<?php

namespace Adapters;

use Vendor\PhpAmqpLib\Connection\AMQPStreamConnection;
use Vendor\PhpAmqpLib\Message\AMQPMessage;

class RabbitAdapter
{

    /**
     * @var \Vendor\PhpAmqpLib\Channel\AMQPChannel
     */
    protected $channel;

    /**
     * @var AMQPStreamConnection
     */
    protected $connection;

    /**
     * RabbitAdapter constructor.
     * @throws \Fabrikant\Exception
     */
    public function __construct()
    {
        $this->connection = $this->getConnection();
        $this->channel = $this->connection->channel();
    }

    /**
     * @return RabbitAdapter
     * @throws \Fabrikant\Exception
     */
    public static function get()
    {
        return new self();
    }

    /**
     * @return \Vendor\PhpAmqpLib\Channel\AMQPChannel
     */
    public function getChannel()
    {
        return $this->channel;
    }

    /**
     * @param       $queue
     * @param bool  $passive
     * @param bool  $durable
     * @param bool  $exclusive
     * @param bool  $autoDelete
     * @param bool  $nowait
     * @param array $arguments
     * @param null  $ticket
     */
    public function declareQueue
    (
        $queue,
        $passive = false,
        $durable = true,
        $exclusive = false,
        $autoDelete = false,
        $nowait = false,
        $arguments = array(),
        $ticket = null
    )
    {
        $this->channel->queue_declare($queue, $passive, $durable, $exclusive, $autoDelete, $nowait, $arguments, $ticket);
    }

    /**
     * @param        $exchange
     * @param string $type
     * @param bool   $passive
     * @param bool   $durable
     * @param bool   $autoDelete
     * @param bool   $internal
     * @param bool   $nowait
     * @param array  $arguments
     * @param null   $ticket
     */
    public function declareExchange(
        $exchange,
        $type = 'direct',
        $passive = false,
        $durable = true,
        $autoDelete = false,
        $internal = false,
        $nowait = false,
        $arguments = array(),
        $ticket = null
    )
    {
        $this->channel->exchange_declare(
            $exchange,
            $type,
            $passive,
            $durable,
            $autoDelete,
            $internal,
            $nowait,
            $arguments,
            $ticket
        );
    }

    /**
     * @param Message $message
     * @param string  $exchange
     * @param string  $routing_key
     * @param bool    $mandatory
     * @param bool    $immediate
     * @param null    $ticket
     */
    public function pushMessage(AMQPMessage $message, $exchange = '', $routing_key = '', $mandatory = false, $immediate = false, $ticket = null)
    {
        $this->channel->basic_publish($message, $exchange, $routing_key, $mandatory, $immediate, $ticket);
    }

    /**
     * @param      $queue
     * @param      $exchange
     * @param null $routingKey
     */
    public function queueBind($queue, $exchange, $routingKey = null)
    {
        !is_null($routingKey) || $routingKey = $queue;

        $this->channel->queue_bind(
            $queue,
            $exchange,
            $routingKey
        );
    }

    /**
     * Удаляет очередь
     * @param string $queue
     * @param bool   $if_unused
     * @param bool   $if_empty
     * @param bool   $nowait
     * @param null   $ticket
     *
     * @return mixed|null
     */
    public function deleteQueue($queue = '', $if_unused = false, $if_empty = false, $nowait = false, $ticket = null)
    {
        return $this->channel->queue_delete($queue, $if_unused, $if_empty, $nowait, $ticket);
    }

    /**
     * Удаляет обменник
     * @param      $exchange
     * @param bool $if_unused
     * @param bool $nowait
     * @param null $ticket
     *
     * @return mixed|null
     */
    public function deleteExchange($exchange, $if_unused = false, $nowait = false, $ticket = null)
    {
        return $this->channel->exchange_delete($exchange, $if_unused, $nowait, $ticket);
    }

    /**
     * @return AMQPStreamConnection
     * @throws \Fabrikant\Exception
     */
    protected function getConnection()
    {
        $config = [];//your config

        $connection = new AMQPStreamConnection(
            $config['host'],
            $config['port'],
            $config['login'],
            $config['password'],
            $config['vhost']
        );

        return $connection;
    }

    /**
     * Destructor
     * close connections
     */
    public function __destruct()
    {
        $this->channel->close();
        $this->connection->close();
    }

}