<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Captcha\Google;

use Joomla\CMS\Http\HttpFactory;
use Joomla\Http\Exception\InvalidResponseCodeException;
use Joomla\Http\Http;
use ReCaptcha\RequestMethod;
use ReCaptcha\RequestParameters;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * Bridges the Joomla! HTTP API to the Google Recaptcha RequestMethod interface for a POST request.
 *
 * @since  3.9.0
 */
final class HttpBridgePostRequestMethod implements RequestMethod
{
    /**
     * URL to which requests are sent.
     *
     * @var    string
     * @since  3.9.0
     */
    public const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';

    /**
     * The HTTP adapter
     *
     * @var    Http
     * @since  3.9.0
     */
    private $http;

    /**
     * Class constructor.
     *
     * @param   Http|null  $http  The HTTP adapter
     *
     * @since   3.9.0
     */
    public function __construct(Http $http = null)
    {
        $this->http = $http ?: HttpFactory::getHttp();
    }

    /**
     * Submit the request with the specified parameters.
     *
     * @param   RequestParameters  $params  Request parameters
     *
     * @return  string  Body of the reCAPTCHA response
     *
     * @since   3.9.0
     */
    public function submit(RequestParameters $params)
    {
        try {
            $response = $this->http->post(self::SITE_VERIFY_URL, $params->toArray());

            return (string) $response->getBody();
        } catch (InvalidResponseCodeException $exception) {
            return '';
        }
    }
}