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package cn.iocoder.yudao.module.mes.service.wm.salesnotice;
 
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjUtil;
import cn.hutool.core.util.StrUtil;
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.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
import cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum;
import cn.iocoder.yudao.module.bpm.service.definition.BpmCategoryService;
import cn.iocoder.yudao.module.bpm.service.definition.BpmProcessDefinitionService;
import cn.iocoder.yudao.module.mes.controller.admin.wm.salesnotice.vo.MesWmSalesNoticePageReqVO;
import cn.iocoder.yudao.module.mes.controller.admin.wm.salesnotice.vo.MesWmSalesNoticeSaveReqVO;
import cn.iocoder.yudao.module.mes.dal.dataobject.wm.productsales.MesWmProductSalesDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.wm.productsales.MesWmProductSalesLineDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.wm.salesnotice.MesWmSalesNoticeDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.wm.salesnotice.MesWmSalesNoticeLineDO;
import cn.iocoder.yudao.module.mes.dal.mysql.wm.productsales.MesWmProductSalesMapper;
import cn.iocoder.yudao.module.mes.dal.mysql.wm.productsales.MesWmProductSalesLineMapper;
import cn.iocoder.yudao.module.mes.dal.mysql.wm.salesnotice.MesWmSalesNoticeMapper;
import cn.iocoder.yudao.module.mes.dal.mysql.wm.salesnotice.MesWmSalesNoticeLineMapper;
import cn.iocoder.yudao.module.mes.enums.wm.MesWmOutStatusEnum;
import cn.iocoder.yudao.module.mes.enums.wm.MesWmSalesNoticeStatusEnum;
import cn.iocoder.yudao.module.mes.enums.wm.MesWmProductSalesStatusEnum;
import cn.iocoder.yudao.module.mes.service.md.autocode.MesMdAutoCodeRecordService;
import cn.iocoder.yudao.module.crm.api.customer.CrmCustomerApi;
import cn.iocoder.yudao.module.erp.api.sale.ErpSaleOrderApi;
import cn.iocoder.yudao.module.erp.api.sale.dto.ErpSaleOrderItemRespDTO;
import cn.iocoder.yudao.module.erp.api.sale.dto.ErpSaleOrderRespDTO;
import cn.iocoder.yudao.module.erp.api.sale.enums.ErpSaleOrderOutStatusEnum;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.flowable.engine.repository.ProcessDefinition;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;
 
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
 
import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.*;
import static cn.iocoder.yudao.module.mes.enums.wm.MesWmSalesNoticeStatusEnum.*;
 
/**
 * MES 发货通知单 Service 实现类
 */
@Service
@Validated
@Slf4j
public class MesWmSalesNoticeServiceImpl implements MesWmSalesNoticeService {
 
    /**
     * BPM 发货审批分类编码(审批人默认为物流)
     */
    private static final String SALES_DELIVERY_APPROVE_CATEGORY_CODE = "sales_delivery_approve";
 
    @Resource
    private MesWmSalesNoticeMapper salesNoticeMapper;
 
    @Resource
    private MesWmSalesNoticeLineService salesNoticeLineService;
    @Resource
    private CrmCustomerApi customerApi;
 
    @Resource
    private ErpSaleOrderApi saleOrderApi;
    @Resource
    private MesMdAutoCodeRecordService autoCodeRecordService;
 
    @Resource
    private MesWmProductSalesMapper productSalesMapper;
    @Resource
    private MesWmProductSalesLineMapper productSalesLineMapper;
    @Resource
    private MesWmSalesNoticeLineMapper salesNoticeLineMapper;
 
    @Resource
    private BpmProcessInstanceApi bpmProcessInstanceApi;
    @Resource
    private BpmCategoryService bpmCategoryService;
    @Resource
    private BpmProcessDefinitionService bpmProcessDefinitionService;
 
    @Override
    public Long createSalesNotice(MesWmSalesNoticeSaveReqVO createReqVO) {
        // 校验数据
        validateSalesNoticeSave(createReqVO);
 
