#include <faxres.h>
#include <faxreg.h>
#include "faxutil.h"
#include <tchar.h>
#include <stdio.h>
#include <stdlib.h>
#include "..\admin\faxres\resource.h"

extern "C" {

static HINSTANCE g_hResInst = NULL;

HINSTANCE 
WINAPI 
GetResInstance(HINSTANCE hModule)
///////////////////////////////////////////////////////////////////////////////////////
//  Function: 
//                  GetResInstance
//
//  Purpose:        
//                  Load FxsRes.dll
//                  FxsRes.dll should be freed with FreeResInstance
//
//  Params:
//                  hModule     [in] module handle
//
//  Return Value:
//                  handle of FxsRes.dll or NULL
///////////////////////////////////////////////////////////////////////////////////////
{
    return GetResInst(FAX_RES_FILE, hModule);
} // GetResInstance

HINSTANCE 
WINAPI 
GetResInst(
    LPCTSTR pResFile, 
    HINSTANCE hModule
)
///////////////////////////////////////////////////////////////////////////////////////
//  Function: 
//                  GetResInstance
//
//  Purpose:        
//                  Load file and store the handle in the global g_hResInst
//                  The file should be freed with FreeResInstance
//
//  Params:
//                  pResFile    [in] resource DLL file name
//                  hModule     [in] module handle
//  Return Value:
//                  handle to the loaded file or NULL
///////////////////////////////////////////////////////////////////////////////////////
{
    DEBUG_FUNCTION_NAME(TEXT("GetResInst"));

    if(!pResFile)
    {
        return NULL;
    }

    if(!g_hResInst)
    { 
		g_hResInst = LoadLibraryFromLocalFolder(pResFile,hModule);
        if(!g_hResInst)
        {
            DebugPrintEx(DEBUG_ERR,TEXT("LoadLibrary(%s) failed with %d"), pResFile, GetLastError());

            //
            // Try to load with the standard search algorithm
            //
            g_hResInst = LoadLibrary(pResFile);
            if(!g_hResInst)
            {
                DebugPrintEx(DEBUG_ERR,TEXT("LoadLibrary(%s) failed with %d"), pResFile, GetLastError());
            }
        }
    }
    return g_hResInst;
} // GetResInst

///////////////////////////////////////////////////////////////////////////////////////
//  Function: 
//                  LoadLibraryFromLocalFolder
//
//  Purpose:        
//                  Loads a library from the local folder as the calling process.
//
//  Params:
//                  LPCTSTR lpctstrModuleName   [in] DLL to load file name (with extension e.g FXSAPI.DLL)
//                  HINSTANCE hModule			[in] module handle
//  Return Value:
//                  handle to the loaded file or NULL
///////////////////////////////////////////////////////////////////////////////////////
HINSTANCE WINAPI LoadLibraryFromLocalFolder(LPCTSTR lpctstrModuleName,HINSTANCE hModule)
{
    DWORD	dwRes					= 0;
    TCHAR	szLibraryName[MAX_PATH] = {0};
    TCHAR	szModuleName[MAX_PATH]	= {0};
    TCHAR	szDrive[_MAX_DRIVE]		= {0};
    TCHAR	szDir[MAX_PATH]			= {0};
	HMODULE hRetModule				= NULL;

	DEBUG_FUNCTION_NAME(TEXT("LoadLibraryFromLocalFolder"));

    if(!lpctstrModuleName)
    {
        return NULL;
    }

    dwRes = GetModuleFileName(hModule,szModuleName,ARR_SIZE(szModuleName)-1);
    if(0 == dwRes)
    {
        DebugPrintEx(DEBUG_ERR,TEXT("GetModuleFileName failed with %d"), GetLastError());
        return NULL;
    }

    _tsplitpath(szModuleName, szDrive, szDir, NULL, NULL);
    _sntprintf(szLibraryName, ARR_SIZE(szLibraryName)-1, TEXT("%s%s%s"), szDrive, szDir, lpctstrModuleName);

    hRetModule = LoadLibrary(szLibraryName);
    if(!hRetModule)
    {
        DebugPrintEx(DEBUG_ERR,TEXT("LoadLibrary(%s) failed with %d"), szLibraryName, GetLastError());
		return NULL;
    }

	return hRetModule;
}

void
WINAPI 
FreeResInstance(void)
{
    if(g_hResInst)
    {
        FreeLibrary(g_hResInst);
        g_hResInst = NULL;
    }
}

UINT 
WINAPI 
GetErrorStringId(DWORD ec)
{
    DWORD uMsgId;

    switch (ec)
    {
        case RPC_S_INVALID_BINDING:
        case EPT_S_CANT_PERFORM_OP:
        case RPC_S_ADDRESS_ERROR:
        case RPC_S_CALL_CANCELLED:
        case RPC_S_CALL_FAILED:
        case RPC_S_CALL_FAILED_DNE:
        case RPC_S_COMM_FAILURE:
        case RPC_S_NO_BINDINGS:
        case RPC_S_SERVER_TOO_BUSY:
        case RPC_S_SERVER_UNAVAILABLE:
            uMsgId = IDS_ERR_CONNECTION_FAILED;
            break;
        case FAX_ERR_DIRECTORY_IN_USE:
            uMsgId = IDS_ERR_DIRECTORY_IN_USE;
            break;
        case ERROR_NOT_ENOUGH_MEMORY:
            uMsgId = IDS_ERR_NO_MEMORY;           
            break;
        case ERROR_ACCESS_DENIED:
            uMsgId = IDS_ERR_ACCESS_DENIED;            
            break;
        case ERROR_PATH_NOT_FOUND:
            uMsgId = IDS_ERR_FOLDER_NOT_FOUND;
            break;
        case FAXUI_ERROR_DEVICE_LIMIT:
        case FAX_ERR_DEVICE_NUM_LIMIT_EXCEEDED:
            uMsgId = IDS_ERR_DEVICE_LIMIT;
            break;
        case FAXUI_ERROR_INVALID_RING_COUNT:
            uMsgId = IDS_ERR_INVALID_RING_COUNT;
            break;
        case FAXUI_ERROR_SELECT_PRINTER:
            uMsgId = IDS_ERR_SELECT_PRINTER;
            break;
        case FAXUI_ERROR_NAME_IS_TOO_LONG:
            uMsgId = IDS_ERR_NAME_IS_TOO_LONG;
            break;
        case FAXUI_ERROR_INVALID_RETRIES:
            uMsgId = IDS_ERR_INVALID_RETRIES;
            break;
        case FAXUI_ERROR_INVALID_RETRY_DELAY:
            uMsgId = IDS_ERR_INVALID_RETRY_DELAY;
            break;
        case FAXUI_ERROR_INVALID_DIRTY_DAYS:
            uMsgId = IDS_ERR_INVALID_DIRTY_DAYS;
            break;
        case FAXUI_ERROR_INVALID_TSID:
            uMsgId = IDS_ERR_INVALID_TSID;
            break;
        case FAXUI_ERROR_INVALID_CSID:
            uMsgId = IDS_ERR_INVALID_CSID;
            break;
        default:
            uMsgId = IDS_ERR_OPERATION_FAILED;
            break;
	}
    return uMsgId;

} // GetErrorStringId

}   //  extern "C"