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2025-04-21 a217652d33c75df23202828000d82d0ca8555ac2

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package com.taoke.autopay.service.impl.credit;
 
 
import com.taoke.autopay.dao.credit.UserCreditBalanceMapper;
import com.taoke.autopay.entity.credit.UserCreditBalance;
import com.taoke.autopay.service.credit.UserCreditBalanceService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
 
import javax.annotation.Resource;
import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
@Service
public class UserCreditBalanceServiceImpl implements UserCreditBalanceService {
 
    @Resource
    private UserCreditBalanceMapper userCreditBalanceMapper;
 
    @Override
    public void initializeCreditBalance(Long userId) {
        if(getCreditBalanceByUserId(userId)!=null){
            return;
        }
        UserCreditBalance userCreditBalance = new UserCreditBalance();
        userCreditBalance.setId(userId);
        userCreditBalance.setCreditBalance(0);
        userCreditBalance.setCreateTime(new Date());
        userCreditBalance.setUpdateTime(new Date());
        userCreditBalanceMapper.insert(userCreditBalance);
    }
 
    @Override
    public UserCreditBalance getCreditBalanceByUserId(Long userId) {
        return userCreditBalanceMapper.selectByPrimaryKey(userId);
    }
 
    @Override
    public Map<Long, UserCreditBalance> getCreditBalancesByUserIds(List<Long> userIds) {
        List<UserCreditBalance> userCreditBalances = userCreditBalanceMapper.listByIds(userIds);
        Map<Long, UserCreditBalance> balanceMap = new HashMap<>();
        for (UserCreditBalance balance : userCreditBalances) {
            balanceMap.put(balance.getId(), balance);
        }
        return balanceMap;
    }
 
    @Transactional(rollbackFor = Exception.class)
    @Override
    public void increaseCreditBalance(Long userId, int amount) {
        UserCreditBalance userCreditBalance = userCreditBalanceMapper.selectByPrimaryKeyForUpdate(userId);
        if (userCreditBalance != null) {
            userCreditBalanceMapper.updateByPrimaryKeySelective(UserCreditBalance.builder()
                            .id(userCreditBalance.getId())
                            .creditBalance(userCreditBalance.getCreditBalance() + amount)
                            .updateTime(new Date())
                    .build());
        }
    }
    @Transactional(rollbackFor = Exception.class)
    @Override
    public void decreaseCreditBalance(Long userId, int amount) {
        UserCreditBalance userCreditBalance = userCreditBalanceMapper.selectByPrimaryKeyForUpdate(userId);
        if (userCreditBalance != null) {
            userCreditBalanceMapper.updateByPrimaryKeySelective(UserCreditBalance.builder()
                    .id(userCreditBalance.getId())
                    .creditBalance(userCreditBalance.getCreditBalance() - amount)
                    .updateTime(new Date())
                    .build());
        }
    }
}