/*
 * 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 "otbMorphologicalClosingProfileFilter.h"
#include "itkBinaryBallStructuringElement.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbImage.h"

#include "itkMacro.h"

int otbMorphologicalClosingProfileFilter(int itkNotUsed(argc), char* argv[])
{
  const char*        inputFilename        = argv[1];
  const char*        outputFilenamePrefix = argv[2];
  const char*        outputFilenameSuffix = argv[3];
  const unsigned int profileSize          = atoi(argv[4]);
  const unsigned int initialValue         = atoi(argv[5]);
  const unsigned int step                 = atoi(argv[5]);

  const unsigned int Dimension = 2;
  typedef double     InputPixelType;
  typedef double     OutputPixelType;

  typedef otb::Image<InputPixelType, Dimension>  InputImageType;
  typedef otb::Image<OutputPixelType, Dimension> OutputImageType;

  typedef otb::ImageFileReader<InputImageType>  ReaderType;
  typedef otb::ImageFileWriter<OutputImageType> WriterType;

  typedef itk::BinaryBallStructuringElement<InputPixelType, Dimension> StructuringElementType;
  typedef otb::MorphologicalClosingProfileFilter<InputImageType, InputImageType, StructuringElementType> ClosingProfileFilterType;

  // Reading input image
  ReaderType::Pointer reader = ReaderType::New();
  reader->SetFileName(inputFilename);

  // Instantiation
  ClosingProfileFilterType::Pointer profileFilter = ClosingProfileFilterType::New();
  profileFilter->SetInput(reader->GetOutput());
  profileFilter->SetProfileSize(profileSize);
  profileFilter->SetInitialValue(initialValue);
  profileFilter->SetStep(step);
  profileFilter->Update();

  WriterType::Pointer writer;

  // std::stringstream oss;
  std::ostringstream oss;
  // Writing the results images
  for (unsigned int i = 1; i <= profileSize; ++i)
  {
    writer = WriterType::New();
    oss << outputFilenamePrefix << i << "." << outputFilenameSuffix;
    writer->SetInput(profileFilter->GetOutput()->GetNthElement(i - 1));
    writer->SetFileName(oss.str());
    writer->Update();
    oss.str("");
  }

  return EXIT_SUCCESS;
}
