/*
 *  Copyright (c) 2007,2008, 2009 INRIA, UDcast
 *
 * 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: Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
 *                              <amine.ismail@udcast.com>
 */
#include "ns3/internet-stack-helper.h"
#include "ns3/ipcs-classifier-record.h"
#include "ns3/ipv4-address-helper.h"
#include "ns3/ipv4-address.h"
#include "ns3/ipv4-interface-container.h"
#include "ns3/log.h"
#include "ns3/net-device-container.h"
#include "ns3/node-container.h"
#include "ns3/service-flow.h"
#include "ns3/simulator.h"
#include "ns3/test.h"
#include "ns3/wimax-helper.h"

using namespace ns3;

/**
 * \ingroup wimax-test
 * \ingroup tests
 *
 * \brief Ns3 Wimax Scheduling Test Case
 */
class Ns3WimaxSchedulingTestCase : public TestCase
{
  public:
    Ns3WimaxSchedulingTestCase();
    ~Ns3WimaxSchedulingTestCase() override;

  private:
    void DoRun() override;
    /**
     * Run once function
     * \param scheduler the wimax scheduler type
     * \returns true if successful
     */
    bool DoRunOnce(WimaxHelper::SchedulerType scheduler);
};

Ns3WimaxSchedulingTestCase::Ns3WimaxSchedulingTestCase()
    : TestCase("Test the 2 different schedulers")
{
}

Ns3WimaxSchedulingTestCase::~Ns3WimaxSchedulingTestCase()
{
}

bool
Ns3WimaxSchedulingTestCase::DoRunOnce(WimaxHelper::SchedulerType scheduler)
{
    NodeContainer ssNodes;
    NodeContainer bsNodes;
    ssNodes.Create(2);
    bsNodes.Create(1);
    WimaxHelper wimax;
    NetDeviceContainer ssDevs;
    NetDeviceContainer bsDevs;
    ssDevs = wimax.Install(ssNodes,
                           WimaxHelper::DEVICE_TYPE_SUBSCRIBER_STATION,
                           WimaxHelper::SIMPLE_PHY_TYPE_OFDM,
                           scheduler);
    bsDevs = wimax.Install(bsNodes,
                           WimaxHelper::DEVICE_TYPE_BASE_STATION,
                           WimaxHelper::SIMPLE_PHY_TYPE_OFDM,
                           scheduler);
    ssDevs.Get(0)->GetObject<SubscriberStationNetDevice>()->SetModulationType(
        WimaxPhy::MODULATION_TYPE_QAM16_12);
    ssDevs.Get(1)->GetObject<SubscriberStationNetDevice>()->SetModulationType(
        WimaxPhy::MODULATION_TYPE_QAM16_12);

    InternetStackHelper stack;
    stack.Install(bsNodes);
    stack.Install(ssNodes);

    Ipv4AddressHelper address;
    address.SetBase("10.1.1.0", "255.255.255.0");

    Ipv4InterfaceContainer SSinterfaces = address.Assign(ssDevs);
    Ipv4InterfaceContainer BSinterface = address.Assign(bsDevs);

    /*------------------------------*/
    //  UdpServerHelper udpServer;
    //  ApplicationContainer serverApps;
    //  UdpClientHelper udpClient;
    //  ApplicationContainer clientApps;
    //
    //  udpServer = UdpServerHelper (100);
    //  serverApps = udpServer.Install (ssNodes.Get (0));
    //  serverApps.Start (Seconds (1));
    //  serverApps.Stop (Seconds (2));
    //
    //  udpClient = UdpClientHelper (SSinterfaces.GetAddress (0), 100);
    //  udpClient.SetAttribute ("MaxPackets", UintegerValue (1200));
    //  udpClient.SetAttribute ("Interval", TimeValue (Seconds (0.12)));
    //  udpClient.SetAttribute ("PacketSize", UintegerValue (1024));
    //  clientApps = udpClient.Install (ssNodes.Get (1));
    //  clientApps.Start (Seconds (1));
    //  clientApps.Stop (Seconds (2));

