<?php
/*
 * @version			$Id: index.php 10381 2008-06-01 03:35:53Z $
 * @package			Carteasy
 * @copyright		Copyright (C) 2005 - 2011 Wlanium
 * @license			proprietary
 * @author			Thomas Bartelt
 * Carteasy is a web shop system
 */

include_once('./core/country.class.php');
include_once('./core/customer.class.php');
include_once('./core/customeraddress.class.php');
include_once('./core/shoppingcart.class.php');
include_once('./core/payment_method.class.php');
include_once('./core/deliverer.class.php'); // should be called shipping methods
include_once('./core/order.class.php');
include_once('./core/cs_ticket.class.php');

// 25.08.2026: Ereignisprotokoll in PG -- liefert die Uhrzeiten zu Bestellungen, die
// `orders` nicht hat (alle Datumsfelder dort sind Typ DATE). Faellt still aus, wenn
// Postgres nicht erreichbar ist.
include_once($_SERVER['DOCUMENT_ROOT'].'/core/postgres/shop_events.php');


include_once('./core/orderhelper.class.php');
include_once('./core/giftcertificatehelper.class.php');

class website_cashdesk {

	private $base_object;
	private $layout_object;
	private $errors;
	private $personal_data;
	private $countries;
	private $customer_data;
	private $customer_addresses;
	private $shipping_address;
	private $billing_address;
	private $shoppingcart_data;
	private $shipping_area_id;
	private $payment_methods;
	private $payment_method_id;
	private $shipping_methods;
	private $shipping_method_id;
	private $has_gift_certificate;
	private $gift_certificate_code;
	private $gift_certificate_is_valid;
	private $gift_certificate;
	private $gift_certificate_value;
	private $order_number;
	private $order_id;

	function __construct($base_object, $layout_object) {
		$this->base_object = $base_object;
		$this->layout_object = $layout_object;
		$this->errors = array();
	}

	// end __construct

	public function run() {
		// SUCCESS-Seite nach REDIRECT - verhindert Doppel-Bestellungen
		if (isset($_GET['success']) && $_GET['success'] == '1') {
			// Bestellnummer aus URL für Template verfügbar machen
			if (isset($_GET['order'])) {
				$this->layout_object->assign('order_number', $_GET['order']);
			}
			// Success-Template anzeigen - auch bei Reload!
			return $this->layout_object->_fetch('content_cash_desk/completed.tpl');
		}
		
		// 24.08.2026 -- Zielseite des Post/Redirect/Get aus PaypalPaymentMethod::after_order().
		// Reines GET: hier steht der Link zu PayPal, ein Reload laedt nur noch ihn neu und
		// legt keine zweite Bestellung mehr an.
		// Steht bewusst vor dem Kunden-/Login-Check: nach dem Redirect ist kein
		// ?guest_order=1 mehr in der URL, ein Gast haette hier sonst keine customer_id.
		if (isset($_GET['pp_open'])) {
			$pp_token = trim((string)$_GET['pp_open']);

			if (preg_match('/^EC-[A-Z0-9]{10,30}$/i', $pp_token)) {
				$pp_sandbox = (class_exists('Config') && Config::get_value('paypal_dev_mode') == 1);
				$pp_host    = $pp_sandbox ? 'https://www.sandbox.paypal.com' : 'https://www.paypal.com';

				$this->layout_object->assign('call', 'payment_open');
				$this->layout_object->assign('paypal_link',
					$pp_host.'/cgi-bin/webscr?cmd=_express-checkout&token='.urlencode($pp_token));
			} else {
				$this->layout_object->assign('call', 'payment_error');
				$this->layout_object->assign('message',
					'Der PayPal-Vorgang konnte nicht zugeordnet werden. Ihr Warenkorb ist noch da &ndash; bitte starten Sie die Bestellung neu.');
			}

			return $this->layout_object->_fetch('content_cash_desk/paypal.tpl');
		}

		if (isset($_GET['guest_order']) && $_GET['guest_order'] == 1) {
			// guest order
			$this->base_object->customer->customer_id = $this->base_object->config->shopConfiguration['guest_order_customer_id'];
			$this->layout_object->assign('guest_order', 1);
		}
		$action = '';

		if ($this->base_object->customer->customer_id) {
			if (isset($_POST['cashdesk_action'])) {
				$action = $_POST['cashdesk_action'];
			} else if (isset($_POST['save_address'])) {
				$action = 'save_address';
			} else if (isset($_GET['token'])) {
				$action = 'change_order';
				$param = 'paypal';
			}

			$this->personal_data = $_POST;

			if ($action == 'ready2fly') {
				// MAKE ORDER

				$this->setup_countries();
				$this->setup_customer_data();
				if (isset($_GET['guest_order']) && $_GET['guest_order'] == 1) {
					$this->manage_guest_order_address();
				} else {
					$this->manage_address();
				}
				$this->manage_shoppingcart();
				$this->manage_payment_method();
				$this->manage_shipping_method();
				$this->manage_gift_certificate();
				$this->managa_conditions();

				$this->before_saving_order();


				if (count($this->errors) == 0) {
					if (isset($_GET['guest_order']) && $_GET['guest_order'] == 1) {
						$this->setup_customer_data();
						// check customer already exists by email
						$customer_id = 0;//$this->base_object->customer->check_email($_POST['billing']['email']);

						if (!$customer_id) { 
							// create new customer for guest order
							$customer_data = array (
								'honorific' => $_POST['billing']['honorific'],
								'company' => $_POST['billing']['company'],
								'firstname' => $_POST['billing']['firstname'],
								'surname' => $_POST['billing']['surname'],
								'phone' => $_POST['billing']['phone'],
								'group_id' => $this->base_object->config->shopConfiguration['guest_order_customer_group'],
								'email' => $_POST['billing']['email']
							);
							$result =  $this->base_object->customer->create($customer_data);
						} else {
							$result = $customer_id;
						}

						if ($result) {
							$this->customer_data->id = $customer_id = $this->base_object->customer->customer_id = $result;

