package com.ruoyi.approve.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.approve.bean.dto.ApprovalInstanceDto;
import com.ruoyi.approve.bean.dto.ApprovalTemplateNodeApproverDto;
import com.ruoyi.approve.bean.dto.ApprovalTemplateNodeDto;
import com.ruoyi.approve.bean.dto.FinReimbursementDto;
import com.ruoyi.approve.bean.vo.FinReimbursementVo;
import com.ruoyi.approve.mapper.ApprovalInstanceMapper;
import com.ruoyi.approve.mapper.FinReimbursementDetailMapper;
import com.ruoyi.approve.mapper.FinReimbursementMapper;
import com.ruoyi.approve.mapper.FinReimbursementTravelMapper;
import com.ruoyi.approve.pojo.*;
import com.ruoyi.basic.enums.ApplicationTypeEnum;
import com.ruoyi.basic.enums.RecordTypeEnum;
import com.ruoyi.basic.utils.FileUtil;
import com.ruoyi.approve.service.*;
import com.ruoyi.common.enums.TypeEnums;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.OrderUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.project.system.service.ISysNoticeService;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.*;
import java.util.stream.Collectors;

/**
 * <p>
 * 报销单主表 服务实现类
 * </p>
 *
 * @author 芯导软件（江苏）有限公司
 * @since 2026-05-21 09:56:15
 */
@Service
@RequiredArgsConstructor
public class FinReimbursementServiceImpl extends ServiceImpl<FinReimbursementMapper, FinReimbursement> implements FinReimbursementService {

    private static final String BILL_STATUS_DRAFT = "DRAFT";
    private static final String BILL_STATUS_IN_APPROVAL = "IN_APPROVAL";
    private static final String NODE_STATUS_WAITING = "WAITING";

    private final ApprovalInstanceMapper approvalInstanceMapper;
    private final ApprovalInstanceService approvalInstanceService;
    private final ApprovalInstanceNodeService approvalInstanceNodeService;
    private final ApprovalTaskService approvalTaskService;
    private final ApprovalRecordService approvalRecordService;
    private final FinReimbursementMapper finReimbursementMapper;
    private final FinReimbursementTravelMapper finReimbursementTravelMapper;
    private final FinReimbursementDetailMapper finReimbursementDetailMapper;
    private final FileUtil fileUtil;
    private final ISysNoticeService sysNoticeService;
    @Override
    public IPage<FinReimbursementVo> listPage(FinReimbursementDto finReimbursementDto, Page<FinReimbursementVo> page) {
        IPage<FinReimbursementVo> finReimbursementVoIPage = finReimbursementMapper.listPage(finReimbursementDto, page);
        finReimbursementVoIPage.getRecords().forEach(vo -> {
            vo.setStorageBlobVOList(fileUtil.getStorageBlobVOsByRecordTypeAndRecordId(RecordTypeEnum.FIN_REIMBURSEMENT,  vo.getId()));
        });

        return finReimbursementVoIPage;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean add(FinReimbursementDto finReimbursementDto) {
        String billStatus = validateAddParam(finReimbursementDto);

        // 生成报销单号
        String billNo = OrderUtils.countTodayByCreateTime(finReimbursementMapper, "BXD", "bill_no");
        List<FinReimbursementDetail> details = finReimbursementDto.getDetails();
        BigDecimal totalAmount = details.stream()
                .map(FinReimbursementDetail::getAmount)
                .filter(Objects::nonNull)
                .reduce(BigDecimal.ZERO, BigDecimal::add);

        FinReimbursement reimbursement = buildReimbursement(finReimbursementDto, billNo, totalAmount, billStatus);
        // 保存报销单主表
        boolean saved = this.save(reimbursement);
        if (!saved || reimbursement.getId() == null) {
            throw new ServiceException("新增报销单失败");
        }
        Long reimbursementId = reimbursement.getId();

        // 保存差旅报销扩展信息（报销类型为差旅报销时）
        FinReimbursementTravel travel = finReimbursementDto.getTravel();
        if (isTravelReimbursement(finReimbursementDto.getReimbursementType())) {
            travel.setReimbursementId(reimbursementId);
            int travelRows = finReimbursementTravelMapper.insert(travel);
            if (travelRows != 1) {
                throw new ServiceException("新增差旅报销扩展信息失败");
            }
        }

