From 28d540d5f12dc4a758cd8fb7775f3591aaa406f0 Mon Sep 17 00:00:00 2001
From: cyan <cyjan@mrcyjanek.net>
Date: Wed, 23 Sep 2026 19:10:52 +0200
Subject: [PATCH] feat: warn when txCount != 1 (#3644)

---
 cw_monero/lib/api/structs/pending_transaction.dart | 4 +++-
 cw_monero/lib/api/transaction_history.dart         | 2 ++
 cw_monero/lib/monero_wallet.dart                   | 5 ++++-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/cw_monero/lib/api/structs/pending_transaction.dart b/cw_monero/lib/api/structs/pending_transaction.dart
index db11c4f78..0934d0d19 100644
--- a/cw_monero/lib/api/structs/pending_transaction.dart
+++ b/cw_monero/lib/api/structs/pending_transaction.dart
@@ -4,11 +4,13 @@ class PendingTransactionDescription {
       required this.fee,
       required this.hash,
       required this.hex,
-      required this.pointerAddress});
+      required this.pointerAddress,
+      required this.txCount});
 
   final int amount;
   final int fee;
   final String hash;
   final String hex;
   final int pointerAddress;
+  final int txCount;
 }
diff --git a/cw_monero/lib/api/transaction_history.dart b/cw_monero/lib/api/transaction_history.dart
index 7c4ffc36e..dc8bc5273 100644
--- a/cw_monero/lib/api/transaction_history.dart
+++ b/cw_monero/lib/api/transaction_history.dart
@@ -219,6 +219,7 @@ Future<PendingTransactionDescription> createTransactionSync(
     fee: rFee,
     hash: rHash,
     hex: rHex,
+    txCount: pendingTx.txCount(),
     pointerAddress: pendingTx.ffiAddress(),
   );
 }
@@ -263,6 +264,7 @@ Future<PendingTransactionDescription> createTransactionMultDest(
     hash: tx.txid(''),
     hex: tx.hex(''),
     pointerAddress: tx.ffiAddress(),
+    txCount: tx.txCount(),
   );
 }
 
diff --git a/cw_monero/lib/monero_wallet.dart b/cw_monero/lib/monero_wallet.dart
index 2d932524a..fd86e82b2 100644
--- a/cw_monero/lib/monero_wallet.dart
+++ b/cw_monero/lib/monero_wallet.dart
@@ -491,7 +491,10 @@ abstract class MoneroWalletBase
           paymentId: '');
     }
 
-    // final status = monero.PendingTransaction_status(pendingTransactionDescription);
+    if (pendingTransactionDescription.txCount != 1) {
+      throw MoneroTransactionCreationException(
+          "This payment would be split into ${pendingTransactionDescription.txCount} transactions. Send smaller transaction to yourself first.",);
+    }
 
     return PendingMoneroTransaction(pendingTransactionDescription, this);
   }