							include_once './core/customeraddress.class.php';
							$customer_address_object = new CustomerAddress($this->base_object);
							$billing_address = array (
								'honorific' => $_POST['billing']['honorific'],
								'company' => $_POST['billing']['company'],
								'firstname' => $_POST['billing']['firstname'],
								'surname' => $_POST['billing']['surname'],
								'street' => $_POST['billing']['street'],
								'house_number' => $_POST['billing']['house_number'],
								'city' => $_POST['billing']['city'],
								'zip_code' => $_POST['billing']['zip_code'],
								'country' => $_POST['billing']['country'],
								'customer_id' => $customer_id
							);
							$res = $customer_address_object->create($billing_address);
							$this->billing_address['address'] = $res;
							$shipping_address = array (
								'honorific' => $_POST['shipping']['honorific'],
								'company' => $_POST['shipping']['company'],
								'firstname' => $_POST['shipping']['firstname'],
								'surname' => $_POST['shipping']['surname'],
								'street' => $_POST['shipping']['street'],
								'house_number' => $_POST['shipping']['house_number'],
								'city' => $_POST['shipping']['city'],
								'zip_code' => $_POST['shipping']['zip_code'],
								'country' => $_POST['shipping']['country'],
								'customer_id' => $customer_id
							);

							$res = $customer_address_object->create($shipping_address);
							$this->shipping_address['address'] = $res;

						}
					}

					if (isset($_POST['billing']['email'])) {
						$data = array(
							'id' => $this->base_object->customer->customer_id,
							'email' => $_POST['billing']['email']
						);
						$this->base_object->customer->save($data);
					}

					// 25.08.2026 -- Stufe 4: ein Bestellvorgang, eine Order.
					// Traegt dieser POST einen Nonce, der schon zu einer Bestellung gefuehrt
					// hat, ist es derselbe Vorgang -- egal ob eine Sekunde oder eine Stunde
					// vergangen ist. Dann zurueck auf das Ergebnis von damals, statt ein
					// zweites Mal zu bestellen.
					$erledigt = $this->bestellvorgang_bereits_erledigt();

					if ($erledigt) {
						$offen = isset($_SESSION['easyshop']['paypal_pending'])
						       ? $_SESSION['easyshop']['paypal_pending'] : null;

						// Laeuft zu dieser Order noch ein unbezahlter PayPal-Vorgang,
						// gehoert der Kunde dorthin und nicht auf die Erfolgsseite.
						if ($offen && !empty($offen['token'])
							&& (int)$offen['order_id'] === (int)$erledigt['order_id']
							&& !$this->paypal_order_is_paid($erledigt['order_id'])) {

							error_log('Checkout: Vorgang '.$erledigt['order_number']
							        . ' bereits bestellt, zurueck auf offenen PayPal-Vorgang '
							        . $offen['token']);
							header('Location: /Kasse/?pp_open='.urlencode($offen['token']));
							exit;
						}

						error_log('Checkout: Vorgang bereits bestellt (Order '
						        . $erledigt['order_number'].') -- keine zweite Order angelegt');

						if (function_exists('shop_event')) {
							shop_event('duplicate_blocked', array(
								'order_id'     => $erledigt['order_id'],
								'order_number' => $erledigt['order_number'],
								'betrag'       => $erledigt['total'],
								'detail'       => 'zweiter Bestell-POST desselben Vorgangs'
							));
						}

						header('Location: /Kasse/?success=1&order='.urlencode($erledigt['order_number']));
						exit;
					}

					// 24.08.2026 -- zweiter Riegel gegen Doppelbestellungen bei PayPal.
					// Kommt trotz PRG noch einmal ein ready2fly-POST (Zurueck-Taste,
					// zweiter Tab, ungeduldiges Klicken) und liegt zu dieser Session
					// bereits ein PayPal-Vorgang ueber denselben Betrag offen, der noch
					// nicht bezahlt ist: zurueck auf dessen Link, statt eine zweite Order
					// anzulegen. Ist der Vorgang bezahlt oder aelter als eine Stunde,
					// laeuft alles normal weiter -- dann ist es ein neuer Einkauf.
					$pending = isset($_SESSION['easyshop']['paypal_pending'])
					         ? $_SESSION['easyshop']['paypal_pending'] : null;

					$pending_module = isset($this->payment_methods[$this->payment_method_id]->module)
					                ? strtolower((string)$this->payment_methods[$this->payment_method_id]->module)
					                : '';

					if ($pending && !empty($pending['token'])
						&& $pending_module === 'paypal'
						&& abs(round((float)$this->shoppingcart_data['order_total'], 2) - (float)$pending['total']) < 0.01
						&& (time() - (int)(isset($pending['time']) ? $pending['time'] : 0)) < 3600
						&& !$this->paypal_order_is_paid($pending['order_id'])) {

						error_log("PayPal Fix: doppelter ready2fly-POST abgefangen, zurueck auf offenen Vorgang {$pending['token']}");
						header('Location: /Kasse/?pp_open='.urlencode($pending['token']));
						exit;
					}

					$is_saved = $this->save_order();

					if ($is_saved) {
						return $this->after_saving_order();
					}
				}
			} else if ($action == 'change_order') {
				return $this->change_order($param);
			} else if ($action == 'save_address') {
				// SAVE ADDRESS
				$this->setup_customer_data();
				$this->save_address();

			} else {
				// SHOW ORDER

				$this->setup_countries();
				$this->setup_customer_data();
				if (isset($_GET['guest_order']) && $_GET['guest_order'] == 1) {
					$this->manage_guest_order_address();
				} else {
					$this->manage_address();
				}
				$this->manage_shoppingcart();
				$this->manage_payment_method();
				$this->manage_shipping_method();
				$this->manage_gift_certificate();
				$this->managa_conditions();
			}
			//echo var_dump($this->personal_data);
			$this->manage_errors();
			$this->manage_data_persistence();

			// customer info
			if (isset($_SESSION['customer_info']) && $_SESSION['customer_info']) {
				$this->layout_object->assign('customer_info', $_SESSION['customer_info']);
			}

			if (!$this->base_object->config->shopConfiguration['menu_in_cashdesk']) {
				$this->layout_object->assign('site_type', 'full_width');
			}

