From dc67dd90c6840d0770cb5bcd3cf62c58f9e0bd14 Mon Sep 17 00:00:00 2001
From: KKSU <15274802129@163.com>
Date: Thu, 01 Feb 2024 16:02:35 +0800
Subject: [PATCH] 会员列表增加波卷功能
---
src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java | 171 ++++++++++++++++++++++++++++++++++++++++++---------------
1 files changed, 126 insertions(+), 45 deletions(-)
diff --git a/src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java b/src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java
index e7aa9be..924fbef 100644
--- a/src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java
+++ b/src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java
@@ -124,6 +124,24 @@
this.baseMapper.insert(orderInfo);
BigDecimal total = BigDecimal.ZERO;
+ /**
+ * 根据传入的优惠卷ID和商品明细集合计算出每个商品获取的实际支付金额
+ */
+ Map<Long, BigDecimal> couponAmountMap = new HashMap<>();
+ MallMemberCoupon mallMemberCoupon = new MallMemberCoupon();
+ if(ObjectUtil.isNotEmpty(addOrderDto.getMemberCouponId())){
+ Long memberCouponId = addOrderDto.getMemberCouponId();
+ mallMemberCoupon = mallMemberCouponMapper.selectById(memberCouponId);
+ if(ObjectUtil.isEmpty(mallMemberCoupon)){
+ throw new FebsException(mallMemberCoupon.getCouponName()+"无法使用");
+ }
+ Integer state = mallMemberCoupon.getState();
+ if(1 != state){
+ throw new FebsException(mallMemberCoupon.getCouponName()+"无法使用");
+ }
+ List<AddOrderItemDto> items = addOrderDto.getItems();
+ couponAmountMap = getCouponAmountMap(memberCouponId, items);
+ }
for (AddOrderItemDto item : addOrderDto.getItems()) {
MallOrderItem orderItem = new MallOrderItem();
@@ -201,49 +219,11 @@
//是否使用优惠卷
if(ObjectUtil.isNotEmpty(addOrderDto.getMemberCouponId())){
Long memberCouponId = addOrderDto.getMemberCouponId();
- MallMemberCoupon mallMemberCoupon = mallMemberCouponMapper.selectById(memberCouponId);
- if(ObjectUtil.isEmpty(mallMemberCoupon)){
- throw new FebsException(mallMemberCoupon.getCouponName()+"无法使用");
+ BigDecimal skuCouponAmount = couponAmountMap.get(item.getSkuId());//使用折扣卷后的应该支付的钱
+ if(skuCouponAmount.compareTo(BigDecimal.ZERO) > 0){
+ amount = skuCouponAmount;
}
- Integer state = mallMemberCoupon.getState();
- if(1 != state){
- throw new FebsException(mallMemberCoupon.getCouponName()+"无法使用");
- }
- //卷是否和商品绑定
- Long skuGoodsId = sku.getGoodsId();
- Long couponId = mallMemberCoupon.getCouponId();
- MallGoodsCoupon mallGoodsCoupon = mallGoodsCouponMapper.selectById(mallMemberCoupon.getCouponId());
- if(ObjectUtil.isEmpty(mallGoodsCoupon)){
- throw new FebsException(mallGoodsCoupon.getName()+"无法使用");
- }
- Integer stateCoupon = mallGoodsCoupon.getState();
- if(2 != stateCoupon){
- throw new FebsException(mallGoodsCoupon.getName()+"无法使用");
- }
- List<CouponGoods> couponGoods = couponGoodsMapper.selectByGoodIdAndCouponId(skuGoodsId, couponId);
- if(ObjectUtil.isEmpty(couponGoods)){
- throw new FebsException(sku.getGoodsName()+"无法使用"+mallMemberCoupon.getCouponName());
- }
