klp-oa/klp-wms/src/main/java/com/klp/service/impl/WmsStockServiceImpl.java

package com.klp.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.klp.common.core.page.TableDataInfo;
import com.klp.common.core.domain.PageQuery;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.klp.common.utils.StringUtils;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import com.klp.domain.bo.WmsStockBo;
import com.klp.domain.vo.WmsStockVo;
import com.klp.domain.WmsStock;
import com.klp.domain.WmsWarehouse;
import com.klp.mapper.WmsStockMapper;
import com.klp.mapper.WmsWarehouseMapper;
import com.klp.service.IWmsStockService;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.Collection;
import java.util.ArrayList;

/**
 * 库存：原材料/产品与库区/库位的存放关系Service业务层处理
 *
 * @author Joshi
 * @date 2025-07-18
 */
@RequiredArgsConstructor
@Service
public class WmsStockServiceImpl implements IWmsStockService {

    private final WmsStockMapper baseMapper;
    private final WmsWarehouseMapper warehouseMapper;

    /**
     * 查询库存：原材料/产品与库区/库位的存放关系
     */
    @Override
    public WmsStockVo queryById(Long stockId){
        return baseMapper.selectVoById(stockId);
    }

    /**
     * 查询库存：原材料/产品与库区/库位的存放关系列表
     */
    @Override
    public TableDataInfo<WmsStockVo> queryPageList(WmsStockBo bo, PageQuery pageQuery) {
        QueryWrapper<WmsStock> lqw = buildQueryWrapper(bo);
        Page<WmsStockVo> result = baseMapper.selectVoPagePlus(pageQuery.build(), lqw);
        return TableDataInfo.build(result);
    }

    /**
     * 查询库存：原材料/产品与库区/库位的存放关系列表
     */
    @Override
    public List<WmsStockVo> queryList(WmsStockBo bo) {
        QueryWrapper<WmsStock> lqw = buildQueryWrapper(bo);
        return baseMapper.selectVoList(lqw);
    }

    private QueryWrapper<WmsStock> buildQueryWrapper(WmsStockBo bo) {  // 注意：这里改用 QueryWrapper 而非 LambdaQueryWrapper
        Map<String, Object> params = bo.getParams();
        QueryWrapper<WmsStock> qw = Wrappers.query();  // 使用普通 QueryWrapper
        qw.eq("s.del_flag", 0); // 手动添加逻辑删除条件

        // 处理仓库ID查询，支持递归查询子节点
        if (bo.getWarehouseId() != null) {
            List<Long> warehouseIds = getWarehouseIdsWithChildren(bo.getWarehouseId());
            if (warehouseIds.size() == 1) {
                qw.eq("s.warehouse_id", warehouseIds.get(0));
            } else {
                qw.in("s.warehouse_id", warehouseIds);
            }
        }
        
        qw.eq(StringUtils.isNotBlank(bo.getItemType()), "s.item_type", bo.getItemType());
        qw.eq(bo.getItemId() != null, "s.item_id", bo.getItemId());
        qw.eq(bo.getQuantity() != null, "s.quantity", bo.getQuantity());
        qw.eq(StringUtils.isNotBlank(bo.getUnit()), "s.unit", bo.getUnit());
        qw.eq(StringUtils.isNotBlank(bo.getBatchNo()), "s.batch_no", bo.getBatchNo());

        return qw;
    }

    /**
     * 新增库存：原材料/产品与库区/库位的存放关系
     */
    @Override
    public Boolean insertByBo(WmsStockBo bo) {
        WmsStock add = BeanUtil.toBean(bo, WmsStock.class);
        validEntityBeforeSave(add);
        boolean flag = baseMapper.insert(add) > 0;
        if (flag) {
            bo.setStockId(add.getStockId());
        }
        return flag;
    }

    /**
     * 修改库存：原材料/产品与库区/库位的存放关系
     */
    @Override
    public Boolean updateByBo(WmsStockBo bo) {
        WmsStock update = BeanUtil.toBean(bo, WmsStock.class);
        validEntityBeforeSave(update);
        return baseMapper.updateById(update) > 0;
    }

    /**
     * 保存前的数据校验
     */
    private void validEntityBeforeSave(WmsStock entity){
        //TODO 做一些数据校验,如唯一约束
    }

    /**
     * 批量删除库存：原材料/产品与库区/库位的存放关系
     */
    @Override
    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
        if(isValid){
            //TODO 做一些业务上的校验,判断是否需要校验
        }
        return baseMapper.deleteBatchIds(ids) > 0;
    }

    @Override
    public BigDecimal getStockByItemId(Long rawMaterialId) {
        return baseMapper.getStockByItemId(rawMaterialId);
    }

    /**
     * 获取指定仓库ID及其所有子仓库ID
     * @param warehouseId 仓库ID
     * @return 包含当前仓库ID和所有子仓库ID的列表
     */
    private List<Long> getWarehouseIdsWithChildren(Long warehouseId) {
        List<Long> warehouseIds = new ArrayList<>();
        warehouseIds.add(warehouseId); // 添加当前仓库ID
        
        // 递归获取所有子仓库ID
        getChildWarehouseIds(warehouseId, warehouseIds);
        
        return warehouseIds;
    }

    /**
     * 递归获取子仓库ID
     * @param parentId 父仓库ID
     * @param warehouseIds 仓库ID列表（用于收集结果）
     */
    private void getChildWarehouseIds(Long parentId, List<Long> warehouseIds) {
        // 查询直接子仓库
        List<WmsWarehouse> children = warehouseMapper.selectList(
            Wrappers.<WmsWarehouse>lambdaQuery()
                .eq(WmsWarehouse::getParentId, parentId)
                .eq(WmsWarehouse::getDelFlag, 0)
        );
        
        // 递归处理每个子仓库
        for (WmsWarehouse child : children) {
            warehouseIds.add(child.getWarehouseId());
            getChildWarehouseIds(child.getWarehouseId(), warehouseIds);
        }
    }
}