<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2011 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".
 ********************************************************************************/


class SugarModule
{
    protected static $_instances = array();

    protected $_moduleName;

    public static function get(
        $moduleName
        )
    {
        if ( !isset(self::$_instances[$moduleName]) )
            self::$_instances[$moduleName] = new SugarModule($moduleName);

        return self::$_instances[$moduleName];
    }

    public function __construct(
        $moduleName
        )
    {
        $this->_moduleName = $moduleName;
    }

    /**
     * Returns true if the given module implements the indicated template
     *
     * @param  string $template
     * @return bool
     */
    public function moduleImplements(
        $template
        )
    {
        $focus = self::loadBean();

        if ( !$focus )
            return false;

        return is_a($focus,$template);
    }

    /**
     * Returns the bean object of the given module
     *
     * @return object
     */
    public function loadBean($beanList = null, $beanFiles = null, $returnObject = true)
    {
        // Populate these reference arrays
        if ( empty($beanList) ) {
            global $beanList;
        }
        if ( empty($beanFiles) ) {
            global $beanFiles;
        }
        if ( !isset($beanList) || !isset($beanFiles) ) {
            require('include/modules.php');
        }

        if ( isset($beanList[$this->_moduleName]) ) {
            $bean = $beanList[$this->_moduleName];
            if (isset($beanFiles[$bean])) {
                if ( !$returnObject ) {
                    return true;
                }
                if ( !sugar_is_file($beanFiles[$bean]) ) {
                    return false;
                }
                require_once($beanFiles[$bean]);
                $focus = new $bean;
            }
            else {
                return false;
            }
        }
        else {
            return false;
        }

        return $focus;
    }
}