<?php

namespace Velvel\ZDFBundle\Form\DataTransformer;

use Symfony\Component\Form\Exception\TransformationFailedException;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use Symfony\Component\Form\DataTransformerInterface;
use Doctrine\Common\Persistence\ObjectManager;

/**
 * Country to Distributed Video Country transformer
 */
class CountryToDVCTransformer implements DataTransformerInterface
{
    private $om;

    /**
     * Constructor
     *
     * @param \Doctrine\Common\Persistence\ObjectManager $om Entity Manager
     *
     * @author r1pp3rj4ck <attila.bukor@velvel.hu>
     */
    public function __construct(ObjectManager $om)
    {
        $this->om = $om;
    }

    /**
     * Transforms DVC to Country array
     *
     * @param array $value DVC array
     *
     * @author   r1pp3rj4ck <attila.bukor@velvel.hu>
     * @return array
     */
    public function reverseTransform($value)
    {
        var_dump('reverseTransform value:');
        var_dump($value);
        if (!$value)
        {
            return array();
        }
        if (!is_array($value))
        {
            throw new UnexpectedTypeException($value, 'array');
        }

        $array = array();
        foreach ($value as $val)
        {
            $array[] = is_object($val) ? $val->getCountry() : $val;
        }
        var_dump('reverseTransform final:');
        var_dump($array);

        return $array;
    }

    /**
     * Transforms countries to DVC array
     *
     * @param array $value Country array
     *
     * @author r1pp3rj4ck <attila.bukor@velvel.hu>
     * @return array
     */
    public function transform($value)
    {
        var_dump('transform value:');
        var_dump($value);
        if (!$value)
        {
            return array();
        }
        if (!is_array($value))
        {
            throw new UnexpectedTypeException($value, 'array');
        }

        $array = new \Doctrine\Common\Collections\ArrayCollection();
        foreach ($value as $v)
        {
            $country = $this->om->find('VelvelZDFBundle:Country', $v);
            if (!$country)
            {
                throw new TransformationFailedException;
            }
            $a = new \Velvel\ZDFBundle\Entity\DisabledVideoCountry();
            $a->setCountry($country);
            $array[] = $a;
        }

        var_dump('transform final:');
        var_dump($array);
//        die();
        return $array;
    }
}