        // 保存报销单明细
        for (int i = 0; i < details.size(); i++) {
            FinReimbursementDetail detail = details.get(i);
            detail.setId(null);
            detail.setReimbursementId(reimbursementId);
            detail.setRowNo(i + 1);
            int detailRows = finReimbursementDetailMapper.insert(detail);
            if (detailRows != 1) {
                throw new ServiceException("新增报销单明细失败");
            }
        }

        if (BILL_STATUS_IN_APPROVAL.equals(billStatus)) {
            startApproval(reimbursement, finReimbursementDto);
        }
        fileUtil.saveStorageAttachment(ApplicationTypeEnum.FILE, RecordTypeEnum.FIN_REIMBURSEMENT, reimbursementId, finReimbursementDto.getStorageBlobDTOs());
        return true;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean update(FinReimbursementDto finReimbursementDto) {
        String billStatus = validateUpdateParam(finReimbursementDto);

        Long reimbursementId = finReimbursementDto.getId();
        FinReimbursement existing = finReimbursementMapper.selectById(reimbursementId);
        if (existing == null) {
            throw new ServiceException("报销单不存在");
        }

        // 计算明细汇总金额
        List<FinReimbursementDetail> details = finReimbursementDto.getDetails();
        BigDecimal totalAmount = details.stream()
                .map(FinReimbursementDetail::getAmount)
                .filter(Objects::nonNull)
                .reduce(BigDecimal.ZERO, BigDecimal::add);

        // 更新主表
        FinReimbursement reimbursement = buildReimbursement(
                finReimbursementDto,
                existing.getBillNo(),
                totalAmount,
                billStatus
        );
        reimbursement.setId(reimbursementId);
        int mainRows = finReimbursementMapper.updateById(reimbursement);
        if (mainRows != 1) {
            throw new ServiceException("更新报销单主表失败");
        }

        // 查询数据库中已有的明细
        List<FinReimbursementDetail> existingDetails = finReimbursementDetailMapper.selectList(
                new LambdaQueryWrapper<FinReimbursementDetail>()
                        .eq(FinReimbursementDetail::getReimbursementId, reimbursementId));
        Set<Long> existingDetailIds = existingDetails.stream()
                .map(FinReimbursementDetail::getId)
                .filter(Objects::nonNull)
                .collect(Collectors.toSet());

        // 新明细中有ID的 → 更新；无ID的 → 新增
        Set<Long> submittedDetailIds = new HashSet<>();
        for (int i = 0; i < details.size(); i++) {
            FinReimbursementDetail detail = details.get(i);
            detail.setReimbursementId(reimbursementId);
            detail.setRowNo(i + 1);
            if (detail.getId() != null && existingDetailIds.contains(detail.getId())) {
                finReimbursementDetailMapper.updateById(detail);
                submittedDetailIds.add(detail.getId());
            } else {
                detail.setId(null);
                finReimbursementDetailMapper.insert(detail);
            }
        }

        // 数据库中已有但新明细中没有的 → 删除
        for (Long existingId : existingDetailIds) {
            if (!submittedDetailIds.contains(existingId)) {
                finReimbursementDetailMapper.deleteById(existingId);
            }
        }

        // 差旅扩展：有则更新，无则新增
        FinReimbursementTravel existingTravel = finReimbursementTravelMapper.selectOne(
                new LambdaQueryWrapper<FinReimbursementTravel>()
                        .eq(FinReimbursementTravel::getReimbursementId, reimbursementId)
                        .last("LIMIT 1"));
        FinReimbursementTravel travel = finReimbursementDto.getTravel();
        if (isTravelReimbursement(finReimbursementDto.getReimbursementType()) && travel != null) {
            travel.setReimbursementId(reimbursementId);
            if (existingTravel != null) {
                travel.setId(existingTravel.getId());
                finReimbursementTravelMapper.updateById(travel);
            } else {
                travel.setId(null);
                finReimbursementTravelMapper.insert(travel);
            }
        }

        resetApprovalFlow(existing.getApprovalInstanceId(), reimbursementId);
        if (BILL_STATUS_IN_APPROVAL.equals(billStatus)) {
            reimbursement.setApprovalInstanceId(null);
            startApproval(reimbursement, finReimbursementDto);
        }
        fileUtil.saveStorageAttachment(ApplicationTypeEnum.FILE, RecordTypeEnum.FIN_REIMBURSEMENT, reimbursementId, finReimbursementDto.getStorageBlobDTOs());

        return true;
    }

    @Override
    public FinReimbursementVo detail(Long id) {
        if (id == null ) {
            throw new ServiceException("报销单ID不能为空");
        }

