From c2471c200471e62b80133542183eb14af7c79bc7 Mon Sep 17 00:00:00 2001
From: Roy Ben-Shabat <Roy@Twine-s.com>
Date: Sun, 4 Aug 2019 12:59:34 +0300
Subject: Implemented emergency switch.

---
 .../PPC/Tango.PPC.UI/ViewModels/EmergencyViewVM.cs | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/EmergencyViewVM.cs

(limited to 'Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels')

diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/EmergencyViewVM.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/EmergencyViewVM.cs
new file mode 100644
index 000000000..87b3c012b
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/EmergencyViewVM.cs
@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.Integration.Emergency;
+using Tango.PPC.Common;
+using Tango.PPC.Common.Navigation;
+
+namespace Tango.PPC.UI.ViewModels
+{
+    public class EmergencyViewVM : PPCViewModel
+    {
+        private bool _isActive;
+
+        public override void OnApplicationStarted()
+        {
+
+        }
+
+        public override void OnApplicationReady()
+        {
+            base.OnApplicationReady();
+            MachineProvider.MachineOperator.EmergencyNotificationProvider.StatusChanged += EmergencyNotificationProvider_StatusChanged;
+        }
+
+        private void EmergencyNotificationProvider_StatusChanged(object sender, EmergencyStatusChangedEventArgs e)
+        {
+            InvokeUI(async () =>
+            {
+                if (e.Status == EmergencyStatus.On && !_isActive)
+                {
+                    LogManager.Log("Emergency switch activated...");
+                    _isActive = true;
+                    await NavigationManager.NavigateTo(NavigationView.EmergencyView);
+                }
+                else if (_isActive)
+                {
+                    LogManager.Log("Emergency switch deactivated...");
+                    _isActive = false;
+                    await NavigationManager.NavigateTo(NavigationView.LayoutView);
+                }
+
+                if (e.Status == EmergencyStatus.Error && e.ErrorException != null)
+                {
+                    LogManager.Log(e.ErrorException, "Error occurred while detecting emergency switch.");
+                }
+            });
+        }
+    }
+}
-- 
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