			// 25.08.2026: Nonce fuers Kassenformular -- macht einen zweiten Klick auf
			// "Bestellen" als denselben Vorgang erkennbar (siehe save_order()).
			$this->layout_object->assign('checkout_nonce', $this->checkout_nonce_holen());

			return $this->layout_object->_fetch('content_cash_desk.tpl');

		} else if ($_GET['token']) {
			return $this->change_order('paypal');
		} else {
			// login
			$_SESSION['easyshop']['shopAction'] = 'cash_desk_customer_registration';

			$this->layout_object->assign('go_to_cash_desk', 1);
			return $this->layout_object->_fetch('content_login.tpl');
		}
	}

	// end run

	private function setup_countries() {
		$country_object = new Country($this->base_object);

		$this->countries = $country_object->get_all();

		$this->layout_object->assign('countries', $this->countries);
	}

	// end setup_countries

	private function setup_customer_data() {
		$customer_id = $this->base_object->customer->customer_id;

		$customer_object = new Customer($this->base_object);

		$this->customer_data = $customer_object->get_by_id($customer_id);

		// customer data is assigned in manage_address to take care of potential missing default address data

		$this->layout_object->assign('shoppingcartVATUsage', $this->base_object->customer_group->show_tax);
		$this->layout_object->assign('show_tax', $this->base_object->customer_group->show_tax);
		$this->layout_object->assign('customer_data', $this->customer_data);
	}

	// end setup_customer_data

	private function manage_guest_order_address() {
		$address_object = new CustomerAddress($this->base_object);

		$address_object->set_customer_id($this->customer_data->id);
		$this->customer_addresses = $address_object->get_all();

		if (!isset($this->customer_addresses[$this->customer_data->default_address])) {
			$new_default = current($this->customer_addresses);
			$this->customer_data->default_address_country_id = $new_default->country;
			$this->customer_data->default_address_countryname = $this->countries[$new_default->country]->name;
		}

		if (isset($_POST['shipping']) && $_POST['shipping']['address'] == -1) {
			$this->shipping_address = $_POST['billing'];
			$_POST['shipping'] = $_POST['billing'];
		} else if (isset($_POST['shipping'])) {
			if (!$this->shipping_address['country']) {
				$_POST['shipping']['country'] = $this->customer_data->default_address_country_id;
				$this->layout_object->assign('default_address_country_id', $this->customer_data->default_address_country_id);
			}
			$this->shipping_address = $_POST['shipping'];
		} else {
			$this->shipping_address['country'] = $this->customer_data->default_address_country_id;
		}

		$this->layout_object->assign('shipping_address', $this->shipping_address);

		if (isset($_POST['billing'])) {
			$this->billing_address = $_POST['billing'];
		} else {
			$this->billing_address['country'] = $this->customer_data->default_address_country_id;
		}

		$this->layout_object->assign('billing_address', $this->billing_address);

		$this->layout_object->assign('customer', $this->customer_data);
		$shipping_country_id = $this->shipping_address['country'];

		$this->shipping_area_id = Country::getShippingAreaById($shipping_country_id, $this->customer_data->group_id);

		$this->layout_object->assign('addresses', $this->customer_addresses);
	} // end manage_address

	private function manage_address() {
		$address_object = new CustomerAddress($this->base_object);

		$address_object->set_customer_id($this->customer_data->id);
		$this->customer_addresses = $address_object->get_all();


		// hack for missing default address
		if (is_array($this->customer_addresses) && !isset($this->customer_addresses[$this->customer_data->default_address])) {
			$new_default = current($this->customer_addresses);

			$this->customer_data->default_address = $new_default->id;
			$this->customer_data->default_address_company = $new_default->company;
			$this->customer_data->default_address_honorific = $new_default->honorific;
			$this->customer_data->default_address_firstname = $new_default->firstname;
			$this->customer_data->default_address_surname = $new_default->surname;
			$this->customer_data->default_address_street = $new_default->street;
			$this->customer_data->default_address_house_number = $new_default->house_number;
			$this->customer_data->default_address_zip_code = $new_default->zip_code;
			$this->customer_data->default_address_city = $new_default->city;
			$this->customer_data->default_address_country_id = $new_default->country;
			$this->customer_data->default_address_countryname = $this->countries[$new_default->country]->name;
		}

		if (isset($_POST['shipping']['address']) && $_POST['shipping']['address'] == -1) {
			$this->shipping_address = $_POST['billing'];
		} else if (isset($_POST['shipping'])) {
			$this->shipping_address = $_POST['shipping'];
		} else {
			$this->shipping_address['address'] = $this->customer_data->default_address;
			$this->shipping_address['honorific'] = $this->customer_data->default_address_honorific;
			$this->shipping_address['firstname'] = $this->customer_data->default_address_firstname;
			$this->shipping_address['surname'] = $this->customer_data->default_address_surname;
			$this->shipping_address['company'] = $this->customer_data->default_address_company;
			$this->shipping_address['street'] = $this->customer_data->default_address_street;
			$this->shipping_address['house_number'] = $this->customer_data->default_address_house_number;
			$this->shipping_address['zip_code'] = $this->customer_data->default_address_zip_code;
			$this->shipping_address['city'] = $this->customer_data->default_address_city;
			$this->shipping_address['country'] = $this->customer_data->default_address_country_id;
		}

		if (isset($_POST['billing'])) {
			$this->billing_address = $_POST['billing'];
		} else {
			$this->billing_address['address'] = $this->customer_data->default_address;
			$this->billing_address['honorific'] = $this->customer_data->default_address_honorific;
			$this->billing_address['firstname'] = $this->customer_data->default_address_firstname;
			$this->billing_address['surname'] = $this->customer_data->default_address_surname;
			$this->billing_address['company'] = $this->customer_data->default_address_company;
			$this->billing_address['street'] = $this->customer_data->default_address_street;
			$this->billing_address['house_number'] = $this->customer_data->default_address_house_number;
			$this->billing_address['zip_code'] = $this->customer_data->default_address_zip_code;
			$this->billing_address['city'] = $this->customer_data->default_address_city;
			$this->billing_address['country'] = $this->customer_data->default_address_country_id;
		}
		$billing_country_id = $this->billing_address['country'];

