From ae1471f378f399f76518539ec8992e64a3673436 Mon Sep 17 00:00:00 2001
From: 陶杰 <1378534974@qq.com>
Date: 星期三, 08 一月 2025 15:26:06 +0800
Subject: [PATCH] 1.订单提交：订单最小金额配置
---
src/main/java/com/mzl/flower/service/impl/coupon/CouponRecordServiceImpl.java | 490 +++++++++++++++++++++++++++++++++++++++++++++---------
1 files changed, 405 insertions(+), 85 deletions(-)
diff --git a/src/main/java/com/mzl/flower/service/impl/coupon/CouponRecordServiceImpl.java b/src/main/java/com/mzl/flower/service/impl/coupon/CouponRecordServiceImpl.java
index 3724c94..398f1b3 100644
--- a/src/main/java/com/mzl/flower/service/impl/coupon/CouponRecordServiceImpl.java
+++ b/src/main/java/com/mzl/flower/service/impl/coupon/CouponRecordServiceImpl.java
@@ -1,38 +1,42 @@
package com.mzl.flower.service.impl.coupon;
import cn.hutool.core.util.IdUtil;
+import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.config.security.SecurityUtils;
-import com.mzl.flower.dto.request.coupon.CreateCouponRecordDTO;
-import com.mzl.flower.dto.request.coupon.QueryCouponRecordDTO;
-import com.mzl.flower.dto.request.coupon.QueryCouponStatisticsBO;
-import com.mzl.flower.dto.request.coupon.QueryExistCouponDTO;
+import com.mzl.flower.dto.request.coupon.*;
import com.mzl.flower.dto.response.coupon.CouponRecordVO;
import com.mzl.flower.entity.coupon.CouponRecordDO;
import com.mzl.flower.entity.coupon.CouponTemplateDO;
import com.mzl.flower.entity.customer.Customer;
-import com.mzl.flower.entity.system.User;
import com.mzl.flower.enums.*;
import com.mzl.flower.mapper.coupon.CouponRecordMapper;
import com.mzl.flower.mapper.coupon.CouponRecordMapperCustom;
import com.mzl.flower.mapper.customer.CustomerMapper;
import com.mzl.flower.service.coupon.CouponRecordService;
import com.mzl.flower.service.coupon.CouponTemplateService2;
+import com.mzl.flower.service.customer.CustomerService;
import com.mzl.flower.service.system.UserService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
+import org.redisson.api.RLock;
+import org.redisson.api.RedissonClient;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
+import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.time.temporal.TemporalAdjusters;
+import java.util.Comparator;
import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
/**
@@ -59,97 +63,163 @@
@Autowired
private CustomerMapper customerMapper;
+ @Autowired
+ private CustomerService customerService;
+
+
@Override
public List<CouponRecordVO> getList(QueryCouponRecordDTO dto) {
return couponRecordMapperCustom.getList(dto);
}
+ @Autowired
+ RedissonClient redissonClient;
+
+ private static final String COUPON_KEY="com:mzl:flower:service:impl:coupon:%s";
+
+ @Transactional
@Override
public boolean createCouponRecord(CreateCouponRecordDTO dto) {
+
+ final CouponTemplateDO couponTemplateDO = couponTemplateService.getById(dto.getCouponId());
+ if(couponTemplateDO==null){
+ throw new ValidationException("优惠券不存在");
