<?php

namespace App\Form\Extension;

use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\Extension\Core\Type\FormType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\OptionsResolver\OptionsResolver;
use voku\helper\AntiXSS;

class AntiXssExtension extends AbstractTypeExtension
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        if (false === $options['anti_xss']) {
            return;
        }

        $builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
            $data = $event->getData();
            if (null === $data) {
                return;
            }
            $antiXss = new AntiXSS();
            foreach ($data as $key => $value) {
                $data[$key] = $antiXss->xss_clean($value);
            }
            $event->setData($data);
        });
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'anti_xss' => false,
        ]);
    }

    public static function getExtendedTypes(): iterable
    {
        return [FormType::class];
    }
}