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package cn.iocoder.yudao.module.srm.service.inquiry;
 
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.enums.CommonStatusEnum;
import cn.iocoder.yudao.framework.common.exception.ServiceException;
import cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.bpm.api.task.BpmProcessInstanceApi;
import cn.iocoder.yudao.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO;
import cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum;
import cn.iocoder.yudao.module.erp.api.purchase.ErpPurchaseOrderApi;
import cn.iocoder.yudao.module.erp.api.purchase.ErpPurchaseRequestApi;
import cn.iocoder.yudao.module.erp.api.purchase.dto.ErpPurchaseOrderCreateReqDTO;
import cn.iocoder.yudao.module.erp.api.purchase.dto.ErpPurchaseOrderRespDTO;
import cn.iocoder.yudao.module.erp.api.purchase.dto.ErpPurchaseRequestRespDTO;
import cn.iocoder.yudao.module.mdm.api.item.MdmItemApi;
import cn.iocoder.yudao.module.mdm.api.item.dto.MdmItemRespDTO;
import cn.iocoder.yudao.module.mdm.api.unit.MdmUnitMeasureApi;
import cn.iocoder.yudao.module.mdm.api.unit.dto.MdmUnitMeasureRespDTO;
import cn.iocoder.yudao.module.srm.controller.admin.inquiry.vo.*;
import cn.iocoder.yudao.module.srm.dal.dataobject.*;
import cn.iocoder.yudao.module.srm.dal.mysql.*;
import cn.iocoder.yudao.module.srm.enums.ErrorCodeConstants;
import cn.iocoder.yudao.module.srm.enums.InquiryStatusEnum;
import cn.iocoder.yudao.module.srm.service.supplier.SrmSupplierService;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;
 
import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.*;
import java.util.function.Function;
import java.util.stream.Collectors;
 
import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
 
/**
 * SRM 询价比价 Service 实现
 */
@Service
@Validated
@Slf4j
public class SrmInquiryServiceImpl implements SrmInquiryService {
 
    private static final DateTimeFormatter NO_DATE_FORMAT = DateTimeFormatter.ofPattern("yyyyMM");
 
    /**
     * 采购申请「审核通过」状态值,与 ERP 模块 ErpPurchaseRequestStatusEnum.APPROVE 保持一致
     */
    private static final Integer PURCHASE_REQUEST_STATUS_APPROVED = 20;
 
    @Resource
    private SrmInquiryMapper inquiryMapper;
    @Resource
    private BpmProcessInstanceApi processInstanceApi;
    @Resource
    private SrmInquiryItemMapper inquiryItemMapper;
    @Resource
    private SrmInquirySupplierMapper inquirySupplierMapper;
    @Resource
    private SrmInquiryQuoteMapper inquiryQuoteMapper;
    @Resource
    private SrmInquiryOrderMapper inquiryOrderMapper;
    @Resource
    private SrmSupplierService supplierService;
    @Resource
    private MdmItemApi mdmItemApi;
    @Resource
    private MdmUnitMeasureApi mdmUnitMeasureApi;
    @Resource
    private ErpPurchaseOrderApi erpPurchaseOrderApi;
    @Resource
    private ErpPurchaseRequestApi erpPurchaseRequestApi;
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long createInquiry(SrmInquirySaveReqVO createReqVO) {
        validateInquiryInput(createReqVO);
        SrmInquiryDO inquiry = new SrmInquiryDO();
        inquiry.setNo(generateInquiryNo());
        inquiry.setTitle(createReqVO.getTitle());
        inquiry.setStatus(InquiryStatusEnum.DRAFT.getStatus());
        inquiry.setInquiryDate(createReqVO.getInquiryDate() != null ? createReqVO.getInquiryDate() : LocalDate.now());
        inquiry.setDeadline(createReqVO.getDeadline());
        inquiry.setPurchaserUserId(createReqVO.getPurchaserUserId() != null
                ? createReqVO.getPurchaserUserId() : getLoginUserId());
        inquiry.setRemark(createReqVO.getRemark());
        inquiryMapper.insert(inquiry);
        List<SrmInquiryItemDO> items = saveItems(inquiry.getId(), createReqVO.getItems());
        saveSuppliers(inquiry.getId(), createReqVO.getSuppliers());
        saveItemQuotes(inquiry.getId(), items, createReqVO.getItems(),
                createReqVO.getSuppliers().stream()
                        .map(SrmInquirySaveReqVO.Supplier::getSupplierId)
                        .collect(Collectors.toSet()));
        return inquiry.getId();
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long createInquiryFromPurchaseRequest(Long purchaseRequestId) {
        ErpPurchaseRequestRespDTO purchaseRequest = erpPurchaseRequestApi
                .getPurchaseRequest(purchaseRequestId).getCheckedData();
        if (purchaseRequest == null) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_NOT_EXISTS);
        }
        if (!PURCHASE_REQUEST_STATUS_APPROVED.equals(purchaseRequest.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_NOT_APPROVED.getCode(),
                    "采购申请【" + purchaseRequest.getNo() + "】当前状态不是「审核通过」,无法发起询价。"
                            + "请先在采购申请中完成审批,审批通过后再发起询价。");
        }
        if (purchaseRequest.getOrderId() != null) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_HAS_ORDER.getCode(),
                    "采购申请【" + purchaseRequest.getNo() + "】已生成采购台账【"
                            + StrUtil.blankToDefault(purchaseRequest.getOrderNo(), "ID=" + purchaseRequest.getOrderId())
                            + "】,无法再发起询价。请到采购台账中查看价格明细。");
        }
        SrmInquiryDO linkedInquiry = purchaseRequest.getInquiryId() != null
                ? inquiryMapper.selectById(purchaseRequest.getInquiryId()) : null;
        if (linkedInquiry != null
                && !InquiryStatusEnum.CANCELLED.getStatus().equals(linkedInquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_HAS_INQUIRY.getCode(),
                    "采购申请【" + purchaseRequest.getNo() + "】已发起过询价【"
                            + StrUtil.blankToDefault(purchaseRequest.getInquiryNo(), "ID=" + purchaseRequest.getInquiryId())
                            + "】,请直接打开该询价单继续处理,不要重复发起。");
        }
        List<ErpPurchaseRequestRespDTO.Item> requestItems = purchaseRequest.getItems();
        if (CollUtil.isEmpty(requestItems)) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_ITEM_EMPTY.getCode(),
                    "采购申请【" + purchaseRequest.getNo() + "】没有明细行,无法发起询价。请回到采购申请补充明细后再试。");
        }
 
