From 70ea74cfb981f812bfa4e3ef91843c5ad93f7b27 Mon Sep 17 00:00:00 2001
From: gaoluyang <2820782392@qq.com>
Date: 星期三, 04 十一月 2026 17:32:49 +0800
Subject: [PATCH] feat(erp): 采购台账改造与采购退货增强

---
 yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnvendor/MesWmReturnVendorServiceImpl.java |  425 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 419 insertions(+), 6 deletions(-)

diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnvendor/MesWmReturnVendorServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnvendor/MesWmReturnVendorServiceImpl.java
index 37f56fb..63cd140 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnvendor/MesWmReturnVendorServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/returnvendor/MesWmReturnVendorServiceImpl.java
@@ -2,29 +2,49 @@
 
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.ObjUtil;
+import cn.hutool.core.util.StrUtil;
+import cn.iocoder.yudao.framework.common.exception.ServiceException;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.collection.CollectionUtils;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.framework.common.util.object.ObjectUtils;
+import cn.iocoder.yudao.module.bpm.api.task.BpmProcessInstanceApi;
+import cn.iocoder.yudao.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.returnvendor.vo.MesWmReturnVendorPageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.returnvendor.vo.MesWmReturnVendorSaveReqVO;
+import cn.iocoder.yudao.module.mes.controller.admin.wm.returnvendor.vo.line.MesWmReturnVendorLineSaveReqVO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnvendor.MesWmReturnVendorDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnvendor.MesWmReturnVendorDetailDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.returnvendor.MesWmReturnVendorLineDO;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.returnvendor.MesWmReturnVendorMapper;
 import cn.iocoder.yudao.module.mes.enums.MesBizTypeConstants;
+import cn.iocoder.yudao.module.mes.enums.wm.MesWmReturnVendorHandleTypeEnum;
 import cn.iocoder.yudao.module.mes.enums.wm.MesWmReturnVendorStatusEnum;
 import cn.iocoder.yudao.module.mes.enums.wm.MesWmTransactionTypeEnum;
+import cn.iocoder.yudao.module.erp.api.finance.ErpFinancePaymentApi;
+import cn.iocoder.yudao.module.erp.api.finance.dto.ErpFinancePaymentRedFlushCreateReqDTO;
+import cn.iocoder.yudao.module.erp.api.purchase.ErpPurchaseOrderApi;
+import cn.iocoder.yudao.module.erp.api.purchase.dto.ErpPurchaseOrderItemRespDTO;
+import cn.iocoder.yudao.module.erp.api.purchase.dto.ErpPurchaseOrderRespDTO;
 import cn.iocoder.yudao.module.srm.api.supplier.SrmSupplierApi;
+import cn.iocoder.yudao.module.mes.service.wm.arrivalnotice.MesWmArrivalNoticeService;
 import cn.iocoder.yudao.module.mes.service.wm.transaction.MesWmTransactionService;
 import cn.iocoder.yudao.module.mes.service.wm.transaction.dto.MesWmTransactionSaveReqDTO;
+import cn.iocoder.yudao.module.system.api.storage.StorageAttachmentApi;
 import jakarta.annotation.Resource;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
 
 import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertList;
@@ -37,6 +57,11 @@
 @Validated
 public class MesWmReturnVendorServiceImpl implements MesWmReturnVendorService {
 
+    /**
+     * 闄勪欢涓氬姟绫诲瀷锛歁ES 渚涘簲鍟嗛��璐у崟
+     */
+    public static final String RETURN_VENDOR_RECORD_TYPE = "mes_wm_return_vendor";
+
     @Resource
     private MesWmReturnVendorMapper returnVendorMapper;
 
@@ -48,29 +73,86 @@
     private SrmSupplierApi srmSupplierApi;
     @Resource
     private MesWmTransactionService wmTransactionService;
+    @Resource
+    private ErpPurchaseOrderApi purchaseOrderApi;
+    @Resource
+    private ErpFinancePaymentApi financePaymentApi;
+    @Resource
+    private MesWmArrivalNoticeService arrivalNoticeService;
+    @Resource
+    private StorageAttachmentApi storageAttachmentApi;
+    @Resource
+    private BpmProcessInstanceApi processInstanceApi;
 
