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using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Tango.Core;
using Tango.Core.Threading;
using Tango.FileSystem;
using Tango.FileSystem.Network;
using Tango.FSE.Common.Connection;
using Tango.FSE.Common.FileSystem;
using Tango.Transport;
namespace Tango.FSE.UI.FileSystem
{
public class DefaultFileSystemProvider : ExtendedObject, IFileSystemProvider
{
private IMachineProvider _machineProvider;
public DefaultFileSystemProvider(IMachineProvider machineProvider)
{
_machineProvider = machineProvider;
}
public async Task<IFileSystemContainer> GetFolder(string path)
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<GetFileSystemItemRequest, GetFileSystemItemResponse>(new GetFileSystemItemRequest()
{
Path = path
}, new TransportRequestConfig()
{
Timeout = TimeSpan.FromSeconds(30),
});
return FileSystemItem.FromDTO(response.FileSystemItem) as IFileSystemContainer;
}
public async Task<IFileSystemContainer> GetSpecialFolder(Environment.SpecialFolder specialFolder)
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<GetFileSystemItemRequest, GetFileSystemItemResponse>(new GetFileSystemItemRequest()
{
SpecialFolder = specialFolder
}, new TransportRequestConfig()
{
Timeout = TimeSpan.FromSeconds(30),
});
return FileSystemItem.FromDTO(response.FileSystemItem) as IFileSystemContainer;
}
public async Task<IFileSystemContainer> GetThisPC()
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<GetFileSystemItemRequest, GetFileSystemItemResponse>(new GetFileSystemItemRequest()
{
//No parameters at all
}, new TransportRequestConfig()
{
Timeout = TimeSpan.FromSeconds(30),
});
return FileSystemItem.FromDTO(response.FileSystemItem) as IFileSystemContainer;
}
public Task<FileSystemHandler> Download(FileSystemItem item, string localTargetFolder)
{
String operationId = String.Empty;
String destination = String.Empty;
long downloadLength = 0;
bool aborted = false;
FileSystemHandler handler = null;
if (item.Type == FileSystemItemType.File)
{
destination = Path.Combine(localTargetFolder, item.Name);
}
else if (item.Type == FileSystemItemType.File)
{
destination = Path.Combine(localTargetFolder, item.Name);
}
handler = new FileSystemHandler(item, destination, async () =>
{
if (!aborted)
{
aborted = true;
try
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<AbortOperationRequest, AbortOperationResponse>(
new AbortOperationRequest()
{
OperationId = operationId
}, new TransportRequestConfig() { Timeout = TimeSpan.FromSeconds(30) });
}
catch (Exception ex)
{
LogManager.Log(ex, "Error aborting the download operation.");
}
finally
{
handler.RaiseAborted();
}
}
});
ThreadFactory.StartNew(async () =>
{
try
{
if (item.Type == FileSystemItemType.File)
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<FileDownloadRequest, FileDownloadResponse>(
new FileDownloadRequest()
{
Path = item.Path
}, new TransportRequestConfig() { Timeout = TimeSpan.FromSeconds(20) });
operationId = response.OperationId;
downloadLength = response.Length;
handler.OperationId = operationId;
}
else if (item.Type == FileSystemItemType.Folder)
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<FolderDownloadRequest, FolderDownloadResponse>(
new FolderDownloadRequest()
{
Path = item.Path
}, new TransportRequestConfig() { Timeout = TimeSpan.FromSeconds(60) });
operationId = response.OperationId;
downloadLength = response.Length;
handler.OperationId = operationId;
}
else
{
throw new NotSupportedException("The requested file system item is not supported for downloading.");
}
}
catch (Exception ex)
{
handler.RaiseFailed(ex);
return;
}
long position = 0;
var tempFile = TemporaryManager.CreateFile();
while (position < downloadLength && !aborted)
{
if (handler.IsPaused)
{
Thread.Sleep(1000);
continue;
}
try
{
var response = await _machineProvider.MachineOperator.SendGenericRequest<ChunkDownloadRequest, ChunkDownloadResponse>(
new ChunkDownloadRequest()
{
MaxChunkSize = 1024 * 10,
OperationId = operationId,
Position = position,
}, new TransportRequestConfig() { Timeout = TimeSpan.FromSeconds(30), Priority = QueuePriority.Low });
using (FileStream fs = new FileStream(tempFile, FileMode.Append))
{
fs.Write(response.Data, 0, response.Data.Length);
}
position += response.Data.Length;
handler.InvalidateProgress(position, downloadLength);
}
catch (Exception ex)
{
tempFile.Delete();
handler.RaiseFailed(ex);
return;
}
}
try
{
if (item.Type == FileSystemItemType.File)
{
File.Copy(tempFile, destination, true);
tempFile.Delete();
}
else if (item.Type == FileSystemItemType.Folder)
{
ZipFile.ExtractToDirectory(tempFile, destination);
tempFile.Delete();
}
}
catch (Exception ex)
{
handler.RaiseFailed(ex);
}
handler.RaiseCompleted();
});
return Task.FromResult(handler);
}
public Task<FileSystemHandler> Upload(string sourcePath, string remoteTargetFolder)
{
throw new NotImplementedException();
}
}
}
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