package nju.seec.helper.service;

import nju.seec.helper.dto.LoginUser;
import nju.seec.helper.dto.NoticeDTO;
import nju.seec.helper.vo.NoticeVO;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

/**
 * @author cst
 */
public interface NoticeService {
    /**
     * 创建公告
     *
     * @param user
     * @param noticeDTO
     * @return
     */
    NoticeVO create(LoginUser user, NoticeDTO noticeDTO);

    /**
     * 修改公告
     *
     * @param user
     * @param noticeDTO
     * @return
     */
    NoticeVO modify(LoginUser user, NoticeDTO noticeDTO);

    /**
     * 取得公告
     *
     * @param user
     * @param courseId
     * @param key
     * @param pageable
     * @return
     */
    Page<NoticeVO> getNoticesByCourse(LoginUser user, Long courseId, String key, Pageable pageable);

    /**
     * 删除告示
     *
     * @param user
     * @param noticeId
     */
    void deleteNotice(LoginUser user, Long noticeId);
}