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

#include "TROOT.h"
#include "TFile.h"
#include "TH2D.h"

#include "JAcoustics/JUNESCO.hh"

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


/**
 * \file
 *
 * Example program to plot UNESCO sound velocity.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  string   outputFile;
  double   D;
  double   S;
  double   T;
  int      debug;

  try {

    JParser<> zap("Example program to plot UNESCO sound velocity.");

    zap['o'] = make_field(outputFile);
    zap['D'] = make_field(D,     "Depth [m]");
    zap['S'] = make_field(S,     "Salinity [ppk]")    = 25.0;
    zap['T'] = make_field(T,     "Temperature [C]")   = 14.3;
    zap['d'] = make_field(debug)                      = 2;

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

  
  TFile out(outputFile.c_str(), "recreate");

  TH1D h1("h1", NULL, 1000, 0.0, 3500);
  TH2D h2("h2", NULL, 1000, 10.0, 20.0, 1000, 25.0, 40.0);

  for (Int_t ix = 1; ix <= h1.GetXaxis()->GetNbins(); ++ix) {

    const Double_t D  = h1.GetXaxis()->GetBinCenter(ix);
    const double   V  = getVelocity(D, S, T);
      
    h1.SetBinContent(ix, V);
  }

  for (Int_t ix = 1; ix <= h2.GetXaxis()->GetNbins(); ++ix) {
    for (Int_t iy = 1; iy <= h2.GetXaxis()->GetNbins(); ++iy) {

      const Double_t T  = h2.GetXaxis()->GetBinCenter(ix);
      const Double_t S  = h2.GetYaxis()->GetBinCenter(iy);

      const double   V  = getVelocity(D, S, T);
      //const double vs  = getVelocity(D, S, T)  -  getVelocity(D + 1, S, T);
      
      h2.SetBinContent(ix, iy, V);
    }
  }

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