<?php

if (!defined('sugarEntry') || !sugarEntry)
	die('Not A Valid Entry Point');
/* * *******************************************************************************
 * SugarCRM is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2010 SugarCRM Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 * 
 * 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 Affero General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo. If the display of the logo is not reasonably feasible for
 * technical reasons, the Appropriate Legal Notices must display the words
 * "Powered by SugarCRM".
 * ****************************************************************************** */

/* * *******************************************************************************

 * Description:  Contains a variety of utility functions used to display UI
 * components such as form headers and footers.  Intended to be modified on a per
 * theme basis.
 * ****************************************************************************** */

if (!defined('JSMIN_AS_LIB'))
	define('JSMIN_AS_LIB', true);

require_once("include/SugarTheme/cssmin.php");
require_once("jssource/jsmin.php");
require_once('include/utils/sugar_file_utils.php');

/**
 * Class that provides tools for working with a theme.
 */
class SugarTheme {
	public static $cached_results;
	/**
	 * Theme name
	 *
	 * @var string
	 */
	protected $name;

	/**
	 * Theme description
	 *
	 * @var string
	 */
	protected $description;

	/**
	 * Theme directory name
	 *
	 * @var string
	 */
	protected $dirName;

	/**
	 * Parent theme name
	 * 
	 * @var string
	 */
	protected $parentTheme;

	/**
	 * Colors sets provided by the theme
	 * 
	 * @deprecated only here for BC during upgrades
	 * @var array
	 */
	protected $colors = array();

	/**
	 * Font sets provided by the theme
	 *
	 * @deprecated only here for BC during upgrades
	 * @var array
	 */
	protected $fonts = array();

	/**
	 * Maximum sugar version this theme is for; defaults to 5.5.1 as all the themes without this
	 * parameter as assumed to work thru 5.5.1
	 *
	 * @var int
	 */
	protected $version = '5.5.1';

	/**
	 * Colors used in bar charts
	 *
	 * @var array
	 */
	protected $barChartColors = array(
		"docBorder" => "0xffffff",
		"docBg1" => "0xffffff",
		"docBg2" => "0xffffff",
		"xText" => "0x33485c",
		"yText" => "0x33485c",
		"title" => "0x333333",
		"misc" => "0x999999",
		"altBorder" => "0xffffff",
		"altBg" => "0xffffff",
		"altText" => "0x666666",
		"graphBorder" => "0xcccccc",
		"graphBg1" => "0xf6f6f6",
		"graphBg2" => "0xf6f6f6",
		"graphLines" => "0xcccccc",
		"graphText" => "0x333333",
		"graphTextShadow" => "0xf9f9f9",
		"barBorder" => "0xeeeeee",
		"barBorderHilite" => "0x333333",
		"legendBorder" => "0xffffff",
		"legendBg1" => "0xffffff",
		"legendBg2" => "0xffffff",
		"legendText" => "0x444444",
		"legendColorKeyBorder" => "0x777777",
		"scrollBar" => "0xcccccc",
		"scrollBarBorder" => "0xeeeeee",
		"scrollBarTrack" => "0xeeeeee",
		"scrollBarTrackBorder" => "0xcccccc",
	);

	/**
	 * Colors used in pie charts
	 *
	 * @var array
	 */
	protected $pieChartColors = array(
		"docBorder" => "0xffffff",
		"docBg1" => "0xffffff",
		"docBg2" => "0xffffff",
		"title" => "0x333333",
		"subtitle" => "0x666666",
		"misc" => "0x999999",
		"altBorder" => "0xffffff",
		"altBg" => "0xffffff",
		"altText" => "0x666666",
		"graphText" => "0x33485c",
		"graphTextShadow" => "0xf9f9f9",
		"pieBorder" => "0xffffff",
		"pieBorderHilite" => "0x333333",
		"legendBorder" => "0xffffff",
		"legendBg1" => "0xffffff",
		"legendBg2" => "0xffffff",
		"legendText" => "0x444444",
		"legendColorKeyBorder" => "0x777777",
		"scrollBar" => "0xdfdfdf",
		"scrollBarBorder" => "0xfafafa",
		"scrollBarTrack" => "0xeeeeee",
		"scrollBarTrackBorder" => "0xcccccc",
	);

	/**
	 * Cache built of all css files locations
	 *
	 * @var array
	 */
	private $_cssCache = array();

	/**
	 * Cache built of all image files locations
	 *
	 * @var array
	 */
	private $_imageCache = array();

