DirectedChannelInfo to PaymentRelay mapping

Author: jkczyz

lightning/src/blinded_path/payment.rs

@@ -13,6 +13,7 @@ use crate::ln::features::BlindedHopFeatures;
 use crate::ln::msgs::DecodeError;
 use crate::offers::invoice::BlindedPayInfo;
 use crate::prelude::*;
+use crate::routing::gossip::DirectedChannelInfo;
 use crate::util::ser::{Readable, Writeable, Writer};
 
 use core::convert::TryFrom;
@@ -106,6 +107,17 @@ impl From<CounterpartyForwardingInfo> for PaymentRelay {
 	}
 }
 
+impl<'a> From<DirectedChannelInfo<'a>> for PaymentRelay {
+	fn from(info: DirectedChannelInfo<'a>) -> Self {
+		let direction = info.direction();
+		Self {
+			cltv_expiry_delta: direction.cltv_expiry_delta,
+			fee_proportional_millionths: direction.fees.proportional_millionths,
+			fee_base_msat: direction.fees.base_msat,
+		}
+	}
+}
+
 impl Writeable for ForwardTlvs {
 	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
 		encode_tlv_stream!(w, {

lightning/src/routing/gossip.rs

@@ -1026,7 +1026,7 @@ impl<'a> DirectedChannelInfo<'a> {
 
 	/// Returns information for the direction.
 	#[inline]
-	pub(super) fn direction(&self) -> &'a ChannelUpdateInfo { self.direction }
+	pub(crate) fn direction(&self) -> &'a ChannelUpdateInfo { self.direction }
 
 	/// Returns the `node_id` of the source hop.
 	///