     @Override
     @Transactional(rollbackFor = Exception.class)
     public Long createReturnVendor(MesWmReturnVendorSaveReqVO createReqVO) {
         // 1. 鏍¢獙鏁版嵁
         validateReturnVendorSaveData(createReqVO);
+        // 1.1. 鑻ラ噰璐鍗曞彿涓虹┖浣嗗叧鑱斾簡閲囪喘璁㈠崟锛屽垯浠� ERP 閲囪喘璁㈠崟琛ラ綈璁㈠崟鍙枫�佸悎鍚屽彿
+        fillFromPurchaseOrder(createReqVO);
 
         // 2. 鎻掑叆涓昏〃
         MesWmReturnVendorDO returnVendor = BeanUtils.toBean(createReqVO, MesWmReturnVendorDO.class);
         returnVendor.setStatus(MesWmReturnVendorStatusEnum.PREPARE.getStatus());
         returnVendorMapper.insert(returnVendor);
+
+        // 2.1. 鍏宠仈浜嗛噰璐鍗曪細鑷姩鎶婅鍗曠墿鏂欏甫鍏ラ��璐ц锛堟棤鍙��鐗╂枡鏃堕潤榛橈紝涓嶅奖鍝嶅崟鎹垱寤猴級
+        if (returnVendor.getPurchaseOrderId() != null) {
+            autoImportLinesFromLinkedOrder(returnVendor.getId(), false);
+        }
+        // 2.2. 缁戝畾闄勪欢锛堣川閲忛儴鍙戣捣閫�璐ф椂涓婁紶鐨勬楠屾姤鍛娿�佺収鐗囩瓑锛�
+        storageAttachmentApi.bindAttachments("file", RETURN_VENDOR_RECORD_TYPE,
+                returnVendor.getId(), createReqVO.getBlobIds());
         return returnVendor.getId();
     }
 
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void updateReturnVendor(MesWmReturnVendorSaveReqVO updateReqVO) {
-        // 1. 鏍¢獙鏁版嵁
-        validateReturnVendorSaveData(updateReqVO);
+        // 1. 鏍¢獙鏁版嵁锛堝惈瀛樺湪 + 鑽夌鐘舵�侊級
+        MesWmReturnVendorDO oldReturnVendor = validateReturnVendorSaveData(updateReqVO);
+        // 1.1. 鑻ラ噰璐鍗曞彿涓虹┖浣嗗叧鑱斾簡閲囪喘璁㈠崟锛屽垯浠� ERP 閲囪喘璁㈠崟琛ラ綈璁㈠崟鍙枫�佸悎鍚屽彿
+        fillFromPurchaseOrder(updateReqVO);
+
+        Long oldPurchaseOrderId = oldReturnVendor != null ? oldReturnVendor.getPurchaseOrderId() : null;
+        Long newPurchaseOrderId = updateReqVO.getPurchaseOrderId();
+        boolean purchaseOrderChanged = !ObjUtil.equal(oldPurchaseOrderId, newPurchaseOrderId);
 
