCoupon.couponAmount;
 			} else if(this.curCoupon.discount && this.curCoupon.discount>0) {
 				this.discountAmount = this.sumPrice*this.curCoupon.discount;
 				return this.sumPrice * (1-this.curCoupon.discount);
 			}
+		} else {
+			return this.sumPrice;
 		}
 	},
 	qualifiedProductDiscount(){
-		//TODO
 		this.discountedItemIndex = 0;
-		let tmpCounter = 0 ;
+		let total = 0;
-		
+		let couponUsed = false;
-		//Sort items by items amount
+		let tmpShoppingCartList = this.arrSort(this.goldmedal);
-		
+
-		//Sort items by items amount end
+		for(let itemInCart of tmpShoppingCartList) {
-		
-		for(let itemInCart of this.goldmedal) {
 			if((!this.curCoupon.productCodes || this.curCoupon.productCodes.indexOf(itemInCart.productCode)>-1) && !couponUsed) {
 				if(this.curCoupon.minQuantity && this.curCoupon.minQuantity>itemInCart.buyCount) {
 					//Check minQuantity
@@ -363,21 +309,21 @@ export default {
 						case 1: //Amount deduct
 							total = total + (itemInCart.productPrice * itemInCart.buyCount - this.curCoupon.couponAmount);
 							this.discountAmount = this.curCoupon.couponAmount;
-							this.discountedItemIndex = tmpCounter;
+							this.discountedProductCode = itemInCart.productCode;
 							couponUsed=true;
 							break;
 						case 2: //Amount deduct with minPrice restriction
 						case 6:
 							total = total + (itemInCart.productPrice * itemInCart.buyCount) - this.curCoupon.couponAmount;
 							this.discountAmount = this.curCoupon.couponAmount;
-							this.discountedItemIndex = tmpCounter;
+							this.discountedProductCode = itemInCart.productCode;
 							couponUsed=true;
 							break;
 						case 3: //Limited product % discount
 						case 4: //% discount
 							total = total + (itemInCart.productPrice * itemInCart.buyCount) * this.curCoupon.discount;
 							this.discountAmount = (itemInCart.productPrice * itemInCart.buyCount) * ( 1 - this.curCoupon.discount);
-							this.discountedItemIndex = tmpCounter;
+							this.discountedProductCode = itemInCart.productCode;
 							couponUsed=true;
 							break;
 						default:
@@ -389,8 +335,21 @@ export default {
 			} else {
 				total += itemInCart.productPrice * itemInCart.buyCount;
 			}
-			tmpCounter++;
 		}
+		return total;
+	},
+	arrSort(arr) {
+		let userarr=[]
+		let a=[];
+		for(let i in arr){
+			arr[i].total=arr[i].productPrice*arr[i].buyCount;
+			if(arr[i].total){
+				userarr.push(arr[i]);
+			}
+		}
+		return userarr.sort((n1,n2)=>{
+			return n2.total-n1.total;
+		});
 	},
     async getAddressList() {
       let memberId = JSON.parse(localStorage.getItem("userInfo")).data.id;
@@ -423,9 +382,11 @@ export default {
 	  let valDateFromTime=0;
 	  let valDateToTime=0;
 	  let dateChecked=true;
+	  
 	  if (data) {
 		this.drawlist=[];
 		for(let itemInCart of this.goldmedal) {
+			let tmpIndex=0;
 			for(let myCoupon of data.data) {
 				valDateFromTime=0;
 				valDateToTime=0;
@@ -442,9 +403,18 @@ export default {
 				if(valDateToTime && curTime > valDateToTime) {
 					dateChecked=false;
 				}
-				if(dateChecked && myCoupon.activityId != 10 && myCoupon.status == 0 && (myCoupon.productCodes.indexOf(itemInCart.productCode)>-1 || !myCoupon.productCodes)) {
+				if(myCoupon.minQuantity && myCoupon.minQuantity>itemInCart.buyCount) {
+					dateChecked=false;
+				}
+				if(myCoupon.minPrice && myCoupon.minPrice>this.sumPrice) {
+					dateChecked=false;
+				}
+				
+				if(dateChecked && myCoupon.activityId != 10 && myCoupon.status == 0 && (!myCoupon.productCodes || myCoupon.productCodes.indexOf(itemInCart.productCode)>-1)) {
+					data.data.splice(tmpIndex,1);
 					_self.drawlist.push(myCoupon);
 				}
+				tmpIndex++;
 			}
 		}
 	  }
@@ -452,6 +422,7 @@ export default {
 	pickCoupon(item){
 		this.curCoupon = item;
 		this.dialogInfo1 = false;
+		this.discountedSumPrice();
 	},
     editAddress(item) {
       this.dialogAddTitle = "修改收货地址";
@@ -556,7 +527,7 @@ export default {
             addressDetailInfo: orderAddress[0].detailAddress,
           },
         };
-		if(this.curCoupon.couponId && tmpCounter == this.discountedItemIndex) {
+		if(this.curCoupon.couponId && item.productCode == this.discountedProductCode) {
 			oneProduct.couponId = this.curCoupon.couponId;
 			oneProduct.couponTypeId = this.curCoupon.couponTypeId;
 			oneProduct.couponName = this.curCoupon.couponName;
@@ -644,6 +615,7 @@ export default {
     this.goldmedal = JSON.parse(this.$route.query.list);
     this.getAddressList();
 	this.checkIsLogin();
+	this.finalAmount = this.sumPrice;
     // this.addressstype = this.$route.query.stype;
     // this.orderNumber = this.$route.query.orderNumber;
     // this.canceldanhao(this.orderNumber);