<?php
/**
 * 2007-2019 PrestaShop and Contributors
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2019 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */

namespace PrestaShop\PrestaShop\Adapter\Form\ChoiceProvider;

use PrestaShop\PrestaShop\Core\Form\FormChoiceProviderInterface;
use Shop;
use ShopGroup;

/**
 * Class ShopTreeChoiceProvider provides shop choices for choice tree.
 *
 * @internal
 */
final class ShopTreeChoiceProvider implements FormChoiceProviderInterface
{
    /**
     * {@inheritdoc}
     */
    public function getChoices()
    {
        $shopGroups = ShopGroup::getShopGroups();
        $choices = [];

        /** @var ShopGroup $shopGroup */
        foreach ($shopGroups as $shopGroup) {
            $shopGroupChoices = [
                'name' => $shopGroup->name,
                'id_shop' => null,
                'children' => [],
            ];

            $shops = ShopGroup::getShopsFromGroup($shopGroup->id);

            foreach ($shops as $shopId) {
                $shop = Shop::getShop($shopId['id_shop']);

                // If context employee doesn't have access to a shop, $shop will be false
                if (false === $shop) {
                    continue;
                }

                $shopGroupChoices['children'][] = [
                    'name' => $shop['name'],
                    'id_shop' => $shop['id_shop'],
                ];
            }

            $choices[] = $shopGroupChoices;
        }

        return $choices;
    }
}
