三说会堂事件流程处理

张天森

2022-10-12 3c884ccd7b51edf3b36840bf99de5edaa41a38a7

 springcloud_k8s_panzhihuazhihuishequ/service_community/src/main/java/com/panzhihua/service_community/service/impl/ComBatteryCommodityOrderBargainServiceImpl.java

@@ -1,14 +1,30 @@
package com.panzhihua.service_community.service.impl;

import com.panzhihua.service_community.entity.ComBatteryCommodityOrderBargain;
import com.panzhihua.service_community.dao.ComBatteryCommodityOrderBargainMapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.panzhihua.common.constants.PayCpmstant;
import com.panzhihua.common.model.vos.common.ComBatteryCommodityOrderBargainRecordVo;
import com.panzhihua.common.model.vos.common.ComBatteryCommodityOrderBargainVo;
import com.panzhihua.common.utlis.DateUtils;
import com.panzhihua.common.utlis.MathUtils;
import com.panzhihua.common.utlis.Snowflake;
import com.panzhihua.common.utlis.WxPayUtils;
import com.panzhihua.service_community.dao.*;
import com.panzhihua.service_community.entity.*;
import com.panzhihua.service_community.service.ComBatteryCommodityOrderBargainService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.panzhihua.service_community.service.ComBatteryTradeOrderService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import com.panzhihua.common.model.dtos.common.*;
import com.panzhihua.common.model.vos.R;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.util.*;

/**
 * title: 电动车商城-砍价订单记录表表服务实现类
@@ -20,8 +36,38 @@
 * @author lyq
 * @date 2022-03-29 16:06:35
 */
@Slf4j
@Service("comBatteryCommodityOrderBargainService")
public class ComBatteryCommodityOrderBargainServiceImpl extends ServiceImpl<ComBatteryCommodityOrderBargainMapper, ComBatteryCommodityOrderBargain> implements ComBatteryCommodityOrderBargainService {

    @Resource
    private ComBatteryCommodityActivityMapper commodityActivityMapper;
    @Resource
    private ComBatteryUserAddressMapper userAddressMapper;
    @Resource
    private SysUserMapper userMapper;
    @Resource
    private ComBatteryTradeOrderService tradeOrderService;
    @Resource
    private ComBatteryCommodityMapper commodityMapper;
    @Resource
    private ComBatteryCommoditySpecsMapper commoditySpecsMapper;
    @Resource
    private ComBatteryCommodityOrderMapper commodityOrderMapper;
    @Resource
    private ComBatteryCommodityOrderBargainRecordMapper orderBargainRecordMapper;
    @Value("${min.app.isTest}")
    private Boolean isTest;
    @Value("${min.app.isRefundTest}")
    private Boolean isRefundTest;
    @Value("${min.app.appid}")
    private String appid;
    @Value("${min.app.payKey}")
    private String payKey;
    @Value("${min.app.mchId}")
    private String mchId;
    @Value("${min.app.currencyNotifyUrl}")
    private String currencyNotifyUrl;

    /**
     * description  queryByPage  分页查询
@@ -116,4 +162,274 @@
    public R queryByList(PageComBatteryCommodityOrderBargainDto comBatteryCommodityOrderBargain) {
        return R.ok(this.baseMapper.queryAllByList(comBatteryCommodityOrderBargain));
    }

