<?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 Amqp related classes to array representation.
 *
 * @author Grégoire Pineau <lyrixx@lyrixx.info>
 */
class AmqpCaster
{
	private static $flags = array(
		AMQP_DURABLE => 'AMQP_DURABLE',
		AMQP_PASSIVE => 'AMQP_PASSIVE',
		AMQP_EXCLUSIVE => 'AMQP_EXCLUSIVE',
		AMQP_AUTODELETE => 'AMQP_AUTODELETE',
		AMQP_INTERNAL => 'AMQP_INTERNAL',
		AMQP_NOLOCAL => 'AMQP_NOLOCAL',
		AMQP_AUTOACK => 'AMQP_AUTOACK',
		AMQP_IFEMPTY => 'AMQP_IFEMPTY',
		AMQP_IFUNUSED => 'AMQP_IFUNUSED',
		AMQP_MANDATORY => 'AMQP_MANDATORY',
		AMQP_IMMEDIATE => 'AMQP_IMMEDIATE',
		AMQP_MULTIPLE => 'AMQP_MULTIPLE',
		AMQP_NOWAIT => 'AMQP_NOWAIT',
		AMQP_REQUEUE => 'AMQP_REQUEUE',
	);

	private static $exchangeTypes = array(
		AMQP_EX_TYPE_DIRECT => 'AMQP_EX_TYPE_DIRECT',
		AMQP_EX_TYPE_FANOUT => 'AMQP_EX_TYPE_FANOUT',
		AMQP_EX_TYPE_TOPIC => 'AMQP_EX_TYPE_TOPIC',
		AMQP_EX_TYPE_HEADERS => 'AMQP_EX_TYPE_HEADERS',
	);

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

		$a += array(
			$prefix.'is_connected' => $c->isConnected(),
		);

		// Recent version of the extension already expose private properties
		if (isset($a["\x00AMQPConnection\x00login"])) {
			return $a;
		}

		// BC layer in the amqp lib
		if (method_exists($c, 'getReadTimeout')) {
			$timeout = $c->getReadTimeout();
		} else {
			$timeout = $c->getTimeout();
		}

		$a += array(
			$prefix.'is_connected' => $c->isConnected(),
			$prefix.'login' => $c->getLogin(),
			$prefix.'password' => $c->getPassword(),
			$prefix.'host' => $c->getHost(),
			$prefix.'vhost' => $c->getVhost(),
			$prefix.'port' => $c->getPort(),
			$prefix.'read_timeout' => $timeout,
		);

		return $a;
	}

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

		$a += array(
			$prefix.'is_connected' => $c->isConnected(),
			$prefix.'channel_id' => $c->getChannelId(),
		);

		// Recent version of the extension already expose private properties
		if (isset($a["\x00AMQPChannel\x00connection"])) {
			return $a;
		}

		$a += array(
			$prefix.'connection' => $c->getConnection(),
			$prefix.'prefetch_size' => $c->getPrefetchSize(),
			$prefix.'prefetch_count' => $c->getPrefetchCount(),
		);

		return $a;
	}

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

		$a += array(
			$prefix.'flags' => self::extractFlags($c->getFlags()),
		);

		// Recent version of the extension already expose private properties
		if (isset($a["\x00AMQPQueue\x00name"])) {
			return $a;
		}

		$a += array(
			$prefix.'connection' => $c->getConnection(),
			$prefix.'channel' => $c->getChannel(),
			$prefix.'name' => $c->getName(),
			$prefix.'arguments' => $c->getArguments(),
		);

		return $a;
	}

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

		$a += array(
			$prefix.'flags' => self::extractFlags($c->getFlags()),
		);

		$type = isset(self::$exchangeTypes[$c->getType()]) ? new ConstStub(self::$exchangeTypes[$c->getType()], $c->getType()) : $c->getType();

		// Recent version of the extension already expose private properties
		if (isset($a["\x00AMQPExchange\x00name"])) {
			$a["\x00AMQPExchange\x00type"] = $type;

			return $a;
		}

		$a += array(
			$prefix.'connection' => $c->getConnection(),
			$prefix.'channel' => $c->getChannel(),
			$prefix.'name' => $c->getName(),
			$prefix.'type' => $type,
			$prefix.'arguments' => $c->getArguments(),
		);

		return $a;
	}

	public static function castEnvelope(\AMQPEnvelope $c, array $a, Stub $stub, $isNested, $filter = 0)
	{
		$prefix = Caster::PREFIX_VIRTUAL;

		$deliveryMode = new ConstStub($c->getDeliveryMode().(2 === $c->getDeliveryMode() ? ' (persistent)' : ' (non-persistent)'), $c->getDeliveryMode());

		// Recent version of the extension already expose private properties
		if (isset($a["\x00AMQPEnvelope\x00body"])) {
			$a["\0AMQPEnvelope\0delivery_mode"] = $deliveryMode;

			return $a;
		}

		if (!($filter & Caster::EXCLUDE_VERBOSE)) {
			$a += array($prefix.'body' => $c->getBody());
		}

		$a += array(
			$prefix.'delivery_tag' => $c->getDeliveryTag(),
			$prefix.'is_redelivery' => $c->isRedelivery(),
			$prefix.'exchange_name' => $c->getExchangeName(),
			$prefix.'routing_key' => $c->getRoutingKey(),
			$prefix.'content_type' => $c->getContentType(),
			$prefix.'content_encoding' => $c->getContentEncoding(),
			$prefix.'headers' => $c->getHeaders(),
			$prefix.'delivery_mode' => $deliveryMode,
			$prefix.'priority' => $c->getPriority(),
			$prefix.'correlation_id' => $c->getCorrelationId(),
			$prefix.'reply_to' => $c->getReplyTo(),
			$prefix.'expiration' => $c->getExpiration(),
			$prefix.'message_id' => $c->getMessageId(),
			$prefix.'timestamp' => $c->getTimeStamp(),
			$prefix.'type' => $c->getType(),
			$prefix.'user_id' => $c->getUserId(),
			$prefix.'app_id' => $c->getAppId(),
		);

		return $a;
	}

	private static function extractFlags($flags)
	{
		$flagsArray = array();

		foreach (self::$flags as $value => $name) {
			if ($flags & $value) {
				$flagsArray[] = $name;
			}
		}

		if (!$flagsArray) {
			$flagsArray = array('AMQP_NOPARAM');
		}

		return new ConstStub(implode('|', $flagsArray), $flags);
	}
}
