feat(payment): 集成 FIUU 支付方式并优化退款流程

KKSU

2025-02-06 fc218afbf928f5cea5780ea32f51135f31c333e2

 src/main/java/cc/mrbird/febs/mall/service/impl/ApiMallOrderInfoServiceImpl.java

@@ -87,6 +87,7 @@
    private final CouponGoodsMapper couponGoodsMapper;

    private final IMallVipConfigService mallVipConfigService;
    private final MallActivityMapper mallActivityMapper;

    @Override
    @Transactional(rollbackFor = Exception.class)
@@ -284,8 +285,8 @@
     * @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<>();
    public Map<Long, BigDecimal> getCouponAmountMap(Long memberCouponId, List<AddOrderItemDto> items) {
        HashMap<Long, BigDecimal> couponAmountMap = new HashMap<>();
        // 获取优惠券信息
        Optional<MallMemberCoupon> optionalMallMemberCoupon = Optional.ofNullable(mallMemberCouponMapper.selectById(memberCouponId));
        MallMemberCoupon mallMemberCoupon = optionalMallMemberCoupon.orElse(null);
@@ -294,17 +295,7 @@
            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
        Set<Long> skuIdsAll = skusAll.stream().map(MallGoodsSku::getId).collect(Collectors.toSet());//获取该优惠卷绑定的全部商品skuIDS
        Set<Long> skuIds = items.stream().map(AddOrderItemDto::getSkuId).collect(Collectors.toSet());//订单中的全部skuIds

        // 获取交集
        Set<Long> intersection = skuIds.stream()
                .filter(skuIdsAll::contains)
                .collect(Collectors.toSet());
        Set<Long> intersection = items.stream().map(AddOrderItemDto::getSkuId).collect(Collectors.toSet()); // 订单中的全部skuIds

        if (intersection.isEmpty()) {
            return couponAmountMap;
@@ -342,32 +333,53 @@

        BigDecimal costAmount = mallGoodsCoupon.getCostAmount();
        BigDecimal realAmount = mallGoodsCoupon.getRealAmount();
        Integer type = mallGoodsCoupon.getType();
        if (MallGoodsCoupon.TYPE_ONE == type) {
            realAmount = mallGoodsCoupon.getRealAmount();
        } else if (MallGoodsCoupon.TYPE_TWO == type) {
            BigDecimal divideTime = totalAmount.divide(costAmount, 0, RoundingMode.DOWN); // 累计减免次数
            realAmount = divideTime.multiply(realAmount); // 实际减免金额
        }

        if (totalAmount.compareTo(costAmount) < 0) {
            return couponAmountMap;
        }
        for (Map.Entry<Long,BigDecimal> entry : skuMap.entrySet()) {

        BigDecimal totalDiscount = BigDecimal.ZERO;
        for (Map.Entry<Long, BigDecimal> entry : skuMap.entrySet()) {
            Long keySkuId = entry.getKey();
            BigDecimal valueSkuAmount = entry.getValue();
            BigDecimal divide = valueSkuAmount.divide(totalAmount, 4, RoundingMode.DOWN);//每个商品占符合满减的总额的比例
            Integer type = mallGoodsCoupon.getType();
            if(MallGoodsCoupon.TYPE_ONE == type){
                BigDecimal bigDecimalOne = realAmount.multiply(divide).setScale(2, RoundingMode.DOWN);//每个SKU的减免金额(比例*减免金额)
                BigDecimal skuRealAmountOne = valueSkuAmount.subtract(bigDecimalOne.max(BigDecimal.ZERO));//实际支付金额
                couponAmountMap.put(keySkuId, skuRealAmountOne);
                continue;
            BigDecimal divide = valueSkuAmount.divide(totalAmount, 4, RoundingMode.DOWN); // 每个商品占符合满减的总额的比例
            BigDecimal skuRealAmount = BigDecimal.ZERO;
            if (MallGoodsCoupon.TYPE_ONE == type) {
                BigDecimal bigDecimalOne = realAmount.multiply(divide).setScale(2, RoundingMode.DOWN); // 每个SKU的减免金额(比例*减免金额)
                skuRealAmount = valueSkuAmount.subtract(bigDecimalOne.max(BigDecimal.ZERO)).setScale(2, RoundingMode.DOWN);
                totalDiscount = totalDiscount.add(bigDecimalOne);
            } else if (MallGoodsCoupon.TYPE_TWO == type) {
                BigDecimal divideTime = totalAmount.divide(costAmount, 0, RoundingMode.DOWN); // 累计减免次数
                BigDecimal multiply = divideTime.multiply(realAmount); // 实际减免金额
                BigDecimal bigDecimalTwo = multiply.multiply(divide).setScale(2, RoundingMode.DOWN); // 每个SKU的减免金额(比例*实际减免金额)
                skuRealAmount = valueSkuAmount.subtract(bigDecimalTwo.max(BigDecimal.ZERO)).setScale(2, RoundingMode.DOWN);
                totalDiscount = totalDiscount.add(bigDecimalTwo);
            }
            if(MallGoodsCoupon.TYPE_TWO == type){
                BigDecimal divideTime = totalAmount.divide(costAmount, 0, RoundingMode.DOWN);//累计减免次数
                BigDecimal multiply = divideTime.multiply(realAmount);//实际减免金额
                BigDecimal bigDecimalTwo = multiply.multiply(divide).setScale(2, RoundingMode.DOWN);//每个SKU的减免金额(比例*实际减免金额)
                BigDecimal skuRealAmountTwo = valueSkuAmount.subtract(bigDecimalTwo.max(BigDecimal.ZERO));//实际支付金额
                couponAmountMap.put(keySkuId, skuRealAmountTwo);
                continue;
            couponAmountMap.put(keySkuId, skuRealAmount);
        }