         // 2. 鏇存柊涓昏〃
         MesWmReturnVendorDO updateObj = BeanUtils.toBean(updateReqVO, MesWmReturnVendorDO.class);
         returnVendorMapper.updateById(updateObj);
+
+        // 3. 鍏宠仈浜嗛噰璐鍗曪細鑷姩鍚屾鐗╂枡琛岋紝淇濊瘉琛岀墿鏂欎笌璇ラ噰璐鍗曚竴鑷�
+        //    3.1 鏇存崲浜嗛噰璐鍗� 鈫� 鍏堟竻绌烘棫璁㈠崟甯﹀叆鐨勮锛屽啀鎸夋柊璁㈠崟閲嶆柊甯﹀叆
+        //    3.2 閲囪喘璁㈠崟鏈彉浣嗗綋鍓嶆棤琛� 鈫� 鍏滃簳鑷姩甯﹀叆锛堝巻鍙叉暟鎹垨甯︽枡琚腑鏂殑鍦烘櫙锛�
+        if (newPurchaseOrderId != null) {
+            autoImportLinesFromLinkedOrder(updateReqVO.getId(), purchaseOrderChanged);
+        }
+
+        // 4. 澧為噺鏇存柊闄勪欢锛堝彧澶勭悊鏂板/鍒犻櫎锛屾湭浼� blobIds 鏃朵笉鍔ㄧ幇鏈夐檮浠讹級
+        storageAttachmentApi.updateAttachments("file", RETURN_VENDOR_RECORD_TYPE,
+                updateReqVO.getId(), updateReqVO.getBlobIds());
+    }
+
+    /**
+     * 鍏宠仈浜嗛噰璐鍗曟椂锛屼粠 ERP 閲囪喘璁㈠崟琛ラ綈閲囪喘璁㈠崟鍙枫�佸悎鍚屽彿锛堝悎鍚屽彿鍙仛蹇収锛屼笉鍏佽鎵嬪伐鐢熸垚锛�
+     */
+    private void fillFromPurchaseOrder(MesWmReturnVendorSaveReqVO reqVO) {
+        if (reqVO == null || reqVO.getPurchaseOrderId() == null) {
+            return;
+        }
+        ErpPurchaseOrderRespDTO purchaseOrder =
+                purchaseOrderApi.getPurchaseOrder(reqVO.getPurchaseOrderId()).getCheckedData();
+        if (purchaseOrder == null) {
+            return;
+        }
+        if (StrUtil.isBlank(reqVO.getPurchaseOrderCode())) {
+            reqVO.setPurchaseOrderCode(purchaseOrder.getNo());
+        }
+        if (StrUtil.isBlank(reqVO.getContractNo())) {
+            reqVO.setContractNo(purchaseOrder.getContractNo());
+        }
     }
 
     @Override
@@ -83,7 +165,9 @@
         returnVendorDetailService.deleteReturnVendorDetailByReturnId(id);
         // 2.2 绾ц仈鍒犻櫎琛�
         returnVendorLineService.deleteReturnVendorLineByReturnId(id);
-        // 2.3 鍒犻櫎涓昏〃
+        // 2.3 鍒犻櫎闄勪欢
+        storageAttachmentApi.deleteAttachmentsByRecord(RETURN_VENDOR_RECORD_TYPE, id);
+        // 2.4 鍒犻櫎涓昏〃
         returnVendorMapper.deleteById(id);
     }
 
