From ff8fd0af73112a23176758c59972f22d42c883f9 Mon Sep 17 00:00:00 2001
From: "Joshua Marchand (JSHy)" <79121297+yHSJ@users.noreply.github.com>
Date: Wed, 11 Sep 2024 12:05:03 -0400
Subject: [PATCH] fix: add collateralUtxos to scope when searching for utxos to
 balance collateral change (#165)

---
 .changeset/late-geese-tie.md | 5 +++++
 packages/blaze-tx/src/tx.ts  | 5 ++++-
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/late-geese-tie.md

diff --git a/.changeset/late-geese-tie.md b/.changeset/late-geese-tie.md
new file mode 100644
index 00000000..b596e3d5
--- /dev/null
+++ b/.changeset/late-geese-tie.md
@@ -0,0 +1,5 @@
+---
+"@blaze-cardano/tx": patch
+---
+
+search collateralUtxos when balancing collateral change
diff --git a/packages/blaze-tx/src/tx.ts b/packages/blaze-tx/src/tx.ts
index 3a4e1684..9f0e87a0 100644
--- a/packages/blaze-tx/src/tx.ts
+++ b/packages/blaze-tx/src/tx.ts
@@ -1334,7 +1334,10 @@ export class TxBuilder {
       return;
     }
     // Retrieve available UTXOs within scope.
-    const scope = [...this.utxoScope.values()];
+    const scope = [
+      ...this.utxoScope.values(),
+      ...this.collateralUtxos.values(),
+    ];
     // Calculate the total collateral based on the transaction fee and collateral percentage.
     const totalCollateral = BigInt(
       Math.ceil(