优惠券使用指定商品 · Pull Request !37 · linlinjava/litemall

public LitemallCoupon checkCoupon(Integer userId, Integer couponId, Integer userCouponId, BigDecimal checkedGoodsPrice, List<LitemallCart> checkedGoodsList) {
        LitemallCoupon coupon = couponService.findById(couponId);
        if (coupon == null) {
            return null;
        }

LitemallCouponUser couponUser = couponUserService.findById(userCouponId);
        if (couponUser == null) {
            couponUser = couponUserService.queryOne(userId, couponId);
        } else if (!couponId.equals(couponUser.getCouponId())) {
            return null;
        }

if (couponUser == null) {
            return null;
        }

// 检查是否超期
        Short timeType = coupon.getTimeType();
        Short days = coupon.getDays();
        LocalDateTime now = LocalDateTime.now();
        if (timeType.equals(CouponConstant.TIME_TYPE_TIME)) {
            if (now.isBefore(coupon.getStartTime()) || now.isAfter(coupon.getEndTime())) {
                return null;
            }
        } else if (timeType.equals(CouponConstant.TIME_TYPE_DAYS)) {
            LocalDateTime expired = couponUser.getAddTime().plusDays(days);
            if (now.isAfter(expired)) {
                return null;
            }
        } else {
            return null;
        }

// 检测商品是否符合
        Short goodType = coupon.getGoodsType();
        //指定商品集合
        Integer[] goodList = new Integer[100];
        // TODO 全平台商品
        if (goodType.equals(CouponConstant.GOODS_TYPE_ALL)) {

}
        // TODO 指定商品
        else if (goodType.equals(CouponConstant.GOODS_TYPE_ARRAY)) {
            for (int i = 0; i < checkedGoodsList.size(); i++) {
                goodList[i] = checkedGoodsList.get(i).getGoodsId();
            }
            HashSet<Integer> set = new HashSet<>(Arrays.asList(coupon.getGoodsValue()));
            set.retainAll(Arrays.asList(goodList));
            if(set.size() <= 0){
                return null;
            }else {

}
        }
        // TODO 指定分类
        else {
            return null;
        }

// 检测订单状态
        Short status = coupon.getStatus();
        if (!status.equals(CouponConstant.STATUS_NORMAL)) {
            return null;
        }
        // 检测是否满足最低消费
        if (checkedGoodsPrice.compareTo(coupon.getMin()) == -1) {
            return null;
        }

return coupon;
    }

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