Libation/Source/AaxDecrypter/UnencryptedAudiobookDownloader.cs

45 lines
1.3 KiB
C#

using FileManager;
using System;
using System.Threading.Tasks;
namespace AaxDecrypter
{
public class UnencryptedAudiobookDownloader : AudiobookDownloadBase
{
protected override long InputFilePosition => InputFileStream.WritePosition;
public UnencryptedAudiobookDownloader(string outFileName, string cacheDirectory, IDownloadOptions dlLic)
: base(outFileName, cacheDirectory, dlLic)
{
AsyncSteps.Name = "Download Unencrypted Audiobook";
AsyncSteps["Step 1: Download Audiobook"] = Step_DownloadAndDecryptAudiobookAsync;
AsyncSteps["Step 2: Download Clips and Bookmarks"] = Step_DownloadClipsBookmarksAsync;
AsyncSteps["Step 3: Create Cue"] = Step_CreateCueAsync;
}
public override Task CancelAsync()
{
IsCanceled = true;
FinalizeDownload();
return Task.CompletedTask;
}
protected override async Task<bool> Step_DownloadAndDecryptAudiobookAsync()
{
// MUST put InputFileStream.Length first, because it starts background downloader.
while (InputFileStream.Length > InputFilePosition && !InputFileStream.IsCancelled)
await Task.Delay(200);
if (IsCanceled)
return false;
else
{
FinalizeDownload();
FileUtility.SaferMove(InputFileStream.SaveFilePath, OutputFileName);
OnFileCreated(OutputFileName);
return true;
}
}
}
}