<?php
/**
 * @brief		Search Results
 * @since		21 Aug 2014
*/

namespace IPS\Content\Search;

/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
	exit;
}

/**
 * Search Results
 */
class _Results extends \ArrayIterator
{	
	/**
	 * @brief	Count
	 */
	protected $countAllRows;
	
	/**
	 * @brief	Has this been initated?
	 */
	protected $initated = FALSE;
		
	/**
	 * @brief	Author data
	 */
	protected $authorData = array();
	
	/**
	 * @brief	Item titles
	 */
	protected $itemData = array();
	
	/**
	 * @brief	Container data
	 */
	protected $containerData = array();
	
	/**
	 * @brief	Reputation data
	 */
	protected $reputationData = array();
	
	/**
	 * @brief	Reaction Data
	 */
	protected $reactions = array();

	/**
	 * @brief	Attached Images
	 */
	protected $attachedImages = array();
	
	/**
	 * @brief	Review Ratings
	 */
	protected $reviewRatings = array();
	
	/**
	 * @brief	Index IDs of items I have posted in
	 */
	protected $iPostedIn = array();
	
	/**
	 * @brief	Tag values for index_ids returned from search
	 */
	protected $tags = array();
		
	/**
	 * Constructor
	 *
	 * @param	array				$results			The results
	 * @param	\IPS\Db\Select|int	$countAllRows		Count for all rows query or int
	 * @return	void
	 */
	public function __construct( $results, $countAllRows )
	{
		$this->countAllRows = $countAllRows;
		parent::__construct( $results );
	}
	
	/**
	 * Init
	 *
	 * @return	void
	 */
	public function init()
	{
		/* Init */
		$membersToLoad = array();
		$itemsToLoad = array();
		$containersToLoad = array();
		$reputationIds = array();
		$reviewRatings = array();
		$itemIndexIds = array();
		$indexIds	  = array();
		$attachedImages = array();

		/* Loop */
		foreach ( $this->getArrayCopy() as $result )
		{
			if ( $result['index_author'] )
			{
				$membersToLoad[ $result['index_author'] ] = $result['index_author'];
			}
			
			if ( \in_array( 'IPS\Content\Comment', class_parents( $result['index_class'] ) ) )
			{
				$commentClass = $result['index_class'];
				$itemsToLoad[ $commentClass::$itemClass ][ $result['index_item_id'] ] = $result['index_item_id'];
			}
			else
			{
				$itemsToLoad[ $result['index_class'] ][ $result['index_item_id'] ] = $result['index_item_id'];
			}
			
			if ( $result['index_container_id'] )
			{
				$class = $result['index_class'];
				if ( $class == 'IPS\core\Statuses\Status' )
				{
					if ( $result['index_container_id'] != $result['index_author'] )
					{
						$membersToLoad[ $result['index_container_id'] ] = $result['index_container_id'];
					}
				}
				else
				{
					$itemClass = \in_array( 'IPS\Content\Comment', class_parents( $class ) ) ? $class::$itemClass : $class;
					if ( isset( $itemClass::$containerNodeClass ) )
					{
						$containerClass = $itemClass::$containerNodeClass;
						if ( isset( $containerClass::$seoTitleColumn ) )
						{
							$containersToLoad[ $itemClass::$containerNodeClass ][ $result['index_container_id'] ] = $result['index_container_id'];
						}
					}
				}
			}
			
			if ( \IPS\IPS::classUsesTrait( $result['index_class'], 'IPS\Content\Reactable' ) )
			{
				$reputationIds[ $result['index_class'] ][ $result['index_object_id'] ] = $result['index_object_id'];
			}
			
			if ( \in_array( 'IPS\Content\Review', class_parents( $result['index_class'] ) ) )
			{
				$reviewRatings[ $result['index_class'] ][ $result['index_object_id'] ] = $result['index_object_id'];
			}
			
			if ( $result['index_item_index_id'] )
			{
				$itemIndexIds[] = $result['index_item_index_id'];
			}
			
			if ( $result['index_club_id'] )
			{
				$containersToLoad[ 'IPS\Member\Club' ][ $result['index_club_id'] ] = $result['index_club_id'];
			}

			$attachedImages[ $result['index_class'] ][ $result['index_item_id'] ][] = $result['index_object_id'];
		}