        FinReimbursement reimbursement = finReimbursementMapper.selectById(id);
        if (reimbursement == null) {
            throw new ServiceException("报销单不存在");
        }

        FinReimbursementVo vo = new FinReimbursementVo();
        vo.setId(reimbursement.getId());
        vo.setBillNo(reimbursement.getBillNo());
        vo.setReimbursementType(reimbursement.getReimbursementType());
        vo.setExpenseType(reimbursement.getExpenseType());
        vo.setApplicantId(reimbursement.getApplicantId());
        vo.setApplicantCode(reimbursement.getApplicantCode());
        vo.setApplicantName(reimbursement.getApplicantName());
        vo.setApplicantDeptId(reimbursement.getApplicantDeptId());
        vo.setApplicantDeptName(reimbursement.getApplicantDeptName());
        vo.setReason(reimbursement.getReason());
        vo.setApplyAmount(reimbursement.getApplyAmount());
        vo.setDetailTotalAmount(reimbursement.getDetailTotalAmount());
        vo.setPayeeName(reimbursement.getPayeeName());
        vo.setPayeeAccount(reimbursement.getPayeeAccount());
        vo.setPayeeBank(reimbursement.getPayeeBank());
        vo.setApprovalInstanceId(reimbursement.getApprovalInstanceId());
        vo.setApproveProcessId(reimbursement.getApproveProcessId());
        vo.setBillStatus(reimbursement.getBillStatus());
        vo.setApprovedTime(reimbursement.getApprovedTime());
        vo.setPaidTime(reimbursement.getPaidTime());
        vo.setAccountExpenseId(reimbursement.getAccountExpenseId());
        vo.setRemark(reimbursement.getRemark());
        vo.setTenantId(reimbursement.getTenantId());
        vo.setCreateUser(reimbursement.getCreateUser());
        vo.setCreateTime(reimbursement.getCreateTime());
        vo.setUpdateUser(reimbursement.getUpdateUser());
        vo.setUpdateTime(reimbursement.getUpdateTime());
        vo.setDeptId(reimbursement.getDeptId());
        vo.setDeleted(reimbursement.getDeleted());

        vo.setDetails(finReimbursementDetailMapper.selectList(
                new LambdaQueryWrapper<FinReimbursementDetail>()
                        .eq(FinReimbursementDetail::getReimbursementId, reimbursement.getId())
                        .orderByAsc(FinReimbursementDetail::getRowNo)
        ));

        if (isTravelReimbursement(reimbursement.getReimbursementType())) {
            vo.setTravel(finReimbursementTravelMapper.selectOne(
                    new LambdaQueryWrapper<FinReimbursementTravel>()
                            .eq(FinReimbursementTravel::getReimbursementId, reimbursement.getId())
                            .last("LIMIT 1")
            ));
        }
        vo.setStorageBlobVOList(fileUtil.getStorageBlobVOsByRecordTypeAndRecordId(RecordTypeEnum.FIN_REIMBURSEMENT, reimbursement.getId()));
        //审批记录返回
        vo.setTasks(approvalTaskService.list(new LambdaQueryWrapper<ApprovalTask>().eq(ApprovalTask::getInstanceId, reimbursement.getApprovalInstanceId())));
        vo.setRecords(approvalRecordService.list(new LambdaQueryWrapper<ApprovalRecord>().eq(ApprovalRecord::getInstanceId, reimbursement.getApprovalInstanceId())));
        return vo;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean delete(List<Long> ids) {
        fileUtil.deleteStorageAttachmentsByApplicationAndRecordTypeAndRecordIds(ApplicationTypeEnum.FILE, RecordTypeEnum.FIN_REIMBURSEMENT, ids);
        //先删除明细
        finReimbursementDetailMapper.delete(new LambdaQueryWrapper<FinReimbursementDetail>().in(FinReimbursementDetail::getReimbursementId, ids));
        //删除差旅
        finReimbursementTravelMapper.delete(new LambdaQueryWrapper<FinReimbursementTravel>().in(FinReimbursementTravel::getReimbursementId, ids));
        //删除主表
        int rows = finReimbursementMapper.delete(new LambdaQueryWrapper<FinReimbursement>().in(FinReimbursement::getId, ids));
        return rows == ids.size();
    }

