/*
 *  Copyright (C) 2006 Benjamin Otte <otte@gnome.org>
 *
 *  This program 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 2, or (at your option)
 *  any later version.
 *
 *  This program 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.
 *
 *  $Id$
 */

#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif

#include <libgame/libgame.h>

void
usage (const char *filename)
{
  g_print ("usage: %s GAMENAME-OR-FILE PNG-FILENAME\n\n", filename);
}

int
main (int argc, char** argv)
{
  const char *game_name, *png_file;
  int width = 48, height = 48;
  GError *error = NULL;
  cairo_surface_t *surface;
  cairo_t *cr;
  cairo_status_t status;
  GameGame *game;
  
  g_type_init ();
  
  if (argc != 3) {
    usage (argv[0]);
    return 1;
  }
  game_name = argv[1];
  png_file = argv[2];
      
  if (g_str_has_suffix (game_name, "." G_MODULE_SUFFIX)) {
    game = game_game_load_from_file (game_name, &error);
  } else {
    game = game_game_load (game_name, &error);
  }
  if (game == NULL) {
    g_print ("Could not load game '%s': %s\n", game_name, error->message);
    g_error_free (error);
    return 1;
  }
  if (game->icon == NULL) {
    g_print ("Game '%s' has no icon\n", game_name);
    return 1;
  }

  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
  cr = cairo_create (surface);
  cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0);
  cairo_paint (cr);
  cairo_scale (cr, width, height);
  game_graphic_draw (game->icon, cr);
  cairo_destroy (cr);
  status = cairo_surface_write_to_png (surface, png_file);
  cairo_surface_destroy (surface);
  if (status != CAIRO_STATUS_SUCCESS) {
    g_print ("Errror saving icon to '%s': %s\n", png_file, cairo_status_to_string (status));
    return 1;
  }
  
  g_object_unref (game);
  return 0;
}