From 403e978375f8324351b6f13455beb485eca13244 Mon Sep 17 00:00:00 2001
From: freehere107 <freehere107@gmail.com>
Date: Wed, 6 Nov 2024 18:17:39 +0800
Subject: [PATCH] Fix extrinsic tip before metadata v14

---
 extrinsic.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/extrinsic.go b/extrinsic.go
index 14f4353..63ef151 100644
--- a/extrinsic.go
+++ b/extrinsic.go
@@ -142,7 +142,11 @@ func (e *ExtrinsicDecoder) Process() {
 			}
 			e.Era = e.ProcessAndUpdateData("EraExtrinsic").(string)
 			e.Nonce = int(e.ProcessAndUpdateData("Compact<U64>").(uint64))
-			if e.Metadata.Extrinsic == nil {
+			if e.Metadata.Extrinsic != nil {
+				if e.Metadata.MetadataVersion < 14 && utiles.SliceIndex("ChargeTransactionPayment", e.Metadata.Extrinsic.SignedIdentifier) != -1 {
+					result.Tip = utiles.DecimalFromInterface(e.ProcessAndUpdateData("Compact<Balance>"))
+				}
+			} else {
 				result.Tip = utiles.DecimalFromInterface(e.ProcessAndUpdateData("Compact<Balance>"))
 			}
 			// spec SignedExtensions