From 4dc4353885bf1e7fc3fcbece3ef84f20764104f3 Mon Sep 17 00:00:00 2001
From: Christian Vidal Wolf <christianvidalwolf@gmail.com>
Date: Sat, 21 Feb 2026 17:52:04 +0100
Subject: [PATCH] fix: prevent crash on legacy experiments missing ASIN arrays

---
 components/ExperimentDetail.tsx | 2 +-
 components/ExperimentsView.tsx  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/components/ExperimentDetail.tsx b/components/ExperimentDetail.tsx
index 00c2f61..4aed142 100644
--- a/components/ExperimentDetail.tsx
+++ b/components/ExperimentDetail.tsx
@@ -67,7 +67,7 @@ const ExperimentDetail: React.FC<ExperimentDetailProps> = ({ experimentId, onClo
   const chartData = useMemo(() => {
     if (!experiment || !salesData.length) return [];
 
-    const asinSet = new Set(experiment.asins.map(a => a.toUpperCase()));
+    const asinSet = new Set((experiment.asins || []).map(a => a.toUpperCase()));
     const weeklyMap = new Map<string, any>();
 
     salesData.forEach(r => {
diff --git a/components/ExperimentsView.tsx b/components/ExperimentsView.tsx
index cdea87f..2e67193 100644
--- a/components/ExperimentsView.tsx
+++ b/components/ExperimentsView.tsx
@@ -17,9 +17,9 @@ const getChartMetricColor = (metric: string) => {
 
 const ExperimentSparkline: React.FC<{ experiment: ExperimentListItem; salesData: CombinedKPIs[] }> = ({ experiment, salesData }) => {
   const chartData = useMemo(() => {
-    if (!experiment.asins || !salesData.length) return [];
+    if (!experiment?.asins || !salesData?.length) return [];
 
-    const asinSet = new Set(experiment.asins.map(a => a.toUpperCase()));
+    const asinSet = new Set((experiment.asins || []).map(a => (a || '').toUpperCase()));
     const weeklyMap = new Map<string, any>();
 
     salesData.forEach(r => {