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

#include "TROOT.h"
#include "TFile.h"
#include "TH1D.h"

#include "JDetector/JPMTSimulator.hh"
#include "JDetector/JPMTDefaultSimulator.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to test generation of transit times using PMT simulator.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  string         outputFile;
  int            numberOfHits;
  JPMTParameters parameters;
  int            debug;

  try {

    JProperties properties = parameters.getProperties();

    JParser<> zap("Example program to test generation of transit times using PMT simulator.");

    zap['o'] = make_field(outputFile)       = "pmt.root";
    zap['n'] = make_field(numberOfHits)     = 10000;
    zap['P'] = make_field(properties)       = JPARSER::initialised();
    zap['d'] = make_field(debug)            = 0;

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


  if (debug >= JEEP::debug_t) {
    cout << "PMT parameters:" << endl;
    cout << parameters.getProperties(JEquationParameters("=", "\n", "", "")) << endl;
  }

  const JPMTIdentifier pmt(1,0);
  const JCalibration   calibration;
  const JStatus        status;

  const JPMTDefaultSimulator simulator(parameters, pmt);


  TFile out(outputFile.c_str(), "recreate");
  
  JPMTData<JPMTSignal> input;
  JPMTData<JPMTPulse>  output;
  

  TH1D h1("tts", NULL,  120, -20.0, +100.0);

  for (int i = 0; i != numberOfHits; ++i) {
    
    const double t_ns = 0.0;
    const int    npe  = 1;
    const double W    = 1.0 / (double) numberOfHits;
  
    input .clear();
    output.clear();
    
    input.push_back(JPMTSignal(t_ns, npe));
      
    simulator.processHits(pmt, calibration, status, input, output);

    for (JPMTData<JPMTPulse>::const_iterator hit = output.begin(); hit != output.end(); ++hit) {
      h1.Fill(hit->t_ns, W);
    }
  }

  out.Write();
  out.Close();
}