/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2008 INRIA

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * 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, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#include "csma-helper.h"

#include "ns3/simulator.h"

#include "ns3/object-factory.h"

#include "ns3/queue.h"

#include "ns3/csma-net-device.h"

#include "ns3/csma-channel.h"

#include "ns3/pcap-writer.h"

#include "ns3/config.h"

#include "ns3/packet.h"

#include <string>

namespace ns3 {

CsmaHelper::CsmaHelper ()

{

  m_queueFactory.SetTypeId ("ns3::DropTailQueue");

  m_deviceFactory.SetTypeId ("ns3::CsmaNetDevice");

  m_channelFactory.SetTypeId ("ns3::CsmaChannel");

}

void 

CsmaHelper::SetQueue (std::string type,

		      std::string n1, Attribute v1,

		      std::string n2, Attribute v2,

		      std::string n3, Attribute v3,

		      std::string n4, Attribute v4)

{

  m_queueFactory.SetTypeId (type);

  m_queueFactory.Set (n1, v1);

  m_queueFactory.Set (n2, v2);

  m_queueFactory.Set (n3, v3);

  m_queueFactory.Set (n4, v4);

}

void 

CsmaHelper::SetDeviceParameter (std::string n1, Attribute v1)

{

  m_deviceFactory.Set (n1, v1);

}

void 

CsmaHelper::SetChannelParameter (std::string n1, Attribute v1)

{

  m_channelFactory.Set (n1, v1);

}

void 

CsmaHelper::EnablePcap (std::string filename, uint32_t nodeid, uint32_t deviceid)

{

  std::ostringstream oss;

  oss << filename << "-" << nodeid << "-" << deviceid << ".pcap";

  Ptr<PcapWriter> pcap = Create<PcapWriter> ();

  pcap->Open (oss.str ());

  pcap->WriteEthernetHeader ();

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/Rx";

  Config::ConnectWithoutContext (oss.str (), MakeBoundCallback (&CsmaHelper::RxEvent, pcap));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/TxQueue/Enqueue";

  Config::ConnectWithoutContext (oss.str (), MakeBoundCallback (&CsmaHelper::EnqueueEvent, pcap));

}

void 

CsmaHelper::EnablePcap (std::string filename, NetDeviceContainer d)

{

  for (NetDeviceContainer::Iterator i = d.Begin (); i != d.End (); ++i)

    {

      Ptr<NetDevice> dev = *i;

      EnablePcap (filename, dev->GetNode ()->GetId (), dev->GetIfIndex ());

    }

}

void

CsmaHelper::EnablePcap (std::string filename, NodeContainer n)

{

  NetDeviceContainer devs;

  for (NodeContainer::Iterator i = n.Begin (); i != n.End (); ++i)

    {

      Ptr<Node> node = *i;

      for (uint32_t j = 0; j < node->GetNDevices (); ++j)

	{

	  devs.Add (node->GetDevice (j));

	}

    }

  EnablePcap (filename, devs);

}

void

CsmaHelper::EnablePcap (std::string filename)

{

  EnablePcap (filename, NodeContainer::GetGlobal ());

}

void 

CsmaHelper::EnableAscii (std::ostream &os, uint32_t nodeid, uint32_t deviceid)

{

  Packet::EnableMetadata ();

  std::ostringstream oss;

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/Rx";

  Config::Connect (oss.str (), MakeBoundCallback (&CsmaHelper::AsciiRxEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/TxQueue/Enqueue";

  Config::Connect (oss.str (), MakeBoundCallback (&CsmaHelper::AsciiEnqueueEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/TxQueue/Dequeue";

  Config::Connect (oss.str (), MakeBoundCallback (&CsmaHelper::AsciiDequeueEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::CsmaNetDevice/TxQueue/Drop";

  Config::Connect (oss.str (), MakeBoundCallback (&CsmaHelper::AsciiDropEvent, &os));

}

void 

CsmaHelper::EnableAscii (std::ostream &os, NetDeviceContainer d)

{

  for (NetDeviceContainer::Iterator i = d.Begin (); i != d.End (); ++i)

    {

      Ptr<NetDevice> dev = *i;

      EnableAscii (os, dev->GetNode ()->GetId (), dev->GetIfIndex ());

    }

}

void

CsmaHelper::EnableAscii (std::ostream &os, NodeContainer n)

{

  NetDeviceContainer devs;

  for (NodeContainer::Iterator i = n.Begin (); i != n.End (); ++i)

    {

      Ptr<Node> node = *i;

      for (uint32_t j = 0; j < node->GetNDevices (); ++j)

	{

	  devs.Add (node->GetDevice (j));

	}

    }

  EnableAscii (os, devs);

}

void

CsmaHelper::EnableAscii (std::ostream &os)

{

  EnableAscii (os, NodeContainer::GetGlobal ());

}

NetDeviceContainer 

{

  Ptr<CsmaChannel> channel = m_channelFactory.Create ()->GetObject<CsmaChannel> ();

}

NetDeviceContainer 

{

  NetDeviceContainer container;

  for (NodeContainer::Iterator i = c.Begin (); i != c.End (); i++)

    {

      Ptr<Node> node = *i;

      Ptr<CsmaNetDevice> device = m_deviceFactory.Create<CsmaNetDevice> ();

      device->SetAddress (Mac48Address::Allocate ());

      node->AddDevice (device);

      Ptr<Queue> queue = m_queueFactory.Create<Queue> ();

      device->AddQueue (queue);

      device->Attach (channel);

      container.Add (device);

    }

  return container;

}

void 

CsmaHelper::EnqueueEvent (Ptr<PcapWriter> writer, Ptr<const Packet> packet)

{

  writer->WritePacket (packet);

}

void 

CsmaHelper::RxEvent (Ptr<PcapWriter> writer, Ptr<const Packet> packet)

{

  writer->WritePacket (packet);

}

void 

CsmaHelper::AsciiEnqueueEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

  *os << "+ " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

CsmaHelper::AsciiDequeueEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

  *os << "- " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

CsmaHelper::AsciiDropEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

  *os << "d " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

CsmaHelper::AsciiRxEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

  *os << "r " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

} // namespace ns3