        SrmInquiryDO inquiry = new SrmInquiryDO();
        inquiry.setNo(generateInquiryNo());
        inquiry.setTitle("采购申请【" + purchaseRequest.getNo() + "】询价");
        inquiry.setStatus(InquiryStatusEnum.DRAFT.getStatus());
        inquiry.setInquiryDate(LocalDate.now());
        inquiry.setPurchaserUserId(getLoginUserId());
        inquiry.setRemark("由采购申请【" + purchaseRequest.getNo() + "】发起");
        inquiry.setPurchaseRequestId(purchaseRequest.getId());
        inquiry.setPurchaseRequestNo(purchaseRequest.getNo());
        inquiryMapper.insert(inquiry);
 
        List<SrmInquirySaveReqVO.Item> itemVOs = new ArrayList<>();
        Set<Long> productIds = new HashSet<>();
        for (ErpPurchaseRequestRespDTO.Item requestItem : requestItems) {
            if (!productIds.add(requestItem.getProductId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_PURCHASE_REQUEST_ITEM_EMPTY.getCode(),
                        "采购申请【" + purchaseRequest.getNo() + "】中产品【"
                                + resolveItemName(requestItem.getProductId()) + "】存在多行明细,无法直接发起询价。"
                                + "请先在采购申请中合并同一产品的数量后再试。");
            }
            SrmInquirySaveReqVO.Item itemVO = new SrmInquirySaveReqVO.Item();
            itemVO.setProductId(requestItem.getProductId());
            itemVO.setProductUnitId(requestItem.getProductUnitId());
            itemVO.setQuantity(requestItem.getCount());
            itemVO.setRemark(requestItem.getRemark());
            itemVOs.add(itemVO);
        }
        saveItems(inquiry.getId(), itemVOs);
 
        erpPurchaseRequestApi.updatePurchaseRequestInquiry(purchaseRequest.getId(), inquiry.getId(), inquiry.getNo());
        return inquiry.getId();
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateInquiry(SrmInquirySaveReqVO updateReqVO) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(updateReqVO.getId());
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.REJECTED.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_EDITABLE.getCode(),
                    "询价单【" + inquiry.getNo() + "】当前状态为【" + statusName(inquiry.getStatus())
                            + "】,仅草稿状态可编辑。如需调整产品行或供应商,请取消后重新创建询价单。");
        }
        validateInquiryInput(updateReqVO);
 
        SrmInquiryDO updateObj = new SrmInquiryDO();
        updateObj.setId(inquiry.getId());
        updateObj.setTitle(updateReqVO.getTitle());
        updateObj.setInquiryDate(updateReqVO.getInquiryDate());
        updateObj.setDeadline(updateReqVO.getDeadline());
        updateObj.setPurchaserUserId(updateReqVO.getPurchaserUserId());
        updateObj.setRemark(updateReqVO.getRemark());
        inquiryMapper.updateById(updateObj);
 
        // 草稿阶段允许整体替换产品行、供应商与报价
        inquiryQuoteMapper.deleteByInquiryId(inquiry.getId());
        inquiryItemMapper.deleteByInquiryId(inquiry.getId());
        inquirySupplierMapper.deleteByInquiryId(inquiry.getId());
        List<SrmInquiryItemDO> items = saveItems(inquiry.getId(), updateReqVO.getItems());
        saveSuppliers(inquiry.getId(), updateReqVO.getSuppliers());
        saveItemQuotes(inquiry.getId(), items, updateReqVO.getItems(),
                updateReqVO.getSuppliers().stream()
                        .map(SrmInquirySaveReqVO.Supplier::getSupplierId)
                        .collect(Collectors.toSet()));
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteInquiry(Long id) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(id);
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_EDITABLE.getCode(),
                    "询价单【" + inquiry.getNo() + "】当前状态为【" + statusName(inquiry.getStatus())
                            + "】,仅草稿状态可删除。已发布或已转订单的询价单请改为取消。");
        }
        inquiryItemMapper.deleteByInquiryId(id);
        inquirySupplierMapper.deleteByInquiryId(id);
        inquiryQuoteMapper.deleteByInquiryId(id);
        inquiryMapper.deleteById(id);
        clearPurchaseRequestLink(inquiry);
    }
 
    @Override
    public SrmInquiryDO getInquiry(Long id) {
        return inquiryMapper.selectById(id);
    }
 
    @Override
    public SrmInquiryRespVO getInquiryDetail(Long id) {
        SrmInquiryDO inquiry = validateInquiryExists(id);
        return buildInquiryResp(inquiry);
    }
 
    @Override
    public PageResult<SrmInquiryDO> getInquiryPage(SrmInquiryPageReqVO pageReqVO) {
        return inquiryMapper.selectPage(pageReqVO);
    }
 
