/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2009 - DIGITEO - Allan CORNET
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution.  The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
*
*/
/*--------------------------------------------------------------------------*/
#include <windows.h>
#include <stdlib.h>
#include "copyBlasFile.h"
#include "GetPathOfThisExe.h"
#include "FileExist.h"
/*--------------------------------------------------------------------------*/
#define BLAS_FILENAME_DEST L"blasplus.dll"
#define ATLAS_DIRECTORY L"Atlas"
#define FILE_SEPARATOR L"\\"
#define FORMAT_DESTINATION_FILENAME L"%s\\%s"
#define FORMAT_SOURCE_FILENAME L"%s\\%s\\%s"
/*--------------------------------------------------------------------------*/
static wchar_t* buildDestinationFilename(wchar_t* execpath);
static wchar_t* buildSourceFilename(wchar_t* execpath, wchar_t* blasDllName);
/*--------------------------------------------------------------------------*/
copy_blas_error copyBlasFile(wchar_t *blasDllName)
{
    copy_blas_error err = COPY_OK;
    wchar_t *currentexecpath = GetPathOfThisExe();
    if (currentexecpath)
    {
        wchar_t *destFilename = buildDestinationFilename(currentexecpath);
        wchar_t *srcFilename = buildSourceFilename(currentexecpath, blasDllName);
        if (destFilename && srcFilename)
        {
            if (FileExist(srcFilename))
            {
                if (!CopyFileW(srcFilename, destFilename, FALSE))
                {
                    err = COPY_FILE_FAILED;
                }
                else
                {
                    err = COPY_OK;
                }
            }
            else
            {
                err = COPY_FILE_SRC_NOT_EXISTS;
            }
        }

        if (destFilename)
        {
            free(destFilename);
            destFilename = NULL;
        }
        if (srcFilename)
        {
            free(srcFilename);
            srcFilename = NULL;
        }

        free(currentexecpath);
        currentexecpath = NULL;
    }
    else
    {
        err = COPY_DESTINATION_NOT_EXISTS;
    }
    return err;
}
/*--------------------------------------------------------------------------*/
wchar_t* buildDestinationFilename(wchar_t* execpath)
{
    wchar_t* DestinationFilename = NULL;
    if (execpath)
    {
        int len = (int)(wcslen(FORMAT_DESTINATION_FILENAME) +
                        wcslen(execpath) + wcslen(BLAS_FILENAME_DEST) + 1);

        DestinationFilename = (wchar_t *) calloc(len, sizeof(wchar_t));
        if (DestinationFilename)
        {
            wsprintfW(DestinationFilename, FORMAT_DESTINATION_FILENAME,
                      execpath, BLAS_FILENAME_DEST);
        }
    }
    return DestinationFilename;
}
/*--------------------------------------------------------------------------*/
wchar_t* buildSourceFilename(wchar_t* execpath, wchar_t* blasDllName)
{
    wchar_t* SourceFilename = NULL;
    if (execpath && blasDllName)
    {
        int len = (int)(wcslen(FORMAT_SOURCE_FILENAME) +
                        wcslen(execpath) + wcslen(ATLAS_DIRECTORY) +
                        wcslen(blasDllName) + 1);

        SourceFilename = (wchar_t *) calloc(len, sizeof(wchar_t));
        if (SourceFilename)
        {
            wsprintfW(SourceFilename, FORMAT_SOURCE_FILENAME,
                      execpath, ATLAS_DIRECTORY, blasDllName);
        }
    }
    return SourceFilename;
}
/*--------------------------------------------------------------------------*/