From d33c19b3ac6803de4b5c8d475832efef131c1a45 Mon Sep 17 00:00:00 2001
From: Roy Ben Shabat <Roy@twine-s.com>
Date: Wed, 30 Dec 2020 15:11:34 +0000
Subject: Revert "Hope it is fine"

---
 .../PPC/Tango.PPC.UI/ViewModels/PowerOffViewVM.cs  | 134 +++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/PowerOffViewVM.cs

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

diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/PowerOffViewVM.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/PowerOffViewVM.cs
new file mode 100644
index 000000000..e3ab7d111
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/PowerOffViewVM.cs
@@ -0,0 +1,134 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.Core.Commands;
+using Tango.Integration.Operation;
+using Tango.PMR.Power;
+using Tango.PPC.Common;
+using Tango.PPC.UI.AppBarItems;
+using Tango.PPC.UI.Views;
+
+namespace Tango.PPC.UI.ViewModels
+{
+    public class PowerOffViewVM : PPCViewModel
+    {
+        private PowerDownHandler _handler;
+        private PowerOffAppBarItem _appBarItem;
+        private int _abortTries;
+
+        private StartPowerDownResponse _status;
+        public StartPowerDownResponse Status
+        {
+            get { return _status; }
+            set { _status = value; RaisePropertyChangedAuto(); }
+        }
+
+        public RelayCommand AbortCommand { get; set; }
+
+        public PowerOffViewVM()
+        {
+            _appBarItem = new PowerOffAppBarItem();
+            _appBarItem.Pressed += (x, e) =>
+            {
+                NavigationManager.NavigateTo<InternalModule>(nameof(PowerOffView));
+            };
+            AbortCommand = new RelayCommand(AbortPowerOff);
+        }
+
+        public override void OnApplicationStarted()
+        {
+
+        }
+
+        public override void OnApplicationReady()
+        {
+            base.OnApplicationReady();
+            MachineProvider.MachineOperator.PowerDownStarted += MachineOperator_PowerDownStarted;
+        }
+
+        private void MachineOperator_PowerDownStarted(object sender, PowerDownStartedEventArgs e)
+        {
+            _abortTries = 0;
+            _handler = e.Handler;
+
+            _handler.StatusChanged += OnStatusChanged;
+            _handler.Failed += OnFailed;
+            _handler.Completed += OnCompleted;
+
+            InvokeUI(async () =>
+            {
+                await NavigationManager.NavigateTo<InternalModule>(nameof(PowerOffView));
+                NotificationProvider.PushAppBarItem(_appBarItem);
+            });
+        }
+
+        private void OnStatusChanged(object sender, PowerDownStatusChangedEventArgs e)
+        {
+            Status = e.Status;
+            _appBarItem.Status = Status;
+        }
+
+        private void OnCompleted(object sender, EventArgs e)
+        {
+            InvokeUI(async () =>
+            {
+                if (IsVisible)
+                {
+                    await NavigationManager.NavigateBack();
+                }
+
+                NotificationProvider.PopAppBarItem(_appBarItem);
+            });
+        }
+
+        private void OnFailed(object sender, Exception ex)
+        {
+            InvokeUI(async () =>
+            {
+                await NotificationProvider.ShowError($"An error occurred while powering off the machine.\n{ex.FlattenMessage()}");
+
+                if (IsVisible)
+                {
+                    await NavigationManager.NavigateBack();
+                }
+
+                NotificationProvider.PopAppBarItem(_appBarItem);
+            });
+        }
+
+        private async void AbortPowerOff()
+        {
+            try
+            {
+                NotificationProvider.SetGlobalBusyMessage("Aborting machine power off...");
+                await _handler.Abort();
+                await NavigationManager.NavigateBack();
+                NotificationProvider.PopAppBarItem(_appBarItem);
+            }
+            catch (Exception ex)
+            {
+                _abortTries++;
+                LogManager.Log(ex, "Power down abort error.");
+                NotificationProvider.ReleaseGlobalBusyMessage();
+                await NotificationProvider.ShowError($"An error occurred while trying to abort the power off sequence.\n{ex.FlattenMessage()}");
+
+                if (_abortTries > 2)
+                {
+                    if (IsVisible)
+                    {
+                        await NavigationManager.NavigateBack();
+                    }
+
+                    NotificationProvider.PopAppBarItem(_appBarItem);
+                }
+            }
+            finally
+            {
+                NotificationProvider.ReleaseGlobalBusyMessage();
+            }
+        }
+    }
+}
-- 
cgit v1.3.1