for (res, path) in results.iter().zip(route.paths.iter()) {
if res.is_ok() {
has_ok = true;
total_ok_fees_msat += path.fee_msat();
for (res, path) in results.iter().zip(route.paths.iter()) {
if res.is_ok() {
has_ok = true;
total_ok_fees_msat += path.fee_msat();
if let Some(route_params) = &route.route_params {
let mut route_params = route_params.clone();
// We calculate the leftover fee budget we're allowed to spend by
// subtracting the used fee from the total fee budget.
route_params.max_total_routing_fee_msat = route_params
.max_total_routing_fee_msat.map(|m| m.saturating_sub(total_ok_fees_msat));
if let Some(route_params) = &route.route_params {
let mut route_params = route_params.clone();
// We calculate the leftover fee budget we're allowed to spend by
// subtracting the used fee from the total fee budget.
route_params.max_total_routing_fee_msat = route_params
.max_total_routing_fee_msat.map(|m| m.saturating_sub(total_ok_fees_msat));