		$this->layout_object->assign('customer', $this->customer_data);

		$shipping_country_id = $this->shipping_address['country'];
		$this->shipping_area_id = Country::getShippingAreaById($shipping_country_id, $this->customer_data->group_id);

		$this->layout_object->assign('addresses', $this->customer_addresses);
	}

	// end manage_address

	private function manage_shoppingcart() {
		$shoppingcart_object = new Shoppingcart($this->base_object);
		$this->shoppingcart_data = $shoppingcart_object->get_data();

		// can't show shoppingcart data here, gift certificates can change the data
	}

	// end manage_shoppingcart

	private function manage_payment_method() {
		$payment_method_object = new Payment_method($this->base_object);

		$this->payment_methods = $payment_method_object->getMethodsForGroup($this->customer_data->group_id, $this->shoppingcart_data['price_sum_gross'], $this->shipping_area_id);
		if (isset($_POST['payment_method']) && $_POST['payment_method'] > 0) {
			$this->payment_method_id = $_POST['payment_method'];
		} else {
			//$this->personal_data['payment_method'] = $this->payment_method_id = current($this->payment_methods)->id;
			foreach ($this->payment_methods as $pm) {
				if ($pm->activeType > 0) {
					$this->personal_data['payment_method'] = $this->payment_method_id = $pm->id;
					break;
				}
			}
		}

		$this->layout_object->assign('payment_methods', $this->payment_methods);
	}

	// end manage_payment_method

	private function manage_shipping_method() {
		$shipping_method_object = new Deliverer($this->base_object);

		$shoppingcart_object = new Shoppingcart($this->base_object);
		$this->shoppingcart_data = $shoppingcart_object->get_data();

		$this->shipping_methods = $shipping_method_object->getAllActive(
			$this->shipping_area_id, $this->shoppingcart_data['standard_shipping_items'], $this->shoppingcart_data['bulk_goods'], $this->shoppingcart_data['item_weight'], $this->shoppingcart_data['price_sum_gross']
		);

		if (isset($_POST['shipping_method']) && $_POST['shipping_method'] > 0) {
			foreach ($this->shipping_methods as $sm) {
				if ($sm->id == $_POST['shipping_method']) {
					$this->shipping_method_id = $_POST['shipping_method'];
				}
			}
		}

		if (!$this->shipping_method_id) {
			$methods = $this->shipping_methods;
			$method = array_shift($methods);
			$this->personal_data['shipping_method'] = $this->shipping_method_id = $method->id;
		}
		$this->layout_object->assign('deliverers', $this->shipping_methods);
	}

	// end manage_shipping_method

	private function manage_gift_certificate() {
		$this->shoppingcart_data['order_total'] = $this->shoppingcart_data['price_sum_gross'] + $this->payment_methods[$this->payment_method_id]->paymentAdd + $this->shipping_methods[$this->shipping_method_id]->price_add;

		$this->shoppingcart_data['payment_method_vat'] = $this->payment_methods[$this->payment_method_id]->paymentAddVat;
		$this->shoppingcart_data['shipping_method_vat'] = $this->shipping_methods[$this->shipping_method_id]->price_add_vat;

		if (isset($_POST['giftcertificate']['gift_certificat_code']) && $_POST['giftcertificate']['gift_certificat_code'] != '') {
			$this->has_gift_certificate = true;

			$this->gift_certificate_code = $_POST['giftcertificate']['gift_certificat_code'];
			$this->layout_object->assign('giftcode', $this->gift_certificate_code);
			$this->gift_certificate_is_valid = GiftCertificateHelper::code_is_valide($this->customer_data->id, $this->gift_certificate_code, $this->shoppingcart_data['price_sum_gross']);

			if ($this->gift_certificate_is_valid) {
				$this->shoppingcart_data['gift_certificate_code'] = $this->gift_certificate_code;
				$this->gift_certificate = GiftCertificateHelper::get_certificate_by_code($this->gift_certificate_code);

				$this->gift_certificate_value = GiftCertificateHelper::get_certificate_value($this->gift_certificate_code, $this->shoppingcart_data['price_sum_gross'], $this->customer_data->group_id);

				$this->layout_object->assign('giftcertificatevalue', $this->gift_certificate_value->with_vat);
				$this->layout_object->assign('giftcertificatmessage', "Code akzeptiert.");

				// calculate the part of the gift certificate for each tax rate
				$part = $this->gift_certificate_value->with_vat / $this->shoppingcart_data['price_sum_gross'];
			} else {
				$this->gift_certificate_error = GiftCertificateHelper::get_error_text();

				$this->layout_object->assign('gftcertificateerrormessage', $this->gift_certificate_error);
				$this->layout_object->assign('giftcertificatmessage', 'Code wird nicht akzeptiert.');
			}
		} else {
			$this->has_gift_certificate = false;
		}

		foreach ($this->shoppingcart_data['tax_values'] as $key => $value) {
			$this->shoppingcart_data['tax_values'][$key]['gift']['percent'] = $percent = round(($value['gross'] / $this->shoppingcart_data['price_sum_gross'] * 100), 2);
			$this->shoppingcart_data['tax_values'][$key]['gift']['gross'] = $new_gross = $this->shoppingcart_data['price_sum_gross'] / 100 * $percent;
			$this->shoppingcart_data['tax_values'][$key]['gift']['net'] = $new_net = $new_gross / (100 + $key) * 100;
			$this->shoppingcart_data['tax_values'][$key]['gift']['vat'] = $new_gross - $new_net;
			if ($this->base_object->customer_group->show_tax) {
				$this->shoppingcart_data['tax_values'][$key]['gift']['show'] = $new_gross;
			} else {
				$this->shoppingcart_data['tax_values'][$key]['gift']['show'] = $new_net;
			}
		}

		// TODO: HACK, generalize this
		if (isset($this->payment_methods[9])) {
			if ((isset($this->base_object->config->shopConfiguration['klarna_eid']) &&
				$this->base_object->config->shopConfiguration['klarna_eid'] != '') &&
				(isset($this->base_object->config->shopConfiguration['klarna_secret']) &&
				$this->base_object->config->shopConfiguration['klarna_secret'] != '')) {
				include_once('./core/shop_klarna.class.php');