		/* Load item data */
		foreach ( $itemsToLoad as $itemClass => $itemIds )
		{
			foreach ( \IPS\Db::i()->select( $itemClass::basicDataColumns(), $itemClass::$databaseTable, \IPS\Db::i()->in( $itemClass::$databasePrefix . $itemClass::$databaseColumnId, $itemIds ) )->setKeyField( $itemClass::$databasePrefix . $itemClass::$databaseColumnId ) as $itemId => $itemData )
			{
				$this->itemData[ $itemClass ][ $itemId ] = $itemData;
				
				if ( isset( $itemClass::$databaseColumnMap ) and isset( $itemClass::$databaseColumnMap['author'] ) and isset( $itemData[ $itemClass::$databasePrefix . $itemClass::$databaseColumnMap['author'] ] ) )
				{
					$memberId = $itemData[ $itemClass::$databasePrefix . $itemClass::$databaseColumnMap['author'] ];
					$membersToLoad[ $memberId ] = $memberId;
				}
			}
			
			if ( method_exists( $itemClass, 'searchResultExtraData' ) )
			{
				foreach ( $itemClass::searchResultExtraData( $this->itemData[ $itemClass ] ) as $id => $extraData )
				{
					$this->itemData[ $itemClass ][ $id ]['extra'] = $extraData;
				}
			}
		}
				
		/* Load author data */
		if( \count( $membersToLoad ) )
		{
			$this->authorData = iterator_to_array( \IPS\Db::i()->select( \IPS\Member::columnsForPhoto(), 'core_members', \IPS\Db::i()->in( 'member_id', $membersToLoad ) )->setKeyField( 'member_id' ) );
		}
		
		/* Load container data */
		foreach ( $containersToLoad as $containerClass => $containerIds )
		{
			$this->containerData[ $containerClass ] = iterator_to_array( \IPS\Db::i()->select( $containerClass::basicDataColumns(), $containerClass::$databaseTable, \IPS\Db::i()->in( $containerClass::$databasePrefix . $containerClass::$databaseColumnId, $containerIds ) )->setKeyField( $containerClass::$databasePrefix . $containerClass::$databaseColumnId ) );
		}
		
		/* Load reputation data */
		$reputation = array();
		if ( \count( $reputationIds ) )
		{			
			$clause = array();
			$binds = array();
			foreach ( $reputationIds as $class => $ids )
			{
				$clause[] = "( reaction_enabled=? AND app=? AND type=? AND " . \IPS\Db::i()->in( 'type_id', $ids ) . " )";
				$binds[] = 1;
				$binds[] = $class::$application;
				$binds[] = $class::reactionType();
			}
			
			$where = array( array_merge( array( implode( ' OR ', $clause ) ), $binds ) );
			foreach ( \IPS\Db::i()->select( array( 'app', 'type', 'type_id', 'member_id', 'rep_rating', 'reaction' ), 'core_reputation_index', $where )->join( 'core_reactions', 'reaction=reaction_id' ) as $rep )
			{
				$this->reputationData[ $rep['app'] ][ $rep['type'] ][ $rep['type_id'] ][ $rep['member_id'] ] = $rep['reaction'];
				
				if ( !isset( $this->reactions[ $rep['app'] ][ $rep['type'] ][ $rep['type_id' ] ][ $rep['reaction'] ] ) )
				{
					$this->reactions[ $rep['app'] ][ $rep['type'] ][ $rep['type_id' ] ][ $rep['reaction'] ] = 0;
				}

				$this->reactions[ $rep['app'] ][ $rep['type'] ][ $rep['type_id' ] ][ $rep['reaction'] ]++;
			}
		}
		
		/* Load rating reviews */
		foreach ( $reviewRatings as $reviewClass => $reviewIds )
		{
			$this->reviewRatings[ $reviewClass ] = iterator_to_array( \IPS\Db::i()->select( array( $reviewClass::$databasePrefix . $reviewClass::$databaseColumnId, $reviewClass::$databasePrefix . $reviewClass::$databaseColumnMap['rating'] ), $reviewClass::$databaseTable, \IPS\Db::i()->in( $reviewClass::$databasePrefix . $reviewClass::$databaseColumnId, $reviewIds ) )->setKeyField( $reviewClass::$databasePrefix . $reviewClass::$databaseColumnId )->setValueField( $reviewClass::$databasePrefix . $reviewClass::$databaseColumnMap['rating'] ) );
		}
		
