<?php

declare(strict_types=1);

namespace App\State;

use ApiPlatform\Metadata\GetCollection;
use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProviderInterface;
use App\ApiResource\ManagedApplication;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

final readonly class ManagedApplicationProvider implements ProviderInterface
{
    /**
     * @param list<array{name: string, slug: string, maintenance_path: string}> $managedApplications
     */
    public function __construct(
        #[Autowire('%app.managed_applications%')]
        private array $managedApplications,
    ) {}

    public function provide(Operation $operation, array $uriVariables = [], array $context = []): ManagedApplication|array
    {
        if ($operation instanceof GetCollection) {
            return array_map(
                fn (array $app) => $this->buildDto($app),
                $this->managedApplications,
            );
        }

        $slug = $uriVariables['slug'] ?? '';

        foreach ($this->managedApplications as $app) {
            if ($app['slug'] === $slug) {
                return $this->buildDto($app);
            }
        }

        throw new NotFoundHttpException(sprintf('Application "%s" not found.', $slug));
    }

    /**
     * @param array{name: string, slug: string, maintenance_path: string} $app
     */
    private function buildDto(array $app): ManagedApplication
    {
        $dto              = new ManagedApplication();
        $dto->slug        = $app['slug'];
        $dto->name        = $app['name'];
        $dto->maintenance = file_exists($app['maintenance_path']);

        return $dto;
    }
}