+ }
final Customer customer = customerMapper.selectById(dto.getCustomerId());
if(null==customer){
throw new ValidationException("商户信息不存在");
}
- final CouponTemplateDO couponTemplateDO = couponTemplateService.getById(dto.getCouponId());
-
- // TODO 活动优惠券和积分优惠券需要根据库存来控制- 根据优惠券的发放数量来控制有没有超发
-
-
- // TODO 根据用户领取设置的getLimit 查看当前用户是否已经超领优惠券
-
-
- CouponRecordDO couponRecordDO=new CouponRecordDO();
- BeanUtils.copyProperties(dto,couponRecordDO);
- couponRecordDO.create(SecurityUtils.getUserId());
- // 设置为待使用状态
- couponRecordDO.setStatus(CouponUsedStatusEnum.UNUSED.getType());
-
- // 根据商户设置用户id
- if(StringUtils.isBlank(dto.getUserId()) && StringUtils.isNotBlank(customer.getUserId())){
- couponRecordDO.setUserId(customer.getUserId());
- }
-
- // 优惠券字段冗余
-
- if(null!=couponTemplateDO){
- couponRecordDO.setCategory(couponTemplateDO.getGetUserType());
- couponRecordDO.setCouponCode(couponTemplateDO.getCouponCode());
- couponRecordDO.setCouponName(couponTemplateDO.getCouponName());
- couponRecordDO.setCouponDiscountValue(couponTemplateDO.getCouponDiscountValue());
- couponRecordDO.setMinOrderAmount(couponTemplateDO.getMinOrderAmount());
- couponRecordDO.setGetType(couponTemplateDO.getGetType());
- couponRecordDO.setCouponDiscountType(couponTemplateDO.getCouponDiscountType());
- couponRecordDO.setGetUserType(couponTemplateDO.getGetUserType());
- couponRecordDO.setPoint(couponTemplateDO.getPoint());
-
-
- // 根据优惠券模板来计算优惠券的生效开始时间和结束时间
- if(StringUtils.isNotBlank(couponTemplateDO.getCategory()) && couponTemplateDO.getCategory().equals(CouponCategoryEnum.MEMBER.getStatus())){
- // 如果是会员优惠券的话，则设置为优惠券的使用条件为优惠券的时间
- couponRecordDO.setEffectiveStart(couponTemplateDO.getUsageStartDate());
- couponRecordDO.setEffectiveEnd(couponTemplateDO.getUsageEndDate());
- }else{
- // 非会员的根据领取时间类型来计算优惠券的时间
- if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.GET.getType())){
- // 与领取时间一致
- couponRecordDO.setEffectiveStart(couponTemplateDO.getGetStartDate());
- couponRecordDO.setEffectiveEnd(couponTemplateDO.getGetEndDate());
- }
- if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.FIXED.getType())){
- // 固定时间
- couponRecordDO.setEffectiveStart(couponTemplateDO.getUsageStartDate());
- couponRecordDO.setEffectiveEnd(couponTemplateDO.getUsageEndDate());
- }
- if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.GET_AFTER_TIME.getType())){
- // 领取后有段时间 领取后有效时间
- // 根据发放后有效期来设置时间
- if (couponTemplateDO.getUsageTimeNum() == null || couponTemplateDO.getUsageTimeNum() <= 0) {
- throw new IllegalArgumentException("使用时间数量必须为正整数");
+ RLock lock = redissonClient.getLock(String.format(COUPON_KEY, couponTemplateDO.getId()));
+ try {
+ // 获取锁，最多等待 10 秒，锁自动释放时间 30 秒
+ if (lock.tryLock(10, 30, TimeUnit.SECONDS)) {
+ try {
+ // 活动优惠券 根据优惠券的发放数量来控制有没有超发
+ if(StringUtils.isNotBlank(couponTemplateDO.getCategory()) &&
+ couponTemplateDO.getCategory().equals(CouponCategoryEnum.ACTIVITY.getStatus())
+ ){