				// klarna installments
				$klarna_object = new Shop_klarna($this->base_object);
				if ($this->has_gift_certificate && $this->gift_certificate_is_valid) {
					$klarna_installments = $klarna_object->get_installments($this->shoppingcart_data['order_total'] - $this->gift_certificate_value->with_vat);
				} else {
					$klarna_installments = $klarna_object->get_installments($this->shoppingcart_data['order_total']);
				}
				$this->layout_object->assign('klarna_installments', $klarna_installments);
			}
		}

		// since the gift certificate can change the cart data this must be done here 
		$this->layout_object->assign('shoppingcart', $this->shoppingcart_data);
	}

	// end manage_gift_certificate

	private function managa_conditions() {
		$site_content_object = new SiteContent($this->base_object);

		$agb_data = array();
		// Datenschutz: aktuelle Version aus struct 10737 (DSGVO-Update). Alte struct 55 (id 50) ist veraltet.
		$agb_data['datenschutz'] = $site_content_object->get_textbox_data_by_id(10737);
		$agb_data['agbs'] = $site_content_object->get_textbox_data_by_id(56);
		$agb_data['agbs_b2b'] = $site_content_object->get_textbox_data_by_id(10632);
		$agb_data['widerruf'] = $site_content_object->get_textbox_data_by_id(60);

		$this->layout_object->assign('agb_data', $agb_data);
	}

	// end manage_conditions

	private function manage_errors() {
		$this->layout_object->assign('error_message', $this->errors);
	}

	// end manage_errors

	private function manage_data_persistence() {
		// ugly hack for data persistence
		$this->layout_object->assign('personal_data', $this->personal_data);
	}

	// end manage_data_persistence

	private function save_address() {
		$address = $_POST;
		unset($address['save_address']);
		$address_id = false;
		if ($address['address'] != '') {
			$address_id = $address['address'];
		}
		unset($address['address']);
		$address['customer_id'] = $this->customer_data->id;

		$customer_address_object = new CustomerAddress($this->base_object);

		$ret = array();
		if ($customer_address_object->validate($address)) {
			if ($address_id) {
				$customer_address_object->update($address, $address_id);
			} else {
				$address_id = $customer_address_object->create($address);
			}

			$ret['id'] = $address_id;
			$ret['stat'] = 'OK';
		} else {
			$ret['stat'] = 'ERR';
			$ret['data'] = $customer_address_object->get_validation_errors();
		}

		echo json_encode($ret);
		exit();
	}

	// end save_address

	private function before_saving_order() {
		// check order
		if (!isset($_GET['guest_order']) || $_GET['guest_order'] != 1) {
			if (!is_numeric($_POST['billing']['address'])) {
				$this->errors[] = 'Bitte w&auml;hlen Sie eine Rechnungsadresse';
			}

			if (!is_numeric($_POST['shipping']['address'])) {
				$this->errors[] = 'Bitte w&auml;hlen Sie eine Lieferadresse';
			}
		}

		if (!is_numeric($_POST['payment_method'])) {
			$this->errors[] = 'Bitte w&auml;hlen Sie eine Zahlungsart';
		} else {
			$payment_method_id = $_POST['payment_method'];

			if ($this->payment_methods[$payment_method_id]->module != '') {
				$path = $_SERVER['DOCUMENT_ROOT'].'/core/paymentmethods/';
				$module_name = ucfirst($this->payment_methods[$payment_method_id]->module).'PaymentMethod';
				$file_name = strtolower($module_name).'.class.php';

				if (file_exists($path.$file_name)) {
					include_once('./core/paymentmethods/'.$file_name);

					$payment_method_module = new $module_name($this->base_object, $this->layout_object);

					$payment_method_module->set_data($this->customer_data, $this->shipping_address, $this->billing_address, $this->shoppingcart_data, $this->shipping_methods[$this->shipping_method_id], $this->payment_methods[$this->payment_method_id]);

					if ($this->has_gift_certificate && $this->gift_certificate_is_valid) {
						$payment_method_module->set_gift_certificate($this->gift_certificate_value);
					}

					if ($this->payment_methods[$payment_method_id]->argument != '') {
						$return = $payment_method_module->before_order($this->payment_methods[$payment_method_id]->argument);
					} else {
						$return = $payment_method_module->before_order();
					}

					if ($return) {
						$this->errors[] = $return;
					}
				}
			}
		}

		if (!is_numeric($_POST['shipping_method'])) {
			$this->errors[] = 'Bitte w&auml;hlen Sie eine Versandart';
		}

		if (!is_numeric($_POST['agreements_accepted'])) {
			$this->errors[] = 'Bitte akzeptieren Sie unsere Bedingungen';
		}
	}

	// end before_saving_order

	private function save_order() {
		// 25.08.2026 -- FIX 1 ersetzt (Stufe 4).
		//
		// Hier stand eine Duplikatspruefung, die auf
		//     order_date >= DATE_SUB(NOW(), INTERVAL 5 MINUTE)
		// beruhte. `orders.order_date` ist aber Typ DATE, nicht DATETIME -- MySQL macht aus
		// dem Datum '2026-08-25 00:00:00', und damit war die Bedingung fuer den GANZEN TAG
		// wahr statt fuer fuenf Minuten. Wer am selben Tag ein zweites Mal bestellte, bekam
		// seine ERSTE Bestellnummer als "erfolgreich" angezeigt, und der neue Warenkorb
		// wurde nie bestellt. Ein stiller Verlust, der niemandem auffiel.
		//
		// Reparieren liess sich das nicht: die Tabelle `orders` hat ueberhaupt keine Spalte
		// mit Uhrzeit (alle Datumsfelder sind DATE), und `order_history.timestamp` wird bei
		// der Bestellanlage nicht gefuellt. Es gibt also keinen Zeitstempel, auf den man
		// eine Fuenf-Minuten-Regel stuetzen koennte.
		//
		// Statt der Uhr entscheidet jetzt der Vorgang: ein checkout_nonce pro Kassenformular
		// (siehe run() und checkout_nonce_holen()). Wird derselbe Nonce ein zweites Mal
		// abgeschickt, ist es derselbe Bestellvorgang -- unabhaengig davon, wie viel Zeit
		// vergangen ist. Als Netz fuer Absendungen ohne Nonce dient das Zeitfenster in
		// $_SESSION['easyshop']['last_order'], das eine echte Uhrzeit fuehrt.
		//
		// Der Empty-Cart-Schutz weiter unten (FIX 2) bleibt unveraendert.

