/* -*- 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 "ns3/mobility-helper.h"

#include "ns3/mobility-model.h"

#include "ns3/position-allocator.h"

#include "ns3/hierarchical-mobility-model.h"

#include "ns3/log.h"

#include "ns3/pointer.h"

#include "ns3/config.h"

#include "ns3/simulator.h"

#include "ns3/names.h"

#include "ns3/string.h"

#include <iostream>

namespace ns3 {

NS_LOG_COMPONENT_DEFINE ("MobilityHelper");

MobilityHelper::MobilityHelper ()

{

  m_position = CreateObjectWithAttributes<RandomRectanglePositionAllocator> 

      ("X", StringValue ("ns3::ConstantRandomVariable[Constant=0.0]"),

      "Y", StringValue ("ns3::ConstantRandomVariable[Constant=0.0]"));

  m_mobility.SetTypeId ("ns3::ConstantPositionMobilityModel");

}

MobilityHelper::~MobilityHelper ()

{

}

void

MobilityHelper::SetPositionAllocator (Ptr<PositionAllocator> allocator)

{

  m_position = allocator;

}

void

MobilityHelper::SetPositionAllocator (std::string type,

                                      std::string n1, const AttributeValue &v1,

                                      std::string n2, const AttributeValue &v2,

                                      std::string n3, const AttributeValue &v3,

                                      std::string n4, const AttributeValue &v4,

                                      std::string n5, const AttributeValue &v5,

                                      std::string n6, const AttributeValue &v6,

                                      std::string n7, const AttributeValue &v7,

                                      std::string n8, const AttributeValue &v8,

                                      std::string n9, const AttributeValue &v9)

{

  ObjectFactory pos;

  pos.SetTypeId (type);

  pos.Set (n1, v1);

  pos.Set (n2, v2);

  pos.Set (n3, v3);

  pos.Set (n4, v4);

  pos.Set (n5, v5);

  pos.Set (n6, v6);

  pos.Set (n7, v7);

  pos.Set (n8, v8);

  pos.Set (n9, v9);

  m_position = pos.Create ()->GetObject<PositionAllocator> ();

}

void 

MobilityHelper::SetMobilityModel (std::string type,

                                  std::string n1, const AttributeValue &v1,

                                  std::string n2, const AttributeValue &v2,

                                  std::string n3, const AttributeValue &v3,

                                  std::string n4, const AttributeValue &v4,

                                  std::string n5, const AttributeValue &v5,

                                  std::string n6, const AttributeValue &v6,

                                  std::string n7, const AttributeValue &v7,

                                  std::string n8, const AttributeValue &v8,

                                  std::string n9, const AttributeValue &v9)

{

  m_mobility.SetTypeId (type);

  m_mobility.Set (n1, v1);

  m_mobility.Set (n2, v2);

  m_mobility.Set (n3, v3);

  m_mobility.Set (n4, v4);

  m_mobility.Set (n5, v5);

  m_mobility.Set (n6, v6);

  m_mobility.Set (n7, v7);

  m_mobility.Set (n8, v8);

  m_mobility.Set (n9, v9);

}

void 

MobilityHelper::PushReferenceMobilityModel (Ptr<Object> reference)

{

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

  m_mobilityStack.push_back (mobility);

}

void 

MobilityHelper::PushReferenceMobilityModel (std::string referenceName)

{

  Ptr<MobilityModel> mobility = Names::Find<MobilityModel> (referenceName);

  m_mobilityStack.push_back (mobility);

}

void 

MobilityHelper::PopReferenceMobilityModel (void)

{

  m_mobilityStack.pop_back ();

}

std::string 

MobilityHelper::GetMobilityModelType (void) const

{

  return m_mobility.GetTypeId ().GetName ();

}

void

MobilityHelper::Install (Ptr<Node> node) const

{

  Ptr<Object> object = node;

  Ptr<MobilityModel> model = object->GetObject<MobilityModel> ();

  if (model == 0)

    {

      model = m_mobility.Create ()->GetObject<MobilityModel> ();

      if (model == 0)

        {

          NS_FATAL_ERROR ("The requested mobility model is not a mobility model: \""<< 

                          m_mobility.GetTypeId ().GetName ()<<"\"");

        }

      if (m_mobilityStack.empty ())

        {

          NS_LOG_DEBUG ("node="<<object<<", mob="<<model);

          object->AggregateObject (model);

        }

      else

        {

          // we need to setup a hierarchical mobility model

          Ptr<MobilityModel> parent = m_mobilityStack.back ();

          Ptr<MobilityModel> hierarchical = 

            CreateObjectWithAttributes<HierarchicalMobilityModel> ("Child", PointerValue (model),

                                                                   "Parent", PointerValue (parent));

          object->AggregateObject (hierarchical);

          NS_LOG_DEBUG ("node="<<object<<", mob="<<hierarchical);

        }

    }

  Vector position = m_position->GetNext ();

  model->SetPosition (position);

}

void

MobilityHelper::Install (std::string nodeName) const

{

  Ptr<Node> node = Names::Find<Node> (nodeName);

  Install (node);

}

void 

MobilityHelper::Install (NodeContainer c) const

{

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

    {

      Install (*i);

    }

}

void 

MobilityHelper::InstallAll (void)

{

  Install (NodeContainer::GetGlobal ());

}

static double

DoRound (double v)

{

  if (v <= 1e-4 && v >= -1e-4)

    {

      return 0.0;

    }

  else if (v <= 1e-3 && v >= 0)

    {

      return 1e-3;

    }

  else if (v >= -1e-3 && v <= 0)

    {

      return -1e-3;

    }

  else

    {

      return v;

    }

}

void

{

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

  *os << "now=" << Simulator::Now ()

      << " node=" << node->GetId ();

  Vector pos = mobility->GetPosition ();

  pos.x = DoRound (pos.x);

  pos.y = DoRound (pos.y);

  pos.z = DoRound (pos.z);

  Vector vel = mobility->GetVelocity ();

  vel.x = DoRound (vel.x);

  vel.y = DoRound (vel.y);

  vel.z = DoRound (vel.z);

  std::streamsize saved_precision = os->precision ();

  std::ios::fmtflags saved_flags = os->flags ();

  os->precision (3);

  os->setf (std::ios::fixed,std::ios::floatfield);

  *os << " pos=" << pos.x << ":" << pos.y << ":" << pos.z

      << " vel=" << vel.x << ":" << vel.y << ":" << vel.z

      << std::endl;

  os->flags (saved_flags);

  os->precision (saved_precision);

}

void 

{

  std::ostringstream oss;

  oss << "/NodeList/" << nodeid << "/$ns3::MobilityModel/CourseChange";

  Config::ConnectWithoutContext (oss.str (), 

}

void 

{

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

    {

    }

}

void 

{

}

int64_t

MobilityHelper::AssignStreams (NodeContainer c, int64_t stream)

{

  int64_t currentStream = stream;

  Ptr<Node> node;

  Ptr<MobilityModel> mobility;

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

    {

      node = (*i);

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

      if (mobility)

        {

          currentStream += mobility->AssignStreams (currentStream);

        }

    }

  return (currentStream - stream);

}

} // namespace ns3