/*
 * Copyright 2017-2020 吴学文 and java110 team.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.java110.user.cmd.org;

import com.alibaba.fastjson.JSONObject;
import com.java110.core.annotation.Java110Cmd;
import com.java110.core.annotation.Java110Transactional;
import com.java110.core.context.ICmdDataFlowContext;
import com.java110.core.event.cmd.Cmd;
import com.java110.core.event.cmd.CmdEvent;
import com.java110.dto.org.OrgDto;
import com.java110.dto.org.OrgStaffRelDto;
import com.java110.dto.user.UserDto;
import com.java110.intf.store.IOrgStaffRelV1InnerServiceSMO;
import com.java110.intf.user.IOrgV1InnerServiceSMO;
import com.java110.intf.user.IUserV1InnerServiceSMO;
import com.java110.po.org.OrgPo;
import com.java110.utils.exception.CmdException;
import com.java110.utils.util.Assert;
import com.java110.utils.util.BeanConvertUtil;
import com.java110.vo.ResultVo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.List;

/**
 * 类表述：删除组织命令类
 * 服务编码：org.deleteOrg
 * 请求路劲：/app/org.DeleteOrg
 * add by 吴学文 at 2022-02-28 17:26:28 mail: 928255095@qq.com
 * open source address: https://gitee.com/wuxw7/MicroCommunity
 * 官网：http://www.homecommunity.cn
 * 温馨提示：如果您对此文件进行修改 请不要删除原有作者及注释信息，请补充您的 修改的原因以及联系邮箱如下
 * // modify by 张三 at 2021-09-12 第10行在某种场景下存在某种bug 需要修复，注释10至20行 加入 20行至30行
 * 
 * 功能描述：该命令类用于处理删除组织的业务逻辑，包括参数验证和删除操作
 * 主要职责：
 * 1. 验证删除组织的必要条件
 * 2. 执行组织删除操作
 * 3. 返回操作结果
 */
@Java110Cmd(serviceCode = "org.deleteOrg")
public class DeleteOrgCmd extends Cmd {
    private static Logger logger = LoggerFactory.getLogger(DeleteOrgCmd.class);

    /**
     * 组织服务接口
     */
    @Autowired
    private IOrgV1InnerServiceSMO orgV1InnerServiceSMOImpl;

    /**
     * 组织员工关系服务接口
     */
    @Autowired
    private IOrgStaffRelV1InnerServiceSMO orgStaffRelV1InnerServiceSMOImpl;

    /**
     * 用户服务接口
     */
    @Autowired
    private IUserV1InnerServiceSMO userV1InnerServiceSMOImpl;

    /**
     * 验证删除组织的请求参数和业务规则
     * 
     * @param event 命令事件对象
     * @param cmdDataFlowContext 命令数据流上下文
     * @param reqJson 请求参数JSON对象
     * @throws CmdException 当验证失败时抛出异常
     */
    @Override
    public void validate(CmdEvent event, ICmdDataFlowContext cmdDataFlowContext, JSONObject reqJson) {
        // 验证必填参数
        Assert.hasKeyAndValue(reqJson, "orgId", "orgId不能为空");
        Assert.hasKeyAndValue(reqJson, "storeId", "storeId不能为空");

        // 校验组织是否存在
        OrgDto orgDto = new OrgDto();
        orgDto.setOrgId(reqJson.getString("orgId"));
        List<OrgDto> orgDtos = orgV1InnerServiceSMOImpl.queryOrgs(orgDto);

        // 验证组织存在且唯一
        Assert.listOnlyOne(orgDtos, "不存在");

        // 检查是否为一级组织，一级组织不允许删除
        if (OrgDto.ORG_LEVEL_STORE.equals(orgDtos.get(0).getOrgLevel())) {
            throw new CmdException("一级组织不能删除");
        }

        // 检查是否存在子组织
        orgDto = new OrgDto();
        orgDto.setParentOrgId(reqJson.getString("orgId"));
        List<OrgDto> subOrgDtos = orgV1InnerServiceSMOImpl.queryOrgs(orgDto);
        if (subOrgDtos != null && subOrgDtos.size() > 0) {
            throw new CmdException("存在子组织");
        }

        // 检查组织下是否存在员工关系
        OrgStaffRelDto orgStaffRelDto = new OrgStaffRelDto();
        orgStaffRelDto.setOrgId(reqJson.getString("orgId"));
        List<OrgStaffRelDto> orgStaffRelDtos = orgStaffRelV1InnerServiceSMOImpl.queryOrgStaffRels(orgStaffRelDto);
        
        // 如果存在员工关系，进一步验证员工信息
        if (orgStaffRelDtos == null || orgStaffRelDtos.size() < 1) {
            return;
        }
        
        // 查询员工详细信息
        UserDto userDto = new UserDto();
        userDto.setUserId(orgStaffRelDtos.get(0).getStaffId());
        List<UserDto> userDtos = userV1InnerServiceSMOImpl.queryUsers(userDto);
        
        // 如果员工存在，则不允许删除组织
        if (userDtos != null && userDtos.size() > 0) {
            throw new CmdException("存在员工 请先删除员工后再删除");
        }
    }

    /**
     * 执行删除组织操作
     * 
     * @param event 命令事件对象
     * @param cmdDataFlowContext 命令数据流上下文
     * @param reqJson 请求参数JSON对象
     * @throws CmdException 当删除操作失败时抛出异常
     */
    @Override
    @Java110Transactional
    public void doCmd(CmdEvent event, ICmdDataFlowContext cmdDataFlowContext, JSONObject reqJson) throws CmdException {
        // 将请求参数转换为组织持久化对象
        OrgPo orgPo = BeanConvertUtil.covertBean(reqJson, OrgPo.class);
        
        // 执行删除操作
        int flag = orgV1InnerServiceSMOImpl.deleteOrg(orgPo);

        // 检查删除操作是否成功
        if (flag < 1) {
            throw new CmdException("删除数据失败");
        }

        // 设置成功响应
        cmdDataFlowContext.setResponseEntity(ResultVo.success());
    }
}