<?php

declare(strict_types=1);

namespace App\Controller;

use App\Entity\Url;
use App\Form\Type\LyhendiType;
use App\Hasher;
use App\Repository\UrlRepository;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\Persistence\ManagerRegistry;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

final class LyhendiController extends AbstractController
{
    public function __construct(private ManagerRegistry $managerRegistry, private Hasher $hasher)
    {
    }

    /**
     * @Route("/", methods={"GET"})
     */
    public function index(): Response
    {
        $form = $this->createLyhendiForm();
        $lastResult = $this->getRepository()->findOneBy([], ['id' => 'DESC']);
        return $this->renderForm('index.html.twig', ['form' => $form, 'last' => $lastResult]);
    }

    private function createLyhendiForm(): FormInterface
    {
        return $this->createForm(LyhendiType::class);
    }

    private function getRepository(): UrlRepository
    {
        /** @noinspection PhpIncompatibleReturnTypeInspection */
        return $this->getEntityManager()->getRepository(Url::class);
    }

    private function getEntityManager(): EntityManagerInterface
    {
        /** @noinspection PhpIncompatibleReturnTypeInspection */
        return $this->managerRegistry->getManagerForClass(Url::class);
    }

    /**
     * @Route("/", methods={"POST"})
     */
    public function insert(Request $request): Response
    {
        $form = $this->createForm(LyhendiType::class);
        $form->handleRequest($request);
        if (!$form->isSubmitted()) {
            return $this->getRedirectToHome();
        }
        if ($form->isValid()) {
            /** @var Url $url */
            $url = $form->getData();
            $manager = $this->getEntityManager();
            $manager->persist($url);
            $manager->flush();
            $publicString = $url->getCustomString() ?? $this->hasher->encode($url->getId());
            return $this->redirectToRoute('app_lyhendi_get', ['string' => $publicString]);
        }
        return $this->renderForm('index.html.twig', ['form' => $form, 'last' => null]);
    }

    private function getRedirectToHome(): RedirectResponse
    {
        return $this->redirectToRoute('app_lyhendi_index');
    }

    /**
     * @Route("/{string}", methods={"GET"})
     */
    public function get(string $string): Response
    {
        $url = $this->getRepository()->findOneByAny($string);
        if ($url === null) {
            return $this->getRedirectToHome();
        }
        return new Response($url->getLongUrl());
    }
}