		/* Load data for the "I posted in this" stars */
		if ( \count( $itemIndexIds ) and \IPS\Member::loggedIn()->member_id )
		{
			$this->iPostedIn = \IPS\Content\Search\Index::i()->iPostedIn( $itemIndexIds, \IPS\Member::loggedIn() );
		}

		/* Load tags and prefixes */
		if ( \count( $itemIndexIds ) and \IPS\Settings::i()->search_method == 'mysql' )
		{
			$orderBy = '';
			if ( \IPS\Settings::i()->tags_alphabetical )
			{	
				$orderBy = ' ORDER BY index_tag ASC';
			}
			
			$this->tags = iterator_to_array( \IPS\Db::i()->select( 'index_id, GROUP_CONCAT(index_tag' . $orderBy . ') as index_tags', 'core_search_index_tags', array( array( \IPS\Db::i()->in( 'index_id', $itemIndexIds ) ), array( 'index_is_prefix = 0' ) ), NULL, NULL, 'index_id' )->setKeyField('index_id') );
			$this->prefixes = iterator_to_array( \IPS\Db::i()->select( 'index_id, index_tag as index_prefix', 'core_search_index_tags', array( array( \IPS\Db::i()->in( 'index_id', $itemIndexIds ) ), array( 'index_is_prefix = 1' ) ) )->setKeyField('index_id') );
		}

		/* Load attached images */
		$clause = [];
		$binds = [];
		$locationKeyMap = [];
		foreach ( $attachedImages as $class => $ids )
		{
			$itemClass = \in_array( 'IPS\Content\Comment', class_parents( $class ) ) ? $class::$itemClass : $class;
			foreach( $ids as $indexId => $commentIds )
			{
				foreach( $commentIds as $commentId )
				{
					$locationKey = $itemClass::$application . '_' . mb_ucfirst( $itemClass::$module );
					$locationKeyMap[$locationKey] = $class;
					$clause[] = "( location_key=? AND id1=? AND id2=?)";
					$binds[] = $locationKey;
					$binds[] = $indexId;
					$binds[] = $commentId;
				}
			}
		}

		if ( \count( $attachedImages ) and \count( $clause ) )
		{
			/* As we need to join back onto the map table, 2 queries are much more efficient */
			$ids = iterator_to_array( \IPS\Db::i()->select( 'attachment_id', 'core_attachments_map', array( array_merge( array( implode( ' OR ', $clause ) ), $binds ) ) ) );
			foreach ( \IPS\Db::i()->select( '*', 'core_attachments', array( array( \IPS\Db::i()->in( 'attach_id', $ids ) ), array('attach_is_image=1') ), 'attach_id ASC' )
					  ->join( 'core_attachments_map', 'core_attachments_map.attachment_id=core_attachments.attach_id' ) as $row )
			{
				if ( isset( $locationKeyMap[ $row['location_key'] ] ) and isset( $row['id2'] ) )
				{
					$this->attachedImages[ $locationKeyMap[ $row['location_key'] ] ][ $row['id2'] ][] = [
						'extension' => 'core_Attachment',
						'location' => $row['attach_location'],
						'thumb_location' => $row['attach_thumb_location'],
						'labels' => implode( ', ', \IPS\Text\Parser::getAttachmentLabels( $row ) )
					];
				}
			}
		}

		/* Set that we're initiated */
		$this->initated = TRUE;
	}
	
	/**
	 * Get current
	 *
	 * @return	\IPS\Patterns\ActiveRecord
	 */
	public function current()
	{
		$data = parent::current();

		$class = $data['index_class'];
		$itemClass = \in_array( 'IPS\Content\Comment', class_parents( $class ) ) ? $class::$itemClass : $class;
		$containerClass = isset( $itemClass::$containerNodeClass ) ? $itemClass::$containerNodeClass : NULL;
		
		$reputationData = array();
		if ( \IPS\IPS::classUsesTrait( $class, 'IPS\Content\Reactable' ) and isset( $this->reputationData[ $class::$application ][ $class::reactionType() ][ $data['index_object_id'] ] ) )
		{
			$reputationData = $this->reputationData[ $class::$application ][ $class::reactionType() ][ $data['index_object_id'] ];
		}
		