@@ -115,6 +199,80 @@
 
     @Override
     @Transactional(rollbackFor = Exception.class)
+    public void submitReturnVendorApproval(Long id, String processDefinitionKey) {
+        // 1. 鏍¢獙瀛樺湪 + 鑽夌鐘舵�� + 鑷冲皯涓�鏉¤
+        validateReturnVendorExistsAndPrepare(id);
+        if (CollUtil.isEmpty(returnVendorLineService.getReturnVendorLineListByReturnId(id))) {
+            throw exception(WM_RETURN_VENDOR_NO_LINE);
+        }
+
+        // 2. 鍏ㄥ眬鍏嶅鎵癸細鐩存帴缃负銆屽緟鎷h揣銆嶏紝鏃犻渶娴佺▼妯″瀷
+        if (processInstanceApi.isGlobalAutoApprove()) {
+            returnVendorMapper.updateById(new MesWmReturnVendorDO()
+                    .setId(id)
+                    .setStatus(MesWmReturnVendorStatusEnum.APPROVING.getStatus())
+                    .setProcessDefinitionKey(processDefinitionKey)
+                    .setProcessInstanceId(""));
+            return;
+        }
+
+        // 3. 鍒涘缓 BPM 娴佺▼瀹炰緥锛涙祦绋嬫湭鍙戝竷鏃剁粰鍑烘槑纭彁绀�
+        String processInstanceId;
+        try {
+            processInstanceId = processInstanceApi.createProcessInstance(getCurrentUserId(),
+                    new BpmProcessInstanceCreateReqDTO()
+                            .setProcessDefinitionKey(processDefinitionKey)
+                            .setBusinessKey(String.valueOf(id)));
+        } catch (ServiceException ex) {
+            if (cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants.PROCESS_DEFINITION_NOT_EXISTS
+                    .getCode().equals(ex.getCode())) {
+                throw exception(WM_RETURN_VENDOR_APPROVE_PROCESS_NOT_PUBLISHED, processDefinitionKey);
+            }
+            throw ex;
+        }
+
+        // 4. 鏇存柊閫�璐у崟鐘舵�佷负瀹℃壒涓�
+        returnVendorMapper.updateById(new MesWmReturnVendorDO()
+                .setId(id)
+                .setStatus(MesWmReturnVendorStatusEnum.BPM_APPROVING.getStatus())
+                .setProcessDefinitionKey(processDefinitionKey)
+                .setProcessInstanceId(processInstanceId));
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void updateReturnVendorAuditStatus(Long id, Integer bpmResult) {
+        // 1. 鏍¢獙瀛樺湪 + 瀹℃壒涓�
+        MesWmReturnVendorDO returnVendor = validateReturnVendorExists(id);
+        if (!MesWmReturnVendorStatusEnum.BPM_APPROVING.getStatus().equals(returnVendor.getStatus())) {
+            return;
+        }
+
+        // 2. 鏍规嵁瀹℃壒缁撴灉鏇存柊鐘舵�侊細閫氳繃 -> 寰呮嫞璐э紱椹冲洖 -> 鑽夌锛涘彇娑� -> 宸插彇娑�
+        Integer newStatus = convertBpmResultToReturnVendorStatus(bpmResult);
+        if (newStatus != null) {
+            returnVendorMapper.updateById(new MesWmReturnVendorDO().setId(id).setStatus(newStatus));
+        }
+    }
+
+    /**
+     * 杞崲 BPM 瀹℃壒缁撴灉涓轰緵搴斿晢閫�璐у崟鐘舵��
+     */
+    private Integer convertBpmResultToReturnVendorStatus(Integer bpmResult) {
+        if (cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum.APPROVE.getStatus().equals(bpmResult)) {
+            return MesWmReturnVendorStatusEnum.APPROVING.getStatus();
+        }
+        if (cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum.REJECT.getStatus().equals(bpmResult)) {
+            return MesWmReturnVendorStatusEnum.PREPARE.getStatus();
+        }
+        if (cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum.CANCEL.getStatus().equals(bpmResult)) {
+            return MesWmReturnVendorStatusEnum.CANCELED.getStatus();
+        }
+        return null;
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
     public void stockReturnVendor(Long id) {
         // 鏍¢獙瀛樺湪
         MesWmReturnVendorDO returnVendor = validateReturnVendorExists(id);
@@ -140,12 +298,184 @@
             throw exception(WM_RETURN_VENDOR_NO_DETAIL);
         }
 
+        // 1.3 鏍¢獙澶勭悊鏂瑰紡锛堥��娆� / 鎹㈣揣锛�
+        if (!MesWmReturnVendorHandleTypeEnum.isValid(returnVendor.getHandleType())) {
+            throw exception(WM_RETURN_VENDOR_HANDLE_TYPE_INVALID, returnVendor.getHandleType());
+        }
+
         // 2. 閬嶅巻鎵�鏈夋槑缁嗭紝鍒涘缓搴撳瓨浜嬪姟锛堟墸鍑忓簱瀛� + 璁板綍娴佹按锛�
         createTransactionList(returnVendor, details);
 
