/* Chrysalide - Outil d'analyse de fichiers binaires
 * app.c - fichier d'entrée du programme
 *
 * Copyright (C) 2024 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 <assert.h>
#include <fcntl.h>
#include <gio/gdesktopappinfo.h>
#include <gio/gio.h>
#include <sys/auxv.h>


#include "app.h"
#include "common/io.h"
#include "common/xdg.h"
#include "core/logs.h"
#include "glibext/helpers.h"



#define CHRYSALIDE_APP_ID "re.chrysalide.framework.gui" // REMME



/******************************************************************************
*                                                                             *
*  Paramètres  : -                                                            *
*                                                                             *
*  Description : Installe au besoin une définition locale pour le système.    *
*                                                                             *
*  Retour      : -                                                            *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

void ensure_wm_icon_and_name(void)
{
    GDesktopAppInfo *info;                  /* Information du système      */
    GKeyFile *kfile;                        /* Définition d'application    */
    unsigned long exec_path;                /* Chemin du programme         */
    char *filename;                         /* Nom de fichier à écrire     */
    GBytes *res;                            /* Données brutes d'une image  */
    gsize size;                             /* Taille de ces données       */
    gconstpointer data;                     /* Pointeur vers les données   */
    int fd;                                 /* Flux ouvert en écriture     */

    /* Evaluation du besoin */

    info = g_desktop_app_info_new(CHRYSALIDE_APP_ID ".desktop");

    /**
     * Si l'exécutable n'est pas valide (inconnu de $PATH),
     * la variable info n'est pas initialisée.
     */

    if (info != NULL)
    {
        unref_object(info);
        goto done;
    }

    /* Mise en place d'une définition d'application */

    exec_path = getauxval(AT_EXECFN);
    assert(exec_path != 0);

    kfile = g_key_file_new();

    g_key_file_set_string(kfile, "Desktop Entry", "Name", "Chrysalide");
    g_key_file_set_string(kfile, "Desktop Entry", "Comment[fr]", "Cadriciel de rétronception ciblant principalement les systèmes embarqués");
    g_key_file_set_string(kfile, "Desktop Entry", "Comment", "Reverse Engineering Framework focused on embedded systems");
    g_key_file_set_string(kfile, "Desktop Entry", "Type", "Application");
    g_key_file_set_string(kfile, "Desktop Entry", "Exec", (const char *)exec_path);
    g_key_file_set_string(kfile, "Desktop Entry", "Icon", "chrysalide-logo");
    g_key_file_set_string(kfile, "Desktop Entry", "StartupNotify", "true");
    g_key_file_set_string(kfile, "Desktop Entry", "MimeType", "application/vnd.android.package-archive");

    filename = get_xdg_data_dir("applications/re.chrysalide.framework.gui.desktop", true);

    g_key_file_save_to_file(kfile, filename, NULL);

    free(filename);

    g_key_file_free(kfile);

    /* Ecriture de l'image */

    res = g_resources_lookup_data("/re/chrysalide/framework/images/chrysalide-logo.svg",
                                  G_RESOURCE_LOOKUP_FLAGS_NONE, NULL);
    assert(res != NULL);

    data = g_bytes_get_data(res, &size);

    filename = get_xdg_data_dir("icons/hicolor/scalable/apps/chrysalide-logo.svg", true);

    fd = open(filename, O_WRONLY | O_CREAT);

    if (fd == -1)
        LOG_ERROR_N("open");

    else
    {
        safe_write(fd, data, size);
        close(fd);
    }

    free(filename);

    g_bytes_unref(res);

    /* Sortie */

 done:

    ;

}