OAuthHandlerFactory.php

<?php
 
declare(strict_types=1);
namespace Commercetools\Client;
 
use Commercetools\Exception\InvalidArgumentException;
use GuzzleHttp\Client;
use Psr\Cache\CacheItemPoolInterface;
use Psr\SimpleCache\CacheInterface;
 
class OAuthHandlerFactory
{
    public static function ofAuthConfig(AuthConfig $authConfig, $cache = null): OAuth2Handler
    {
        $cache = CacheValidator::validateCache($cache);
        switch (true) {
            case $authConfig instanceof ClientCredentialsConfig:
                $provider = new CachedTokenProvider(
                    new ClientCredentialTokenProvider(
                        new Client($authConfig->getOptions()),
                        $authConfig->getAuthUri(),
                        $authConfig->getCredentials()
                    ),
                    $cache,
                    $authConfig->getCredentials()->getCacheKey()
                );
                break;
            default:
                throw new InvalidArgumentException('Unknown authorization configuration');
        }
        return self::ofProvider($provider);
    }
 
    public static function ofProvider(TokenProvider $provider): OAuth2Handler
    {
        return new OAuth2Handler($provider);
    }
}