fix: do not compare objects, compare tx reference (#170)

butaneprotocol · Sep 13, 2024 · bdf17aa · bdf17aa
1 parent 73e34a6
commit bdf17aa
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diff --git a/.changeset/hot-teachers-wash.md b/.changeset/hot-teachers-wash.md
@@ -0,0 +1,5 @@
+---
+"@blaze-cardano/tx": patch
+---
+
+Fix utxo comparison from object comparison to comparing the output reference manually
diff --git a/packages/blaze-tx/src/tx.ts b/packages/blaze-tx/src/tx.ts
@@ -1215,7 +1215,12 @@ export class TxBuilder {
     } else {
       // If no provided collateral inputs, iterate over the inputs to find the best candidate.
       for (const input of inputs) {
-        const utxo = scope.find((x) => x.input() == input);
+        const utxo = scope.find(
+          (x) =>
+            x.input().transactionId() === input.transactionId() &&
+            x.input().index() === input.index(),
+        );
+
         if (utxo) {
           // Check if the UTXO amount is sufficient for collateral.
           if (
@@ -1398,7 +1403,11 @@ export class TxBuilder {
       .collateral()!
       .values()
       .reduce((acc, input) => {
-        const utxo = scope.find((x) => x.input() == input);
+        const utxo = scope.find(
+          (x) =>
+            x.input().transactionId() === input.transactionId() &&
+            x.input().index() === input.index(),
+        );
         if (!utxo) {
           throw new Error(
             "balanceCollateralChange: Could not resolve some collateral input",