-        // 3. 鏇存柊閫�璐у崟鐘舵��
+        // 3. 鍥炲啓閲囪喘璁㈠崟琛岀殑宸查��璐ф暟閲忥紙鎸夌墿鏂欏尮閰嶉噰璐鍗曟槑缁嗭級
+        writeBackPurchaseOrderReturnCount(returnVendor);
+
+        // 4. 鍏堢疆涓哄凡瀹屾垚锛屼繚璇侀噸澶嶈皟鐢ㄤ細琚姸鎬佹牎楠屾嫤鎴紙骞傜瓑锛�
         returnVendorMapper.updateById(new MesWmReturnVendorDO()
                 .setId(id).setStatus(MesWmReturnVendorStatusEnum.FINISHED.getStatus()));
+
+        // 5. 璐圭敤澶勭悊锛氶��娆� -> 璐熸暟鍐茬孩浠樻鍗曪紱鎹㈣揣 -> 鎹㈣揣鍒拌揣閫氱煡鍗曪紙閲嶆柊鍏ュ簱 + 閲嶆柊璐ㄦ锛�
+        if (MesWmReturnVendorHandleTypeEnum.REFUND.getType().equals(returnVendor.getHandleType())) {
+            createRedFlushPayment(id);
+        } else if (MesWmReturnVendorHandleTypeEnum.REPLACEMENT.getType().equals(returnVendor.getHandleType())) {
+            createReplacementNotice(id);
+        }
+    }
+
+    /**
+     * 鎶婇��璐ф暟閲忓閲忓洖鍐欏埌鍏宠仈閲囪喘璁㈠崟鐨勬槑缁嗚锛屽苟鍚屾璁㈠崟绾ч��璐ф暟閲�
+     */
+    private void writeBackPurchaseOrderReturnCount(MesWmReturnVendorDO returnVendor) {
+        if (returnVendor.getPurchaseOrderId() == null) {
+            return;
+        }
+        List<MesWmReturnVendorLineDO> lines = returnVendorLineService.getReturnVendorLineListByReturnId(returnVendor.getId());
+        if (CollUtil.isEmpty(lines)) {
+            return;
+        }
+        List<ErpPurchaseOrderItemRespDTO> orderItems = purchaseOrderApi
+                .getPurchaseOrderItemList(returnVendor.getPurchaseOrderId()).getCheckedData();
+        if (CollUtil.isEmpty(orderItems)) {
+            return;
+        }
+        Map<Long, Long> purchaseOrderItemIdMap = new HashMap<>();
+        orderItems.stream()
+                .filter(item -> item.getProductId() != null)
+                .forEach(item -> purchaseOrderItemIdMap.putIfAbsent(item.getProductId(), item.getId()));
+        for (MesWmReturnVendorLineDO line : lines) {
+            Long purchaseOrderItemId = purchaseOrderItemIdMap.get(line.getItemId());
+            if (purchaseOrderItemId == null || line.getQuantity() == null) {
+                continue;
+            }
+            purchaseOrderApi.updateOrderItemReturnCount(purchaseOrderItemId, line.getQuantity());
+        }
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Long createRedFlushPayment(Long id) {
+        // 1. 鏍¢獙瀛樺湪 + 宸插畬鎴� + 澶勭悊鏂瑰紡涓洪��娆�
+        MesWmReturnVendorDO returnVendor = validateReturnVendorFinished(id);
+        if (!MesWmReturnVendorHandleTypeEnum.REFUND.getType().equals(returnVendor.getHandleType())) {
+            throw exception(WM_RETURN_VENDOR_HANDLE_TYPE_INVALID, returnVendor.getHandleType());
+        }
+        // 2. 骞傜瓑锛氬凡鐢熸垚杩囧啿绾㈠崟鐩存帴杩斿洖
+        if (returnVendor.getRedFlushPaymentId() != null) {
+            return returnVendor.getRedFlushPaymentId();
+        }
+        // 3. 璁$畻閫�娆鹃噾棰濓紙鏈~鍐欐椂鎸夐噰璐崟浠� 脳 閫�璐ф暟閲忥級
+        BigDecimal refundAmount = resolveRefundAmount(returnVendor);
+
+        // 4. 鐢熸垚璐熸暟鍐茬孩浠樻鍗�
+        Long paymentId = financePaymentApi.createRedFlushPayment(new ErpFinancePaymentRedFlushCreateReqDTO()
+                .setSupplierId(returnVendor.getVendorId())
+                .setRefundAmount(refundAmount)
+                .setSourceId(returnVendor.getId())
+                .setSourceNo(returnVendor.getCode())
+                .setFinanceUserId(getCurrentUserId())
+                .setRemark("渚涘簲鍟嗛��璐у崟[" + returnVendor.getCode() + "]閫�娆惧啿绾紝鍚堝悓鍙穂" + returnVendor.getContractNo() + "]"))
+                .getCheckedData();
+
+        // 5. 鍥炲啓鍐茬孩鍗曞彿涓庢渶缁堥��娆鹃噾棰�
+        returnVendorMapper.updateById(new MesWmReturnVendorDO()
+                .setId(id).setRefundAmount(refundAmount).setRedFlushPaymentId(paymentId));
+        return paymentId;
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Long createReplacementNotice(Long id) {
+        // 1. 鏍¢獙瀛樺湪 + 宸插畬鎴� + 澶勭悊鏂瑰紡涓烘崲璐�
+        MesWmReturnVendorDO returnVendor = validateReturnVendorFinished(id);
+        if (!MesWmReturnVendorHandleTypeEnum.REPLACEMENT.getType().equals(returnVendor.getHandleType())) {
