/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2009 CTTC
 *
 * 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: Nicola Baldo <nbaldo@cttc.es>
 */

#include <ns3/object.h>
#include <ns3/spectrum-value.h>
#include <ns3/spectrum-converter.h>
#include <ns3/log.h>
#include <ns3/test.h>
#include <iostream>
#include <cmath>

#include "spectrum-test.h"

// NS_LOG_COMPONENT_DEFINE ("SpectrumValueTest");

namespace ns3 {


#define TOLERANCE 1e-6

class SpectrumValueTestCase : public TestCase
{
public:
  SpectrumValueTestCase (SpectrumValue a, SpectrumValue b, std::string name);
  virtual ~SpectrumValueTestCase ();
  virtual void DoRun (void);

private:
  bool MoreOrLessEqual (SpectrumValue x, SpectrumValue y);
  SpectrumValue m_a;
  SpectrumValue m_b;
};



SpectrumValueTestCase::SpectrumValueTestCase (SpectrumValue a, SpectrumValue b, std::string name)
  : TestCase (name),
    m_a (a),
    m_b (b)
{
}

SpectrumValueTestCase::~SpectrumValueTestCase ()
{
}


bool
SpectrumValueTestCase::MoreOrLessEqual (SpectrumValue x, SpectrumValue y)
{
  SpectrumValue z = x - y;
  return (Norm (z) < TOLERANCE);
}

void
SpectrumValueTestCase::DoRun (void)
{
  NS_TEST_ASSERT_MSG_SPECTRUM_MODEL_EQ_TOL (*m_a.GetSpectrumModel (), *m_b.GetSpectrumModel (), TOLERANCE, "");
  NS_TEST_ASSERT_MSG_SPECTRUM_VALUE_EQ_TOL (m_a, m_b, TOLERANCE, "");
}








class SpectrumValueTestSuite : public TestSuite
{
public:
  SpectrumValueTestSuite ();
};

SpectrumValueTestSuite::SpectrumValueTestSuite ()
  : TestSuite ("spectrum-value", UNIT)
{

  // NS_LOG_INFO("creating SpectrumValueTestSuite");


  std::vector<double> freqs;

  for (int i = 1; i <= 5; i++)
    {
      freqs.push_back (i);
    }

  Ptr<SpectrumModel> f = Create<SpectrumModel> (freqs);

  SpectrumValue v1 (f), v2 (f), v3 (f), v4 (f), v5 (f), v6 (f), v7 (f), v8 (f), v9 (f), v10 (f);

  double doubleValue;


  doubleValue =  1.12345600000000;

  v1[0] =  0.700539792840;
  v1[1] = -0.554277600423;
  v1[2] =  0.750309319469;
  v1[3] = -0.892299213192;
  v1[4] =  0.987045234885;

  v2[0] =  0.870441628737;
  v2[1] =  0.271419263880;
  v2[2] =  0.451557288312;
  v2[3] =  0.968992859395;
  v2[4] = -0.929186654705;

  v3[0] =  1.570981421577;
  v3[1] = -0.282858336543;
  v3[2] =  1.201866607781;
  v3[3] =  0.076693646203;
  v3[4] =  0.057858580180;

  v4[0] = -0.169901835897;
  v4[1] = -0.825696864302;
  v4[2] =  0.298752031158;
  v4[3] = -1.861292072588;
  v4[4] =  1.916231889590;

  v5[0] =  0.609778998275;
  v5[1] = -0.150441618292;
  v5[2] =  0.338807641695;
  v5[3] = -0.864631566028;
  v5[4] = -0.917149259846;

  v6[0] =  0.804809615846;
  v6[1] = -2.042145397125;
  v6[2] =  1.661603829438;
  v6[3] = -0.920852207053;
  v6[4] = -1.062267984465;

  v7[0] =  1.823995792840;
  v7[1] =  0.569178399577;
  v7[2] =  1.873765319469;
  v7[3] =  0.231156786808;
  v7[4] =  2.110501234885;

  v8[0] = -0.422916207160;
  v8[1] = -1.677733600423;
  v8[2] = -0.373146680531;
  v8[3] = -2.015755213192;
  v8[4] = -0.136410765115;

  v9[0] =  0.787025633505;
  v9[1] = -0.622706495860;
  v9[2] =  0.842939506814;
  v9[3] = -1.002458904856;
  v9[4] =  1.108901891403;

  v10[0] =  0.623557836569;
  v10[1] = -0.493368320987;
  v10[2] =  0.667858215604;
  v10[3] = -0.794244913190;
  v10[4] =  0.878579343459;

  SpectrumValue tv3 (f), tv4 (f), tv5 (f), tv6 (f);

  tv3 = v1 + v2;
  tv4 = v1 - v2;
  tv5 = v1 * v2;
  tv6 = v1 / v2;


  AddTestCase (new SpectrumValueTestCase (tv3, v3, "tv3 = v1 + v2"));
  AddTestCase (new SpectrumValueTestCase (tv4, v4, "tv4 = v1 - v2"));
  AddTestCase (new SpectrumValueTestCase (tv5, v5, "tv5 = v1 * v2"));
  AddTestCase (new SpectrumValueTestCase (tv6, v6, "tv6 = v1 div v2"));

  // std::cerr << v6 << std::endl;
  // std::cerr << tv6 << std::endl;


  tv3 = v1;
  tv4 = v1;
  tv5 = v1;
  tv6 = v1;

  tv3 += v2;
  tv4 -= v2;
  tv5 *= v2;
  tv6 /= v2;

