package com.dsh.course.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.dsh.course.entity.SystemNotice;

import java.util.List;
import java.util.Map;

public interface ISystemNoticeService extends IService<SystemNotice> {


    /**
     * 添加系统消息
     * @param userType
     * @param content
     * @param userId
     * @throws Exception
     */
    void addSystemNotice(Integer userType, String content, Integer userId, Integer noticeType) throws Exception;


    /**
     * 获取未阅读数据
     * @param uid
     * @return
     * @throws Exception
     */
    int queryNoReadNoticeNum(Integer uid, Integer userType) throws Exception;

    /**
     * 获取消息列列表
     * @param type
     * @param pageNum
     * @param size
     * @param uid
     * @return
     */
    List<Map<String, Object>> queryList(Integer type, Integer pageNum, Integer size, Integer uid, Integer userType,Integer lanugage);


    /**
     * 阅读操作
     * @param id
     * @param uid
     * @throws Exception
     */
    void readSystemNotice(Integer id, Integer uid, Integer userType) throws Exception;


    /**
     * 删除公告或消息
     * @param id
     * @param uid
     * @throws Exception
     */
    void delSystemNotice(Integer id, Integer uid, Integer userType) throws Exception;


    /**
     * 清空公告或消息
     * @param uid
     * @throws Exception
     */
    void clearSystemNotice(Integer uid, Integer userType) throws Exception;
}