Magento Fontis Paymate Module Fix for Not Passing Data Issue

<?php
/**
 * Fontis Paymate Extension
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so one can be sent to you a copy immediately.
 *
 * @category   Fontis
 * @package    Fontis_Paymate
 * @author     Lloyd Hazlett
 * @author     Chris Norton
 * @copyright  Copyright (c) 2010 Fontis Pty. Ltd. (http://www.fontis.com.au)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Paymate payment model
 *
 * @category   Fontis
 * @package    Fontis_Australia
 */
class Fontis_Paymate_Model_Paymate extends Mage_Payment_Model_Method_Abstract
{
    const CGI_URL = 'https://www.paymate.com/PayMate/ExpressPayment';
    const CGI_URL_TEST = 'https://www.paymate.com/PayMate/TestExpressPayment';
    const REQUEST_AMOUNT_EDITABLE = 'N';

    protected $_code  = 'paymate';
    protected $_formBlockType = 'fontis_paymate_block_form';
    protected $_allowCurrencyCode = array('AUD', 'EUR', 'GBP', 'NZD', 'USD');
   
    protected $_isGateway               = false;
    protected $_canAuthorize            = false;
    protected $_canCapture              = true;
    protected $_canCapturePartial       = false;
    protected $_canRefund               = false;
    protected $_canVoid                 = false;
    protected $_canUseInternal          = false;
    protected $_canUseCheckout          = true;
    protected $_canUseForMultishipping  = false;
   
    /**
     * Assign data to info model instance
     *
     * @param   mixed $data
     * @return  Fontis_Australia_Model_Payment_Paymate
     */
    public function assignData($data)
    {
        $details = array();
        if ($this->getUsername())
        {
            $details['username'] = $this->getUsername();
        }
        if (!empty($details))
        {
            $this->getInfoInstance()->setAdditionalData(serialize($details));
        }
        return $this;
    }

    public function getUsername()
    {
        return $this->getConfigData('username');
    }
   
    public function getUrl()
    {
        $url = $this->getConfigData('cgi_url');
       
        if(!$url)
        {
            $url = self::CGI_URL_TEST;
        }
       
        return $url;
    }
   
    /**
     * Get session namespace
     *
     * @return Fontis_Australia_Model_Payment_Paymate_Session
     */
    public function getSession()
    {
        return Mage::getSingleton('paymate/paymate_session');
    }

    /**
     * Get checkout session namespace
     *
     * @return Mage_Checkout_Model_Session
     */
    public function getCheckout()
    {
        return Mage::getSingleton('checkout/session');
    }

    /**
     * Get current quote
     *
     * @return Mage_Sales_Model_Quote
     */
    public function getQuote()
    {
        return $this->getCheckout()->getQuote();
    }

    public function getCheckoutFormFields()
    {
        $orderIncrementId = $this->getCheckout()->getLastRealOrderId();
            $order = Mage::getModel('sales/order')->loadByIncrementId($orderIncrementId);
           
        $a = $order->getShippingAddress();
        $b = $order->getBillingAddress();
        $currency_code = $order->getCurrencyCode();
        //$cost = $order->getSubtotal() - $order->getDiscountAmount();
        $cost = $order->getGrandTotal();
        //$shipping = $order->getShippingAmount();

        //$_shippingTax = $order->getShippingAddress()->getTaxAmount();
        //$_billingTax = $order->getBillingAddress()->getTaxAmount();
       
        //$tax = sprintf('%.2f', $_shippingTax + $_billingTax);
        //$cost = sprintf('%.2f', $cost + $tax);
       
        $fields = array(
            'mid'                   => $this->getUsername(),
            'amt'                   => sprintf('%.2f', $cost + $shipping),
            'amt_editable'          => self::REQUEST_AMOUNT_EDITABLE,
            'currency'              => $currency_code,
            'ref'                   => $orderIncrementId,
            'pmt_sender_email'      => $b->getEmail(),
            'pmt_contact_firstname' => $b->getFirstname(),
            'pmt_contact_surname'   => $b->getLastname(),
            'pmt_contact_phone'     => $b->getTelephone(),
            'pmt_country'           => $b->getCountry(),
            'regindi_address1'      => $b->getStreet(1),
            'regindi_address2'      => $b->getStreet(2),
            'regindi_sub'           => $b->getCity(),
            'regindi_state'         => $b->getRegion(),     // Returns full state name
            'regindi_pcode'         => $b->getPostcode(),
            'return'                => Mage::getUrl('paymate/paymate/complete'),
            'popup'                 => 'N',
        );

        // Run through fields and replace any occurrences of & with the word
        // 'and', as having an ampersand present will conflict with the HTTP
        // request.
        $filtered_fields = array();
        foreach ($fields as $k=>$v) {
            $value = str_replace("&","and",$v);
            $filtered_fields[$k] =  $value;
        }
       
        return $filtered_fields;
    }

    public function createFormBlock($name)
    {
        $block = $this->getLayout()->createBlock('paymate/paymate_form', $name)
            ->setMethod('paymate')
            ->setPayment($this->getPayment())
            ->setTemplate('fontis/paymate/form.phtml');

        return $block;
    }

    /*validate the currency code is avaialable to use for paypal or not*/
    public function validate()
    {
        parent::validate();
        $currency_code = $this->getQuote()->getBaseCurrencyCode();
        if (!in_array($currency_code,$this->_allowCurrencyCode)) {
            Mage::throwException(Mage::helper('paymate')->__('Selected currency code ('.$currency_code.') is not compatabile with Paymate'));
        }
        return $this;
    }

    public function onOrderValidate(Mage_Sales_Model_Order_Payment $payment)
    {
       return $this;
    }

    public function onInvoiceCreate(Mage_Sales_Model_Invoice_Payment $payment)
    {

    }

    public function canCapture()
    {
        return true;
    }

    public function getOrderPlaceRedirectUrl()
    {
          return Mage::getUrl('paymate/paymate/redirect');
    }
}