限时特价优惠语提示fixbug

shopping-cart-application-service/src/main/java/cn/freemud/service/impl/TimeSalePromotionService.java

@@ -47,7 +47,7 @@ public class TimeSalePromotionService implements IPromotionService {
         String toastMsg = null;
         Map<String, ActivityCalculationDiscountResponseDto.CalculationDiscountResult.Goods> goodsMap = goodsList.parallelStream()
                 .collect(Collectors.toMap(ActivityCalculationDiscountResponseDto.CalculationDiscountResult.Goods::getGoodsId, Function.identity(), (k1, k2) -> k1));
-        // 存储当前享受限时特价折扣的商品数量
+        // 存储当前享受限时特价折扣的商品数量，key:goodsId; value:可享受数量
         Map<String, Integer> numberMap = new HashMap<>();
         for (CartGoods cartGoods : cartGoodsList) {
             ActivityCalculationDiscountResponseDto.CalculationDiscountResult.Goods goods;
@@ -58,48 +58,26 @@ public class TimeSalePromotionService implements IPromotionService {
             if (goodsDiscount == null) {
                 continue;
             }
-            // 设置商品原价与商品现价的初始值
-            cartGoods.setOriginalAmount(goods.getOriginalPrice() * cartGoods.getQty());
-            cartGoods.setAmount(goods.getOriginalPrice() * cartGoods.getQty() - goods.getDiscountAmount());
             // 享受限时特价折扣的商品数量
             Integer specialActualGoodsNumber = null;
             // 商品现价
-            Long goodsNowPrice = null;
-            // 获取享受限时特价折扣的商品数量与商品现价
-            if (CollectionUtils.isNotEmpty(calculationDiscountResult.getApportionGoods())) {
-                ActivityCalculationDiscountResponseDto.CalculationDiscountResult.ApportionGoods apportionGoods = getApportionGoods(cartGoods, calculationDiscountResult.getApportionGoods(), ActivityTypeEnum.TYPE_2);
-                if (apportionGoods != null) {
-                    specialActualGoodsNumber = apportionGoods.getGoodsQuantity();
-                    ActivityCalculationDiscountResponseDto.CalculationDiscountResult.ApportionGoods.ApportionDetails apportionDetails = getApportionDetails(apportionGoods.getApportionDetails(), ActivityTypeEnum.TYPE_2);
-                    if (apportionDetails != null) {
-                        goodsNowPrice = apportionDetails.getGoodsNowPrice();
-                    }
-                }
-            }
-            // 获取享受限时特价折扣的商品数量失败，重新计算=商品折扣总金额/(商品原价-商品现价)
-            if (specialActualGoodsNumber == null) {
-                specialActualGoodsNumber = (int) (goodsDiscount.getDiscount() / (goods.getOriginalPrice() - goods.getNowPrice()));
-            }
-            // 获取商品现价失败，从优惠信息中获取
-            if (goodsNowPrice == null) {
-                goodsNowPrice = goods.getNowPrice();
-            }
-            // Map中存有上次计算剩余的享受限时特价折扣的商品数量
-            if (numberMap.get(goods.getGoodsId()) != null) {
-                specialActualGoodsNumber = numberMap.get(goods.getGoodsId());
-            }
-            if (specialActualGoodsNumber >= cartGoods.getQty()) {
-                numberMap.put(goods.getGoodsId(), specialActualGoodsNumber - cartGoods.getQty());
-                specialActualGoodsNumber = cartGoods.getQty();
+            Long goodsNowPrice = cartGoods.getOriginalPrice() - goodsDiscount.getDiscount() / goodsDiscount.getActualGoodsNumber();
+            // numberMap用于暂存当前商品行可享受限时特价折扣的商品数量
+            if ((specialActualGoodsNumber = numberMap.get(goods.getGoodsId())) == null) {
+                numberMap.put(goods.getGoodsId(), specialActualGoodsNumber=goodsDiscount.getActualGoodsNumber());
+            }
+            //若可享受数量>=当前商品行的商品数量
+            if (specialActualGoodsNumber - cartGoods.getQty() >= 0) {
+                cartGoods.setAmount(goodsNowPrice * cartGoods.getQty());
             } else {
-                numberMap.put(goods.getGoodsId(), 0);
-            }
-            cartGoods.setAmount(goodsNowPrice * specialActualGoodsNumber + goods.getOriginalPrice() * (cartGoods.getQty() - specialActualGoodsNumber));
-            if (StringUtils.isEmpty(toastMsg) && specialActualGoodsNumber < goods.getGoodsQuantity()) {
-                // 存在限时特价折扣
-                toastMsg = "该商品限" + specialActualGoodsNumber + "份优惠 超出按照原价计算哦";
-
+                //总价=可享受数量*优惠后单价+（当前商品行的商品数量-可享受数量）*商品原价
+                cartGoods.setAmount(specialActualGoodsNumber > 0 ? specialActualGoodsNumber * goodsNowPrice + (cartGoods.getQty() - specialActualGoodsNumber) * cartGoods.getOriginalPrice()
+                        : goods.getOriginalPrice() * cartGoods.getQty());
+                if (StringUtils.isEmpty(toastMsg)) {
+                    toastMsg = "该商品限" + goodsDiscount.getActualGoodsNumber() + "份优惠 超出按照原价计算哦";
+                }
             }
+            numberMap.put(goods.getGoodsId(), specialActualGoodsNumber - cartGoods.getQty());
         }
         if (StringUtils.isNotBlank(toastMsg)) {
             shoppingCartGoodsResponseVo.setToastMsg(toastMsg);
@@ -144,7 +122,7 @@ public class TimeSalePromotionService implements IPromotionService {
                 activityDiscountsDto.setActivityType(ActivityTypeEnum.TYPE_2.getCode());
                 activityDiscountsDto.setDiscountAmount(totalDiscountAmount.intValue());
                 cartGoods.getActivityDiscountsDtos().add(activityDiscountsDto);
-                cartGoods.setTotalDiscountAmount(cartGoods.getTotalDiscountAmount()+ totalDiscountAmount.intValue());
+                cartGoods.setTotalDiscountAmount(cartGoods.getTotalDiscountAmount() + totalDiscountAmount.intValue());
                 numberMap.put(cartGoods.getSkuId(), actualGoodsNumber - cartGoods.getQty());
             } else {
                 cartGoods.setTotalDiscountAmount(0);