feat(mall): 新增活动管理功能

KKSU

2025-01-07 3ec9370506559da6c9bb1fa788645f15ec9f582b

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

@@ -1,17 +1,182 @@
package cc.mrbird.febs.mall.service.impl;

import cc.mrbird.febs.mall.entity.MallActivity;
import cc.mrbird.febs.mall.mapper.MallActivityMapper;
import cc.mrbird.febs.common.entity.FebsResponse;
import cc.mrbird.febs.common.entity.QueryRequest;
import cc.mrbird.febs.common.enumerates.ActivityTypeEnum;
import cc.mrbird.febs.common.enumerates.GoodsTypeEnum;
import cc.mrbird.febs.common.enumerates.YesOrNoOrIngEnum;
import cc.mrbird.febs.common.utils.MallUtils;
import cc.mrbird.febs.mall.entity.*;
import cc.mrbird.febs.mall.mapper.*;
import cc.mrbird.febs.mall.service.IActivityService;
import cc.mrbird.febs.mall.vo.AdminActivityAddDto;
import cc.mrbird.febs.mall.vo.AdminDiscountVO;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@Service
@RequiredArgsConstructor
@Transactional
public class ActivityServiceImpl extends ServiceImpl<MallActivityMapper, MallActivity> implements IActivityService {

    private final CouponGoodsMapper couponGoodsMapper;
    private final MallGoodsMapper mallGoodsMapper;
    private final MallGoodsSkuMapper mallGoodsSkuMapper;
    private final MallGoodsStyleMapper mallGoodsStyleMapper;
    @Override
    public IPage<MallActivity> getAdminListInPage(MallActivity mallActivity, QueryRequest request) {
        Page<MallActivity> page = new Page<>(request.getPageNum(), request.getPageSize());
        LambdaQueryWrapper<MallActivity> mallActivityLambdaQueryWrapper = new LambdaQueryWrapper<>();
        String name = mallActivity.getName();
        if(StrUtil.isNotEmpty(name)){
            mallActivityLambdaQueryWrapper.like(MallActivity::getName,name);
        }
        Integer state = mallActivity.getState();
        if(ObjectUtil.isNotEmpty(state)){
            mallActivityLambdaQueryWrapper.eq(MallActivity::getState,state);
        }
        Page<MallActivity> mallActivityPage = this.baseMapper.selectPage(page, mallActivityLambdaQueryWrapper);
        return mallActivityPage;
    }

    @Override
    public FebsResponse addActivity(AdminActivityAddDto adminActivityAddDto) {

        MallActivity mallActivity = new MallActivity();
        mallActivity.setName(adminActivityAddDto.getName());
        String hd = MallUtils.getOrderNum("HD");
        mallActivity.setCode(hd);
        mallActivity.setStartTime(adminActivityAddDto.getStartTime());
        mallActivity.setEndTime(adminActivityAddDto.getEndTime());
        mallActivity.setMaxImage(adminActivityAddDto.getMaxImage());
        mallActivity.setMinImage(adminActivityAddDto.getMinImage());
        mallActivity.setState(YesOrNoOrIngEnum.NO.getValue());
        mallActivity.setType(adminActivityAddDto.getType());

        List<Long> activityGoodsIds = adminActivityAddDto.getActivityGoodsIds();
        String collect = activityGoodsIds.stream()
                .map(String::valueOf) // 将 Long 转换为 String
                .collect(Collectors.joining(","));// 使用逗号连接
        mallActivity.setActivityGoodsIds(collect);
        this.baseMapper.insert(mallActivity);

        if(ActivityTypeEnum.ZHE_KOU.getValue() == adminActivityAddDto.getType()){
            BigDecimal discountSize = adminActivityAddDto.getDiscountSize();
            mallActivity.setDiscountSize(discountSize);
            addDiscountGoods(mallActivity.getId(),discountSize,activityGoodsIds);
        }

        if(ActivityTypeEnum.YOU_HUI_JUAN.getValue() == adminActivityAddDto.getType()){
            mallActivity.setCouponId(adminActivityAddDto.getCouponId());
            addCouponGoods(adminActivityAddDto.getCouponId(),activityGoodsIds);
        }

        return new FebsResponse().success().data("操作成功");
    }

    private void addDiscountGoods(Long activityId,BigDecimal discountSize, List<Long> goodsIds){
        //将对应选中的商品按照这个折扣力度重新计算一遍
        List<MallGoods> mallGoods = mallGoodsMapper.selectList(
                new LambdaQueryWrapper<MallGoods>()
                        .eq(MallGoods::getIsNormal, GoodsTypeEnum.PU_TONG.getValue())
                        .in(MallGoods::getId, goodsIds)
        );
        if(CollUtil.isNotEmpty(mallGoods)){
            //复制对应的商品的规则
            for(MallGoods mallGoodsItem:mallGoods){
                Long goodsId = mallGoodsItem.getId();
                //新增活动商品
                Long goodsIdNew = addGoodsEntity(activityId, discountSize, mallGoodsItem);

