How do you retrieve settings for a custom payment gateway?

[mediagiantdesign]

Hello,

Im implmenting a custom Free Trial payment gateway leveraging the example code for payment gateways from GITHUB. Everything works great, but I need to retrieve settings from the payment gateways settings when the viewcart hook fires. I have the code and logic in place, and a basic conditional working, but for it to work to spec, I need to pull back a custom fields called promocodes from the payment gateways config. How do I do this?

//hook to only allow the free trial to show if one of the allowed promo codes have been entered
function filter_freetrial_gateway($vars)
{
    logModuleCall("FREETRIAL", "REMOVE FREE", $vars['gateways'], $vars['gateways'], $vars);

//retrieve the payment gateways settinsg for freetrial and process into array

    //check if the promo code exists in the allowed array - to be implemented
    if (($vars['templatefile']=='viewcart') && ($vars['promotioncode'] != "SEOTRIAL30")){

        // List of gateways to remove
        $disallowed = array('freetrial');

        $gateways = $vars['gateways'];
        
        foreach ($gateways as $k => $item) {
            if (in_array($item['sysname'],$disallowed)) {
                unset($gateways[$k]);
            }
        } 
        return array("gateways" => $gateways);
    }
}
add_hook("ClientAreaPageCart", 1, "filter_freetrial_gateway");

I borrowed the basis of this code from another post here on the community. Just trying to get the last piece in place.

 

Thanks in advance for the assistance.

 

[mediagiantdesign]

Anyone?