<?php
/************************************************************************
 * MXChange v0.2.1                                    Start: 12/03/2004 *
 * ===============                              Last change: 12/13/2004 *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * File              : theme-manager.php                                *
 * -------------------------------------------------------------------- *
 * Short description : Theme manager                                    *
 * -------------------------------------------------------------------- *
 * Kurzbeschreibung  : Themen-Manager                                   *
 * -------------------------------------------------------------------- *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * Copyright (c) 2003 - 2008 by Roland Haeder                           *
 * For more information visit: http://www.mxchange.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 of the License, 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., 51 Franklin St, Fifth Floor, Boston,               *
 * MA  02110-1301  USA                                                  *
 ************************************************************************/

// Some security stuff...
if (ereg(basename(__FILE__), $_SERVER['PHP_SELF']))
{
	$INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
	require($INC);
}

//
function GET_CURR_THEME() {
	global $INC_POOL, $_CONFIG, $CSS;

	// The default theme is 'default'... ;-)
	$ret = "default";

	// Load default theme if not empty from configuration
	if (!empty($_CONFIG['default_theme'])) $ret = $_CONFIG['default_theme'];

	if (!isSessionVariableSet('mxchange_theme')) {
		// Set default theme
		set_session("mxchange_theme", $ret, (time() + 60*60*24*365), COOKIE_PATH);
	} elseif ((isSessionVariableSet('mxchange_theme')) && (GET_EXT_VERSION("sql_patches") >= "0.1.4")) {
		// Get theme from cookie
		$result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_themes WHERE theme_path='%s' LIMIT 1", array(get_session('mxchange_theme')), __FILE__, __LINE__);
		if (SQL_NUMROWS($result) == 1) {
			// Design is valid!
			$ret = get_session('mxchange_theme');
		}

		// Free memory
		SQL_FREERESULT($result);
	} elseif ((!isBooleanConstantAndTrue('mxchange_installed')) && ((isBooleanConstantAndTrue('mxchange_installing')) || ($CSS == true)) && ((!empty($_GET['theme'])) || (!empty($_POST['theme'])))) {
		// Prepare FQFN for checking
		$theme = sprintf("%stheme/%s/theme.php", PATH, $_GET['theme']);

		// Installation mode active
		if ((!empty($_GET['theme'])) && (file_exists($theme)) && (is_readable($theme))) {
			// Set cookie from URL data
			set_session("mxchange_theme", $_GET['theme'], (time() + 60*60*24*365), COOKIE_PATH);
		} elseif (file_exists(PATH."theme/".$_POST['theme']."/theme.php")) {
			// Set cookie from posted data
			set_session("mxchange_theme", $_POST['theme'], (time() + 60*60*24*365), COOKIE_PATH);
		}

		// Set return value
		$ret = get_session('mxchange_theme');
	} else {
		// Invalid design, reset cookie
		set_session("mxchange_theme", $ret, (time() + 60*60*24*365), COOKIE_PATH);
	}

	// Add (maybe) found theme.php file to inclusion list
	$theme = sprintf("%stheme/%s/theme.php", PATH, SQL_ESCAPE($ret));

	// Try to load the requested include file
	if ((@file_exists($theme)) && (is_readable($theme))) $INC_POOL[] = $theme;

	// Return theme value
	return $ret;
}

function THEME_SELECTION_BOX($mod, $act, $wht, $result)
{
	// Construction URL
	global $CurrTheme;
	$FORM = URL."/modules.php?module=".$mod;
	if (!empty($act)) $FORM .= "&amp;action=".$act;
	if (!empty($wht))   $FORM .= "&amp;what=".$wht;
	define('__FORM_VALUE', $FORM);

	// Initialize array
	$THEMES = array(
		'theme_unix'   => array(), // Unix name from filesystem
		'theme_name'   => array()  // Title
	);

	// Load all themes
	while(list($theme) = SQL_FETCHROW($result))
	{
		// Load it's theme.php file
		$INC = PATH."theme/".$theme."/theme.php";
		if (file_exists($INC))
		{
			// And save all data in array
			include($INC);
			$THEMES['theme_unix'][] = $theme;
			$THEMES['theme_name'][] = $THEME_NAME;
		}
	}

	// Sort whole array by title
	array_pk_sort($THEMES, array("theme_name"));

	// Construct selection form for the box template
	$OUT = "";
	foreach ($THEMES['theme_unix'] as $key=>$theme)
	{
		$OUT .= "  <OPTION value=\"".$theme."\"";
		if ($theme == $CurrTheme) $OUT .= " selected=\"selected\"";
		$OUT .= ">".$THEMES['theme_name'][$key]."</OPTION>\n";
	}

	// Return generated selection
	define('__THEME_SELECTION_OPTIONS', $OUT);
	$OUT = LOAD_TEMPLATE("theme_select_form", true);
	return $OUT;
}

// Initialize variables
$CurrTheme = GET_CURR_THEME();
if (empty($_POST['new_theme'])) $_POST['new_theme'] = "";

// Check if new theme is selcted
if ((!empty($_POST['new_theme'])) && ($_POST['new_theme'] != $CurrTheme))
{
	// Set new theme for guests
	$NewTheme = $_POST['new_theme'];

	// Change to new theme
	set_session("mxchange_theme", $NewTheme, (time() + 60*60*24*365), COOKIE_PATH);

	// Remove current from array and set new
	$theme = PATH."theme/".$CurrTheme."/theme.php";
	unset($INC_POOL[array_search($theme, $INC_POOL)]);
	$INC_POOL[] = PATH."theme/".$NewTheme."/theme.php";
}

// Remove variable again
unset($_POST['new_theme']);

//
?>