+            throw exception(WM_RETURN_VENDOR_HANDLE_TYPE_INVALID, returnVendor.getHandleType());
+        }
+        // 2. 骞傜瓑锛氬凡鐢熸垚杩囨崲璐у埌璐у崟鐩存帴杩斿洖
+        if (returnVendor.getReplacementNoticeId() != null) {
+            return returnVendor.getReplacementNoticeId();
+        }
+
+        // 3. 鐢熸垚鎹㈣揣鍒拌揣閫氱煡鍗曪紙寰呰川妫�锛岃鑷姩鍒涘缓 IQC锛�
+        Long noticeId = arrivalNoticeService.createReplacementArrivalNotice(id);
+
+        // 4. 鍥炲啓鍒拌揣閫氱煡鍗曠紪鍙�
+        returnVendorMapper.updateById(new MesWmReturnVendorDO()
+                .setId(id).setReplacementNoticeId(noticeId));
+        return noticeId;
+    }
+
+    /**
+     * 瑙f瀽閫�娆鹃噾棰濓細浼樺厛鍙栧崟鎹~鍐欏�硷紱鏈~鍐欐椂鎸夈�岄噰璐崟浠� 脳 閫�璐ф暟閲忋�嶉�愯绱姞
+     */
+    private BigDecimal resolveRefundAmount(MesWmReturnVendorDO returnVendor) {
+        if (returnVendor.getRefundAmount() != null
+                && returnVendor.getRefundAmount().compareTo(BigDecimal.ZERO) > 0) {
+            return returnVendor.getRefundAmount();
+        }
+        if (returnVendor.getPurchaseOrderId() == null) {
+            throw exception(WM_RETURN_VENDOR_REFUND_AMOUNT_REQUIRED,
+                    returnVendor.getCode(), "鏈叧鑱旈噰璐鍗�");
+        }
+        List<ErpPurchaseOrderItemRespDTO> orderItems = purchaseOrderApi
+                .getPurchaseOrderItemList(returnVendor.getPurchaseOrderId()).getCheckedData();
+        Map<Long, BigDecimal> priceMap = new HashMap<>();
+        if (CollUtil.isNotEmpty(orderItems)) {
+            orderItems.stream().filter(item -> item.getProductId() != null)
+                    .forEach(item -> priceMap.putIfAbsent(item.getProductId(), item.getProductPrice()));
+        }
+        List<MesWmReturnVendorLineDO> lines = returnVendorLineService.getReturnVendorLineListByReturnId(returnVendor.getId());
+        if (CollUtil.isEmpty(lines)) {
+            throw exception(WM_RETURN_VENDOR_NO_LINE);
+        }
+        BigDecimal total = BigDecimal.ZERO;
+        for (MesWmReturnVendorLineDO line : lines) {
+            BigDecimal price = priceMap.get(line.getItemId());
+            if (price == null) {
+                throw exception(WM_RETURN_VENDOR_REFUND_AMOUNT_REQUIRED,
+                        returnVendor.getCode(), "鐗╂枡ID=" + line.getItemId() + " 鏈尮閰嶅埌閲囪喘鍗曚环");
+            }
+            BigDecimal quantity = line.getQuantity() != null ? line.getQuantity() : BigDecimal.ZERO;
+            total = total.add(price.multiply(quantity));
+        }
+        if (total.compareTo(BigDecimal.ZERO) <= 0) {
+            throw exception(WM_RETURN_VENDOR_REFUND_AMOUNT_REQUIRED,
+                    returnVendor.getCode(), "閲囪喘鍗曚环 脳 閫�璐ф暟閲忓悎璁′负 0");
+        }
+        return total;
+    }
+
+    /**
+     * 鏍¢獙閫�璐у崟瀛樺湪涓斿凡瀹屾垚锛堣垂鐢ㄧ被鎿嶄綔浠呭湪瀹屾垚鍚庨��璐у崟涓婃墽琛岋級
+     */
+    private MesWmReturnVendorDO validateReturnVendorFinished(Long id) {
+        MesWmReturnVendorDO returnVendor = validateReturnVendorExists(id);
+        if (!MesWmReturnVendorStatusEnum.FINISHED.getStatus().equals(returnVendor.getStatus())) {
+            throw exception(WM_RETURN_VENDOR_FINISHED_REQUIRED, returnVendor.getCode(),
+                    resolveStatusName(returnVendor.getStatus()));
+        }
+        return returnVendor;
+    }
+
+    /**
+     * 鐘舵�佸�艰浆鍚嶇О锛岃В鏋愬け璐ュ洖閫�涓� ID 瀛楃涓�
+     */
+    private String resolveStatusName(Integer status) {
+        for (MesWmReturnVendorStatusEnum value : MesWmReturnVendorStatusEnum.values()) {
+            if (value.getStatus().equals(status)) {
+                return value.getName();
+            }
+        }
+        return "ID=" + status;
+    }
+
+    /**
+     * 鑾峰彇褰撳墠鐢ㄦ埛缂栧彿锛圔PM 娴佺▼鍙戣捣浜恒�佽储鍔′汉鍛橈級
+     */
+    private Long getCurrentUserId() {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        if (authentication != null && authentication.getPrincipal() instanceof Long) {
+            return (Long) authentication.getPrincipal();
+        }
+        return null;
     }
 