	/**
	 * Cache built of all javascript files locations
	 *
	 * @var array
	 */
	private $_jsCache = array();

	/**
	 * Cache built of all template files locations
	 *
	 * @var array
	 */
	private $_templateCache = array();

	/**
	 * Size of the caches after the are initialized in the constructor
	 *
	 * @var array
	 */
	private $_initialCacheSize = array(
		'cssCache' => 0,
		'imageCache' => 0,
		'jsCache' => 0,
		'templateCache' => 0,
	);

	/**
	 * Controls whether or not to clear the cache on destroy; defaults to false
	 */
	private $_clearCacheOnDestroy = false;
	private $imageExtensions = array(
		'gif',
		'png',
		'jpg',
		'tif',
		'bmp',
	);

	/**
	 * Constructor
	 *
	 * Sets the theme properties from the defaults passed to it, and loads the file path cache from an external cache
	 *
	 * @param  $defaults string defaults for the current theme
	 */
	public function __construct(
	$defaults
	) { $this->cached_results= array();
		if (isset($defaults['parentTheme'])) {
			$themedef = array();
			include("themes/{$defaults['parentTheme']}/themedef.php");
			foreach ($themedef as $key => $value) {
				if (property_exists(__CLASS__, $key)) {
					// For all arrays ( except colors and fonts ) you can just specify the items 
					// to change instead of all of the values
					if (is_array($this->$key) && !in_array($key, array('colors', 'fonts'))) {
						$this->$key = array_merge($this->$key, $value);
					} else {
						$this->$key = $value;
					}
				}
			}
		}
		foreach ($defaults as $key => $value) {
			if (property_exists(__CLASS__, $key)) {
				// For all arrays ( except colors and fonts ) you can just specify the items 
				// to change instead of all of the values
				if (is_array($this->$key) && !in_array($key, array('colors', 'fonts'))) {
					$this->$key = array_merge($this->$key, $value);
				} else {
					$this->$key = $value;
				}
			}
		}
		if (!inDeveloperMode()) {
			// load stored theme cache from sugar cache if it's there
			if ($GLOBALS['external_cache_enabled'] && $GLOBALS['external_cache_type'] != 'base-in-memory') {
				$this->_jsCache = sugar_cache_retrieve('theme_' . $this->dirName . '_jsCache');
				$this->_cssCache = sugar_cache_retrieve('theme_' . $this->dirName . '_cssCache');
				$this->_imageCache = sugar_cache_retrieve('theme_' . $this->dirName . '_imageCache');
				$this->_templateCache = sugar_cache_retrieve('theme_' . $this->dirName . '_templateCache');
			}

			// otherwise, see if we serialized them to a file
			elseif (sugar_is_file($GLOBALS['sugar_config']['cache_dir'] . $this->getFilePath() . '/pathCache.php')) {
				$caches = unserialize(file_get_contents($GLOBALS['sugar_config']['cache_dir'] . $this->getFilePath() . '/pathCache.php'));
				if (isset($caches['jsCache'])) {
					$this->_jsCache = $caches['jsCache'];
				}
				if (isset($caches['cssCache'])) {
					$this->_cssCache = $caches['cssCache'];
				}
				if (isset($caches['imageCache'])) {
					$this->_imageCache = $caches['imageCache'];
				}
				if (isset($caches['templateCache'])) {
					$this->_templateCache = $caches['templateCache'];
				}
			}
		}
		$this->_initialCacheSize = array(
			'jsCache' => count($this->_jsCache),
			'cssCache' => count($this->_cssCache),
			'imageCache' => count($this->_imageCache),
			'templateCache' => count($this->_templateCache),
		);
	}

	/**
	 * Destructor
	 * Here we'll write out the internal file path caches to an external cache of some sort.
	 */
	public function __destruct() {
		// Bug 28309 - Set the current directory to one which we expect it to be (i.e. the root directory of the install
		set_include_path(realpath(dirname(__FILE__) . '/../..') . PATH_SEPARATOR . get_include_path());
		chdir(realpath(dirname(__FILE__) . '/../..'));

