using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using VOL.Business.Services;
using VOL.Model;

namespace VOL.Business.IServices
{
    public interface ICurricularService
    {
        /// <summary>
        /// 查询课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        Task<PageDataDto<CourseCategoryDto>> GetCourseCategories(CourseCategoryVo dto);

        /// <summary>
        /// 新增课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        Task AddCourseCategory(CourseCategoryDto dto);

        /// <summary>
        /// 更新课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        Task UpdateCourseCategory(CourseCategoryDto dto);

        /// <summary>
        /// 删除课程分类
        /// </summary>
        /// <param name="categoryId"></param>
        /// <returns></returns>
        Task DeleteCourseCategory(int categoryId);

        /// <summary>
        /// 课程列表
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        Task<PageDataDto<CurricularListDto>> GetCurricularList(CurricularListVo dto);

        /// <summary>
        /// 新增课程
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        Task AddCurricular(CurricularAddDto dto);

        /// <summary>
        /// 获取课程详情
        /// </summary>
        /// <param name="courseId">课程ID</param>
        /// <returns>课程详情</returns>
        Task<CurricularAddDto> GetCourseDetails(int courseId);

        /// <summary>
        /// 更新课程
        /// </summary>
        /// <param name="dto">课程信息</param>
        /// <returns>更新结果</returns>
        Task UpdateCourse(CurricularAddDto dto);

        /// <summary>
        /// 删除课程
        /// </summary>
        /// <param name="courseId">课程ID</param>
        /// <returns>删除结果</returns>
        Task DeleteCourse(int courseId);

        /// <summary>
        /// 热门课程列表查询
        /// </summary>
        /// <param name="dto">查询参数</param>
        /// <returns>热门课程列表</returns>
        Task<PageDataDto<PopularCurricularDto>> GetPopularCurricularList(PopularCurricularVo dto);

        /// <summary>
        /// 添加热门课程
        /// </summary>
        /// <param name="dto">课程ID列表</param>
        /// <returns></returns>
        Task AddPopularCurricular(AddPopularCurricularDto dto);

        /// <summary>
        /// 删除热门课程
        /// </summary>
        /// <param name="id">热门课程ID</param>
        /// <returns></returns>
        Task DeletePopularCurricular(int id);

        Task<string> UploadVideo(IFormFile file);

        /// <summary>
        /// 封面图片
        /// </summary>
        string UploadImage(IFormFile file);
    }
}