scrum-poker-internal/app/Http/Controllers/RoomPlayerController.php

<?php

namespace App\Http\Controllers;

use App\Http\Requests\JoinRoomRequest;
use App\Models\Room;

class RoomPlayerController extends Controller
{
    public function join(JoinRoomRequest $request)
    {
        $validated = $request->validated();
        $user = $request->user();

        $room = Room::where('join_code', '=', $validated['join_code'])->firstOrFail();

        $player = $room->players()->create([
            'user_id' => $user?->id,
            'name' => $validated['player_name'],
            'is_moderator' => false,
            'last_seen_at' => now(),
        ]);

        $request->session()->put(
            "room_players.{$room->id}",
            $player->id,
        );

        return to_route('room.show', $room);

    }
}