    /**
     * 创建砍价订单
     * @param orderDto  请求参数
     * @return  创建订单结果
     */
    @Override
    public R startBargain(StartBargainOrderDto orderDto) {
        ComBatteryCommodityActivity commodityActivity = commodityActivityMapper.selectById(orderDto.getActivityId());
        if(commodityActivity == null){
            return R.fail("未查询到砍价活动");
        }
        if(commodityActivity.getEndTime().getTime() - System.currentTimeMillis() <= 0
                || commodityActivity.getStatus().equals(ComBatteryCommodityActivity.Status.YJS)){
            return R.fail("该活动已结束");
        }
        if(commodityActivity.getStatus().equals(ComBatteryCommodityActivity.Status.YXJ)){
            return R.fail("该活动已下架");
        }
        if(commodityActivity.getCommodityNum() <= commodityActivity.getCommoditySaleNum()){
            return R.fail("活动商品已售空");
        }
        Integer notSaleNum = commodityActivity.getCommodityNum() - commodityActivity.getCommoditySaleNum();
        if(notSaleNum <= orderDto.getCount()){
            return R.fail("活动商品库存不足");
        }
        //查询商品
        ComBatteryCommodity commodity = commodityMapper.selectById(orderDto.getCommodityId());
        if(commodity == null){
            return R.fail("未查询到商品信息");
        }
        //查询商品规格信息
        ComBatteryCommoditySpecs commoditySpecs = commoditySpecsMapper.selectById(commodityActivity.getSpecsId());
        if(commoditySpecs == null){
            return R.fail("未查询到商品规格信息");
        }
        if(commoditySpecs.getStock() < orderDto.getCount()){
            return R.fail("该商品库存不足，无法下单");
        }
        //查询用户信息
        SysUser user = userMapper.selectOne(new QueryWrapper<SysUser>().lambda().eq(SysUser::getUserId,orderDto.getUserId()));
        if(user == null){
            return R.fail("未查询到用户信息");
        }
        //查询用户收货地址
        ComBatteryUserAddress userAddress = userAddressMapper.selectById(orderDto.getAddressId());
        if(userAddress == null){
            return R.fail("未查询到用户收货地址");
        }
        Date nowDate = new Date();
        //初始化订单数据
        Integer count = commodityOrderMapper.selectCount(new QueryWrapper<ComBatteryCommodityOrder>()
                .lambda().eq(ComBatteryCommodityOrder::getStatus,ComBatteryCommodityOrder.Status.DKJ)
                .eq(ComBatteryCommodityOrder::getBargainStatus,ComBatteryCommodityOrder.BargainStatus.KJZ)
                .eq(ComBatteryCommodityOrder::getIsDel,ComBatteryCommodityOrder.IsDel.NO)
                .eq(ComBatteryCommodityOrder::getActivityId,orderDto.getActivityId())
                .eq(ComBatteryCommodityOrder::getUserId,orderDto.getUserId()));
        if(count > 0){
            return R.fail("您已存在正在砍价中的订单，不可再发起砍价订单");
        }
        ComBatteryCommodityOrder commodityOrder = getCreateOrder(commodity,userAddress,user,commoditySpecs,orderDto,nowDate,commodityActivity);
        Map<String,Object> resultMap = new HashMap<>(2);
        if(commodityOrderMapper.insert(commodityOrder) > 0){
            //更新活动商品库存
            commodityActivity.setCommoditySaleNum(commodityActivity.getCommoditySaleNum() + orderDto.getCount());
            commodityActivityMapper.updateById(commodityActivity);
            //更新商品库存
            commoditySpecs.setStock(commoditySpecs.getStock() - orderDto.getCount());
            commoditySpecsMapper.updateById(commoditySpecs);
            //微信支付需要调取小程序微信支付
            String result = getWxPayResult(commodityOrder.getFinalAmount(),commodityOrder.getOpenId()
                    ,commodityOrder.getOrderNo(),"购买商品",null);
            resultMap.put("payResult",result);
            resultMap.put("orderId",commodityOrder.getId());
            // 添加微信支付交易流水
            String wxTradeOrderNo = "wx" + Snowflake.getId();
            tradeOrderService.addOrderTradeRecord(user.getUserId(), user.getOpenid(), wxTradeOrderNo, ComBatteryTradeOrder.PayType.WX,
                    commodityOrder.getFinalAmount(), ComBatteryTradeOrder.TradeType.DDC_SHOP, commodityOrder.getId(),
                    commodityOrder.getOrderNo(), user.getUserId(), nowDate);
        }
        return R.ok(resultMap);
    }


