function setup_checkout(ET_Order $order)
{
$order = clone $order;
$order = $order->generate_data_to_pay();
$setting = $this->_settings;
$payment = new ET_GoogleCheckout();
$currencyCodeType = isset($order['currencyCodeType']) ? $order['currencyCodeType'] : '';
$pro = isset($order['products']) ? $order['products'] : array();
$products = "";
$itemamt = 0.0;
$i = 0;
if (isset($order['total_before_discount']) && $order['total_before_discount'] > $order['total']) {
$pro[] = array('NAME' => __("Discount", ET_DOMAIN), 'L_DESC' => __("You have use a coupon code to get discount", ET_DOMAIN), 'AMT' => $order['total'] - $order['total_before_discount'], 'QTY' => 1);
}
// set digital url
$key = $payment->get_digital_key($order['ID']);
$url = $setting['return'];
$returnURL = $url . '&token=' . $key;
// general product string add to paypal url
if (!empty($pro)) {
$xml_data = new gc_XmlBuilder();
$xml_data->Push('checkout-shopping-cart', array('xmlns' => GOOGLE_SCHEMA_URL));
$xml_data->Push('shopping-cart');
$xml_data->Push('items');
foreach ($pro as $key => $value) {
$xml_data->Push('item');
$xml_data->Element('item-name', $value['NAME']);
$xml_data->Element('item-description', $value['L_DESC']);
$xml_data->Element('unit-price', $value['AMT'], array('currency' => $order['currencyCodeType']));
$xml_data->Element('quantity', $value['QTY']);
$xml_data->Push('digital-content');
// digital url
$xml_data->Element('url', $returnURL);
// description when order success
$xml_data->element('description', substr('You have completed order!', 0, 40));
$xml_data->Pop('digital-content');
$xml_data->Pop('item');
}
$xml_data->Pop('items');
}
$xml_data->Pop('shopping-cart');
$xml_data->Push('checkout-flow-support');
$xml_data->Push('merchant-checkout-flow-support');
$xml_data->Element('continue-shopping-url', $setting['continue_shop']);
$xml_data->Pop('merchant-checkout-flow-support');
$xml_data->Pop('checkout-flow-support');
$xml_data->Pop('checkout-shopping-cart');
$nvpstr = $xml_data->GetXML();
$data = $payment->set_checkout($nvpstr);
return array('ACK' => true, 'url' => $data['url'], 'extend' => $data);
}