提交普通拍品、资讯文章、商城商品收藏基础代码

mitao

2024-05-27 c26092c422c4b72fa5d51a38f6de1b48ab1ccd87

 ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsGroupPurchaseServiceImpl.java

@@ -1,10 +1,40 @@
package com.ruoyi.goods.service.impl;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.ruoyi.common.core.enums.GroupStatusEnum;
import com.ruoyi.common.core.enums.ListingStatusEnum;
import com.ruoyi.common.core.enums.PaymentMethodEnum;
import com.ruoyi.common.core.enums.StartStatusEnum;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.utils.page.BeanUtils;
import com.ruoyi.common.core.utils.page.PageDTO;
import com.ruoyi.common.redis.service.RedisService;
import com.ruoyi.goods.controller.management.dto.GoodsGroupPurchaseDTO;
import com.ruoyi.goods.controller.management.dto.GoodsGroupPurchaseQuery;
import com.ruoyi.goods.controller.management.vo.GoodsGroupPurchaseVO;
import com.ruoyi.goods.domain.GoodsGroupPurchase;
import com.ruoyi.goods.mapper.GoodsGroupPurchaseMapper;
import com.ruoyi.goods.service.IGoodsGroupPurchaseService;
import com.ruoyi.goods.service.IGoodsSkuService;
import com.ruoyi.goods.service.async.AsyncMethodService;
import com.ruoyi.system.api.constants.DelayTaskEnum;
import com.ruoyi.system.api.constants.NotificationTypeConstant;
import com.ruoyi.system.api.domain.GoodsSku;
import com.ruoyi.system.api.domain.Order;
import com.ruoyi.system.api.domain.dto.ListStatusDTO;
import com.ruoyi.system.api.feignClient.OrderClient;
import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import util.WebSocketUsers;

/**
 * <p>
@@ -14,7 +44,192 @@
 * @author mitao
 * @since 2024-05-16
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class GoodsGroupPurchaseServiceImpl extends ServiceImpl<GoodsGroupPurchaseMapper, GoodsGroupPurchase> implements IGoodsGroupPurchaseService {

    private final OrderClient orderClient;
    private final IGoodsSkuService goodsSkuService;
    private final AsyncMethodService asyncMethodService;
    private final RedisService redisService;
    // 创建一个静态共享的ObjectMapper实例以重用
    private static final ObjectMapper objectMapper = new ObjectMapper();
    /**
     * 获取团购商品列表的分页数据
     *
     * @param query 团购商品查询对象
     * @return PageDTO < GoodsGroupPurchaseVO>
     */
    @Override
    public PageDTO<GoodsGroupPurchaseVO> getGoodsGroupPurchasePage(GoodsGroupPurchaseQuery query) {
        return PageDTO.of(
                baseMapper.getGoodsGroupPurchasePage(query.getGoodsSkuName(),
                        new Page<>(query.getPageCurr(), query.getPageSize())));
    }

    /**
     * 添加/编辑 团购商品
     *
     * @param dto 团购商品数据传输对象
     */
    @Override
    public void saveGoodsGroupPurchase(GoodsGroupPurchaseDTO dto) {
        GoodsGroupPurchase goodsGroupPurchase = BeanUtils.copyBean(dto, GoodsGroupPurchase.class);
        if (StringUtils.isNull(dto.getId())) {
            if (StringUtils.isNull(dto.getGoodsSkuId())) {
                throw new ServiceException("商品id不能为空");
            }
            this.save(goodsGroupPurchase);
            GoodsSku goodsSku = goodsSkuService.getById(dto.getGoodsSkuId());
            if (StringUtils.isNull(goodsSku)) {
                throw new ServiceException("商品不存在");
            }
            int groupPurchaseStock = dto.getLimitNumber() * dto.getGroupSize();
            goodsSkuService.lambdaUpdate()
                    .set(GoodsSku::getStock, goodsSku.getStock() - groupPurchaseStock)
                    .ge(GoodsSku::getStock, groupPurchaseStock)
                    .eq(GoodsSku::getId, goodsSku.getId());
        } else {
            GoodsGroupPurchase groupPurchase = this.getById(dto.getId());
            if (StringUtils.isNull(groupPurchase)) {
                throw new ServiceException("团购商品不存在");
            }
            int originGroupStock = groupPurchase.getLimitNumber() * groupPurchase.getGroupSize();
            GoodsSku goodsSku = goodsSkuService.getById(dto.getGoodsSkuId());
            if (StringUtils.isNull(goodsSku)) {
                throw new ServiceException("商品不存在");
            }
            int groupPurchaseStock = dto.getLimitNumber() * dto.getGroupSize();
            int latestStock = originGroupStock - groupPurchaseStock;
            goodsSkuService.lambdaUpdate()
                    .set(GoodsSku::getStock,
                            goodsSku.getStock() + latestStock)
                    .ge(GoodsSku::getStock, latestStock)
                    .eq(GoodsSku::getId, goodsSku.getId());
            this.updateById(goodsGroupPurchase);
            asyncMethodService.groupPurchaseScheduleTask(goodsGroupPurchase);
        }
    }

