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<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * 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.md.
 * 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://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

namespace PrestaShop\PrestaShop\Core\Localization\Currency;

use PrestaShop\PrestaShop\Core\Localization\Currency\DataLayer\CurrencyInstalled as CurrencyInstalledDataLayer;

/**
 * Localization CurrencyData source
 * Uses a stack of middleware data layers to read / write CurrencyData objects.
 */
class CurrencyDataSource implements DataSourceInterface
{
    /**
     * The top layer of the middleware stack.
     *
     * @var CurrencyDataLayerInterface
     */
    protected $topLayer;

    /**
     * @var CurrencyInstalledDataLayer
     */
    protected $installedDataLayer;

    /**
     * CurrencyDataSource constructor needs CurrencyDataLayer objects.
     * This top layer might be chained with lower layers and will be the entry point of this middleware stack.
     *
     * @param CurrencyDataLayerInterface $topLayer
     * @param CurrencyInstalledDataLayer $installedDataLayer
     */
    public function __construct(CurrencyDataLayerInterface $topLayer, CurrencyInstalledDataLayer $installedDataLayer)
    {
        $this->topLayer = $topLayer;
        $this->installedDataLayer = $installedDataLayer;
    }

    /**
     * {@inheritdoc}
     */
    public function getLocalizedCurrencyData(LocalizedCurrencyId $localizedCurrencyId)
    {
        return $this->topLayer->read($localizedCurrencyId);
    }

    /**
     * Is this currency available ?
     * (an available currency is not deleted AND is active).
     *
     * @param string $currencyCode
     *
     * @return bool True if currency is available
     */
    public function isCurrencyAvailable($currencyCode)
    {
        return $this->installedDataLayer->isAvailable($currencyCode);
    }

    /**
     * {@inheritdoc}
     */
    public function getAvailableCurrenciesData($localeCode)
    {
        return $this->formatCurrenciesData($this->installedDataLayer->getAvailableCurrencyCodes(), $localeCode);
    }

    /**
     * {@inheritdoc}
     */
    public function getAllInstalledCurrenciesData($localeCode)
    {
        return $this->formatCurrenciesData($this->installedDataLayer->getAllInstalledCurrencyIsoCodes(), $localeCode);
    }

    /**
     * @param array $currencyCodes
     * @param string $localeCode
     *
     * @return array
     */
    private function formatCurrenciesData(array $currencyCodes, $localeCode)
    {
        $currenciesData = [];
        foreach ($currencyCodes as $currencyCode) {
            $currenciesData[] = $this->getLocalizedCurrencyData(new LocalizedCurrencyId($currencyCode, $localeCode));
        }

        return $currenciesData;
    }
}