		// 🚀 FIX 2: Verhindere 0€ Bestellungen ohne Items (Race Condition / Session Loss)
		if (empty($this->shoppingcart_data) ||
			!isset($this->shoppingcart_data['items']) ||
			empty($this->shoppingcart_data['items']) ||
			!isset($this->shoppingcart_data['amount_sum']) ||
			intval($this->shoppingcart_data['amount_sum']) <= 0) {

			error_log("ORDER PREVENTED: Empty cart or 0€ order attempted - Customer: " .
					  ($this->customer_data->id ?? 'unknown') .
					  ", Cart Items: " . (count($this->shoppingcart_data['items'] ?? [])) .
					  ", Amount Sum: " . ($this->shoppingcart_data['amount_sum'] ?? '0'));

			$this->errors[] = 'Ihr Warenkorb ist leer. Bitte fügen Sie Artikel hinzu.';
			return false;
		}

		if ($this->has_gift_certificate && $this->gift_certificate_is_valid) {
			$orderDataObject = OrderHelper::createOrderObject(array(
				'customerId' => $this->customer_data->id,
				'cartId' => session_id(),
				'billingAddressId' => $this->billing_address['address'],
				'shippingAddressId' => $this->shipping_address['address'],
				'paymentMethodId' => $this->payment_method_id,
				'shippingMethodId' => $this->shipping_method_id,
				'giftCertificate' => $this->gift_certificate_code
			), $this->base_object);
		} else {
			$orderDataObject = OrderHelper::createOrderObject(array(
				'customerId' => $this->base_object->customer->customer_id,
				'cartId' => session_id(),
				'billingAddressId' => $this->billing_address['address'],
				'shippingAddressId' => $this->shipping_address['address'],
				'paymentMethodId' => $this->payment_method_id,
				'shippingMethodId' => $this->shipping_method_id
			), $this->base_object);
		}
 
		// TODO : HACK
		// fix up paymemt method with ALL the data
		$orderDataObject->payment->methodId = $this->payment_method_id;
		$orderDataObject->payment->areaId = $this->shipping_area_id;
		$orderDataObject->payment->priceGross = $this->payment_methods[$this->payment_method_id]->paymentAdd;
		$orderDataObject->payment->priceNet = $this->payment_methods[$this->payment_method_id]->paymentAddNet;
		$orderDataObject->payment->priceVat = $this->payment_methods[$this->payment_method_id]->paymentAddVat;
		$orderDataObject->payment->vatRate = '19.00';

		// TODO : HACK
		// fix up shipping method with ALL the data
		$orderDataObject->shipping->methodId = $this->shipping_method_id;
		$orderDataObject->shipping->areaId = $this->shipping_area_id;
		$orderDataObject->shipping->priceGross = $this->shipping_methods[$this->shipping_method_id]->price_add;
		$orderDataObject->shipping->priceNet = $this->shipping_methods[$this->shipping_method_id]->price_add_net;
		$orderDataObject->shipping->priceVat = $this->shipping_methods[$this->shipping_method_id]->price_add_vat;
		$orderDataObject->shipping->vatRate = '19.00';

		if (isset($_POST['customer_info']) && $_POST['customer_info'] != '') {
			$orderDataObject->customer_info = $_POST['customer_info'];
		}

		if ($this->payment_methods[$this->payment_method_id]->module != '') {
			$path = $_SERVER['DOCUMENT_ROOT'].'/core/paymentmethods/';
			$module_name = ucfirst($this->payment_methods[$this->payment_method_id]->module).'PaymentMethod';
			$file_name = strtolower($module_name).'.class.php';

			if (file_exists($path.$file_name)) {
				include_once('./core/paymentmethods/'.$file_name);

				$payment_method_module = new $module_name($this->base_object, $this->layout_object);

				$payment_method_module->set_data($this->customer_data, $this->shipping_address, $this->billing_address, $this->shoppingcart_data, $this->shipping_methods[$this->shipping_method_id], $this->payment_methods[$this->payment_method_id]);

				if ($this->has_gift_certificate && $this->gift_certificate_is_valid) {
					$payment_method_module->set_gift_certificate($this->gift_certificate_value);
				}


				if ($this->payment_methods[$this->payment_method_id]->argument != '') {
					$return = $payment_method_module->during_order($this->payment_methods[$this->payment_method_id]->argument);
				} else {
					$return = $payment_method_module->during_order();
				}

				if ($return) {
					foreach ($return as $key => $value) {
						$orderDataObject->$key = $value;
					}
				}
			}
		}

		$order_object = new Order($this->base_object);
		$this->order_id = $order_object->create($orderDataObject);
		$this->order_number = OrderHelper::get_order_number($this->order_id);

		unset($_SESSION['customer_info']);

		if ($this->order_id) {
			// 24.08.2026: Bei PayPal wandert die Bestellbestaetigung ans Ende des
			// Bezahlvorgangs (PaypalPaymentMethod::bestellbestaetigung_senden). Hier waere
			// sie zu frueh -- die Order existiert an dieser Stelle zwar, aber der Kunde war
			// noch nicht einmal bei PayPal. Beim Testkauf am 24.08. lagen zwischen dieser
			// Mail (23:25:09) und der eingezogenen Zahlung (23:26:45) anderthalb Minuten,
			// und wer gar nicht bezahlt, bekam trotzdem eine Bestaetigung.
			// Alle anderen Zahlarten sind mit dem Abschicken verbindlich -- dort bleibt der
			// Versand genau hier.
			$mail_modul = isset($this->payment_methods[$this->payment_method_id]->module)
			            ? strtolower((string)$this->payment_methods[$this->payment_method_id]->module)
			            : '';

			if ($mail_modul !== 'paypal') {
				// send email
				$ticket_object = new Cs_ticket($this->base_object);
				$ticket_object->event(3, $this->customer_data->id, $this->order_id);
			} else {
				error_log('PayPal Fix: Bestellbestaetigung fuer Order '.$this->order_id
				        . ' zurueckgestellt bis zur eingezogenen Zahlung');
			}

