/* Chrysalide - Outil d'analyse de fichiers binaires
 * convert.c - conversion d'arguments en éléments usuels externes
 *
 * Copyright (C) 2025 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  Chrysalide is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Chrysalide 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


#include "convert.h"


#include <assert.h>
#include <pygobject.h>
#ifndef NDEBUG
#   include <stdbool.h>
#endif
#include <gio/gio.h>



/******************************************************************************
*                                                                             *
*  Paramètres  : arg = argument quelconque à tenter de convertir.             *
*                dst = destination des valeurs récupérées en cas de succès.   *
*                                                                             *
*  Description : Tente de convertir en instance GSettings.                    *
*                                                                             *
*  Retour      : Bilan de l'opération, voire indications supplémentaires.     *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

int convert_to_gsettings(PyObject *arg, void *dst)
{
    int result;                             /* Bilan à retourner           */
    GType type;                             /* Type obtenu ou 0            */

    result = PyObject_IsInstance(arg, (PyObject *)&PyGObject_Type);

    if (result == 1)
    {
        type = pyg_type_from_object(arg);

        if (type != G_TYPE_SETTINGS)
            result = 0;

    }

    switch (result)
    {
        case -1:
            /* L'exception est déjà fixée par Python */
            result = 0;
            break;

        case 0:
            PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to GSetting instance");
            break;

        case 1:
            *((GSettings **)dst) = G_SETTINGS(pygobject_get(arg));
            break;

        default:
            assert(false);
            break;

    }

    return result;

}