		// Bug 30807/30808 - Re-setup the external cache since the object isn't there when calling this method.
		$GLOBALS['external_cache_checked'] = false;
		check_cache();
		// clear out the cache on destroy if we are asked to
		if ($this->_clearCacheOnDestroy) {
			if (is_file($GLOBALS['sugar_config']['cache_dir'] . $this->getFilePath() . '/pathCache.php'))
				unlink($GLOBALS['sugar_config']['cache_dir'] . $this->getFilePath() . '/pathCache.php');
			if ($GLOBALS['external_cache_enabled'] && $GLOBALS['external_cache_type'] != 'base-in-memory') {
				sugar_cache_clear('theme_' . $this->dirName . '_jsCache');
				sugar_cache_clear('theme_' . $this->dirName . '_cssCache');
				sugar_cache_clear('theme_' . $this->dirName . '_imageCache');
				sugar_cache_clear('theme_' . $this->dirName . '_templateCache');
			}
		} elseif (!inDeveloperMode()) {
			// push our cache into the sugar cache
			if ($GLOBALS['external_cache_enabled'] && $GLOBALS['external_cache_type'] != 'base-in-memory') {
				// only update the caches if they have been changed in this request
				if (count($this->_jsCache) != $this->_initialCacheSize['jsCache'])
					sugar_cache_put('theme_' . $this->dirName . '_jsCache', $this->_jsCache);
				if (count($this->_cssCache) != $this->_initialCacheSize['cssCache'])
					sugar_cache_put('theme_' . $this->dirName . '_cssCache', $this->_cssCache);
				if (count($this->_imageCache) != $this->_initialCacheSize['imageCache'])
					sugar_cache_put('theme_' . $this->dirName . '_imageCache', $this->_imageCache);
				if (count($this->_templateCache) != $this->_initialCacheSize['templateCache'])
					sugar_cache_put('theme_' . $this->dirName . '_templateCache', $this->_templateCache);
			}
			// fallback in case there is no useful external caching available
			// only update the caches if they have been changed in this request

			elseif (count($this->_jsCache) != $this->_initialCacheSize['jsCache'] || count($this->_cssCache) != $this->_initialCacheSize['cssCache'] || count($this->_imageCache) != $this->_initialCacheSize['imageCache'] || count($this->_templateCache) != $this->_initialCacheSize['templateCache']
			) {
				sugar_file_put_contents(
						create_cache_directory($this->getFilePath() . '/pathCache.php'), serialize(
								array(
									'jsCache' => $this->_jsCache,
									'cssCache' => $this->_cssCache,
									'imageCache' => $this->_imageCache,
									'templateCache' => $this->_templateCache,
								)
						)
				);
			}
		}

		// clear out the cache if we are in developerMode 
		// ( so it will be freshly rebuilt for the next load )
		elseif ($GLOBALS['external_cache_enabled']) {
			sugar_cache_clear('theme_' . $this->dirName . '_jsCache');
			sugar_cache_clear('theme_' . $this->dirName . '_cssCache');
			sugar_cache_clear('theme_' . $this->dirName . '_imageCache');
			sugar_cache_clear('theme_' . $this->dirName . '_templateCache');
		}
	}

	/**
	 * Specifies what is returned when the object is cast to a string, in this case it will be the
	 * theme directory name.
	 *
	 * @return string theme directory name
	 */
	public function __toString() {
		return $this->dirName;
	}

	/**
	 * Generic public accessor method for all the properties of the theme ( which are kept protected )
	 *
	 * @return string
	 */
	public function __get(
	$key
	) {
		if (isset($this->$key))
			return $this->$key;
	}

	public function __isset($key) {
		return isset($this->$key);
	}

	/**
	 * Clears out the caches used for this themes
	 */
	public function clearCache() {
		$this->_clearCacheOnDestroy = true;
	}

	/**
	 * Return array of all valid fields that can be specified in the themedef.php file
	 * 
	 * @return array
	 */
	public static function getThemeDefFields() {
		return array(
			'name',
			'description',
			'dirName',
			'parentTheme',
			'version',
			'colors',
			'fonts',
			'barChartColors',
			'pieChartColors',
		);
	}

	/**
	 * Returns the file path of the current theme
	 *
	 * @return string
	 */
	public function getFilePath() {
		return 'themes/' . $this->dirName;
	}

	/**
	 * Returns the image path of the current theme
	 *
	 * @return string
	 */
	public function getImagePath() {
		return $this->getFilePath() . '/images';
	}

	/**
	 * Returns the css path of the current theme
	 *
	 * @return string
	 */
	public function getCSSPath() {
		return $this->getFilePath() . '/css';
	}

	/**
	 * Returns the javascript path of the current theme
	 *
	 * @return string
	 */
	public function getJSPath() {
		return $this->getFilePath() . '/js';
	}

