<?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                                   *
 * -------------------------------------------------------------------- *
 * $Revision::                                                        $ *
 * $Date::                                                            $ *
 * $Tag:: 0.2.1-FINAL                                                 $ *
 * $Author::                                                          $ *
 * Needs to be in all Files and every File needs "svn propset           *
 * svn:keywords Date Revision" (autoprobset!) at least!!!!!!            *
 * -------------------------------------------------------------------- *
 * 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 (!defined('__SECURITY')) {
	$INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), '/inc') + 4) . '/security.php';
	require($INC);
}

// Create a selection box with installed and activated themes or all if admin
function generateThemeSelectionBox () {
	// Init variables and fill them if set
	$what = '';
	$mod = getModule();
	if (isWhatSet()) {
		$what = getWhat();
	} // END - if

	// Construction URL
	$formAction = "{!URL!}/modules.php?module=" . $mod;
	if (!empty($what)) $formAction .= "&amp;what=" . $what;

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

	// Only activated themes for the user
	$add = " WHERE `theme_active`='Y'";

	// Do we have admin?
	if (IS_ADMIN()) $add = '';

	// Select all themes we want
	$result = SQL_QUERY("SELECT `theme_path`, `theme_name` FROM `{!_MYSQL_PREFIX!}_themes`".$add." ORDER BY `theme_name` ASC", __FILE__, __LINE__);

	// Load all themes
	while ($content = SQL_FETCHARRAY($result)) {
		// Construct relative include file name
		$INC = sprintf("theme/%s/theme.php", SQL_ESCAPE($content['theme_path']));

		// Load it's theme.php file if found
		if (isIncludeReadable($INC)) {
			// And save all data in array
			loadInclude($INC);
			$themesArray['theme_unix'][] = $content['theme_path'];
			$themesArray['theme_name'][] = $GLOBALS['theme_data']['name'];
		} // END - if
	} // END - while

	// Free the result
	SQL_FREERESULT($result);

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

	// Remember content
	$content = array(
		'form_action' => $formAction,
		'selection'   => $OUT
	);

	// Return generated selection
	return LOAD_TEMPLATE('theme_select_form', true, $content);
}

// Get version from name
function THEME_GET_VERSION ($name) {
	// Is the extension 'theme' installed?
	if (!EXT_IS_ACTIVE('theme')) {
		// Then abort here
		return '!.!';
	} // END - if

	// Default version 'number'
	$cver = '?.?';

	// Is the cache entry there?
	if (isset($GLOBALS['cache_array']['themes']['theme_ver'][$name])) {
		// Get the version from cache
		$cver = $GLOBALS['cache_array']['themes']['theme_ver'][$name];

		// Count up
		incrementConfigEntry('cache_hits');
	} elseif (GET_EXT_VERSION('cache') != '0.1.8') {
		// Load version from database
		$result = SQL_QUERY_ESC("SELECT `theme_ver` FROM `{!_MYSQL_PREFIX!}_themes` WHERE `theme_path`='%s' LIMIT 1",
			array($name), __FUNCTION__, __LINE__);

		// Entry found?
		if (SQL_NUMROWS($result) == 1) {
			// Fetch data
			list($cver) = SQL_FETCHROW($result);
		} // END - if

		// Free result
		SQL_FREERESULT($result);
	}

	// Return version
	return $cver;
}

// Checks wether a theme is found in db
function ifThemeExists ($name) {
	// Get theme and is it not nul?
	return (getThemeId($name) > 0);
}

// Checks if a theme is active
function isThemeActive ($name) {
	// Is the extension 'theme' installed?
	if (!EXT_IS_ACTIVE('theme')) {
		// Then abort here
		return false;
	} // END - if

	// Default is nothing active
	$active = false;

	// Is the cache entry there?
	if (isset($GLOBALS['cache_array']['themes']['theme_active'][$name])) {
		// Get the version from cache
		$active = ($GLOBALS['cache_array']['themes']['theme_active'][$name] == 'Y');

		// Count up
		incrementConfigEntry('cache_hits');
	} elseif (GET_EXT_VERSION('cache') != '0.1.8') {
		// Check if current theme is already imported or not
		$result = SQL_QUERY_ESC("SELECT `theme_active` FROM `{!_MYSQL_PREFIX!}_themes` WHERE `theme_path`='%s' AND `theme_active`='Y' LIMIT 1",
			array($name), __FUNCTION__, __LINE__);

		// Is the theme active and installed?
		$active = (SQL_NUMROWS($result) == 1);

		// Free result
		SQL_FREERESULT($result);
	}

	// Return result
	return $active;
}

// Gets current human-readable theme name
function getCurrentThemeName () {
	// Is the extension 'theme' installed?
	if (!EXT_IS_ACTIVE('theme')) {
		// Then abort here
		return 'default';
	} // END - if

	// Get the Uni* name
	$name = getCurrentTheme();

	// Is the cache entry there?
	if (isset($GLOBALS['cache_array']['themes']['theme_name'][$name])) {
		// Get the version from cache
		$name = $GLOBALS['cache_array']['themes']['theme_name'][$name];

		// Count up
		incrementConfigEntry('cache_hits');
	} elseif (GET_EXT_VERSION('cache') != '0.1.8') {
		// Check if current theme is already imported or not
		$result = SQL_QUERY_ESC("SELECT `theme_name` FROM `{!_MYSQL_PREFIX!}_themes` WHERE `theme_path`='%s' AND `theme_active`='Y' LIMIT 1",
			array($name), __FUNCTION__, __LINE__);

		// Load theme name
		list($name) = SQL_FETCHROW($result);

		// Free result
		SQL_FREERESULT($result);
	}

	// Return name
	return $name;
}

// Initialize variables
$GLOBALS['curr_theme'] = getCurrentTheme();

// Check if new theme is selcted
if ((REQUEST_ISSET_POST('new_theme')) && (REQUEST_POST('new_theme') != $GLOBALS['curr_theme'])) {
	// Set new theme for guests
	$newTheme = REQUEST_POST('new_theme');

	// Change to new theme
	setSession('mxchange_theme', $newTheme);

	// Remove current from array and set new
	$theme = sprintf("%stheme/%s/theme.php", constant('PATH'), $GLOBALS['curr_theme']);
	REMOVE_INC_FROM_POOL($theme);
	ADD_INC_TO_POOL(sprintf("%stheme/%s/theme.php", constant('PATH'), $newTheme));
} // END - if

// [EOF]
?>