/* -*- 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/mobility-model-notifier.h"

#include "ns3/position-allocator.h"

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

#include "ns3/log.h"

namespace ns3 {

NS_LOG_COMPONENT_DEFINE ("MobilityHelper");

MobilityHelper::MobilityHelper ()

  : m_notifierEnabled (false)

{

  m_position = CreateObject<RandomRectanglePositionAllocator> ("X", ConstantVariable (0.0),

								   "Y", ConstantVariable (0.0));

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

}

void 

MobilityHelper::EnableNotifier (void)

{

  m_notifierEnabled = true;

}

void 

MobilityHelper::DisableNotifier (void)

{

  m_notifierEnabled = false;

}

void 

MobilityHelper::SetPositionAllocator (Ptr<PositionAllocator> allocator)

{

  m_position = allocator;

}

void 

MobilityHelper::SetPositionAllocator (std::string type,

				      std::string n1, Attribute v1,

				      std::string n2, Attribute v2,

				      std::string n3, Attribute v3,

				      std::string n4, Attribute v4,

				      std::string n5, Attribute v5,

				      std::string n6, Attribute v6,

				      std::string n7, Attribute v7,

				      std::string n8, Attribute v8,

				      std::string n9, Attribute 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, Attribute v1,

				  std::string n2, Attribute v2,

				  std::string n3, Attribute v3,

				  std::string n4, Attribute v4,

				  std::string n5, Attribute v5,

				  std::string n6, Attribute v6,

				  std::string n7, Attribute v7,

				  std::string n8, Attribute v8,

				  std::string n9, Attribute 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::PopReferenceMobilityModel (void)

{

  m_mobilityStack.pop_back ();

}

std::string 

MobilityHelper::GetMobilityModelType (void) const

{

  return m_mobility.GetTypeId ().GetName ();

}

void 

MobilityHelper::Layout (NodeContainer c)

{

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

    {

      Ptr<Object> object = *i;

      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 = 

		CreateObject<HierarchicalMobilityModel> ("Child", model,

							 "Parent", parent);

	      object->AggregateObject (hierarchical);

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

	    }

	}

      Vector position = m_position->GetNext ();

      model->SetPosition (position);

      if (m_notifierEnabled)

	{

	  Ptr<MobilityModelNotifier> notifier = 

	    object->GetObject<MobilityModelNotifier> ();

	  if (notifier == 0)

	    {

	      object->AggregateObject (CreateObject<MobilityModelNotifier> ());

	    }

	}

    }

}

void 

MobilityHelper::LayoutAll (void)

{

  Layout (NodeContainer::GetGlobal ());

}

} // namespace ns3