From 3983b6a66d73c65028606e341cf74f6af354e4b2 Mon Sep 17 00:00:00 2001
From: Alaguraj0361 <alaguraj0361@gmail.com>
Date: Mon, 16 Feb 2026 16:17:11 +0530
Subject: [PATCH] Add Kitchen Display System (KDS) with real-time order status
 management and a dedicated Kanban view for order lines.

---
 addons/dine360_kds/models/pos_order_line.py     | 14 ++++++++++++--
 addons/dine360_kds/static/src/js/kds_backend.js | 17 +++++++++++++++--
 addons/dine360_kds/static/src/js/pos_kds.js     |  8 ++++++++
 .../dine360_kds/views/pos_order_line_views.xml  |  2 +-
 4 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/addons/dine360_kds/models/pos_order_line.py b/addons/dine360_kds/models/pos_order_line.py
index 1dc6d94..a4f369d 100644
--- a/addons/dine360_kds/models/pos_order_line.py
+++ b/addons/dine360_kds/models/pos_order_line.py
@@ -101,9 +101,19 @@ class PosOrderLine(models.Model):
             # Handle lines that are actually allowed to be updated to waiting
             remaining_lines = self.filtered(lambda l: l.preparation_status not in ['served', 'ready', 'preparing'])
             if remaining_lines:
-                return super(PosOrderLine, remaining_lines).write(vals)
+                res = super(PosOrderLine, remaining_lines).write(vals)
+                # If quantity changed or status is waiting, notify KDS to refresh
+                remaining_lines._notify_kds()
+                return res
             return True
-        return super(PosOrderLine, self).write(vals)
+
+        res = super(PosOrderLine, self).write(vals)
+        # Notify KDS for quantity changes on active items
+        if 'qty' in vals:
+            active_lines = self.filtered(lambda l: l.preparation_status in ['waiting', 'preparing'])
+            if active_lines:
+                active_lines._notify_kds()
+        return res
 
     def action_start_preparing(self):
         self.write({
diff --git a/addons/dine360_kds/static/src/js/kds_backend.js b/addons/dine360_kds/static/src/js/kds_backend.js
index 98c2947..987f5e4 100644
--- a/addons/dine360_kds/static/src/js/kds_backend.js
+++ b/addons/dine360_kds/static/src/js/kds_backend.js
@@ -63,8 +63,21 @@ export class KdsKanbanController extends KanbanController {
 
         if (shouldReload) {
             // Reload the view to show the new order
-            console.log("[KDS Controller] Reloading view...");
-            this.model.load();
+            // Adding a small delay to ensure the transaction is fully committed and indexed
+            console.log("[KDS Controller] New order received. Reloading view in 1.5s...");
+            setTimeout(async () => {
+                try {
+                    await this.model.load();
+                    console.log("[KDS Controller] View reloaded. Current record count:", this.model.root.count);
+
+                    // Force a re-render if the view still thinks it's empty
+                    if (this.model.root.count > 0) {
+                        this.render();
+                    }
+                } catch (error) {
+                    console.error("[KDS Controller] Error during reload:", error);
+                }
+            }, 1500);
         }
     }
 }
diff --git a/addons/dine360_kds/static/src/js/pos_kds.js b/addons/dine360_kds/static/src/js/pos_kds.js
index cb103ca..02f2c5e 100644
--- a/addons/dine360_kds/static/src/js/pos_kds.js
+++ b/addons/dine360_kds/static/src/js/pos_kds.js
@@ -52,6 +52,14 @@ patch(Orderline.prototype, {
             'cancelled': 'Cancelled'
         };
         return labels[this.preparation_status] || this.preparation_status;
+    },
+
+    can_be_merged_with(line) {
+        // Prevent merging if the existing line is already being prepared or served
+        if (this.preparation_status && this.preparation_status !== 'waiting') {
+            return false;
+        }
+        return super.can_be_merged_with(...arguments);
     }
 });
 
diff --git a/addons/dine360_kds/views/pos_order_line_views.xml b/addons/dine360_kds/views/pos_order_line_views.xml
index 6072efc..4107624 100644
--- a/addons/dine360_kds/views/pos_order_line_views.xml
+++ b/addons/dine360_kds/views/pos_order_line_views.xml
@@ -4,7 +4,7 @@
         <field name="name">pos.order.line.kds.kanban</field>
         <field name="model">pos.order.line</field>
         <field name="arch" type="xml">
-            <kanban js_class="kds_kanban" default_group_by="preparation_status" create="false" class="o_kanban_small_column o_kanban_project_tasks" sample="1">
+            <kanban js_class="kds_kanban" default_group_by="preparation_status" create="false" class="o_kanban_small_column o_kanban_project_tasks">
                 <field name="preparation_status"/>
                 <field name="color"/>
                 <field name="product_id"/>