/*******************************************************************************
 *
 * MIT License
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 * Copyright (C) 2022-2026 Advanced Micro Devices, Inc. All rights reserved.
 *
 * 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:
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 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
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#pragma once

#include "RunListener.hpp"

#include <chrono>
#include <cstddef>

#include "ProgramOptions.hpp"

#include <Tensile/ContractionProblem.hpp>
#include <Tensile/ContractionSolution.hpp>

namespace TensileLite
{
    namespace Client
    {

        class BenchmarkTimer : public RunListener
        {
        public:
            using clock = std::chrono::steady_clock;

            BenchmarkTimer(po::variables_map const& args,
                           Hardware const&          hardware,
                           float                    flushTimeUs);

            virtual bool needMoreBenchmarkRuns() const override;
            virtual void preBenchmarkRun() override;
            virtual void postBenchmarkRun() override;

            virtual void preProblem(ContractionProblem* const problem) override;
            virtual void postProblem() override;

            virtual void preSolution(ContractionSolution* const solution) override;
            virtual void postSolution() override;

            virtual bool needMoreRunsInSolution() const override;

            virtual size_t numWarmupRuns() override;
            virtual void   setNumWarmupRuns(size_t count) override;
            virtual void   preWarmup() override;
            virtual void   postWarmup(TimingEvents const& startEvents,
                                      TimingEvents const& stopEvents,
                                      hipStream_t const&  stream) override;
            virtual void   validateWarmups(std::shared_ptr<ProblemInputs> inputs,
                                           TimingEvents const&            startEvents,
                                           TimingEvents const&            stopEvents) override;

            virtual size_t numSyncs() override;
            virtual void   setNumSyncs(size_t count) override;
            virtual void   preSyncs() override;
            virtual void   postSyncs() override;

            virtual size_t numEnqueuesPerSync() override;
            virtual void   setNumEnqueuesPerSync(size_t count) override;
            virtual void   preEnqueues(hipStream_t const& stream) override;
            virtual void   postEnqueues(TimingEvents const& startEvents,
                                        TimingEvents const& stopEvents,
                                        hipStream_t const&  stream) override;
            virtual void   validateEnqueues(std::shared_ptr<ProblemInputs> inputs,
                                            TimingEvents const&            startEvents,
                                            TimingEvents const&            stopEvents) override;

            virtual void finalizeReport() override;
            virtual int  error() const override;
            void         setIFlushTimeUs(float timeUs)
            {
                m_flushTimeUs = timeUs;
            }

        private:
            const int    m_numWarmups;
            const int    m_numBenchmarks;
            const int    m_numEnqueuesPerSync;
            const int    m_maxEnqueuesPerSync;
            const int    m_numSyncsPerBenchmark;
            const int    m_numEnqueuesPerSolution;
            const size_t m_minFlopsPerSync = 0;

            const bool m_useGPUTimer;
            const bool m_syncAfterWarmups = true;
            const int  m_sleepPercent;

            int m_numBenchmarksRun = 0;

            Hardware const&      m_hardware;
            ContractionProblem*  m_problem;
            ContractionSolution* m_solution;

            int m_numEnqueuesInSolution = 0;
            int m_numSyncsInBenchmark   = 0;
            int m_curNumEnqueuesPerSync = 0;

            clock::time_point m_startTime;
            clock::time_point m_endTime;

            hipEvent_t start = nullptr;
            hipEvent_t stop  = nullptr;

            using double_millis = std::chrono::duration<double, std::milli>;
            using double_micros = std::chrono::duration<double, std::micro>;
            using double_nanos  = std::chrono::duration<double, std::nano>;
            using prob_sol_map  = std::map<int, int>;

            double_millis m_timeInSolution;
            double_millis m_totalGPUTime;
            double_millis m_currentBestWarmUpTime;
            float         m_flushTimeUs;
            float         m_skip_slow_solution_ratio;
            bool          m_skip_slow_solution;
            size_t        m_numSolutionSkip;
            prob_sol_map  m_prob_sol_map;
            bool          m_skiprun_from_map;
            int           m_currProblemIdx;
            int           m_currSolutionIdx;
            int           m_probOnlyRunSolIdx;
        };
    } // namespace Client
} // namespace TensileLite