From e425e5d101e1d48e40674a2a801efb8dd060e8a5 Mon Sep 17 00:00:00 2001
From: gongzuming <gongzuming>
Date: 星期五, 20 九月 2024 13:44:35 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master-v2'

---
 src/main/java/com/mzl/flower/service/payment/OrderService.java |   90 +++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 83 insertions(+), 7 deletions(-)

diff --git a/src/main/java/com/mzl/flower/service/payment/OrderService.java b/src/main/java/com/mzl/flower/service/payment/OrderService.java
index 2ef01ff..681a6fd 100644
--- a/src/main/java/com/mzl/flower/service/payment/OrderService.java
+++ b/src/main/java/com/mzl/flower/service/payment/OrderService.java
@@ -16,6 +16,7 @@
 import com.mzl.flower.dto.request.payment.*;
 import com.mzl.flower.dto.response.flower.FlowerCartListDTO;
 import com.mzl.flower.dto.response.flower.FlowerCartListWrapDTO;
+import com.mzl.flower.dto.response.flower.FlowerDTO;
 import com.mzl.flower.dto.response.flower.ParamItemDTO;
 import com.mzl.flower.dto.response.partner.PartnerOrderDTO;
 import com.mzl.flower.dto.response.payment.*;
@@ -25,6 +26,7 @@
 import com.mzl.flower.entity.coupon.CouponRecordDO;
 import com.mzl.flower.entity.customer.Address;
 import com.mzl.flower.entity.customer.Customer;
+import com.mzl.flower.entity.flower.Flower;
 import com.mzl.flower.entity.flower.FlowerSupplierSaleNum;
 import com.mzl.flower.entity.menber.Member;
 import com.mzl.flower.entity.partner.Partner;
@@ -158,6 +160,7 @@
     @Autowired
     private CouponRecordService couponRecordService;
 
+
     public void changeFlower2Cart(CartSaveDTO dto) {
         String userId = SecurityUtils.getUserId();
         String key = userId + "_" + dto.getId();
@@ -178,9 +181,41 @@
                 c.setNum(dto.getNum());
                 c.create(userId);
 
+                // 限购  1.首先查看购物车中的数量是否已经超过限售数量
+                final FlowerDTO flowerDetail = flowerService.getFlowerDetail(c.getFlowerId());
+                if(null!=c.getNum() && null!=flowerDetail.getLimited()
+                        && c.getNum().compareTo(flowerDetail.getLimited())>0){
+                    throw new ValidationException("数量不能超过限售数量!");
+                }
+
+                // 限购  2.查看已结单的订单的当前花朵已经购买的数量,加当前购物车的加入的数量是否超过限购的数量,查看当前5点前到昨天五点前
+                Integer completeNumToday=getFlowerCompleteNumToday(userId,c.getFlowerId());
+                Integer tmp=completeNumToday+c.getNum();
+                if(null!=tmp && null!=flowerDetail.getLimited()
+                      &&  tmp.compareTo(flowerDetail.getLimited())>0){
+                    throw new ValidationException("当天的订单的花数量加上购物车的数量不能超过限售数量!");
+                }
+
                 cartMapper.insert(c);
             } else {
+                // 查看是否已经超过当前商品的限购数量
+                final FlowerDTO flowerDetail = flowerService.getFlowerDetail(c.getFlowerId());
                 c.setNum((c.getNum()==null?0:c.getNum()) + dto.getNum());
+
+                // 限购  1.首先查看购物车中的数量是否已经超过限售数量
+                if(null!=c.getNum() && null!=flowerDetail.getLimited()
+                      && c.getNum().compareTo(flowerDetail.getLimited())>0){
+                    throw new ValidationException("数量不能超过限售数量!");
+                }
+
+                // 限购  2.查看已结单的订单的当前花朵已经购买的数量,加当前购物车的加入的数量是否超过限购的数量,查看当前5点前到昨天五点前
+                Integer completeNumToday=getFlowerCompleteNumToday(userId,c.getFlowerId());
+                Integer tmp=completeNumToday+c.getNum();
+                if(null!=tmp && null!=flowerDetail.getLimited()
+                       && tmp.compareTo(flowerDetail.getLimited())>0){
+                    throw new ValidationException("当天的订单的花数量加上购物车的数量不能超过限售数量!");
+                }
+
                 c.update(userId);
                 if (c.getNum() <= 0) {
                     cartMapper.deleteById(c.getId());
@@ -298,6 +333,8 @@
     }
 
     public PreOrderDTO getPreOrderInfo(List<CartSaveDTO> flowers, Map<Long, PriceDTO> priceMap) {
+        String userId = SecurityUtils.getUserId();
+
         if (flowers == null || flowers.size() == 0) {
             throw new ValidationException("请选择商品");
         }
@@ -313,6 +350,18 @@
             }
             idNumMap.put(id, num);
         }
+
+        // 限购数量校验 鲜花数量校验
+        flowers.forEach(cartSaveDTO -> {
+            // 限购数量 鲜花数量校验
+            Integer completeNumToday=getFlowerCompleteNumToday(userId,cartSaveDTO.getId());
+            Integer tmp=completeNumToday+cartSaveDTO.getNum();
+            Flower flower=flowerMapper.selectById(cartSaveDTO.getId());
+            if(null!=flower.getLimited() && tmp.compareTo(flower.getLimited())>0){
+                throw new ValidationException("商品:'"+flower.getName()+"' 昨天17:00到今天17:00 超过限售数量:"+flower.getLimited()+"!");
+            }
+        });
+
         PreOrderDTO result = new PreOrderDTO();
 
