<?php

namespace Akeneo\Pim\Structure\Component\Factory;

use Akeneo\Channel\Infrastructure\Component\Repository\ChannelRepositoryInterface;
use Akeneo\Pim\Structure\Component\Model\FamilyInterface;
use Akeneo\Pim\Structure\Component\Repository\AttributeRepositoryInterface;
use Akeneo\Tool\Component\StorageUtils\Factory\SimpleFactoryInterface;

/**
 * Creates and configures a family instance.
 *
 * @author    Gildas Quemener <gildas@akeneo.com>
 * @copyright 2013 Akeneo SAS (http://www.akeneo.com)
 * @license   http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
class FamilyFactory implements SimpleFactoryInterface
{
    /** @var ChannelRepositoryInterface */
    protected $channelRepository;

    /** @var AttributeRequirementFactory */
    protected $factory;

    /** @var AttributeRepositoryInterface */
    protected $attributeRepository;

    /** @var string */
    protected $familyClass;

    /**
     * @param ChannelRepositoryInterface   $channelRepository
     * @param AttributeRequirementFactory  $factory
     * @param AttributeRepositoryInterface $attributeRepository
     * @param string                       $familyClass
     */
    public function __construct(
        ChannelRepositoryInterface $channelRepository,
        AttributeRequirementFactory $factory,
        AttributeRepositoryInterface $attributeRepository,
        $familyClass
    ) {
        $this->channelRepository = $channelRepository;
        $this->factory = $factory;
        $this->attributeRepository = $attributeRepository;
        $this->familyClass = $familyClass;
    }

    /**
     * {@inheritdoc}
     */
    public function create()
    {
        /** @var FamilyInterface $family */
        $family = new $this->familyClass();
        $identifier = $this->attributeRepository->getIdentifier();

        $family->addAttribute($identifier);
        $family->setAttributeAsLabel($identifier);

        foreach ($this->getChannels() as $channel) {
            $requirement = $this->factory->createAttributeRequirement($identifier, $channel, true);
            $family->addAttributeRequirement($requirement);
        }

        return $family;
    }

    /**
     * @return array
     */
    protected function getChannels()
    {
        return $this->channelRepository->findAll();
    }
}