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

Here we go again boys...

app/Services/Databases/Hosts/HostDeletionService.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Pterodactyl\Services\Databases\Hosts;
+
+use Pterodactyl\Exceptions\Service\HasActiveServersException;
+use Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface;
+use Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface;
+
+class HostDeletionService
+{
+    /**
+     * @var \Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface
+     */
+    private $databaseRepository;
+
+    /**
+     * @var \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface
+     */
+    private $repository;
+
+    /**
+     * HostDeletionService constructor.
+     *
+     * @param \Pterodactyl\Contracts\Repository\DatabaseRepositoryInterface     $databaseRepository
+     * @param \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface $repository
+     */
+    public function __construct(
+        DatabaseRepositoryInterface $databaseRepository,
+        DatabaseHostRepositoryInterface $repository
+    ) {
+        $this->databaseRepository = $databaseRepository;
+        $this->repository = $repository;
+    }
+
+    /**
+     * Delete a specified host from the Panel if no databases are
+     * attached to it.
+     *
+     * @param int $host
+     * @return int
+     *
+     * @throws \Pterodactyl\Exceptions\Service\HasActiveServersException
+     */
+    public function handle(int $host): int
+    {
+        $count = $this->databaseRepository->findCountWhere([['database_host_id', '=', $host]]);
+        if ($count > 0) {
+            throw new HasActiveServersException(trans('exceptions.databases.delete_has_databases'));
+        }
+
+        return $this->repository->delete($host);
+    }
+}