        // 插入
        MesWmSalesNoticeDO notice = BeanUtils.toBean(createReqVO, MesWmSalesNoticeDO.class);
        notice.setStatus(PREPARE.getStatus()); // 草稿状态
        notice.setExpressFee(notice.getExpressFee() == null ? BigDecimal.ZERO : notice.getExpressFee());
        notice.setInvoiceStatus(notice.getInvoiceStatus() == null ? 0 : notice.getInvoiceStatus());
        salesNoticeMapper.insert(notice);
        return notice.getId();
    }
 
    @Override
    public void updateSalesNotice(MesWmSalesNoticeSaveReqVO updateReqVO) {
        // 校验存在 + 草稿状态
        validateSalesNoticeExistsAndDraft(updateReqVO.getId());
        // 校验数据
        validateSalesNoticeSave(updateReqVO);
 
        // 更新
        MesWmSalesNoticeDO updateObj = BeanUtils.toBean(updateReqVO, MesWmSalesNoticeDO.class);
        salesNoticeMapper.updateById(updateObj);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteSalesNotice(Long id) {
        // 校验存在 + 草稿状态
        validateSalesNoticeExistsAndDraft(id);
 
        // 级联删除行
        salesNoticeLineService.deleteSalesNoticeLineByNoticeId(id);
        // 删除
        salesNoticeMapper.deleteById(id);
    }
 
    @Override
    public MesWmSalesNoticeDO getSalesNotice(Long id) {
        return salesNoticeMapper.selectById(id);
    }
 
    @Override
    public PageResult<MesWmSalesNoticeDO> getSalesNoticePage(MesWmSalesNoticePageReqVO pageReqVO) {
        return salesNoticeMapper.selectPage(pageReqVO, (List<Long>) null);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void submitSalesNotice(Long id, String processDefinitionKey, Long userId) {
        // 1.1 校验存在 + 草稿状态
        MesWmSalesNoticeDO notice = validateSalesNoticeExists(id);
        if (ObjUtil.notEqual(PREPARE.getStatus(), notice.getStatus())) {
            throw exception(WM_SALES_NOTICE_STATUS_NOT_ALLOW_SUBMIT);
        }
        // 1.2 检查是否有行项目
        List<MesWmSalesNoticeLineDO> lines = salesNoticeLineService.getSalesNoticeLineListByNoticeId(id);
        if (CollUtil.isEmpty(lines)) {
            throw exception(WM_SALES_NOTICE_LINE_EMPTY);
        }
 
        // 2. 全局免审批:直接进入待出库
        if (bpmProcessInstanceApi.isGlobalAutoApprove()) {
            salesNoticeMapper.updateById(new MesWmSalesNoticeDO()
                    .setId(id).setProcessInstanceId("").setStatus(APPROVED.getStatus()));
            reserveSaleOrderOutStatus(notice);
            return;
        }
 
        // 3. 必须选择流程,且分类下存在激活的流程定义
        if (StrUtil.isBlank(processDefinitionKey)) {
            throw exception(WM_SALES_NOTICE_SUBMIT_PROCESS_KEY_REQUIRED);
        }
        validateSalesNoticeApproveCategoryAndProcessDefinition();
        ProcessDefinition processDefinition = bpmProcessDefinitionService.getActiveProcessDefinition(processDefinitionKey);
        if (processDefinition == null || bpmProcessDefinitionService
                .getProcessDefinitionInfoListByCategory(SALES_DELIVERY_APPROVE_CATEGORY_CODE).stream()
                .noneMatch(info -> Objects.equals(info.getProcessDefinitionId(), processDefinition.getId()))) {
            throw exception(WM_SALES_NOTICE_BPM_PROCESS_DEFINITION_NOT_EXISTS);
        }
 