    @Override
    public List<SrmInquiryDO> getInquirySimpleList() {
        return inquiryMapper.selectList(null).stream()
                .filter(item -> !InquiryStatusEnum.CANCELLED.getStatus().equals(item.getStatus()))
                .sorted(Comparator.comparing(SrmInquiryDO::getId).reversed())
                .collect(Collectors.toList());
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void submitApproval(Long id, Long userId) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(id);
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.QUOTING.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.REJECTED.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_CONFIRMABLE.getCode(), "当前状态不可提交审核");
        }
        List<SrmInquiryItemDO> items = inquiryItemMapper.selectListByInquiryId(id);
        if (CollUtil.isEmpty(items)) throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_ITEM_EMPTY);
        Map<Long, SrmInquiryQuoteDO> quotes = inquiryQuoteMapper.selectListByInquiryId(id).stream()
                .collect(Collectors.toMap(SrmInquiryQuoteDO::getId, Function.identity()));
        Set<Long> suppliers = inquirySupplierMapper.selectListByInquiryId(id).stream()
                .map(SrmInquirySupplierDO::getSupplierId).collect(Collectors.toSet());
        for (SrmInquiryItemDO item : items) {
            SrmInquiryQuoteDO quote = quotes.get(item.getSelectedQuoteId());
            if (quote == null || !item.getId().equals(quote.getInquiryItemId())
                    || !suppliers.contains(quote.getSupplierId()) || quote.getPrice() == null
                    || quote.getPrice().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_REQUIRED.getCode(), "请先为每个产品选择有效的中标报价");
            }
            inquiryItemMapper.updateById(new SrmInquiryItemDO().setId(item.getId())
                    .setSelectedSupplierId(quote.getSupplierId()).setSelectedPrice(quote.getPrice()));
        }
        inquiryMapper.updateById(new SrmInquiryDO().setId(id).setStatus(InquiryStatusEnum.APPROVING.getStatus()).setProcessInstanceId(""));
        String processId = processInstanceApi.createProcessInstance(userId, new BpmProcessInstanceCreateReqDTO()
                .setProcessDefinitionKey("srm_inquiry_approve").setBusinessKey(String.valueOf(id))
                .setVariables(Map.of("inquiryNo", inquiry.getNo(), "inquiryTitle", inquiry.getTitle())));
        inquiryMapper.updateById(new SrmInquiryDO().setId(id).setProcessInstanceId(processId));
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateApprovalStatus(Long id, String processInstanceId, Integer status) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(id);
        if (!InquiryStatusEnum.APPROVING.getStatus().equals(inquiry.getStatus())
                || (StrUtil.isNotEmpty(inquiry.getProcessInstanceId()) && !Objects.equals(inquiry.getProcessInstanceId(), processInstanceId))) return;
        Integer next = null;
        if (BpmProcessInstanceStatusEnum.APPROVE.getStatus().equals(status)) next = InquiryStatusEnum.APPROVED.getStatus();
        if (BpmProcessInstanceStatusEnum.REJECT.getStatus().equals(status) || BpmProcessInstanceStatusEnum.CANCEL.getStatus().equals(status)) next = InquiryStatusEnum.REJECTED.getStatus();
        if (next != null) inquiryMapper.updateById(new SrmInquiryDO().setId(id).setStatus(next));
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void publishInquiry(Long id) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(id);
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_QUOTING.getCode(),
                    "询价单【" + inquiry.getNo() + "】当前状态为【" + statusName(inquiry.getStatus())
                            + "】,仅草稿状态可发布。");
        }
        inquiryMapper.updateByIdAndStatus(id, InquiryStatusEnum.DRAFT.getStatus(),
                new SrmInquiryDO().setStatus(InquiryStatusEnum.QUOTING.getStatus()));
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void cancelInquiry(Long id) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(id);
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.QUOTING.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.REJECTED.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_CANCELLABLE.getCode(),
                    "询价单【" + inquiry.getNo() + "】当前状态为【" + statusName(inquiry.getStatus())
                            + "】,仅草稿或询价中状态可取消。");
        }
        inquiryMapper.updateById(new SrmInquiryDO()
                .setId(id).setStatus(InquiryStatusEnum.CANCELLED.getStatus()));
        // 询价取消后解除采购申请关联,采购员可重新选择「发起询价」或「直接生成台账」
        clearPurchaseRequestLink(inquiry);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveQuotes(SrmInquiryQuoteSaveReqVO saveReqVO) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(saveReqVO.getInquiryId());
        if (!InquiryStatusEnum.DRAFT.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.QUOTING.getStatus().equals(inquiry.getStatus())
                && !InquiryStatusEnum.REJECTED.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_QUOTING.getCode(),
                    "询价单【" + inquiry.getNo() + "】当前状态为【" + statusName(inquiry.getStatus())
                            + "】,仅草稿或询价中状态可录入报价。");
        }
        List<SrmInquiryItemDO> items = inquiryItemMapper.selectListByInquiryId(inquiry.getId());
        Map<Long, SrmInquiryItemDO> itemMap = items.stream()
                .collect(Collectors.toMap(SrmInquiryItemDO::getId, Function.identity()));
        List<SrmInquirySupplierDO> participants = inquirySupplierMapper.selectListByInquiryId(inquiry.getId());
        Set<Long> participantIds = participants.stream()
                .map(SrmInquirySupplierDO::getSupplierId).collect(Collectors.toSet());
 