		$reactions = array();
		if ( \IPS\IPS::classUsesTrait( $class, 'IPS\Content\Reactable' ) and isset( $this->reactions[ $class::$application ][ $class::reactionType() ][ $data['index_object_id'] ] ) )
		{
			$reactions = $this->reactions[ $class::$application ][ $class::reactionType() ][ $data['index_object_id'] ];
		}
		
		/* Ensure we have an item if results are gathered from the map table */
		if ( ! isset( $this->itemData[ $itemClass ][ $data['index_item_id'] ] ) )
		{
			/* This should not happen in production, so debug log */
			\IPS\Log::debug( "index_item_id ID " . $data['index_item_id'] . " for " . $itemClass . " has no itemData" , 'searchResults' );

			/* Then cleanup/remove the item now */
			\IPS\Content\Search\Index::i()->directIndexRemoval( $data['index_class'], $data['index_object_id'] );

			/* And continue, moving on to the next item */
			static::next();
			return static::current();
		}
		
		$itemData = $this->itemData[ $itemClass ][ $data['index_item_id'] ];
		if ( $class == 'IPS\core\Statuses\Status' and $data['index_container_id'] != $data['index_author'] )
		{
			$itemData['profile'] = $this->authorData[ $data['index_container_id'] ];
		}
		if ( isset( $itemClass::$databaseColumnMap['author'] ) and isset( $itemData[ $itemClass::$databasePrefix . $itemClass::$databaseColumnMap['author'] ] ) )
		{
			$memberId = $itemData[ $itemClass::$databasePrefix . $itemClass::$databaseColumnMap['author'] ];
			if ( isset( $this->authorData[ $memberId ] ) )
			{
				$itemData['author'] = $this->authorData[ $memberId ];
			}
		}

		if ( \is_array( $this->attachedImages ) and isset( $this->attachedImages[ $class ][ $data['index_object_id'] ] ) )
		{
			$itemData['attachedImages'] = $this->attachedImages[ $class ][ $data['index_object_id'] ];
		}

		if ( isset( $this->tags[ $data['index_item_index_id'] ] ) )
		{
			$data['index_tags'] = $this->tags[ $data['index_item_index_id'] ]['index_tags'];
		}
		
		if ( isset( $this->prefixes[ $data['index_item_index_id'] ]) )
		{
			$data['index_prefix'] = $this->prefixes[ $data['index_item_index_id'] ]['index_prefix'];
		}
		
		$containerData = NULL;
		if ( $containerClass and isset( $this->containerData[ $containerClass ] ) and isset( $this->containerData[ $containerClass ][ $data['index_container_id'] ] ) )
		{
			$containerData = $this->containerData[ $containerClass ][ $data['index_container_id'] ];
			if ( $data['index_club_id'] and isset( $this->containerData[ 'IPS\Member\Club' ][ $data['index_club_id'] ] ) )
			{
				$containerData['_club'] = $this->containerData[ 'IPS\Member\Club' ][ $data['index_club_id'] ];
			}
		}
		
		return new Result\Content(
			$data,
			isset( $this->authorData[ $data['index_author'] ] ) ? $this->authorData[ $data['index_author'] ] : array( 'member_id' => 0, 'name' => \IPS\Member::loggedIn()->language()->addToStack('guest'), 'members_seo_name' => '', 'pp_main_photo' => NULL, 'pp_photo_type' => 'none' ),
			$itemData,
			$containerData,
			$reputationData,
			isset( $this->reviewRatings[ $data['index_class'] ][ $data['index_object_id'] ] ) ? $this->reviewRatings[ $data['index_class'] ][ $data['index_object_id'] ] : NULL,
			\in_array( $data['index_item_index_id'], $this->iPostedIn ),
			$reactions
		);
	}
	
	/**
	 * Rewind
	 *
	 * @return	void
	 */
	public function rewind()
	{
		if ( !$this->initated )
		{
			$this->init();
		}
		return parent::rewind();
	}
	
	/**
	 * Get count
	 *
	 * @param	bool	$allRows	If TRUE, will get the number of rows ignoring the limit
	 * @return	int
	 */
	public function count( $allRows = FALSE )
	{
		if ( $allRows )
		{
			if ( \is_integer( $this->countAllRows ) )
			{
				return $this->countAllRows;
			}
			else if ( \gettype( $this->countAllRows ) === 'object' and \get_class( $this->countAllRows ) === 'IPS\Db\Select' )
			{
				$this->countAllRows = $this->countAllRows->first();
				
				return $this->countAllRows;
			}
			else
			{
				throw new \LogicException;
			}
		}
		else
		{
			return parent::count();
		}
	}
	