	/**
	 * Returns the tpl path of the current theme
	 *
	 * @return string
	 */
	public function getTemplatePath() {
		return $this->getFilePath() . '/tpls';
	}

	/**
	 * Returns the file path of the theme defaults
	 *
	 * @return string
	 */
	public final function getDefaultFilePath() {
		return 'themes/default';
	}

	/**
	 * Returns the image path of the theme defaults
	 *
	 * @return string
	 */
	public final function getDefaultImagePath() {
		return $this->getDefaultFilePath() . '/images';
	}

	/**
	 * Returns the css path of the theme defaults
	 *
	 * @return string
	 */
	public final function getDefaultCSSPath() {
		return $this->getDefaultFilePath() . '/css';
	}

	/**
	 * Returns the template path of the theme defaults
	 *
	 * @return string
	 */
	public final function getDefaultTemplatePath() {
		return $this->getDefaultFilePath() . '/tpls';
	}

	/**
	 * Returns the javascript path of the theme defaults
	 *
	 * @return string
	 */
	public final function getDefaultJSPath() {
		return $this->getDefaultFilePath() . '/js';
	}

	/**
	 * Returns CSS for the current theme.
	 * 
	 * @param  $color string optional, specifies the css color file to use if the theme supports it; defaults to cookie value or theme default
	 * @param  $font  string optional, specifies the css font file to use if the theme supports it; defaults to cookie value or theme default
	 * @return string HTML code
	 */
	public function getCSS(
	$color = null, $font = null
	) {
		// include style.css file
		$html = '<link rel="stylesheet" type="text/css" href="' . $this->getCSSURL('yui.css') . '" />';
		$html .= '<link rel="stylesheet" type="text/css" href="' . $this->getCSSURL('deprecated.css') . '" />';
		$html .= '<link rel="stylesheet" type="text/css" href="' . $this->getCSSURL('style.css') . '" />';

		// for BC during upgrade
		if (!empty($this->colors)) {
			if (isset($_SESSION['authenticated_user_theme_color']) && in_array($_SESSION['authenticated_user_theme_color'], $this->colors))
				$color = $_SESSION['authenticated_user_theme_color'];
			else
				$color = $this->colors[0];
			$html .= '<link rel="stylesheet" type="text/css" href="' . $this->getCSSURL('colors.' . $color . '.css') . '" id="current_color_style" />';
		}

		if (!empty($this->fonts)) {
			if (isset($_SESSION['authenticated_user_theme_font']) && in_array($_SESSION['authenticated_user_theme_font'], $this->fonts))
				$font = $_SESSION['authenticated_user_theme_font'];
			else
				$font = $this->fonts[0];
			$html .= '<link rel="stylesheet" type="text/css" href="' . $this->getCSSURL('fonts.' . $font . '.css') . '" id="current_font_style" />';
		}

		return $html;
	}

	/**
	 * Returns javascript for the current theme
	 * 
	 * @return string HTML code
	 */
	public function getJS() {
		$styleJS = $this->getJSURL('style.js');
		return <<<EOHTML
<script type="text/javascript" src="$styleJS"></script>
EOHTML;
	}

	/**
	 * Returns the path for the tpl file in the current theme. If not found in the current theme, will revert
	 * to looking in the base theme.
	 * 
	 * @param  string $templateName tpl file name
	 * @return string path of tpl file to include
	 */
	public function getTemplate(
	$templateName
	) {
		if (isset($this->_templateCache[$templateName])) {
			return $this->_templateCache[$templateName];
		}
		$templatePath = '';
		if (sugar_is_file('custom/' . $this->getTemplatePath() . '/' . $templateName))
			$templatePath = 'custom/' . $this->getTemplatePath() . '/' . $templateName;
		elseif (sugar_is_file($this->getTemplatePath() . '/' . $templateName))
			$templatePath = $this->getTemplatePath() . '/' . $templateName;
		elseif (isset($this->parentTheme) && SugarThemeRegistry::get($this->parentTheme) instanceOf SugarTheme && ($filename = SugarThemeRegistry::get($this->parentTheme)->getTemplate($templateName)) != '')
			$templatePath = $filename;
		elseif (sugar_is_file('custom/' . $this->getDefaultTemplatePath() . '/' . $templateName))
			$templatePath = 'custom/' . $this->getDefaultTemplatePath() . '/' . $templateName;
		elseif (sugar_is_file($this->getDefaultTemplatePath() . '/' . $templateName))
			$templatePath = $this->getDefaultTemplatePath() . '/' . $templateName;
		else {
			$GLOBALS['log']->warn("Template $templateName not found");
			return false;
		}

