<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2008 Bharat Mediratta
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */

GalleryCoreApi::requireOnce('modules/comment/module.inc');
GalleryCoreApi::requireOnce('modules/search/classes/GallerySearchInterface_1_0.class');

/**
 * This is an implementation of the search module's SearchInterface_1_0
 * @package Comment
 * @subpackage Classes
 * @author Bharat Mediratta <bharat@menalto.com>
 * @version $Revision: 17580 $
 */
class GalleryCommentSearch extends GallerySearchInterface_1_0 {
    /**
     * @see GallerySearchInterface_1_0::getSearchModuleInfo
     */
    function getSearchModuleInfo() {
	global $gallery;

	list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'comment');
	if ($ret) {
	    return array($ret, null);
	}

	$info = array('name' => $module->translate('Comments'),
		      'description' => $module->translate('Comment Module'),
		      'options' => array(
			  'comments' =>
			  array('description' => $module->translate('Search comments'),
				'enabled' => 1)));
	return array(null, $info);
    }

    /**
     * @see GallerySearchInterface_1_0::search
     */
    function search($options, $criteria, $offset=0, $count=-1) {
	global $gallery;
	$storage =& $gallery->getStorage();

	/* TODO: Update fetchAccessListIds to also accept an array of permission names */
	list ($ret, $aclIds) = GalleryCoreApi::fetchAccessListIds('comment.view',
								  $gallery->getActiveUserId());
	if ($ret) {
	    return array($ret, null);
	}
	list ($ret, $viewAclIds) = GalleryCoreApi::fetchAccessListIds('core.view',
								      $gallery->getActiveUserId());
	if ($ret) {
	    return array($ret, null);
	}
	$aclIds = array_intersect($aclIds, $viewAclIds);
	if (empty($aclIds)) {
	    return array(null,
			 array('start' => 0, 'end' => '0',
			       'count' => 0, 'results' => array()));
	}

	$aclMarkers = GalleryUtilities::makeMarkers(count($aclIds));
	$countQuery = '
	SELECT
	  COUNT([GalleryChildEntity::id])
	FROM
	  [GalleryChildEntity], [GalleryComment], [GalleryAccessSubscriberMap]
	WHERE
	  [GalleryChildEntity::id] = [GalleryComment::id]
	  AND
	  [GalleryChildEntity::parentId] = [GalleryAccessSubscriberMap::itemId]
	  AND
	  [GalleryAccessSubscriberMap::accessListId] IN (' . $aclMarkers . ')
	  AND
	  ([GalleryComment::subject] LIKE ?
	   OR
	   [GalleryComment::comment] LIKE ?)
          AND
          [GalleryComment::publishStatus] = ?
	';

	$query = '
	SELECT
	  [GalleryChildEntity::id],
	  [GalleryComment::subject],
	  [GalleryComment::comment],
	  [GalleryComment::date],
	  [GalleryUser::fullName],
	  [GalleryUser::userName],
	  [GalleryChildEntity::parentId],
	  [GalleryComment::author]
	FROM
	  [GalleryChildEntity], [GalleryComment], [GalleryAccessSubscriberMap], [GalleryUser]
	WHERE
	  [GalleryChildEntity::id] = [GalleryComment::id]
	  AND
	  [GalleryUser::id] = [GalleryComment::commenterId]
	  AND
	  [GalleryChildEntity::parentId] = [GalleryAccessSubscriberMap::itemId]
	  AND
	  [GalleryAccessSubscriberMap::accessListId] IN (' . $aclMarkers . ')
	  AND
	  ([GalleryComment::subject] LIKE ?
	   OR
	   [GalleryComment::comment] LIKE ?)
          AND
          [GalleryComment::publishStatus] = ?
	ORDER BY
	  [GalleryComment::date] DESC, [GalleryChildEntity::id] DESC';

	$data = $aclIds;
	$data[] = '%' . $criteria . '%';
	$data[] = '%' . $criteria . '%';
	$data[] = COMMENT_PUBLISH_STATUS_PUBLISHED;

	/* Find the total */
	list ($ret, $results) = $gallery->search($countQuery, $data);
	if ($ret) {
	    return array($ret, null);
	}
	$result = $results->nextResult();
	$numRows = (int)$result[0];

	list ($ret, $results) = $gallery->search(
	    $query, $data, array('limit' => array('offset' => $offset, 'count' => $count)));
	if ($ret) {
	    return array($ret, null);
	}

	list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'comment');
	if ($ret) {
	    return array($ret, null);
	}

	$text['subject'] = $module->translate('Subject');
	$text['comment'] = $module->translate('Comment');
	$text['commenter'] = $module->translate('Commenter');
	$text['guest'] = $module->translate('guest');

	$searchResults = array();
	while ($result = $results->nextResult()) {
	    $fields = array();
	    $fields[] = array('key' => $text['subject'], 'value' => $result[1]);
	    $fields[] = array('key' => $text['comment'], 'value' => $result[2]);

	    if(!empty($result[7])){
	    	$fields[] = array('key' => $text['commenter'],
	    			  'value' => $result[7] . '(' . $text['guest'] . ')');
	    } else if (!empty($result[4])) {
		$fields[] = array('key' => $text['commenter'], 'value' => $result[4]);
	    } else {
		$fields[] = array('key' => $text['commenter'], 'value' => $result[5]);
	    }
	    $searchResults[] = array('itemId' => (int)$result[6],
				     'fields' => $fields);
	}

	$data = array('start' => $numRows == 0 ? 0 : $offset+1,
		      'end' => $numRows == 0 ? 0 : $offset + sizeof($searchResults),
		      'count' => $numRows,
		      'results' => $searchResults);
	return array(null, $data);
    }
}
?>