From adabe4e1b99bc57f0381fb0a5bb3192ac0fdff18 Mon Sep 17 00:00:00 2001
From: Roy Ben Shabat <Roy.mail.net@gmail.com>
Date: Mon, 16 Mar 2020 14:32:39 +0200
Subject: Working on FSE/PPC FileSystem Provider/Service.

---
 .../ViewModels/FileSystemViewVM.cs                 | 80 +++++++++++++++++++---
 1 file changed, 72 insertions(+), 8 deletions(-)

(limited to 'Software/Visual_Studio/FSE/Modules/Tango.FSE.PPCConsole/ViewModels')

diff --git a/Software/Visual_Studio/FSE/Modules/Tango.FSE.PPCConsole/ViewModels/FileSystemViewVM.cs b/Software/Visual_Studio/FSE/Modules/Tango.FSE.PPCConsole/ViewModels/FileSystemViewVM.cs
index 44bd03c39..f9eff7e6f 100644
--- a/Software/Visual_Studio/FSE/Modules/Tango.FSE.PPCConsole/ViewModels/FileSystemViewVM.cs
+++ b/Software/Visual_Studio/FSE/Modules/Tango.FSE.PPCConsole/ViewModels/FileSystemViewVM.cs
@@ -1,15 +1,19 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Input;
 using Tango.Core.Commands;
 using Tango.FileSystem;
 using Tango.FSE.Common;
+using Tango.FSE.Common.Connection;
+using static Tango.SharedUI.Controls.NavigationControl;
 
 namespace Tango.FSE.PPCConsole.ViewModels
 {
-    public class FileSystemViewVM : FSEViewModel
+    public class FileSystemViewVM : FSEViewModel, INavigationViewModel
     {
         private FileSystemItem _currentItem;
         public FileSystemItem CurrentItem
@@ -26,32 +30,92 @@ namespace Tango.FSE.PPCConsole.ViewModels
         }
 
         public RelayCommand NavigateCommand { get; set; }
+        public RelayCommand<FileSystemItem> OpenItemCommand { get; set; }
+        public RelayCommand BackCommand { get; set; }
 
         public FileSystemViewVM()
         {
-            NavigateCommand = new RelayCommand(Navigate);
+            NavigateCommand = new RelayCommand(NavigateToCurrentPath);
+            OpenItemCommand = new RelayCommand<FileSystemItem>(OpenFileSystemItem);
+            BackCommand = new RelayCommand(NavigateBack, () => !(CurrentItem is FolderItem) || !(CurrentItem as FolderItem).IsRoot);
+        }
+
+        private async void NavigateBack()
+        {
+            if (CurrentItem.Path.Length == 3)
+            {
+                await Navigate(null);
+            }
+            else
+            {
+                String parent = Path.GetDirectoryName(CurrentItem.Path);
+                await Navigate(parent);
+            }
+        }
+
+        public override void OnApplicationStarted()
+        {
+            base.OnApplicationStarted();
+            MachineProvider.MachineConnected += MachineProvider_MachineConnected;
         }
 
         public override void OnApplicationReady()
         {
             base.OnApplicationReady();
+        }
+
+        private async void MachineProvider_MachineConnected(object sender, MachineConnectedEventArgs e)
+        {
+            await Navigate(null);
+        }
+
+        private async void NavigateToCurrentPath()
+        {
+            await Navigate(CurrentPath);
+        }
 
-            FileSystemManager manager = new FileSystemManager();
-            CurrentItem = FileSystemItem.FromDTO(manager.GetFolder(@"C:\"));
+        private async void OpenFileSystemItem(FileSystemItem item)
+        {
+            if (item != null)
+            {
+                await Navigate(item.Path);
+            }
         }
 
-        private void Navigate()
+        private async Task Navigate(String path)
         {
-            if (CurrentPath.IsNotNullOrEmpty())
+            try
+            {
+                IsFree = false;
+
+                Mouse.OverrideCursor = Cursors.AppStarting;
+
+                if (path != null)
+                {
+                    CurrentItem = await FileSystemProvider.GetFolder(path) as FileSystemItem;
+                }
+                else
+                {
+                    CurrentItem = await FileSystemProvider.GetThisPC() as FileSystemItem;
+                }
+            }
+            catch (Exception ex)
+            {
+                IsFree = true;
+                Mouse.OverrideCursor = null;
+                await NotificationProvider.ShowError($"Error navigating to the specified path.\n{ex.FlattenMessage()}");
+            }
+            finally
             {
-                FileSystemManager manager = new FileSystemManager();
-                CurrentItem = FileSystemItem.FromDTO(manager.GetFolder(CurrentPath));
+                IsFree = true;
+                Mouse.OverrideCursor = null;
             }
         }
 
         private void OnCurrentItemChanged()
         {
             CurrentPath = CurrentItem.Path;
+            InvalidateRelayCommands();
         }
     }
 }
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