    Simulator::Stop(Seconds(2 + 0.1));

    IpcsClassifierRecord DlClassifierUgs(Ipv4Address("0.0.0.0"),
                                         Ipv4Mask("0.0.0.0"),
                                         SSinterfaces.GetAddress(0),
                                         Ipv4Mask("255.255.255.255"),
                                         0,
                                         65000,
                                         100,
                                         100,
                                         17,
                                         1);
    ServiceFlow DlServiceFlowUgs = wimax.CreateServiceFlow(ServiceFlow::SF_DIRECTION_DOWN,
                                                           ServiceFlow::SF_TYPE_RTPS,
                                                           DlClassifierUgs);
    IpcsClassifierRecord UlClassifierUgs(SSinterfaces.GetAddress(1),
                                         Ipv4Mask("255.255.255.255"),
                                         Ipv4Address("0.0.0.0"),
                                         Ipv4Mask("0.0.0.0"),
                                         0,
                                         65000,
                                         100,
                                         100,
                                         17,
                                         1);
    ServiceFlow UlServiceFlowUgs = wimax.CreateServiceFlow(ServiceFlow::SF_DIRECTION_UP,
                                                           ServiceFlow::SF_TYPE_RTPS,
                                                           UlClassifierUgs);
    ssDevs.Get(0)->GetObject<SubscriberStationNetDevice>()->AddServiceFlow(DlServiceFlowUgs);
    ssDevs.Get(1)->GetObject<SubscriberStationNetDevice>()->AddServiceFlow(UlServiceFlowUgs);

    Simulator::Run();
    Simulator::Destroy();
    return false;
}

void
Ns3WimaxSchedulingTestCase::DoRun()
{
    if (DoRunOnce(WimaxHelper::SCHED_TYPE_SIMPLE) == true)
    {
        return;
    }
    if (DoRunOnce(WimaxHelper::SCHED_TYPE_RTPS) == true)
    {
        return;
    }
}

/**
 * \ingroup wimax-test
 * \ingroup tests
 *
 * \brief Ns3 Wimax SF Type Test Case
 */
class Ns3WimaxSFTypeTestCase : public TestCase
{
  public:
    Ns3WimaxSFTypeTestCase();
    ~Ns3WimaxSFTypeTestCase() override;

  private:
    void DoRun() override;
    /**
     * Run once function
     * \param schedulingType the scheduling type
     * \returns true if successful
     */
    bool DoRunOnce(ServiceFlow::SchedulingType schedulingType);
};

Ns3WimaxSFTypeTestCase::Ns3WimaxSFTypeTestCase()
    : TestCase("Test the service flow scheduling types")
{
}

Ns3WimaxSFTypeTestCase::~Ns3WimaxSFTypeTestCase()
{
}

bool
Ns3WimaxSFTypeTestCase::DoRunOnce(ServiceFlow::SchedulingType schedulingType)
{
    NodeContainer ssNodes;
    NodeContainer bsNodes;
    ssNodes.Create(2);
    bsNodes.Create(1);
    WimaxHelper wimax;
    NetDeviceContainer ssDevs;
    NetDeviceContainer bsDevs;
    ssDevs = wimax.Install(ssNodes,
                           WimaxHelper::DEVICE_TYPE_SUBSCRIBER_STATION,
                           WimaxHelper::SIMPLE_PHY_TYPE_OFDM,
                           WimaxHelper::SCHED_TYPE_SIMPLE);
    bsDevs = wimax.Install(bsNodes,
                           WimaxHelper::DEVICE_TYPE_BASE_STATION,
                           WimaxHelper::SIMPLE_PHY_TYPE_OFDM,
                           WimaxHelper::SCHED_TYPE_SIMPLE);
    ssDevs.Get(0)->GetObject<SubscriberStationNetDevice>()->SetModulationType(
        WimaxPhy::MODULATION_TYPE_QAM16_12);
    ssDevs.Get(1)->GetObject<SubscriberStationNetDevice>()->SetModulationType(
        WimaxPhy::MODULATION_TYPE_QAM16_12);