	/**
	 * Add in "extra" items
	 *
	 * @param	array				$extra		Types ('register', 'follow_member', 'follow_content', 'photo', 'votes', 'like', 'rep_neg')
	 * @param	\IPS\Member|NULL	$author		The author to limit extra items to
	 * @param	\IPS\DateTime|NULL	$lastTime	If provided, only items since this date is included. If NULL, it works out which to include based on what results are being shown
	 * @param	\IPS\DateTime|NULL	$firstTime	If provided, only items before this date is included. If NULL, it works out which to include based on what results are being shown
	 * @return	array
	 * @note	Each thing is limited to 10 items. Even though this may result in accuracies, the limit is necessary so that if there's more extra items that content it doesn't create lots of queries and slow loading
	 */
	public function addExtraItems( $extra, \IPS\Member $author = NULL, $lastTime=NULL, $firstTime = NULL )
	{
		/* Work out the timestamps */
		$results = iterator_to_array( $this );
		if ( $firstTime )
		{
			$firstTime = $firstTime->getTimestamp();
		}
		elseif ( isset( \IPS\Request::i()->page ) and \IPS\Request::i()->page != 1 )
		{
			foreach ( $results as $result )
			{
				$firstTime = $result->createdDate->getTimestamp();
				break;
			}
		}
		if ( $lastTime )
		{
			$lastTime = $lastTime->getTimestamp();
		}
		else
		{
			foreach ( $results as $key => $result )
			{
				/* If an item has been removed incorrectly an orphan search index entry can be left. This is already logged in current() so let's not fail catastrophically */
				if( !$result )
				{
					unset( $results[ $key ] );
					continue;
				}

				$lastTime = $result->createdDate->getTimestamp();
			}
		}
		
		/* We need at least a last time */
		if ( !$lastTime )
		{
			return $results;
		}
				
		/* Get the extra items... */
		$extraItems = array();
		if ( $lastTime )
		{
			/* Users registered */
			if ( \in_array( 'register', $extra ) )
			{
				$where = array( array( 'joined>?', $lastTime ), array( 'completed=?', true ), array( 'temp_ban!=?', '-1' ) );
				if ( $firstTime )
				{
					$where[] = array( 'joined<?', $firstTime );
				}
				if ( $author )
				{
					$where[] = array( 'core_members.member_id=?', $author->member_id );
				}
				
				foreach (
					\IPS\Db::i()->select( implode( ', ', array_merge( array_map( function( $c ) { return "core_members.{$c}"; }, \IPS\Member::columnsForPhoto() ), array( 'core_members.joined', 'core_validating.new_reg' ) ) ), 'core_members', $where, 'joined DESC', 10 )
						->join( 'core_validating', 'core_validating.member_id=core_members.member_id' )
				as $member ) {
					if ( empty( $member['new_reg'] ) )
					{
						$extraItems[] = new Result\Custom(
							\IPS\DateTime::ts( $member['joined'] ),
							\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_joined', FALSE, array( 'htmlsprintf' => \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLinkFromData( $member['member_id'], $member['name'], $member['members_seo_name'], $member['member_group_id'] ) ) ),
							\IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userPhotoFromData( $member['member_id'], $member['name'], $member['members_seo_name'], \IPS\Member::photoUrl( $member ), 'tiny' )
						);
					}
				}
			}
			
			/* Users changed photo */
			if ( \in_array( 'photo', $extra ) )
			{
				$where = array( array( 'photo_last_update>? AND photo_last_update>(joined+300)', $lastTime ), array( 'completed=?', true ) );
				if ( $firstTime )
				{
					$where[] = array( 'photo_last_update<?', $firstTime );
				}
				if ( $author )
				{
					$where[] = array( 'member_id=?', $author->member_id );
				}
				foreach ( \IPS\Db::i()->select( array_merge( \IPS\Member::columnsForPhoto(), array( 'photo_last_update' ) ), 'core_members', $where, 'photo_last_update DESC', 10 ) as $member )
				{					
					$extraItems[] = new Result\Custom(
						\IPS\DateTime::ts( $member['photo_last_update'] ),
						\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_updated_photo', FALSE, array( 'htmlsprintf' => \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLinkFromData( $member['member_id'], $member['name'], $member['members_seo_name'], $member['member_group_id'] ) ) ),
						\IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userPhotoFromData( $member['member_id'], $member['name'], $member['members_seo_name'], \IPS\Member::photoUrl( $member ), 'tiny' )
					);
				}
			}
			