         List<FlowerCartListDTO> ls = flowerMapper.selectFlowerOrderList(ids);
@@ -395,6 +444,17 @@
     }
 
     public Map commitOrder(OrderCommitDTO dto, PreOrderDTO p, Map<Long, PriceDTO> priceMap) {
+        String userId = SecurityUtils.getUserId();
+        p.getFlowers().forEach(flower -> {
+            // 限购数量 鲜花数量校验
+            Integer completeNumToday=getFlowerCompleteNumToday(userId,flower.getId());
+            Integer tmp=completeNumToday+flower.getNum();
+            if(null!=tmp && null!=flower.getLimited()
+                    && tmp.compareTo(flower.getLimited())>0){
+                throw new ValidationException("商品:'"+flower.getName()+"' 昨天17:00到今天17:00 超过限售数量:"+flower.getLimited()+"!");
+            }
+        });
+
         WxMaJscode2SessionResult session = null;
         try {
             session = weChatService.getWxMaSessionInfo(dto.getWxcode());
@@ -417,7 +477,7 @@
             deliveryName = d.getName();
         }
 
-        String userId = SecurityUtils.getUserId();
+
         Order order = new Order();
         order.setId(UUIDGenerator.getUUID());
 
@@ -481,10 +541,11 @@
         List<FlowerCartListDTO> flowers = p.getFlowers();
         Map<Long, List<ParamItemDTO>> paramMap = new HashMap<>();
         final BigDecimal flowerAmount = order.getFlowerAmount();//订单商品总价
-        final BigDecimal memberCouponAmount = order.getMemberCouponAmount();//使用优惠券面值
+        final BigDecimal memberCouponAmount = getAmount(order.getMemberCouponAmount());//使用优惠券面值
         BigDecimal usedCouponAmount = new BigDecimal(0);
         for (int i = 0; i < flowers.size(); i++) {
             FlowerCartListDTO f = flowers.get(i);
+
             OrderItem t = new OrderItem();
             t.setId(UUIDGenerator.getUUID());
             t.setOrderId(order.getId());
@@ -517,9 +578,15 @@
             BigDecimal couponAmount = calculateCoupon(memberCouponAmount, t.getTotal()
                     , flowerAmount, t.getNum(), t.getPrice(), isLastOne, usedCouponAmount);
             t.setCouponAmount(couponAmount);//每扎平摊的优惠券面值
-            t.setRealPrice(t.getPrice().subtract(couponAmount));//退款时使用的真实成交价
+            t.setRealPrice(t.getPrice().subtract(couponAmount));//退款时使用的真实成交单价
 
-            usedCouponAmount = usedCouponAmount.add(couponAmount.multiply(BigDecimal.valueOf(t.getNum())));
+            t.setCouponAmountTotal(couponAmount.multiply(BigDecimal.valueOf(t.getNum())));
+            if(isLastOne){
+                t.setCouponAmountTotal(memberCouponAmount.subtract(usedCouponAmount));
+            } else {
+                usedCouponAmount = usedCouponAmount.add(t.getCouponAmountTotal());
+            }
+            t.setRealTotal(t.getTotal().subtract(t.getCouponAmountTotal()));
 
             t.create(userId);
             orderItemMapper.insert(t);
@@ -570,7 +637,7 @@
     private BigDecimal calculateCoupon(BigDecimal couponAmount, BigDecimal itemTotalAmount
             , BigDecimal totalAmount, Integer num, BigDecimal price
             , boolean isLastOne, BigDecimal usedCouponAmount){
-        if(couponAmount == null){
+        if(couponAmount == null || couponAmount.doubleValue() == 0){
             return new BigDecimal(0);
         }
 
@@ -581,9 +648,13 @@
             BigDecimal subCoupon = couponAmount.subtract(usedCouponAmount);//占有的优惠券面值
             return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);
         }
-        BigDecimal radio = itemTotalAmount.divide(totalAmount, 2, RoundingMode.HALF_UP);//计算该商品总价在订单中的占比
+
+        /*BigDecimal radio = itemTotalAmount.divide(totalAmount, 2, RoundingMode.HALF_UP);//计算该商品总价在订单中的占比
         BigDecimal subCoupon = couponAmount.multiply(radio);//占有的优惠券面值
-        return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);
+        return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);*/
+
+        //不能分步计算,分步计算会有精度问题
+        return couponAmount.multiply(itemTotalAmount).divide(totalAmount.multiply(BigDecimal.valueOf(num)), 2, RoundingMode.HALF_UP);
     }
 
     private CouponRecordDO useCouponRecord(String orderId, BigDecimal amount, String couponRecordId){
@@ -1491,4 +1562,9 @@
         Order o = orderMapper.getUserLastOrder(userId);
         return o.getReceiveTime();
     }
+
+    public Integer getFlowerCompleteNumToday(String userId,Long flowerId){
+        Integer completeNum= orderMapper.getFlowerCompleteNumToday(userId,flowerId);
+        return completeNum;
+    }
 }

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