From 8a12e2c2c7bd44a4a945fabcbf3b2bb98acc139e Mon Sep 17 00:00:00 2001
From: Czarek Nakamoto <cyjan@mrcyjanek.net>
Date: Fri, 27 Jun 2025 13:40:25 +0200
Subject: [PATCH] feat: legacy crypto-psbt support for seed signer

---
 cw_bitcoin/lib/pending_bitcoin_transaction.dart | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cw_bitcoin/lib/pending_bitcoin_transaction.dart b/cw_bitcoin/lib/pending_bitcoin_transaction.dart
index 7c726944c..e14095bf8 100644
--- a/cw_bitcoin/lib/pending_bitcoin_transaction.dart
+++ b/cw_bitcoin/lib/pending_bitcoin_transaction.dart
@@ -188,12 +188,16 @@ class PendingBitcoinTransaction with PendingTransaction {
     var sourceBytes = unsignedPsbt!;
     var cborEncoder = CBOREncoder();
     cborEncoder.encodeBytes(sourceBytes);
-    var ur = UR("psbt", cborEncoder.getBytes());    
+    var ur = UR("psbt", cborEncoder.getBytes());
+    var urLegacy = UR("crypto-psbt", cborEncoder.getBytes());  
     // var ur = UR("psbt", Uint8List.fromList(List.generate(64*1024, (int x) => x % 256)));    
     var encoded = UREncoder(ur, 120);
+    var encodedLegacy = UREncoder(urLegacy, 120);
     List<String> values = [];
+    List<String> valuesLegacy = [];
     while (!encoded.isComplete) {
       values.add(encoded.nextPart());
+      valuesLegacy.add(encodedLegacy.nextPart());
     }
 
     final bbqrObj = BBQRPsbt.fromUint8List(sourceBytes);
@@ -208,6 +212,7 @@ class PendingBitcoinTransaction with PendingTransaction {
     return Future.value({
       "PSBT (bcur)": values.join("\n"),
       "PSBT (bbqr)": bbqr.join("\n"),
+      "PSBT (bcur legacy)": valuesLegacy.join("\n"),
     });
   }
 }