    /**
     * 查看详情
     *
     * @param id 团购商品id
     * @return GoodsGroupPurchaseVO 团购商品视图对象
     */
    @Override
    public GoodsGroupPurchaseVO getGoodsGroupPurchaseDetail(Long id) {
        GoodsGroupPurchase groupPurchase = this.getById(id);
        if (StringUtils.isNull(groupPurchase)) {
            throw new ServiceException("团购商品不存在");
        }
        GoodsGroupPurchaseVO vo = BeanUtils.copyBean(groupPurchase,
                GoodsGroupPurchaseVO.class);
        //远程调用订单服务查询商品购买总数
        Integer num = orderClient.getGroupPurchasesGoodsNum(groupPurchase.getId()).getData();
        vo.setBuyNumber(num);
        return vo;
    }

    /**
     * 下架/上架 团购商品
     *
     * @param dto 商品上下架状态对象
     */
    @Override
    public void updStatus(ListStatusDTO dto) {
        GoodsGroupPurchase groupPurchase = this.getById(dto.getId());
        if (StringUtils.isNull(groupPurchase)) {
            throw new ServiceException("团购商品不存在");
        }
        //判断商品状态
        if (dto.getListingStatus().equals(ListingStatusEnum.REMOVED_FROM_THE_SHELF)) {
            if (groupPurchase.getStartStatus().equals(StartStatusEnum.STARTED)) {
                throw new ServiceException("该商品已开始团购，不能下架");
            }
            //移除该团购商品延时任务
            redisService.deleteObject(DelayTaskEnum.GROUP_PURCHASES_START_TASK.getCode() + "-"
                    + groupPurchase.getId());
            redisService.deleteObject(
                    DelayTaskEnum.GROUP_PURCHASES_END_TASK.getCode() + "-" + groupPurchase.getId());
        }
        //修改状态
        groupPurchase.setListingStatus(dto.getListingStatus());
        this.updateById(groupPurchase);
    }

    /**
     * 团购商品开始团购
     *
     * @param groupPurchaseId 团购商品id
     */
    @Override
    public void startGroupPurchase(Long groupPurchaseId) throws JsonProcessingException {
        log.info(">>>>>>>>>>>>>>>>>>>>{}团购商品开始团购<<<<<<<<<<<<<<<<<<<<", groupPurchaseId);
        GoodsGroupPurchase groupPurchase = this.getById(groupPurchaseId);
        if (StringUtils.isNotNull(groupPurchase)) {
            this.lambdaUpdate().set(GoodsGroupPurchase::getStartStatus, StartStatusEnum.STARTED)
                    .eq(GoodsGroupPurchase::getId, groupPurchaseId).update();
            Map<String, Object> map = new ConcurrentHashMap<>();
            map.put("notification_type", NotificationTypeConstant.GROUP_PURCHASE);
            map.put("notification_time", LocalDateTime.now());
            map.put("message_type", "start");
            String msg = objectMapper.writeValueAsString(map);
            WebSocketUsers.sendMessageToUsersByText(msg);
            log.info("===================>发送websocket通知，消息体{}", msg);
        }
    }

    /**
     * 团购商品结束团购
     *
     * @param groupPurchaseId 团购商品id
     */
    @Override
    public void endGroupPurchase(Long groupPurchaseId) throws JsonProcessingException {
        log.info(">>>>>>>>>>>>>>>>>>>>{}团购商品结束团购<<<<<<<<<<<<<<<<<<<<", groupPurchaseId);
        GoodsGroupPurchase groupPurchase = this.getById(groupPurchaseId);
        if (StringUtils.isNotNull(groupPurchase)) {
            this.lambdaUpdate().set(GoodsGroupPurchase::getStartStatus, StartStatusEnum.ENDED)
                    .eq(GoodsGroupPurchase::getId, groupPurchaseId).update();
            Map<String, Object> map = new ConcurrentHashMap<>();
            map.put("notification_type", NotificationTypeConstant.GROUP_PURCHASE);
            map.put("notification_time", LocalDateTime.now());
            map.put("message_type", "end");
            String msg = objectMapper.writeValueAsString(map);
            WebSocketUsers.sendMessageToUsersByText(msg);
            log.info("===================>发送websocket通知，消息体{}", msg);
        }
    }

    /**
     * 立即结束
     *
     * @param id 团购商品id
     */
    @Override
    public void stopImmediately(Long id) {
        GoodsGroupPurchase groupPurchase = this.getById(id);
        if (StringUtils.isNull(groupPurchase)) {
            throw new ServiceException("团购商品不存在");
        }
        //判断商品状态，未成团则查询关联订单，进行退款；成团就直接修改状态
        if (groupPurchase.getGroupStatus().equals(GroupStatusEnum.TO_FORM_A_GROUP)) {
            //查询关联订单
            List<Order> orderList = orderClient.getOrderByGroupPurchaseId(id).getData();
            for (Order order : orderList) {
                if (PaymentMethodEnum.ALIPAY.equals(order.getPaymentMethod())) {
                    //TODO 退款
                }
                if (PaymentMethodEnum.WECHAT.equals(order.getPaymentMethod())) {
                    //TODO 退款
                }
            }
        } else {
            this.lambdaUpdate()
                    .set(GoodsGroupPurchase::getStartStatus, StartStatusEnum.ENDED)
                    .eq(GoodsGroupPurchase::getId, id).update();
        }
    }
}