			// EU-RL 2026/2673: elektronischer Widerruf (B2C) – silent solange Flag aus
			try {
				include_once './core/revocation.class.php';
				$revocation_obj = new Revocation($this->base_object);
				$revocation_obj->create_for_order($this->order_id);
			} catch (Throwable $e) {
				error_log('Revocation hook failed for order '.$this->order_id.': '.$e->getMessage());
			}

			if ($this->order_number) {
				// 25.08.2026: Vorgang als erledigt vermerken, damit ein zweiter Klick auf
				// denselben Bestellbutton keine weitere Order erzeugt.
				$this->bestellvorgang_vermerken();

				// Ereignisprotokoll in PG -- der einzige Ort mit einer Uhrzeit zur Bestellung.
				if (function_exists('shop_event')) {
					shop_event('order_created', array(
						'order_id'       => $this->order_id,
						'order_number'   => $this->order_number,
						'payment_method' => $this->payment_method_id,
						'betrag'         => isset($this->shoppingcart_data['order_total'])
						                  ? $this->shoppingcart_data['order_total'] : null,
						'customer_id'    => isset($this->customer_data->id) ? $this->customer_data->id : null,
						'detail'         => $mail_modul === 'paypal'
						                  ? 'PayPal: noch nicht bezahlt' : 'sofort verbindlich'
					));
				}

				return true;
			}
		}

		return false;
	}

	// end save_order

	private function after_saving_order() {
		$this->layout_object->assign('order_number', $this->order_number);
		$this->layout_object->assign('order_amount', $this->shoppingcart_data['order_total']);

		// get trusted shop payment id
		$trusted_shop_payment = 'OTHER';
		if ($this->payment_method_id == 1) {
			$trusted_shop_payment = 'PREPAYMENT';
		} else if ($this->payment_method_id == 2) {
			$trusted_shop_payment = 'CASH_ON_DELIVERY';
		} else if ($this->payment_method_id == 3) {
			$trusted_shop_payment = 'INVOICE';
		} else if ($this->payment_method_id == 4) {
			$trusted_shop_payment = 'PAYPAL';
		} else if ($this->payment_method_id == 6) {
			$trusted_shop_payment = 'DIRECT_DEBIT';
		}
		$this->layout_object->assign('trusted_shop_payment', $trusted_shop_payment);

		// 24.08.2026: Der Warenkorb wird nur noch geleert, wenn die Bestellung mit dieser
		// Antwort wirklich abgeschlossen ist. Bei PayPal faengt das Bezahlen hier erst an
		// -- vorher flog der Korb schon raus, und wer abbrach, neu lud oder zurueckging,
		// stand ohne Warenkorb da ("ORDER PREVENTED: Empty cart"). PayPal leert jetzt
		// selbst, sobald das Geld eingezogen ist (PaypalPaymentMethod::change_order).
		// Bewusst nur PayPal: die anderen Module raeumen nicht selbst auf.
		$payment_module = isset($this->payment_methods[$this->payment_method_id]->module)
		                ? strtolower((string)$this->payment_methods[$this->payment_method_id]->module)
		                : '';

		if ($payment_module !== 'paypal') {
			$shoppingcart_object = new Shoppingcart($this->base_object);
			$shoppingcart_object->clear(1);
		}

		if ($this->payment_methods[$this->payment_method_id]->module != '') {
			$path = $_SERVER['DOCUMENT_ROOT'].'/core/paymentmethods/';
			$module_name = ucfirst($this->payment_methods[$this->payment_method_id]->module).'PaymentMethod';
			$file_name = strtolower($module_name).'.class.php';

			if (file_exists($path.$file_name)) {
				include_once('./core/paymentmethods/'.$file_name);

				$payment_method_module = new $module_name($this->base_object, $this->layout_object);

				$payment_method_module->set_data($this->customer_data, $this->shipping_address, $this->billing_address, $this->shoppingcart_data, $this->shipping_methods[$this->shipping_method_id], $this->payment_methods[$this->payment_method_id], $this->order_id);

				if ($this->has_gift_certificate && $this->gift_certificate_is_valid) {
					$payment_method_module->set_gift_certificate($this->gift_certificate_value);
				}

				return $payment_method_module->after_order($this->shoppingcart_data['order_total']);
			}
		}

		// REDIRECT statt Template - verhindert Doppel-Bestellungen bei F5
		$order_num = $this->order_number ? $this->order_number : 'unbekannt';
		header('Location: /Kasse/?success=1&order=' . urlencode($order_num));
		exit;
	}

	// end after_saving_order

	/**
	 * Nonce fuer das Kassenformular (25.08.2026).
	 *
	 * Ein Wert pro Bestellvorgang, der als hidden field im Formular mitgeht. Nach einer
	 * erfolgreichen Bestellung wird er verbraucht und ein neuer erzeugt -- ein erneut
	 * abgeschickter alter Nonce ist damit erkennbar derselbe Vorgang. Das ersetzt die
	 * Zeitfenster-Pruefung, die auf einer DATE-Spalte nicht funktionieren konnte.
	 *
	 * @return string
	 */
	private function checkout_nonce_holen() {
		if (empty($_SESSION['easyshop']['checkout_nonce'])) {
			if (function_exists('random_bytes')) {
				try {
					$_SESSION['easyshop']['checkout_nonce'] = bin2hex(random_bytes(16));
				} catch (Exception $e) {
					$_SESSION['easyshop']['checkout_nonce'] = md5(uniqid(mt_rand(), true));
				}
			} else {
				$_SESSION['easyshop']['checkout_nonce'] = md5(uniqid(mt_rand(), true));
			}
		}

		return $_SESSION['easyshop']['checkout_nonce'];
	}

	// end checkout_nonce_holen


	/**
	 * Wurde dieser Bestellvorgang schon abgeschlossen? (25.08.2026)
	 *
	 * @return array|false  Daten der bereits angelegten Order, sonst false
	 */
	private function bestellvorgang_bereits_erledigt() {
		$nonce = isset($_POST['checkout_nonce']) ? trim((string)$_POST['checkout_nonce']) : '';

		if ($nonce !== '' && isset($_SESSION['easyshop']['checkout_done'][$nonce])) {
			return $_SESSION['easyshop']['checkout_done'][$nonce];
		}

