<?php

/**
 * @package   	JCE
 * @copyright 	Copyright (c) 2009-2013 Ryan Demmer. All rights reserved.
 * @license   	GNU/GPL 2 or later - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * JCE is free software. This version may have been modified pursuant
 * to the GNU General Public License, and as distributed it includes or
 * is derivative of works licensed under the GNU General Public License or
 * other free or open source software licenses.
 */
defined('_JEXEC') or die('RESTRICTED');

class WFAggregatorExtension extends WFExtension {

    protected static $instance;

    /**
     * Constructor activating the default information of the class
     *
     * @access	protected
     */
    public function __construct($config = array()) {
        parent::__construct($config);
    }

    /**
     * Returns a reference to a plugin object
     *
     * This method must be invoked as:
     * 		<pre>  $advlink =AdvLink::getInstance();</pre>
     *
     * @access	public
     * @return	JCE  The editor object.
     * @since	1.5
     */
    public static function getInstance($config = array()) {
        if (!isset(self::$instance)) {
            self::$instance = new WFAggregatorExtension($config);
        }

        return self::$instance;
    }

    public function getName() {
        return $this->get('name');
    }

    public function getTitle() {
        return $this->get('title');
    }

    public function display() {
        parent::display();

        $document = WFDocument::getInstance();

        // Load javascript
        $document->addScript(array('extensions/aggregator'), 'libraries');

        $aggregators = $this->getAggregators();

        foreach ($aggregators as $aggregator) {
            $aggregator->display();

            $params = $aggregator->getParams();

            if (!empty($params)) {
                $document->addScriptDeclaration('WFExtensions.Aggregator.setParams("' . $aggregator->getName() . '",' . json_encode($params) . ');');
            }
        }
    }

    public function & getAggregators() {
        static $aggregators;

        if (!isset($aggregators)) {
            $aggregators = array();
        }

        // get the aggregator format for this instance
        $format = $this->get('format');

        if (empty($aggregators[$format])) {
            jimport('joomla.filesystem.folder');

            // get a plugin instance
            $plugin = WFEditorPlugin::getInstance();

            $aggregators[$format] = array();

            $path = WF_EDITOR_EXTENSIONS . '/aggregator';
            $files = JFolder::files($path, '\.php$', false, true);

            foreach ($files as $file) {
                require_once ($file);

                $name = basename($file, '.php');
                $classname = 'WFAggregatorExtension_' . ucfirst($name);

                // only load if enabled
                if (class_exists($classname)) {
                    $aggregator = new $classname();

                    // check if enabled
                    if ($aggregator->isEnabled()) {
                        if ($aggregator->get('format') == $format) {
                            $aggregator->set('name', $name);
                            $aggregator->set('title', 'WF_AGGREGATOR_' . strtoupper($name) . '_TITLE');
                            $aggregators[$format][] = $aggregator;
                        }
                    }
                }
            }
        }

        return $aggregators[$format];
    }

    /**
     *
     * @param object $player
     * @return
     */
    public function loadTemplate($name, $tpl = '') {
        $path = WF_EDITOR_EXTENSIONS . '/aggregator/' . $name;

        $output = '';

        $file = 'default.php';

        if ($tpl) {
            $file = 'default_' . $tpl . '.php';
        }

        if (file_exists($path . '/tmpl/' . $file)) {
            ob_start();

            include $path . '/tmpl/' . $file;

            $output .= ob_get_contents();
            ob_end_clean();
        }

        return $output;
    }

}