/***
    Copyright (C) 2023 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: CompletionGroup.hpp
    Date: 2023-12-28
    Author: Reece
***/
#pragma once

namespace Aurora::Async
{
    struct IWorkItem;
}

namespace Aurora::IO::Loop
{
    struct ILSEvent;
}

namespace Aurora::IO::CompletionGroup
{
    struct ICompletionGroup
    {
        virtual AuSPtr<Loop::ILoopSource> ToAndLoopSource() = 0;
        virtual AuSPtr<Loop::ILoopSource> ToAnyLoopSource() = 0;

        virtual AuSPtr<Async::IWorkItem>  OnCompletion() = 0;
        virtual AuSPtr<Async::IWorkItem>  OnSingleCompletion() = 0;

        virtual bool HasCompleted() = 0;
        virtual AuPair<AuUInt32, AuUInt32> GetStats() = 0;
        virtual void SetCallbacks(const AuSPtr<ICompletionGroupHooks> &pCallbacks) = 0;

        virtual void AddWorkItem(AuSPtr<ICompletionGroupWorkItem> pCompletable) = 0;

        virtual AuSPtr<Loop::ILSEvent> GetTriggerLoopSource() = 0;
        virtual void TryTrigger() = 0;

        // 0 = indefinite
        virtual bool WaitForAnyMS(AuUInt32 uTimeoutOrZeroMS = 0) = 0;
        virtual bool WaitForAllMS(AuUInt32 uTimeoutOrZeroMS = 0) = 0;
    };

    AUKN_SYM AuSPtr<ICompletionGroup> NewCompletionGroup();
}