     private void createTransactionList(MesWmReturnVendorDO returnVendor, List<MesWmReturnVendorDetailDO> details) {
@@ -210,16 +540,50 @@
 
     /**
      * 鏍¢獙閫�璐у崟鍒涘缓/淇敼鐨勫叕鍏辨暟鎹�
+     *
+     * @return 淇敼鏃惰繑鍥炴棫鍗曟嵁锛堢敤浜庢瘮杈冮噰璐鍗曟槸鍚﹀彉鏇达級锛涘垱寤烘椂杩斿洖 null
      */
-    private void validateReturnVendorSaveData(MesWmReturnVendorSaveReqVO reqVO) {
+    private MesWmReturnVendorDO validateReturnVendorSaveData(MesWmReturnVendorSaveReqVO reqVO) {
         // 鏍¢獙瀛樺湪 + 鑽夌鐘舵�侊紙浠呬慨鏀规椂锛�
+        MesWmReturnVendorDO oldReturnVendor = null;
         if (reqVO.getId() != null) {
-            validateReturnVendorExistsAndPrepare(reqVO.getId());
+            oldReturnVendor = validateReturnVendorExistsAndPrepare(reqVO.getId());
         }
         // 鏍¢獙渚涘簲鍟嗗瓨鍦�
         srmSupplierApi.getSupplier(reqVO.getVendorId());
         // 鏍¢獙缂栫爜鍞竴
         validateCodeUnique(reqVO.getId(), reqVO.getCode());
+        return oldReturnVendor;
+    }
+
+    /**
+     * 鎶婂叧鑱旈噰璐鍗曠殑鐗╂枡鑷姩甯﹀叆閫�璐у崟琛岋紙浠呰崏绋跨姸鎬佷笖宸插叧鑱旈噰璐鍗曟椂鐢熸晥锛夈��
+     *
+     * @param id         閫�璐у崟缂栧彿
+     * @param clearFirst 鏄惁鍏堟竻绌哄凡鏈夎鍐嶅甫鍏ワ紱鏇存崲閲囪喘璁㈠崟鏃朵紶 true
+     */
+    private void autoImportLinesFromLinkedOrder(Long id, boolean clearFirst) {
+        MesWmReturnVendorDO returnVendor = returnVendorMapper.selectById(id);
+        if (returnVendor == null || returnVendor.getPurchaseOrderId() == null) {
+            return;
+        }
+        List<MesWmReturnVendorLineDO> existingLines =
+                returnVendorLineService.getReturnVendorLineListByReturnId(id);
+        if (clearFirst) {
+            if (CollUtil.isNotEmpty(existingLines)) {
+                // 绾ц仈鍒犻櫎鏃ф槑缁嗕笌琛�
+                returnVendorDetailService.deleteReturnVendorDetailByReturnId(id);
+                returnVendorLineService.deleteReturnVendorLineByReturnId(id);
+            }
+        } else if (CollUtil.isNotEmpty(existingLines)) {
+            // 宸叉湁琛屼笖鏈洿鎹㈤噰璐鍗曪細涓嶉噸澶嶅甫鍏ワ紝閬垮厤瑕嗙洊鐢ㄦ埛宸茶皟鏁寸殑鏁伴噺
+            return;
+        }
+        try {
+            importPurchaseOrderItems(id);
+        } catch (ServiceException ignore) {
+            // 閲囪喘璁㈠崟鏃犳槑缁� / 鏃犲彲閫�鐗╂枡绛変笟鍔″紓甯革細鍗曟嵁涓讳綋浠嶆甯镐繚瀛橈紝鍙湪鐗╂枡鍖哄彟琛屽鐞�
+        }
     }
 
