/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkImageIOBase.h"
#include "itkVTKImageIO.h"
#include "itkTestingMacros.h"

template <class TImage>
int
ReadImage(const std::string & fileName, typename TImage::Pointer image)
{

  using IOType = itk::VTKImageIO;
  auto vtkIO = IOType::New();

  if (!vtkIO->CanReadFile(fileName.c_str()))
  {
    return EXIT_FAILURE;
  }

  using ImageType = TImage;
  using ImageReaderType = itk::ImageFileReader<ImageType>;

  auto reader = ImageReaderType::New();
  reader->SetImageIO(vtkIO);
  reader->SetFileName(fileName);

  try
  {
    reader->Update();
  }
  catch (const itk::ExceptionObject & e)
  {
    std::cerr << e.what() << std::endl;
    return EXIT_FAILURE;
  }

  image->Graft(reader->GetOutput());

  return EXIT_SUCCESS;
}

int
itkVTKImageIOFileReadTest(int argc, char * argv[])
{
  if (argc != 3)
  {
    std::cerr << "Usage: " << std::endl;
    std::cerr << itkNameOfTestExecutableMacro(argv);
    std::cerr << "matrix.vtk ironProt.vtk";
    std::cerr << std::endl;
    return EXIT_FAILURE;
  }

  // Read matrix.vtk file
  using matrixImageType = itk::Image<float, 2>;
  auto matriximage = matrixImageType::New();

  if (ReadImage<matrixImageType>(argv[1], matriximage) == EXIT_FAILURE)
  {
    return EXIT_FAILURE;
  }

  std::cout << matriximage << std::endl;

  // Read ironProt.vtk file
  using ironProtImageType = itk::Image<unsigned char, 3>;
  auto ironProtimage = ironProtImageType::New();

  if (ReadImage<ironProtImageType>(argv[2], ironProtimage) == EXIT_FAILURE)
  {
    return EXIT_FAILURE;
  }

  std::cout << ironProtimage << std::endl;

  return EXIT_SUCCESS;
}
