/***
    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: AuIPCPipe.NT.hpp
    Date: 2022-4-15
    Author: Reece
***/
#pragma once

#include "IPC.hpp"

#include <Source/IO/IPC/AuIPCHandle.hpp>
#include <Source/IO/Loop/LSHandle.hpp>

#include "AuIPCPipeWriter.hpp"
#include "AuIPCPipeReader.hpp"

namespace Aurora::IO::FS
{
    struct NtAsyncFileStream;
}

namespace Aurora::IO::IPC
{
    struct IPCHasConnectionEvent;
    struct IPCHandle;

    struct IPCPipeImpl : IPCPipe,
        Loop::LSHandle,
        AuEnableSharedFromThis<IPCPipeImpl>
    {
        IPCPipeImpl(HANDLE clientHandle, HANDLE serverHandle, const IPCHandle &handle);
        ~IPCPipeImpl();

        PROXY_INTERNAL_INTERFACE_(LSHandle::)
        
        virtual AuSPtr<IO::IAsyncTransaction> NewAsyncTransaction() override;
        virtual AuSPtr<IO::IIOHandle>         GetCurrentSharedDuplexHandles() override;

        virtual AuSPtr<Loop::ILoopSource> AsReadChannelIsOpen() override;
        virtual AuSPtr<Loop::ILoopSource> AsReadChannelHasData() override;

        virtual bool Read(const Memory::MemoryViewStreamWrite &write, bool nonblocking) override;
        virtual bool Write(const Memory::MemoryViewStreamRead &read) override;
        virtual AuString ExportToString() override;

        virtual AuSPtr<IO::FS::IFileStream> ToFileStream() override;
        virtual AuSPtr<IStreamReader> ToStreamReader() override;
        virtual AuSPtr<IStreamWriter> ToStreamWriter() override;

        bool IsSignaled() override;
        bool WaitOn(AuUInt32 timeout) override;
        Loop::ELoopSource GetType() override;

        HANDLE GetPipeHandle();
        HANDLE GetConnectHandle();

        void OnEndOfReadStream();

        void TryConnect();
        OVERLAPPED overlapped {};
        HANDLE clientHandle_ {INVALID_HANDLE_VALUE};

        bool bDead {};
        AuSPtr<Loop::ILSEvent> hasClient_;
    private:
        HANDLE serverHandle_ {INVALID_HANDLE_VALUE};
        IPCHandle ipcHandle_;
        AuSPtr<IO::IIOHandle> fsHandle_;
        AuSPtr<IO::FS::NtAsyncFileStream> fsStream_;
        AuSPtr<IPCHasConnectionEvent> lshasConnection_;
        bool bFirstTime {true};
        AuSPtr<IO::FS::IFileStream> fsBlockingStream_;
        IPCPipeReader pipeReader_;
        IPCPipeWriter pipeWriter_;
    };
}