<?php
/**
 * @brief		GraphQL: Streams query
 * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
 * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
 * @license		http://www.invisionpower.com/legal/standards/
 * @package		IPS Community Suite
 * @since		10 May 2017
 * @version		SVN_VERSION_NUMBER
 */

namespace IPS\core\api\GraphQL\Queries;
use GraphQL\Type\Definition\ObjectType;
use IPS\Api\GraphQL\TypeRegistry;

/* 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;
}

/**
 * Streams query for GraphQL API
 */
class _Streams
{

	/*
	 * @brief 	Query description
	 */
	public static $description = "Returns a list of user's activity streams";

	/*
	 * @brief 	Query arguments
	 */
	public function args()
	{
		return array();
	}

	/**
	 * Return the query return type
	 */
	public function type() 
	{
		return TypeRegistry::listOf( \IPS\core\api\GraphQL\TypeRegistry::stream() );
	}

	/**
	 * Resolves this query
	 *
	 * @param 	mixed 	Value passed into this resolver
	 * @param 	array 	Arguments
	 * @param 	array 	Context values
	 * @return	array
	 */
	public function resolve($val, $args, $context)
	{
		$streams = array();

		foreach ( new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'core_streams', '`member` IS NULL', 'position ASC' ), 'IPS\core\Stream' ) as $stream )
		{
			if( \IPS\Member::loggedIn()->member_id || ( !\IPS\Member::loggedIn()->member_id && ( $stream->ownership == 'all' and $stream->read == 'all' and $stream->follow == 'all' and $stream->date_type != 'last_visit' ) ) )
			{
				$streams[ $stream->id ] = $stream;
			}
		}

		if ( \IPS\Member::loggedIn()->member_id )
		{
			foreach ( new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'core_streams', array( '`member`=?', \IPS\Member::loggedIn()->member_id ), 'position ASC' ), 'IPS\core\Stream' ) as $stream )
			{
				$streams[ $stream->id ] = $stream;
			}
		}

		return $streams;
	}
}
