initial commit

app/Events/GameRoomError.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Events;
+
+use Illuminate\Broadcasting\Channel;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Foundation\Events\Dispatchable;
+
+/**
+ * Tells a client why its room control frame was rejected (e.g. joining a
+ * room that does not exist). Broadcast to game.{room}, which the requesting
+ * client is already subscribed to.
+ */
+final class GameRoomError implements ShouldBroadcastNow
+{
+    use Dispatchable;
+    use InteractsWithSockets;
+
+    public function __construct(
+        public readonly string $room,
+        public readonly string $code,
+    ) {}
+
+    public function broadcastOn(): Channel
+    {
+        return new Channel('game.'.$this->room);
+    }
+
+    public function broadcastAs(): string
+    {
+        return 'room-error';
+    }
+
+    /** @return array{code: string, room: string} */
+    public function broadcastWith(): array
+    {
+        return [
+            'code' => $this->code,
+            'room' => $this->room,
+        ];
+    }
+}