        Set<Long> touchedSupplierIds = new HashSet<>();
        for (SrmInquiryQuoteSaveReqVO.Quote quoteVO : saveReqVO.getQuotes()) {
            SrmInquiryItemDO item = itemMap.get(quoteVO.getInquiryItemId());
            if (item == null) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_QUOTE_NOT_EXISTS.getCode(),
                        "询价产品行ID=" + quoteVO.getInquiryItemId() + " 不属于询价单【" + inquiry.getNo()
                                + "】,请刷新比价页面后重新录入报价。");
            }
            if (!participantIds.contains(quoteVO.getSupplierId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_SUPPLIER_NOT_PARTICIPANT.getCode(),
                        "供应商ID=" + quoteVO.getSupplierId() + " 未参与询价单【" + inquiry.getNo()
                                + "】,请先在询价单中添加该供应商。");
            }
            SrmInquiryQuoteDO existing = inquiryQuoteMapper.selectByItemIdAndSupplierId(
                    quoteVO.getInquiryItemId(), quoteVO.getSupplierId());
            if (quoteVO.getPrice() == null) {
                // 清空报价
                if (existing != null) {
                    inquiryQuoteMapper.deleteById(existing.getId());
                    touchedSupplierIds.add(quoteVO.getSupplierId());
                }
                continue;
            }
            if (quoteVO.getPrice().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_QUOTE_PRICE_INVALID.getCode(),
                        "产品【" + item.getProductName() + "】供应商ID=" + quoteVO.getSupplierId()
                                + " 的报价单价为【" + quoteVO.getPrice() + "】,必须大于 0,请修改后重新保存。");
            }
            SrmInquiryQuoteDO quote = BeanUtils.toBean(quoteVO, SrmInquiryQuoteDO.class);
            quote.setInquiryId(inquiry.getId());
            quote.setIsSelected(existing != null && Boolean.TRUE.equals(existing.getIsSelected()));
            if (existing != null) {
                quote.setId(existing.getId());
                inquiryQuoteMapper.updateById(quote);
            } else {
                inquiryQuoteMapper.insert(quote);
            }
            touchedSupplierIds.add(quoteVO.getSupplierId());
        }
        // 刷新参与供应商报价状态
        LocalDateTime now = LocalDateTime.now();
        for (Long supplierId : touchedSupplierIds) {
            SrmInquirySupplierDO participant = inquirySupplierMapper
                    .selectByInquiryIdAndSupplierId(inquiry.getId(), supplierId);
            if (participant == null) {
                continue;
            }
            Long quoteCount = inquiryQuoteMapper.selectCount(new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<SrmInquiryQuoteDO>()
                    .eq(SrmInquiryQuoteDO::getInquiryId, inquiry.getId())
                    .eq(SrmInquiryQuoteDO::getSupplierId, supplierId));
            SrmInquirySupplierDO updateObj = new SrmInquirySupplierDO();
            updateObj.setId(participant.getId());
            updateObj.setQuoteStatus(quoteCount != null && quoteCount > 0 ? 10 : 0);
            updateObj.setQuoteTime(now);
            inquirySupplierMapper.updateById(updateObj);
        }
    }
 
    @Override
    public SrmInquiryRespVO getCompare(Long id) {
        return getInquiryDetail(id);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public SrmInquiryConfirmRespVO confirmInquiry(SrmInquiryConfirmReqVO confirmReqVO) {
        SrmInquiryDO inquiry = validateInquiryForUpdate(confirmReqVO.getId());
        if (!InquiryStatusEnum.APPROVED.getStatus().equals(inquiry.getStatus())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_CONFIRMABLE.getCode(), "询价单审核通过后才能转订单");
        }
        if (CollUtil.isNotEmpty(confirmReqVO.getSelections())) {
            throw new ServiceException(ErrorCodeConstants.INQUIRY_STATUS_NOT_CONFIRMABLE.getCode(), "审核通过后不能更改中标结果");
        }
        List<SrmInquiryItemDO> items = inquiryItemMapper.selectListByInquiryId(inquiry.getId());
        if (CollUtil.isEmpty(items)) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_ITEM_EMPTY);
        }
        Map<Long, SrmInquiryItemDO> itemMap = items.stream()
                .collect(Collectors.toMap(SrmInquiryItemDO::getId, Function.identity()));
        Set<Long> participantIds = inquirySupplierMapper.selectListByInquiryId(inquiry.getId()).stream()
                .map(SrmInquirySupplierDO::getSupplierId).collect(Collectors.toSet());
        List<SrmInquiryQuoteDO> allQuotes = inquiryQuoteMapper.selectListByInquiryId(inquiry.getId());
        Map<Long, SrmInquiryQuoteDO> quoteMap = allQuotes.stream()
                .collect(Collectors.toMap(SrmInquiryQuoteDO::getId, Function.identity()));
 
        // 1. 校验每个产品恰好选择一条有效报价
        //    未显式传 selections 时,使用询价单中已保存的中标选择(创建/编辑时一并录入)
        List<SrmInquiryConfirmReqVO.Selection> selections = confirmReqVO.getSelections();
        if (CollUtil.isEmpty(selections)) {
            selections = new ArrayList<>();
            for (SrmInquiryItemDO item : items) {
                if (item.getSelectedQuoteId() != null) {
                    SrmInquiryConfirmReqVO.Selection selection = new SrmInquiryConfirmReqVO.Selection();
                    selection.setInquiryItemId(item.getId());
                    selection.setQuoteId(item.getSelectedQuoteId());
                    selections.add(selection);
                }
            }
            if (CollUtil.isEmpty(selections)) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_REQUIRED.getCode(),
                        "询价单【" + inquiry.getNo() + "】尚未保存任何中标选择,请编辑询价单为每个产品选择中标供应商后再确认。");
            }
        }
        Map<Long, SrmInquiryQuoteDO> selectedByItem = new HashMap<>();
        for (SrmInquiryConfirmReqVO.Selection selection : selections) {
            SrmInquiryItemDO item = itemMap.get(selection.getInquiryItemId());
            if (item == null) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_QUOTE_MISMATCH.getCode(),
                        "询价产品行ID=" + selection.getInquiryItemId() + " 不属于询价单【" + inquiry.getNo()
                                + "】,请刷新比价页面后重新选择中标报价。");
            }
            if (selectedByItem.containsKey(item.getId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_DUPLICATE.getCode(),
                        "产品【" + item.getProductName() + "】选择了多条中标报价,请为每个产品只保留一条中标报价。");
            }
            SrmInquiryQuoteDO quote = quoteMap.get(selection.getQuoteId());
            if (quote == null) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_QUOTE_NOT_EXISTS.getCode(),
                        "中标报价ID=" + selection.getQuoteId() + " 不存在,请刷新比价页面后重新选择。");
            }
            if (!quote.getInquiryItemId().equals(item.getId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_QUOTE_MISMATCH.getCode(),
                        "产品【" + item.getProductName() + "】选择的中标报价属于产品行ID=" + quote.getInquiryItemId()
                                + ",请重新选择该产品自己的报价。");
            }
            if (!participantIds.contains(quote.getSupplierId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_SUPPLIER_NOT_PARTICIPANT.getCode(),
                        "供应商ID=" + quote.getSupplierId() + " 未参与询价单【" + inquiry.getNo()
                                + "】,无法作为中标供应商。");
            }
            if (quote.getPrice() == null || quote.getPrice().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_QUOTE_PRICE_INVALID.getCode(),
                        "产品【" + item.getProductName() + "】的中标报价单价为空或小于等于 0,请先录入报价后再确认。");
            }
            selectedByItem.put(item.getId(), quote);
        }
        for (SrmInquiryItemDO item : items) {
            if (!selectedByItem.containsKey(item.getId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_REQUIRED.getCode(),
                        "产品【" + StrUtil.blankToDefault(item.getProductName(), "ID=" + item.getProductId())
                                + "】尚未选择中标供应商,请为该产品选择一条中标报价后再确认。");
            }
        }
 
