<?php

/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace VendorDuplicator\Monolog\Handler\SyslogUdp;

class UdpSocket
{
    const DATAGRAM_MAX_LENGTH = 65023;
    protected $ip;
    protected $port;
    protected $socket;
    public function __construct($ip, $port = 514)
    {
        $this->ip = $ip;
        $this->port = $port;
        $this->socket = \socket_create(\AF_INET, \SOCK_DGRAM, \SOL_UDP);
    }
    public function write($line, $header = "")
    {
        $this->send($this->assembleMessage($line, $header));
    }
    public function close()
    {
        if (\is_resource($this->socket)) {
            \socket_close($this->socket);
            $this->socket = null;
        }
    }
    protected function send($chunk)
    {
        if (!\is_resource($this->socket)) {
            throw new \LogicException('The UdpSocket to ' . $this->ip . ':' . $this->port . ' has been closed and can not be written to anymore');
        }
        \socket_sendto($this->socket, $chunk, \strlen($chunk), $flags = 0, $this->ip, $this->port);
    }
    protected function assembleMessage($line, $header)
    {
        $chunkSize = self::DATAGRAM_MAX_LENGTH - \strlen($header);
        return $header . \substr($line, 0, $chunkSize);
    }
}
