From 7ca0a23c66384315717f09248a68953cfc1496bf Mon Sep 17 00:00:00 2001
From: Enzo Cioppettini <48031343+ecioppettini@users.noreply.github.com>
Date: Fri, 15 Dec 2023 20:47:10 -0300
Subject: [PATCH] cardano-presync: avoid error when there was no previous sync
 started (#271)

* cardano-presync: avoid error when there was no previous sync started

* fix if condition
---
 packages/engine/paima-runtime/src/runtime-loops.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/packages/engine/paima-runtime/src/runtime-loops.ts b/packages/engine/paima-runtime/src/runtime-loops.ts
index 39c297779..7de996a30 100644
--- a/packages/engine/paima-runtime/src/runtime-loops.ts
+++ b/packages/engine/paima-runtime/src/runtime-loops.ts
@@ -62,10 +62,14 @@ async function runPresync(
     startBlockHeight
   );
 
-  if (!ENV.CARP_URL && presyncBlockHeight[Network.CARDANO]) {
-    throw new Error(
-      '[paima-runtime] Detected Cardano CDE sync in progress, but CARP_URL is not set.'
-    );
+  if (!ENV.CARP_URL) {
+    if (presyncBlockHeight[Network.CARDANO] === -1) {
+      delete presyncBlockHeight[Network.CARDANO];
+    } else {
+      throw new Error(
+        '[paima-runtime] Detected Cardano CDE sync in progress, but CARP_URL is not set.'
+      );
+    }
   }
 
   if (run) {