/*
 * Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * 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
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 "otbImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"

// TODO change the bug tracker url
// http://bugs.orfeo-toolbox.org/view.php?id=406

int main(int itkNotUsed(argc), char* argv[])
{
  char* filename = argv[1];

  typedef unsigned long PixelType;
  typedef otb::Image<PixelType, 2> ImageType;
  typedef otb::ImageFileReader<ImageType> ReaderType;
  typedef otb::ImageFileWriter<ImageType> WriterType;

  // check for input images
  ImageType::Pointer  image  = ImageType::New();
  WriterType::Pointer writer = WriterType::New();
  ReaderType::Pointer reader = ReaderType::New();

  ImageType::IndexType start;

  start[0] = 0; // first index on X
  start[1] = 0; // first index on Y

  ImageType::SizeType size;

  size[0] = 10; // size along X
  size[1] = 10;

  ImageType::RegionType region;

  region.SetSize(size);
  region.SetIndex(start);

  image->SetRegions(region);
  image->Allocate();

  ImageType::PixelType initialValue = 0;
  image->FillBuffer(initialValue);

  ImageType::IndexType pixelIndex;

  pixelIndex[0] = 1; // x position
  pixelIndex[1] = 1;

  image->SetPixel(pixelIndex, initialValue + 1);

  writer->SetInput(image);
  writer->SetFileName(filename);
  writer->Update();

  reader->SetFileName(filename);
  reader->Update();

  ImageType::RegionType outputRegion;
  outputRegion = reader->GetOutput()->GetLargestPossibleRegion();

  ImageType::SizeType outputSize;
  outputSize = outputRegion.GetSize();

  if (reader->GetOutput()->GetPixel(pixelIndex) != initialValue + 1)
  {
    return EXIT_FAILURE;
  }
  else
  {
    return EXIT_SUCCESS;
  }
}
