Inventory/src/Controller/MaintenanceController.php

<?php

declare(strict_types=1);

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpKernel\KernelInterface;
use Symfony\Component\Routing\Attribute\Route;

final class MaintenanceController extends AbstractController
{
    public function __construct(
        private readonly KernelInterface $kernel,
    ) {}

    #[Route('/api/maintenance/check', name: 'maintenance_check', methods: ['GET'])]
    public function check(): JsonResponse
    {
        return new JsonResponse([
            'enabled' => file_exists($this->flagPath()),
        ]);
    }

    #[Route('/api/admin/maintenance', name: 'admin_maintenance_status', methods: ['GET'])]
    public function status(): JsonResponse
    {
        $this->denyAccessUnlessGranted('ROLE_ADMIN');

        return new JsonResponse([
            'enabled' => file_exists($this->flagPath()),
        ]);
    }

    #[Route('/api/admin/maintenance', name: 'admin_maintenance_toggle', methods: ['PUT'])]
    public function toggle(): JsonResponse
    {
        $this->denyAccessUnlessGranted('ROLE_ADMIN');

        $path = $this->flagPath();

        if (file_exists($path)) {
            unlink($path);
            $enabled = false;
        } else {
            file_put_contents($path, (string) time());
            $enabled = true;
        }

        return new JsonResponse(['enabled' => $enabled]);
    }

    private function flagPath(): string
    {
        return $this->kernel->getProjectDir() . '/var/maintenance';
    }
}