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File: PaymentManager.php
<?php

/**
 * @file classes/payment/PaymentManager.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PaymentManager
 *
 * @ingroup payment
 *
 * @see Payment
 *
 * @brief Provides payment management functions.
 *
 */

namespace PKP\payment;

use Exception;
use PKP\context\Context;
use PKP\db\DAORegistry;

abstract class PaymentManager
{
    public const PAYMENT_TYPE_PUBLICATION = 7; // FIXME: This is OJS-only but referred to in pkp-lib. Move back to OJS.

    /** @var Context */
    public $_context;

    /**
     * Constructor
     *
     * @param Context $context
     */
    public function __construct($context)
    {
        $this->_context = $context;
    }

    /**
     * Queue a payment for receipt.
     *
     * @param object $queuedPayment
     * @param string $expiryDate optional
     *
     * @return mixed Queued payment ID for new payment, or false if fails
     */
    public function queuePayment($queuedPayment, $expiryDate = null)
    {
        if (!$this->isConfigured()) {
            return false;
        }

        $queuedPaymentDao = DAORegistry::getDAO('QueuedPaymentDAO'); /** @var QueuedPaymentDAO $queuedPaymentDao */
        $queuedPaymentId = $queuedPaymentDao->insertObject($queuedPayment, $expiryDate);

        // Perform periodic cleanup
        if (time() % 100 == 0) {
            $queuedPaymentDao->deleteExpired();
        }

        return $queuedPaymentId;
    }

    /**
     * Abstract method for fetching the payment plugin
     *
     * @return \PKP\plugins\PaymethodPlugin
     */
    abstract public function getPaymentPlugin();

    /**
     * Check if there is a payment plugin and if is configured
     *
     * @return bool
     */
    public function isConfigured()
    {
        $paymentPlugin = $this->getPaymentPlugin();
        if ($paymentPlugin !== null) {
            return $paymentPlugin->isConfigured($this->_context);
        }
        return false;
    }

    /**
     * Get the payment form for the configured payment plugin and specified payment.
     *
     * @param QueuedPayment $queuedPayment
     *
     * @return \PKP\form\Form
     */
    public function getPaymentForm($queuedPayment)
    {
        $paymentPlugin = $this->getPaymentPlugin();
        if ($paymentPlugin !== null && $paymentPlugin->isConfigured($this->_context)) {
            return $paymentPlugin->getPaymentForm($this->_context, $queuedPayment);
        }
        return false;
    }

    /**
     * Fetch a queued payment
     *
     * @param int $queuedPaymentId
     *
     * @return QueuedPayment
     */
    public function getQueuedPayment($queuedPaymentId)
    {
        $queuedPaymentDao = DAORegistry::getDAO('QueuedPaymentDAO'); /** @var QueuedPaymentDAO $queuedPaymentDao */
        $queuedPayment = $queuedPaymentDao->getById($queuedPaymentId);
        return $queuedPayment;
    }

    /**
     * Fulfill a queued payment
     *
     * @param \PKP\core\PKPRequest $request
     * @param QueuedPayment $queuedPayment
     *
     * @return bool success/failure
     */
    abstract public function fulfillQueuedPayment($request, $queuedPayment);
}

if (!PKP_STRICT_MODE) {
    class_alias('\PKP\payment\PaymentManager', '\PaymentManager');
}