		$this->_imageCache[$templateName] = $templatePath;

		return $templatePath;
	}

	/**
	 * Returns an image tag for the given image.
	 *
	 * @param  string $image image name
	 * @param  string $other_attributes optional, other attributes to add to the image tag, not cached
	 * @param  string $width optional, defaults to the actual image's width
	 * @param  string $height optional, defaults to the actual image's height
	 * @return string HTML image tag
	 */
	public function getImage(
	$imageName, $other_attributes = '', $width = null, $height = null, $ext = '.gif'
	) {
		$cached_results = $this->cached_results;
	//	static $cached_results = array();
		$imageName .= $ext;
		if (!empty($cached_results[$imageName])) {
			return $cached_results[$imageName] . "$other_attributes />";
		}

		$imageURL = $this->getImageURL($imageName, false);
		if (empty($imageURL)) {
			return false;
		}

		$size = getimagesize($imageURL);
		if (is_null($width)) {
			$width = $size[0];
		}
		if (is_null($height)) {
			$height = $size[1];
		}

		// Cache everything but the other attributes....
		$cached_results[$imageName] = "<img src=\"" . getJSPath($imageURL) . "\" width=\"$width\" height=\"$height\" ";
		$this->cached_results[$imageName] = "<img src=\"" . getJSPath($imageURL) . "\" width=\"$width\" height=\"$height\" ";
		return $cached_results[$imageName] . "$other_attributes />";
	}

	/**
	 * Returns the URL for an image in the current theme. If not found in the current theme, will revert
	 * to looking in the base theme.
	 * 
	 * @param  string $imageName image file name
	 * @param  bool   $addJSPath call getJSPath() with the results to add some unique image tracking support
	 * @return string path to image
	 */
	public function getImageURL(
	$imageName, $addJSPath = true
	) {
		if (isset($this->_imageCache[$imageName])) {
			if ($addJSPath) {
				return getJSPath($this->_imageCache[$imageName]);
			} else {
				return $this->_imageCache[$imageName];
			}
		}

		$imagePath = '';
		if (($filename = $this->_getImageFileName('custom/' . $this->getImagePath() . '/' . $imageName)) != '') {
			$imagePath = $filename;
		} elseif (($filename = $this->_getImageFileName($this->getImagePath() . '/' . $imageName)) != '') {
			$imagePath = $filename;
		} elseif (isset($this->parentTheme) && SugarThemeRegistry::get($this->parentTheme) instanceOf SugarTheme && ($filename = SugarThemeRegistry::get($this->parentTheme)->getImageURL($imageName, false)) != '') {
			$imagePath = $filename;
		} elseif (($filename = $this->_getImageFileName('custom/' . $this->getDefaultImagePath() . '/' . $imageName)) != '') {
			$imagePath = $filename;
		} elseif (($filename = $this->_getImageFileName($this->getDefaultImagePath() . '/' . $imageName)) != '') {
			$imagePath = $filename;
		} else {
			$GLOBALS['log']->warn("Image $imageName not found");
			return false;
		}

		$this->_imageCache[$imageName] = $imagePath;

		if ($addJSPath) {
			return getJSPath($imagePath);
		}

		return $imagePath;
	}

	/**
	 * Checks for an image using all of the accepted image extensions
	 *
	 * @param  string $imageName image file name
	 * @return string path to image
	 */
	protected function _getImageFileName(
	$imageName
	) {
		// return now if the extension matches that of which we are looking for
		if (sugar_is_file($imageName))
			return $imageName;
		$pathParts = pathinfo($imageName);
		foreach ($this->imageExtensions as $extension)
			if (isset($pathParts['extension']))
				if (( $extension != $pathParts['extension'] ) && sugar_is_file($pathParts['dirname'] . '/' . $pathParts['filename'] . '.' . $extension))
					return $pathParts['dirname'] . '/' . $pathParts['filename'] . '.' . $extension;

		return '';
	}

	/**
	 * Returns the URL for the css file in the current theme. If not found in the current theme, will revert
	 * to looking in the base theme.
	 * 
	 * @param  string $cssFileName css file name
	 * @param  bool   $addJSPath call getJSPath() with the results to add some unique image tracking support
	 * @return string path of css file to include
	 */
	public function getCSSURL(
	$cssFileName, $addJSPath = true
	) {
		if (isset($this->_cssCache[$cssFileName])) {
			if ($addJSPath)
				return getJSPath($this->_cssCache[$cssFileName]);
			else
				return $this->_cssCache[$cssFileName];
		}

