<?php

namespace App\Security;

use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Authorization\Voter\Voter;
use App\DBAL\Types\RightType;
use App\Entity\Source\SourceInterface;
use App\DBAL\Types\LayerType;
use App\Entity\UserInterface;

/**
 * @author kevinfrantz
 *
 * @see https://symfony.com/doc/current/security/voters.html
 */
class SourceVoter extends Voter
{
    /**
     * @var string[]
     * @var SourceInterface $subject
     *                      {@inheritdoc}
     *
     * @see \Symfony\Component\Security\Core\Authorization\Voter\Voter::supports()
     */
    protected function supports($attribute, $subject)
    {
        return $this->checkInstance($subject) && $this->checkRight($attribute);
    }

    //private function checkLayer(string $layer):bool{
    //    return (in_array($right, array_keys(LayerType::getChoices())));
    //}

    private function checkRight(string $right): bool
    {
        return in_array($right, array_keys(RightType::getChoices()));
    }

    private function checkInstance($subject): bool
    {
        return $subject instanceof SourceInterface;
    }

    /**
     * @todo add if father, that it should have all rights!
     *
     * @param string[]        $attribute
     * @param SourceInterface $subject
     * @param TokenInterface  $token
     *                                   {@inheritdoc}
     *
     * @see \Symfony\Component\Security\Core\Authorization\Voter\Voter::voteOnAttribute()
     */
    protected function voteOnAttribute($attribute, $subject, TokenInterface $token)
    {
        /**
         * @var UserInterface
         */
        $user = $token->getUser();

        return $subject->getNode()
            ->getLaw()
            ->isGranted($user->getSource()->getNode(), LayerType::SOURCE, $attribute);
    }
}