                List<MallGoodsStyle> mallGoodsStyles = mallGoodsStyleMapper.selectList(
                        new LambdaQueryWrapper<MallGoodsStyle>()
                        .eq(MallGoodsStyle::getGoodsId, goodsId)
                );

                if(CollUtil.isNotEmpty(mallGoodsStyles)){
                    for(MallGoodsStyle mallGoodsStyleItem:mallGoodsStyles){
                        Long styleItemId = mallGoodsStyleItem.getId();

                        Long styleItemIdNew = addGoodsStyleEntity(goodsIdNew, mallGoodsStyleItem);
                        List<MallGoodsSku> mallGoodsSkus = mallGoodsSkuMapper.selectList(
                                new LambdaQueryWrapper<MallGoodsSku>()
                                .eq(MallGoodsSku::getStyleId, styleItemId)
                                .eq(MallGoodsSku::getGoodsId, goodsId)
                        );
                        if(CollUtil.isNotEmpty(mallGoodsSkus)){
                            for(MallGoodsSku mallGoodsSkuItem:mallGoodsSkus){
                                addGoodsSkuEntity(goodsIdNew,styleItemIdNew,discountSize,mallGoodsSkuItem);
                            }
                        }
                    }
                }
            }
        }
    }

    private Long addGoodsEntity(Long activityId,BigDecimal discountSize,MallGoods mallGoodsItem){
        MallActivity mallActivity = this.baseMapper.selectById(activityId);
        mallGoodsItem.setIsNormal(GoodsTypeEnum.HUO_DONG.getValue());
        mallGoodsItem.setGoodsName(mallActivity.getName()+mallGoodsItem.getGoodsName());
        mallGoodsItem.setActivityId(mallActivity.getId());
        BigDecimal presentPrice = new BigDecimal(mallGoodsItem.getPresentPrice()).multiply(discountSize).setScale(2, RoundingMode.DOWN);
        mallGoodsItem.setPresentPrice(presentPrice.toString());
        mallGoodsMapper.insert(mallGoodsItem);
        return mallGoodsItem.getId();
    }

    private Long addGoodsStyleEntity(Long goodsId,MallGoodsStyle mallGoodsStyleItem){
        mallGoodsStyleItem.setGoodsId(goodsId);
        mallGoodsStyleMapper.insert(mallGoodsStyleItem);
        return mallGoodsStyleItem.getId();
    }

    private Long addGoodsSkuEntity(Long goodsId,Long styleId,BigDecimal discountSize,MallGoodsSku sku){
        sku.setGoodsId(goodsId);
        sku.setStyleId(styleId);
        BigDecimal presentPrice = sku.getPresentPrice().multiply(discountSize).setScale(2, RoundingMode.DOWN);
        sku.setPresentPrice(presentPrice);
        mallGoodsSkuMapper.insert(sku);
        return sku.getId();
    }

    private void addCouponGoods(Long couponId,List<Long> goodsIds){
        // 先判断是否存在关联商品，再进行查询和删除
        if (CollUtil.isNotEmpty(couponGoodsMapper.selectList(
                new LambdaQueryWrapper<CouponGoods>()
                        .select(CouponGoods::getId)
                        .eq(CouponGoods::getCouponId, couponId)))) {
            couponGoodsMapper.delete(new LambdaQueryWrapper<CouponGoods>().eq(CouponGoods::getCouponId, couponId));
        }

        // 处理 goodsIds 为 null 或空的情况
        if (CollUtil.isNotEmpty(goodsIds)) {
            for (Long goodsId : goodsIds) {
                CouponGoods couponGoods = new CouponGoods();
                couponGoods.setGoodsId(goodsId);
                couponGoods.setCouponId(couponId);
                couponGoodsMapper.insert(couponGoods);
            }
        }
    }

    @Override
    public FebsResponse discountUpdate(AdminDiscountVO adminDiscountVO) {
        return null;
    }
}