        // 4. 创建审批流程实例,进入审批中
        String processInstanceId = bpmProcessInstanceApi.createProcessInstance(userId, new BpmProcessInstanceCreateReqDTO()
                .setProcessDefinitionKey(processDefinitionKey).setBusinessKey(String.valueOf(id))
                .setVariables(Map.of("businessNo", notice.getCode())));
        salesNoticeMapper.updateById(new MesWmSalesNoticeDO()
                .setId(id).setProcessInstanceId(processInstanceId).setStatus(APPROVING.getStatus()));
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateSalesNoticeAuditStatus(Long id, Integer bpmResult) {
        MesWmSalesNoticeDO notice = validateSalesNoticeExists(id);
        if (ObjUtil.notEqual(APPROVING.getStatus(), notice.getStatus())) {
            MesWmSalesNoticeStatusEnum current = MesWmSalesNoticeStatusEnum.getByStatus(notice.getStatus());
            log.error("[updateSalesNoticeAuditStatus][发货单({}) 不处于审批中,当前状态({}),无法更新审批结果({})]",
                    id, current != null ? current.getName() : notice.getStatus(), bpmResult);
            throw exception(WM_SALES_NOTICE_UPDATE_AUDIT_STATUS_FAIL_NOT_APPROVING, notice.getCode(),
                    current != null ? current.getName() : String.valueOf(notice.getStatus()));
        }
        if (ObjUtil.equal(bpmResult, BpmProcessInstanceStatusEnum.APPROVE.getStatus())) {
            // 审批通过:进入待出库,并回写销售订单出库状态
            salesNoticeMapper.updateById(new MesWmSalesNoticeDO().setId(id).setStatus(APPROVED.getStatus()));
            reserveSaleOrderOutStatus(notice);
        } else if (ObjUtil.equal(bpmResult, BpmProcessInstanceStatusEnum.REJECT.getStatus())
                || ObjUtil.equal(bpmResult, BpmProcessInstanceStatusEnum.CANCEL.getStatus())) {
            // 驳回/取消:退回草稿,允许修改后重新提交
            salesNoticeMapper.updateById(new MesWmSalesNoticeDO().setId(id).setStatus(PREPARE.getStatus()));
        } else {
            log.warn("[updateSalesNoticeAuditStatus][发货单({}) 收到未知审批结果({}),忽略]", id, bpmResult);
        }
    }
 
    @Override
    public List<Map<String, Object>> getSalesNoticeApproveProcessDefinitionList() {
        validateSalesNoticeApproveCategoryAndProcessDefinition();
        List<BpmProcessDefinitionInfoDO> definitionInfoList = bpmProcessDefinitionService
                .getProcessDefinitionInfoListByCategory(SALES_DELIVERY_APPROVE_CATEGORY_CODE);
        Set<String> processDefinitionIds = cn.iocoder.yudao.framework.common.util.collection.CollectionUtils
                .convertSet(definitionInfoList, BpmProcessDefinitionInfoDO::getProcessDefinitionId);
        List<ProcessDefinition> processDefinitions = bpmProcessDefinitionService.getProcessDefinitionList(processDefinitionIds);
        Map<String, ProcessDefinition> latestVersionMap = new HashMap<>();
        for (ProcessDefinition pd : processDefinitions) {
            if (pd.isSuspended()) {
                continue;
            }
            ProcessDefinition existing = latestVersionMap.get(pd.getKey());
            if (existing == null || pd.getVersion() > existing.getVersion()) {
                latestVersionMap.put(pd.getKey(), pd);
            }
        }
        List<Map<String, Object>> result = new ArrayList<>();
        for (ProcessDefinition pd : latestVersionMap.values()) {
            Map<String, Object> item = new HashMap<>();
            item.put("id", pd.getId());
            item.put("key", pd.getKey());
            item.put("name", pd.getName());
            item.put("version", pd.getVersion());
            result.add(item);
        }
        return result;
    }
 