        // 2. 记录中标结果
        for (SrmInquiryQuoteDO quote : allQuotes) {
            if (Boolean.TRUE.equals(quote.getIsSelected())) {
                inquiryQuoteMapper.updateById(new SrmInquiryQuoteDO().setId(quote.getId()).setIsSelected(false));
            }
        }
        for (Map.Entry<Long, SrmInquiryQuoteDO> entry : selectedByItem.entrySet()) {
            SrmInquiryItemDO item = itemMap.get(entry.getKey());
            SrmInquiryQuoteDO quote = entry.getValue();
            inquiryQuoteMapper.updateById(new SrmInquiryQuoteDO().setId(quote.getId()).setIsSelected(true));
            inquiryItemMapper.updateById(new SrmInquiryItemDO()
                    .setId(item.getId())
                    .setSelectedSupplierId(quote.getSupplierId())
                    .setSelectedQuoteId(quote.getId())
                    .setSelectedPrice(quote.getPrice()));
        }
 
        // 3. 按中标供应商分组生成采购订单草稿
        Map<Long, List<QuoteWithItem>> winnersBySupplier = new LinkedHashMap<>();
        for (Map.Entry<Long, SrmInquiryQuoteDO> entry : selectedByItem.entrySet()) {
            QuoteWithItem pair = new QuoteWithItem(itemMap.get(entry.getKey()), entry.getValue());
            winnersBySupplier.computeIfAbsent(entry.getValue().getSupplierId(), k -> new ArrayList<>()).add(pair);
        }
        Map<Long, SrmSupplierDO> supplierMap = supplierService.getSupplierMap(winnersBySupplier.keySet());
        List<SrmInquiryConfirmRespVO.Order> orders = new ArrayList<>();
        for (Map.Entry<Long, List<QuoteWithItem>> entry : winnersBySupplier.entrySet()) {
            Long supplierId = entry.getKey();
            SrmSupplierDO supplier = supplierMap.get(supplierId);
            String supplierName = supplier != null ? supplier.getName() : "ID=" + supplierId;
 
            List<ErpPurchaseOrderCreateReqDTO.Item> orderItems = new ArrayList<>();
            for (QuoteWithItem pair : entry.getValue()) {
                SrmInquiryItemDO item = pair.item;
                SrmInquiryQuoteDO quote = pair.quote;
                Long productUnitId = item.getProductUnitId();
                if (productUnitId == null) {
                    MdmItemRespDTO mdmItem = mdmItemApi.getItem(item.getProductId()).getCheckedData();
                    productUnitId = mdmItem != null ? mdmItem.getUnitMeasureId() : null;
                }
                ErpPurchaseOrderCreateReqDTO.Item orderItem = new ErpPurchaseOrderCreateReqDTO.Item();
                orderItem.setProductId(item.getProductId());
                orderItem.setProductUnitId(productUnitId);
                orderItem.setProductPrice(quote.getPrice());
                orderItem.setCount(item.getQuantity());
                orderItem.setTaxPercent(quote.getTaxRate());
                orderItem.setRemark("SRM询价 " + inquiry.getNo());
                // 与采购申请/采购台账一致:新生成的采购明细默认质检
                orderItem.setQcCheckFlag(true);
                orderItems.add(orderItem);
            }
            ErpPurchaseOrderCreateReqDTO createReqDTO = new ErpPurchaseOrderCreateReqDTO();
            createReqDTO.setSupplierId(supplierId);
            createReqDTO.setOrderTime(LocalDateTime.now());
            createReqDTO.setPaymentDate(confirmReqVO.getPaymentDate().atStartOfDay());
            createReqDTO.setDiscountPercent(BigDecimal.ZERO);
            createReqDTO.setDepositPrice(BigDecimal.ZERO);
            createReqDTO.setSourceType(2);
            createReqDTO.setSourceNo(inquiry.getNo());
            createReqDTO.setSourceId(inquiry.getId());
            createReqDTO.setPurchaseRequestId(inquiry.getPurchaseRequestId());
            createReqDTO.setRemark("SRM询价自动生成,询价单号:" + inquiry.getNo());
            createReqDTO.setItems(orderItems);
 
            Long purchaseOrderId;
            try {
                purchaseOrderId = erpPurchaseOrderApi.createPurchaseOrderDraft(createReqDTO).getCheckedData();
            } catch (Exception ex) {
                log.error("[confirmInquiry] 询价单({}) 供应商({}) 生成采购订单失败", inquiry.getNo(), supplierId, ex);
                throw new ServiceException(ErrorCodeConstants.INQUIRY_ORDER_GENERATE_FAIL.getCode(),
                        "询价单【" + inquiry.getNo() + "】为供应商【" + supplierName
                                + "】生成采购订单失败:" + ex.getMessage() + "。请检查该供应商与产品资料后重试。");
            }
            String purchaseOrderNo = null;
            try {
                ErpPurchaseOrderRespDTO order = erpPurchaseOrderApi.getPurchaseOrder(purchaseOrderId).getCheckedData();
                purchaseOrderNo = order != null ? order.getNo() : null;
            } catch (Exception ex) {
                log.warn("[confirmInquiry] 获取采购订单号失败,purchaseOrderId={}", purchaseOrderId, ex);
            }
            inquiryOrderMapper.insert(SrmInquiryOrderDO.builder()
                    .inquiryId(inquiry.getId())
                    .supplierId(supplierId)
                    .purchaseOrderId(purchaseOrderId)
                    .purchaseOrderNo(purchaseOrderNo)
                    .build());
 
