fix: refactored the codebase

app/Http/Controllers/RoomJoinController.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Http\Resources\ClosedRoomResource;
+use App\Models\Player;
+use App\Services\Rooms\RoomParticipationService;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+use Inertia\Response;
+
+class RoomJoinController extends Controller
+{
+    public function __construct(
+        private readonly RoomParticipationService $roomParticipation,
+    ) {}
+
+    public function __invoke(Request $request): Response|RedirectResponse
+    {
+        $joinCode = strtoupper(trim((string) $request->query('join_code')));
+        $room = $this->roomParticipation->findByJoinCode($joinCode);
+        $existingPlayer = $room !== null
+            ? $this->roomParticipation->findExistingPlayer(
+                $room,
+                $request->user(),
+                $request->session()->get("room_players.{$room->id}"),
+            )
+            : null;
+
+        if (
+            $room !== null
+            && ! $room->isClosed()
+            && $existingPlayer instanceof Player
+            && $existingPlayer->inactive_at === null
+        ) {
+            return to_route('room.show', $room);
+        }
+
+        return Inertia::render('rooms/Join', [
+            'join_code' => $joinCode,
+            'defaultPlayerName' => $existingPlayer instanceof Player
+                ? $existingPlayer->name
+                : $request->user()?->name,
+            'closedRoom' => $room?->isClosed()
+                ? (new ClosedRoomResource($room))->resolve($request)
+                : null,
+        ]);
+    }
+}