/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2011 University of California, Los Angeles
 *
 * 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: Ilya Moiseenko <iliamo@cs.ucla.edu>
 */

#include <ctime>
#include <sstream>

#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/applications-module.h"
#include "ns3/ipv4-static-routing-helper.h"
#include "ns3/ipv4-list-routing-helper.h"
#include "ns3/annotated-topology-reader.h"
#include <list>
#include "ns3/ccnx.h"
#include "ns3/ipv4-global-routing-helper.h"
#include "ns3/NDNabstraction-module.h"

using namespace ns3;
using namespace std;

NS_LOG_COMPONENT_DEFINE ("AnnotatedTopologyExample");

int main (int argc, char *argv[])
{
  Packet::EnableChecking();
  Packet::EnablePrinting();
  string input ("/Users/iliamo/ns3-abstract-ndn/ns-3.11/src/NDNabstraction/examples/simpletopology.txt");
    
  // Set up command line parameters used to control the experiment.
  //CommandLine cmd;
  //cmd.AddValue ("input", "Name of the input file.",
  //              input);
  //cmd.Parse (argc, argv);
    
    
  // ------------------------------------------------------------
  // -- Read topology data.
  // --------------------------------------------
    
    
  Ptr<AnnotatedTopologyReader> reader = CreateObject<AnnotatedTopologyReader> ();
  reader->SetFileName (input);
    
  NodeContainer nodes;
  if (reader != 0)
    {
      nodes = reader->Read ();
    }
    
  if (reader->LinksSize () == 0)
    {
      NS_LOG_ERROR ("Problems reading the topology file. Failing.");
      return -1;
    }
    
    
  for(uint32_t j=0; j<nodes.GetN(); j++)
    {
      uint32_t name = j+1;
      std::stringstream ss;
      ss<<name;
      Names::Add (ss.str(), nodes.Get (j));
      NS_LOG_INFO("Name = " << ss.str());
    }
 
  // ------------------------------------------------------------
  // -- Create nodes and network stacks
  // --------------------------------------------
  NS_LOG_INFO ("creating internet stack");
  InternetStackHelper stack;
    
    
  //routing
  //Ipv4StaticRoutingHelper staticRouting;
  //Ipv4ListRoutingHelper listRH;
  //listRH.Add (staticRouting, 0);
  //stack.SetRoutingHelper (listRH);  // has effect on the next Install ()
  //stack.Install (nodes);
    
  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
  // Ptr<Ipv4RoutingHelper> ipv4RoutingHelper = stack.GetRoutingHelper ();
  stack.SetRoutingHelper (ipv4RoutingHelper);
  stack.Install(nodes);
    
  NS_LOG_INFO ("creating ip4 addresses");
  Ipv4AddressHelper address;
  address.SetBase ("10.0.0.0", "255.255.255.252");
   
  // // Create router nodes, initialize routing database and set up the routing
  // // tables in the nodes.
  Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
    
  /*grid.AssignIpv4Addresses (
    Ipv4AddressHelper("10.1.0.0", "255.255.255.0"),
    Ipv4AddressHelper("10.2.0.0", "255.255.255.0")
    );
  */
    
  int totlinks = reader->LinksSize ();
    
    
  ///*** applying settings
  NS_LOG_INFO ("creating node containers");
  NodeContainer* nc = new NodeContainer[totlinks];
  TopologyReader::ConstLinksIterator iter;
  int i = 0;
  for ( iter = reader->LinksBegin (); iter != reader->LinksEnd (); iter++, i++ )
    {
      nc[i] = NodeContainer (iter->GetFromNode (), iter->GetToNode ());
    }
    
  NetDeviceContainer* ndc = new NetDeviceContainer[totlinks];
  reader->ApplySettings(ndc,nc);
  ///*** settings applied
    
  NS_LOG_INFO("installing ccnx stack");
  CcnxStackHelper ccnx;
  ccnx.SetForwardingStrategy ("ns3::CcnxFloodingStrategy");
  ccnx.EnableLimits (false);
    
  Ptr<CcnxFaceContainer> cf = ccnx.Install (nodes);
     
  NS_LOG_INFO ("Installing Applications");
  CcnxConsumerHelper helper ("/3");
  ApplicationContainer app = helper.Install (nodes.Get(1));
  app.Start (Seconds (1.0));
  app.Stop (Seconds (1000.05));
    
  /*CcnxConsumerHelper helper2 ("/4");
    ApplicationContainer app2 = helper2.Install(c.Get(5));
    app2.Start (Seconds (1.0));
    app2.Stop (Seconds (1000.05));
  */
  CcnxProducerHelper helper3 ("/3",120);
  ApplicationContainer app3 = helper3.Install(nodes.Get(6));
  app3.Start(Seconds(0.0));
  app3.Stop(Seconds(1500.0));
  /*
    CcnxProducerHelper helper4 ("/4",150);
    ApplicationContainer app4 = helper4.Install(c.Get(0));
    app4.Start(Seconds(0.0));
    app4.Stop(Seconds(1500.0));
  */

  NS_LOG_INFO("Routes");
  ccnx.AddRoute("1","/3",0,1);
  ccnx.AddRoute("3","/3",1,1);
  ccnx.AddRoute("3","/3",2,2);
  /*ccnx.AddRoute("4","/3",1,1);
    ccnx.AddRoute("5","/3",2,1);
  */
    
  // it creates little subnets, one for each couple of nodes.
  NS_LOG_INFO ("creating ipv4 interfaces");
  Ipv4InterfaceContainer* ipic = new Ipv4InterfaceContainer[totlinks];
  for (int i = 0; i < totlinks; i++)
    {
      ipic[i] = address.Assign (ndc[i]);
      address.NewNetwork ();
    }
    
  // ------------------------------------------------------------
  // -- Run the simulation
  // --------------------------------------------
  NS_LOG_INFO ("Run Simulation.");
  Simulator::Stop (Seconds (20));
  Simulator::Run ();
  Simulator::Destroy ();
    
  delete[] ipic;
  delete[] ndc;
  delete[] nc;
    
  NS_LOG_INFO ("Done.");
    
  return 0;
}