huimv.farm.huatong/huimv-admin/src/main/java/com/huimv/admin/service/impl/BasePigpenServiceImpl.java

package com.huimv.admin.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.util.NumberUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.huimv.admin.common.utils.Result;
import com.huimv.admin.common.utils.ResultCode;
import com.huimv.admin.common.utils.ResultUtil;
import com.huimv.admin.entity.BasePigpen;
import com.huimv.admin.entity.dto.BasePigpenDto;
import com.huimv.admin.entity.vo.TreeBasePigpen;
import com.huimv.admin.mapper.BasePigpenMapper;
import com.huimv.admin.service.IBasePigpenService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author author
 * @since 2023-02-13
 */
@Service
public class BasePigpenServiceImpl extends ServiceImpl<BasePigpenMapper, BasePigpen> implements IBasePigpenService {
    @Autowired
    private BasePigpenMapper basePigpenMapper;

    @Override
    @Transactional
    public Result addPigpen(BasePigpenDto basePigpenDto) {
        BasePigpen basePigpen = new BasePigpen();
        BeanUtil.copyProperties(basePigpen,basePigpenDto);
        basePigpen.setParentId(0);
        basePigpen.setFType(1);
        int insert = basePigpenMapper.insert(basePigpen);
        Integer floorNum = basePigpenDto.getFloorNum();
        for (Integer integer = 1; integer <= floorNum; integer++) {
            BasePigpen basePigpen1 = new BasePigpen();
            basePigpen1.setFType(2);
            basePigpen1.setParentId(insert);
            basePigpen1.setBuildName(Convert.numberToChinese(integer,false));
            basePigpen1.setFarmId(basePigpen.getFarmId());
            basePigpen1.setStageCode(basePigpen.getStageCode());
        }

        return ResultUtil.addResult(insert);
    }

    @Override
    public Result list(String farmCode, String pigpenName, String stageCode) {
        QueryWrapper<BasePigpen> queryWrapper = new QueryWrapper<>();
        queryWrapper.like(StringUtils.isNotBlank(pigpenName),"pigpen_name", pigpenName);
        queryWrapper.like(StringUtils.isNotBlank(stageCode),"stage_code", stageCode);
        queryWrapper.eq(StringUtils.isNotBlank(farmCode),"farm_code", farmCode);
        //创建排序
        List<BasePigpen> basePigpens = basePigpenMapper.selectList(queryWrapper);

        //将结果List改为树
        List<TreeBasePigpen> treeBasePigpens = parseBizBaseArea(basePigpens);
        return new Result(ResultCode.SUCCESS,treeBasePigpens);
    }


    /**
     * 查询结果 转换成树形结构
     * @param bizBaseAreas 原始数据
     * @return 树
     */
    private List<TreeBasePigpen> parseBizBaseArea(List<BasePigpen> bizBaseAreas){
        //构建需要展示的树形节点结构
        Map<String, TreeBasePigpen> nodeMap = bizBaseAreas.stream().map(basePigpen -> {
            TreeBasePigpen  baseVo = new TreeBasePigpen();
            baseVo.setId(basePigpen.getId()+"");
            baseVo.setFarmCode(basePigpen.getFarmId());
            baseVo.setParentId(basePigpen.getParentId());
            baseVo.setSort(basePigpen.getSort());
            baseVo.setPigpenName(basePigpen.getBuildName());
            baseVo.setType(basePigpen.getFType());
            baseVo.setChildNode(new ArrayList<>());
            return baseVo;
        }).collect(Collectors.toMap(TreeBasePigpen::getId, b -> b,(k1, k2)->k1));
        //创建数组存父亲节点
        ArrayList<TreeBasePigpen> roots = new ArrayList<>();
        //构建树形
        nodeMap.values().forEach(item->{
            String parentCode = item.getParentId()+"";
            if (nodeMap.get(parentCode) == null){
                //父节点为空，说明当前节点就已经是父节点了 将该节点存起来
                roots.add(item);
            }else {
                //父节点 不为空，说明有父节点，拿到该节点的父节点的孩子节点（就是我自己),将该节点存起来
                nodeMap.get(parentCode).getChildNode().add(item);
            }
        });
        return roots;
    }
}