    InternetStackHelper stack;
    stack.Install(bsNodes);
    stack.Install(ssNodes);

    Ipv4AddressHelper address;
    address.SetBase("10.1.1.0", "255.255.255.0");

    Ipv4InterfaceContainer SSinterfaces = address.Assign(ssDevs);
    Ipv4InterfaceContainer BSinterface = address.Assign(bsDevs);

    /*------------------------------*/
    //  UdpServerHelper udpServer;
    //  ApplicationContainer serverApps;
    //  UdpClientHelper udpClient;
    //  ApplicationContainer clientApps;
    //
    //  udpServer = UdpServerHelper (100);
    //  serverApps = udpServer.Install (ssNodes.Get (0));
    //  serverApps.Start (Seconds (1));
    //  serverApps.Stop (Seconds (2));
    //
    //  udpClient = UdpClientHelper (SSinterfaces.GetAddress (0), 100);
    //  udpClient.SetAttribute ("MaxPackets", UintegerValue (1200));
    //  udpClient.SetAttribute ("Interval", TimeValue (Seconds (0.12)));
    //  udpClient.SetAttribute ("PacketSize", UintegerValue (1024));
    //  clientApps = udpClient.Install (ssNodes.Get (1));
    //  clientApps.Start (Seconds (1));
    //  clientApps.Stop (Seconds (2));

    Simulator::Stop(Seconds(2 + 0.1));

    IpcsClassifierRecord DlClassifier(Ipv4Address("0.0.0.0"),
                                      Ipv4Mask("0.0.0.0"),
                                      SSinterfaces.GetAddress(0),
                                      Ipv4Mask("255.255.255.255"),
                                      0,
                                      65000,
                                      100,
                                      100,
                                      17,
                                      1);
    ServiceFlow DlServiceFlow =
        wimax.CreateServiceFlow(ServiceFlow::SF_DIRECTION_DOWN, schedulingType, DlClassifier);
    IpcsClassifierRecord UlClassifier(SSinterfaces.GetAddress(1),
                                      Ipv4Mask("255.255.255.255"),
                                      Ipv4Address("0.0.0.0"),
                                      Ipv4Mask("0.0.0.0"),
                                      0,
                                      65000,
                                      100,
                                      100,
                                      17,
                                      1);
    ServiceFlow UlServiceFlow =
        wimax.CreateServiceFlow(ServiceFlow::SF_DIRECTION_UP, schedulingType, UlClassifier);
    ssDevs.Get(0)->GetObject<SubscriberStationNetDevice>()->AddServiceFlow(DlServiceFlow);
    ssDevs.Get(1)->GetObject<SubscriberStationNetDevice>()->AddServiceFlow(UlServiceFlow);

    Simulator::Run();
    Simulator::Destroy();
    return false;
}

void
Ns3WimaxSFTypeTestCase::DoRun()
{
    if (DoRunOnce(ServiceFlow::SF_TYPE_UGS) == true)
    {
        return;
    }
    if (DoRunOnce(ServiceFlow::SF_TYPE_RTPS) == true)
    {
        return;
    }
    if (DoRunOnce(ServiceFlow::SF_TYPE_BE) == true)
    {
        return;
    }
}

/**
 * \ingroup wimax-test
 * \ingroup tests
 *
 * \brief Ns3 Wimax QoS Test Suite
 */
class Ns3WimaxQoSTestSuite : public TestSuite
{
  public:
    Ns3WimaxQoSTestSuite();
};

Ns3WimaxQoSTestSuite::Ns3WimaxQoSTestSuite()
    : TestSuite("wimax-qos", SYSTEM)
{
    AddTestCase(new Ns3WimaxSFTypeTestCase, TestCase::QUICK);
    AddTestCase(new Ns3WimaxSchedulingTestCase, TestCase::QUICK);
}

static Ns3WimaxQoSTestSuite ns3WimaxQoSTestSuite; ///< the test suite
