<?php

/**
 * PayAnyWay - WHMCS Callback Handler
 *
 * Receives payment status and check notifications from PayAnyWay
 * and automatically marks WHMCS invoices as paid upon successful payments.
 *
 * Notification URL to configure in your app:
 * https://your_whmcs_site/modules/gateways/callback/payanyway.php
 */

require_once __DIR__ . '/../../../init.php';
require_once __DIR__ . '/../../../includes/gatewayfunctions.php';
require_once __DIR__ . '/../../../includes/invoicefunctions.php';
require_once __DIR__ . '/../payanyway.php';

$requestData = ($_SERVER['REQUEST_METHOD'] === 'POST') ? $_POST : $_GET;

try {
    $gatewayModuleName = 'payanyway';
    $gatewayParams = getGatewayVariables($gatewayModuleName);
    if (!$gatewayParams['type']) {
        payanyway_sendResponse('FAIL', 500); // Module Not Activated
    }

    $gatewayName = payanyway_getWhmcsVariableOrFail($gatewayParams, 'name');
    $integrityCode = payanyway_getPayAnyWayIntegrityCodeOrFail($gatewayParams);

    $callbackData = payanyway_getCallbackData($requestData);

    ('CHECK' === $callbackData['MNT_COMMAND'])
        ? payanyway_handleCheckCallback($callbackData, $gatewayName, $integrityCode)
        : payanyway_handlePayCallback($callbackData, $gatewayName, $integrityCode, $gatewayModuleName);
} catch (\PayAnyWayException $e) {
    logTransaction($gatewayModuleName, $requestData, 'Error: ' . $e->getMessage());
    payanyway_sendResponse('FAIL', 500);
} catch (\Exception $e) {
    logTransaction($gatewayModuleName, $requestData, 'Error: ' . $e->getMessage());
    payanyway_sendResponse('FAIL', 500);
}