//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once

#include <armnn/ArmNN.hpp>
#include <armnn/Tensor.hpp>
#include <armnn/TypesUtils.hpp>

#include <backendsCommon/CpuTensorHandle.hpp>
#include <backendsCommon/WorkloadFactory.hpp>

#include <test/TensorHelpers.hpp>

template<typename T>
LayerTestResult<T, 4> SpaceToBatchNdTestImpl(
    const armnn::IWorkloadFactory& workloadFactory,
    armnn::TensorInfo& inputTensorInfo,
    armnn::TensorInfo& outputTensorInfo,
    std::vector<float>& inputData,
    std::vector<float>& outputExpectedData,
    armnn::SpaceToBatchNdQueueDescriptor descriptor,
    const float qScale = 1.0f,
    const int32_t qOffset = 0)
{
    const armnn::PermutationVector NCHWToNHWC = {0, 3, 1, 2};
    if (descriptor.m_Parameters.m_DataLayout == armnn::DataLayout::NHWC)
    {
        inputTensorInfo = armnnUtils::Permuted(inputTensorInfo, NCHWToNHWC);
        outputTensorInfo = armnnUtils::Permuted(outputTensorInfo, NCHWToNHWC);

        std::vector<float> inputTmp(inputData.size());
        armnnUtils::Permute(inputTensorInfo.GetShape(), NCHWToNHWC, inputData.data(), inputTmp.data());
        inputData = inputTmp;

        std::vector<float> outputTmp(outputExpectedData.size());
        armnnUtils::Permute(outputTensorInfo.GetShape(), NCHWToNHWC, outputExpectedData.data(), outputTmp.data());
        outputExpectedData = outputTmp;
    }

    if(armnn::IsQuantizedType<T>())
    {
        inputTensorInfo.SetQuantizationScale(qScale);
        inputTensorInfo.SetQuantizationOffset(qOffset);
        outputTensorInfo.SetQuantizationScale(qScale);
        outputTensorInfo.SetQuantizationOffset(qOffset);
    }

    boost::multi_array<T, 4> input = MakeTensor<T, 4>(inputTensorInfo, QuantizedVector<T>(qScale, qOffset, inputData));

    LayerTestResult<T, 4> ret(outputTensorInfo);
    ret.outputExpected = MakeTensor<T, 4>(outputTensorInfo, QuantizedVector<T>(qScale, qOffset, outputExpectedData));

    std::unique_ptr<armnn::ITensorHandle> inputHandle = workloadFactory.CreateTensorHandle(inputTensorInfo);
    std::unique_ptr<armnn::ITensorHandle> outputHandle = workloadFactory.CreateTensorHandle(outputTensorInfo);

    armnn::WorkloadInfo info;
    AddInputToWorkload(descriptor, info, inputTensorInfo, inputHandle.get());
    AddOutputToWorkload(descriptor, info, outputTensorInfo, outputHandle.get());

    std::unique_ptr<armnn::IWorkload> workload = workloadFactory.CreateSpaceToBatchNd(descriptor, info);

    inputHandle->Allocate();
    outputHandle->Allocate();

    CopyDataToITensorHandle(inputHandle.get(), &input[0][0][0][0]);

    workload->Execute();

    CopyDataFromITensorHandle(&ret.output[0][0][0][0], outputHandle.get());

    return ret;
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdSimpleTest(armnn::IWorkloadFactory& workloadFactory,
                                               armnn::DataLayout dataLayout = armnn::DataLayout::NCHW)
{
    armnn::TensorInfo inputTensorInfo;
    armnn::TensorInfo outputTensorInfo;

    unsigned int inputShape[] = {1, 1, 2, 2};
    unsigned int outputShape[] = {4, 1, 1, 1};

    armnn::SpaceToBatchNdQueueDescriptor desc;
    desc.m_Parameters.m_DataLayout = dataLayout;
    desc.m_Parameters.m_BlockShape = {2, 2};
    desc.m_Parameters.m_PadList = {{0, 0}, {0, 0}};

    inputTensorInfo = armnn::TensorInfo(4, inputShape, armnn::GetDataType<T>());
    outputTensorInfo = armnn::TensorInfo(4, outputShape, armnn::GetDataType<T>());

    std::vector<float> input = std::vector<float>(
    {
        1.0f, 2.0f, 3.0f, 4.0f
    });

    std::vector<float> outputExpected = std::vector<float>(
    {
        1.0f, 2.0f, 3.0f, 4.0f
    });

    return SpaceToBatchNdTestImpl<T>(workloadFactory, inputTensorInfo, outputTensorInfo, input, outputExpected, desc);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdMultiChannelsTest(armnn::IWorkloadFactory& workloadFactory,
                                                      armnn::DataLayout dataLayout = armnn::DataLayout::NCHW)
{
    armnn::TensorInfo inputTensorInfo;
    armnn::TensorInfo outputTensorInfo;

    unsigned int inputShape[] = {1, 3, 2, 2};
    unsigned int outputShape[] = {4, 3, 1, 1};

    armnn::SpaceToBatchNdQueueDescriptor desc;
    desc.m_Parameters.m_DataLayout = dataLayout;
    desc.m_Parameters.m_BlockShape = {2, 2};
    desc.m_Parameters.m_PadList = {{0, 0}, {0, 0}};