        // 调整最后一个商品的减免金额以确保总减免金额达到预期
        if (totalDiscount.compareTo(realAmount) < 0) {
            BigDecimal difference = realAmount.subtract(totalDiscount);
            for (Map.Entry<Long, BigDecimal> entry : couponAmountMap.entrySet()) {
                Long keySkuId = entry.getKey();
                BigDecimal skuRealAmount = entry.getValue();
                BigDecimal newSkuRealAmount = skuRealAmount.subtract(difference).setScale(2, RoundingMode.DOWN);
                couponAmountMap.put(keySkuId, newSkuRealAmount);
                break; // 调整最后一个商品的减免金额
            }
        }

        return couponAmountMap;
    }


    public static void main(String[] args) {
        List<Integer> a = new ArrayList<>();
@@ -919,7 +931,7 @@
                mallRefundEntity.setItemId(mallOrderItem.getId());
                if("余额支付".equals(mallOrderInfo.getPayMethod())){
                    mallRefundEntity.setType(3);
                }else if("微信支付".equals(mallOrderInfo.getPayMethod())){
                }else if("FIUU支付".equals(mallOrderInfo.getPayMethod())){
                    mallRefundEntity.setType(1);
                }else{
                    mallRefundEntity.setType(3);
@@ -1017,22 +1029,6 @@
            if (sku == null) {
                return new FebsResponse().fail().message("购买商品或sku不存在");
            }
//            if("样品".equals(sku.getSample())){
//                List<MallOrderItem> mallOrderItems = mallOrderItemMapper.selectItemBySkuIdUnCancel(sku.getId(), member.getId());
//                if (CollUtil.isNotEmpty(mallOrderItems)) {
//                    return new FebsResponse().fail().message("样品只能购买一次");
//                }
//                Integer cnt = item.getCnt();
//                if(1 < cnt){
//                    return new FebsResponse().fail().message("样品只能购买一件");
//                }
//            }else{
//                //验证用户的等级
//                if(AgentLevelEnum.ZERO_LEVEL.name().equals(member.getLevel())){
//                    return new FebsResponse().fail().message("请先申请成为合伙人");
//                }
//            }

            if (sku.getStock() < item.getCnt()) {
                return new FebsResponse().fail().message(sku.getSkuName() + "库存不足");
            }
@@ -1041,6 +1037,14 @@
            if (MallGoods.ISSALE_STATUS_DISABLED.equals(mallGoods.getIsSale())) {
                return new FebsResponse().fail().message(mallGoods.getGoodsName() + "已下架");
            }
            if(GoodsTypeEnum.HUO_DONG.getValue() == mallGoods.getIsNormal()){
                //活动商品判断是否在活动进行中
                MallActivity mallActivity = mallActivityMapper.selectById(mallGoods.getActivityId());
                if(mallActivity == null || mallActivity.getState() != 2){
                    return new FebsResponse().fail().message("活动不在进行中");
                }
            }

        }

        return new FebsResponse().success();