<?php
/**
 * @package	ImpressPages
 * @copyright	Copyright (C) 2011 ImpressPages LTD.
 * @license see ip_license.html
 */

namespace Modules\administrator\search;


if (!defined('CMS')) exit;


/**
 *
 *
 * @package ImpressPages
 */

class Element extends \Frontend\Element{

    public function getLink(){
        global $site;
        return $site->generateUrl(null, $this->zoneName);
    }

    public function getDepth(){
        return 1;
    }

    public function getButtonTitle(){
        global $parametersMod;
        return $parametersMod->getValue('administrator', 'search', 'translations', 'search');
    }


    public static function compareRank($element1, $element2){
        if($element1->searchRank > $element2->searchRank)
        return -1;
        if($element1->searchRank < $element2->searchRank)
        return 1;

        return 0; //equal
    }

    public function generateContent(){
        global $site;
        global $parametersMod;


        if($this->getId() == null)
        return \Ip\View::create('view/no_search_word.php', array())->render(); 
        
        
        
        $searchableZones = explode("\n", $parametersMod->getValue('administrator', 'search', 'options', 'searchable_zones'));
        $combinedZones = explode("\n", $parametersMod->getValue('administrator', 'search', 'options', 'combined_zones'));

        $foundElements = array();
        $foundElementsCombined = array();

        $searchWords = explode(" ", trim($site->getVars['q']));
        $nonEmptySearchWords = array();
        foreach ($searchWords as $searchWordKey => $searchWord) {
            if ($searchWord != '') {
                $nonEmptySearchWords[] = $searchWord;
            }
        }    
        $searchWords = $nonEmptySearchWords;    
        
        foreach ($searchableZones as $key => $value) {
            if ($value != '') {
                $tmpElements = $site->getZone($value)->getAllElements();
                $tmpFoundElements = $this->search($site->getZone($value), $tmpElements, $searchWords);

                $combined = false;
                foreach ($combinedZones as $combKey => $combinedValue) {
                    if ($combinedValue == $value) {
                        $combined = true;
                    }
                }

                if ($combined)
                $foundElementsCombined = array_merge($foundElementsCombined, $tmpFoundElements);
                else {
                    if(sizeof($tmpFoundElements) > 0){
                        $foundElements[$value] = $tmpFoundElements;
                    }
                }
                 
            }
        }
        $answer = '';
        usort($foundElementsCombined, 'Modules\administrator\search\Element::compareRank');


        if(sizeof($foundElements) > 0 || sizeof($foundElementsCombined) > 0) {
            $data = array (
                'foundElementsCombined' => $foundElementsCombined,
                'foundElements' => $foundElements,
            );
            return \Ip\View::create('view/results.php', $data)->render();
        } else {
            return \Ip\View::create('view/no_results.php', array())->render();
        }
    }



    private function search($zone, $tmpElements, $searchWords, $curDepth = 1){
        $foundElements = array();
        foreach ($tmpElements as $key => $element) {
            if ($element->getType() == 'default') {
                $searchRank = $this->getSearchRank($element, $searchWords);
                if($searchRank > 0){
                    $element->searchRank = $searchRank;
                    $foundElements[] = $element;
                }
            }
        }
        return $foundElements;
    }

    private function getSearchRank($element, $searchWords){
         
        if($element->getType() == 'inactive' || $element->getType() == 'subpage' || $element->getType() == 'redirect')
        return 0;
         
        $match = true;
        $textRank = 1;
        $buttonTitleRank = 1;
        $pageTitleRank = 1;
        $keywordsRank = 1;
        $descriptionRank = 1;
        foreach($searchWords as $key => $searchWord){
            $position = mb_stripos($element->getText(), $searchWord);
            if( $position === false) {
                $textRank = 0;
            }
             
            $position = mb_stripos($element->getButtonTitle(), $searchWord);
            if($position === false) {
                $buttonTitleRank = 0;
            }
             
            $position = mb_stripos($element->getPageTitle(), $searchWord);
            if($position === false) {
                $pageTitleRank = 0;
            }

            $position = mb_stripos($element->getKeywords(), $searchWord);
            if($position === false) {
                $keywordsRank = 0;
            }

            $position = mb_stripos($element->getDescription(), $searchWord);
            if($position === false) {
                $descriptionRank = 0;
            }

        }
        return $pageTitleRank*0.6 + $textRank*0.2 + $buttonTitleRank*0.17 + $keywordsRank*0.02 + $descriptionRank*0.01;
    }


}




