package com.ruoyi.production.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.production.bean.dto.ProductionBomStructureDto;
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import com.ruoyi.production.bean.vo.ProductionBomStructureVo;
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import com.ruoyi.production.mapper.ProductionBomStructureMapper;
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import com.ruoyi.production.pojo.ProductionBomStructure;
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import com.ruoyi.production.service.ProductionBomStructureService;
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import lombok.RequiredArgsConstructor;
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import org.springframework.beans.BeanUtils;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.*;
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/**
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* <p>
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* 生产订单BOM产品结构 服务实现类
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* </p>
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*
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* @author 芯导软件（江苏）有限公司
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* @since 2026-04-21 03:55:52
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*/
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@Service
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@RequiredArgsConstructor()
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public class ProductionBomStructureServiceImpl extends ServiceImpl<ProductionBomStructureMapper, ProductionBomStructure> implements ProductionBomStructureService {
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private final ProductionBomStructureMapper productionBomStructureMapper;
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/**
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* 根据BOM查询并组装结构树。
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*/
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@Override
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public List<ProductionBomStructureVo> listByBomId(Long bomId) {
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// 按BOMID查询生产结构数据
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List<ProductionBomStructureVo> list = productionBomStructureMapper.listByBomId(bomId);
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Map<Long, ProductionBomStructureVo> map = new HashMap<>();
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for (ProductionBomStructureVo node : list) {
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node.setChildren(new ArrayList<>());
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map.put(node.getId(), node);
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}
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List<ProductionBomStructureVo> tree = new ArrayList<>();
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for (ProductionBomStructureVo node : list) {
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Long parentId = node.getParentId();
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if (parentId == null || parentId == 0L) {
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tree.add(node);
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continue;
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}
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ProductionBomStructureVo parent = map.get(parentId);
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if (parent != null) {
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parent.getChildren().add(node);
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}
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}
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return tree;
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public Boolean addProductionBomStructure(ProductionBomStructureDto dto) {
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// 新增生产BOM结构
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// 读取当前订单BOM主键，并把前端树结构拍平成列表
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Long orderBomId = dto.getProductionOrderBomId();
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List<ProductionBomStructureDto> flatDtoList = new ArrayList<>();
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flattenTree(dto.getChildren(), flatDtoList);
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// 查询数据库已有结构，用于后续做增删改对比
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List<ProductionBomStructure> dbList = this.list(new LambdaQueryWrapper<ProductionBomStructure>()
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.eq(ProductionBomStructure::getProductionOrderBomId, orderBomId));
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// 收集前端仍然存在的节点ID
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Set<Long> frontendIds = new HashSet<>();
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for (ProductionBomStructureDto item : flatDtoList) {
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if (item.getId() != null) {
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frontendIds.add(item.getId());
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}
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}
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// 计算需要删除的节点（数据库有、前端已删除）
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Set<Long> deleteIds = new HashSet<>();
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for (ProductionBomStructure dbItem : dbList) {
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if (!frontendIds.contains(dbItem.getId())) {
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deleteIds.add(dbItem.getId());
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}
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}
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// 先删掉前端已经移除的节点
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if (!deleteIds.isEmpty()) {
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this.removeByIds(deleteIds);
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}
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// 按是否有ID拆分为新增和更新，同时缓存新增节点的临时ID映射
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List<ProductionBomStructure> insertList = new ArrayList<>();
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List<ProductionBomStructure> updateList = new ArrayList<>();
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Map<String, ProductionBomStructure> tempEntityMap = new HashMap<>();
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for (ProductionBomStructureDto item : flatDtoList) {
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ProductionBomStructure entity = new ProductionBomStructure();
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BeanUtils.copyProperties(item, entity);
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entity.setProductionOrderBomId(orderBomId);
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if (item.getId() == null) {
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entity.setParentId(null);
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insertList.add(entity);
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tempEntityMap.put(item.getTempId(), entity);
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} else {
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updateList.add(entity);
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}
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}
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// 批量新增，拿到数据库生成的真实ID
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if (!insertList.isEmpty()) {
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this.saveBatch(insertList);
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}
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// 新增节点二次回写父ID（前端传的是临时父ID）
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List<ProductionBomStructure> parentFixList = new ArrayList<>();
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for (ProductionBomStructureDto item : flatDtoList) {
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if (item.getId() == null && item.getParentTempId() != null) {
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ProductionBomStructure child = tempEntityMap.get(item.getTempId());
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if (child == null) {
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continue;
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}
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ProductionBomStructure parent = tempEntityMap.get(item.getParentTempId());
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// 父节点是本次新增时，直接用新增后的真实ID；否则回退为前端传入父ID
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Long realParentId = parent != null ? parent.getId() : Long.valueOf(item.getParentTempId());
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child.setParentId(realParentId);
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parentFixList.add(child);
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}
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}
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// 回写新增节点的父子关系
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if (!parentFixList.isEmpty()) {
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this.updateBatchById(parentFixList);
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}
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// 批量更新已有节点
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if (!updateList.isEmpty()) {
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this.updateBatchById(updateList);
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}
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return true;
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}
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/**
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* 将树形结构拍平成列表，便于统一保存。
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*/
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private void flattenTree(List<ProductionBomStructureDto> source, List<ProductionBomStructureDto> result) {
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// 扁平化处理树
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if (source == null) {
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return;
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}
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for (ProductionBomStructureDto node : source) {
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result.add(node);
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flattenTree(node.getChildren(), result);
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}
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}
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}
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