			/* Follow */
			if ( \in_array( 'follow_member', $extra ) or \in_array( 'follow_content', $extra ) )
			{						
				$where = array( array( 'follow_is_anon=0' ), array( 'follow_added>?', $lastTime ) );
				if ( $firstTime )
				{
					$where[] = array( 'follow_added<?', $firstTime );
				}
				if ( \in_array( 'follow_member', $extra ) xor \in_array( 'follow_content', $extra ) )
				{
					if ( \in_array( 'follow_member', $extra ) )
					{
						$where[] = array( 'follow_app=? AND follow_area=?', 'core', 'member' );
					}
					else
					{
						$where[] = array( '( follow_app!=? OR follow_area!=? )', 'core', 'member' );
					}
				}
				if ( $author )
				{
					if ( \in_array( 'follow_member', $extra ) and \in_array( 'follow_content', $extra ) )
					{
						$where[] = array( '( follow_id IN (?) )', \IPS\Db::i()->select( 'follow_id', 'core_follow', array( '( follow_member_id=? OR ( follow_app=? AND follow_area=? AND follow_rel_id=? ) )', $author->member_id, 'core', 'member', $author->member_id ) ) ); 
					}
					elseif ( \in_array( 'follow_member', $extra ) )
					{
						$where[] = array( 'follow_rel_id=?', $author->member_id );
					}
					else
					{
						$where[] = array( 'follow_member_id=?', $author->member_id );
					}
				}
				
				/* If an application was not updated or is not installed, do not try to fetch it or we can get a class does not exist fatal error */
				$where[] = array( "follow_app IN('" . implode( "','", array_keys( \IPS\Application::enabledApplications() ) ) . "')" );

				$lastClass	= NULL;
				$lastMember = NULL;

				foreach ( \IPS\Db::i()->select( array( 'follow_app', 'follow_area', 'follow_rel_id', 'follow_member_id', 'follow_added' ), 'core_follow', $where, 'follow_added DESC', 10 ) as $follow )
				{
					if ( $follow['follow_app'] == 'core' and $follow['follow_area'] == 'member' )
					{
						$extraItems[] = new Result\Custom(
							\IPS\DateTime::ts( $follow['follow_added'] ),
							\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_followed', FALSE, array( 'htmlsprintf' => array( \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $follow['follow_member_id'] ) ), \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $follow['follow_rel_id'] ) ) ) ) )
						);
					}
					else
					{
						$class = 'IPS\\' . $follow['follow_app'] . '\\' . mb_ucfirst( $follow['follow_area'] );

						try
						{
							if ( class_exists( $class ) )
							{
								/* It is possible we've already queried and fetched this item, so attempt to pull from our search results first */
								$urlToThing = NULL;

								foreach( $results as $result )
								{
									$result = $result->asArray();

									if( $result['indexData']['index_class'] == $class AND $result['indexData']['index_object_id'] == $follow['follow_rel_id'] )
									{
										$urlToThing = \IPS\Theme::i()->getTemplate( 'global', 'core', 'global' )->basicUrl( $class::urlFromIndexData( $result['indexData'], $result['itemData'] ), FALSE, $result['indexData']['index_title'], FALSE );
										break;
									}
								}

								if( $urlToThing === NULL )
								{
									$thingBeingFollowed	= $class::loadAndCheckPerms( $follow['follow_rel_id'] );
									$urlToThing			= \IPS\Theme::i()->getTemplate( 'global', 'core', 'global' )->basicUrl( $thingBeingFollowed->url(), FALSE, $thingBeingFollowed instanceof \IPS\Node\Model ? $thingBeingFollowed->_title : $thingBeingFollowed->mapped('title'), FALSE );
								}
								
								/* Do we need to merge with the last result? */
								if( $lastClass !== NULL AND $lastClass === $class AND $lastMember === $follow['follow_member_id'] AND \count( $extraItems ) )
								{
									$extraItem	= array_pop( $extraItems );