+ // 获取当前优惠券已经领取的数量
+ final Integer gainTotal = getExistGainCouponRecordAmountById(couponTemplateDO.getId());
+ if(couponTemplateDO.getCouponAmount().compareTo(gainTotal)<=0){
+ throw new ValidationException("当前优惠券已经领完！");
+ }
}
- LocalDateTime currentTime = LocalDateTime.now();
- couponRecordDO.setEffectiveStart(currentTime);
- if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.DAY.getType())) {
- // 天
- couponRecordDO.setEffectiveEnd(currentTime.plusDays(couponTemplateDO.getUsageTimeNum()));
- }
- if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.HOUR.getType())) {
- // 小时
- couponRecordDO.setEffectiveEnd(currentTime.plusHours(couponTemplateDO.getUsageTimeNum()));
- }
- if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.MINUTE.getType())) {
- // 分钟
- couponRecordDO.setEffectiveEnd(currentTime.plusMinutes(couponTemplateDO.getUsageTimeNum()));
+ if(StringUtils.isNotBlank(couponTemplateDO.getCategory())
+ && couponTemplateDO.getCategory().equals(CouponCategoryEnum.POINT.getStatus()
+ )){
+ // 获取当前优惠券已经领取的数量
+
+ if(couponTemplateDO.getCouponAmount()<=0){
+ throw new ValidationException("当前优惠券已经领完！");
+ }else{
+ couponTemplateDO.setCouponAmount(couponTemplateDO.getCouponAmount()-1);
+ // 更新库存
+ couponTemplateService.updateById(couponTemplateDO);
+ }
+
}
+ // 根据用户领取设置的getLimit 查看当前用户是否已经超领优惠券
+ if(StringUtils.isNotBlank(couponTemplateDO.getCategory()) && couponTemplateDO.getCategory().equals(CouponCategoryEnum.ACTIVITY.getStatus()) ){
+ // 查看当前优惠券的领取时间在不在设置的领取时间范围类
+ LocalDateTime now = LocalDateTime.now();
+ // 判断当前时间是否在领取时间范围内
+ if (!(now.isAfter(couponTemplateDO.getGetStartDate()) && now.isBefore(couponTemplateDO.getGetEndDate()))) {
+ throw new ValidationException("当前时间不在优惠券的领取时间范围内，无法操作！");
+ }
+
+ // 获取当前优惠券已经领取的数量
+ final Integer customGainTotal = getUserGainCouponRecordAmountById(couponTemplateDO.getId(),customer.getId());
+ if(couponTemplateDO.getGetLimit().compareTo(customGainTotal)<=0){
+ throw new ValidationException("超出个人领取限制，每人限领"+couponTemplateDO.getGetLimit()+"张！");
+ }
+ }
+
+
+ CouponRecordDO couponRecordDO=new CouponRecordDO();
+ BeanUtils.copyProperties(dto,couponRecordDO);
+ couponRecordDO.create(SecurityUtils.getUserId());
+ // 设置为待使用状态
+ couponRecordDO.setStatus(CouponUsedStatusEnum.UNUSED.getType());
+
+ // 根据商户设置用户id
+ if(StringUtils.isBlank(dto.getUserId()) && StringUtils.isNotBlank(customer.getUserId())){
+ couponRecordDO.setUserId(customer.getUserId());
+ }
+
+ // 优惠券字段冗余
+ couponRecordDO.setCategory(couponTemplateDO.getCategory());
+ couponRecordDO.setCouponCode(couponTemplateDO.getCouponCode());
+ couponRecordDO.setCouponName(couponTemplateDO.getCouponName());
+ couponRecordDO.setCouponDiscountValue(couponTemplateDO.getCouponDiscountValue());
+ couponRecordDO.setMinOrderAmount(couponTemplateDO.getMinOrderAmount());
+ couponRecordDO.setGetType(couponTemplateDO.getGetType());
+ couponRecordDO.setCouponDiscountType(couponTemplateDO.getCouponDiscountType());
