<?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:----OTY3NDg2MDM0MzkyNjgzNCA2MzMzOTc1Nzg2OTE5NzgzIDU2NTA4OTMzOTk3MjQxNzg=