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 com.klp.domain.WmsWarehouse;
import com.klp.mapper.WmsWarehouseMapper;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import com.klp.domain.bo.WmsStockLogBo;
import com.klp.domain.vo.WmsStockLogVo;
import com.klp.domain.WmsStockLog;
import com.klp.mapper.WmsStockLogMapper;
import com.klp.service.IWmsStockLogService;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Collection;

/**
 * 库存流水Service业务层处理
 *
 * @author JR
 * @date 2025-08-11
 */
@RequiredArgsConstructor
@Service
public class WmsStockLogServiceImpl implements IWmsStockLogService {

    private final WmsStockLogMapper baseMapper;
    @Resource
    private WmsWarehouseMapper warehouseMapper;

    /**
     * 查询库存流水
     */
    @Override
    public WmsStockLogVo queryById(Long id){
        return baseMapper.selectVoById(id);
    }

    /**
     * 查询库存流水列表
     */
    @Override
    public TableDataInfo<WmsStockLogVo> queryPageList(WmsStockLogBo bo, PageQuery pageQuery) {
        QueryWrapper<WmsStockLog> lqw = buildQueryWrapperPlus(bo);
        Page<WmsStockLogVo> result = baseMapper.selectVoPagePlus(pageQuery.build(), lqw);
        return TableDataInfo.build(result);
    }

    /**
     * 查询库存流水列表
     */
    @Override
    public List<WmsStockLogVo> queryList(WmsStockLogBo bo) {
        LambdaQueryWrapper<WmsStockLog> lqw = buildQueryWrapper(bo);
        return baseMapper.selectVoList(lqw);
    }

    private QueryWrapper<WmsStockLog> buildQueryWrapperPlus(WmsStockLogBo bo) {
        QueryWrapper<WmsStockLog> lqw = Wrappers.query();
        lqw.eq("sl.del_flag", 0);
        // 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) {
                lqw.eq("sl.warehouse_id", warehouseIds.get(0));
            } else {
                lqw.in("sl.warehouse_id", warehouseIds);
            }
        }
        lqw.eq(bo.getItemId() != null, "sl.item_id", bo.getItemId());
        lqw.eq(StringUtils.isNotBlank(bo.getItemType()), "sl.item_type", bo.getItemType());
        lqw.eq(bo.getChangeQty() != null, "sl.change_qty", bo.getChangeQty());
        lqw.eq(bo.getAfterQty() != null, "sl.after_qty", bo.getAfterQty());
        lqw.eq(StringUtils.isNotBlank(bo.getChangeType()), "sl.change_type", bo.getChangeType());
        // 根据时间区间查询
        lqw.ge(bo.getStartTime() != null, "sl.change_time", bo.getStartTime());
        lqw.le(bo.getEndTime() != null, "sl.change_time", bo.getEndTime());
        return lqw;
    }

    private LambdaQueryWrapper<WmsStockLog> buildQueryWrapper(WmsStockLogBo bo) {
        Map<String, Object> params = bo.getParams();
        LambdaQueryWrapper<WmsStockLog> lqw = Wrappers.lambdaQuery();
        lqw.eq(bo.getWarehouseId() != null, WmsStockLog::getWarehouseId, bo.getWarehouseId());
        lqw.eq(bo.getItemId() != null, WmsStockLog::getItemId, bo.getItemId());
        lqw.eq(StringUtils.isNotBlank(bo.getItemType()), WmsStockLog::getItemType, bo.getItemType());
        lqw.eq(bo.getChangeQty() != null, WmsStockLog::getChangeQty, bo.getChangeQty());
        lqw.eq(bo.getAfterQty() != null, WmsStockLog::getAfterQty, bo.getAfterQty());
        lqw.eq(StringUtils.isNotBlank(bo.getChangeType()), WmsStockLog::getChangeType, bo.getChangeType());
        // 根据时间区间查询
        lqw.ge(bo.getStartTime() != null, WmsStockLog::getChangeTime, bo.getStartTime());
        lqw.le(bo.getEndTime() != null, WmsStockLog::getChangeTime, bo.getEndTime());
        return lqw;
    }

    /**
     * 新增库存流水
     */
    @Override
    public Boolean insertByBo(WmsStockLogBo bo) {
        WmsStockLog add = BeanUtil.toBean(bo, WmsStockLog.class);
        validEntityBeforeSave(add);
        boolean flag = baseMapper.insert(add) > 0;
        if (flag) {
            bo.setId(add.getId());
        }
        return flag;
    }

    /**
     * 修改库存流水
     */
    @Override
    public Boolean updateByBo(WmsStockLogBo bo) {
        WmsStockLog update = BeanUtil.toBean(bo, WmsStockLog.class);
        validEntityBeforeSave(update);
        return baseMapper.updateById(update) > 0;
    }

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

    /**
     * 批量删除库存流水
     */
    @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;
    }

    /**
     * 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);
        }
    }
}