+ couponRecordDO.setGetUserType(couponTemplateDO.getGetUserType());
+ couponRecordDO.setPoint(couponTemplateDO.getPoint());
+ couponRecordDO.setMemberId(couponTemplateDO.getMemberId());
+ couponRecordDO.setImageUrl(couponTemplateDO.getImageUrl());
+ couponRecordDO.setCouponDescription(couponTemplateDO.getCouponDescription());
+
+
+ // 根据优惠券模板来计算优惠券的生效开始时间和结束时间
+ if(StringUtils.isNotBlank(couponTemplateDO.getCategory()) && couponTemplateDO.getCategory().equals(CouponCategoryEnum.MEMBER.getStatus())){
+ // 如果是会员优惠券的话，则设置为优惠券的使用条件为优惠券的时间
+ couponRecordDO.setEffectiveStart(couponTemplateDO.getUsageStartDate());
+ couponRecordDO.setEffectiveEnd(couponTemplateDO.getUsageEndDate());
+ }else{
+ // 非会员的根据领取时间类型来计算优惠券的时间
+ if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.GET.getType())){
+ // 与领取时间一致
+ couponRecordDO.setEffectiveStart(couponTemplateDO.getGetStartDate());
+ couponRecordDO.setEffectiveEnd(couponTemplateDO.getGetEndDate());
+ }
+ if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.FIXED.getType())){
+ // 固定时间
+ couponRecordDO.setEffectiveStart(couponTemplateDO.getUsageStartDate());
+ couponRecordDO.setEffectiveEnd(couponTemplateDO.getUsageEndDate());
+ }
+ if(StringUtils.isNotBlank(couponTemplateDO.getUsageType()) && couponTemplateDO.getUsageType().equals(CouponUsageTypeEnum.GET_AFTER_TIME.getType())){
+ // 领取后有段时间 领取后有效时间
+ // 根据发放后有效期来设置时间
+ if (couponTemplateDO.getUsageTimeNum() == null || couponTemplateDO.getUsageTimeNum() <= 0) {
+ throw new ValidationException("使用时间数量必须为正整数");
+ }
+ LocalDateTime currentTime = LocalDateTime.now();
+ couponRecordDO.setEffectiveStart(currentTime);
+ if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.DAY.getType())) {
+ // 天
+ couponRecordDO.setEffectiveEnd(currentTime.plusDays(couponTemplateDO.getUsageTimeNum()));
+ }
+ if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.HOUR.getType())) {
+ // 小时
+ couponRecordDO.setEffectiveEnd(currentTime.plusHours(couponTemplateDO.getUsageTimeNum()));
+ }
+ if (couponTemplateDO.getUsageTimeType().equals(CouponUsageTimeTypeEnum.MINUTE.getType())) {
+ // 分钟
+ couponRecordDO.setEffectiveEnd(currentTime.plusMinutes(couponTemplateDO.getUsageTimeNum()));
+ }
+
+ }
+ }
+
+ // 手动设置ID
+ couponRecordDO.setId(IdUtil.simpleUUID());
+ return baseMapper.insert(couponRecordDO)>0;
+
+ } finally {
+ lock.unlock();
}
}
-
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ // 处理异常
}
+ return false;
- return baseMapper.insert(couponRecordDO)>0;
}
@Override
@@ -161,7 +231,7 @@
// 优惠券字段冗余
final CouponTemplateDO couponTemplateDO = couponTemplateService.getById(dto.getCouponId());
if(null!=couponTemplateDO){
- couponRecordDO.setCategory(couponTemplateDO.getGetUserType());
+ couponRecordDO.setCategory(couponTemplateDO.getCategory());
couponRecordDO.setCouponCode(couponTemplateDO.getCouponCode());
couponRecordDO.setCouponName(couponTemplateDO.getCouponName());
