/*
 *=======================================================================================
 * Name        : dllcom.cpp
 * Author      : C. Beaudet                  Date :20/05/97
 * Description : Common functions for Object DLL capabilities
 *=======================================================================================
 * Modification -> Author : VL               Date : 20/05/97
 * Description : Common functions for Object Table Tool DLL
 *=======================================================================================
 */

#include "stdafx.h"
#include "acp_base.h"
#include "afxdllx.h"    
#include "ITF.h"
#include "ai_intf.hpp"

#include "x:\cpa\main\inc\_EditID.h"

/*
 *------------------------------------------------------------------------
 * Global vars
 *------------------------------------------------------------------------
 */
static char							*gs_p_szCPAVersion = C_szCPAVersion;
static AFX_EXTENSION_MODULE NEAR    extensionDLL = { NULL, NULL };

#ifdef DLL_ONLY_ONE_INSTANCE
static CPA_EdIR_Interface *gs_p_oAIInterface = NULL;
#endif 

static CList<CPA_DLLBase*,CPA_DLLBase*> g_oListOfInstances;	//private internal

//------------------------------------------------------------------------
// functions that are present in all DLL :
//------------------------------------------------------------------------

//========================================================================
// Get current CPA version
//========================================================================
extern "C" char __declspec(dllexport) *fn_p_szGetCPAVersion(void)
{
    return gs_p_szCPAVersion;
}

//========================================================================
// Get type of this DLL
//========================================================================
extern "C" tdstDLLIdentity __declspec(dllexport) *fn_p_stGetDLLIdentity(void)
{
	g_stAIIdentity.eType = TOOL_DLL;								//DLL type
	g_stAIIdentity.csName = C_szDLLAIEditorName;		//DLL name (unique name)
	g_stAIIdentity.hModule = NULL;									//********************** private internal
	g_stAIIdentity.p_oListOfInstances = &g_oListOfInstances;		//********************** private internal
  
	return &g_stAIIdentity;
}

//========================================================================
// DLL init function
//========================================================================
extern "C" void _declspec(dllexport) fn_vInitDll(void)
{
	new CDynLinkLibrary(extensionDLL);
}

//========================================================================
// DLL entry point
//========================================================================
extern "C" int __stdcall DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
	if (dwReason == DLL_PROCESS_ATTACH)
	{
		if (!AfxInitExtensionModule(extensionDLL, hInstance))
		   return 0;
	}
	return 1;
}

//========================================================================
// Get the DLL
//========================================================================
extern "C" CPA_DLLBase __declspec(dllexport) *fn_p_oGetDLL(long lKey)
{
  #ifdef DLL_ONLY_ONE_INSTANCE

	switch(lKey)
	{
		case 0:	// the game world
			if (gs_p_oAIInterface == NULL)
			{
				gs_p_oAIInterface = new CPA_EdIR_Interface();
				ASSERT(gs_p_oAIInterface != NULL);
			}

			g_pclAIInterface = gs_p_oAIInterface;

			return gs_p_oAIInterface;
		break;

		default:
			return NULL;
	}

#else //DLL_ONLY_ONE_INSTANCE

	switch(lKey)
	{
		case 0:	// the game world
			g_pclAIInterface=new CPA_EdIR_Interface();
			return g_pclAIInterface;
			break;

		default:
			return NULL;
	}

#endif //DLL_ONLY_ONE_INSTANCE
}


//------------------------------------------------------------------------
// functions that are present in this type of DLL only :
//------------------------------------------------------------------------

#undef DLL_ONLY_ONE_INSTANCE