From 335b8608ae8f5b49439f40c9da9c969f2bacce13 Mon Sep 17 00:00:00 2001
From: anastasiarods <rodionova.anastasia@proton.me>
Date: Sat, 7 Dec 2024 19:40:56 +0700
Subject: [PATCH] Fix ts error for 0x interpreter (#172)

---
 .changeset/clean-beans-whisper.md                       | 5 +++++
 packages/transaction-interpreter/interpreters/zeroEx.ts | 9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/clean-beans-whisper.md

diff --git a/.changeset/clean-beans-whisper.md b/.changeset/clean-beans-whisper.md
new file mode 100644
index 0000000..f8564b2
--- /dev/null
+++ b/.changeset/clean-beans-whisper.md
@@ -0,0 +1,5 @@
+---
+'@3loop/transaction-interpreter': patch
+---
+
+Fix ts error for 0x interpreter
diff --git a/packages/transaction-interpreter/interpreters/zeroEx.ts b/packages/transaction-interpreter/interpreters/zeroEx.ts
index fee6830..c06776e 100644
--- a/packages/transaction-interpreter/interpreters/zeroEx.ts
+++ b/packages/transaction-interpreter/interpreters/zeroEx.ts
@@ -8,7 +8,12 @@ export function transformEvent(event: DecodedTransaction): InterpretedTransactio
 
   if (!swapEvent || newEvent.type !== 'unknown') return newEvent
 
-  const { recipient } = swapEvent.event?.params as { recipient: string }
+  const params = swapEvent.event?.params as { recipient?: string } | undefined
+  const recipient = params?.recipient || event.fromAddress
+
+  const buyToken = event.methodCall?.params?.[0]?.components?.find((c) => c.name === 'buyToken') as
+    | { value: string }
+    | undefined
 
   const netSent = getNetTransfers({
     transfers: event.transfers,
@@ -17,7 +22,7 @@ export function transformEvent(event: DecodedTransaction): InterpretedTransactio
   })
 
   const netReceived = getNetTransfers({
-    transfers: event.transfers,
+    transfers: buyToken ? event.transfers.filter((t) => t.address === buyToken.value) : event.transfers,
     toAddresses: [recipient],
     type: ['ERC20', 'native'],
   })