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/*
    This file is part of the TOBI Interface A (TiA) library.

    Commercial Usage
    Licensees holding valid Graz University of Technology Commercial
    licenses may use this file in accordance with the Graz University
    of Technology Commercial License Agreement provided with the
    Software or, alternatively, in accordance with the terms contained in
    a written agreement between you and Graz University of Technology.

    --------------------------------------------------

    GNU Lesser General Public License Usage
    Alternatively, this file may be used under the terms of the GNU Lesser
    General Public License version 3.0 as published by the Free Software
    Foundation and appearing in the file lgpl.txt included in the
    packaging of this file.  Please review the following information to
    ensure the GNU General Public License version 3.0 requirements will be
    met: http://www.gnu.org/copyleft/lgpl.html.

    In case of GNU Lesser General Public License Usage ,the TiA library
    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 Lesser General Public License
    along with the TiA library. If not, see <http://www.gnu.org/licenses/>.

    Copyright 2010 Graz University of Technology
    Contact: TiA@tobi-project.org
*/

#ifndef TCPDATASERVER_H
#define TCPDATASERVER_H

// Standard
#include <set>
#include <vector>

// Boost
#include <boost/thread/condition.hpp>

// local
#include "tcp_server.h"

namespace tia
{
// forward declarations
class DataPacket;

//-----------------------------------------------------------------------------

class TCPDataConnection : public TCPServer, public boost::enable_shared_from_this<TCPDataConnection>
{
public:
  typedef boost::shared_ptr<TCPDataConnection> pointer;

  static pointer create(boost::asio::io_service& io_service)
  {
    return pointer(new TCPDataConnection(io_service));
  }

public:
  virtual ~TCPDataConnection(){}

  bool connected() const {return connection_; }

  boost::asio::ip::tcp::endpoint localEndpoint() const
  {
    return acceptor_.local_endpoint();
  }

  void sendDataPacket(DataPacket& packet);

protected:
  virtual void startAccept();

  virtual void handleAccept(const TCPConnection::pointer& new_connection,
        const boost::system::error_code& error);

private:
  TCPDataConnection(boost::asio::io_service& io_service);

  void handleWrite(const boost::system::error_code& e,
      std::size_t bytes_transferred);

private:
  TCPConnection::pointer         connection_;  

  boost::asio::ip::tcp::endpoint remote_endpoint_;  

  boost::mutex                   mutex_; 
};

//-----------------------------------------------------------------------------

class TCPDataServer
{
public:
  TCPDataServer(boost::asio::io_service& io_service);

  bool connected(const boost::asio::ip::tcp::endpoint& endpoint) const;

  boost::asio::ip::tcp::endpoint addConnection();

  void removeConnection(const boost::asio::ip::tcp::endpoint& endpoint);

  void enableTransmission(const boost::asio::ip::tcp::endpoint& endpoint, bool enable);

  void sendDataPacket(DataPacket& packet);

private:
  typedef std::map<boost::asio::ip::tcp::endpoint, TCPDataConnection::pointer> ClientConnectionMap;

  boost::asio::io_service&  io_service_; 
  ClientConnectionMap       connections_; 
  ClientConnectionMap       connections_transmission_enabled_; 
  mutable boost::mutex      mutex_; 
};

} // Namespace tobiss

#endif //TCPDATASERVER_H

// End Of File