<?php
/**
* @package      My RSS Reader
* @copyright    Copyright (C) 2010 FalsinSoft. All rights reserved.
* @license      GNU/GPL
* @website      http://falsinsoft.blogspot.com
* @email        falsinsoft@gmail.com
* 
*/

defined( '_JEXEC' ) or die( 'Restricted access' );

jimport('joomla.plugin.plugin');

class plgSearchMyRSSReader extends JPlugin
{
	public function __construct(& $subject, $config)
	{
		parent::__construct($subject, $config);
		$this->loadLanguage();
	}

	function onContentSearchAreas() {
		static $areas = array(
			'myrssreader' => 'PLG_SEARCH_MYRSSREADER_RSSFEEDS'
			);
			return $areas;
	}

	function onContentSearch($text, $phrase='', $ordering='', $areas=null)
	{
		$db	=& JFactory::getDBO();

		$searchText = $text;
		
		if(is_array( $areas )) 
		{
			if(!array_intersect($areas, array_keys(plgSearchRSSFeedsAreas()))) 
			{
				return array();
			}
		}

		$limit = $this->params->def('search_limit', 50);

		$text = trim($text);
		
		if($text == '') return array();
		
		$wheres	= array();
		
		switch($phrase)
		{
			case 'exact':
			
				$text		= $db->Quote('%'.$db->getEscaped($text, true).'%', false);
				$wheres2 	= array();
				$wheres2[] 	= 'a.item_title LIKE '.$text;
				$wheres2[] 	= 'a.item_content LIKE '.$text;
				$where 		= '('.implode(') OR (', $wheres2).')';
				break;

			case 'all':
			case 'any':
			default:
			
				$words 	= explode(' ', $text);
				$wheres = array();
				foreach($words as $word)
				{
					$word		= $db->Quote('%'.$db->getEscaped($word, true).'%', false);
					$wheres2 	= array();
					$wheres2[] 	= 'a.item_title LIKE '.$word;
					$wheres2[] 	= 'a.item_content LIKE '.$word;
					$wheres[] 	= implode(' OR ', $wheres2);
				}
				$where 	= '('.implode(($phrase == 'all' ? ') AND (' : ') OR ('), $wheres).')';
				break;
		}

		switch($ordering)
		{
			case 'oldest':
				$order = 'a.item_date ASC';
				break;

			case 'alpha':
				$order = 'a.item_title ASC';
				break;

			case 'popular':
			case 'category':
			case 'newest':
			default:
				$order = 'a.item_date DESC';
		}

		$query = 'SELECT a.item_title AS title, a.item_content AS text, a.item_date AS created, a.item_link AS href,'
		. ' "1" AS browsernav, "RSS Feed" AS section'
		. ' FROM #__myrssreader_cache AS a'
		. ' WHERE ('.$where.')'
		. ' GROUP BY a.id'
		. ' ORDER BY '.$order
		;
		
		$db->setQuery($query, 0, $limit);
		
		$rows = $db->loadObjectList();

		$return = array();
		
		foreach($rows AS $key => $feed) 
		{
			if(searchHelper::checkNoHTML($feed, $searchText, array('url', 'text', 'title'))) 
			{
				$return[] = $feed;
			}
		}

		return $return;
	}
}