<?php

declare(strict_types=1);

namespace Facile\JoseVerifier\Checker;

use Base64Url\Base64Url;
use function hash;
use Jose\Component\Checker\ClaimChecker;
use Jose\Component\Checker\InvalidClaimException;
use function round;
use function sprintf;
use function strlen;
use function substr;

/**
 * @internal
 */
abstract class AbstractHashChecker implements ClaimChecker
{
    /** @var string */
    private $valueToCheck;

    /** @var string */
    private $alg;

    /**
     * SHashChecker constructor.
     */
    public function __construct(string $valueToCheck, string $alg)
    {
        $this->valueToCheck = $valueToCheck;
        $this->alg = $alg;
    }

    private function getShaSize(string $alg): string
    {
        $size = substr($alg, -3);

        switch ($size) {
            case '512':
                return 'sha512';
            case '384':
                return 'sha384';
            default:
                return 'sha256';
        }
    }

    /**
     * @param mixed $value
     */
    public function checkClaim($value): void
    {
        $hash = hash($this->getShaSize($this->alg), $this->valueToCheck, true);
        $generated = Base64Url::encode(substr($hash, 0, (int) round(strlen($hash) / 2)));

        if ($value !== $generated) {
            throw new InvalidClaimException(sprintf($this->supportedClaim() . ' mismatch, expected %s, got: %s', $generated, (string) $value), $this->supportedClaim(), $value);
        }
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTUzODgwMTM5MTQ2MzA2OCA2NjE2NjgwNTMxNTgxNDIxIDgwOTM4MDQ4NzczNjY4MTg=