		$cssFileContents = '';
		if (isset($this->parentTheme) && SugarThemeRegistry::get($this->parentTheme) instanceOf SugarTheme && ($filename = SugarThemeRegistry::get($this->parentTheme)->getCSSURL($cssFileName, false)) != '')
			$cssFileContents .= file_get_contents($filename);
		else {
			if (sugar_is_file($this->getDefaultCSSPath() . '/' . $cssFileName))
				$cssFileContents .= file_get_contents($this->getDefaultCSSPath() . '/' . $cssFileName);
			if (sugar_is_file('custom/' . $this->getDefaultCSSPath() . '/' . $cssFileName))
				$cssFileContents .= file_get_contents('custom/' . $this->getDefaultCSSPath() . '/' . $cssFileName);
		}
		if (sugar_is_file($this->getCSSPath() . '/' . $cssFileName))
			$cssFileContents .= file_get_contents($this->getCSSPath() . '/' . $cssFileName);
		if (sugar_is_file('custom/' . $this->getCSSPath() . '/' . $cssFileName))
			$cssFileContents .= file_get_contents('custom/' . $this->getCSSPath() . '/' . $cssFileName);
		if (empty($cssFileContents)) {
			$GLOBALS['log']->warn("CSS File $cssFileName not found");
			return false;
		}

		// fix any image references that may be defined in css files
		$cssFileContents = str_ireplace("entryPoint=getImage&", "entryPoint=getImage&themeName={$this->dirName}&", $cssFileContents);

		// create the cached file location
		$cssFilePath = create_cache_directory($this->getCSSPath() . "/$cssFileName");

		// if this is the style.css file, prepend the base.css and calendar-win2k-cold-1.css 
		// files before the theme styles
		if ($cssFileName == 'style.css' && !isset($this->parentTheme)) {
			$cssFileContents = file_get_contents('jscalendar/calendar-win2k-cold-1.css') . $cssFileContents;
			if (inDeveloperMode())
				$cssFileContents = file_get_contents('include/javascript/yui/build/base/base.css') . $cssFileContents;
			else
				$cssFileContents = file_get_contents('include/javascript/yui/build/base/base-min.css') . $cssFileContents;
		}

		// minify the css
		if (!inDeveloperMode() && !sugar_is_file($cssFilePath)) {
			$cssFileContents = cssmin::minify($cssFileContents);
		}

		// now write the css to cache
		sugar_file_put_contents($cssFilePath, $cssFileContents);

		$this->_cssCache[$cssFileName] = $cssFilePath;

		if ($addJSPath)
			return getJSPath($cssFilePath);

		return $cssFilePath;
	}

	/**
	 * Returns the URL for an image in the current theme. If not found in the current theme, will revert
	 * to looking in the base theme.
	 * 
	 * @param  string $jsFileName js file name
	 * @param  bool   $addJSPath call getJSPath() with the results to add some unique image tracking support
	 * @return string path to js file
	 */
	public function getJSURL(
	$jsFileName, $addJSPath = true
	) {
		if (isset($this->_jsCache[$jsFileName])) {
			if ($addJSPath)
				return getJSPath($this->_jsCache[$jsFileName]);
			else
				return $this->_jsCache[$jsFileName];
		}

		$jsFileContents = '';

		if (isset($this->parentTheme) && SugarThemeRegistry::get($this->parentTheme) instanceOf SugarTheme && ($filename = SugarThemeRegistry::get($this->parentTheme)->getJSURL($jsFileName, false)) != '')
			$jsFileContents .= file_get_contents($filename);
		else {
			if (sugar_is_file($this->getDefaultJSPath() . '/' . $jsFileName))
				$jsFileContents .= file_get_contents($this->getDefaultJSPath() . '/' . $jsFileName);
			if (sugar_is_file('custom/' . $this->getDefaultJSPath() . '/' . $jsFileName))
				$jsFileContents .= file_get_contents('custom/' . $this->getDefaultJSPath() . '/' . $jsFileName);
		}
		if (sugar_is_file($this->getJSPath() . '/' . $jsFileName))
			$jsFileContents .= file_get_contents($this->getJSPath() . '/' . $jsFileName);
		if (sugar_is_file('custom/' . $this->getJSPath() . '/' . $jsFileName))
			$jsFileContents .= file_get_contents('custom/' . $this->getJSPath() . '/' . $jsFileName);
		if (empty($jsFileContents)) {
			$GLOBALS['log']->warn("Javascript File $jsFileName not found");
			return false;
		}

