/*
 * Copyright (C) 2005-2017 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 "otbSarDeburstImageFilter.h"
#include "otbImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"

typedef otb::Image<unsigned short>            ImageType;
typedef otb::ImageFileReader<ImageType>       ReaderType;
typedef otb::ImageFileWriter<ImageType>       WriterType;
typedef otb::SarDeburstImageFilter<ImageType> DeburstFilterType;

int otbSarDeburstFilterTest(int itkNotUsed(argc), char * argv[])
{
  ReaderType::Pointer reader = ReaderType::New();
  reader->SetFileName(argv[1]);

  DeburstFilterType::Pointer filter = DeburstFilterType::New();
  filter->SetInput(reader->GetOutput());

  WriterType::Pointer writer = WriterType::New();
  writer->SetInput(filter->GetOutput());
  writer->SetFileName(argv[2]);
  writer->Update();

  // check that there is now a single burst in data
  reader = ReaderType::New();
  reader->SetFileName(argv[2]);
  reader->UpdateOutputInformation();

  unsigned int nb_bursts = atoi(reader->GetOutput()->GetImageKeywordlist().GetMetadataByKey("support_data.geom.bursts.number").c_str());

  if(nb_bursts != 1)
    {
    std::cerr<<"Error: more than 1 burst ("<<nb_bursts<<" bursts) found in output metadata."<<std::endl;
    }
  else
    {
    std::cout<<"Metadata have a single burst as expected."<<std::endl;
    }

  return EXIT_SUCCESS;
}