		// Netz fuer Absendungen ohne Nonce -- alte Seite aus dem Cache, JS abgeschaltet,
		// Formular von Hand nachgebaut. Gleiche Session, gleicher Betrag, innerhalb von
		// fuenf Minuten. Die Uhrzeit kommt aus der Session und ist damit eine echte
		// Uhrzeit, anders als beim alten Guard auf der DATE-Spalte.
		if ($nonce === '' && !empty($_SESSION['easyshop']['last_order'])) {
			$letzte = $_SESSION['easyshop']['last_order'];
			$summe  = round((float)(isset($this->shoppingcart_data['order_total'])
			        ? $this->shoppingcart_data['order_total'] : 0), 2);

			if (abs($summe - (float)$letzte['total']) < 0.01
				&& (time() - (int)$letzte['time']) < 300) {
				return $letzte;
			}
		}

		return false;
	}

	// end bestellvorgang_bereits_erledigt


	/**
	 * Bestellvorgang als erledigt vermerken (25.08.2026).
	 *
	 * Laeuft direkt nach der Order-Anlage. Der verbrauchte Nonce bleibt in der Session
	 * stehen, damit ein spaeter nachgereichter POST mit demselben Wert erkannt wird; fuer
	 * die naechste Bestellung wird beim Rendern des Formulars ein frischer erzeugt.
	 */
	private function bestellvorgang_vermerken() {
		$nonce = isset($_POST['checkout_nonce']) ? trim((string)$_POST['checkout_nonce']) : '';

		$eintrag = array(
			'order_id'     => $this->order_id,
			'order_number' => $this->order_number,
			'total'        => round((float)(isset($this->shoppingcart_data['order_total'])
			                ? $this->shoppingcart_data['order_total'] : 0), 2),
			'time'         => time()
		);

		if ($nonce !== '') {
			if (!isset($_SESSION['easyshop']['checkout_done'])
				|| !is_array($_SESSION['easyshop']['checkout_done'])) {
				$_SESSION['easyshop']['checkout_done'] = array();
			}

			$_SESSION['easyshop']['checkout_done'][$nonce] = $eintrag;

			// Nicht unbegrenzt mitschleppen -- die letzten fuenf reichen.
			if (count($_SESSION['easyshop']['checkout_done']) > 5) {
				$_SESSION['easyshop']['checkout_done'] =
					array_slice($_SESSION['easyshop']['checkout_done'], -5, 5, true);
			}

			unset($_SESSION['easyshop']['checkout_nonce']);
		}

		$_SESSION['easyshop']['last_order'] = $eintrag;
	}

	// end bestellvorgang_vermerken


	/**
	 * Ist zu dieser Order bereits Geld eingezogen? (24.08.2026)
	 *
	 * Entscheidet, ob ein wiederholter Bestell-POST auf den offenen PayPal-Vorgang
	 * zurueckgefuehrt wird oder als neuer Einkauf durchlaeuft.
	 *
	 * @param  int  $order_id
	 * @return bool
	 */
	private function paypal_order_is_paid($order_id) {
		$order_id = (int)$order_id;
		if ($order_id <= 0) {
			return false;
		}

		$result = $this->base_object->db->query("
			SELECT
				paypal_transaction_id
			FROM
				orders
			WHERE
				id = ".$this->base_object->db->real_escape_string($order_id)."
			LIMIT 1
		");

		if ($result && $result->num_rows > 0) {
			$row = $result->fetch_object();
			return !empty($row->paypal_transaction_id);
		}

		// Order nicht gefunden -> nicht blockieren, normal weiterbestellen lassen.
		return false;
	}

	// end paypal_order_is_paid

	private function change_order($param) {
		$path = $_SERVER['DOCUMENT_ROOT'].'/core/paymentmethods/';
		$module_name = ucfirst($param).'PaymentMethod';
		$file_name = strtolower($module_name).'.class.php';

		if (file_exists($path.$file_name)) {
			include_once('./core/paymentmethods/'.$file_name);

			$payment_method_module = new $module_name($this->base_object, $this->layout_object);

			return $payment_method_module->change_order();
		}
	}

	// end change_order

	private function manage_guest_payment_method() {
		$payment_method_object = new Payment_method($this->base_object);
		/* temp: */ $this->shipping_area_id = 1;
		$this->payment_methods = $payment_method_object->getMethodsForGroup($this->base_object->config->shopConfiguration['guest_order_customer_group'], $this->shoppingcart_data['price_sum_gross'], $this->shipping_area_id);
		if (isset($_POST['payment_method']) && $_POST['payment_method'] > 0) {
			$this->payment_method_id = $_POST['payment_method'];
		} else {
			$this->personal_data['payment_method'] = $this->payment_method_id = current($this->payment_methods)->id;
		}

		$this->layout_object->assign('payment_methods', $this->payment_methods);
	}

	// end manage_payment_method

	private function manage_guest_shipping_method() {
		$shipping_method_object = new Deliverer($this->base_object);

		$shoppingcart_object = new Shoppingcart($this->base_object);
		$this->shoppingcart_data = $shoppingcart_object->get_data();
		$this->shipping_methods = $shipping_method_object->getAllActive(
			$this->shipping_area_id, $this->shoppingcart_data['standard_shipping_items'], $this->shoppingcart_data['bulk_goods'], $this->shoppingcart_data['item_weight']
		);

		if (isset($_POST['shipping_method']) && $_POST['shipping_method'] > 0) {
			$this->shipping_method_id = $_POST['shipping_method'];
		} else {
			$this->personal_data['shipping_method'] = $this->shipping_method_id = current($this->shipping_methods)->id;
		}
		$this->layout_object->assign('deliverers', $this->shipping_methods);
	}

// end manage_shipping_method
}

// end website_cashdesk

?>