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//
// ***********************************************************************
//
//        MueLu: A package for multigrid based preconditioning
//                  Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// Questions? Contact
//                    Jonathan Hu       (jhu@sandia.gov)
//                    Andrey Prokopenko (aprokop@sandia.gov)
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// @HEADER
#ifndef MUELU_AGGREGATIONALGORITHMBASE_KOKKOS_HPP
#define MUELU_AGGREGATIONALGORITHMBASE_KOKKOS_HPP

#include "MueLu_ConfigDefs.hpp"
#ifdef HAVE_MUELU_KOKKOS_REFACTOR

#include <KokkosCompat_ClassicNodeAPI_Wrapper.hpp>

#include "MueLu_Aggregates_kokkos_fwd.hpp"

#include "MueLu_BaseClass.hpp"
#include "MueLu_Aggregates_kokkos.hpp"
#include "MueLu_LWGraph_kokkos.hpp"
#include "MueLu_Types.hpp"

namespace MueLu {

  /*!
       @class AggregationAlgorithmBase
       @brief Pure virtual base class for all MueLu aggregation algorithms

       @ingroup MueLuBaseClasses
   */
  template <class LocalOrdinal = int,
            class GlobalOrdinal = LocalOrdinal,
            class Node = KokkosClassic::DefaultNode::DefaultNodeType>
  class AggregationAlgorithmBase_kokkos : public BaseClass {
#undef MUELU_AGGREGATIONALGORITHMBASE_KOKKOS_SHORT
#include "MueLu_UseShortNamesOrdinal.hpp"
    public:

    //! @name Constructors/Destructors
    //@{

    //! Destructor.
    virtual ~AggregationAlgorithmBase_kokkos() {}

    //@}

    //! @name Build routines
    //@{

    //! BuildAggregates routine.
    virtual void BuildAggregates(const Teuchos::ParameterList& params, const LWGraph_kokkos& graph, Aggregates_kokkos& aggregates,
                                 std::vector<unsigned>& aggStat, LO& numNonAggregatedNodes) const = 0;
    //@}
  };

} // namespace MueLu

#define MUELU_AGGREGATIONALGORITHMBASE_KOKKOS_SHORT
#endif // HAVE_MUELU_KOKKOS_REFACTOR
#endif // MUELU_AGGREGATIONALGORITHMBASE_KOKKOS_HPP
