<?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

namespace Magento\Directory\Test\Handler\CurrencyRate;

use Magento\Mtf\Fixture\FixtureInterface;
use Magento\Mtf\Handler\Curl as AbstractCurl;
use Magento\Mtf\Util\Protocol\CurlInterface;
use Magento\Mtf\Util\Protocol\CurlTransport;
use Magento\Mtf\Util\Protocol\CurlTransport\BackendDecorator;

/**
 * Curl handler for setting currency rates.
 */
class Curl extends AbstractCurl implements CurrencyRateInterface
{
    /**
     * Post request for setting currency rate.
     *
     * @param FixtureInterface $fixture [optional]
     * @return mixed|string
     * @throws \Exception
     */
    public function persist(FixtureInterface $fixture = null)
    {
        $data = $this->prepareData($fixture);

        $url = $_ENV['app_backend_url'] . 'admin/system_currency/saveRates/';
        $curl = new BackendDecorator(new CurlTransport(), $this->_configuration);
        $curl->write($url, $data);
        $response = $curl->read();
        $curl->close();

        if (!strpos($response, 'data-ui-id="messages-message-success"')) {
            throw new \Exception("Currency rates setting by curl handler was not successful! Response:\n" . $response);
        }
    }

    /**
     * Prepare data for POST request.
     *
     * @param FixtureInterface $fixture
     * @return array
     */
    protected function prepareData(FixtureInterface $fixture)
    {
        $result = [];
        $data = $fixture->getData();
        $result['rate'][$data['currency_from']][$data['currency_to']] = $data['rate'];

        return $result;
    }
}
