Add basic database listing for server

app/Http/Controllers/Api/Client/Servers/DatabaseController.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Pterodactyl\Http\Controllers\Api\Client\Servers;
+
+use Pterodactyl\Models\Server;
+use Pterodactyl\Transformers\Api\Client\DatabaseTransformer;
+use Pterodactyl\Http\Controllers\Api\Client\ClientApiController;
+use Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface;
+use Pterodactyl\Http\Requests\Api\Client\Servers\GetDatabasesRequest;
+
+class DatabaseController extends ClientApiController
+{
+    /**
+     * @var \Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface
+     */
+    private $repository;
+
+    /**
+     * DatabaseController constructor.
+     *
+     * @param \Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface $repository
+     */
+    public function __construct(DatabaseRepositoryInterface $repository)
+    {
+        parent::__construct();
+
+        $this->repository = $repository;
+    }
+
+    /**
+     * @param \Pterodactyl\Http\Requests\Api\Client\Servers\GetDatabasesRequest $request
+     * @return array
+     */
+    public function index(GetDatabasesRequest $request): array
+    {
+        $databases = $this->repository->getDatabasesForServer($request->getModel(Server::class)->id);
+
+        return $this->fractal->collection($databases)
+            ->transformWith($this->getTransformer(DatabaseTransformer::class))
+            ->toArray();
+    }
+}