private static async void AllUnhandledExceptions(object sender, UnhandledExceptionEventArgs e)
{
var ex = (Exception)e.ExceptionObject;
Log.Error(ex, "Unknown error occured. Running app again");
Console.WriteLine();
TUI.ShowError("Unknown error occured - " + ex.Message);
TUI.ShowError("Restarting...");
await RunApp();
}
public static void DownloadCourse(Course course, DirectoryInfo courseRootDirectory)
{
try
{
int exerciseFilesCount = course.ExerciseFiles is null ? 0 : course.ExerciseFiles.Count();
using var pbarCourse = new ProgressBar(course.Chapters.ToList().Count + +exerciseFilesCount, "Downloading Course : " + course.Title, optionsCourse);
var courseDirectory = courseRootDirectory.CreateSubdirectory(ToSafeFileName(course.Title));
for (int i = 0; i < course.Chapters.Count(); i++)
{
var chapter = course.Chapters[i];
var chapterDirectory = courseDirectory.CreateSubdirectory($"[{i + 1}] {ToSafeFileName(chapter.Title)}");
using var pbarChapter = pbarCourse.Spawn(chapter.Videos.ToList().Count, $"Downloading Chapter {i + 1} : {chapter.Title}", optionsChapter);
for (int j = 0; j < chapter.Videos.Count(); j++)
{
var video = chapter.Videos[j];
currentVideo = video.Title;
currentIndex = j + 1;
DownloadVideo(chapterDirectory, pbarChapter, video);
pbarChapter.Tick();
}
pbarChapter.Message = $"Chapter {i + 1} : {chapter.Title} chapter has been downloaded successfully";
pbarCourse.Tick();
}
if (course.ExerciseFiles != null && course.ExerciseFiles.Count() > 0)
{
foreach (var exerciseFile in course.ExerciseFiles)
{
DownloadExerciseFile(courseDirectory, pbarCourse, exerciseFile);
pbarCourse.Tick();
}
}
pbarCourse.Message = $"{course.Title} course has been downloaded successfully";
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Course downloaded successfully :)");
Console.ResetColor();
Log.Information("Course downloaded successfully");
}
catch (Exception ex)
{
TUI.ShowError("An error occured while downloading the course");
TUI.ShowError("Error details : " + ex.Message);
TUI.ShowError("Trying again...");
Log.Error(ex, "Error while Downloading");
DownloadCourse(course, courseRootDirectory);
}
}
private static async Task RunWithoutConfig()
{
string courseUrl = TUI.GetCourseUrl();
string token = TUI.GetLoginToken();
var courseRootDirectory = TUI.GetPath();
var selectedQuality = TUI.GetQuality();
Config config = new Config
{
AuthenticationToken = token,
Quality = selectedQuality,
CourseDirectory = courseRootDirectory
};
await config.Save();
Console.WriteLine(TUI.CONTINUEGLYPH + "Saved entries to config file");
Log.Information("Saved entries to config file. Intializing Course Extractor");
await RunExtractorAndDownloader(config, courseUrl);
}
private static async Task RunExtractorAndDownloader(Config config, string courseUrl)
{
Console.WriteLine(TUI.CONTINUEGLYPH + "Extracting Course Data. This might take some time...");
var extractor = new Extractor(courseUrl, config.Quality, config.AuthenticationToken);
if (!extractor.HasValidUrl())
{
TUI.ShowError("The course url you provided is not a recognized valid Linkedin Learning link");
await RunWithConfig(config);
return;
}
if (!await extractor.HasValidToken())
{
TUI.ShowError("The token you provided is not valid");
await RunWithoutConfig();
return;
}
Course course;
try
{
using var pbarExtractor = new ProgressBar(10000, "Extracting Course Links - This will take some time", optionPbarExtractor);
course = await extractor.GetCourse(pbarExtractor.AsProgress <float>());
}
catch (Exception ex)
{
TUI.ShowError(ex.Message);
Log.Error(ex, ex.Message);
await RunWithoutConfig();
return;
}
Console.WriteLine(TUI.ENDGLYPH + "Course Extracted Successfully");
Log.Information("Course Extracted. Downloading...");
Console.WriteLine();
CourseDownloader.DownloadCourse(course, config.CourseDirectory);
}
private static async Task RunApp()
{
if (File.Exists("./Config.json"))
{
Console.WriteLine(TUI.STARTGLYPH + "Found a Config file");
try
{
Config config = Config.FromJson(File.ReadAllText("./Config.json"));
Console.WriteLine(TUI.CONTINUEGLYPH + "Data in config file : ");
Console.WriteLine(TUI.CONTINUEGLYPH + "Quality to download in : " + config.Quality);
Console.WriteLine(TUI.CONTINUEGLYPH + "Course Directory/Path : " + config.CourseDirectory);
Console.WriteLine(TUI.CONTINUEGLYPH + "Authentication Token : " + config.AuthenticationToken);
if (TUI.UseConfig())
{
await RunWithConfig(config);
}
else
{
Console.WriteLine(TUI.CONTINUEGLYPH + "The data you enter will be saved in a new Config file");
await RunWithoutConfig();
}
}
catch (JsonSerializationException)
{
TUI.ShowError("Config file is corrupt");
Console.WriteLine(TUI.CONTINUEGLYPH + "The data you enter will be saved in a new Config file");
await RunWithoutConfig();
}
}
else
{
Console.WriteLine(TUI.STARTGLYPH + "Config File not found");
Console.WriteLine(TUI.CONTINUEGLYPH + "The data you enter will be saved in a new Config file");
await RunWithoutConfig();
}
}
private static async Task RunWithConfig(Config config)
{
string courseUrl = TUI.GetCourseUrl();
await RunExtractorAndDownloader(config, courseUrl);
}