    private String validateUpdateParam(FinReimbursementDto finReimbursementDto) {
        if (finReimbursementDto == null || finReimbursementDto.getId() == null) {
            throw new ServiceException("报销单ID不能为空");
        }
        if (finReimbursementDto.getReimbursementType() == null) {
            throw new ServiceException("报销类型不能为空");
        }
        String billStatus = normalizeBillStatus(finReimbursementDto.getBillStatus());
        if (billStatus == null) {
            throw new ServiceException("单据状态只支持 DRAFT 或 IN_APPROVAL");
        }
        if (BILL_STATUS_IN_APPROVAL.equals(billStatus)) {
            validateApprovalNodes(finReimbursementDto.getNodes());
        }
        List<FinReimbursementDetail> details = finReimbursementDto.getDetails();
        if (details == null || details.isEmpty()) {
            throw new ServiceException("报销单明细不能为空");
        }
        for (FinReimbursementDetail detail : details) {
            if (detail == null) {
                throw new ServiceException("报销单明细不能为空");
            }
            if (detail.getAmount() == null || detail.getAmount().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException("报销单明细金额必须大于0");
            }
        }
        if (isTravelReimbursement(finReimbursementDto.getReimbursementType()) && finReimbursementDto.getTravel() == null) {
            throw new ServiceException("差旅报销必须填写差旅扩展信息");
        }
        if (!isTravelReimbursement(finReimbursementDto.getReimbursementType()) && finReimbursementDto.getTravel() != null) {
            throw new ServiceException("非差旅报销不允许填写差旅扩展信息");
        }
        return billStatus;
    }

    private String validateAddParam(FinReimbursementDto finReimbursementDto) {
        if (finReimbursementDto == null) {
            throw new ServiceException("报销单数据不能为空");
        }
        if (finReimbursementDto.getReimbursementType() == null) {
            throw new ServiceException("报销类型不能为空");
        }
        String billStatus = normalizeBillStatus(finReimbursementDto.getBillStatus());
        if (billStatus == null) {
            throw new ServiceException("单据状态只支持 DRAFT 或 IN_APPROVAL");
        }
        if (BILL_STATUS_IN_APPROVAL.equals(billStatus)) {
            validateApprovalNodes(finReimbursementDto.getNodes());
        }
        List<FinReimbursementDetail> details = finReimbursementDto.getDetails();
        if (details == null || details.isEmpty()) {
            throw new ServiceException("报销单明细不能为空");
        }
        for (FinReimbursementDetail detail : details) {
            if (detail == null) {
                throw new ServiceException("报销单明细不能为空");
            }
            if (detail.getAmount() == null || detail.getAmount().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException("报销单明细金额必须大于0");
            }
        }
        if (isTravelReimbursement(finReimbursementDto.getReimbursementType()) && finReimbursementDto.getTravel() == null) {
            throw new ServiceException("差旅报销必须填写差旅扩展信息");
        }
        if (!isTravelReimbursement(finReimbursementDto.getReimbursementType()) && finReimbursementDto.getTravel() != null) {
            throw new ServiceException("非差旅报销不允许填写差旅扩展信息");
        }
        return billStatus;
    }