    private void reserveSaleOrderOutStatus(MesWmSalesNoticeDO notice) {
        if (notice.getSaleOrderId() != null) {
            saleOrderApi.updateOrderOutStatusTo(notice.getSaleOrderId(),
                    ErpSaleOrderOutStatusEnum.RESERVED.getStatus());
        }
    }
 
    private void validateSalesNoticeApproveCategoryAndProcessDefinition() {
        List<String> codes = Collections.singletonList(SALES_DELIVERY_APPROVE_CATEGORY_CODE);
        Map<String, ?> categoryMap = bpmCategoryService.getCategoryMap(codes);
        if (!categoryMap.containsKey(SALES_DELIVERY_APPROVE_CATEGORY_CODE)) {
            throw exception(WM_SALES_NOTICE_BPM_PROCESS_DEFINITION_NOT_EXISTS);
        }
        List<BpmProcessDefinitionInfoDO> definitionInfoList = bpmProcessDefinitionService
                .getProcessDefinitionInfoListByCategory(SALES_DELIVERY_APPROVE_CATEGORY_CODE);
        if (CollUtil.isEmpty(definitionInfoList)) {
            throw exception(WM_SALES_NOTICE_BPM_PROCESS_DEFINITION_NOT_EXISTS);
        }
        Set<String> processDefinitionIds = cn.iocoder.yudao.framework.common.util.collection.CollectionUtils
                .convertSet(definitionInfoList, BpmProcessDefinitionInfoDO::getProcessDefinitionId);
        List<ProcessDefinition> processDefinitions = bpmProcessDefinitionService.getProcessDefinitionList(processDefinitionIds);
        if (processDefinitions.stream().noneMatch(pd -> !pd.isSuspended())) {
            throw exception(WM_SALES_NOTICE_BPM_PROCESS_DEFINITION_NOT_EXISTS);
        }
    }
 
    @Override
    public List<MesWmSalesNoticeDO> getSalesNoticeList(Collection<Long> ids) {
        if (CollUtil.isEmpty(ids)) {
            return Collections.emptyList();
        }
        return salesNoticeMapper.selectByIds(ids);
    }
 
    @Override
    public MesWmSalesNoticeDO validateSalesNoticeExists(Long id) {
        MesWmSalesNoticeDO notice = salesNoticeMapper.selectById(id);
        if (notice == null) {
            throw exception(WM_SALES_NOTICE_NOT_EXISTS);
        }
        return notice;
    }
 
    /**
     * 校验发货通知单存在且为草稿状态
     */
    private MesWmSalesNoticeDO validateSalesNoticeExistsAndDraft(Long id) {
        MesWmSalesNoticeDO notice = validateSalesNoticeExists(id);
        if (ObjUtil.notEqual(PREPARE.getStatus(), notice.getStatus())) {
            throw exception(WM_SALES_NOTICE_STATUS_NOT_ALLOW_DELETE);
        }
        return notice;
    }
 
    private void validateSalesNoticeSave(MesWmSalesNoticeSaveReqVO saveReqVO) {
        // 校验编码唯一
        validateNoticeCodeUnique(saveReqVO.getId(), saveReqVO.getCode());
        // 校验客户存在
        if (saveReqVO.getClientId() != null) {
            customerApi.validateCustomer(saveReqVO.getClientId());
        }
    }
 
    private void validateNoticeCodeUnique(Long id, String code) {
        MesWmSalesNoticeDO notice = salesNoticeMapper.selectByCode(code);
        if (notice == null) {
            return;
        }
        if (ObjUtil.notEqual(id, notice.getId())) {
            throw exception(WM_SALES_NOTICE_CODE_DUPLICATE);
        }
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long generateSalesNoticeFromSaleOrder(Long saleOrderId) {
        // 1. 校验是否已生成过发货通知单(防止重复生成)
        MesWmSalesNoticeDO existNotice = salesNoticeMapper.selectBySaleOrderId(saleOrderId);
        if (existNotice != null) {
            throw exception(WM_SALES_NOTICE_ALREADY_EXISTS);
        }
 