									$mergeList  = array_filter( array_merge( array( $urlToThing ), $extraItem->getMergeData() ) );
									$listToDisplay	= $mergeList;

									if( \count( $mergeList ) > 3 )
									{
										$listToDisplay = \array_slice( $mergeList, 0, 3 );
										$listToDisplay[] = \IPS\Member::loggedIn()->language()->addToStack( 'x_others', FALSE, array( 'pluralize' => array( \count( $mergeList ) - 3 ) ) );
									}

									$extraItem->mergeInData( \IPS\Member::loggedIn()->language()->addToStack( 'activity_member_followed', FALSE, array( 'htmlsprintf' => array( \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $follow['follow_member_id'] ) ), \IPS\Member::loggedIn()->language()->formatList( $listToDisplay ) ) ) ), $urlToThing );
									$extraItems[] = $extraItem;
								}
								else
								{
									$extraItems[] = new Result\Custom(
										\IPS\DateTime::ts( $follow['follow_added'] ),
										\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_followed', FALSE, array( 'htmlsprintf' => array( \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $follow['follow_member_id'] ) ), $urlToThing ) ) ),
										NULL,
										$urlToThing
									);
								}
							}

						}
						catch ( \OutOfRangeException $e ) { }

						$lastClass = $class;
						$lastMember = $follow['follow_member_id'];
					}
				}
			}
			
			/* Likes */
			if ( \IPS\Settings::i()->reputation_enabled and \IPS\Member::loggedIn()->group['gbw_view_reps'] and ( \in_array( 'like', $extra ) or \in_array( 'react', $extra ) ) )
			{
				$where = array( array( 'rep_date>?', $lastTime ) );
				$where[] = array( 'reaction_enabled=?', 1 );
				if ( $firstTime )
				{
					$where[] = array( 'rep_date<?', $firstTime );
				}

				/* get only the reputation data for installed applications */
				$where[] =  \IPS\Db::i()->in( 'app', array_keys( \IPS\Application::applications() ) ) ;

				if ( $author )
				{
					foreach ( \IPS\Db::i()->select( '*', 'core_reputation_index', array_merge( $where, array( array( 'member_id=?', $author->member_id ) ) ), 'rep_date DESC', 10 )->join( 'core_reactions', 'reaction=reaction_id' ) as $rep )
					{
						$this->addReputationExtraItem( $rep, $extraItems );
					}

					foreach ( \IPS\Db::i()->select( '*', 'core_reputation_index', array_merge( $where, array( array( 'member_received=?', $author->member_id ) ) ), 'rep_date DESC', 10 )->join( 'core_reactions', 'reaction=reaction_id' ) as $rep )
					{
						$this->addReputationExtraItem( $rep, $extraItems );
					}
				}
				else
				{
					foreach ( \IPS\Db::i()->select( '*', 'core_reputation_index', $where, 'rep_date DESC', 10 )->join( 'core_reactions', 'reaction=reaction_id' ) as $rep )
					{
						$this->addReputationExtraItem( $rep, $extraItems );
					}
				}
			}
			
			/* Clubs */
			if ( \IPS\Settings::i()->clubs and \in_array( 'clubs', $extra ) )
			{
				$where = array( array( 'created>?', $lastTime ) );
				if ( $firstTime )
				{
					$where[] = array( 'created<?', $firstTime );
				}
				if ( $author )
				{
					$where[] = array( 'owner=?', $author->member_id );
				}
				
				foreach ( \IPS\Member\Club::clubs( \IPS\Member::loggedIn(), NULL, 'created', FALSE, array(), $where ) as $club )
				{
					if ( $club->owner AND $club->owner->member_id )
					{
						$extraItems[] = new Result\Custom(
							$club->created,
							\IPS\Member::loggedIn()->language()->addToStack( 'activity_club', FALSE, array( 'htmlsprintf' => array( \IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( $club->owner ), \IPS\Theme::i()->getTemplate( 'global', 'core', 'global' )->basicUrl( $club->url(), FALSE, $club->name, FALSE ) ) ) )
						);
					}
				}
			}

