#ifndef __bbstdMagicBox_h_INCLUDED_H__
#define __bbstdMagicBox_h_INCLUDED_H__

#include "bbtkUserBlackBox.h"

namespace bbstd
{
  //==================================================================
  class MagicBox
    : 
    public bbtk::UserBlackBox
  {
    BBTK_USER_BLACK_BOX_INTERFACE(MagicBox,bbtk::UserBlackBox);
       BBTK_DECLARE_INPUT(In,bbtk::Data);
       BBTK_DECLARE_OUTPUT(Out,bbtk::Data);
    BBTK_PROCESS(DoProcess);
    void DoProcess() { bbSetOutputOut( bbGetInputIn() ); }
    
  protected:
    //    virtual void bbUserConstructor();
    
  };
  //==================================================================
  
  
  //==================================================================
  // We have to create a particular SetFunctor for MagicBox because
  // its input is of type bbtk::Data (i.e. any) and :
  // 1) an any cannot store an any (construction with an any invokes the copy constr.)
  // 2) we cannot invoke the Set method with the content of the any because 
  //   it expects an any 
  // hence the method Set **MUST NOT** extract the content of the Data 
  // prior to invoking the set method
  class MagicBoxSetFunctor : public bbtk::UserBlackBoxSetFunctor
  {
  public:
    /// Type of pointer on a UBB::Set method  
    typedef void (MagicBox::*SetMethodPointerType)(bbtk::Data);
    
    /// Construction with the pointer on the Set method
    MagicBoxSetFunctor(SetMethodPointerType s) :
      mSetMethodPointer(s) 
    {}
    
    /// Concrete application of the Set method of object o
    void Set(bbtk::UserBlackBox* o, const bbtk::Data& d)
    { 
      bbtkDebugMessage("Data",9,"MagicBoxSetfunctor::Set()"<<std::endl);
      (((MagicBox*)o)->*mSetMethodPointer)(d);
    }
    
    /// 
    bbtk::TypeInfo GetTypeInfo() const { return typeid(bbtk::Data); }
    std::string GetTypeName() const { return bbtk::TypeName<bbtk::Data>(); }
    std::string GetHumanTypeName() const { return bbtk::HumanTypeName<bbtk::Data>(); }
    bool IsPointerType() const { return false; }
    void BruteForceSetPointer(bbtk::UserBlackBox*, void*) {}
  private:
    ///  Pointer on the Set method  
    SetMethodPointerType mSetMethodPointer;
  };
  //===========================================================================


  BBTK_BEGIN_DESCRIBE_BLACK_BOX(MagicBox,bbtk::UserBlackBox);
  BBTK_NAME("MagicBox");
  BBTK_AUTHOR("laurent.guigues@creatis.insa-lyon.fr");
  BBTK_CATEGORY("adaptor");
  BBTK_DESCRIPTION("MagicBox");
     AddInputDescriptor(new bbtk::UserBlackBoxInputDescriptor
		     ("In","Input data",
		      new bbtk::UserBlackBoxTGetFunctor<MagicBox,bbtk::Data,bbtk::Data>
		      (&MagicBox::bbGetInputIn),
		      new MagicBoxSetFunctor (&MagicBox::bbSetInputIn) ) );
     AddOutputDescriptor(new bbtk::UserBlackBoxOutputDescriptor
		      ("Out","Output data",
		       new bbtk::UserBlackBoxTGetFunctor<MagicBox,bbtk::Data,bbtk::Data>
		       (&MagicBox::bbGetOutputOut),
		       new MagicBoxSetFunctor (&MagicBox::bbSetOutputOut) ) );
  BBTK_END_DESCRIBE_BLACK_BOX(MagicBox);
}
// namespace bbstd

#endif // __bbstdMagicBox_h_INCLUDED_H__