    private FinReimbursement buildReimbursement(FinReimbursementDto finReimbursementDto, String billNo, BigDecimal totalAmount, String billStatus) {
        FinReimbursement reimbursement = new FinReimbursement();
        reimbursement.setId(null);
        reimbursement.setBillNo(billNo);
        reimbursement.setReimbursementType(finReimbursementDto.getReimbursementType());
        reimbursement.setExpenseType(finReimbursementDto.getExpenseType());
        reimbursement.setApplicantId(finReimbursementDto.getApplicantId());
        reimbursement.setApplicantCode(finReimbursementDto.getApplicantCode());
        reimbursement.setApplicantName(finReimbursementDto.getApplicantName());
        reimbursement.setApplicantDeptId(finReimbursementDto.getApplicantDeptId());
        reimbursement.setApplicantDeptName(finReimbursementDto.getApplicantDeptName());
        reimbursement.setReason(finReimbursementDto.getReason());
        reimbursement.setApplyAmount(finReimbursementDto.getApplyAmount());
        reimbursement.setDetailTotalAmount(totalAmount);
        reimbursement.setPayeeName(finReimbursementDto.getPayeeName());
        reimbursement.setPayeeAccount(finReimbursementDto.getPayeeAccount());
        reimbursement.setPayeeBank(finReimbursementDto.getPayeeBank());
        reimbursement.setRemark(finReimbursementDto.getRemark());
        reimbursement.setTenantId(finReimbursementDto.getTenantId());
        reimbursement.setApproveProcessId(null);
        reimbursement.setBillStatus(billStatus);
        return reimbursement;
    }

    private void startApproval(FinReimbursement reimbursement, FinReimbursementDto finReimbursementDto) {
        Long businessType = resolveBusinessType(finReimbursementDto.getReimbursementType());
        ApprovalInstanceDto approvalInstanceDto = new ApprovalInstanceDto();
        approvalInstanceDto.setInstanceNo(OrderUtils.countTodayByCreateTime(approvalInstanceMapper, "SP", "instance_no"));
        approvalInstanceDto.setBusinessId(reimbursement.getId());
        approvalInstanceDto.setTemplateId(null);
        approvalInstanceDto.setTemplateName(TypeEnums.getLabelByValue(businessType) + "审批");
        approvalInstanceDto.setBusinessType(businessType);
        approvalInstanceDto.setTitle("报销单号：" + reimbursement.getBillNo());
        approvalInstanceDto.setApplicantId(reimbursement.getApplicantId() != null ? reimbursement.getApplicantId() : SecurityUtils.getUserId());
        approvalInstanceDto.setApplicantName(reimbursement.getApplicantName() != null ? reimbursement.getApplicantName() : SecurityUtils.getLoginUser().getNickName());
        approvalInstanceDto.setApplyTime(LocalDateTime.now());
        approvalInstanceDto.setStatus("PENDING");
        approvalInstanceDto.setCurrentLevel(1);

        boolean approvalSaved = approvalInstanceService.save(approvalInstanceDto);
        if (!approvalSaved || approvalInstanceDto.getId() == null) {
            throw new ServiceException("发起审批失败");
        }
        List<ApprovalTask> firstTasks = createApprovalNodes(approvalInstanceDto, finReimbursementDto.getNodes());
        sendApproveNotice(approvalInstanceDto, firstTasks);

        FinReimbursement update = new FinReimbursement();
        update.setId(reimbursement.getId());
        update.setApprovalInstanceId(approvalInstanceDto.getId());
        update.setBillStatus(BILL_STATUS_IN_APPROVAL);
        int rows = finReimbursementMapper.updateById(update);
        if (rows != 1) {
            throw new ServiceException("回填审批实例失败");
        }
    }

    private List<ApprovalTask> createApprovalNodes(ApprovalInstanceDto approvalInstanceDto, List<ApprovalTemplateNodeDto> nodes) {
        List<ApprovalTask> firstTasks = Collections.emptyList();
        for (int i = 0; i < nodes.size(); i++) {
            ApprovalTemplateNodeDto nodeDto = nodes.get(i);
            ApprovalInstanceNode instanceNode = new ApprovalInstanceNode();
            instanceNode.setInstanceId(approvalInstanceDto.getId());
            instanceNode.setLevelNo(nodeDto.getLevelNo());
            instanceNode.setApproveType(nodeDto.getApproveType());
            instanceNode.setStatus(i == 0 ? "PENDING" : NODE_STATUS_WAITING);
            instanceNode.setStartTime(i == 0 ? LocalDateTime.now() : null);
            instanceNode.setDeleted((byte) 0);
            approvalInstanceNodeService.save(instanceNode);