-// Long goodsId = mallMemberCoupon.getGoodsId();
-// if(goodsId != sku.getGoodsId()){
-// throw new FebsException(sku.getGoodsName()+"无法使用"+mallMemberCoupon.getCouponName());
-// }
- BigDecimal costAmount = mallGoodsCoupon.getCostAmount();
- BigDecimal realAmount = mallGoodsCoupon.getRealAmount();
- if(amount.compareTo(costAmount) >= 0){
- Integer type = mallGoodsCoupon.getType();
- if(MallGoodsCoupon.TYPE_TWO == type){
- BigDecimal divideTime = amount.divide(costAmount, 0, BigDecimal.ROUND_DOWN);//累计减免次数
- BigDecimal multiply = divideTime.multiply(realAmount);//实际减免金额
- amount = (amount.subtract(multiply).compareTo(BigDecimal.ZERO) > 0 ? amount.subtract(multiply) : BigDecimal.ZERO);
- }
- if(MallGoodsCoupon.TYPE_ONE == type){
- amount = (amount.subtract(realAmount).compareTo(BigDecimal.ZERO) > 0 ? amount.subtract(realAmount) : BigDecimal.ZERO);
- }
- orderItem.setMemberCouponId(memberCouponId);
- mallMemberCoupon.setState(2);
- mallMemberCouponMapper.updateById(mallMemberCoupon);
- }
+ orderItem.setMemberCouponId(memberCouponId);
}
orderItem.setAmount(amount);
orderItem.setCnt(item.getCnt());
@@ -278,6 +258,9 @@
}
mallOrderItemMapper.insert(orderItem);
}
+
+ mallMemberCoupon.setState(2);
+ mallMemberCouponMapper.updateById(mallMemberCoupon);
//运费
BigDecimal delivaryAmount = addOrderDto.getDeliveryAmount() == null ? BigDecimal.ZERO : addOrderDto.getDeliveryAmount();
orderInfo.setCarriage(delivaryAmount);
@@ -301,10 +284,108 @@
return orderInfo.getId();
}
+ /**
+ * 根据传入的优惠卷ID和商品明细集合计算出每个商品获取的实际支付金额
+ * @param memberCouponId 优惠卷ID
+ * @param items 商品明细
+ * @return Map<Long,BigDecimal> skuId，实际支付金额
+ */
+ @Override
+ public Map<Long,BigDecimal> getCouponAmountMap(Long memberCouponId,List<AddOrderItemDto> items){
+ HashMap<Long,BigDecimal> couponAmountMap = new HashMap<>();
+ MallMemberCoupon mallMemberCoupon = mallMemberCouponMapper.selectById(memberCouponId);
+ if(ObjectUtil.isEmpty(mallMemberCoupon)){
+ return couponAmountMap;
+ }
+ Integer state = mallMemberCoupon.getState();
+ if(1 != state){
+ return couponAmountMap;
+ }
+ Long couponId = mallMemberCoupon.getCouponId();//优惠卷ID
+ List<Long> goodsIdsAll = couponGoodsMapper.selectByCouponId(couponId);
+ List<MallGoodsSku> skusAll = mallGoodsSkuMapper.selectSkuIdsByGoodsId(goodsIdsAll);//获取该优惠卷绑定的全部商品sku
+ List<Long> skuIdsAll = skusAll.stream().map(MallGoodsSku::getId).collect(Collectors.toList());//获取该优惠卷绑定的全部商品skuIDS
+ List<Long> skuIds = items.stream().map(AddOrderItemDto::getSkuId).collect(Collectors.toList());//订单中的全部skuIds
+
+ /**
+ * 获取这张优惠卷生效的skuIds
+ */
+ Set<Long> intersection = skuIdsAll.stream()
+ .filter(item -> skuIds.contains(item))
+ .collect(Collectors.toSet());//获取两个集合的交集
+ if(CollUtil.isEmpty(intersection)){
+ return couponAmountMap;
+ }
+ HashMap<Long,BigDecimal> skuMap = new HashMap<>();//每个订单详情的ID和amount的map
+ List<MallGoodsSku> skus = mallGoodsSkuMapper.selectByIds(new ArrayList<>(intersection));