couponRecordDO.setCouponDiscountValue(couponTemplateDO.getCouponDiscountValue());
@@ -199,6 +269,7 @@
public boolean grantVipCouponRecordList() {
try{
+
LocalDateTime now = LocalDateTime.now();
LocalDateTime firstDayStart = now.with(TemporalAdjusters.firstDayOfMonth()).withHour(0).withMinute(0).withSecond(0).withNano(0);
LocalDateTime lastDayEnd = now.with(TemporalAdjusters.lastDayOfMonth()).withHour(23).withMinute(59).withSecond(59).withNano(0);
@@ -208,21 +279,32 @@
// 遍历所有相同等级用户信息，并根据优惠券设置的规则构造优惠券
final List<CouponTemplateDO> updateCouponTemplateList = vipTemplateList.stream().map(couponTemplateDO -> {
- final List<User> vipGradeUserList = userService.getVipGradeUserList(couponTemplateDO.getVipGrade());
- final List<CouponRecordDO> gradeCouponRecordList = vipGradeUserList.stream().map(user -> {
+ // 获取当前等级下的所有用户
+ final List<Customer> customerList = customerService.getCustomerListByLevelId(couponTemplateDO.getMemberId());
+
+ final List<CouponRecordDO> gradeCouponRecordList = customerList.stream().map(customer -> {
CouponRecordDO couponRecordDO = new CouponRecordDO();
BeanUtils.copyProperties(couponTemplateDO, couponRecordDO);
couponRecordDO.setId(IdUtil.simpleUUID());
couponRecordDO.setCouponId(couponTemplateDO.getId());
- couponRecordDO.setUserId(user.getId());
+ couponRecordDO.setUserId(customer.getUserId());
+ couponRecordDO.setCustomerId(customer.getId());
couponRecordDO.setStatus(CouponUsedStatusEnum.UNUSED.getType());
couponRecordDO.setEffectiveStart(firstDayStart);
couponRecordDO.setEffectiveEnd(lastDayEnd);
-
+ couponRecordDO.setMemberId(couponTemplateDO.getMemberId());
+ couponRecordDO.setImageUrl(couponTemplateDO.getImageUrl());
+ couponRecordDO.setCouponDescription(couponTemplateDO.getCouponDescription());
// 创建信息
couponRecordDO.create();
- return couponRecordDO;
- }).collect(Collectors.toList());
+ if(!checkCurMonVipCouponExists(couponRecordDO.getCouponId(),couponRecordDO.getCustomerId(),firstDayStart,lastDayEnd)){
+ return couponRecordDO;
+ }else{
+ return null;
+ }
+
+ }).filter(Objects::nonNull)
+ .collect(Collectors.toList());
// 批量保存等级下的优惠券信息
saveBatch(gradeCouponRecordList);
@@ -231,6 +313,9 @@
couponTemplateDO.setUsageEndDate(lastDayEnd);
couponTemplateDO.setGetStartDate(firstDayStart);
couponTemplateDO.setGetEndDate(lastDayEnd);
+
+ // 设置总数为当前会员的人数
+ couponTemplateDO.setCouponAmount(CollectionUtils.isNotEmpty(customerList)?customerList.size():0);
// 设置默认类型固定
couponTemplateDO.setUsageType(CouponUsageTypeEnum.FIXED.getType());
@@ -251,7 +336,7 @@
}
@Override
- public boolean expiredCouponRecordByListCurMonth() {
+ public boolean expiredCouponRecordLastMon() {
try{
LocalDateTime now = LocalDateTime.now();
@@ -298,13 +383,248 @@
}
@Override
- public int getExistCouponAmount(QueryExistCouponDTO dto) {
+ public Integer getExistCouponAmount(QueryExistCouponDTO dto) {
QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
