denpamusic/php-levin

<?php

declare(strict_types=1);

namespace Denpa\Levin\Requests;

use Denpa\Levin;
use Denpa\Levin\Command;
use Denpa\Levin\Section\Section;
use Denpa\Levin\Traits\Peerlist;

class Handshake extends Command implements RequestInterface
{
    use Peerlist;

    /**
     * @return \Denpa\Levin\Section\Section
     */
    public function request(): Section
    {
        return Levin\section([
            'node_data' => Levin\section([
                'local_time' => Levin\uint64le(time()),
                'my_port'    => Levin\uint32le($this->my_port),
                'network_id' => Levin\bytestring($this->network_id),
                'peer_id'    => $this->peer_id,
            ]),
            'payload_data' => Levin\section([
                'cumulative_difficulty' => Levin\uint64le($this->cumulative_difficulty),
                'current_height'        => Levin\uint64le($this->current_height),
                'top_id'                => Levin\bytestring($this->top_id),
                'top_version'           => Levin\uint8($this->top_version),
            ]),
        ]);
    }

    /**
     * @return \Denpa\Levin\Section\Section
     */
    public function response(): Section
    {
        list($localPeerlist, $localPeerlistNew) = $this->localPeerlist();

        return Levin\section([
            'node_data' => Levin\section([
                'local_time' => Levin\uint64le(time()),
                'my_port'    => Levin\uint32le($this->my_port),
                'network_id' => Levin\bytestring($this->network_id),
                'peer_id'    => $this->peer_id,
            ]),
            'payload_data' => Levin\section([
                'cumulative_difficulty' => Levin\uint64le($this->cumulative_difficulty),
                'current_height'        => Levin\uint64le($this->current_height),
                'top_id'                => Levin\bytestring($this->top_id),
                'top_version'           => Levin\uint8($this->top_version),
            ]),
            'local_peerlist_new' => Levin\bytearray($localPeerlistNew, Levin\section()),
            'local_peerlist'     => Levin\bytestring($localPeerlist),
        ]);
    }

    /**
     * @return array
     */
    protected function defaultVars(): array
    {
        return [
            'my_port'               => 0,
            'peer_id'               => Levin\peer_id(),
            'network_id'            => hex2bin('1230f171610441611731008216a1a110'),
            'cumulative_difficulty' => 1,
            'current_height'        => 1,
            'top_version'           => 1,
            'top_id'                => hex2bin('418015bb9ae982a1975da7d79277c2705727a56894ba0fb246adaabb1f4632e3'),
            'peerlist'              => [],
        ];
    }

    /**
     * @return int
     */
    public function getCommandCode(): int
    {
        return self::P2P_COMMANDS_POOL_BASE + 1;
    }
}