// Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
// SPDX-License-Identifier: MIT

#include <cstdlib>
#include <iostream>
#include <initializer_list>
#include <vector>
#include <tuple>
#include <gtest/gtest.h>

#include "profiler/profile_batchnorm_backward_impl.hpp"

using F16  = ck::half_t;
using F32  = float;
using BF16 = ck::bhalf_t;
using F64  = double;

static ck::index_t param_mask     = 0xffff;
static ck::index_t instance_index = -1;

template <typename Tuple>
class TestBatchNormBwdRank4 : public ::testing::Test
{
    private:
    const double epsilon = std::numeric_limits<float>::epsilon();

    protected:
    using XDataType       = std::tuple_element_t<0, Tuple>;
    using DxDataType      = std::tuple_element_t<1, Tuple>;
    using DyDataType      = std::tuple_element_t<2, Tuple>;
    using AccDataType     = std::tuple_element_t<3, Tuple>;
    using ScaleDataType   = std::tuple_element_t<4, Tuple>;
    using BiasDataType    = std::tuple_element_t<5, Tuple>;
    using MeanVarDataType = std::tuple_element_t<6, Tuple>;

    std::vector<std::vector<size_t>> list_of_lengths = {
        {128, 16, 3, 1024}, {128, 16, 6, 512}, {1, 1, 1, 1}, {4, 4, 4, 4}, {32, 32, 32, 32}};
    std::vector<int> reduceDims;

    template <int NumReduceDim>
    void Run()
    {
        for(size_t i = 0; i < list_of_lengths.size(); i++)
        {
            if((param_mask & (1 << i)) == 0)
            {
                continue;
            }
            auto& inOutLengths = list_of_lengths[i];
            bool pass          = true;

            EXPECT_FALSE(reduceDims.size() != NumReduceDim);

            pass =
                pass &&
                ck::profiler::profile_batchnorm_backward_impl<XDataType,
                                                              DxDataType,
                                                              DyDataType,
                                                              AccDataType,
                                                              ScaleDataType,
                                                              BiasDataType,
                                                              MeanVarDataType,
                                                              4,
                                                              NumReduceDim>(
                    true, 3, false, false, inOutLengths, reduceDims, true, epsilon, instance_index);

            pass =
                pass && ck::profiler::profile_batchnorm_backward_impl<XDataType,
                                                                      DxDataType,
                                                                      DyDataType,
                                                                      AccDataType,
                                                                      ScaleDataType,
                                                                      BiasDataType,
                                                                      MeanVarDataType,
                                                                      4,
                                                                      NumReduceDim>(true,
                                                                                    3,
                                                                                    false,
                                                                                    false,
                                                                                    inOutLengths,
                                                                                    reduceDims,
                                                                                    false,
                                                                                    epsilon,
                                                                                    instance_index);

            EXPECT_TRUE(pass);
        }
    }
};

using KernelTypes = ::testing::Types<
#ifdef CK_ENABLE_FP16
    std::tuple<F16, F32, F32, F32, F16, F32, F32>
#endif
#ifdef CK_ENABLE_FP32
    ,
    std::tuple<F32, F32, F32, F32, F32, F32, F32>
#endif
#ifdef CK_ENABLE_BF16
    ,
    std::tuple<BF16, F32, F32, F32, BF16, F32, F32>
#endif
#ifdef CK_ENABLE_FP64
    ,
    std::tuple<F64, F64, F64, F64, F64, F64, F64>
#endif
    >;

TYPED_TEST_SUITE(TestBatchNormBwdRank4, KernelTypes);

// nhwc
TYPED_TEST(TestBatchNormBwdRank4, nhwc)
{
    this->reduceDims = {0, 1, 2};
    this->template Run<3>();
}

// nchw
TYPED_TEST(TestBatchNormBwdRank4, nchw)
{
    this->reduceDims = {0, 2, 3};
    this->template Run<3>();
}
int main(int argc, char** argv)
{
    testing::InitGoogleTest(&argc, argv);
    if(argc == 1) {}
    else if(argc == 3)
    {
        param_mask     = strtol(argv[1], nullptr, 0);
        instance_index = atoi(argv[2]);
    }
    else
    {
        std::cout << "Usage of " << argv[0] << std::endl;
        std::cout << "Arg1,2: param_mask instance_index(-1 means all)" << std::endl;
    }
    return RUN_ALL_TESTS();
}