private async Task DownloadToFile(MetadataTask task, string pathToSave)
{
YouTubeVideo vid = task.SelectedVideo.YoutubeVideo;
long totalDownloaded = 0;
string tempFile = $"{pathToSave}.tmp";
string mp3File = $"{pathToSave}.mp3";
try
{
task.Status = MetadataState.RUNNING;
task.Message = String.Format(Properties.Resources.COMMAND_MSG_URI_SEARCH);
using (ChunkDownloader client = new ChunkDownloader())
{
client.OnProgress += (new ProgressHandler(task)).HandleProgress;
totalDownloaded = await client.DownloadToFile(vid.Uri, tempFile);
}
task.Message = String.Format(Properties.Resources.COMMAND_MSG_START_MP3, tempFile);
FFMpegConverter converter = new FFMpegConverter();
converter.ConvertProgress += (new ConvertProgressHandler(task)).HandleProgress;
converter.ConvertMedia(tempFile, mp3File, "mp3");
System.IO.File.Delete(tempFile);
task.Status = MetadataState.METADATA;
task.Message = String.Format(Properties.Resources.COMMAND_MSG_END_MP3, mp3File);
}
catch (Exception ex)
{
task.Status = MetadataState.ERROR;
task.Message = ex.Message + Environment.NewLine + ex.StackTrace;
}
}
private async Task FetchMetadata(MetadataTask task)
{
if (task.Status != MetadataState.READY)
{
return;
}
try
{
task.ClearVideoCollection();
task.Status = MetadataState.RUNNING;
task.Message = Properties.Resources.COMMAND_MSG_FETCHING_METADATA;
var videos = await(new YouTube()).GetAllVideosAsync(task.Url);
var downloadableVideos = videos.Where(x => x.Resolution > 0 || x.AudioFormat != AudioFormat.Unknown);
task.AddVideoToCollection(downloadableVideos);
task.Status = MetadataState.METADATA;
task.Message = String.Format(Properties.Resources.COMMAND_MSG_DONE_METADATA, task.Videos.Count, videos.Count());
task.Name = String.IsNullOrWhiteSpace(task.Name) ? videos.Select(x => x.Title).First() : task.Name;
}
catch (Exception ex)
{
task.Status = MetadataState.ERROR;
task.Message = ex.Message;
}
}
public void Execute(object parameter)
{
MetadataTask metadataTask = parameter as MetadataTask;
if (metadataTask == null)
{
return;
}
tasks.Remove(metadataTask);
}
public void Execute(object parameter)
{
MetadataTask task = (MetadataTask)parameter;
if (task.Status != MetadataState.METADATA)
{
return;
}
pathGetter.SetExtensionFilter(new string[] { });
pathGetter.SetSuggestedFilename(task.SuggestedFilename);
string pathToSave = pathGetter.GetPath();
if (pathToSave == null)
{
return;
}
Task.Run(async() => await DownloadToFile(task, pathToSave));
}
private async Task DownloadToFile(MetadataTask task, string pathToSave)
{
YouTubeVideo vid = task.SelectedVideo.YoutubeVideo;
long totalDownloaded = 0;
try
{
task.Status = MetadataState.RUNNING;
task.Message = Properties.Resources.COMMAND_MSG_URI_SEARCH;
using (ChunkDownloader client = new ChunkDownloader())
{
client.OnProgress += (new ProgressHandler(task)).HandleProgress;
totalDownloaded = await client.DownloadToFile(vid.Uri, pathToSave);
}
task.Status = MetadataState.METADATA;
task.Message = String.Format(Properties.Resources.COMMAND_MSG_SUCCESS_DOWNLOAD, totalDownloaded.GetBeautifiedByteSize(), pathToSave);
}
catch (Exception ex)
{
task.Status = MetadataState.ERROR;
task.Message = ex.Message + Environment.NewLine + ex.StackTrace;
}
}
internal ConvertProgressHandler(MetadataTask task)
{
this.task = task;
}
public void Execute(object parameter)
{
MetadataTask task = parameter as MetadataTask;
Task.Run(async() => await FetchMetadata(task));
}
