<?php

declare(strict_types=1);

namespace App\State;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProcessorInterface;
use App\Entity\Environment;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

final readonly class MaintenanceToggleProcessor implements ProcessorInterface
{
    /**
     * @param Environment $data
     */
    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): Environment
    {
        $maintenancePath = $data->getMaintenanceFilePath();

        if (null === $maintenancePath) {
            throw new BadRequestHttpException('Maintenance file path is not configured for this environment.');
        }

        $requestData = $context['request']?->toArray() ?? [];
        $enableMaintenance = $requestData['maintenance'] ?? false;

        if ($enableMaintenance) {
            $directory = dirname($maintenancePath);

            if (!is_dir($directory) && !mkdir($directory, 0755, true)) {
                throw new \RuntimeException(sprintf('Cannot create directory "%s".', $directory));
            }

            if (!touch($maintenancePath)) {
                throw new \RuntimeException(sprintf('Cannot create maintenance file at "%s".', $maintenancePath));
            }
        } elseif (file_exists($maintenancePath)) {
            if (!unlink($maintenancePath)) {
                throw new \RuntimeException(sprintf('Cannot remove maintenance file at "%s".', $maintenancePath));
            }
        }

        return $data;
    }
}