From 49632cce5a6cc387a727661d890e0e329b212b13 Mon Sep 17 00:00:00 2001
From: ziggie <ziggie1984@protonmail.com>
Date: Thu, 20 Apr 2023 11:30:05 +0200
Subject: [PATCH] lnd: add PrevoutInput Fetcher for SignDesc

Currently chantools crashes when trying to get the force-close
summary because the new btcd version needs a prevoutInput fetcher
otherwise we get a nil error.
---
 lnd/channel.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lnd/channel.go b/lnd/channel.go
index bd06e20..01f538a 100644
--- a/lnd/channel.go
+++ b/lnd/channel.go
@@ -45,6 +45,9 @@ func (lc *LightningChannel) CreateSignDesc() error {
 		},
 		HashType:   txscript.SigHashAll,
 		InputIndex: 0,
+		PrevOutputFetcher: txscript.NewCannedPrevOutputFetcher(
+			fundingPkScript, int64(lc.ChannelState.Capacity),
+		),
 	}
 
 	return nil