+ BigDecimal totalAmount = BigDecimal.ZERO;//订单中的总金额
+ Map<Long, AddOrderItemDto> itemMap = new HashMap<>();// 预先将items转换为Map，以skuId作为键
+ for (AddOrderItemDto addOrderItemDto : items) {
+ itemMap.put(addOrderItemDto.getSkuId(), addOrderItemDto);
+ }
+ for(MallGoodsSku mallGoodsSku : skus){
+ Long id = mallGoodsSku.getId();
+ BigDecimal presentPrice = mallGoodsSku.getPresentPrice();
+ // 检查itemMap中是否存在该商品
+ AddOrderItemDto addOrderItemDto = itemMap.get(id);
+ if (addOrderItemDto != null) {
+ BigDecimal skuAmount = presentPrice.multiply(BigDecimal.valueOf(addOrderItemDto.getCnt()));
+ totalAmount = totalAmount.add(skuAmount);
+ skuMap.put(id,skuAmount);
+ }
+ }
+
+ /**
+ * 计算每个商品利用优惠卷打折的具体金额
+ */
+ MallGoodsCoupon mallGoodsCoupon = mallGoodsCouponMapper.selectById(mallMemberCoupon.getCouponId());
+ BigDecimal costAmount = mallGoodsCoupon.getCostAmount();
+ BigDecimal realAmount = mallGoodsCoupon.getRealAmount();
+ if(totalAmount.compareTo(costAmount) < 0){
+ return couponAmountMap;
+ }
+ HashMap<Long,BigDecimal> skuMapPercent = new HashMap<>();//每个订单详情的ID和amount的map
+ for (Map.Entry<Long,BigDecimal> entry : skuMap.entrySet()) {
+ Long keySkuId = entry.getKey();
+ BigDecimal valueSkuAmount = entry.getValue();
+ BigDecimal divide = valueSkuAmount.divide(totalAmount, 4, BigDecimal.ROUND_DOWN);//每个商品占符合满减的总额的比例
+ skuMapPercent.put(keySkuId,divide);
+ Integer type = mallGoodsCoupon.getType();
+ if(MallGoodsCoupon.TYPE_ONE == type){
+ BigDecimal bigDecimal = realAmount.multiply(divide).setScale(2, BigDecimal.ROUND_DOWN);//每个SKU的减免金额(比例*减免金额)
+ BigDecimal skuRealAmount = valueSkuAmount.subtract(bigDecimal.compareTo(BigDecimal.ZERO) > 0 ? bigDecimal : BigDecimal.ZERO);//实际支付金额
+ couponAmountMap.put(keySkuId,skuRealAmount);
+ }
+ if(MallGoodsCoupon.TYPE_TWO == type){
+ BigDecimal divideTime = totalAmount.divide(costAmount, 0, BigDecimal.ROUND_DOWN);//累计减免次数
+ BigDecimal multiply = divideTime.multiply(realAmount);//实际减免金额
+ BigDecimal bigDecimal = multiply.multiply(divide).setScale(2, BigDecimal.ROUND_DOWN);//每个SKU的减免金额(比例*实际减免金额)
+ BigDecimal skuRealAmount = valueSkuAmount.subtract(bigDecimal.compareTo(BigDecimal.ZERO) > 0 ? bigDecimal : BigDecimal.ZERO);//实际支付金额
+ couponAmountMap.put(keySkuId,skuRealAmount);
+ }
+ }
+ return couponAmountMap;
+ }
+
public static void main(String[] args) {
- BigDecimal bigDecimal = new BigDecimal(980);
- BigDecimal divide = bigDecimal.divide(new BigDecimal(100), 0, BigDecimal.ROUND_DOWN);
- System.out.println(divide);
+ List<Integer> a = new ArrayList<>();
+ a.add(1);
+ a.add(2);
+ a.add(3);
+ List<Integer> b = new ArrayList<>();
+ b.add(3);
+ b.add(4);
+ b.add(5);
+ boolean b1 = a.retainAll(b);
+ System.out.println(b1);
+ System.out.println(a);
+ System.out.println(b);
+ List<Integer> intersection = a.stream()
+ .filter(item -> b.contains(item))
+ .collect(Collectors.toList());
+
+ System.out.println(intersection);
+
}
--
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