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//
// Author: Mathieu Karamitros (kara (AT) cenbg . in2p3 . fr) 
//
// WARNING : This class is released as a prototype.
// It might strongly evolve or even disapear in the next releases.
//
// History:
// -----------
// 10 Oct 2011 M.Karamitros created
//
// -------------------------------------------------------------------

#ifndef G4MOLECULARDECAYPROCESS_HH
#define G4MOLECULARDECAYPROCESS_HH

#include "G4VITRestProcess.hh"
#include <map>

class G4ParticleChange;
class G4VMolecularDecayDisplacer;
class G4MoleculeDefinition;

/**
  * G4DNAMolecularDecay should be called only for molecules.
  * It will dissociate the molecules using the decay associated to
  * this molecule and if a displacement scheme has been registered,
  * it will place the products to the expected position.
  */

class G4DNAMolecularDecay: public G4VITRestProcess
{
public:
    G4DNAMolecularDecay(const G4String& processName = "DNAMolecularDecay",
                            G4ProcessType type = fDecay);

    virtual ~G4DNAMolecularDecay();

    G4IT_ADD_CLONE(G4VITProcess, G4DNAMolecularDecay)

    virtual G4bool IsApplicable(const G4ParticleDefinition&);

    inline G4double AtRestGetPhysicalInteractionLength(
        const G4Track& track,
        G4ForceCondition* condition
        );
    inline G4VParticleChange* AtRestDoIt(
        const G4Track& track,
        const G4Step& step
        );

    inline void SetVerbose(G4int);

    //__________________________________________________________________
    void SetDecayDisplacer(const G4ParticleDefinition*, G4VMolecularDecayDisplacer*);
    G4VMolecularDecayDisplacer* GetDecayDisplacer(const G4ParticleDefinition*);

protected:
    //__________________________________________________________________
    // Make the decay
    virtual G4VParticleChange* DecayIt(const G4Track& ,const G4Step&);
    virtual G4double GetMeanLifeTime(const G4Track&,G4ForceCondition*);

private:
    G4DNAMolecularDecay();
    G4DNAMolecularDecay(const G4DNAMolecularDecay &right);
    G4DNAMolecularDecay & operator=(const G4DNAMolecularDecay &right);

private:
    G4bool fDecayAtFixedTime ;

    typedef std::map<const G4ParticleDefinition*, G4VMolecularDecayDisplacer*>  DecayDisplacementMap;
    DecayDisplacementMap fDecayDisplacementMap;

    G4int fVerbose;
};

inline void G4DNAMolecularDecay::SetVerbose(G4int verbose)
{
    fVerbose = verbose ;
}

inline G4double G4DNAMolecularDecay::AtRestGetPhysicalInteractionLength(
    const G4Track& track,
    G4ForceCondition* condition)
{
    if(fDecayAtFixedTime)
    {
        return GetMeanLifeTime(track, condition);
    }

    return G4VITRestProcess::AtRestGetPhysicalInteractionLength(track, condition);
}

inline G4VParticleChange* G4DNAMolecularDecay::AtRestDoIt(
    const G4Track& track,
    const G4Step& step
    )
{
    ClearNumberOfInteractionLengthLeft();
    ClearInteractionTimeLeft();
    return DecayIt(track, step);
}


#endif /* G4MOLECULARDECAYPROCESS_HH */