<?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:----MzIyNzI3OTMxNTM4MTIzNiAyNTk4NjI5MDMzODI1MTE1IDM4MDgwMDYzNzU2MTMyNzY=