/*=========================================================================
 *
 *  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 <iostream>
#include "itkCropImageFilter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"

int
itkCropImageFilterTest(int, char *[])
{

  // Define the dimension of the images
  constexpr unsigned int ImageDimension = 2;

  // Declare the pixel types of the images
  using PixelType = short;

  // Declare the types of the images
  using ImageType = itk::Image<PixelType, ImageDimension>;

  auto inputImage = ImageType::New();

  // Fill in the image
  ImageType::IndexType  index = { { 0, 0 } };
  ImageType::SizeType   size = { { 8, 12 } };
  ImageType::RegionType region;

  region.SetSize(size);
  region.SetIndex(index);
  inputImage->SetLargestPossibleRegion(region);
  inputImage->SetBufferedRegion(region);
  inputImage->Allocate();

  itk::ImageRegionIterator<ImageType> iterator(inputImage, region);

  short i = 0;
  for (; !iterator.IsAtEnd(); ++iterator, ++i)
  {
    iterator.Set(i);
  }

  // Create the filter
  itk::CropImageFilter<ImageType, ImageType>::Pointer cropFilter = itk::CropImageFilter<ImageType, ImageType>::New();

  ITK_EXERCISE_BASIC_OBJECT_METHODS(cropFilter, CropImageFilter, ExtractImageFilter);

  itk::SimpleFilterWatcher watcher(cropFilter);

  cropFilter->SetInput(inputImage);

  ImageType::RegionType requestedRegion;

  ImageType::SizeType extractSize = { { 8, 12 } };
  extractSize[0] = 1;
  extractSize[1] = 1;

  cropFilter->SetBoundaryCropSize(extractSize);

  cropFilter->SetUpperBoundaryCropSize(extractSize);
  ITK_TEST_SET_GET_VALUE(extractSize, cropFilter->GetUpperBoundaryCropSize());

  cropFilter->SetLowerBoundaryCropSize(extractSize);
  ITK_TEST_SET_GET_VALUE(extractSize, cropFilter->GetLowerBoundaryCropSize());

  cropFilter->UpdateLargestPossibleRegion();

  requestedRegion = cropFilter->GetOutput()->GetRequestedRegion();

  if (cropFilter->GetOutput()->GetLargestPossibleRegion().GetSize()[0] != 6 ||
      cropFilter->GetOutput()->GetLargestPossibleRegion().GetSize()[1] != 10)
  {
    return EXIT_FAILURE;
  }

  if (cropFilter->GetOutput()->GetLargestPossibleRegion().GetIndex()[0] != 1 ||
      cropFilter->GetOutput()->GetLargestPossibleRegion().GetIndex()[1] != 1)
  {
    return EXIT_FAILURE;
  }

  return EXIT_SUCCESS;
}