        // 2. 获取销售订单信息
        ErpSaleOrderRespDTO saleOrder = saleOrderApi.getSaleOrder(saleOrderId).getCheckedData();
        if (saleOrder == null) {
            throw exception(WM_SALES_NOTICE_SALE_ORDER_NOT_EXISTS);
        }
 
        // 3. 获取销售订单明细
        List<ErpSaleOrderItemRespDTO> saleOrderItems = saleOrderApi.getSaleOrderItemList(saleOrderId).getCheckedData();
        if (CollUtil.isEmpty(saleOrderItems)) {
            throw exception(WM_SALES_NOTICE_SALE_ORDER_ITEM_EMPTY);
        }
 
        // 4. 生成发货通知单编码
        String code = autoCodeRecordService.generateAutoCode("SALESNOTICE_CODE", null);
 
        // 5. 创建发货通知单主表
        MesWmSalesNoticeDO notice = new MesWmSalesNoticeDO();
        notice.setCode(code);
        notice.setName("销售订单[" + saleOrder.getNo() + "]发货通知");
        notice.setClientId(saleOrder.getCustomerId());
        notice.setSaleOrderId(saleOrderId);
        notice.setSaleOrderCode(saleOrder.getNo());
        notice.setSalesDate(java.time.LocalDateTime.now());
        notice.setStatus(PREPARE.getStatus());
        salesNoticeMapper.insert(notice);
 
        // 6. 遍历明细创建发货通知单行
        for (ErpSaleOrderItemRespDTO saleOrderItem : saleOrderItems) {
            MesWmSalesNoticeLineDO line = new MesWmSalesNoticeLineDO();
            line.setNoticeId(notice.getId());
            line.setSaleOrderItemId(saleOrderItem.getId());
            line.setItemId(saleOrderItem.getProductId());
            line.setQuantity(saleOrderItem.getCount());
            salesNoticeLineService.createSalesNoticeLine(line);
        }
 
        return notice.getId();
    }
 
    @Override
    public void finishSalesNotice(Long id) {
        // 已废弃,保留兼容性
        updateSalesNoticeOutStatus(id);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateSalesNoticeLineOutCount(Long noticeLineId, BigDecimal outCount) {
        if (noticeLineId == null || outCount == null) {
            return;
        }
        // 1. 获取发货通知单行
        MesWmSalesNoticeLineDO line = salesNoticeLineMapper.selectById(noticeLineId);
        if (line == null) {
            return;
        }
        // 2. 累加出库数量
        BigDecimal newOutCount = (line.getOutCount() != null ? line.getOutCount() : BigDecimal.ZERO).add(outCount);
        // 3. 更新行
        salesNoticeLineMapper.updateById(new MesWmSalesNoticeLineDO()
                .setId(noticeLineId)
                .setOutCount(newOutCount));
        // 4. 更新主单出库状态
        updateSalesNoticeOutStatus(line.getNoticeId());
    }
 
    @Override
    public void updateSalesNoticeOutStatus(Long noticeId) {
        if (noticeId == null) {
            return;
        }
        // 1. 获取发货通知单
        MesWmSalesNoticeDO notice = salesNoticeMapper.selectById(noticeId);
        if (notice == null) {
            return;
        }
        // 2. 获取发货通知单行
        List<MesWmSalesNoticeLineDO> lines = salesNoticeLineMapper.selectListByNoticeId(noticeId);
        if (CollUtil.isEmpty(lines)) {
            return;
        }
        // 3. 计算出库状态
        int outStatus = calculateOutStatus(lines);
        // 4. 更新出库状态
        salesNoticeMapper.updateById(new MesWmSalesNoticeDO()
                .setId(noticeId)
                .setOutStatus(outStatus));
        // 5. 如果全部出库,更新单据状态为已完成
        if (outStatus == MesWmOutStatusEnum.ALL_OUT.getStatus()) {
            salesNoticeMapper.updateById(new MesWmSalesNoticeDO()
                    .setId(noticeId)
                    .setStatus(FINISHED.getStatus()));
        }
    }
 
