// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project

#ifndef KOKKOS_STD_ALGORITHMS_COPY_IF_HPP
#define KOKKOS_STD_ALGORITHMS_COPY_IF_HPP

#include "impl/Kokkos_CopyIf.hpp"
#include <Kokkos_Iterator.hpp>

namespace Kokkos {
namespace Experimental {

//
// overload set accepting execution space
//
template <
    typename ExecutionSpace, typename InputIterator, typename OutputIterator,
    typename Predicate,
    std::enable_if_t<::Kokkos::is_execution_space_v<ExecutionSpace>, int> = 0>
OutputIterator copy_if(const ExecutionSpace& ex, InputIterator first,
                       InputIterator last, OutputIterator d_first,
                       Predicate pred) {
  return Impl::copy_if_exespace_impl("Kokkos::copy_if_iterator_api_default", ex,
                                     first, last, d_first, std::move(pred));
}

template <
    typename ExecutionSpace, typename InputIterator, typename OutputIterator,
    typename Predicate,
    std::enable_if_t<::Kokkos::is_execution_space_v<ExecutionSpace>, int> = 0>
OutputIterator copy_if(const std::string& label, const ExecutionSpace& ex,
                       InputIterator first, InputIterator last,
                       OutputIterator d_first, Predicate pred) {
  return Impl::copy_if_exespace_impl(label, ex, first, last, d_first,
                                     std::move(pred));
}

template <
    typename ExecutionSpace, typename DataType1, typename... Properties1,
    typename DataType2, typename... Properties2, typename Predicate,
    std::enable_if_t<::Kokkos::is_execution_space_v<ExecutionSpace>, int> = 0>
auto copy_if(const ExecutionSpace& ex,
             const ::Kokkos::View<DataType1, Properties1...>& source,
             const ::Kokkos::View<DataType2, Properties2...>& dest,
             Predicate pred) {
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(source);
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(dest);
  Impl::expect_less_or_equal_extents(source, dest);

  return Impl::copy_if_exespace_impl("Kokkos::copy_if_view_api_default", ex,
                                     cbegin(source), cend(source), begin(dest),
                                     std::move(pred));
}

template <
    typename ExecutionSpace, typename DataType1, typename... Properties1,
    typename DataType2, typename... Properties2, typename Predicate,
    std::enable_if_t<::Kokkos::is_execution_space_v<ExecutionSpace>, int> = 0>
auto copy_if(const std::string& label, const ExecutionSpace& ex,
             const ::Kokkos::View<DataType1, Properties1...>& source,
             const ::Kokkos::View<DataType2, Properties2...>& dest,
             Predicate pred) {
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(source);
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(dest);
  Impl::expect_less_or_equal_extents(source, dest);

  return Impl::copy_if_exespace_impl(label, ex, cbegin(source), cend(source),
                                     begin(dest), std::move(pred));
}

//
// overload set accepting team handle
//
template <typename TeamHandleType, typename InputIterator,
          typename OutputIterator, typename Predicate,
          std::enable_if_t<::Kokkos::is_team_handle_v<TeamHandleType>, int> = 0>
KOKKOS_FUNCTION OutputIterator copy_if(const TeamHandleType& teamHandle,
                                       InputIterator first, InputIterator last,
                                       OutputIterator d_first, Predicate pred) {
  return Impl::copy_if_team_impl(teamHandle, first, last, d_first,
                                 std::move(pred));
}

template <typename TeamHandleType, typename DataType1, typename... Properties1,
          typename DataType2, typename... Properties2, typename Predicate,
          std::enable_if_t<::Kokkos::is_team_handle_v<TeamHandleType>, int> = 0>
KOKKOS_FUNCTION auto copy_if(
    const TeamHandleType& teamHandle,
    const ::Kokkos::View<DataType1, Properties1...>& source,
    const ::Kokkos::View<DataType2, Properties2...>& dest, Predicate pred) {
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(source);
  Impl::static_assert_is_admissible_to_kokkos_std_algorithms(dest);
  Impl::expect_less_or_equal_extents(source, dest);

  return Impl::copy_if_team_impl(teamHandle, cbegin(source), cend(source),
                                 begin(dest), std::move(pred));
}

}  // namespace Experimental
}  // namespace Kokkos

#endif
