public async Task DeleteSectionAsync(int sectionId)
{
// 1. get current user
var user = await GetCurrentUser();
// 2. get section
var section = await _sectionRepository.GetSectionAsync(sectionId);
if (section == null)
{
throw new NotFoundException("section not found");
}
// 2. get course by courseId
var course = await _courseRepository.GetCourseAsync(section.CourseId, false);
if (course == null)
{
throw new NotFoundException("Course not found");
}
// 3. remove section by sectionId
course.RemoveSection(user, sectionId);
// 4. remove all vimeo video in this section
var vimeoVideoIds = section.Lectures.SelectMany(l => l.Contents).Where(c => c.Video != null).Select(c => c.Video.VimeoId);
foreach (var vimeoVideoId in vimeoVideoIds)
{
var deleteVideoUrl = string.Format(_vimeoConfig.DeleteVideoUrl, vimeoVideoId);
await VimeoHelper.VideoDeleteAsync(_vimeoConfig.Token, deleteVideoUrl);
}
// 5. save db change & done
await _courseRepository.SaveAsync();
}
public async Task DeleteLectureAsync(int lectureId)
{
// 1 get user, lecture, section data
var user = await GetCurrentUser();
var lecture = await _lectureRepository.GetLectureAsync(lectureId);
if (lecture == null)
{
throw new NotFoundException("lecture not found");
}
var section = await _sectionRepository.GetSectionAsync(lecture.SectionId);
if (section == null)
{
throw new NotFoundException("section not found");
}
// 2. remove the lecture from database
section.RemoveLecture(user, lectureId);
// 3. remove all videos from vimeo
var vimeoVideoIds = lecture.Contents.Where(c => c.Video != null).Select(c => c.Video.VimeoId);
foreach (var vimeoVideoId in vimeoVideoIds)
{
var deleteVideoUrl = string.Format(_vimeoConfig.DeleteVideoUrl, vimeoVideoId);
await VimeoHelper.VideoDeleteAsync(_vimeoConfig.Token, deleteVideoUrl);
}
// 4. save database
await _sectionRepository.SaveAsync();
}
public async Task DeletePreviewVideoAsync(int courseId)
{
var user = await GetCurrentUser();
var course = await _courseRepository.GetCourseAsync(courseId, false);
if (course == null)
{
throw new NotFoundException("course not found");
}
if (course.PreviewVideo == null)
{
throw new NotFoundException("course preview video not found");
}
course.CourseUpdateValidate(user);
var deleteVideoUrl = string.Format(_vimeoConfig.DeleteVideoUrl, course.PreviewVideo.VimeoId);
await VimeoHelper.VideoDeleteAsync(_vimeoConfig.Token, deleteVideoUrl);
course.DeletePreviewVideo();
await _courseRepository.SaveAsync();
}
public async Task DeleteCourseAsync(int courseId)
{
// 1. get current user
var user = await GetCurrentUser();
// 2. get course by courseId and course attributes
var course = await _courseRepository.GetCourseAsync(courseId, false);
if (course == null)
{
throw new NotFoundException("Course not found");
}
// 3. delete all vimeo videos in this course
var vimeoVideoIds = course.Sections
.SelectMany(s => s.Lectures)
.SelectMany(l => l.Contents)
.Where(c => c.Video != null)
.Select(c => c.Video.VimeoId)
.ToList();
if (course.PreviewVideo != null)
{
vimeoVideoIds.Add(course.PreviewVideo.VimeoId);
}
foreach (var vimeoVideoId in vimeoVideoIds)
{
var deleteVideoUrl = string.Format(_vimeoConfig.DeleteVideoUrl, vimeoVideoId);
await VimeoHelper.VideoDeleteAsync(_vimeoConfig.Token, deleteVideoUrl);
}
// 4. remove vimeo album
var deleteAlbumUrl = string.Format(_vimeoConfig.DeleteAlbumUrl, course.VimeoAlbumId);
await VimeoHelper.AlbumDeleteAsync(_vimeoConfig.Token, deleteAlbumUrl);
// 5.delete the course
_courseRepository.Remove(course);
await _courseRepository.SaveAsync();
}
public async Task DeleteVideoAsync(int videoId)
{
// 1. get user & video info
var user = await GetCurrentUser();
var video = await _videoRepository.GetVideoByIdAsync(videoId);
if (video == null)
{
throw new NotFoundException("video not found");
}
// 2. check course status
video.Content.Lecture.Section.Course.CourseUpdateValidate(user);
// 3. Update Course duration
video.CleanUp();
// 4. remove video from database
_videoRepository.Remove(video.Content);
// 5. remove video from vimeo
var deleteVideoUrl = string.Format(_vimeoConfig.DeleteVideoUrl, video.VimeoId);
await VimeoHelper.VideoDeleteAsync(_vimeoConfig.Token, deleteVideoUrl);
// 6. save db
await _videoRepository.SaveAsync();
}
