#include "BaseFunctions.h"
#include <itkImage.h>
#include <fpa/Image/Dijkstra.h>
#include <fpa/Image/Functors/Dijkstra/Gaussian.h>

// -------------------------------------------------------------------------
const unsigned int Dim = 3;
typedef short TPixel;
typedef float TScalar;

typedef itk::Image< TPixel, Dim >                                    TInputImage;
typedef itk::Image< TScalar, Dim >                                  TScalarImage;
typedef fpa::Image::Dijkstra< TInputImage, TScalarImage >                TFilter;
typedef fpa::Image::Functors::Dijkstra::Gaussian< TInputImage, TScalar > TWeight;

// -------------------------------------------------------------------------
int main( int argc, char* argv[] )
{
  // Get arguments
  if( argc < 7 )
  {
    std::cerr
      << "Usage: " << argv[ 0 ]
      << " input_image output_image output_marks alpha beta"
      << " stop_at_one_front ..."
      << std::endl;
    return( 1 );

  } // fi
  std::string input_image_filename = argv[ 1 ];
  std::string output_image_filename = argv[ 2 ];
  std::string output_marks_filename = argv[ 3 ];
  double alpha = std::atoi( argv[ 4 ] );
  double beta = std::atoi( argv[ 5 ] );
  bool stop_at_one_front = ( argv[ 6 ][ 0 ] == '1' );

  // Create image
  TInputImage::Pointer image;
  std::string err0 = fpa::tests::image::Read( image, input_image_filename );
  if( err0 != "" )
  {
    std::cerr << "Error caught: " << err0 << std::endl;
    return( 1 );

  } // fi

  // Prepare weight
  TWeight::Pointer weight = TWeight::New( );
  weight->SetAlpha( alpha );
  weight->SetBeta( beta );

  // Prepare filter
  TFilter::Pointer filter = TFilter::New( );
  filter->SetInput( image );
  filter->SetWeightFunction( weight );
  filter->SetStopAtOneFront( stop_at_one_front );

  // Get all seeds
  for( int i = 7; i < argc; i += 3 )
  {
    if( i + 1 < argc )
    {
      TInputImage::IndexType seed;
      seed[ 0 ] = std::atoi( argv[ i ] );
      seed[ 1 ] = std::atoi( argv[ i + 1 ] );
      seed[ 2 ] = std::atoi( argv[ i + 2 ] );
      filter->AddSeed( seed );

    } // fi

  } // rof

  // Execute filter
  filter->Update( );

  // Save results
  std::string err1 =
    fpa::tests::image::Write( filter->GetOutput( ), output_image_filename );
  std::string err2 =
    fpa::tests::image::Write( filter->GetMarks( ), output_marks_filename );
  if( err1 != "" ) std::cerr << "Error caught: " << err1 << std::endl;
  if( err2 != "" ) std::cerr << "Error caught: " << err2 << std::endl;

  return( 0 );
}

// eof - $RCSfile$