/*
MIT License

Copyright (c) 2019 - 2024 Advanced Micro Devices, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

#include <chrono>
#include <thread>
#include <hip/hip_ext.h>
#include <hip/hip_runtime.h>

#include "rpp/errors.hpp"
#include "rpp/hipoc_kernel.hpp"
#if defined(STATIC)
#include "rpp/hip_kernels.hpp"
#endif

namespace rpp {

void HIPOCKernelInvoke::run(void* args, std::size_t size) const
{
    HipEventPtr start = nullptr;
    HipEventPtr stop  = nullptr;
    void* config[]    = {
// HIP_LAUNCH_PARAM_* are macros that do horrible things
#ifdef RPP_USE_CLANG_TIDY
        nullptr, args, nullptr, &size, nullptr
#else
        HIP_LAUNCH_PARAM_BUFFER_POINTER,
        args,
        HIP_LAUNCH_PARAM_BUFFER_SIZE,
        &size,
        HIP_LAUNCH_PARAM_END
#endif
    };
    if(callback)
    {
        start = make_hip_event();
        stop  = make_hip_event();
    }



#if defined (HSACOO) || defined (HIPRTC)

            auto status = hipExtModuleLaunchKernel(fun,
                                           gdims[0],
                                           gdims[1],
                                           gdims[2],
                                           ldims[0],
                                           ldims[1],
                                           ldims[2],
                                           0,
                                           stream,
                                           nullptr,
                                           reinterpret_cast<void**>(&config),
                                           start.get(),
                                           stop.get());
#elif defined(STATIC)
            //  std::cout<<"Going the static hipLaunchKernel"<<std::endl;

            std::map<std::string, const void*> f = funMap1();
            auto status = hipLaunchKernel(f[name],
                                           dim3(gdims[0],gdims[1],gdims[2]),
                                           dim3(ldims[0],ldims[1],ldims[2]),
                                           reinterpret_cast<void**>(args),
	    				   0, stream);
            // std::cout<<"Invoking kernel"<<name<<std::endl;
#endif
    if(status != hipSuccess)
        RPP_THROW_HIP_STATUS(status, "Failed to launch kernel");

    if(callback)
    {
#if 0
        auto start_time = std::chrono::system_clock::now();
        while(hipEventQuery(stop.get()) == hipErrorNotReady)
        {
            std::this_thread::yield();
            if((std::chrono::system_clock::now() - start_time) > std::chrono::seconds(60))
            {
                std::cerr << "Timeout: HIPOCKernelInvoke::run" << std::endl;
                std::abort();
            }
        }
#else
        hipEventSynchronize(stop.get());
#endif
        callback(start.get(), stop.get());
    }
}

HIPOCKernelInvoke HIPOCKernel::Invoke(hipStream_t stream,
                                      std::function<void(hipEvent_t, hipEvent_t)> callback)
{
    return HIPOCKernelInvoke{stream, fun, ldims, gdims, name, callback};
}
} // namespace rpp