			/* Extensions */
			foreach ( \IPS\Application::allExtensions( 'core', 'StreamItems', TRUE, 'core' ) as $key => $extension )
			{
				$settingKey = "all_activity_" . mb_strtolower( $key );

				if( method_exists( $extension, 'extraItems' ) and \IPS\Settings::i()->$settingKey )
				{
					$extraItems = array_merge( $extraItems, $extension->extraItems( $author, $lastTime, $firstTime ) );
				}
			}
		}

		/* Merge them in */
		if ( !empty( $extraItems ) )
		{
			$results = array_merge( $results, $extraItems );
			uasort( $results, function( $a, $b )
			{
				if ( $a->createdDate->getTimestamp() == $b->createdDate->getTimestamp() )
				{
					return 0;
				}
				elseif( $a->createdDate->getTimestamp() < $b->createdDate->getTimestamp() )
				{
					return 1;
				}
				else
				{
					return -1;
				}
			} );
		}
		
		/* And return */
		return $results;
	}

	/**
	 * Add reputation given/received to extra things array
	 *
	 * @param	array 	$rep		Reputation row from database
	 * @param	array 	$extraItems	Array of extra items (passed by reference)
	 * @return	void
	 */
	protected function addReputationExtraItem( $rep, &$extraItems )
	{
		try
		{
			$thingBeingRepped = NULL;
			foreach ( \IPS\Application::load( $rep['app'] )->extensions( 'core', 'ContentRouter', TRUE, TRUE ) as $ext )
			{
				foreach ( $ext->classes as $class )
				{
					if ( \IPS\IPS::classUsesTrait( $class, 'IPS\Content\Reactable' ) and $class::reactionType() == $rep['type'] )
					{
						$thingBeingRepped = $class::loadAndCheckPerms( $rep['type_id'] );
						break;
					}
					if ( isset( $class::$commentClass ) )
					{
						$commentClass = $class::$commentClass;
						if ( \IPS\IPS::classUsesTrait( $commentClass, 'IPS\Content\Reactable' ) and $commentClass::reactionType() == $rep['type'] )
						{
							$thingBeingRepped = $commentClass::loadAndCheckPerms( $rep['type_id'] );
							break;
						}
					}
					if ( isset( $class::$reviewClass ) )
					{
						$reviewClass = $class::$reviewClass;
						if ( \IPS\IPS::classUsesTrait( $reviewClass, 'IPS\Content\Reactable' ) and $reviewClass::reactionType() == $rep['type'] )
						{
							$thingBeingRepped = $reviewClass::loadAndCheckPerms( $rep['type_id'] );
							break;
						}
					}
				}
			}
			if ( !$thingBeingRepped )
			{
				throw new \OutOfRangeException;
			}
			
			if ( \IPS\Content\Reaction::isLikeMode() )
			{
				$extraItems[] = new Result\Custom(
					\IPS\DateTime::ts( $rep['rep_date'] ),
					\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_liked', FALSE, array( 'htmlsprintf' => array(
						\IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $rep['member_id'] ) ),
						$thingBeingRepped->indefiniteArticle(),
						\IPS\Theme::i()->getTemplate( 'global', 'core', 'global' )->basicUrl( $thingBeingRepped->url(), FALSE, $thingBeingRepped instanceof \IPS\Content\Item ? $thingBeingRepped->mapped('title') : $thingBeingRepped->item()->mapped('title'), FALSE )
					) ) )
				);
			}
			else
			{
				$reaction = \IPS\Content\Reaction::load( $rep['reaction'] );
				$extraItems[] = new Result\Custom(
					\IPS\DateTime::ts( $rep['rep_date'] ),
					\IPS\Member::loggedIn()->language()->addToStack( 'activity_member_reacted', FALSE, array( 'htmlsprintf' => array(
						(string) $reaction->_icon,
						$reaction->_title,
						\IPS\Theme::i()->getTemplate( 'global', 'core', 'front' )->userLink( \IPS\Member::load( $rep['member_id'] ) ),
						$thingBeingRepped->indefiniteArticle(),
						\IPS\Theme::i()->getTemplate( 'global', 'core', 'global' )->basicUrl( $thingBeingRepped->url(), FALSE, $thingBeingRepped instanceof \IPS\Content\Item ? $thingBeingRepped->mapped('title') : $thingBeingRepped->item()->mapped('title'), FALSE )
					) ) )
				);
			}
		}
		catch ( \OutOfRangeException $e ) { }
	}
}