            List<ApprovalTask> tasks = nodeDto.getApprovers().stream().map(approver -> {
                ApprovalTask task = new ApprovalTask();
                task.setInstanceId(approvalInstanceDto.getId());
                task.setNodeId(instanceNode.getId());
                task.setLevelNo(instanceNode.getLevelNo());
                task.setApproverId(approver.getApproverId());
                task.setApproverName(approver.getApproverName());
                task.setTaskStatus("PENDING");
                task.setIsRead((byte) 0);
                task.setDeleted((byte) 0);
                return task;
            }).collect(Collectors.toList());
            approvalTaskService.saveBatch(tasks);

            if (i == 0) {
                firstTasks = tasks;
                ApprovalRecord record = new ApprovalRecord();
                record.setInstanceId(approvalInstanceDto.getId());
                record.setNodeId(instanceNode.getId());
                record.setOperatorId(approvalInstanceDto.getApplicantId());
                record.setOperatorName(approvalInstanceDto.getApplicantName());
                record.setAction("SUBMIT");
                record.setComment("发起审批");
                record.setDeleted((byte) 0);
                approvalRecordService.save(record);
            }
        }
        return firstTasks;
    }

    private void validateApprovalNodes(List<ApprovalTemplateNodeDto> nodes) {
        if (nodes == null || nodes.isEmpty()) {
            throw new ServiceException("提交审批时审批节点不能为空");
        }
        for (int i = 0; i < nodes.size(); i++) {
            ApprovalTemplateNodeDto node = nodes.get(i);
            if (node == null) {
                throw new ServiceException("审批节点不能为空");
            }
            if (node.getLevelNo() == null) {
                node.setLevelNo(i + 1);
            }
            if (!StringUtils.hasText(node.getApproveType())) {
                throw new ServiceException("审批节点审批方式不能为空");
            }
            List<ApprovalTemplateNodeApproverDto> approvers = node.getApprovers();
            if (approvers == null || approvers.isEmpty()) {
                throw new ServiceException("审批节点审批人不能为空");
            }
            for (ApprovalTemplateNodeApproverDto approver : approvers) {
                if (approver == null || approver.getApproverId() == null) {
                    throw new ServiceException("审批人不能为空");
                }
            }
        }
    }

    private void sendApproveNotice(ApprovalInstanceDto instance, List<ApprovalTask> tasks) {
        if (instance == null || tasks == null || tasks.isEmpty()) {
            return;
        }
        List<Long> approverIds = tasks.stream()
                .map(ApprovalTask::getApproverId)
                .filter(id -> id != null && id > 0)
                .distinct()
                .collect(Collectors.toList());
        if (approverIds.isEmpty()) {
            return;
        }
        String title = "报销审批";
        String message = "审批单号 " + instance.getInstanceNo() + " 需要您审批";
        String jumpPath = "/approvalInstance?id=" + instance.getId();
        sysNoticeService.simpleNoticeByUser(title, message, approverIds, jumpPath);
    }

    private void resetApprovalFlow(Long approvalInstanceId, Long reimbursementId) {
        if (approvalInstanceId == null) {
            return;
        }
        approvalInstanceService.delete(Collections.singletonList(approvalInstanceId));
        int rows = finReimbursementMapper.update(
                null,
                Wrappers.<FinReimbursement>lambdaUpdate()
                        .eq(FinReimbursement::getId, reimbursementId)
                        .set(FinReimbursement::getApprovalInstanceId, null)
        );
        if (rows != 1) {
            throw new ServiceException("重置审批流程失败");
        }
    }

    private Long resolveBusinessType(Byte reimbursementType) {
        return isTravelReimbursement(reimbursementType)
                ? TypeEnums.TRAVEL_REIMBURSEMENT_APPROVAL.getCode()
                : TypeEnums.EXPENSE_APPROVAL.getCode();
    }

    private String normalizeBillStatus(String billStatus) {
        if (billStatus == null) {
            return BILL_STATUS_DRAFT;
        }
        String normalized = billStatus.trim().toUpperCase();
        if (BILL_STATUS_DRAFT.equals(normalized) || BILL_STATUS_IN_APPROVAL.equals(normalized)) {
            return normalized;
        }
        return null;
    }

    private boolean isTravelReimbursement(Byte reimbursementType) {
        return Byte.valueOf((byte) 1).equals(reimbursementType);
    }
}