teaching-java/src/main/java/com/teaching/backend/service/favour/SeCourseFavourService.java

package com.teaching.backend.service.favour;

import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.IService;
import com.teaching.backend.common.BaseResponse;
import com.teaching.backend.model.dto.favour.courseFavour.CourseFavourQueryRequest;
import com.teaching.backend.model.entity.courses.Courses;
import com.teaching.backend.model.entity.favour.SeCourseFavour;
import com.teaching.backend.model.vo.favour.CourseFavourDetailVO;
import org.springframework.web.bind.annotation.RequestBody;

import java.util.List;

/**
 * @Author:youhang
 * @Date:2024-05-30-20:22
 * @Description:
 */
public interface SeCourseFavourService extends IService<SeCourseFavour> {

    /**
     * 收藏/取消收藏
     *
     * @param courseId
     * @param userId
     * @return
     */
    boolean doCourseFavour(String courseId, String userId);


    /**
     * 收藏总数
     *
     * @param courseId
     * @return
     */
    long favourCount(String courseId);


    /**
     * 课程下资源和知识点的收藏总数
     *
     * @param courseId
     * @return
     */
    long courseCount(String courseId);


    /**
     * 某个用户课程列表
     *
     * @param userId
     * @return
     */
    List<String> courseList(String userId);

    /**
     * 某个用户课程列表全部信息
     *
     * @param page
     * @param queryWrapper
     * @return
     */
    public Page<CourseFavourDetailVO> listCourseFavourByPage(Page<Courses> page, Wrapper<Courses> queryWrapper);

}