queryWrapper.lambda().eq(CouponRecordDO::getDeleted, TrueOrFalseEnum.FALSE.isFlag())
.eq(StringUtils.isNotBlank(dto.getCouponId()), CouponRecordDO::getCouponId,dto.getCouponId())
- .eq(StringUtils.isNotBlank(dto.getCustomerId()),CouponRecordDO::getCustomerId,dto.getCustomerId())
+ .eq(null!=dto.getCustomerId(),CouponRecordDO::getCustomerId,dto.getCustomerId())
.eq(StringUtils.isNotBlank(dto.getCategory()),CouponRecordDO::getCategory,dto.getCategory());
return baseMapper.selectCount(queryWrapper);
}
+
+ @Override
+ public Integer getExistGainCouponRecordAmountById(String couponId) {
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted, TrueOrFalseEnum.FALSE.isFlag())
+ .eq(StringUtils.isNotBlank(couponId), CouponRecordDO::getCouponId,couponId)
+ ;
+ return baseMapper.selectCount(queryWrapper);
+ }
+
+ @Override
+ public Integer getUserGainCouponRecordAmountById(String couponId, Long customerId) {
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted, TrueOrFalseEnum.FALSE.isFlag())
+ .eq(StringUtils.isNotBlank(couponId), CouponRecordDO::getCouponId,couponId)
+ .eq(null!=customerId,CouponRecordDO::getCustomerId,customerId)
+ ;
+
+ return baseMapper.selectCount(queryWrapper);
+ }
+
+ @Override
+ public Integer getUserGainCouponRecordAmountByUserId(String couponId, String userId) {
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted, TrueOrFalseEnum.FALSE.isFlag())
+ .eq(StringUtils.isNotBlank(couponId), CouponRecordDO::getCouponId,couponId)
+ .eq(null!=userId,CouponRecordDO::getUserId,userId)
+ ;
+
+ return baseMapper.selectCount(queryWrapper);
+ }
+
+ @Override
+ public List<CouponRecordVO> getMineCouponRecordList(QueryMineCouponRecordDTO dto) {
+ checkCouponExpired(dto);
+ return couponRecordMapperCustom.getMineCouponRecordList(dto);
+ }
+
+ @Override
+ public void checkCouponExpired(QueryMineCouponRecordDTO dto) {
+ if(StringUtils.isBlank(dto.getUserId())){
+ dto.setUserId(SecurityUtils.getUserId());
+ }
+ // 将未使用的优惠券直接过期
+ couponRecordMapperCustom.checkCouponExpired(dto);
+ }
+
+ @Override
+ public boolean checkCurMonVipCouponExists(String couponId, Long customId, LocalDateTime startDateTime, LocalDateTime endDateTime) {
+
+ LocalDateTime now = LocalDateTime.now();
+ LocalDateTime firstDayStart = now.with(TemporalAdjusters.firstDayOfMonth()).withHour(0).withMinute(0).withSecond(0).withNano(0);
+ LocalDateTime lastDayEnd = now.with(TemporalAdjusters.lastDayOfMonth()).withHour(23).withMinute(59).withSecond(59).withNano(0);
+ if(null==startDateTime){
+ startDateTime=firstDayStart;
+ }
+ if(null==endDateTime){
+ endDateTime=lastDayEnd;
+ }
+
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted,TrueOrFalseEnum.FALSE.isFlag())
+ .eq(CouponRecordDO::getCouponId,couponId)
+ .eq(CouponRecordDO::getCustomerId,customId)
+ .eq(CouponRecordDO::getEffectiveStart,startDateTime)
+ .eq(CouponRecordDO::getEffectiveEnd,endDateTime);
+ return baseMapper.selectCount(queryWrapper)>0;
+
+ }
+
+ @Transactional
