<?php
/**
 * checkout_payment header_php.php
 *
 * @package page
 * @copyright Copyright 2003-2006 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: header_php.php 3202 2006-03-18 12:13:13Z wilt $
 */

// This should be first line of the script:
$zco_notifier->notify('NOTIFY_HEADER_START_CHECKOUT_PAYMENT');

// if there is nothing in the customers cart, redirect them to the shopping cart page
if ($_SESSION['cart']->count_contents() <= 0) {
    zen_redirect(zen_href_link(FILENAME_TIME_OUT));
}

// if the customer is not logged on, redirect them to the login page
if (!$_SESSION['customer_id']) {
  $_SESSION['navigation']->set_snapshot();
  zen_redirect(zen_href_link(FILENAME_LOGIN, '', 'SSL'));
} else {
  // validate customer
  if (zen_get_customer_validate_session($_SESSION['customer_id']) == false) {
    $_SESSION['navigation']->set_snapshot();
    zen_redirect(zen_href_link(FILENAME_LOGIN, '', 'SSL'));
  }
}

// if no shipping method has been selected, redirect the customer to the shipping method selection page
if (!$_SESSION['shipping']) {
  zen_redirect(zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'));
}

// avoid hack attempts during the checkout procedure by checking the internal cartID
if (isset($_SESSION['cart']->cartID) && $_SESSION['cartID']) {
  if ($_SESSION['cart']->cartID != $_SESSION['cartID']) {
    zen_redirect(zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'));
  }
}

// Stock Check
if ( (STOCK_CHECK == 'true') && (STOCK_ALLOW_CHECKOUT != 'true') ) {
  $products = $_SESSION['cart']->get_products();
  for ($i=0, $n=sizeof($products); $i<$n; $i++) {
    if (zen_check_stock($products[$i]['id'], $products[$i]['quantity'])) {
      zen_redirect(zen_href_link(FILENAME_SHOPPING_CART));
      break;
    }
  }
}

// get coupon code
if ($_SESSION['cc_id']) {
  $discount_coupon_query = "SELECT coupon_code
                            FROM " . TABLE_COUPONS . "
                            WHERE coupon_id = :couponID";

  $discount_coupon_query = $db->bindVars($discount_coupon_query, ':couponID', $_SESSION['cc_id'], 'integer');
  $discount_coupon = $db->Execute($discount_coupon_query);
}

// if no billing destination address was selected, use the customers own address as default
if (!$_SESSION['billto']) {
  $_SESSION['billto'] = $_SESSION['customer_default_address_id'];
} else {
  // verify the selected billing address
  $check_address_query = "SELECT count(*) AS total FROM " . TABLE_ADDRESS_BOOK . "
                          WHERE customers_id = :customersID 
                          AND address_book_id = :addressBookID";

  $check_address_query = $db->bindVars($check_address_query, ':customersID', $_SESSION['customer_id'], 'integer');
  $check_address_query = $db->bindVars($check_address_query, ':addressBookID', $_SESSION['billto'], 'integer');
  $check_address = $db->Execute($check_address_query);

  if ($check_address->fields['total'] != '1') {
    $_SESSION['billto'] = $_SESSION['customer_default_address_id'];
    $_SESSION['payment'] = '';
  }
}

require(DIR_WS_CLASSES . 'order.php');
$order = new order;
require(DIR_WS_CLASSES . 'order_total.php');
$order_total_modules = new order_total;
$order_total_modules->collect_posts();
$order_total_modules->pre_confirmation_check();

//  $_SESSION['comments'] = '';
$comments = $_SESSION['comments'];

$total_weight = $_SESSION['cart']->show_weight();
$total_count = $_SESSION['cart']->count_contents();

// load all enabled payment modules
require(DIR_WS_CLASSES . 'payment.php');
$payment_modules = new payment;

// Load the selected shipping module(needed to calculate tax correctly)
require(DIR_WS_CLASSES . 'shipping.php');
$shipping_modules = new shipping($_SESSION['shipping']);

require(DIR_WS_MODULES . zen_get_module_directory('require_languages.php'));

if (isset($_GET['payment_error']) && is_object(${$_GET['payment_error']}) && ($error = ${$_GET['payment_error']}->get_error())) {
  $messageStack->add('checkout_payment', $error['error'], 'error');
}

$breadcrumb->add(NAVBAR_TITLE_1, zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'));
$breadcrumb->add(NAVBAR_TITLE_2);

// This should be last line of the script:
$zco_notifier->notify('NOTIFY_HEADER_END_CHECKOUT_PAYMENT');
?>
