From 7a7556e8a9bf0219d2992cb43e2f31f660f48fe2 Mon Sep 17 00:00:00 2001
From: Suherdy Yacob <suherdy.yacob@mapan.co.id>
Date: Fri, 29 May 2026 16:37:33 +0700
Subject: [PATCH] fix: add optional chaining to prevent runtime errors when
 accessing reward properties in pos_order.js

---
 static/src/app/models/pos_order.js | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/static/src/app/models/pos_order.js b/static/src/app/models/pos_order.js
index d9a0361..736f978 100644
--- a/static/src/app/models/pos_order.js
+++ b/static/src/app/models/pos_order.js
@@ -309,10 +309,10 @@ patch(PosOrder.prototype, {
 
         // Separate cheapest product reward lines from others
         const cheapestRewardLines = rewardLines.filter(
-            line => line.reward_id && line.reward_id.reward_product_applicability === 'cheapest'
+            line => line.reward_id?.reward_product_applicability === 'cheapest'
         );
         const otherRewardLines = rewardLines.filter(
-            line => !(line.reward_id && line.reward_id.reward_product_applicability === 'cheapest')
+            line => line.reward_id?.reward_product_applicability !== 'cheapest'
         );
 
         // If there are cheapest reward lines, handle them separately.
@@ -378,8 +378,8 @@ patch(PosOrder.prototype, {
                 reward_identifier_code: line.reward_identifier_code,
             };
             if (
-                claimedReward.reward.program_id?.program_type === "gift_card" ||
-                claimedReward.reward.program_id?.program_type === "ewallet"
+                claimedReward.reward?.program_id?.program_type === "gift_card" ||
+                claimedReward.reward?.program_id?.program_type === "ewallet"
             ) {
                 paymentRewards.push(claimedReward);
             } else if (claimedReward.reward.reward_type === "product") {
@@ -423,17 +423,17 @@ patch(PosOrder.prototype, {
                 continue;
             }
             if (
-                claimedReward.reward.program_id?.program_type === "coupons" &&
+                claimedReward.reward?.program_id?.program_type === "coupons" &&
                 this.lines.find(
-                    (rewardline) => rewardline.reward_id?.id === claimedReward.reward.id
+                    (rewardline) => rewardline.reward_id?.id === claimedReward.reward?.id
                 )
             ) {
                 continue;
             }
             if (
-                claimedReward.reward.reward_product_ids?.length === 1 &&
+                claimedReward.reward?.reward_product_ids?.length === 1 &&
                 allRewardsMerged.filter(
-                    (reward) => reward.reward.program_id?.id === claimedReward.reward.program_id?.id
+                    (reward) => reward.reward?.program_id?.id === claimedReward.reward?.program_id?.id
                 ).length === 1
             ) {
                 delete claimedReward.args["quantity"];