    inputTensorInfo = armnn::TensorInfo(4, inputShape, armnn::GetDataType<T>());
    outputTensorInfo = armnn::TensorInfo(4, outputShape, armnn::GetDataType<T>());

    std::vector<float> input = std::vector<float>(
    {
        1.0f, 4.0f, 7.0f, 10.0f,
        2.0f, 5.0, 8.0, 11.0f,
        3.0f, 6.0f, 9.0f, 12.0f
    });

    std::vector<float> outputExpected = std::vector<float>(
    {
        1.0f, 2.0f, 3.0f,
        4.0f, 5.0f, 6.0f,
        7.0f, 8.0f, 9.0f,
        10.0f, 11.0f, 12.0f
    });

    return SpaceToBatchNdTestImpl<T>(workloadFactory, inputTensorInfo, outputTensorInfo, input, outputExpected, desc);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdMultiBlockTest(armnn::IWorkloadFactory& workloadFactory,
                                                   armnn::DataLayout dataLayout = armnn::DataLayout::NCHW)
{
    armnn::TensorInfo inputTensorInfo;
    armnn::TensorInfo outputTensorInfo;

    unsigned int inputShape[] = {1, 1, 4, 4};
    unsigned int outputShape[] = {4, 1, 2, 2};

    armnn::SpaceToBatchNdQueueDescriptor desc;
    desc.m_Parameters.m_DataLayout = dataLayout;
    desc.m_Parameters.m_BlockShape = {2, 2};
    desc.m_Parameters.m_PadList = {{0, 0}, {0, 0}};

    inputTensorInfo = armnn::TensorInfo(4, inputShape, armnn::GetDataType<T>());
    outputTensorInfo = armnn::TensorInfo(4, outputShape, armnn::GetDataType<T>());

    std::vector<float> input = std::vector<float>(
    {
        1.0f, 2.0f, 3.0f, 4.0f,
        5.0f, 6.0f, 7.0f, 8.0f,
        9.0f, 10.0f, 11.0f, 12.0f,
        13.0f, 14.0f, 15.0f, 16.0f
    });

    std::vector<float> outputExpected = std::vector<float>(
    {
        1.0f, 3.0f, 9.0f, 11.0f,
        2.0f, 4.0f, 10.0f, 12.0f,
        5.0f, 7.0f, 13.0f, 15.0f,
        6.0f, 8.0f, 14.0f, 16.0f
    });

    return SpaceToBatchNdTestImpl<T>(workloadFactory, inputTensorInfo, outputTensorInfo, input, outputExpected, desc);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdPaddingTest(armnn::IWorkloadFactory& workloadFactory,
                                                armnn::DataLayout dataLayout = armnn::DataLayout::NCHW)
{
    armnn::TensorInfo inputTensorInfo;
    armnn::TensorInfo outputTensorInfo;

    unsigned int inputShape[] = {2, 1, 2, 4};
    unsigned int outputShape[] = {8, 1, 1, 3};

    armnn::SpaceToBatchNdQueueDescriptor desc;
    desc.m_Parameters.m_DataLayout = dataLayout;
    desc.m_Parameters.m_BlockShape = {2, 2};
    desc.m_Parameters.m_PadList = {{0, 0}, {2, 0}};

    inputTensorInfo = armnn::TensorInfo(4, inputShape, armnn::GetDataType<T>());
    outputTensorInfo = armnn::TensorInfo(4, outputShape, armnn::GetDataType<T>());

    std::vector<float> input = std::vector<float>(
    {
        1.0f, 2.0f, 3.0f, 4.0f,
        5.0f, 6.0f, 7.0f, 8.0f,
        9.0f, 10.0f, 11.0f, 12.0f,
        13.0f, 14.0f, 15.0f, 16.0f
    });

    std::vector<float> outputExpected = std::vector<float>(
    {
        0.0f, 1.0f, 3.0f,
        0.0f, 9.0f, 11.0f,
        0.0f, 2.0f, 4.0f,
        0.0f, 10.0f, 12.0f,
        0.0f, 5.0f, 7.0f,
        0.0f, 13.0f, 15.0f,
        0.0f, 6.0f, 8.0f,
        0.0f, 14.0f, 16.0f
    });

    return SpaceToBatchNdTestImpl<T>(workloadFactory, inputTensorInfo, outputTensorInfo, input, outputExpected, desc);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdSimpleNHWCTest(armnn::IWorkloadFactory& workloadFactory)
{
    return SpaceToBatchNdSimpleTest<T>(workloadFactory, armnn::DataLayout::NHWC);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdMultiChannelsNHWCTest(armnn::IWorkloadFactory& workloadFactory)
{
    return SpaceToBatchNdMultiChannelsTest<T>(workloadFactory, armnn::DataLayout::NHWC);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdMultiBlockNHWCTest(armnn::IWorkloadFactory& workloadFactory)
{
    return SpaceToBatchNdMultiBlockTest<T>(workloadFactory, armnn::DataLayout::NHWC);
}

template <typename T>
LayerTestResult<T, 4> SpaceToBatchNdPaddingNHWCTest(armnn::IWorkloadFactory& workloadFactory)
{
    return SpaceToBatchNdPaddingTest<T>(workloadFactory, armnn::DataLayout::NHWC);
}