            SrmInquiryConfirmRespVO.Order orderResult = new SrmInquiryConfirmRespVO.Order();
            orderResult.setSupplierId(supplierId);
            orderResult.setSupplierName(supplierName);
            orderResult.setPurchaseOrderId(purchaseOrderId);
            orderResult.setPurchaseOrderNo(purchaseOrderNo);
            orders.add(orderResult);
        }
 
        // 3.1 询价单来源于采购申请时,回写采购申请关联的采购台账
        //     一个询价单可能按中标供应商拆成多张台账,采购申请只记录第一张,完整清单可通过台账的采购申请字段反查
        if (inquiry.getPurchaseRequestId() != null && CollUtil.isNotEmpty(orders)) {
            SrmInquiryConfirmRespVO.Order firstOrder = orders.get(0);
            if (orders.size() > 1) {
                log.info("[confirmInquiry] 询价单({}) 为采购申请({}) 生成 {} 张台账,采购申请仅回写首张台账({})",
                        inquiry.getNo(), inquiry.getPurchaseRequestNo(), orders.size(), firstOrder.getPurchaseOrderNo());
            }
            try {
                erpPurchaseRequestApi.updatePurchaseRequestOrder(inquiry.getPurchaseRequestId(),
                        firstOrder.getPurchaseOrderId(), firstOrder.getPurchaseOrderNo());
            } catch (Exception ex) {
                log.error("[confirmInquiry] 询价单({}) 回写采购申请({}) 关联台账失败",
                        inquiry.getNo(), inquiry.getPurchaseRequestNo(), ex);
                throw new ServiceException(ErrorCodeConstants.INQUIRY_ORDER_GENERATE_FAIL.getCode(),
                        "询价单【" + inquiry.getNo() + "】已生成采购台账【"
                                + StrUtil.blankToDefault(firstOrder.getPurchaseOrderNo(), "ID=" + firstOrder.getPurchaseOrderId())
                                + "】,但回写采购申请【" + inquiry.getPurchaseRequestNo() + "】失败:" + ex.getMessage()
                                + "。请到采购申请中核对关联台账,或联系管理员处理。");
            }
        }
 
        // 4. 更新询价单为已转订单(状态条件更新,避免并发重复生成)
        int updated = inquiryMapper.updateByIdAndStatus(inquiry.getId(), inquiry.getStatus(),
                new SrmInquiryDO().setStatus(InquiryStatusEnum.CONFIRMED.getStatus()));
        if (updated == 0) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_ALREADY_CONFIRMED);
        }
        SrmInquiryConfirmRespVO result = new SrmInquiryConfirmRespVO();
        result.setInquiryId(inquiry.getId());
        result.setOrders(orders);
        return result;
    }
 
    // ========== 组装 ==========
 
    private SrmInquiryRespVO buildInquiryResp(SrmInquiryDO inquiry) {
        SrmInquiryRespVO respVO = BeanUtils.toBean(inquiry, SrmInquiryRespVO.class);
        List<SrmInquiryItemDO> items = inquiryItemMapper.selectListByInquiryId(inquiry.getId());
        List<SrmInquirySupplierDO> participants = inquirySupplierMapper.selectListByInquiryId(inquiry.getId());
        List<SrmInquiryQuoteDO> quotes = inquiryQuoteMapper.selectListByInquiryId(inquiry.getId());
        List<SrmInquiryOrderDO> inquiryOrders = inquiryOrderMapper.selectListByInquiryId(inquiry.getId());
 
        Set<Long> supplierIds = new HashSet<>();
        participants.forEach(p -> supplierIds.add(p.getSupplierId()));
        quotes.forEach(q -> supplierIds.add(q.getSupplierId()));
        inquiryOrders.forEach(o -> supplierIds.add(o.getSupplierId()));
        Map<Long, SrmSupplierDO> supplierMap = supplierService.getSupplierMap(supplierIds);
 
        respVO.setItems(BeanUtils.toBean(items, SrmInquiryRespVO.Item.class));
        respVO.setQuotes(BeanUtils.toBean(quotes, SrmInquiryRespVO.Quote.class));
 
        List<SrmInquiryRespVO.Supplier> supplierVOs = BeanUtils.toBean(participants, SrmInquiryRespVO.Supplier.class);
        supplierVOs.forEach(vo -> {
            SrmSupplierDO supplier = supplierMap.get(vo.getSupplierId());
            if (supplier != null) {
                vo.setSupplierName(supplier.getName());
                vo.setSupplierCode(supplier.getCode());
            }
        });
        respVO.setSuppliers(supplierVOs);
 
        List<SrmInquiryRespVO.Order> orderVOs = BeanUtils.toBean(inquiryOrders, SrmInquiryRespVO.Order.class);
        orderVOs.forEach(vo -> {
            SrmSupplierDO supplier = supplierMap.get(vo.getSupplierId());
            if (supplier != null) {
                vo.setSupplierName(supplier.getName());
            }
        });
        respVO.setOrders(orderVOs);
        return respVO;
    }
 