+ @Override
+ public boolean useCoupon(String couponId, String orderId, BigDecimal orderMount) {
+ // 优惠券为空
+ if(StringUtils.isBlank(couponId)){
+ throw new ValidationException("无效的优惠券");
+ }
+ if(StringUtils.isBlank(orderId)){
+ throw new ValidationException("订单id不能为空");
+ }
+ if(orderMount.compareTo(BigDecimal.ZERO)<=0){
+ throw new ValidationException("订单金额不能小于0");
+ }
+
+ // 验证优惠券存在且有效
+ final CouponRecordDO couponRecordDO = baseMapper.selectById(couponId);
+ if(null==couponRecordDO || StringUtils.isNotBlank(couponRecordDO.getOrderId()) ){
+ throw new ValidationException("无效的优惠券");
+ }
+
+ if(couponRecordDO.getStatus().equals(CouponUsedStatusEnum.USED.getType())){
+ throw new ValidationException("优惠券已经被使用");
+ }
+ if(couponRecordDO.getStatus().equals(CouponUsedStatusEnum.EXPIRED.getType()) || LocalDateTime.now().isAfter(couponRecordDO.getEffectiveEnd())){
+ throw new ValidationException("优惠券已过期");
+ }
+
+ // 根据类型判断是无门槛还是满减，如果是无门槛
+ if(couponRecordDO.getCouponDiscountType().equals(CouponTypeEnum.ZERO.getType())){
+ // 无门槛，查看金额是否大于满减值
+ if(orderMount.compareTo(couponRecordDO.getCouponDiscountValue())<0){
+ throw new ValidationException(String.format("订单金额(%s)小于无门槛的金额(%s)", orderMount, couponRecordDO.getCouponDiscountValue()));
+ }
+ }
+
+ if(couponRecordDO.getCouponDiscountType().equals(CouponTypeEnum.DISCOUNT.getType())){
+ //满减，查看金额是否满足最小订单额
+ if(orderMount.compareTo(couponRecordDO.getMinOrderAmount())<0){
+ throw new ValidationException(String.format("订单金额(%s)小于最低折扣订单金额(%s)", orderMount, couponRecordDO.getMinOrderAmount()));
+ }
+
+ if(orderMount.compareTo(couponRecordDO.getCouponDiscountValue())<0){
+ throw new ValidationException(String.format("订单金额(%s)小于折扣的金额(%s)", orderMount, couponRecordDO.getCouponDiscountValue()));
+ }
+ }
+
+ // 查看当前的优惠券是否是当前人员的
+ if(!SecurityUtils.getUserId().equals(couponRecordDO.getUserId())){
+ throw new ValidationException("优惠券不属于当前人员");
+ }
+
+ // 优惠券使用操作
+ couponRecordDO.setStatus(CouponUsedStatusEnum.USED.getType());
+ couponRecordDO.setUsedTime(LocalDateTime.now());
+ couponRecordDO.setOrderId(orderId);
+
+ return baseMapper.updateById(couponRecordDO)>0;
+
+ }
+
+
+ @Transactional
+ @Override
+ public boolean cancelCouponUsage(String orderId) {
+ // 查询订单使用的优惠券
+ final CouponRecordDO couponRecordDO = getCouponByOrderId(orderId);
+ if(null==couponRecordDO){
+ return false;
+ }
+ log.info("优惠券退回之前："+ JSON.toJSONString(couponRecordDO));
+ couponRecordDO.setStatus(CouponUsedStatusEnum.UNUSED.getType());
+ couponRecordDO.setUsedTime(null);
+ couponRecordDO.setOrderId(null);
+ log.info("优惠券退回之后："+ JSON.toJSONString(couponRecordDO));
+ return baseMapper.updateById(couponRecordDO)>0;
+ }
+
+ @Override
+ public List<CouponRecordDO> getCouponListByOrderId(String orderId) {
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted,TrueOrFalseEnum.FALSE.isFlag())
+ .eq(CouponRecordDO::getOrderId,orderId);
+
+ return baseMapper.selectList(queryWrapper);
