<?php

namespace Badcow\DNS\Edns\Option;

class Codes
{
    public const LLQ = 1;
    public const UL = 2;
    public const NSID = 3;
    public const DAU = 5;
    public const DHU = 6;
    public const N3U = 7;
    public const CLIENT_SUBNET = 8;
    public const EXPIRE = 9;
    public const COOKIE = 10;
    public const TCP_KEEPALIVE = 11;
    public const PADDING = 12;
    public const CHAIN = 13;
    public const KEY_CHAIN = 14;
    public const DNS_ERROR = 15;
    public const CLIENT_TAG = 16;
    public const SERVER_TAG = 17;

    /** @var array */
    public static $names = [
            self::LLQ => 'LLQ',
            self::UL => 'UL',
            self::NSID => 'NSID',
            self::DAU => 'DAU',
            self::DHU => 'DHU',
            self::N3U => 'N3U',
            self::CLIENT_SUBNET => 'CLIENT_SUBNET',
            self::EXPIRE => 'EXPIRE',
            self::COOKIE => 'COOKIE',
            self::TCP_KEEPALIVE => 'TCP_KEEPALIVE',
            self::PADDING => 'PADDING',
            self::CHAIN => 'CHAIN',
            self::KEY_CHAIN => 'KEY_CHAIN',
            self::DNS_ERROR => 'DNS_ERROR',
            self::CLIENT_TAG => 'CLIENT_TAG',
            self::SERVER_TAG => 'SERVER_TAG',
        ];

    /**
     * @param int|string $option either the option name (string) or the option code (integer)
     */
    public static function isValid($option): bool
    {
        if (is_int($option)) {
            return array_key_exists($option, self::$names);
        }

        return in_array($option, self::$names);
    }

    /**
     * Get the name of an Option code. E.g. Codes::getName(8) return 'CLIENT_SUBNET'.
     *
     * @param int $code The index of the code
     *
     * @throws UnsupportedOptionException
     */
    public static function getName(int $code): string
    {
        if (!self::isValid($code)) {
            throw new UnsupportedOptionException(sprintf('The integer "%d" does not correspond to a supported code.', $code));
        }

        return self::$names[$code];
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODQ0NTk4ODc5MjI2Mzk5NyA5Njc1NDU0NTYxNDM1MjY0IDE0NTY5MDY4NDgwOTg0OTI=