    // ========== 保存辅助 ==========
 
    private void validateInquiryInput(SrmInquirySaveReqVO reqVO) {
        if (CollUtil.isEmpty(reqVO.getItems())) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_ITEM_EMPTY);
        }
        if (CollUtil.isEmpty(reqVO.getSuppliers())) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_SUPPLIER_EMPTY);
        }
        Set<Long> productIds = new HashSet<>();
        for (SrmInquirySaveReqVO.Item item : reqVO.getItems()) {
            if (!productIds.add(item.getProductId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_ITEM_EMPTY.getCode(),
                        "产品ID=" + item.getProductId() + " 在询价单中重复添加,请为每个产品只保留一行。");
            }
            if (item.getQuantity() == null || item.getQuantity().compareTo(BigDecimal.ZERO) <= 0) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_ITEM_EMPTY.getCode(),
                        "产品【" + StrUtil.blankToDefault(item.getProductName(), "ID=" + item.getProductId())
                                + "】的采购数量必须大于 0,请填写数量后重新保存。");
            }
        }
        Set<Long> supplierIds = new HashSet<>();
        for (SrmInquirySaveReqVO.Supplier supplier : reqVO.getSuppliers()) {
            if (!supplierIds.add(supplier.getSupplierId())) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_SUPPLIER_DUPLICATE.getCode(),
                        "供应商ID=" + supplier.getSupplierId() + " 在询价单中重复添加,请为每个供应商只保留一行。");
            }
        }
        validateSuppliers(supplierIds);
    }
 
    private void validateSuppliers(Collection<Long> supplierIds) {
        List<SrmSupplierDO> suppliers = supplierService.getSupplierList(supplierIds);
        Map<Long, SrmSupplierDO> map = suppliers.stream()
                .collect(Collectors.toMap(SrmSupplierDO::getId, Function.identity()));
        for (Long supplierId : supplierIds) {
            SrmSupplierDO supplier = map.get(supplierId);
            if (supplier == null) {
                throw new ServiceException(ErrorCodeConstants.SUPPLIER_NOT_EXISTS.getCode(),
                        "供应商ID=" + supplierId + " 不存在,请刷新供应商列表后重新选择。");
            }
            if (supplier.getStatus() != null && !CommonStatusEnum.ENABLE.getStatus().equals(supplier.getStatus())) {
                throw new ServiceException(ErrorCodeConstants.SUPPLIER_NOT_ENABLE.getCode(),
                        "供应商【" + supplier.getName() + "】已停用,请先在供应商档案中启用后再参与询价。");
            }
        }
    }
 
    private List<SrmInquiryItemDO> saveItems(Long inquiryId, List<SrmInquirySaveReqVO.Item> itemVOs) {
        List<SrmInquiryItemDO> savedItems = new ArrayList<>();
 
        Set<Long> productIds = itemVOs.stream().map(SrmInquirySaveReqVO.Item::getProductId)
                .collect(Collectors.toSet());
        Map<Long, MdmItemRespDTO> itemMap = mdmItemApi.getItemList(productIds).getCheckedData().stream()
                .collect(Collectors.toMap(MdmItemRespDTO::getId, Function.identity()));
        Set<Long> unitIds = itemMap.values().stream().map(MdmItemRespDTO::getUnitMeasureId)
                .filter(Objects::nonNull).collect(Collectors.toSet());
        Map<Long, MdmUnitMeasureRespDTO> unitMap = unitIds.isEmpty() ? Collections.emptyMap()
                : mdmUnitMeasureApi.getUnitMeasureMap(unitIds);
 
        for (int i = 0; i < itemVOs.size(); i++) {
            SrmInquirySaveReqVO.Item itemVO = itemVOs.get(i);
            MdmItemRespDTO mdmItem = itemMap.get(itemVO.getProductId());
            if (mdmItem == null) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_ITEM_EMPTY.getCode(),
                        "产品ID=" + itemVO.getProductId() + " 不存在,请重新选择产品。");
            }
            SrmInquiryItemDO item = BeanUtils.toBean(itemVO, SrmInquiryItemDO.class);
            item.setId(null);
            item.setInquiryId(inquiryId);
            item.setProductCode(StrUtil.blankToDefault(itemVO.getProductCode(), mdmItem.getCode()));
            item.setProductName(StrUtil.blankToDefault(itemVO.getProductName(), mdmItem.getName()));
            item.setProductSpec(StrUtil.blankToDefault(itemVO.getProductSpec(), mdmItem.getSpecification()));
            Long productUnitId = itemVO.getProductUnitId() != null ? itemVO.getProductUnitId()
                    : mdmItem.getUnitMeasureId();
            item.setProductUnitId(productUnitId);
            if (StrUtil.isBlank(itemVO.getUnitName()) && productUnitId != null) {
                MdmUnitMeasureRespDTO unit = unitMap.get(productUnitId);
                item.setUnitName(unit != null ? unit.getName() : null);
            }
            item.setSort(i);
            inquiryItemMapper.insert(item);
            savedItems.add(item);
        }
        return savedItems;
    }
 
