public function wpr_decrease_balance($giftCard_id)
 {
     $newBalance = wpr_get_giftcard_balance($giftCard_id) - $this->wpr_get_payment_amount();
     wpr_set_giftcard_balance($giftCard_id, $newBalance);
     // Check if the gift card ballance is 0 and if it is change the post status to zerobalance
     if (wpr_get_giftcard_balance($giftCard_id) == 0) {
         wpr_update_giftcard_status($giftCard_id, 'zerobalance');
     }
 }
/**
 * Updates the Gift Card and the order information when the order is processed
 *
 */
function rpgc_update_card($order_id)
{
    global $woocommerce;
    $giftCard_id = WC()->session->giftcard_post;
    if ($giftCard_id != '') {
        $newBalance = wpr_get_giftcard_balance($giftCard_id) - WC()->session->giftcard_payment;
        // Check if the gift card ballance is 0 and if it is change the post status to zerobalance
        if (wpr_get_giftcard_balance($giftCard_id) == 0) {
            wpr_update_giftcard_status($giftCard_id, 'zerobalance');
        }
        $giftCard_IDs = get_post_meta($giftCard_id, 'wpr_existingOrders_id', true);
        $giftCard_IDs[] = $order_id;
        update_post_meta($giftCard_id, 'rpgc_balance', $newBalance);
        // Update balance of Giftcard
        update_post_meta($giftCard_id, 'wpr_existingOrders_id', $giftCard_IDs);
        // Saves order id to gifctard post
        update_post_meta($order_id, 'rpgc_id', $giftCard_id);
        update_post_meta($order_id, 'rpgc_payment', WC()->session->giftcard_payment);
        update_post_meta($order_id, 'rpgc_balance', $newBalance);
        WC()->session->idForEmail = $order_id;
        unset(WC()->session->giftcard_payment, WC()->session->giftcard_post);
    }
    if (isset(WC()->session->giftcard_data)) {
        update_post_meta($order_id, 'rpgc_data', WC()->session->giftcard_data);
        unset(WC()->session->giftcard_data);
    }
}