package com.whyc.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.whyc.dto.PermitGroupDto;
import com.whyc.dto.Response;
import com.whyc.mapper.GroupMapper;
import com.whyc.mapper.PermitGroupMapper;
import com.whyc.mapper.UserGroupMapper;
import com.whyc.pojo.Group;
import com.whyc.pojo.PermitGroup;
import com.whyc.pojo.UserGroup;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
public class GroupService {
    @Autowired(required = false)
    private GroupMapper mapper;

    @Autowired(required = false)
    private PermitGroupMapper permitGroupMapper;

    @Autowired(required = false)
    private UserGroupMapper userGroupMapper;

    //查询所有的权限组
    public Response getAllGroup() {
        List list=mapper.getAllGroup();
        return  new Response().setII(1,list.size()>0,list,"权限组信息");
    }
    //添加权限组
    public Response addGroup(String groupName) {
        //查看权限组名是否存在
        QueryWrapper wrapper=new QueryWrapper();
        wrapper.eq("group_name",groupName);
        List list=mapper.selectList(wrapper);
        if(list!=null&&list.size()>0){
            return new Response().set(1,false,"权限组存在");
        }else{
            //查询最大的权限组id
            int groupIdMax=mapper.selectGroupIdMax();
            Group group=new Group();
            group.setGroupId(String.valueOf(groupIdMax+1));
            group.setGroupName(groupName);
            int flag=mapper.insert(group);
            return new Response().set(1,flag>0,"返回");
        }
    }
    //删除权限组
    @Transactional
    public Response delGroup(String groupId) {
        UpdateWrapper wrapper=new UpdateWrapper();
        wrapper.eq("group_id",groupId);
        //删除权限组要先删除权限组管理的权限
        int flagP=permitGroupMapper.delete(wrapper);
        //删除权限组要先删除权限组管理的ren
        int flagU=userGroupMapper.delete(wrapper);
        //删除权限组
        int flag=mapper.delete(wrapper);
        return new Response().set(1,flag>0,"返回");
    }
    //编辑权限组名
    public Response updateGroup(String groupId,String groupName) {
        //查看权限组名是否存在
        QueryWrapper wrapperQ=new QueryWrapper();
        wrapperQ.eq("group_name",groupName);
        List list=mapper.selectList(wrapperQ);
        if(list!=null&&list.size()>0){
            return new Response().set(1,false,"权限组存在");
        }else{
            UpdateWrapper wrapperU=new UpdateWrapper();
            wrapperU.eq("group_id",groupId);
            wrapperU.set("group_name",groupName);
            int flag=mapper.update(null,wrapperU);
            return new Response().set(1,flag>0,"返回");
        }
    }
    //权限组下加用户
    @Transactional
    public Response addUserToGroup(List<UserGroup> users) {
        int flag=userGroupMapper.insertBatchSomeColumn(users);
        return new Response().set(1,flag>0,"返回");
    }
    //权限组下移除用户
    @Transactional
    public Response delUserToGroup(List<UserGroup> users) {
        UpdateWrapper wrapper=new UpdateWrapper();
        int flag=0;
        for (UserGroup userGroup: users) {
            wrapper.eq("uname",userGroup.getUname());
            wrapper.eq("group_id",userGroup.getGroupId());
            flag+=userGroupMapper.delete(wrapper);
        }
        return new Response().set(1,flag>0,"返回");
    }

    //(组合操作)权限组下加用户和移除用户
    @Transactional
    public Response opreateUserToGroup(PermitGroupDto permitGroupDto) {
        int addflag=0;
        int delflag=0;
        if(permitGroupDto.getAddusers()!=null&&permitGroupDto.getAddusers().size()>0){
            addflag=userGroupMapper.insertBatchSomeColumn(permitGroupDto.getAddusers());
        }else{
            addflag=1;
        }
        if(permitGroupDto.getDelusers()!=null&&permitGroupDto.getDelusers().size()>0){
            for (UserGroup userGroup: permitGroupDto.getDelusers()) {
                UpdateWrapper wrapper=new UpdateWrapper();
                wrapper.eq("uname",userGroup.getUname());
                wrapper.eq("group_id",userGroup.getGroupId());
                delflag+=userGroupMapper.delete(wrapper);
            }
        }else{
            delflag=1;
        }
        return new Response().set(1,addflag>0&&delflag>0,"返回{addflag:"+addflag+",delflag:"+delflag+"}");
    }
    //权限组下加权限
    @Transactional
    public Response addPermitToGroup(List<PermitGroup> permits) {
        int flag=permitGroupMapper.insertBatchSomeColumn(permits);
        return new Response().set(1,flag>0,"返回");
    }
    //权限组下移除权限
    @Transactional
    public Response delPermitToGroup(List<PermitGroup> permits) {
        UpdateWrapper wrapper=new UpdateWrapper();
        int flag=0;
        for (PermitGroup permitGroup: permits) {
            wrapper.eq("permit_id",permitGroup.getPermitId());
            wrapper.eq("group_id",permitGroup.getGroupId());
            flag+=permitGroupMapper.delete(wrapper);
        }
        return new Response().set(1,flag>0,"返回");
    }
    //(组合操作)权限组下加权限和移除权限
    @Transactional
    public Response opreatePermitToGroup(PermitGroupDto permitGroupDto) {
        int addflag=0;
        int delflag=0;
        if(permitGroupDto.getAddpermits()!=null&&permitGroupDto.getAddpermits().size()>0){
            addflag=permitGroupMapper.insertBatchSomeColumn(permitGroupDto.getAddpermits());
        }else{
            addflag=1;
        }
        if(permitGroupDto.getDelpermits()!=null&&permitGroupDto.getDelpermits().size()>0){
            for (PermitGroup permitGroup: permitGroupDto.getDelpermits()) {
                UpdateWrapper wrapper=new UpdateWrapper();
                wrapper.eq("permit_id",permitGroup.getPermitId());
                wrapper.eq("group_id",permitGroup.getGroupId());
                delflag+=permitGroupMapper.delete(wrapper);
            }
        }else{
            delflag=1;
        }

        return new Response().set(1,addflag>0&&delflag>0,"返回");
    }
}