<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Возврат покупателя с платёжной формы (Success URL / Fail URL / Return URL).
 *
 * Возврат браузера не доказывает оплату: доступ выдаёт только Pay URL.
 * Здесь лишь показываем состояние заказа и ведём дальше.
 *
 * @package    paygw_moneta
 * @copyright  2026 Moneta Labs {@link https://moneta.ru/}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

use paygw_moneta\local\order\TransactionRepository;
use paygw_moneta\local\protocol\AssistantTransactionId;

require_once(__DIR__ . '/../../../config.php');

require_login();

$transactionid = required_param('MNT_TRANSACTION_ID', PARAM_RAW_TRIMMED);
$outcome = optional_param('outcome', 'success', PARAM_ALPHA);

$merchantorderid = AssistantTransactionId::parse($transactionid);

$order = $merchantorderid === null ? null : (new TransactionRepository())->findByMerchantOrderId($merchantorderid);
if ($order === null) {
    throw new moodle_exception('error:ordernotfound', 'paygw_moneta');
}
if ($order->userId !== (int) $USER->id && !is_siteadmin()) {
    throw new moodle_exception('error:ordernotfound', 'paygw_moneta');
}

$successurl = core_payment\helper::get_success_url($order->component, $order->paymentArea, $order->itemId);
if ($order->isPaid()) {
    redirect($successurl, get_string('paymentconfirmed', 'paygw_moneta'), 0, \core\output\notification::NOTIFY_SUCCESS);
}

$PAGE->set_context(context_system::instance());
$PAGE->set_url('/payment/gateway/moneta/return.php', ['MNT_TRANSACTION_ID' => $transactionid, 'outcome' => $outcome]);
$PAGE->set_title(get_string('paymentpending', 'paygw_moneta'));
$PAGE->set_heading(get_string('paymentpending', 'paygw_moneta'));

echo $OUTPUT->header();
if ($outcome === 'success') {
    echo $OUTPUT->notification(
        get_string('paymentpending_help', 'paygw_moneta'),
        \core\output\notification::NOTIFY_INFO,
    );
} else {
    echo $OUTPUT->notification(
        get_string('paymentnotcompleted', 'paygw_moneta'),
        \core\output\notification::NOTIFY_WARNING,
    );
}

echo $OUTPUT->single_button($successurl, get_string('continue'), 'get');
echo $OUTPUT->footer();