package com.atguigu.yygu.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.yygh.model.hosp.Department;
import com.atguigu.yygh.vo.hosp.DepartmentQueryVo;
import com.atguigu.yygh.vo.hosp.DepartmentVo;
import com.atguigu.yygu.hosp.repository.DepartmentRepository;
import com.atguigu.yygu.hosp.service.DepartmentService;

import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.stereotype.Service;

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

@Service
public class DepartmentServiceImpl implements DepartmentService {
    @Autowired
    private DepartmentRepository departmentRepository;

    //上传科室接口
    @Override
    public void save(Map<String, Object> paramMap) {
        //paramMap转换成department对象
        String paramMapString = JSONObject.toJSONString(paramMap);
        Department department= JSONObject.parseObject(paramMapString,Department.class);
        //根据医院编号和科室编号进行查询
        Department departmentExist=departmentRepository.
                getDepartmentByHoscodeAndDepcode(department.getHoscode(),department.getDepcode());
        //判断
        if(departmentExist!=null){  //修改操作
            departmentExist.setUpdateTime(new Date());
            department.setIsDeleted(0);
            departmentRepository.save(departmentExist);
        }else{  //添加操作
            department.setCreateTime(new Date());   //创建时间
            department.setUpdateTime(new Date());   //修改时间
            department.setIsDeleted(0);             //是否删除标志
            departmentRepository.save(department);
        }
    }

    //查询科室接口
    @Override
    public Page<Department> findPageDepartment(int page, int limit, DepartmentQueryVo departmentQueryVo) {
        //创建Pageable对象,设置当前页和每页记录数
        //0是第一页
        Pageable pageable= PageRequest.of(page-1,limit);

        //DepartmentQueryVo转成Department
        Department department=new Department();
        BeanUtils.copyProperties(departmentQueryVo,department);
        department.setIsDeleted(0);

        //创建Example对象
        ExampleMatcher matcher=ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);

        Example<Department> example=Example.of(department,matcher);
        Page<Department> all = departmentRepository.findAll(example, pageable);
        return all;
    }

    //删除科室接口
    @Override
    public void remove(String hoscode, String depcode) {
        //根据医院编号和科室编号查询
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if(department!=null){
            //调用方法删除
            departmentRepository.deleteById(department.getId());
        }
    }

    //根据医院编号查询医院所有科室列表
    @Override
    public List<DepartmentVo> findDeptTree(String hoscode) {
       //创建list集合，用于最终数据封装
        List<DepartmentVo> result=new ArrayList<>();

        //根据医院编号，查询医院所有科室信息
        Department departmentQuery=new Department();
        departmentQuery.setHoscode(hoscode);
        Example<Department> example = Example.of(departmentQuery);
        //所有科室列表
        List<Department> departmentList = departmentRepository.findAll(example);

        //根据大科室编号bigcode分组，获取每个大科室里面下级子科室
        Map<String, List<Department>> departmentMap =
                departmentList.stream().collect(Collectors.groupingBy(Department::getBigcode));
        //遍历map集合 departmentMap
        for (Map.Entry<String,List<Department>> entry:departmentMap.entrySet()){
            //每个大科室编号
            String bigCode = entry.getKey();
            //每个大科室编号对应的全部数据
            List<Department> department1List = entry.getValue();

            //封装大科室
            DepartmentVo departmentVo1=new DepartmentVo();
            departmentVo1.setDepcode(bigCode);
            departmentVo1.setDepname(department1List.get(0).getBigname());

            //封装小科室
            List<DepartmentVo> children=new ArrayList<>();
            for(Department department:department1List){
                DepartmentVo departmentVo2=new DepartmentVo();
                departmentVo2.setDepcode(department.getDepcode());
                departmentVo2.setDepname(department.getDepname());
                //封装到list集合
                children.add(departmentVo2);
            }
            //把小科室list集合放到大科室children里面
            departmentVo1.setChildren(children);
            //放到最终的result里面
            result.add(departmentVo1);
        }
        //返回
        return result;
    }
    //根据医院编号和科室编号查询科室名称
    @Override
    public String getDepName(String hoscode, String depcode) {
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if(department!=null){
            return department.getDepname();
        }
        return null;
    }
}
