<?php

namespace AcmePhp\Ssl;

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

/**
 * Represent a SSL Private key.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class PrivateKey extends Key
{
    /**
     * {@inheritdoc}
     */
    public function getResource()
    {
        if (!$resource = openssl_pkey_get_private($this->keyPEM)) {
            throw new KeyFormatException(sprintf('Failed to convert key into resource: %s', openssl_error_string()));
        }

        return $resource;
    }

    public function getPublicKey(): PublicKey
    {
        $resource = $this->getResource();
        if (!$details = openssl_pkey_get_details($resource)) {
            throw new KeyFormatException(sprintf('Failed to extract public key: %s', openssl_error_string()));
        }

        // PHP 8 automatically frees the key instance and deprecates the function
        if (\PHP_VERSION_ID < 80000) {
            openssl_free_key($resource);
        }

        return new PublicKey($details['key']);
    }

    public static function fromDER(string $keyDER): self
    {
        Assert::stringNotEmpty($keyDER, __METHOD__.'::$keyDER should be a non-empty string. Got %s');

        $der = base64_encode($keyDER);
        $lines = str_split($der, 65);
        array_unshift($lines, '-----BEGIN PRIVATE KEY-----');
        $lines[] = '-----END PRIVATE KEY-----';
        $lines[] = '';

        return new self(implode("\n", $lines));
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Nzg3MDkzNTYzNzM5ODIwMSA1NzAzODM4NDk5MDEzMzkgNzQzNjgxMTQ5ODA3MTgyNg==