using System;
using Tamir.SharpSsh;
using System.Collections;
using System.IO;
 
namespace Dizzy
{
 
	public class SFTPConnection
	{
 
		public Sftp sftp;
		string user;
		public delegate void SFTPEvent (string src, string dest, int transferredBytes,
		                                int totalBytes, string message);
 
		public event SFTPEvent TransferStarted;
		public event SFTPEvent TransferProgress;
		public event SFTPEvent TransferStopped;
 
		public delegate void Del (string src, string dest,
		                          int transferredBytes, int totalBytes, string message);
 
		public SFTPConnection (string user, string password)
		{
 
			// Inizializziamo il protocollo
			this.user = user;
			this.sftp = new Sftp (GlobalConfig.GetValue("server"), user);
			this.sftp.Password = password;
 
			this.sftp.OnTransferStart += new FileTransferEvent(this.TransferStartedHandler);
			this.sftp.OnTransferProgress += new FileTransferEvent(this.TransferProgressHandler);
			this.sftp.OnTransferEnd += new FileTransferEvent(this.TransferStoppedHandler);
 
		}
 
		public void Abort () {
			this.sftp.Cancel ();
		}
 
		private void TransferStartedHandler(string src, string dest, int transferredBytes,
		                                    int totalBytes, string message)
		{
			if(TransferStarted != null)
				TransferStarted(src, dest, transferredBytes, totalBytes, message);
		}
 
		private void TransferProgressHandler(string src, string dest, int transferredBytes,
		                                    int totalBytes, string message)
		{
			if (TransferProgress != null)
				TransferProgress(src, dest, transferredBytes, totalBytes, message);
		}
 
		private void TransferStoppedHandler(string src, string dest, int transferredBytes,
		                                    int totalBytes, string message)
		{
			if (TransferStopped != null)
				TransferStopped(src, dest, transferredBytes, totalBytes, message);
		}
 
		public void Connect()
		{
			sftp.Connect (22);
		}
 
 
		public void Download(File f, string downloadFolder)
		{
			this.sftp.Get (f.path, downloadFolder + Path.DirectorySeparatorChar +  f.name);
		}
 
		public void Upload(string filename)
		{
			/* Normalizziamo il nome della cartella sul server */
			string folder = GlobalConfig.GetValue("folder");
			if (!folder.EndsWith("/"))
				folder = folder + "/";
			this.sftp.Put(filename, folder + this.user + "/");
		}
 
		public void Disconnect ()
		{
			sftp.Close ();
		}
	}
 
 
}