fix case when variant has no metadata and no package elements are displayed

utils/medusa-product.ts

@@ -20,12 +20,24 @@ export const getAnalysisElementMedusaProductIds = (products: Pick<StoreProduct,
     .flatMap((product) => {
       const value = (product as Product)?.metadata?.analysisElementMedusaProductIds?.replaceAll("'", '"');
       const value_variant = (product as Product)?.variant?.metadata?.analysisElementMedusaProductIds?.replaceAll("'", '"');
+
+      const result: string[] = [];
       try {
-        return [...JSON.parse(value as string), ...JSON.parse(value_variant as string)];
+        if (value) {
+          result.push(...JSON.parse(value as string));
+        }
+      } catch (e) {
+        console.error("Failed to parse analysisElementMedusaProductIds from analysis package variant, possibly invalid format", e);
+      }
+      try {
+        if (value_variant) {
+          result.push(...JSON.parse(value_variant as string));
+        }
       } catch (e) {
         console.error("Failed to parse analysisElementMedusaProductIds from analysis package, possibly invalid format", e);
-        return [];
       }
+
+      return result;
     })
     .filter(Boolean) as string[];