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<?php

declare(strict_types=1);

namespace Jose\Component\Core\Util\Ecc;

use Brick\Math\BigInteger;
use Jose\Component\Core\Util\BigInteger as CoreBigInteger;

/**
 * @internal
 */
final class Math
{
    public static function equals(BigInteger $first, BigInteger $other): bool
    {
        return $first->isEqualTo($other);
    }

    public static function add(BigInteger $augend, BigInteger $addend): BigInteger
    {
        return $augend->plus($addend);
    }

    public static function toString(BigInteger $value): string
    {
        return $value->toBase(10);
    }

    public static function inverseMod(BigInteger $a, BigInteger $m): BigInteger
    {
        return CoreBigInteger::createFromBigInteger($a)->modInverse(CoreBigInteger::createFromBigInteger($m))->get();
    }

    public static function baseConvert(string $number, int $from, int $to): string
    {
        return BigInteger::fromBase($number, $from)->toBase($to);
    }
}