#include <iostream>
#include <string>
#include <vector>
#include "eff_utils/RawEffTool.hpp"
#include "eff_utils/EffInfo.hpp"
#include "eff_utils/EffVal.hpp"

using namespace eff_utils;

int main()
{
  try {
  std::cout << "UseRawTool begins" << std::endl;
  // first set up the request
  EffInfo request;
  request.ObjType("EM");
  request.ObjQuality("Tight");
  request.ObjVersion(8);
  request.EffType("Binned");
  request.EffVersion(0);
  request.EffName("gaus");
  
  std::vector< std::string > vars;
  vars.push_back("eta");
  
  request.EffVarNames( vars );
  
  //
  
  RawEffTool effTool( request );
  // make sure it found the file
  if( ! effTool.isValid()) {
    std::cout << "Is not valid!" << std::endl;
    return 1;
  }
  // get efficiency info
  const EffInfo info = effTool.Info();
  // figure out the variable names
  int nvars = info.EffNVars();
  std::vector< std::string > varNames;
  varNames = info.EffVarNames();
  if( nvars != 1) {// I happen to know this should be 1 ok...
    std::cout << "NVars != 1" << std::endl;
    return 2;
  }

  if( nvars != varNames.size() )
    {
      std::cout << " NVars not consistent" << std::endl;
      return 3;
    }
  std::string varName = varNames[0];
  std::cout << " Var Name is : " << varName << std::endl;
  // all the stuff before here can be done at initialisation time
  // in teh event loop the only thing needed to be done is the following
  // now go get an efficiency value
  std::vector< float > inputs;
  inputs.resize(1);
  
  inputs[0] = 0.8;
  EffVal val = effTool.Eff( inputs );
  float v = val.val;
  float el = val.elo;
  float eh = val.ehi;
  
  std::cout << " x = 0.8, Eff = " << v << " + " << eh << " - " << el << std::endl;
  std::cout << "UseRawTool ends " << std::endl;
  }
  catch( const EffException & error) {
    std::cout << error._message << std::endl;
  }
  catch(...) {
    std::cout << " Some kind of exception was thrown!" << std::endl;
  }
    return 0;
}