/*
GNU General Public License version 3 notice

Copyright (C) 2012 Mihawk <luiz@netdome.biz>. All rights reserved.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see < http://www.gnu.org/licenses/ >.
*/

/* SSH client for connecting to QWNET central */
#ifndef SSHCLIENT_H
#define SSHCLIENT_H

#include <QObject>
#include <QString>

class QProcess;
class QDateTime;
class QStringList;
class App;

class SshClient : public QObject
{
  Q_OBJECT

public:
  enum Error { NoError, ConnectionTimedOutError };

  explicit SshClient(App* app, QObject *parent = 0);
  ~SshClient();
  bool connectToHost(const QString& user, const QString &host);
  bool isConnected() const;
  void disconnectFromHost();
  void write(const QString& data);

signals:
  void error(Error errorCode);
  void connected();

protected:
  void timerEvent(QTimerEvent *e);

private slots:
  void read();
  void exited(int exitCode);

private:
  App*      myApp;
  QProcess* myProcess;
  QRegExp*  myCommandRegex;
  bool      myConnectedFlag;
  int       myConnectionTimerID;
  int       myPingTimerID;
  int       myPongTimerID;
  QStringList* myClients;
  QString   myUsername;
  QString   myHostname;

  void parse(const QDateTime& time, const QString& command, const QString& commandData);

  void ping();
  void pong();

  void reconnect();
};

#endif // SSHCLIENT_H