<?php

namespace ForminatorGoogleAddon\Firebase\JWT;

use InvalidArgumentException;
use OpenSSLAsymmetricKey;
use OpenSSLCertificate;
use TypeError;
class Key
{
    /** @var string|resource|OpenSSLAsymmetricKey|OpenSSLCertificate */
    private $keyMaterial;
    /** @var string */
    private $algorithm;
    /**
     * @param string|resource|OpenSSLAsymmetricKey|OpenSSLCertificate $keyMaterial
     * @param string $algorithm
     */
    public function __construct($keyMaterial, string $algorithm)
    {
        if (!\is_string($keyMaterial) && !$keyMaterial instanceof OpenSSLAsymmetricKey && !$keyMaterial instanceof OpenSSLCertificate && !\is_resource($keyMaterial)) {
            throw new TypeError('Key material must be a string, resource, or OpenSSLAsymmetricKey');
        }
        if (empty($keyMaterial)) {
            throw new InvalidArgumentException('Key material must not be empty');
        }
        if (empty($algorithm)) {
            throw new InvalidArgumentException('Algorithm must not be empty');
        }
        // TODO: Remove in PHP 8.0 in favor of class constructor property promotion
        $this->keyMaterial = $keyMaterial;
        $this->algorithm = $algorithm;
    }
    /**
     * Return the algorithm valid for this key
     *
     * @return string
     */
    public function getAlgorithm() : string
    {
        return $this->algorithm;
    }
    /**
     * @return string|resource|OpenSSLAsymmetricKey|OpenSSLCertificate
     */
    public function getKeyMaterial()
    {
        return $this->keyMaterial;
    }
}