private async Task HandleDownloadRequest(MediaDownloadJob downloadJob)
{
await _vidloadCache.SetJobStatus(downloadJob.TraceId, JobStatus.InProgress)
.Bind(() => _videoLoader.HandleVideoDownloadRequest(downloadJob))
.Bind(ml =>
_vidloadCache.SetMediaLocation(downloadJob.DownloadLink, ml)
.Bind(() => _vidloadCache.SetJobStatus(downloadJob.TraceId, JobStatus.Completed)))
.OnFailure(r => _vidloadCache.SetJobStatus(downloadJob.TraceId, JobStatus.Error));
}
public Task <Result <MediaLocation> > HandleVideoDownloadRequest(MediaDownloadJob job)
{
if (!Uri.TryCreate(job.DownloadLink, UriKind.Absolute, out _))
{
return(Task.FromResult(Result.Failure <MediaLocation>("The URL is not valid")));
}
var commandlineArguments = new List <string> {
$"\"{job.DownloadLink}\"",
"-c",
"-i",
"-w",
"--no-part",
"--no-call-home",
$"-o \"{_vidloadConfiguration.FilesystemConfiguration.DownloadDirectory}/{job.TraceId}.%(ext)s\"",
};
if (_vidloadConfiguration.NetworkConfiguration.UseProxy)
{
commandlineArguments.Add($"--proxy \"{_vidloadConfiguration.NetworkConfiguration.Proxy}\"");
}
if (FormatSpecifier.IsAudioFormat(job.TargetFormat))
{
commandlineArguments.Add("--extract-audio");
commandlineArguments.Add($"--audio-format {job.TargetFormat.ToString().ToLower()}");
commandlineArguments.Add("-f \"bestaudio\"");
}
if (FormatSpecifier.IsVideoFormat(job.TargetFormat))
{
commandlineArguments.Add("-f \"bestvideo\"");
commandlineArguments.Add($"--recode-video {job.TargetFormat.ToString().ToLower()}");
}
var downloadResult = _shellCommandExecutor
.Execute("youtube-dl", commandlineArguments, TimeSpan.FromHours(1));
if (downloadResult.IsSuccess)
{
var fileName = $"{job.TraceId}.{FormatSpecifier.GetFileExtensionsForFormat(job.TargetFormat)}";
var filePath = Path.Join(_vidloadConfiguration.FilesystemConfiguration.DownloadDirectory, fileName);
return(Task.FromResult(File.Exists(filePath)
? Result.Success(new MediaLocation {
FilePath = filePath, TraceId = job.TraceId, DownloadLink = job.DownloadLink
})
: Result.Failure <MediaLocation>("Could not post-process the video. Output File not found")));
}
return(Task.FromResult(Result.Failure <MediaLocation>("WHOOOP")));
}
public Task <Result> Enqueue(MediaDownloadJob mediaDownloadJob)
{
try {
var serialized = JsonConvert.SerializeObject(mediaDownloadJob);
var encoded = Encoding.UTF8.GetBytes(serialized);
_rabbitMqChannel.BasicPublish(
string.Empty,
_vidloadConfiguration.JobQueueConfiguration.MediaDownloadJobQueueName,
null,
encoded
);
return(Task.FromResult(Result.Success()));
} catch {
return(Task.FromResult(Result.Failure("Could not enqueue Job")));
}
}