Add database management back to front-end and begin some refactoring

Here we go again boys...

app/Services/Databases/Hosts/HostUpdateService.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * Pterodactyl - Panel
+ * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
+ *
+ * This software is licensed under the terms of the MIT license.
+ * https://opensource.org/licenses/MIT
+ */
+
+namespace Pterodactyl\Services\Databases\Hosts;
+
+use Pterodactyl\Models\DatabaseHost;
+use Illuminate\Database\DatabaseManager;
+use Illuminate\Database\ConnectionInterface;
+use Illuminate\Contracts\Encryption\Encrypter;
+use Pterodactyl\Extensions\DynamicDatabaseConnection;
+use Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface;
+
+class HostUpdateService
+{
+    /**
+     * @var \Illuminate\Database\ConnectionInterface
+     */
+    private $connection;
+
+    /**
+     * @var \Illuminate\Database\DatabaseManager
+     */
+    private $databaseManager;
+
+    /**
+     * @var \Pterodactyl\Extensions\DynamicDatabaseConnection
+     */
+    private $dynamic;
+
+    /**
+     * @var \Illuminate\Contracts\Encryption\Encrypter
+     */
+    private $encrypter;
+
+    /**
+     * @var \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface
+     */
+    private $repository;
+
+    /**
+     * DatabaseHostService constructor.
+     *
+     * @param \Illuminate\Database\ConnectionInterface                          $connection
+     * @param \Illuminate\Database\DatabaseManager                              $databaseManager
+     * @param \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface $repository
+     * @param \Pterodactyl\Extensions\DynamicDatabaseConnection                 $dynamic
+     * @param \Illuminate\Contracts\Encryption\Encrypter                        $encrypter
+     */
+    public function __construct(
+        ConnectionInterface $connection,
+        DatabaseManager $databaseManager,
+        DatabaseHostRepositoryInterface $repository,
+        DynamicDatabaseConnection $dynamic,
+        Encrypter $encrypter
+    ) {
+        $this->connection = $connection;
+        $this->databaseManager = $databaseManager;
+        $this->dynamic = $dynamic;
+        $this->encrypter = $encrypter;
+        $this->repository = $repository;
+    }
+
+    /**
+     * Update a database host and persist to the database.
+     *
+     * @param int   $hostId
+     * @param array $data
+     * @return mixed
+     *
+     * @throws \Pterodactyl\Exceptions\Model\DataValidationException
+     * @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
+     */
+    public function handle(int $hostId, array $data): DatabaseHost
+    {
+        if (! empty(array_get($data, 'password'))) {
+            $data['password'] = $this->encrypter->encrypt($data['password']);
+        } else {
+            unset($data['password']);
+        }
+
+        $this->connection->beginTransaction();
+        $host = $this->repository->update($hostId, $data);
+
+        $this->dynamic->set('dynamic', $host);
+        $this->databaseManager->connection('dynamic')->select('SELECT 1 FROM dual');
+        $this->connection->commit();
+
+        return $host;
+    }
+}