Add factory for GrantTypes.

Author: Potherca

src/Factory/GrantTypeFactory.php

@@ -0,0 +1,97 @@
+<?php declare(strict_types=1);
+
+namespace Pdsinterop\Solid\Auth\Factory;
+
+use DateInterval;
+use Exception;
+use InvalidArgumentException;
+use League\OAuth2\Server\Grant\AuthCodeGrant;
+use League\OAuth2\Server\Grant\ClientCredentialsGrant;
+use League\OAuth2\Server\Grant\GrantTypeInterface;
+use League\OAuth2\Server\Grant\RefreshTokenGrant;
+use Pdsinterop\Solid\Auth\Config\Expiration;
+use Pdsinterop\Solid\Auth\Enum\OAuth2\GrantType;
+
+class GrantTypeFactory
+{
+    ////////////////////////////// CLASS PROPERTIES \\\\\\\\\\\\\\\\\\\\\\\\\\\\
+
+    /** @var Expiration */
+    private $expiration;
+    /** @var RepositoryFactory */
+    private $repositoryFactory;
+
+    //////////////////////////////// PUBLIC API \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
+
+    final public function __construct(Expiration $expiration, RepositoryFactory $repositoryFactory)
+    {
+        $this->expiration = $expiration;
+        $this->repositoryFactory = $repositoryFactory;
+    }
+
+    /**
+     * @param string $grantType
+     *
+     * @return GrantTypeInterface
+     *
+     * @throws Exception
+     */
+    final public function createGrantType(string $grantType) : GrantTypeInterface
+    {
+        $expiration = $this->expiration;
+        $factory = $this->repositoryFactory;
+
+        switch ($grantType) {
+            case GrantType::AUTH_CODE:
+                $grant = $this->createAuthCodeGrant($factory, $expiration->forAuthCode());
+                $grant->setRefreshTokenTTL($expiration->forRefreshToken());
+                break;
+
+
+            case GrantType::CLIENT_CREDENTIALS:
+                $grant = $this->createClientCredentialsGrant();
+                break;
+
+            case GrantType::REFRESH_TOKEN:
+                $grant = $this->createRefreshTokenGrant($factory);
+                break;
+
+            default:
+                throw new InvalidArgumentException('Given grant type "' . $grantType . '"is not supported');
+                break;
+        }
+
+        return $grant;
+    }
+
+    ////////////////////////////// UTILITY METHODS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\
+
+    private function createClientCredentialsGrant() : ClientCredentialsGrant
+    {
+        return new ClientCredentialsGrant();
+    }
+
+    /**
+     * @param RepositoryFactory $factory
+     * @param DateInterval $expiration
+     *
+     * @return AuthCodeGrant
+     *
+     * @throws Exception
+     */
+    private function createAuthCodeGrant(RepositoryFactory $factory, DateInterval $expiration) : AuthCodeGrant
+    {
+        return new AuthCodeGrant(
+            $factory->createAuthCodeRepository(),
+            $factory->createRefreshTokenRepository(),
+            $expiration
+        );
+    }
+
+    private function createRefreshTokenGrant(RepositoryFactory $factory) : RefreshTokenGrant
+    {
+        return new RefreshTokenGrant(
+            $factory->createRefreshTokenRepository()
+        );
+    }
+}