/**
   \defgroup has_tools Inclined Air Showers
   \ingroup tls

   \file


   \author Javier Gonzalez
   \date 24 Jan 2008
*/

#ifndef _tls_EMComponent_h_
#define _tls_EMComponent_h_

#include <tls/VEMComponent.h>

#include <boost/shared_ptr.hpp>

namespace utl { class Branch; }

namespace tls {

  /**
     \class EMComponent
     \brief Facade for any instance of EMComponent.

     This class encapsulates multiple implementations of
     parametrizations of the electromagnetic component. The specific
     model that is used is specified by the name of the utl::Branch
     that gets passed to the constructor. The currently available
     models are:
     <ul>
     <li> SimpleEMComponent </li>
     <li> EMComponentIVR </li>
     <li> ZeroEMComponent </li>
     </ul>

     \author Javier Gonzalez
     \date 24 Jan 2008
     \ingroup has_tools
   */

  class EMComponent {
  public:

    EMComponent(utl::Branch branch);
    virtual ~EMComponent() {};

    /// Ratio between electromagnetic and muon signal
    inline
    double SignalRatio(double x, double y, double rmu, double theta, double phi)
    {
      return fEMComponent->SignalRatio(x,y,rmu,theta,phi);
    }

    /// Ratio between electromagnetic and total signal
    inline
    double TotalSignalFraction(double x, double y, double rmu, double theta, double phi)
    {
      const double emRatio = fEMComponent->SignalRatio(x,y,rmu,theta,phi);
      return emRatio > 0.0 ? 1.0 - 1.0/(1.0+emRatio) : 0.0;
    }

    virtual double GetThetaMax(){return fEMComponent->GetThetaMax();}

    virtual double GetThetaMin(){return fEMComponent->GetThetaMin();}

  private:

    boost::shared_ptr<tls::VEMComponent> fEMComponent;

  };

} // tls


#endif // _tls_EMComponent_h_

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