/*
 * WineCfg configuration management
 *
 * Copyright 2002 Jaco Greeff
 * Copyright 2003 Dimitrie O. Paun
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <stdio.h>
#include <limits.h>
#include <windows.h>

#include "winecfg.h"


/*****************************************************************************
 */
WINECFG_DESC* allocConfig(void)
{
    WINECFG_DESC* pWineCfg =  malloc (sizeof (WINECFG_DESC));

    if (!pWineCfg) goto fail;
    ZeroMemory(pWineCfg, sizeof(*pWineCfg));

    pWineCfg->pDlls = DPA_Create(100);
    if (!pWineCfg->pDlls) goto fail;
    pWineCfg->pApps = DPA_Create(100);
    if (!pWineCfg->pApps) goto fail;
    
    return pWineCfg;

fail:
    /* FIXME: do something nice */
    printf("Out of memory");
    exit(1);
}


/*****************************************************************************
 */
int freeConfig (WINECFG_DESC* pCfg)
{
    int i;

    for (i = 0; i < pCfg->pDlls->nItemCount; i++)
	free (DPA_GetPtr(pCfg->pDlls, i));
    DPA_Destroy(pCfg->pDlls);
    
    for (i = 0; i < pCfg->pApps->nItemCount; i++)
	free (DPA_GetPtr(pCfg->pApps, i));
    DPA_Destroy(pCfg->pApps);
    
    free (pCfg);

    return 0;
}

/*****************************************************************************
 * Name       : loadConfig
 * Description: Loads and populates a configuration structure
 * Parameters : pCfg
 * Returns    : 0 on success, -1 otherwise
 *
 * FIXME: We are supposed to load these values from the registry.
 *        This is not active yet, so just setup some (hopefully) 
 *        sane defaults
 */
int loadConfig (WINECFG_DESC* pCfg)
{
    const DLL_DESC *pDllDefaults;

    /*
     * The default versions for all applications
     */
    strcpy(pCfg->szDOSVer, "6.22");
    strcpy(pCfg->szWinVer, "win95");
    strcpy(pCfg->szWinLook, "win95");

    /*
     * Default directories
     */
    strcpy(pCfg->szWinDir, "c:\\Windows");
    strcpy(pCfg->szWinSysDir, "c:\\Windows\\System");
    strcpy(pCfg->szWinTmpDir, "c:\\Windows\\Temp");
    strcpy(pCfg->szWinProfDir, "c:\\Windows\\Profiles\\Administrator");
    strcpy(pCfg->szWinPath, "c:\\Windows;c:\\Windows\\System");

    /*
     * Graphics driver
     */
    strcpy(pCfg->szGraphDriver, "x11drv");

    /*
     * DLL defaults for all applications is built using
     * the default DLL structure
     */
    for (pDllDefaults = getDLLDefaults (); *pDllDefaults->szName; pDllDefaults++)
    {
        DLL_DESC *pDll = malloc(sizeof(DLL_DESC));
	memcpy (pDll, pDllDefaults, sizeof(DLL_DESC));
        DPA_InsertPtr(pCfg->pDlls, INT_MAX, pDll);
    }

    /*
     * Application defaults on a per application
     * level (if not set, this defaults to what 
     * is already there)
     */
    /* FIXME: TODO */

    /*
     * X11Drv defaults
     */
    strcpy(pCfg->sX11Drv.szX11Display, ":0.0");
    pCfg->sX11Drv.nSysColors = 100;
    pCfg->sX11Drv.nPrivateMap = 0;
    pCfg->sX11Drv.nPerfect = 0;
    pCfg->sX11Drv.nDepth = 16;
    pCfg->sX11Drv.nManaged = 1;
    pCfg->sX11Drv.nDesktopSizeX = 640;
    pCfg->sX11Drv.nDesktopSizeY = 480;
    pCfg->sX11Drv.nDGA = 1;
    pCfg->sX11Drv.nXShm = 1;
    pCfg->sX11Drv.nXVidMode = 1;
    pCfg->sX11Drv.nTakeFocus = 1;
    pCfg->sX11Drv.nDXGrab = 0;
    pCfg->sX11Drv.nDoubleBuffered = 0;
    pCfg->sX11Drv.nTextCP = 0;
    pCfg->sX11Drv.nXVideoPort = 43;
    pCfg->sX11Drv.nSynchronous = 1;

    return 0;
}


/*****************************************************************************
 * Name: saveConfig
 * Description: Stores the configuration structure
 * Parameters : pCfg
 * Returns    : 0 on success, -1 otherwise
 *
 * FIXME: This is where we are to write the changes to the registry.
 *        This is not setup yet, so do nothing and say ok.
 */
int saveConfig (const WINECFG_DESC* pCfg)
{
    return 0;
}