		// create the cached file location
		$jsFilePath = create_cache_directory($this->getJSPath() . "/$jsFileName");

		// minify the js
		if (!inDeveloperMode() && !sugar_is_file(str_replace('.js', '-min.js', $jsFilePath))) {
			$jsFileContents = JSMin::minify($jsFileContents);
			$jsFilePath = str_replace('.js', '-min.js', $jsFilePath);
		}

		// now write the js to cache
		sugar_file_put_contents($jsFilePath, $jsFileContents);

		$this->_jsCache[$jsFileName] = $jsFilePath;

		if ($addJSPath)
			return getJSPath($jsFilePath);

		return $jsFilePath;
	}

	/**
	 * Returns an array of all of the images available for the current theme
	 *
	 * @return array
	 */
	public function getAllImages() {
		// first, lets get all the paths of where to look
		$pathsToSearch = array($this->getImagePath());
		$theme = $this;
		while (isset($theme->parentTheme) && SugarThemeRegistry::get($theme->parentTheme) instanceOf SugarTheme) {
			$theme = SugarThemeRegistry::get($theme->parentTheme);
			$pathsToSearch[] = $theme->getImagePath();
		}
		$pathsToSearch[] = $this->getDefaultImagePath();

		// now build the array
		$imageArray = array();
		foreach ($pathsToSearch as $path) {
			if (!sugar_is_dir($path))
				$path = "custom/$path";
			if (sugar_is_dir($path) && $dir = opendir($path)) {
				while (($file = readdir($dir)) !== false) {
					if ($file == ".." || $file == "." || $file == ".svn" || $file == "CVS" || $file == "Attic"
					)
						continue;
					if (!isset($imageArray[$file]))
						$imageArray[$file] = $this->getImageURL($file, false);
				}
				closedir($dir);
			}
		}

		ksort($imageArray);

		return $imageArray;
	}

}

/**
 * Registry for all the current classes in the system
 */
class SugarThemeRegistry {

	/**
	 * Array of all themes and thier object
	 *
	 * @var array
	 */
	private static $_themes = array();

	/**
	 * Name of the current theme; corresponds to an index key in SugarThemeRegistry::$_themes
	 *
	 * @var string
	 */
	private static $_currentTheme;

	/**
	 * Disable the constructor since this will be a singleton
	 */
	private function __construct() {
		
	}

	/**
	 * Adds a new theme to the registry
	 *
	 * @param $themedef array
	 */
	public static function add(
	array $themedef
	) {
		// make sure the we know the sugar version
		if (!isset($GLOBALS['sugar_version'])) {
			include('sugar_version.php');
			$GLOBALS['sugar_version'] = $sugar_version;
		}

		// Assume theme is designed for 5.5.x if not specified otherwise
		if (!isset($themedef['version']))
			$themedef['version']['regex_matches'] = array('5\.5\.*');

		// Check to see if theme is valid for this version of Sugar; return false if not
		$version_ok = false;
		if (isset($themedef['version']['exact_matches'])) {
			$matches_empty = false;
			foreach ($themedef['version']['exact_matches'] as $match) {
				if ($match == $GLOBALS['sugar_version']) {
					$version_ok = true;
				}
			}
		}
		if (!$version_ok && isset($themedef['version']['regex_matches'])) {
			$matches_empty = false;
			foreach ($themedef['version']['regex_matches'] as $match) {
				if (preg_match("/$match/", $GLOBALS['sugar_version'])) {
					$version_ok = true;
				}
			}
		}
		if (!$version_ok)
			return false;

		$theme = new SugarTheme($themedef);
		self::$_themes[$theme->dirName] = $theme;
	}

	/**
	 * Removes a new theme from the registry
	 *
	 * @param $themeName string
	 */
	public static function remove(
	$themeName
	) {
		if (self::exists($themeName))
			unset(self::$_themes[$themeName]);
	}

	/**
	 * Returns a theme object in the registry specified by the given $themeName
	 *
	 * @param $themeName string
	 */
	public static function get(
	$themeName
	) {
		if (isset(self::$_themes[$themeName]))
			return self::$_themes[$themeName];
	}

