fix: prevent POS crashes by adding PosOrderLine setup patches and strengthening reward line orphan guards

static/src/app/pos_loyalty_safe_coupon_patch.js

@@ -1,38 +1,59 @@
 /** @odoo-module **/
 
 import { PosOrder } from "@point_of_sale/app/models/pos_order";
+import { PosOrderLine } from "@point_of_sale/app/models/pos_order_line";
 import OrderPaymentValidation from "@point_of_sale/app/utils/order_payment_validation";
 import { PosStore } from "@point_of_sale/app/services/pos_store";
 import { patch } from "@web/core/utils/patch";
 
 /**
  * Helper: delete all reward lines in an order where reward_id or reward_id.program_id is missing.
- * This prevents TypeError crashes when the core code accesses reward.program_id.xxx
- * on lines whose loyalty program was archived, deleted, or not yet loaded into the POS cache.
  */
 function purgeOrphanedRewardLines(order) {
     if (!order || !order.lines) {
         return;
     }
     const orphans = order.lines.filter(
-        (line) =>
-            line.is_reward_line &&
-            (!line.reward_id || !line.reward_id.program_id)
+        (line) => line.is_reward_line && (!line.reward_id || !line.reward_id.program_id)
     );
     for (const line of orphans) {
         try {
             line.delete();
         } catch (e) {
-            // Ignore deletion errors — the line may already be gone
+            // ignore
         }
     }
 }
 
+// ─── PosOrderLine: earliest possible interception ─────────────────────────────
+// The crash happens at Proxy.create → renderRecords, which fires DURING line creation.
+// Patching setup() lets us mark orphaned lines for deletion synchronously,
+// before OWL components re-render and crash on reward_id.program_id.
+
+patch(PosOrderLine.prototype, {
+    setup(vals) {
+        super.setup(...arguments);
+        // If this reward line has no valid program, schedule deletion immediately.
+        // We use Promise.resolve (microtask) because we cannot delete during setup().
+        if (this.is_reward_line && (!this.reward_id || !this.reward_id.program_id)) {
+            Promise.resolve().then(() => {
+                try {
+                    if (this.is_reward_line && (!this.reward_id || !this.reward_id.program_id)) {
+                        this.delete();
+                    }
+                } catch (e) {
+                    // ignore
+                }
+            });
+        }
+    },
+});
+
 // ─── PosOrder patches ─────────────────────────────────────────────────────────
 
 patch(PosOrder.prototype, {
     /**
-     * getLoyaltyPoints reads coupon_id.id — guard against undefined coupon_id.
+     * getLoyaltyPoints reads coupon_id.id — guard undefined coupon_id.
      */
     getLoyaltyPoints() {
         const undefinedCouponLines = [];
@@ -52,7 +73,7 @@ patch(PosOrder.prototype, {
     },
 
     /**
-     * _updateRewardLines rebuilds reward lines — purge orphans before core touches them.
+     * _updateRewardLines — purge orphans before core re-processes them.
      */
     _updateRewardLines() {
         purgeOrphanedRewardLines(this);
@@ -60,8 +81,18 @@ patch(PosOrder.prototype, {
     },
 
     /**
-     * initState fires when an order is initialized (including from server restore).
-     * Schedule a purge on the next microtask so reactive relations are fully resolved first.
+     * _validForPointsCorrection — core accesses reward.program_id.id without null check.
+     * Guard it here.
+     */
+    _validForPointsCorrection(reward, line, rule) {
+        if (!reward || !reward.program_id || !rule.program_id) {
+            return false;
+        }
+        return super._validForPointsCorrection(...arguments);
+    },
+
+    /**
+     * initState — purge on next microtask after order initialization.
      */
     initState() {
         super.initState(...arguments);
@@ -94,8 +125,7 @@ patch(OrderPaymentValidation.prototype, {
 
 patch(PosStore.prototype, {
     /**
-     * afterProcessServerData — earliest global hook after all records are loaded.
-     * Purge orphaned reward lines from ALL open orders.
+     * afterProcessServerData — purge orphaned lines from ALL orders after load.
      */
     async afterProcessServerData() {
         for (const order of this.models["pos.order"].getAll()) {
@@ -105,8 +135,7 @@ patch(PosStore.prototype, {
     },
 
     /**
-     * updateRewards — called on every order-line change.
-     * Purge orphaned lines from the current order before loyalty recalculation.
+     * updateRewards — purge before loyalty recalculation.
      */
     updateRewards() {
         const order = this.getOrder();
@@ -117,8 +146,7 @@ patch(PosStore.prototype, {
     },
 
     /**
-     * orderUpdateLoyaltyPrograms — called when switching tables or rescanning codes.
-     * This is the path triggered by "Check Table" → `setTableFromUi` → `updateOrder`.
+     * orderUpdateLoyaltyPrograms — purge before loyalty program update (table switch path).
      */
     async orderUpdateLoyaltyPrograms() {
         const order = this.getOrder();
@@ -129,8 +157,7 @@ patch(PosStore.prototype, {
     },
 
     /**
-     * setTableFromUi — the exact entry point for the "Check Table → blank screen" crash.
-     * Purge ALL orders before switching so the target table's order is clean.
+     * setTableFromUi — "Check Table" entry point. Purge ALL orders before switching.
      */
     async setTableFromUi(table, orderUuid = null) {
         for (const order of this.models["pos.order"].getAll()) {
@@ -140,14 +167,11 @@ patch(PosStore.prototype, {
     },
 
     /**
-     * postProcessLoyalty — called when pushing/validating an order.
-     * Guards both reward.program_id === undefined AND coupon_id === undefined.
+     * postProcessLoyalty — guards reward.program_id AND coupon_id during order push.
      */
     async postProcessLoyalty(order) {
-        // Remove lines with missing program_id (core reads reward.program_id.id)
         purgeOrphanedRewardLines(order);
 
-        // Also guard coupon_id=undefined (original safe_coupon behavior)
         const undefinedCouponLines = [];
         for (const line of order._get_reward_lines()) {
             if (!line.coupon_id) {
@@ -156,7 +180,6 @@ patch(PosStore.prototype, {
             }
         }
 
-        // Strip dummy coupon key "0" from confirm_coupon_programs calls
         const originalCall = this.data.call;
         this.data.call = function (model, method, args) {
             if (model === "pos.order" && method === "confirm_coupon_programs") {