/**
* Force a page refresh when an order is updated to have a zero total and we're not using the "login app" mode.
*
* This ensures that the standard WC checkout form is rendered.
*/
public function force_standard_mode_refresh_with_zero_order_total($cart)
{
// Avoid constant reload loop in the event we've forced a checkout refresh
if (!is_ajax()) {
unset(WC()->session->reload_checkout);
}
// Login app mode can handle zero-total orders
if ('yes' === $this->settings['enable_login_app']) {
return;
}
if (!$this->gateway->is_available()) {
return;
}
// Get the previous cart total
$previous_total = WC()->session->wc_amazon_previous_total;
// Store the current total
WC()->session->wc_amazon_previous_total = $cart->total;
// If the total is non-zero, and we don't know what the previous total was, bail.
if (is_null($previous_total) || $cart->needs_payment()) {
return;
}
// This *wasn't* as zero-total order, but is now
if ($previous_total > 0) {
// Force reload, re-rendering standard WC checkout form
WC()->session->reload_checkout = true;
}
}
/**
* Enforce: "Amazon imposes a $500 per calendar month limit on the amount of funds you can charge a buyer."
* See: https://payments.amazon.com/documentation/automatic/201752090#201757640
*
* @return bool
*/
function is_available()
{
$is_available = parent::is_available();
if ($is_available && WC_Subscriptions_Cart::cart_contains_subscription()) {
$potential_monthly_max = $this->calculate_potential_monthly_maximum_payment_in_cart();
if ($potential_monthly_max > 500) {
return false;
}
}
return $is_available;
}