    /**
     * 初始化订单数据
     * @param commodity         商品数据
     * @param userAddress       用户收货地址信息
     * @param user              用户数据
     * @param commoditySpecs    商品规格数据
     * @param orderDto          用户请求参数
     * @param nowDate           操作时间
     * @param commodityActivity           拼团活动数据
     * @return  初始化订单数据
     */
    public static ComBatteryCommodityOrder getCreateOrder(ComBatteryCommodity commodity, ComBatteryUserAddress userAddress
            , SysUser user, ComBatteryCommoditySpecs commoditySpecs, StartBargainOrderDto orderDto, Date nowDate
            ,ComBatteryCommodityActivity commodityActivity){
        ComBatteryCommodityOrder commodityOrder = new ComBatteryCommodityOrder();
        commodityOrder.setUserId(user.getUserId());
        commodityOrder.setOpenId(user.getOpenid());
        commodityOrder.setStoreId(commodity.getStoreId());
        commodityOrder.setActivityId(commodityActivity.getId());
        commodityOrder.setCommodityId(commodity.getId());
        commodityOrder.setSpecsId(commoditySpecs.getId());
        commodityOrder.setOrderNo("KJ" + Snowflake.getId());
        commodityOrder.setActivityType(commodityActivity.getType());
        commodityOrder.setStatus(ComBatteryCommodityOrder.Status.DFK);
        commodityOrder.setPayStatus(ComBatteryCommodityOrder.PayStatus.WZF);
        commodityOrder.setIsDel(ComBatteryCommodityOrder.IsDel.NO);
        commodityOrder.setPayType(ComBatteryCommodityOrder.PayType.WX);
        commodityOrder.setCount(orderDto.getCount());
        commodityOrder.setPrice(commodityActivity.getPrice());
        commodityOrder.setAmount(commodityActivity.getPrice().multiply(BigDecimal.valueOf(orderDto.getCount())));
        commodityOrder.setFreight(commodity.getPostage());
        commodityOrder.setFinalAmount(commodityOrder.getAmount().add(commodityOrder.getFreight()));
        commodityOrder.setCreateAt(nowDate);
        commodityOrder.setCreateBy(user.getUserId());
        commodityOrder.setRemark(orderDto.getRemark());
        //收货地址
        commodityOrder.setAddressId(userAddress.getId());
        commodityOrder.setReceivingName(userAddress.getName());
        commodityOrder.setReceivingPhone(userAddress.getPhone());
        commodityOrder.setReceivingRegionCode(userAddress.getProvinceAdcode() + "-" + userAddress.getCityAdcode() + "-" + userAddress.getDistrictAdcode());
        commodityOrder.setReceivingRegion(userAddress.getProvinceName() + userAddress.getCityName() + userAddress.getDistrictName());
        commodityOrder.setReceivingAddress(userAddress.getAddress());
        return commodityOrder;
    }

    /**
     * 小程序唤起微信支付
     *
     * @param money
     *            需要支付的金额
     * @param openId
     *            用户唤起微信支付的openid
     * @param orderNo
     *            业务订单号
     * @param remark
     *            交易备注
     * @return 小程序支付参数
     */
    private String getWxPayResult(BigDecimal money, String openId, String orderNo, String remark,String type) {
        String result = "";
        // 将剩余金额调起微信支付
        if (isTest) {
            money = BigDecimal.valueOf(0.01);
        }
        // 调用wx支付
        result = WxPayUtils.getUnifiedorder(appid, mchId, payKey, currencyNotifyUrl + PayCpmstant.BATTERY_STORE_ACTIVITY_PAY_NOTIFY_URL
                , remark, openId, orderNo, money,type);
        log.info("用户购买商品微信支付返回参数:" + result);
        return result;
    }

    /**
     * 帮好友砍价
     * @param orderDto  请求参数
     * @return  创建订单结果
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public synchronized R startUserBargain(StartUserBargainOrderDto orderDto) {
        //查询砍价记录
        ComBatteryCommodityOrderBargain orderBargain = this.baseMapper.selectById(orderDto.getBargainId());
        if(orderBargain == null){
            return R.fail("未查询到用户砍价记录");
        }
        if(orderBargain.getUserId().equals(orderDto.getUserId())){
            return R.fail("您不可砍自己的订单");
        }
        //查询砍价订单
        ComBatteryCommodityOrder commodityOrder = commodityOrderMapper.selectById(orderBargain.getOrderId());
        if(commodityOrder == null){
            return R.fail("未查询到砍价订单");
        }
        Date nowDate = new Date();
        //判断当前砍价订单的截止时间是否已结束
        Date deadline = DateUtils.addDay(commodityOrder.getCreateAt(),1);
        if(DateUtils.dateCompare(deadline,nowDate) == -1){
            return R.fail("该订单已超过砍价截止时间");
        }
        //查询砍价活动
        ComBatteryCommodityActivity commodityActivity = commodityActivityMapper.selectById(commodityOrder.getActivityId());
        if(commodityActivity != null){
            if(DateUtils.dateCompare(commodityActivity.getEndTime(),nowDate) == -1){
                return R.fail("该砍价活动已结束");
            }
        }
        Integer count = orderBargainRecordMapper.selectCount(new QueryWrapper<ComBatteryCommodityOrderBargainRecord>().lambda()
                .eq(ComBatteryCommodityOrderBargainRecord::getBargainId,orderDto.getBargainId())
                .eq(ComBatteryCommodityOrderBargainRecord::getUserId,orderDto.getUserId()));
        if(count > 0){
            return R.fail("您已经参加此砍价，不可重复参加");
        }
        //商品原价
        BigDecimal originalPrice = orderBargain.getOriginalPrice();
        //商品目标价格
        BigDecimal targetPrice = orderBargain.getTargetPrice();
        //商品当前价格
        BigDecimal currentPrice = orderBargain.getCurrentPrice();
        //商品当前剩余砍价金额
        BigDecimal surplusPrice = currentPrice.subtract(targetPrice);