    /**
     * 计算出库状态
     */
    private int calculateOutStatus(List<MesWmSalesNoticeLineDO> lines) {
        boolean allOut = true;
        boolean anyOut = false;
 
        for (MesWmSalesNoticeLineDO line : lines) {
            BigDecimal quantity = line.getQuantity() != null ? line.getQuantity() : BigDecimal.ZERO;
            BigDecimal outCount = line.getOutCount() != null ? line.getOutCount() : BigDecimal.ZERO;
 
            if (outCount.compareTo(BigDecimal.ZERO) > 0) {
                anyOut = true;
            }
            if (outCount.compareTo(quantity) < 0) {
                allOut = false;
            }
        }
 
        if (allOut) {
            return MesWmOutStatusEnum.ALL_OUT.getStatus();
        } else if (anyOut) {
            return MesWmOutStatusEnum.PART_OUT.getStatus();
        } else {
            return MesWmOutStatusEnum.NOT_OUT.getStatus();
        }
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long generateProductSalesFromNotice(Long noticeId) {
        // 1. 校验发货通知单存在且为待出库状态
        MesWmSalesNoticeDO notice = validateSalesNoticeExists(noticeId);
        if (ObjUtil.notEqual(APPROVED.getStatus(), notice.getStatus())) {
            throw exception(WM_SALES_NOTICE_STATUS_NOT_APPROVED);
        }
 
        // 2. 校验是否已生成过销售出库单(防止重复生成)
        if (productSalesMapper.selectByNoticeId(noticeId) != null) {
            throw exception(WM_PRODUCT_SALES_ALREADY_EXISTS);
        }
 
        // 3. 获取发货通知单行
        List<MesWmSalesNoticeLineDO> noticeLines = salesNoticeLineService.getSalesNoticeLineListByNoticeId(noticeId);
        if (CollUtil.isEmpty(noticeLines)) {
            throw exception(WM_SALES_NOTICE_LINE_EMPTY);
        }
 
        // 4. 生成销售出库单编码
        String code = autoCodeRecordService.generateAutoCode("WM_PRODUCT_SALES_CODE", null);
 
        // 5. 创建销售出库单主表
        MesWmProductSalesDO productSales = new MesWmProductSalesDO();
        productSales.setCode(code);
        productSales.setName("发货通知单[" + notice.getCode() + "]出库");
        productSales.setClientId(notice.getClientId());
        productSales.setSaleOrderId(notice.getSaleOrderId());
        productSales.setSalesOrderCode(notice.getSaleOrderCode());
        productSales.setNoticeId(noticeId);
        productSales.setSalesDate(notice.getSalesDate());
        // 收货信息从发货通知单带入
        productSales.setContactName(notice.getRecipientName());
        productSales.setContactTelephone(notice.getRecipientTelephone());
        productSales.setContactAddress(notice.getRecipientAddress());
        productSales.setStatus(MesWmProductSalesStatusEnum.PREPARE.getStatus());
        productSalesMapper.insert(productSales);
 
        // 6. 遍历发货通知单行创建销售出库单行
        for (MesWmSalesNoticeLineDO noticeLine : noticeLines) {
            MesWmProductSalesLineDO salesLine = new MesWmProductSalesLineDO();
            salesLine.setSalesId(productSales.getId());
            salesLine.setSaleOrderItemId(noticeLine.getSaleOrderItemId());
            salesLine.setNoticeLineId(noticeLine.getId());
            salesLine.setItemId(noticeLine.getItemId());
            salesLine.setQuantity(noticeLine.getQuantity());
            salesLine.setBatchId(noticeLine.getBatchId());
            salesLine.setBatchCode(noticeLine.getBatchCode());
            salesLine.setOqcCheckFlag(noticeLine.getOqcCheckFlag());
            productSalesLineMapper.insert(salesLine);
        }
 
        return productSales.getId();
    }
 
}