    /**
     * 保存产品行报价与中标选择(创建/编辑询价单时一并写入)
     */
    private void saveItemQuotes(Long inquiryId, List<SrmInquiryItemDO> items,
                                List<SrmInquirySaveReqVO.Item> itemVOs, Set<Long> participantIds) {
        for (int i = 0; i < items.size(); i++) {
            SrmInquiryItemDO item = items.get(i);
            SrmInquirySaveReqVO.Item itemVO = itemVOs.get(i);
            String productLabel = StrUtil.blankToDefault(item.getProductName(), "ID=" + item.getProductId());
            List<SrmInquirySaveReqVO.Quote> quoteVOs = itemVO.getQuotes() == null
                    ? Collections.emptyList() : itemVO.getQuotes();
            Set<Long> quoteSupplierIds = new HashSet<>();
            SrmInquiryQuoteDO selectedQuote = null;
            for (SrmInquirySaveReqVO.Quote quoteVO : quoteVOs) {
                if (!quoteSupplierIds.add(quoteVO.getSupplierId())) {
                    throw new ServiceException(ErrorCodeConstants.INQUIRY_SUPPLIER_DUPLICATE.getCode(),
                            "产品【" + productLabel + "】的供应商ID=" + quoteVO.getSupplierId()
                                    + " 报价重复,请为每个供应商只保留一条报价。");
                }
                if (!participantIds.contains(quoteVO.getSupplierId())) {
                    throw new ServiceException(ErrorCodeConstants.INQUIRY_SUPPLIER_NOT_PARTICIPANT.getCode(),
                            "供应商ID=" + quoteVO.getSupplierId() + " 未参与询价单,无法录入产品【"
                                    + productLabel + "】的报价,请先在参与供应商中添加该供应商。");
                }
                if (quoteVO.getPrice() == null || quoteVO.getPrice().compareTo(BigDecimal.ZERO) <= 0) {
                    throw new ServiceException(ErrorCodeConstants.INQUIRY_QUOTE_PRICE_INVALID.getCode(),
                            "产品【" + productLabel + "】供应商ID=" + quoteVO.getSupplierId()
                                    + " 的报价单价为【" + quoteVO.getPrice() + "】,必须大于 0,请修改后重新保存。");
                }
                boolean selected = itemVO.getSelectedSupplierId() != null
                        && itemVO.getSelectedSupplierId().equals(quoteVO.getSupplierId());
                SrmInquiryQuoteDO quote = BeanUtils.toBean(quoteVO, SrmInquiryQuoteDO.class);
                quote.setInquiryId(inquiryId);
                quote.setInquiryItemId(item.getId());
                quote.setIsSelected(selected);
                inquiryQuoteMapper.insert(quote);
                if (selected) {
                    selectedQuote = quote;
                }
            }
            Long selectedSupplierId = itemVO.getSelectedSupplierId();
            if (selectedSupplierId != null && selectedQuote == null) {
                throw new ServiceException(ErrorCodeConstants.INQUIRY_WINNER_QUOTE_MISMATCH.getCode(),
                        "产品【" + productLabel + "】选择的中标供应商ID=" + selectedSupplierId
                                + " 没有录入报价,请先填写该供应商的报价,或改选其他已报价供应商。");
            }
            if (selectedQuote != null) {
                inquiryItemMapper.updateById(new SrmInquiryItemDO()
                        .setId(item.getId())
                        .setSelectedSupplierId(selectedQuote.getSupplierId())
                        .setSelectedQuoteId(selectedQuote.getId())
                        .setSelectedPrice(selectedQuote.getPrice()));
            }
        }
    }
 
    private void saveSuppliers(Long inquiryId, List<SrmInquirySaveReqVO.Supplier> supplierVOs) {
        for (SrmInquirySaveReqVO.Supplier supplierVO : supplierVOs) {
            inquirySupplierMapper.insert(SrmInquirySupplierDO.builder()
                    .inquiryId(inquiryId)
                    .supplierId(supplierVO.getSupplierId())
                    .quoteStatus(0)
                    .remark(supplierVO.getRemark())
                    .build());
        }
    }
 
    // ========== 校验 ==========
 
    private SrmInquiryDO validateInquiryForUpdate(Long id) {
        SrmInquiryDO inquiry = inquiryMapper.selectByIdForUpdate(id);
        if (inquiry == null) throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_NOT_EXISTS);
        return inquiry;
    }
 
    private SrmInquiryDO validateInquiryExists(Long id) {
        SrmInquiryDO inquiry = inquiryMapper.selectById(id);
        if (inquiry == null) {
            throw ServiceExceptionUtil.exception(ErrorCodeConstants.INQUIRY_NOT_EXISTS);
        }
        return inquiry;
    }
 
    private String generateInquiryNo() {
        String date = LocalDate.now().format(NO_DATE_FORMAT);
        for (int attempt = 0; attempt < 20; attempt++) {
            int seq = (int) (Math.random() * 9000) + 1000;
            String no = "XJ" + date + String.format("%04d", seq);
            if (inquiryMapper.selectByNo(no) == null) {
                return no;
            }
        }
        throw new ServiceException(ErrorCodeConstants.INQUIRY_NO_GENERATE_FAIL.getCode(),
                "询价单号在多次尝试后仍重复,请稍后重试。");
    }
 
    /**
     * 询价单被取消/删除时,解除对采购申请的关联,让采购员可重新选择「发起询价」或「直接生成台账」。
     * 解除失败只记录日志,不阻断取消操作;发起询价时会再按询价单状态做兜底判断。
     */
    private void clearPurchaseRequestLink(SrmInquiryDO inquiry) {
        if (inquiry.getPurchaseRequestId() == null) {
            return;
        }
        try {
            erpPurchaseRequestApi.clearPurchaseRequestInquiry(inquiry.getPurchaseRequestId());
        } catch (Exception ex) {
            log.warn("[clearPurchaseRequestLink] 询价单({}) 解除采购申请({}) 关联失败,请人工核对",
                    inquiry.getNo(), inquiry.getPurchaseRequestNo(), ex);
        }
    }
 
    /**
     * 解析产品名称,仅用于异常提示;解析失败时回退为可读 ID,避免二次异常
     */
    private String resolveItemName(Long productId) {
        if (productId == null) {
            return "未选择";
        }
        try {
            MdmItemRespDTO item = mdmItemApi.getItem(productId).getCheckedData();
            if (item != null && StrUtil.isNotBlank(item.getName())) {
                return item.getName();
            }
        } catch (Exception ex) {
            log.warn("[resolveItemName] 查询产品({}) 名称失败", productId, ex);
        }
        return "ID=" + productId;
    }
 
    private String statusName(Integer status) {
        for (InquiryStatusEnum e : InquiryStatusEnum.values()) {
            if (e.getStatus().equals(status)) {
                return e.getName();
            }
        }
        return "未知";
    }
 
    private static class QuoteWithItem {
        private final SrmInquiryItemDO item;
        private final SrmInquiryQuoteDO quote;
 
        private QuoteWithItem(SrmInquiryItemDO item, SrmInquiryQuoteDO quote) {
            this.item = item;
            this.quote = quote;
        }
    }
 
}