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#ifndef ROCWMMA_TEST_HIP_DEVICE_HPP
#define ROCWMMA_TEST_HIP_DEVICE_HPP

#include <hip/hip_runtime.h>
#include <hip/hip_runtime_api.h>
#include <rocm_smi/rocm_smi.h>
#include <rocwmma/internal/constants.hpp>

#include "performance.hpp"
#include "singleton.hpp"

namespace rocwmma
{

    class HipDevice : public LazySingleton<HipDevice>
    {
    public:
        // For static initialization
        friend std::unique_ptr<HipDevice> std::make_unique<HipDevice>();

        enum hipGcnArch_t : uint32_t
        {
            GFX908           = Constants::AMDGCN_ARCH_ID_GFX908,
            GFX90A           = Constants::AMDGCN_ARCH_ID_GFX90A,
            GFX1100          = Constants::AMDGCN_ARCH_ID_GFX1100,
            GFX1101          = Constants::AMDGCN_ARCH_ID_GFX1101,
            GFX1102          = Constants::AMDGCN_ARCH_ID_GFX1102,
            UNSUPPORTED_ARCH = Constants::AMDGCN_ARCH_ID_NONE,
        };

        enum hipWarpSize_t : uint32_t
        {
            Wave32                = Constants::AMDGCN_WAVE_SIZE_32,
            Wave64                = Constants::AMDGCN_WAVE_SIZE_64,
            UNSUPPORTED_WARP_SIZE = Constants::AMDGCN_WAVE_SIZE_NONE,
        };

    protected:
        HipDevice();

    public:
        hipDevice_t     getDeviceHandle() const;
        hipDeviceProp_t getDeviceProps() const;
        hipDeviceArch_t getDeviceArch() const;
        hipGcnArch_t    getGcnArch() const;

        int warpSize() const;
        int sharedMemSize() const;
        int cuCount() const;
        int maxFreqMhz() const;
        int curFreqMhz() const;

        template <typename InputT>
        double peakGFlopsPerSec() const;

        ~HipDevice();

    private:
        hipDevice_t     mHandle;
        hipDeviceProp_t mProps;
        hipDeviceArch_t mArch;
        hipGcnArch_t    mGcnArch;
        int             mWarpSize;
        int             mSharedMemSize;
        int             mCuCount;
        int             mMaxFreqMhz;
        int             mCurFreqMhz;
    };

    template <typename InputT>
    double HipDevice::peakGFlopsPerSec() const
    {
        double result = -1.0;
        switch(mGcnArch)
        {
        case hipGcnArch_t::GFX908:
            result = calculatePeakGFlopsPerSec<InputT, MI100>(mCurFreqMhz, mCuCount);
            break;

        case hipGcnArch_t::GFX90A:
            result = calculatePeakGFlopsPerSec<InputT, MI200>(mCurFreqMhz, mCuCount);
            break;

        default:
            result = calculatePeakGFlopsPerSec<InputT>(mCurFreqMhz, mCuCount);
        }
        return result;
    }
} // namespace rocwmma

#endif // ROCWMMA_TEST_HIP_DEVICE_HPP
