#ifndef __bbUtilitiesGreyLevel_h_INCLUDED__
#define __bbUtilitiesGreyLevel_h_INCLUDED__
#include "bbtkAtomicBlackBox.h"
#include "iostream"

#include "vtkMetaImageReader.h"
#include "vtkImageData.h"

namespace bbUtilities
{

class /*BBTK_EXPORT*/ GreyLevel
 : 
   public bbtk::AtomicBlackBox
{
//  BBTK_USER_BLACK_BOX_INTERFACE(GreyLevel,bbtk::AtomicBlackBox);
  BBTK_BLACK_BOX_INTERFACE(GreyLevel,bbtk::AtomicBlackBox);

//==================================================================
  BBTK_DECLARE_INPUT(In,double);
  BBTK_DECLARE_INPUT(DSDirectoy,std::string);
  BBTK_DECLARE_INPUT(FileNameManualPoints,std::string);  
  BBTK_DECLARE_OUTPUT(Out,double);
  BBTK_PROCESS(Process);
  void Process();
  std::string getNumber(int num);
  void getPoint(std::string fileName, double* x, double* y, double* z);
private:
  vtkImageData* img;
  vtkMetaImageReader* mir;
};

BBTK_BEGIN_DESCRIBE_BLACK_BOX(GreyLevel,bbtk::AtomicBlackBox);
BBTK_NAME("GreyLevel");
BBTK_AUTHOR("car-prie@uniandes.edu.co");
BBTK_DESCRIPTION("Reads the level of grey in an image given a point in a predefined directoy structure (see CAT08 directoy structure, image and file with X,Y,Z coordinates)");
BBTK_CATEGORY("__CATEGORY__");
BBTK_INPUT(GreyLevel,DSDirectoy,"Directoy that contains the directory structre DatasetXX/imageXX.mhd and DatasetXX/vesselN",std::string,"");
BBTK_INPUT(GreyLevel,FileNameManualPoints,"File name of points in the directoy DatasetXX/vesselN/FILENAME.txt",std::string,"");
BBTK_OUTPUT(GreyLevel,Out,"First output",double,"");
BBTK_END_DESCRIBE_BLACK_BOX(GreyLevel);
}
// EO namespace bbUtilities

#endif // __bbUtilitiesGreyLevel_h_INCLUDED__