     /**
@@ -240,4 +604,53 @@
         return returnVendorMapper.selectCountByVendorId(vendorId);
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public int importPurchaseOrderItems(Long id) {
+        // 1. 鏍¢獙閫�璐у崟瀛樺湪涓斾负鑽夌鐘舵��
+        MesWmReturnVendorDO returnVendor = validateReturnVendorExistsAndPrepare(id);
+        if (returnVendor.getPurchaseOrderId() == null) {
+            throw exception(WM_RETURN_VENDOR_PURCHASE_ORDER_REQUIRED);
+        }
+
+        // 2. 鑾峰彇閲囪喘璁㈠崟鍙婃槑缁�
+        ErpPurchaseOrderRespDTO purchaseOrder = purchaseOrderApi.getPurchaseOrder(returnVendor.getPurchaseOrderId()).getCheckedData();
+        if (purchaseOrder == null) {
+            throw exception(WM_PURCHASE_ORDER_NOT_EXISTS);
+        }
+        List<ErpPurchaseOrderItemRespDTO> items = purchaseOrderApi.getPurchaseOrderItemList(returnVendor.getPurchaseOrderId()).getCheckedData();
+        if (CollUtil.isEmpty(items)) {
+            throw exception(WM_RETURN_VENDOR_PURCHASE_ORDER_NO_ITEM);
+        }
+
+        // 3. 宸插瓨鍦ㄧ殑琛岀墿鏂欓泦鍚堬紙鎸夌墿鏂欏幓閲嶏紝閬垮厤閲嶅甯﹀叆锛�
+        Set<Long> existsItemIds = new HashSet<>();
+        List<MesWmReturnVendorLineDO> existingLines = returnVendorLineService.getReturnVendorLineListByReturnId(id);
+        if (CollUtil.isNotEmpty(existingLines)) {
+            existsItemIds.addAll(convertList(existingLines, MesWmReturnVendorLineDO::getItemId));
+        }
+
+        // 4. 閬嶅巻閲囪喘璁㈠崟鏄庣粏锛岀敓鎴愰��璐ц锛堝彲閫�鏁伴噺 = 宸插叆搴� - 宸查��璐э級
+        int importedCount = 0;
+        for (ErpPurchaseOrderItemRespDTO item : items) {
+            if (item.getProductId() == null || existsItemIds.contains(item.getProductId())) {
+                continue;
+            }
+            BigDecimal inCount = item.getInCount() != null ? item.getInCount() : BigDecimal.ZERO;
+            BigDecimal returnCount = item.getReturnCount() != null ? item.getReturnCount() : BigDecimal.ZERO;
+            BigDecimal quantity = inCount.subtract(returnCount);
+            if (quantity.compareTo(BigDecimal.ZERO) <= 0) {
+                continue;
+            }
+            MesWmReturnVendorLineSaveReqVO lineReqVO = new MesWmReturnVendorLineSaveReqVO();
+            lineReqVO.setReturnId(id);
+            lineReqVO.setItemId(item.getProductId());
+            lineReqVO.setQuantity(quantity);
+            lineReqVO.setRemark(item.getRemark());
+            returnVendorLineService.createReturnVendorLine(lineReqVO);
+            importedCount++;
+        }
+        return importedCount;
+    }
+
 }

--
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