//=============================================================================
//
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//
//  Copyright 2018 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
//  Copyright 2018 UT-Battelle, LLC.
//  Copyright 2018 Los Alamos National Security.
//
//  Under the terms of Contract DE-NA0003525 with NTESS,
//  the U.S. Government retains certain rights in this software.
//  Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
//  Laboratory (LANL), the U.S. Government retains certain rights in
//  this software.
//
//=============================================================================

#include <vtkm/filter/internal/CreateResult.h>
#include <vtkm/worklet/DispatcherMapField.h>

namespace vtkm
{
namespace filter
{
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT vtkm::cont::DataSet CellSetConnectivity::DoExecute(
  const vtkm::cont::DataSet& input,
  const vtkm::cont::ArrayHandle<T, StorageType>& field,
  const vtkm::filter::FieldMetadata& fieldMetadata,
  const vtkm::filter::PolicyBase<DerivedPolicy>&)
{
  vtkm::cont::ArrayHandle<vtkm::Id> component;
  // TODO: is there such thing as Active CellSet?
  vtkm::worklet::connectivity::CellSetConnectivity().Run(
    input.GetCellSet(0).Cast<vtkm::cont::CellSetSingleType<>>(), component);

  auto result = internal::CreateResult(
    input, component, "component", fieldMetadata.GetAssociation(), fieldMetadata.GetCellSetName());
  return result;
}
}
}