ContractPaymentServiceImpl.java
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package vion.service.impl;
import cn.hutool.core.util.NumberUtil;
import com.github.yulichang.base.MPJBaseServiceImpl;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import vion.mapper.ContractPaymentMapper;
import vion.model.Contract;
import vion.model.ContractPayment;
import vion.service.IContractPaymentService;
import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* @author HlQ
* @date 2023/11/29
*/
@Service
@RequiredArgsConstructor
public class ContractPaymentServiceImpl extends MPJBaseServiceImpl<ContractPaymentMapper, ContractPayment> implements IContractPaymentService {
@Override
public void calMoney(Contract exitContract, Contract dto) {
List<ContractPayment> contractPaymentList = this.lambdaQuery().eq(ContractPayment::getContractId, dto.getId()).list();
Map<Integer, BigDecimal> type2RatioMap = contractPaymentList.stream().collect(Collectors.toMap(ContractPayment::getPaymentType, ContractPayment::getPaymentRatio));
Integer status = dto.getStatus() == null ? exitContract.getStatus() : dto.getStatus();
BigDecimal sumRatio = new BigDecimal(0);
for (int i = 1; i <= status; i++) {
BigDecimal ratio = type2RatioMap.get(i);
NumberUtil.add(ratio, sumRatio);
}
BigDecimal totalAmount = exitContract.getTotalAmount();
BigDecimal curAmount = NumberUtil.mul(totalAmount, sumRatio);
BigDecimal recAmount = NumberUtil.sub(curAmount, dto.getPaidAmount() != null ? dto.getPaidAmount() : exitContract.getPaidAmount());
BigDecimal outsideAmount = NumberUtil.sub(totalAmount, recAmount);
dto.setReceivableAmount(recAmount);
dto.setOutstandingAmount(outsideAmount);
}
}