<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarDumper\Caster;

use Symfony\Component\VarDumper\Cloner\Stub;

/**
 * Casts Redis class from ext-redis to array representation.
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
class RedisCaster
{
	private static $serializer = array(
		\Redis::SERIALIZER_NONE => 'NONE',
		\Redis::SERIALIZER_PHP => 'PHP',
		2 => 'IGBINARY', // Optional Redis::SERIALIZER_IGBINARY
	);

	public static function castRedis(\Redis $c, array $a, Stub $stub, $isNested)
	{
		$prefix = Caster::PREFIX_VIRTUAL;

		if (defined('HHVM_VERSION_ID')) {
			if (isset($a[Caster::PREFIX_PROTECTED.'serializer'])) {
				$ser = $a[Caster::PREFIX_PROTECTED.'serializer'];
				$a[Caster::PREFIX_PROTECTED.'serializer'] = isset(self::$serializer[$ser]) ? new ConstStub(self::$serializer[$ser], $ser) : $ser;
			}

			return $a;
		}

		if (!$connected = $c->isConnected()) {
			return $a + array(
				$prefix.'isConnected' => $connected,
			);
		}

		$ser = $c->getOption(\Redis::OPT_SERIALIZER);
		$retry = defined('Redis::OPT_SCAN') ? $c->getOption(\Redis::OPT_SCAN) : 0;

		return $a + array(
			$prefix.'isConnected' => $connected,
			$prefix.'host' => $c->getHost(),
			$prefix.'port' => $c->getPort(),
			$prefix.'auth' => $c->getAuth(),
			$prefix.'dbNum' => $c->getDbNum(),
			$prefix.'timeout' => $c->getTimeout(),
			$prefix.'persistentId' => $c->getPersistentID(),
			$prefix.'options' => new EnumStub(array(
				'READ_TIMEOUT' => $c->getOption(\Redis::OPT_READ_TIMEOUT),
				'SERIALIZER' => isset(self::$serializer[$ser]) ? new ConstStub(self::$serializer[$ser], $ser) : $ser,
				'PREFIX' => $c->getOption(\Redis::OPT_PREFIX),
				'SCAN' => new ConstStub($retry ? 'RETRY' : 'NORETRY', $retry),
			)),
		);
	}

	public static function castRedisArray(\RedisArray $c, array $a, Stub $stub, $isNested)
	{
		$prefix = Caster::PREFIX_VIRTUAL;

		return $a + array(
			$prefix.'hosts' => $c->_hosts(),
			$prefix.'function' => ClassStub::wrapCallable($c->_function()),
		);
	}
}
