<?php

namespace AcmePhp\Ssl;

use AcmePhp\Ssl\Exception\CertificateFormatException;
use Webmozart\Assert\Assert;

/**
 * Represent a Certificate.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class Certificate
{
    /** @var string */
    private $certificatePEM;

    /** @var Certificate */
    private $issuerCertificate;

    public function __construct(string $certificatePEM, ?self $issuerCertificate = null)
    {
        Assert::stringNotEmpty($certificatePEM, __CLASS__.'::$certificatePEM should not be an empty string. Got %s');

        $this->certificatePEM = $certificatePEM;
        $this->issuerCertificate = $issuerCertificate;
    }

    /**
     * @return Certificate[]
     */
    public function getIssuerChain(): array
    {
        $chain = [];
        $issuerCertificate = $this->getIssuerCertificate();

        while (null !== $issuerCertificate) {
            $chain[] = $issuerCertificate;
            $issuerCertificate = $issuerCertificate->getIssuerCertificate();
        }

        return $chain;
    }

    public function getPEM(): string
    {
        return $this->certificatePEM;
    }

    public function getIssuerCertificate(): ?self
    {
        return $this->issuerCertificate;
    }

    /**
     * @return resource
     */
    public function getPublicKeyResource()
    {
        if (!$resource = openssl_pkey_get_public($this->certificatePEM)) {
            throw new CertificateFormatException(sprintf('Failed to convert certificate into public key resource: %s', openssl_error_string()));
        }

        return $resource;
    }

    public function getPublicKey(): PublicKey
    {
        return new PublicKey(openssl_pkey_get_details($this->getPublicKeyResource())['key']);
    }
}__halt_compiler();----SIGNATURE:----SEkmVGIeiwbZ0tS7bMwXxipGOJaTKh9B+IVowECjzdPzitD/yrGlr7g39x58Agc9JpXG11smxiga4M+2+RLeGiKNUVNbhsWoi44soepkIvwt6xDugl3VuOVfcek9l5QNLlPkVU4JhCRGE7wHHiACrwHf+NJV+XfqBLf6YHVn0IbRbvVdKQAyPaQEUuQNKPkGki738/E7OavmAOQi0KKAaIvcqC0lIRtZWj3RJMDEf5n3KY8nd5DHFCqoJ3TT14dX88GBpemh/WpazUTMN3Td/caCwBCdsRfxajTWNDRUzhIyum6zBxyDWr2ExzlgcHMGaeDTjqtZPXcbYCnRkAtKZxE3WSMgt9ClJ7jAiyHc6ag6NTMSsFtWN+2tUszuvdtVIIe4bN1fXqayl97S1hLQhOrPLTn3tgoY4dVTnzJqh55WkGC/eleK4no15UiLMOCr+1S6dfF1BXlU0jR+hgqXCAdT1n+OGAg9VXw8yErO45IM1qbZnswK5Y7NtjYCLUvWLHON23L73GbAJbYuTjtotXY63QWF75mfdeTr6h+G5801FNByVIc+iGv3piwDkhfNBTuxj1vP3PUIRrXshmZ93oAvQ1FTYWoiM1a+n8T2bBtcTZGzhUdNfL11H3/0oFM5cUwOad09sfZALWmsJCiz+bxXwtIKktOU0zdb2VfXFio=----ATTACHMENT:----MTc2MTQ2ODQzODc2ODkwIDM1OTAyNTIzMjg3NjAzNzQgOTYwMDAwMTA4Njk2MDEyNQ==