//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A higher level link library for general use in the game and tools.
//
//===========================================================================//

#ifndef TIER3DM_H
#define TIER3DM_H

#if defined(_WIN32)
#pragma once
#endif

#include "tier2/tier2dm.h"
#include "tier3/tier3.h"

//-----------------------------------------------------------------------------
// Helper empty implementation of an IAppSystem for tier2 libraries
//-----------------------------------------------------------------------------
template <class IInterface, int ConVarFlag = 0>
class CTier3DmAppSystem : public CTier2DmAppSystem<IInterface, ConVarFlag> {
    typedef CTier2DmAppSystem<IInterface, ConVarFlag> BaseClass;

   public:
    CTier3DmAppSystem(bool bIsPrimaryAppSystem = true)
        : BaseClass(bIsPrimaryAppSystem) {}

    virtual bool Connect(CreateInterfaceFn factory) {
        if (!BaseClass::Connect(factory)) return false;

        if (IsPrimaryAppSystem()) {
            ConnectTier3Libraries(&factory, 1);
        }
        return true;
    }

    virtual void Disconnect() {
        if (IsPrimaryAppSystem()) {
            DisconnectTier3Libraries();
        }
        BaseClass::Disconnect();
    }
};

#endif  // TIER3DM_H