/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: ThreadState.hpp
    Date: 2021-11-1
    Author: Reece
***/
#pragma once

#include "AsyncRunnable.hpp"

namespace Aurora::Async
{
    using WorkEntry_t = AuPair<ThreadId_t, AuSPtr<IAsyncRunnable>>;

    // TODO: this is a hack because i havent implemented an epoll abstraction yet
    struct AsyncAppWaitSourceRequest
    {
        AuConsumer<AuSPtr<AuLoop::ILoopSource>, bool> callback;
        AuSPtr<AuLoop::ILoopSource> loopSource;
        AuUInt32 requestedOffset;
        AuUInt64 startTime;
        AuUInt64 endTime;
    };

    struct GroupState;
    struct AsyncLoop;

    struct ThreadState
    {
        ThreadState() : running(true, false, true),
            cvVariable(AuUnsafeRaiiToShared(cvWorkMutex.AsPointer())),
            isDeadEvent(false, false, true)
        {

        }

        // :vomit:
        WorkerId_t id;
        AuUInt8 multipopCount = 32;
        AuUInt32 lastFrameTime {};
        AuThreads::ThreadShared_t threadObject;
        AuWPtr<GroupState> parent;
        AuThreadPrimitives::Semaphore syncSema;
        AuThreadPrimitives::Event isDeadEvent;
        AuList<AuSPtr<AuThreads::IThreadFeature>> features;
        bool rejecting {};
        bool exiting {};
        bool shuttingdown {};
        bool exitingflag2 {};
        AuThreadPrimitives::Event running;
        //bool running;
        AuList<AsyncAppWaitSourceRequest> loopSources;
        AuList<WorkEntry_t> pendingWorkItems;
        AuSPtr<AsyncLoop> asyncLoop;
        Utility::RateLimiter rateLimiter;
        ERunMode runMode;
        int cookie {0};
        bool bAlreadyDoingExitTick {};
        bool bBreakEarly {};
        bool bIsKiller {};

        //
        AuThreadPrimitives::SpinLock externalFencesLock;
        AuList<AuThreading::IWaitable *> externalFences;

        //

        AuThreadPrimitives::ConditionMutex    cvWorkMutex;
        AuThreadPrimitives::ConditionVariable cvVariable;
        AuAUInt32                             cvSleepCount {};
        AuAUInt32                             cvLSActive {};
        AuAUInt32                             cvHasWork {};
        AuSPtr<AuLoop::ILSEvent> eventLs;
        AuSPtr<AuLoop::ILoopSource> asyncLoopSourceShared;
    };
}