//============================================================================
//  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/cont/RuntimeDeviceTracker.h>

#include <vtkm/cont/cuda/DeviceAdapterCuda.h>
#include <vtkm/cont/internal/DeviceAdapterError.h>
#include <vtkm/cont/openmp/DeviceAdapterOpenMP.h>
#include <vtkm/cont/serial/DeviceAdapterSerial.h>
#include <vtkm/cont/tbb/DeviceAdapterTBB.h>

#include <vtkm/cont/testing/Testing.h>

namespace
{

// Invalid tag for testing. Returns the default "InvalidDeviceId" from
// vtkm::cont::RuntimeDeviceTracker::GetName.
struct VTKM_ALWAYS_EXPORT DeviceAdapterTagInvalidDeviceId : vtkm::cont::DeviceAdapterId
{
  constexpr DeviceAdapterTagInvalidDeviceId()
    : DeviceAdapterId(VTKM_MAX_DEVICE_ADAPTER_ID)
  {
  }
};

template <typename Tag>
void TestName(const std::string& name, Tag tag, vtkm::cont::DeviceAdapterId id)
{
  auto tracker = vtkm::cont::GetGlobalRuntimeDeviceTracker();

#if 0
  std::cerr << "Expected: " << name << "\n"
            << "\t" << id.GetName() << "\n"
            << "\t" << tag.GetName() << "\n"
            << "\t" << tracker.GetDeviceName(id) << "\n"
            << "\t" << tracker.GetDeviceName(tag) << "\n";
#endif

  VTKM_TEST_ASSERT(id.GetName() == name, "Id::GetName() failed.");
  VTKM_TEST_ASSERT(tag.GetName() == name, "Tag::GetName() failed.");
  VTKM_TEST_ASSERT(tracker.GetDeviceName(id) == name, "RTDeviceTracker::GetDeviceName(Id) failed.");
  VTKM_TEST_ASSERT(tracker.GetDeviceName(tag) == name,
                   "RTDeviceTracker::GetDeviceName(Tag) failed.");
}

void TestNames()
{
  DeviceAdapterTagInvalidDeviceId invalidTag;
  vtkm::cont::DeviceAdapterTagError errorTag;
  vtkm::cont::DeviceAdapterIdUndefined undefinedTag;
  vtkm::cont::DeviceAdapterTagSerial serialTag;
  vtkm::cont::DeviceAdapterTagTBB tbbTag;
  vtkm::cont::DeviceAdapterTagOpenMP openmpTag;
  vtkm::cont::DeviceAdapterTagCuda cudaTag;

  TestName("InvalidDeviceId", invalidTag, invalidTag);
  TestName("Error", errorTag, errorTag);
  TestName("Undefined", undefinedTag, undefinedTag);
  TestName("Serial", serialTag, serialTag);
  TestName("TBB", tbbTag, tbbTag);
  TestName("OpenMP", openmpTag, openmpTag);
  TestName("Cuda", cudaTag, cudaTag);
}

} // end anon namespace

int UnitTestRuntimeDeviceNames(int, char* [])
{
  return vtkm::cont::testing::Testing::Run(TestNames);
}