package com.designhub.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.designhub.entity.Notification;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Update;

/**
 * 通知消息Mapper接口
 */
@Mapper
public interface NotificationMapper extends BaseMapper<Notification> {

    /**
     * 批量标记为已读
     */
    @Update("UPDATE notification SET is_read = 1, read_time = NOW() WHERE receiver_id = #{receiverId} AND is_read = 0 AND deleted = 0")
    int markAllAsRead(@Param("receiverId") Long receiverId);

    /**
     * 获取未读数量
     */
    long countUnread(@Param("receiverId") Long receiverId);
}