<?php
/**
 * 2007-2016 [PagSeguro Internet Ltda.]
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @author    PagSeguro Internet Ltda.
 * @copyright 2007-2016 PagSeguro Internet Ltda.
 * @license   http://www.apache.org/licenses/LICENSE-2.0
 *
 */

namespace PagSeguro\Services\Checkout;

use PagSeguro\Domains\Account\Credentials;
use PagSeguro\Helpers\Crypto;
use PagSeguro\Helpers\Mask;
use PagSeguro\Resources\Connection;
use PagSeguro\Resources\Http;
use PagSeguro\Resources\Log\Logger;
use PagSeguro\Resources\Responsibility;

/**
 * Class Payment
 * @package PagSeguro\Services\Checkout
 */
class Payment
{
    /**
     * @param \PagSeguro\Domains\Account\Credentials $credentials
     * @param \PagSeguro\Domains\Requests\Payment $payment
     * @param bool $onlyCode
     * @return string
     * @throws \Exception
     */
    public static function checkout(Credentials $credentials, \PagSeguro\Domains\Requests\Payment $payment, $onlyCode)
    {
        Logger::info("Begin", ['service' => 'Checkout']);
        try {
            $connection = new Connection\Data($credentials);
            $http = new Http();
            Logger::info(sprintf("POST: %s", self::request($connection)), ['service' => 'Checkout']);
            Logger::info(
                sprintf(
                    "Params: %s",
                    json_encode(Crypto::encrypt(\PagSeguro\Parsers\Checkout\Request::getData($payment)))
                ),
                ['service' => 'Checkout']
            );
            $http->post(
                self::request($connection),
                \PagSeguro\Parsers\Checkout\Request::getData($payment),
                20,
                \PagSeguro\Configuration\Configure::getCharset()->getEncoding()
            );

            $response = Responsibility::http(
                $http,
                new \PagSeguro\Parsers\Checkout\Request
            );

            if ($onlyCode) {
                Logger::info(sprintf("Code: %s", current($response)), ['service' => 'Checkout']);
                return $response;
            }
            Logger::info(
                sprintf("Checkout URL: %s", self::response($connection, $response)),
                ['service' => 'Checkout']
            );
            return self::response($connection, $response);
        } catch (\Exception $exception) {
            Logger::error($exception->getMessage(), ['service' => 'Session']);
            throw $exception;
        }
    }

    /**
     * @param Connection\Data $connection
     * @return string
     */
    private static function request(Connection\Data $connection)
    {
        return $connection->buildPaymentRequestUrl() . "?" . $connection->buildCredentialsQuery();
    }

    /**
     * @param Connection\Data $connection
     * @param $response
     * @return string
     */
    private static function response(Connection\Data $connection, $response)
    {
        return $connection->buildPaymentResponseUrl() . "?code=" . $response->getCode();
    }
}
