//                                               -*- C++ -*-
/**
 *  @file  t_NearestPointChecker_std.cxx
 *  @brief The test file of class NearestPointChecker for standard methods
 *
 *  Copyright (C) 2005-2014 Airbus-EDF-Phimeca
 *
 *  This library is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This library 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  @author schueller
 *  @date   2012-02-17 19:35:43 +0100 (Fri, 17 Feb 2012)
 */
#include "OT.hxx"
#include "OTtestcode.hxx"

using namespace OT;
using namespace OT::Test;

int main(int argc, char *argv[])
{
  TESTPREAMBLE;
  OStream fullprint(std::cout);

  try
  {

    try
    {
      // Function
      UnsignedLong sampleSize(20);
      Description input(4);
      input[0] = "x1";
      input[1] = "x2";
      input[2] = "x3";
      input[3] = "x4";
      NumericalMathFunction levelFunction(input, Description(1, "y1"), Description(1, "x1+2*x2-3*x3+4*x4"));
      LessOrEqual myOperator;
      NumericalScalar threshold(2.0);
      NumericalSample mySample(0, levelFunction.getInputDimension());
      NumericalScalar random(0.1);
      for(UnsignedLong index = 0; index < sampleSize; index++)
      {
        NumericalPoint point(levelFunction.getInputDimension());
        NumericalScalar norm(0.0);
        for(UnsignedLong coordinate = 0; coordinate < levelFunction.getInputDimension(); coordinate++)
        {
          point[coordinate] = sqrt(-2.0 * log(random));
          random = fmod(random + sqrt(2.0), 1.0);
          point[coordinate] *= cos(2.0 * atan(1.0) * random);
          norm += point[coordinate] * point[coordinate];
        }
        for(UnsignedLong coordinate = 0; coordinate < levelFunction.getInputDimension(); coordinate++)
        {
          point[coordinate] /= sqrt(norm);
        }
        mySample.add(point);
      }
      NearestPointChecker myNearestPointChecker(levelFunction, myOperator, threshold, mySample);
      for(UnsignedLong index = 0; index < sampleSize; index++)
      {
        fullprint << mySample[index] << std::endl;
      }
      myNearestPointChecker.run();
      fullprint << "myNearestPointChecker = " << myNearestPointChecker << std::endl;
    }
    catch (NoWrapperFileFoundException & ex)
    {
      throw TestFailed(ex.__repr__());
    }


  }
  catch (TestFailed & ex)
  {
    std::cerr << ex << std::endl;
    return ExitCode::Error;
  }

  return ExitCode::Success;
}
