Move OAuth module from API to common and solve PHPStan's errors

common/components/OAuth2/AuthorizationServerFactory.php

@@ -0,0 +1,48 @@
+<?php
+declare(strict_types=1);
+
+namespace common\components\OAuth2;
+
+use Carbon\CarbonInterval;
+use DateInterval;
+use League\OAuth2\Server\AuthorizationServer;
+use yii\base\Component as BaseComponent;
+
+final class AuthorizationServerFactory extends BaseComponent {
+
+    public static function build(): AuthorizationServer {
+        $clientsRepo = new Repositories\ClientRepository();
+        $accessTokensRepo = new Repositories\AccessTokenRepository();
+        $publicScopesRepo = new Repositories\PublicScopeRepository();
+        $internalScopesRepo = new Repositories\InternalScopeRepository();
+        $authCodesRepo = new Repositories\AuthCodeRepository();
+        $refreshTokensRepo = new Repositories\RefreshTokenRepository();
+
+        $accessTokenTTL = CarbonInterval::create(-1); // Set negative value to make tokens non expiring
+
+        $authServer = new AuthorizationServer(
+            $clientsRepo,
+            $accessTokensRepo,
+            new Repositories\EmptyScopeRepository(),
+            new Keys\EmptyKey(),
+            '', // Omit the key because we use our own encryption mechanism
+            new ResponseTypes\BearerTokenResponse(),
+        );
+        /** @noinspection PhpUnhandledExceptionInspection */
+        $authCodeGrant = new Grants\AuthCodeGrant($authCodesRepo, $refreshTokensRepo, new DateInterval('PT10M'));
+        $authCodeGrant->disableRequireCodeChallengeForPublicClients();
+        $authServer->enableGrantType($authCodeGrant, $accessTokenTTL);
+        $authCodeGrant->setScopeRepository($publicScopesRepo); // Change repository after enabling
+
+        $refreshTokenGrant = new Grants\RefreshTokenGrant($refreshTokensRepo);
+        $authServer->enableGrantType($refreshTokenGrant, $accessTokenTTL);
+        $refreshTokenGrant->setScopeRepository($publicScopesRepo); // Change repository after enabling
+
+        $clientCredentialsGrant = new Grants\ClientCredentialsGrant();
+        $authServer->enableGrantType($clientCredentialsGrant, $accessTokenTTL);
+        $clientCredentialsGrant->setScopeRepository($internalScopesRepo); // Change repository after enabling
+
+        return $authServer;
+    }
+
+}