  AddTestCase (new SpectrumValueTestCase (tv3, v3, "tv3 += v2"));
  AddTestCase (new SpectrumValueTestCase (tv4, v4, "tv4 -= v2"));
  AddTestCase (new SpectrumValueTestCase (tv5, v5, "tv5 *= v2"));
  AddTestCase (new SpectrumValueTestCase (tv6, v6, "tv6 div= v2"));

  SpectrumValue tv7a (f), tv8a (f), tv9a (f), tv10a (f);
  tv7a = v1 + doubleValue;
  tv8a = v1 - doubleValue;
  tv9a = v1 * doubleValue;
  tv10a = v1 / doubleValue;
  AddTestCase (new SpectrumValueTestCase (tv7a, v7, "tv7a = v1 + doubleValue"));
  AddTestCase (new SpectrumValueTestCase (tv8a, v8, "tv8a = v1 - doubleValue"));
  AddTestCase (new SpectrumValueTestCase (tv9a, v9, "tv9a = v1 * doubleValue"));
  AddTestCase (new SpectrumValueTestCase (tv10a, v10, "tv10a = v1 div doubleValue"));

  SpectrumValue tv7b (f), tv8b (f), tv9b (f), tv10b (f);
  tv7b =  doubleValue + v1;
  tv8b =  doubleValue - v1;
  tv9b =  doubleValue * v1;
  tv10b = doubleValue / v1;
  AddTestCase (new SpectrumValueTestCase (tv7b, v7, "tv7b =  doubleValue + v1"));
  AddTestCase (new SpectrumValueTestCase (tv8b, v8, "tv8b =  doubleValue - v1"));
  AddTestCase (new SpectrumValueTestCase (tv9b, v9, "tv9b =  doubleValue * v1"));
  AddTestCase (new SpectrumValueTestCase (tv10b, v10, "tv10b = doubleValue div v1"));





  SpectrumValue v1ls3 (f), v1rs3 (f);
  SpectrumValue tv1ls3 (f), tv1rs3 (f);

  v1ls3[0] = v1[3];
  v1ls3[1] = v1[4];
  tv1ls3 = v1 << 3;
  AddTestCase (new SpectrumValueTestCase (tv1ls3, v1ls3, "tv1ls3 = v1 << 3"));


  v1rs3[3] = v1[0];
  v1rs3[4] = v1[1];
  tv1rs3 = v1 >> 3;
  AddTestCase (new SpectrumValueTestCase (tv1rs3, v1rs3, "tv1rs3 = v1 >> 3"));


}







class SpectrumConverterTestSuite : public TestSuite
{
public:
  SpectrumConverterTestSuite ();
};

SpectrumConverterTestSuite::SpectrumConverterTestSuite ()
  : TestSuite ("spectrum-converter", UNIT)
{
  double f;


  std::vector<double> f1;
  for (f = 3; f <= 7; f += 2)
    {
      f1.push_back (f);
    }
  Ptr<SpectrumModel> sof1 = Create<SpectrumModel> (f1);



  std::vector<double> f2;
  for (f = 2; f <= 8; f += 1)
    {
      f2.push_back (f);
    }
  Ptr<SpectrumModel> sof2 = Create<SpectrumModel> (f2);



  Ptr<SpectrumValue> res;


  Ptr<SpectrumValue> v1 = Create<SpectrumValue> (sof1);
  *v1 = 4;
  SpectrumConverter c12 (sof1, sof2);
  res = c12.Convert (v1);
  SpectrumValue t12 (sof2);
  t12 = 4;
  t12[0] = 2;
  t12[6] = 2;
//   NS_LOG_LOGIC(*v1);
//   NS_LOG_LOGIC(t12);
//   NS_LOG_LOGIC(*res);

  AddTestCase (new SpectrumValueTestCase (t12, *res, ""));
  // TEST_ASSERT(MoreOrLessEqual(t12, *res));

  Ptr<SpectrumValue> v2a = Create<SpectrumValue> (sof2);
  *v2a = -2;
  SpectrumConverter c21 (sof2, sof1);
  res = c21.Convert (v2a);
  SpectrumValue t21a (sof1);
  t21a = -2;
//   NS_LOG_LOGIC(*v2a);
//   NS_LOG_LOGIC(t21a);
//   NS_LOG_LOGIC(*res);
  AddTestCase (new SpectrumValueTestCase (t21a, *res, ""));
  // TEST_ASSERT(MoreOrLessEqual(t21a, *res));

  Ptr<SpectrumValue> v2b = Create<SpectrumValue> (sof2);
  (*v2b)[0] = 3;
  (*v2b)[1] = 5;
  (*v2b)[2] = 1;
  (*v2b)[3] = 2;
  (*v2b)[4] = 4;
  (*v2b)[5] = 6;
  (*v2b)[6] = 3;
  res = c21.Convert (v2b);
  SpectrumValue t21b (sof1);
  t21b[0] = 3 * 0.25 + 5 * 0.5 + 1 * 0.25;
  t21b[1] = 1 * 0.25 + 2 * 0.5 + 4 * 0.25;
  t21b[2] = 4 * 0.25 + 6 * 0.5 + 3 * 0.25;
//   NS_LOG_LOGIC(*v2b);
//   NS_LOG_LOGIC(t21b);
//   NS_LOG_LOGIC(*res);
  AddTestCase (new SpectrumValueTestCase (t21b, *res, ""));


}






// static instance of test suites
static SpectrumValueTestSuite g_SpectrumValueTestSuite;
static SpectrumConverterTestSuite g_SpectrumConverterTestSuite;



} // namespace ns3