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

    File: AuRPC.hpp
    Date: 2022-6-29
    Author: Reece
***/
#pragma once

struct Session;
struct AuRPCServer;
struct AuRPCServerChannel;
struct AuRPCClientChannel;
struct AuRPCRequest;
struct AuRPC;
struct AuRPCRequestCallback;
struct AuIRPCService;

#include "AuRPCAPI.hpp"
#include <Aurora/IO/IOExperimental.hpp>

#include "AuRPCServer.hpp"

struct AuRPC : AuIRPC, AuEnableSharedFromThis<AuRPC>
{
    bool StartClient(AuAsync::WorkerPId_t worker) override;
    bool StartServer(AuAsync::WorkerPId_t worker) override;

    AuSPtr<AuIRPCServer> ToServer() override;
    AuSPtr<AuIRPCClientChannel> Connect(const AuString &str);
    void SetRecommendedPipeLength(AuUInt32 uLength) override;

private:
    friend struct AuRPCPipe;
    friend struct AuRPCServerChannel;

    AuOptional<AuUInt32> optPipeLength;
    AuAsync::WorkerPId_t pinnedClientThread;
    AuRPCServer server;
    AuList<AuSPtr<AuRPCClientChannel>> clientChannels;
};

AuSPtr<AuIO::IIOProcessor> GetRPCProcessor();

static const auto kRequestConnect       = 1u;
static const auto kRequestRPC           = 2u;

static const auto kResponseConnectOK    = 10u;
static const auto kResponseMulticonnect = 11u;
static const auto kResponseRPC          = 12u;

static const auto kGeneralBroadcast     = 20u;
static const auto kGeneralClientMessage = 21u; // shared
static const auto kGeneralServerMessage = 21u; // shared

static const AuUInt8 kResponseError[512] = {0};

#if (defined(AU_CFG_ID_DEBUG) || defined(AU_CFG_ID_INTERNAL__) /*!!!*/) && !defined(AU_RPC_DEBUG)
    #define AU_RPC_DEBUG
#endif

#if defined(AU_RPC_DEBUG)
    #define RpcLogDebug AuLogDbg
#else
    #define RpcLogDebug(...)
#endif