yhlxj/netflix-service/src/main/java/com/cyksj/service/user/impl/UserBenefitsServiceImpl.java

package com.cyksj.service.user.impl;

import com.cyksj.mapper.DistributeOrdersDeductPointsRecordMapper;
import com.cyksj.mapper.UserBalanceSourceRecordMapper;
import com.cyksj.mapper.UserMapper;
import com.cyksj.model.entity.DistributeOrdersDeductPointsRecord;
import com.cyksj.model.entity.User;
import com.cyksj.model.entity.UserBalanceSourceRecord;
import com.cyksj.service.user.UserBenefitsService;
import lombok.RequiredArgsConstructor;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;

/*
 *项目名: netflix
 *文件名: UserBenefitsServiceImpl
 *创建者: JavaZou
 *创建时间:2023/5/18 16:06
 */
@Service
@RequiredArgsConstructor
public class UserBenefitsServiceImpl implements UserBenefitsService {
	private final UserMapper userMapper;

	private final DistributeOrdersDeductPointsRecordMapper distributeOrdersDeductPointsRecordMapper;

	private final UserBalanceSourceRecordMapper userBalanceSourceRecordMapper;

	@Override
	public void deductDistributePoints(Long orderId, Long userId, BigDecimal deductPoints) {
		if (deductPoints.compareTo(BigDecimal.ZERO) <= 0) {
			return;
		}
		while (true) {
			User user = userMapper.selectById(userId);
			if (user == null) break;
			BigDecimal points = user.getPoints();
			Integer success = userMapper.subPointsNegative(userId, points, deductPoints);
			if (success == 1){
				//记录积分已发送后,退款后扣除积分记录
				deductPointsRecord(orderId, userId, deductPoints);
				break;
			}
		}
	}

	@Override
	public void addDistributePoints(Long userId, BigDecimal addPoints) {
		if (addPoints.compareTo(BigDecimal.ZERO) <= 0) {
			return;
		}
		while (true) {
			User user = userMapper.selectById(userId);
			if (user == null) break;
			BigDecimal points = user.getPoints();
			Integer success = userMapper.updatePoints(user.getId(), points, addPoints);
			if (success == 1) break;
		}
	}

	@Override
	public void addUserBalance(Long userId, BigDecimal addBalance, UserBalanceSourceRecord.Source source) {
		if (addBalance.compareTo(BigDecimal.ZERO) <= 0) {
			return;
		}
		while (true) {
			User user = userMapper.selectById(userId);
			if (user == null) break;
			BigDecimal balance = user.getBalance();
			Integer success = userMapper.addUserBalance(user.getId(), balance, addBalance);
			if (success == 1) {
				recordBalanceBySource(userId, addBalance, source);
				break;
			}
		}
	}

	@Override
	public void deductUserBalance(Long userId, BigDecimal subBalance) {
		if (subBalance.compareTo(BigDecimal.ZERO) <= 0) {
			return;
		}
		while (true) {
			User user = userMapper.selectById(userId);
			if (user == null) break;
			BigDecimal balance = user.getBalance();
			Integer success = userMapper.deductUserBalance(user.getId(), balance, subBalance);
			if (success == 1) break;
		}
	}

	public void deductPointsRecord(Long orderId, Long userId, BigDecimal deductPoints) {
		try {
			DistributeOrdersDeductPointsRecord record = new DistributeOrdersDeductPointsRecord();
			record.setOrderId(orderId);
			record.setUserId(userId);
			record.setDeductPoints(deductPoints);
			distributeOrdersDeductPointsRecordMapper.insert(record);
		} catch (DuplicateKeyException e) {

		}
	}

	@Override
	public void recordBalanceBySource(Long userId, BigDecimal balance, UserBalanceSourceRecord.Source source) {
		UserBalanceSourceRecord userBalanceSourceRecord = new UserBalanceSourceRecord();
		userBalanceSourceRecord.setUserId(userId);
		userBalanceSourceRecord.setBalance(balance);
		userBalanceSourceRecord.setSource(source);
		userBalanceSourceRecordMapper.insert(userBalanceSourceRecord);
	}
}