<?php

/**
 * @file pages/payment/PaymentHandler.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2003-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PaymentHandler
 *
 * @ingroup pages_payment
 *
 * @brief Handle requests for payment functions.
 */

namespace APP\pages\payment;

use APP\core\Application;
use APP\handler\Handler;
use APP\template\TemplateManager;
use PKP\db\DAORegistry;
use PKP\payment\QueuedPaymentDAO;
use PKP\plugins\PluginRegistry;
use PKP\security\Validation;

class PaymentHandler extends Handler
{
    /**
     * Pass request to plugin.
     *
     * @param array $args
     * @param \APP\core\Request $request
     */
    public function plugin($args, $request)
    {
        $paymentMethodPlugins = PluginRegistry::loadCategory('paymethod');
        $paymentMethodPluginName = array_shift($args);
        if (empty($paymentMethodPluginName) || !isset($paymentMethodPlugins[$paymentMethodPluginName])) {
            $request->redirect(null, null, 'index');
        }

        $paymentMethodPlugin = & $paymentMethodPlugins[$paymentMethodPluginName];
        if (!$paymentMethodPlugin->isConfigured($request->getContext())) {
            $request->redirect(null, null, 'index');
        }

        $paymentMethodPlugin->handle($args, $request);
    }

    /**
     * Present a landing page from which to fulfill a payment.
     *
     * @param array $args
     * @param \APP\core\Request $request
     */
    public function pay($args, $request)
    {
        if (!Validation::isLoggedIn()) {
            Validation::redirectLogin();
        }

        $paymentManager = Application::getPaymentManager($request->getContext());
        $templateMgr = TemplateManager::getManager($request);
        $queuedPaymentDao = DAORegistry::getDAO('QueuedPaymentDAO'); /** @var QueuedPaymentDAO $queuedPaymentDao */
        $queuedPayment = $queuedPaymentDao->getById($queuedPaymentId = array_shift($args));
        if (!$queuedPayment) {
            $templateMgr->assign([
                'pageTitle' => 'common.payment',
                'message' => 'payment.notFound',
            ]);
            $templateMgr->display('frontend/pages/message.tpl');
            return;
        }

        $paymentForm = $paymentManager->getPaymentForm($queuedPayment);
        $paymentForm->display($request);
    }
}