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

/*

 * Copyright (c) 2005,2006,2007 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 "ns3/core-module.h"

#include "ns3/common-module.h"

#include "ns3/node-module.h"

#include "ns3/helper-module.h"

#include "ns3/mobility-module.h"

#include "ns3/contrib-module.h"

#include <iostream>

NS_LOG_COMPONENT_DEFINE ("Main");

using namespace ns3;

class Experiment

{

public:

  Experiment ();

  Experiment (std::string name);

  GnuplotDataset Run (const WifiHelper &wifi);

private:

  void ReceivePacket (Ptr<Socket> socket);

  void SetPosition (Ptr<Node> node, Vector position);

  Vector GetPosition (Ptr<Node> node);

  void AdvancePosition (Ptr<Node> node);

  Ptr<Socket> SetupPacketReceive (Ptr<Node> node);

  uint32_t m_bytesTotal;

  GnuplotDataset m_output;

};

Experiment::Experiment ()

  : m_output ()

{}

Experiment::Experiment (std::string name)

  : m_output (name)

{

  m_output.SetStyle (GnuplotDataset::LINES);

}

void

Experiment::SetPosition (Ptr<Node> node, Vector position)

{

  Ptr<MobilityModel> mobility = node->GetObject<MobilityModel> ();

  mobility->SetPosition (position);

}

Vector

Experiment::GetPosition (Ptr<Node> node)

{

  Ptr<MobilityModel> mobility = node->GetObject<MobilityModel> ();

  return mobility->GetPosition ();

}

void 

Experiment::AdvancePosition (Ptr<Node> node) 

{

  Vector pos = GetPosition (node);

  double mbs = ((m_bytesTotal * 8.0) / 1000000);

  m_bytesTotal = 0;

  m_output.Add (pos.x, mbs);

  pos.x += 1.0;

  if (pos.x >= 210.0) 

    {

      return;

    }

  SetPosition (node, pos);

  //std::cout << "x="<<pos.x << std::endl;

  Simulator::Schedule (Seconds (1.0), &Experiment::AdvancePosition, this, node);

}

void

Experiment::ReceivePacket (Ptr<Socket> socket)

{

  Ptr<Packet> packet;

  while (packet = socket->Recv ())

    {

      m_bytesTotal += packet->GetSize ();

    }

}

Ptr<Socket>

Experiment::SetupPacketReceive (Ptr<Node> node)

{

  TypeId tid = TypeId::LookupByName ("ns3::PacketSocketFactory");

  Ptr<Socket> sink = Socket::CreateSocket (node, tid);

  sink->Bind ();

  sink->SetRecvCallback (MakeCallback (&Experiment::ReceivePacket, this));

  return sink;

}

GnuplotDataset

Experiment::Run (const WifiHelper &wifi)

{

  m_bytesTotal = 0;

  NodeContainer c;

  c.Create (2);

  PacketSocketHelper packetSocket;

  packetSocket.Install (c);

  NetDeviceContainer devices = wifi.Install (c);

  MobilityHelper mobility;

  Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();

  positionAlloc->Add (Vector (0.0, 0.0, 0.0));

  positionAlloc->Add (Vector (5.0, 0.0, 0.0));

  mobility.SetPositionAllocator (positionAlloc);

  mobility.SetMobilityModel ("ns3::StaticMobilityModel");

  mobility.Install (c);

  PacketSocketAddress socket;

  socket.SetSingleDevice(devices.Get (0)->GetIfIndex ());

  socket.SetPhysicalAddress (devices.Get (1)->GetAddress ());

  socket.SetProtocol (1);

  OnOffHelper onoff ("ns3::PacketSocketFactory", Address (socket));

  onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (250)));

  onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));

  onoff.SetAttribute ("DataRate", DataRateValue (DataRate (60000000)));

  onoff.SetAttribute ("PacketSize", UintegerValue (2000));

  ApplicationContainer apps = onoff.Install (c.Get (0));

  apps.Start (Seconds (0.5));

  apps.Stop (Seconds (250.0));

  Simulator::Schedule (Seconds (1.5), &Experiment::AdvancePosition, this, c.Get (1));

  Ptr<Socket> recvSink = SetupPacketReceive (c.Get (1));

  Simulator::Run ();

  Simulator::Destroy ();

  return m_output;

}

int main (int argc, char *argv[])

{

  // disable fragmentation

  Config::SetDefault ("ns3::WifiRemoteStationManager::FragmentationThreshold", StringValue ("2200"));

  Config::SetDefault ("ns3::WifiRemoteStationManager::RtsCtsThreshold", StringValue ("2200"));

  CommandLine cmd;

  cmd.Parse (argc, argv);

  Gnuplot gnuplot = Gnuplot ("reference-rates.png");

  Experiment experiment;

  WifiHelper wifi;

  GnuplotDataset dataset;

  wifi.SetMac ("ns3::AdhocWifiMac");

  wifi.SetPhy ("ns3::WifiPhy");

  NS_LOG_DEBUG ("54");

  experiment = Experiment ("54mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-54mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("48");

  experiment = Experiment ("48mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-48mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("36");

  experiment = Experiment ("36mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-36mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("24");

  experiment = Experiment ("24mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-24mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("18");

  experiment = Experiment ("18mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-18mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("12");

  experiment = Experiment ("12mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-12mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("9");

  experiment = Experiment ("9mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-9mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("6");

  experiment = Experiment ("6mb");

  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",

                                "DataMode", StringValue ("wifia-6mbs"));

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  gnuplot.GenerateOutput (std::cout);

  gnuplot = Gnuplot ("rate-control.png");

  Config::SetDefault ("ns3::WifiPhy::Standard", StringValue ("holland"));

  NS_LOG_DEBUG ("arf");

  experiment = Experiment ("arf");

  wifi.SetRemoteStationManager ("ns3::ArfWifiManager");

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("aarf");

  experiment = Experiment ("aarf");

  wifi.SetRemoteStationManager ("ns3::AarfWifiManager");

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  NS_LOG_DEBUG ("ideal");

  experiment = Experiment ("ideal");

  wifi.SetRemoteStationManager ("ns3::IdealWifiManager");

  dataset = experiment.Run (wifi);

  gnuplot.AddDataset (dataset);

  gnuplot.GenerateOutput (std::cout);

  return 0;

}