//============================================================================
//  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 2015 Sandia Corporation.
//  Copyright 2015 UT-Battelle, LLC.
//  Copyright 2015 Los Alamos National Security.
//
//  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
//  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.
//============================================================================
#ifndef vtk_m_cont_CellSet_h
#define vtk_m_cont_CellSet_h

#include <vtkm/StaticAssert.h>

#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/cont/Field.h>
#include <vtkm/cont/LogicalStructure.h>
#include <vtkm/cont/DynamicArrayHandle.h>
#include <vtkm/cont/DeviceAdapterAlgorithm.h>

namespace vtkm {
namespace cont {

class CellSet
{
public:
  VTKM_CONT
  CellSet(const std::string &name)
    : Name(name), LogicalStructure()
  {
  }

  VTKM_CONT
  CellSet(const vtkm::cont::CellSet &src)
    : Name(src.Name),
      LogicalStructure(src.LogicalStructure)
  {  }

  VTKM_CONT
  CellSet &operator=(const vtkm::cont::CellSet &src)
  {
    this->Name = src.Name;
    this->LogicalStructure = src.LogicalStructure;
    return *this;
  }

  virtual ~CellSet()
  {
  }

  virtual std::string GetName() const
  {
    return this->Name;
  }

  virtual vtkm::Id GetNumberOfCells() const = 0;

  virtual vtkm::Id GetNumberOfFaces() const
  {
    return 0;
  }

  virtual vtkm::Id GetNumberOfEdges() const
  {
    return 0;
  }

  virtual vtkm::Id GetNumberOfPoints() const = 0;

  virtual void PrintSummary(std::ostream&) const = 0;

protected:
    std::string Name;
    vtkm::cont::LogicalStructure LogicalStructure;
};

namespace internal {

/// Checks to see if the given object is a cell set. It contains a
/// typedef named \c type that is either std::true_type or
/// std::false_type. Both of these have a typedef named value with the
/// respective boolean value.
///
template<typename T>
struct CellSetCheck
{
  using type = typename std::is_base_of<vtkm::cont::CellSet, T>;
};

#define VTKM_IS_CELL_SET(T) \
  VTKM_STATIC_ASSERT(::vtkm::cont::internal::CellSetCheck<T>::type::value)

} // namespace internal

}
} // namespace vtkm::cont

#endif //vtk_m_cont_CellSet_h
