feat(core): prevent using servers with existing resources as build servers

app/Livewire/Server/Show.php

@@ -7,6 +7,7 @@ use App\Actions\Server\StopSentinel;
 use App\Events\ServerReachabilityChanged;
 use App\Models\Server;
 use Livewire\Attributes\Computed;
+use Livewire\Attributes\Locked;
 use Livewire\Attributes\Validate;
 use Livewire\Component;
 
@@ -50,6 +51,9 @@ class Show extends Component
     #[Validate(['required'])]
     public bool $isBuildServer;
 
+    #[Locked]
+    public bool $isBuildServerLocked = false;
+
     #[Validate(['required'])]
     public bool $isMetricsEnabled;
 
@@ -95,6 +99,9 @@ class Show extends Component
         try {
             $this->server = Server::ownedByCurrentTeam()->whereUuid($server_uuid)->firstOrFail();
             $this->syncData();
+            if (! $this->server->isEmpty()) {
+                $this->isBuildServerLocked = true;
+            }
         } catch (\Throwable $e) {
             return handleError($e, $this);
         }

app/Models/Server.php

@@ -1341,4 +1341,11 @@ $schema://$host {
             throw new \Exception('Invalid proxy type.');
         }
     }
+
+    public function isEmpty()
+    {
+        return $this->applications()->count() == 0 &&
+            $this->databases()->count() == 0 &&
+            $this->services()->count() == 0;
+    }
 }

resources/views/livewire/server/show.blade.php

@@ -134,7 +134,14 @@
                     <div class="w-full">
                         @if (!$server->isLocalhost())
                             <div class="w-96">
-                                <x-forms.checkbox instantSave id="isBuildServer" label="Use it as a build server?" />
+                                @if ($isBuildServerLocked)
+                                    <x-forms.checkbox disabled instantSave id="isBuildServer"
+                                        helper="You can't use this server as a build server because it has defined resources."
+                                        label="Use it as a build server?" />
+                                @else
+                                    <x-forms.checkbox instantSave id="isBuildServer"
+                                        label="Use it as a build server?" />
+                                @endif
                             </div>
 
                             @if (!$server->isBuildServer() && !$server->settings->is_cloudflare_tunnel)