#include <string>
#include <iostream>
#include <fstream>
#include <iomanip>

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
#include "JTools/JFunction1D_t.hh"
#include "JTools/JFunctionalMap_t.hh"
#include "JPhysics/JPDFTable.hh"


/**
 * \file
 * Auxiliary program to apply the transition time spread (TTS) of the PMTs to interpolation tables of PDFs.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;

  string              inputFile;
  string              outputFile;
  int                 numberOfPoints;
  double              epsilon;
  double              TTS;
  int                 debug;

  try {

    JParser<> zap("Auxiliary program to apply the transition time spread (TTS) of the PMTs to interpolation tables of PDFs.");

    zap['f'] = make_field(inputFile);
    zap['o'] = make_field(outputFile);
    zap['n'] = make_field(numberOfPoints) = 25;
    zap['e'] = make_field(epsilon)        = 1.0e-10;
    zap['T'] = make_field(TTS)            = 0.0;         // [ns]
    zap['d'] = make_field(debug)          = 0;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  using namespace JPP;

  typedef JSplineFunction1D_t                                     JFunction1D_t;
  typedef JMAPLIST<JPolint1FunctionalMap,
		   JPolint1FunctionalGridMap,
		   JPolint1FunctionalGridMap>::maplist            JMapList_t;
  typedef JPDFTable<JFunction1D_t, JMapList_t>                    JPDF_t;

  JPDF_t pdf;


  try {

    NOTICE("loading input from file " << inputFile << "... " << flush);

    pdf.load(inputFile.c_str());

    NOTICE("OK" << endl);
  }
  catch(const JException& error) {
    FATAL(error.what() << endl);
  }


  pdf.setExceptionHandler(new JFunction1D_t::JDefaultResult(0.0));

  NOTICE("Gauss-Hermite integration... " << flush);

  pdf.blur(TTS, numberOfPoints, epsilon);

  NOTICE("OK" << endl);


  NOTICE("storing output to file " << outputFile << "... " << flush);

  pdf.store(outputFile.c_str());
    
  NOTICE("OK" << endl);
}