scrum-poker-internal/app/Events/RoomStateChanged.php

<?php

namespace App\Events;

use App\Enums\RoomStateChange;
use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

class RoomStateChanged implements ShouldBroadcastNow
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * @param  array<string, mixed>|null  $state
     */
    public function __construct(
        public readonly string $roomId,
        public readonly int $version,
        public readonly RoomStateChange $change,
        public readonly ?array $state = null,
        public readonly ?int $affectedPlayerId = null,
        public readonly ?string $affectedInstanceId = null,
    ) {}

    public function broadcastOn(): Channel
    {
        return new Channel("rooms.{$this->roomId}");
    }

    public function broadcastAs(): string
    {
        return 'room.state.changed';
    }

    /**
     * @return array{version: int, change: string, state: array<string, mixed>|null, affected_player_id?: int, affected_instance_id?: string}
     */
    public function broadcastWith(): array
    {
        $payload = [
            'version' => $this->version,
            'change' => $this->change->value,
            'state' => $this->state,
        ];

        if ($this->affectedPlayerId !== null) {
            $payload['affected_player_id'] = $this->affectedPlayerId;
        }

        if ($this->affectedInstanceId !== null) {
            $payload['affected_instance_id'] = $this->affectedInstanceId;
        }

        return $payload;
    }
}