From 00f578adee31e519a977a6b7c980dc4362eae9f9 Mon Sep 17 00:00:00 2001
From: benthecarman <benthecarman@live.com>
Date: Sun, 3 Dec 2023 12:42:17 -0600
Subject: [PATCH] Add helper function for getting preimage from PaymentPurpose

---
 lightning/src/events/mod.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lightning/src/events/mod.rs b/lightning/src/events/mod.rs
index adbc7faf7..4e04a3634 100644
--- a/lightning/src/events/mod.rs
+++ b/lightning/src/events/mod.rs
@@ -72,6 +72,16 @@ pub enum PaymentPurpose {
 	SpontaneousPayment(PaymentPreimage),
 }
 
+impl PaymentPurpose {
+	/// Returns the preimage for this payment, if it is known.
+	pub fn preimage(&self) -> Option<PaymentPreimage> {
+		match self {
+			PaymentPurpose::InvoicePayment { payment_preimage, .. } => *payment_preimage,
+			PaymentPurpose::SpontaneousPayment(preimage) => Some(*preimage),
+		}
+	}
+}
+
 impl_writeable_tlv_based_enum!(PaymentPurpose,
 	(0, InvoicePayment) => {
 		(0, payment_preimage, option),
-- 
2.39.5