<?php

namespace Pheanstalk\Command;

/**
 * The 'watch' command.
 * Adds a tube to the watchlist to reserve jobs from.
 *
 * @author Paul Annesley
 * @package Pheanstalk
 * @license http://www.opensource.org/licenses/mit-license.php
 */
class WatchCommand
    extends AbstractCommand
    implements \Pheanstalk\ResponseParser
{
    private $_tube;

    /**
     * @param string $tube
     */
    public function __construct($tube)
    {
        $this->_tube = $tube;
    }

    /* (non-phpdoc)
     * @see Command::getCommandLine()
     */
    public function getCommandLine()
    {
        return 'watch '.$this->_tube;
    }

    /* (non-phpdoc)
     * @see ResponseParser::parseResponse()
     */
    public function parseResponse($responseLine, $responseData)
    {
        return $this->_createResponse('WATCHING', array(
            'count' => preg_replace('#^WATCHING (.+)$#', '$1', $responseLine)
        ));
    }
}