+ }
+
+ @Override
+ public CouponRecordDO getCouponByOrderId(String orderId) {
+ final List<CouponRecordDO> couponRecordDOList = getCouponListByOrderId(orderId);
+ if(CollectionUtils.isNotEmpty(couponRecordDOList)){
+ return couponRecordDOList.get(0);
+ }
+ return null;
+ }
+
+ @Override
+ public boolean checkUserCouponExists(String couponId, Long customId) {
+ QueryWrapper<CouponRecordDO> queryWrapper=new QueryWrapper<>();
+ queryWrapper.lambda().eq(CouponRecordDO::getDeleted,TrueOrFalseEnum.FALSE.isFlag())
+ .eq(CouponRecordDO::getCouponId,couponId)
+ .eq(CouponRecordDO::getCustomerId,customId)
+ ;
+ return baseMapper.selectCount(queryWrapper)>0;
+ }
+
+ @Override
+ public boolean expireCouponRecordAll() {
+
+ return couponRecordMapperCustom.expireCouponRecordAll();
+ }
+
+ @Override
+ public CouponRecordVO getUnusedFit(QueryMineCouponRecordDTO dto) {
+
+ /**
+ * ①.先查询出满足条件的优惠券(满减面值最大)
+ * ②.查询面值最大的优惠券（无门槛面值最大）
+ * ③查询过期时间早的优惠券④在满足③的条件下，优先使用无门槛优惠券
+ * ④基于以上规则如果还存在相同的优惠券，任意选择一张优惠券即可
+ */
+
+ CouponRecordVO bestCoupon=null;
+ // 查出我所有可用优惠券
+ final List<CouponRecordVO> mineCouponRecordList = getMineCouponRecordList(dto);
+
+ if(null!=dto.getOrderAmount() && CollectionUtils.isNotEmpty(mineCouponRecordList)){
+ // ①.先查询出满足条件的优惠券
+ // 遍历优惠券列表，找出所有minOrderAmount >= dto.orderAmount ，且couponDiscountValue 最大的优惠券
+ // 筛选符合条件并找出优惠面值最大的优惠券
+ bestCoupon = mineCouponRecordList.stream()
+ // 筛选出 minOrderAmount >= dto.orderAmount 的优惠券并且优惠券类型是discount的
+ .filter(coupon -> coupon.getCouponDiscountType().equals(CouponTypeEnum.DISCOUNT.getType()))
+ .filter(coupon -> coupon.getMinOrderAmount().compareTo(dto.getOrderAmount()) <= 0)
+ // 按 couponDiscountValue 倒序排序
+ .max(Comparator.comparing(CouponRecordVO::getCouponDiscountValue))
+ // 如果没有符合条件的优惠券，使用 Optional.orElse(null) 返回 null
+ .orElse(null);
+
+ if(null==bestCoupon){
+ // ②.查询面值最大的优惠券（无门槛面值最大）
+// 过滤出discountType 是zero的优惠券，并根据couponDiscountValue倒序排序
+ bestCoupon = mineCouponRecordList.stream()
+ .filter(coupon -> coupon.getCouponDiscountType().equals(CouponTypeEnum.ZERO.getType()))
+ .max(Comparator.comparing(CouponRecordVO::getCouponDiscountValue))
+ .orElse(null);
+
+ // ③查询过期时间早的优惠券
+ if(null!=bestCoupon){
+ final BigDecimal zeroMaxCouponDiscountValue = bestCoupon.getCouponDiscountValue();
+ // 过滤出discountType 是zero的优惠券，且couponDiscountValue与bestCoupon的couponDiscountValue面值一样的优惠券，并根据effectiveEnd正序排，获取第一条数据
+ CouponRecordVO effectiveEndEarlyCoupon= mineCouponRecordList.stream()
+ .filter(coupon -> coupon.getCouponDiscountType().equals(CouponTypeEnum.ZERO.getType()))
+ .filter(coupon -> coupon.getCouponDiscountValue().compareTo(zeroMaxCouponDiscountValue)==0)
+ .min(Comparator.comparing(CouponRecordVO::getEffectiveEnd))
+ .orElse(null);
+ if(null!=effectiveEndEarlyCoupon){
+ bestCoupon=effectiveEndEarlyCoupon;
+ }
+ }
+
+ }
+ }
+ return bestCoupon;
+
+ }
}
--
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