<?php

declare(strict_types=1);

namespace App\Controller;

use App\Gateway\TMDBGateway;
use App\Repository\ActorRepository;
use App\Repository\MovieRepository;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\Serializer\SerializerInterface;

class HomepageController extends AbstractController
{
    public function __construct(
        private readonly ActorRepository $actorRepository
    ) {}

    #[Route('/', name: 'app_homepage')]
    public function index(SerializerInterface $serializer): Response
    {
        // Final actor to be guessed
        $mainActor = $this->actorRepository->findOneRandom(4);

        // Actors for the grid
        $actors = [];
        $leftSize = 0;
        $rightSize = 0;
        foreach (str_split(strtolower($mainActor->getName())) as $char) {
            if (!preg_match('/[a-z]/', $char)) {
                continue;
            }

            $tryFindActor = 0;
            do {
                $actor = $this->actorRepository->findOneRandom(4, $char);
                ++$tryFindActor;
            } while (
                $actor === $mainActor
                || in_array($actor, array_map(fn ($actorMap) => $actorMap['actor'], $actors))
                || $tryFindActor < 5
            );

            $actorData = [
                'actor' => $actor,
                'pos' => strpos($actor->getName(), $char),
            ];

            if ($leftSize < $actorData['pos']) {
                $leftSize = $actorData['pos'];
            }

            $rightSizeActor = strlen($actor->getName()) - $actorData['pos'] - 1;
            if ($rightSize < $rightSizeActor) {
                $rightSize = $rightSizeActor;
            }

            $actors[] = $actorData;
        }

        // Predict grid size
        $width = $rightSize + $leftSize + 1;
        $middle = $leftSize;

        // Build JSON-serializable grid for React
        $grid = array_map(fn (array $actorData) => [
            'actorName' => $actorData['actor']->getName(),
            'actorId' => $actorData['actor']->getId(),
            'pos' => $actorData['pos'],
        ], $actors);

        return $this->render('homepage/index.html.twig', [
            'grid' => $grid,
            'width' => $width,
            'middle' => $middle,
        ]);
    }
}