package nju.seec.helper.service;

import nju.seec.helper.dto.LoginUser;
import nju.seec.helper.dto.SlideDTO;
import nju.seec.helper.dto.modify.ModifySlideDTO;
import nju.seec.helper.dto.modify.ModifySlideStateDTO;
import nju.seec.helper.vo.SlideVO;
import org.springframework.data.domain.Pageable;

import java.util.List;

/**
 * @author cst
 */
public interface SlideService {
    /**
     * 创建幻灯片
     *
     * @param teacher
     * @param slideDTO
     * @return
     */
    SlideVO createSlide(LoginUser teacher, SlideDTO slideDTO);

    /**
     * 修改幻灯片
     *
     * @param user
     * @param modifySlideDTO
     * @return
     */
    SlideVO modifySlide(LoginUser user, ModifySlideDTO modifySlideDTO);

    /**
     * 修改幻灯片状态
     *
     * @param user
     * @param modifySlideStateDTO
     */
    void modifySlideState(LoginUser user, ModifySlideStateDTO modifySlideStateDTO);

    /**
     * 删除幻灯片（伪删除）
     *
     * @param user
     * @param slideId
     */
    void removeSlide(LoginUser user, Integer slideId);

    /**
     * 教师获取幻灯片
     *
     * @param teacher
     * @param key
     * @param pageable
     * @return
     */
    List<SlideVO> teacherGetSlides(LoginUser teacher, String key, Pageable pageable);

    /**
     * 教师基于课程获取幻灯片
     *
     * @param teacher
     * @param courseId
     * @param key
     * @param pageable
     * @return
     */
    List<SlideVO> teacherGetSlidesByCourse(LoginUser teacher, Integer courseId, String key, Pageable pageable);

    /**
     * 教师获取幻灯片
     *
     * @param student
     * @param courseId
     * @param key
     * @param pageable
     * @return
     */
    List<SlideVO> studentGetSlidesByCourse(LoginUser student, Integer courseId, String key, Pageable pageable);

    /**
     * 获取幻灯片链接
     *
     * @param user
     * @param slideId
     * @return
     */
    String getSlideUrl(LoginUser user, Integer slideId);
}