	/**
	 * Returns the current theme object
	 *
	 */
	public static function current() {
		if (!isset(self::$_currentTheme))
			self::buildRegistry();

		return self::$_themes[self::$_currentTheme];
	}

	/**
	 * Returns true if a theme object specified by the given $themeName exists in the registry
	 *
	 * @param  $themeName string
	 * @return bool
	 */
	public static function exists(
	$themeName
	) {
		return (self::get($themeName) !== null);
	}

	/**
	 * Sets the given $themeName to be the current theme
	 *
	 * @param  $themeName string
	 */
	public static function set(
	$themeName
	) {
		if (!self::exists($themeName))
			return false;

		self::$_currentTheme = $themeName;

		// set some of the expected globals
		$GLOBALS['barChartColors'] = self::current()->barChartColors;
		$GLOBALS['pieChartColors'] = self::current()->pieChartColors;
	}

	/**
	 * Builds the theme registry
	 */
	public static function buildRegistry() {
		self::$_themes = array();
		$dirs = array("themes/", "custom/themes/");

		// check for a default themedef file
		$themedefDefault = array();
		if (sugar_is_file("custom/themes/default/themedef.php")) {
			$themedef = array();
			require("custom/themes/default/themedef.php");
			$themedefDefault = $themedef;
		}

		foreach ($dirs as $dirPath) {
			if (sugar_is_dir('./' . $dirPath) && $dir = opendir('./' . $dirPath)) {
				while (($file = readdir($dir)) !== false) {
					if ($file == ".." || $file == "." || $file == ".svn" || $file == "CVS" || $file == "Attic" || $file == "default" || !sugar_is_dir("./$dirPath" . $file) || !sugar_is_file("./{$dirPath}{$file}/themedef.php")
					)
						continue;
					$themedef = array();
					require("./{$dirPath}{$file}/themedef.php");
					$themedef = array_merge($themedef, $themedefDefault);
					$themedef['dirName'] = $file;
					// check for theme already existing in the registry
					// if so, then it will override the current one
					if (self::exists($themedef['dirName'])) {
						$existingTheme = self::get($themedef['dirName']);
						foreach (SugarTheme::getThemeDefFields() as $field)
							if (!isset($themedef[$field]))
								$themedef[$field] = $existingTheme->$field;
						self::remove($themedef['dirName']);
					}
					if (isset($themedef['name'])) {
						self::add($themedef);
					}
				}
				closedir($dir);
			}
		}

		// default to setting the default theme as the current theme
		if (!self::set($GLOBALS['sugar_config']['default_theme'])) {
			if (count(self::availableThemes()) == 0)
				sugar_die('No valid themes are found on this instance');
			else
				self::set(array_pop(array_keys(self::availableThemes())));
		}
	}

	/**
	 * Returns an array of available themes. Designed to be absorbed into get_select_options_with_id()
	 *
	 * @return array
	 */
	public static function availableThemes() {
		$themelist = array();
		$disabledThemes = array();
		if (isset($GLOBALS['sugar_config']['disabled_themes']))
			$disabledThemes = explode(',', $GLOBALS['sugar_config']['disabled_themes']);

		foreach (self::$_themes as $themename => $themeobject) {
			if (in_array($themename, $disabledThemes))
				continue;
			$themelist[$themeobject->dirName] = $themeobject->name;
		}
		asort($themelist, SORT_STRING);
		return $themelist;
	}

	/**
	 * Returns an array of un-available themes. Designed used with the theme selector in the admin panel
	 *
	 * @return array
	 */
	public static function unAvailableThemes() {
		$themelist = array();
		$disabledThemes = array();
		if (isset($GLOBALS['sugar_config']['disabled_themes']))
			$disabledThemes = explode(',', $GLOBALS['sugar_config']['disabled_themes']);

		foreach (self::$_themes as $themename => $themeobject) {
			if (in_array($themename, $disabledThemes))
				$themelist[$themeobject->dirName] = $themeobject->name;
		}

		return $themelist;
	}

	/**
	 * Returns an array of all themes found in the current installation
	 *
	 * @return array
	 */
	public static function allThemes() {
		$themelist = array();

		foreach (self::$_themes as $themename => $themeobject)
			$themelist[$themeobject->dirName] = $themeobject->name;

		return $themelist;
	}

	/**
	 * Clears out the cached path locations for all themes
	 */
	public static function clearAllCaches() {
		foreach (self::$_themes as $themeobject) {
			$themeobject->clearCache();
		}
	}

}