Working on machine studio storage module.

1 files changed, 142 insertions, 9 deletions

diff --git a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Storage/ViewModels/MainViewVM.cs b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Storage/ViewModels/MainViewVM.cs
index f28783590..1c6371f43 100644
--- a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Storage/ViewModels/MainViewVM.cs
+++ b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Storage/ViewModels/MainViewVM.cs
@@ -1,19 +1,28 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using Tango.Core.Commands;
+using Tango.Core.IO;
 using Tango.Integration.ExternalBridge;
 using Tango.Integration.Storage;
 using Tango.MachineStudio.Common;
+using Tango.MachineStudio.Common.Notifications;
 using Tango.MachineStudio.Common.StudioApplication;
+using Tango.MachineStudio.Storage.Models;
 
 namespace Tango.MachineStudio.Storage.ViewModels
 {
     public class MainViewVM : StudioViewModel
     {
+        public event EventHandler CurrentFolderChanged;
+
         private IStudioApplicationManager _applicationManager;
+        private INotificationProvider _notification;
         private bool _machine_operator_changed = true;
 
         private StorageManager _storageManager;
@@ -43,12 +52,38 @@ namespace Tango.MachineStudio.Storage.ViewModels
 
         public RelayCommand GoCommand { get; set; }
 
-        public MainViewVM(IStudioApplicationManager applicationManager)
+        public RelayCommand<StorageFileHandlerModel> CancelFileHandlerCommand { get; set; }
+
+        public RelayCommand<StorageFileHandlerModel> OpenFileHandlerCommand { get; set; }
+
+        public RelayCommand<StorageFileHandlerModel> RemoveFileHandlerCommand { get; set; }
+
+        public ObservableCollection<StorageFileHandlerModel> FileHandlers { get; set; }
+
+        public MainViewVM(IStudioApplicationManager applicationManager, INotificationProvider notificationProvider)
         {
             _applicationManager = applicationManager;
+            _notification = notificationProvider;
             _applicationManager.ConnectedMachineChanged += _applicationManager_ConnectedMachineChanged;
 
-            GoCommand = new RelayCommand(NavigateToCurrentPath);
+            FileHandlers = new ObservableCollection<StorageFileHandlerModel>();
+
+            GoCommand = new RelayCommand(() => NavigateToPath(CurrentPath), () => StorageManager != null);
+            BackCommand = new RelayCommand(NavigateBack, () => StorageManager != null && StorageManager.CurrentFolder.Parent != null);
+            CancelFileHandlerCommand = new RelayCommand<StorageFileHandlerModel>(CancelFileHandler);
+            OpenFileHandlerCommand = new RelayCommand<StorageFileHandlerModel>(OpenFileHandler);
+            RefreshCommand = new RelayCommand(Refresh, () => StorageManager != null);
+            RemoveFileHandlerCommand = new RelayCommand<StorageFileHandlerModel>(RemoveFileHandler);
+        }
+
+        private void OpenFileHandler(StorageFileHandlerModel handler)
+        {
+            ShowInExplorer(handler.FilePath);
+        }
+
+        private async void CancelFileHandler(StorageFileHandlerModel handler)
+        {
+            await handler.Handler.Cancel();
         }
 
         private void _applicationManager_ConnectedMachineChanged(object sender, IExternalBridgeClient e)
@@ -63,7 +98,7 @@ namespace Tango.MachineStudio.Storage.ViewModels
 
         public override void OnApplicationReady()
         {
-            
+
         }
 
         public override void OnNavigatedTo()
@@ -77,19 +112,117 @@ namespace Tango.MachineStudio.Storage.ViewModels
             }
         }
 
-        private async void NavigateToCurrentPath()
+        private async void NavigateToPath(String path)
         {
-            await StorageManager.GetFolder(CurrentPath);
+            IsFree = false;
+
+            try
+            {
+                await StorageManager.GetFolder(path);
+                CurrentPath = StorageManager.CurrentPath;
+                CurrentFolderChanged?.Invoke(this, new EventArgs());
+            }
+            catch (Exception ex)
+            {
+                _notification.ShowError($"Error navigating to the specified path.\n{ex.Message}");
+            }
+
+            IsFree = true;
+
+            InvalidateRelayCommands();
         }
 
         private async void Initialize()
         {
             if (_applicationManager.ConnectedMachine != null)
             {
-                StorageManager = _applicationManager.ConnectedMachine.CreateStorageManager();
-                await StorageManager.GetStorageDrive();
-                await StorageManager.GetRootFolder();
-                CurrentPath = StorageManager.StorageDrive.Root;
+                try
+                {
+                    StorageManager = _applicationManager.ConnectedMachine.CreateStorageManager();
+                    await StorageManager.GetStorageDrive();
+                    await StorageManager.GetRootFolder();
+                    CurrentPath = StorageManager.StorageDrive.Root;
+                }
+                catch (Exception ex)
+                {
+                    _notification.ShowError($"An error occurred while trying to initialize the storage manager.\n{ex.Message}");
+                }
+
+                InvalidateRelayCommands();
+            }
+        }
+
+        public void OnStorageItemDoubleClicked(StorageItem storageItem)
+        {
+            if (storageItem is StorageFolder && storageItem != null)
+            {
+                NavigateToPath(storageItem.Path);
+            }
+            else
+            {
+                DownloadStorageItem(storageItem as StorageFile);
+            }
+        }
+
+        private void NavigateBack()
+        {
+            NavigateToPath(StorageManager.CurrentFolder.Parent);
+        }
+
+        private void Refresh()
+        {
+            NavigateToPath(StorageManager.CurrentFolder.Path);
+        }
+
+        private async void DownloadStorageItem(StorageFile storageFile)
+        {
+            var downloadsFolder = KnownFolders.GetPath(KnownFolder.Downloads);
+            var file = Path.Combine(downloadsFolder, storageFile.Name);
+
+            FileStream fs = new FileStream(Path.Combine(downloadsFolder, storageFile.Name), FileMode.Create);
+            var handler = await StorageManager.DownloadFile(storageFile, fs);
+            handler.Completed += (_, __) =>
+            {
+                fs.Dispose();
+            };
+
+            handler.Canceled += (_, __) =>
+            {
+                fs.Dispose();
+                File.Delete(file);
+            };
+
+            handler.Failed += (_, __) =>
+            {
+                fs.Dispose();
+                File.Delete(file);
+            };
+
+            FileHandlers.Insert(0, new StorageFileHandlerModel(handler, file, StorageFileHandlerType.Download));
+        }
+
+        /// <summary>
+        /// Shows the file in explorer.
+        /// </summary>
+        /// <param name="path">Name of the file/folder.</param>
+        public static void ShowInExplorer(String path)
+        {
+            Process.Start("explorer.exe", string.Format("/select,\"{0}\"", path));
+        }
+
+        private void RemoveFileHandler(StorageFileHandlerModel handler)
+        {
+            if (handler.Handler.Status == StorageFileHandlerStatus.Active)
+            {
+                if (_notification.ShowQuestion("Are you sure you want to cancel this file operation?"))
+                {
+                    handler.Handler.Cancel();
+                    FileHandlers.Remove(handler);
+                }
+            }
+            else
+            {
+                FileHandlers.Remove(handler);
             }
         }
     }