Add ui elements for handling server transfers, add TransferJob.php and TransferService.php

app/Http/Controllers/Admin/Servers/ServerTransferController.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace Pterodactyl\Http\Controllers\Admin\Servers;
+
+use Illuminate\Bus\Dispatcher;
+use Illuminate\Http\Request;
+use Prologue\Alerts\AlertsMessageBag;
+use Pterodactyl\Http\Controllers\Controller;
+use Pterodactyl\Jobs\Server\TransferJob;
+use Pterodactyl\Models\Server;
+use Pterodactyl\Repositories\Eloquent\ServerRepository;
+use Pterodactyl\Repositories\Eloquent\LocationRepository;
+use Pterodactyl\Repositories\Eloquent\NodeRepository;
+
+class ServerTransferController extends Controller
+{
+    /**
+     * @var \Prologue\Alerts\AlertsMessageBag
+     */
+    private $alert;
+
+    /**
+     * @var \Illuminate\Bus\Dispatcher
+     */
+    private $dispatcher;
+
+    /**
+     * @var \Pterodactyl\Repositories\Eloquent\ServerRepository
+     */
+    private $repository;
+
+    /**
+     * @var \Pterodactyl\Repositories\Eloquent\LocationRepository
+     */
+    private $locationRepository;
+
+    /**
+     * @var \Pterodactyl\Repositories\Eloquent\NodeRepository
+     */
+    private $nodeRepository;
+
+    /**
+     * ServerTransferController constructor.
+     *
+     * @param \Prologue\Alerts\AlertsMessageBag $alert
+     * @param \Illuminate\Bus\Dispatcher $dispatcher
+     * @param \Pterodactyl\Repositories\Eloquent\ServerRepository $repository
+     * @param \Pterodactyl\Repositories\Eloquent\LocationRepository $locationRepository
+     * @param \Pterodactyl\Repositories\Eloquent\NodeRepository $nodeRepository
+     */
+    public function __construct(
+        AlertsMessageBag $alert,
+        Dispatcher $dispatcher,
+        ServerRepository $repository,
+        LocationRepository $locationRepository,
+        NodeRepository $nodeRepository
+    ) {
+        $this->alert = $alert;
+        $this->dispatcher = $dispatcher;
+        $this->repository = $repository;
+        $this->locationRepository = $locationRepository;
+        $this->nodeRepository = $nodeRepository;
+    }
+
+    /**
+     * Starts a transfer of a server to a new node.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @param \Pterodactyl\Models\Server $server
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function transfer(Request $request, Server $server)
+    {
+        $validatedData = $request->validate([
+            'node_id' => 'required|exists:nodes,id',
+            'allocation_id' => 'required|bail|unique:servers|exists:allocations,id',
+            'allocation_additional' => 'nullable',
+        ]);
+
+        $node_id = $validatedData['node_id'];
+        $allocation_id = $validatedData['allocation_id'];
+        $additional_allocations = $validatedData['allocation_additional'] ?? [];
+
+        // Check if the node is viable for the transfer.
+        $node = $this->nodeRepository->getNodeWithResourceUsage($node_id);
+        if ($node->isViable($server->memory, $server->disk)) {
+            // TODO: Run TransferJob.
+            $this->dispatcher->dispatch(new TransferJob($server, $node, $allocation_id, $additional_allocations));
+
+            $this->alert->success(trans('admin/server.alerts.transfer_started'))->flash();
+        } else {
+            $this->alert->danger(trans('admin/server.alerts.transfer_not_viable'))->flash();
+        }
+
+        return redirect()->route('admin.servers.view.manage', $server->id);
+    }
+}