        //获取砍价随机金额
        BigDecimal maxPrice = originalPrice.subtract(targetPrice).multiply(BigDecimal.valueOf(0.1));
        BigDecimal minPrice = originalPrice.subtract(targetPrice).multiply(BigDecimal.valueOf(0.05));
        BigDecimal randomNumber = MathUtils.getRandomNumber(maxPrice,minPrice);
        if(randomNumber.compareTo(surplusPrice) > 0){
            randomNumber = surplusPrice;
        }
        //初始化用户帮砍价记录
        ComBatteryCommodityOrderBargainRecord orderBargainRecord = getOrderBargainRecord(orderBargain.getId()
                ,orderDto.getUserId(),randomNumber,commodityOrder.getUserId(),nowDate);
        orderBargainRecordMapper.insert(orderBargainRecord);

        //更新砍价记录
        orderBargain.setCurrentPrice(orderBargain.getCurrentPrice().subtract(randomNumber));
        orderBargain.setCount(orderBargain.getCount() + 1);
        this.baseMapper.updateById(orderBargain);

        //判断当前砍价订单是否已完成
        if(orderBargain.getCurrentPrice().compareTo(orderBargain.getTargetPrice()) == 0){
            //砍价完成,更新订单为已完成
            commodityOrder.setStatus(ComBatteryCommodityOrder.Status.DFH);
            commodityOrder.setBargainStatus(ComBatteryCommodityOrder.BargainStatus.KJCG);
            commodityOrder.setUpdateAt(nowDate);
            commodityOrder.setUpdateBy(orderDto.getUserId());
            commodityOrderMapper.updateById(commodityOrder);
        }
        return R.ok(randomNumber);
    }

    /**
     * 初始化用户帮砍价记录
     * @param bargainId 砍价记录id
     * @param userId    帮砍价用户id
     * @param amount    砍价金额
     * @param oldUserId 原发布砍价订单用户id
     * @param nowDate   操作时间
     * @return  用户帮砍价记录
     */
    private ComBatteryCommodityOrderBargainRecord getOrderBargainRecord(Long bargainId,Long userId
            ,BigDecimal amount,Long oldUserId,Date nowDate){
        ComBatteryCommodityOrderBargainRecord orderBargainRecord = new ComBatteryCommodityOrderBargainRecord();
        orderBargainRecord.setBargainId(bargainId);
        orderBargainRecord.setUserId(userId);
        orderBargainRecord.setAmount(amount);
        orderBargainRecord.setOldUserId(oldUserId);
        orderBargainRecord.setCreateAt(nowDate);
        orderBargainRecord.setCreateBy(userId);
        return orderBargainRecord;
    }

    /**
     * 查询砍价记录详情
     * @param id  砍价记录id
     * @return  创建订单结果
     */
    @Override
    public R getUserBargain(Long id) {
        //查询砍价记录
        ComBatteryCommodityOrderBargainVo orderBargainVo = this.baseMapper.queryById(id);
        if(orderBargainVo != null){
            //查询帮砍价记录
            List<ComBatteryCommodityOrderBargainRecordVo> orderBargainRecordList = orderBargainRecordMapper.queryAllByBargainId(id);
            orderBargainVo.setOrderBargainRecordList(orderBargainRecordList);
        }
        return R.ok(orderBargainVo);
    }
}