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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Integration.Services;
using Tango.Logging;
using Tango.MachineStudio.Common;
using Tango.MachineStudio.Common.Authentication;
using Tango.MachineStudio.Common.Modules;
using Tango.MachineStudio.Common.Navigation;
using Tango.MachineStudio.Common.Notifications;
using Tango.MachineStudio.Common.StudioApplication;
using Tango.MachineStudio.UI.SupervisingController;
using Tango.MachineStudio.UI.Views;
using Tango.PMR.Stubs;
using Tango.SharedUI;
using Tango.Transport.Adapters;
namespace Tango.MachineStudio.UI.ViewModels
{
public class MainViewVM : ViewModel<IMainView>
{
private IStudioModule _currentModule;
private INavigationManager _navigation;
private bool _isDisconnecting;
public IStudioModule CurrentModule
{
get { return _currentModule; }
set { _currentModule = value; RaisePropertyChangedAuto(); }
}
private bool _isModuleLoaded;
public bool IsModuleLoaded
{
get { return _isModuleLoaded; }
set { _isModuleLoaded = value; RaisePropertyChangedAuto(); }
}
private bool _isMenuOpened;
public bool IsMenuOpened
{
get { return _isMenuOpened; }
set { _isMenuOpened = value; RaisePropertyChangedAuto(); }
}
public RelayCommand<IStudioModule> StartModuleCommand { get; set; }
public RelayCommand HomeCommand { get; set; }
public RelayCommand ConnectCommand { get; set; }
public RelayCommand DisconnectCommand { get; set; }
public RelayCommand SignoutCommand { get; set; }
private IAuthenticationProvider _authenticationProvider;
public IAuthenticationProvider AuthenticationProvider
{
get { return _authenticationProvider; }
set { _authenticationProvider = value; RaisePropertyChangedAuto(); }
}
private IStudioModuleLoader _studioModuleLoader;
public IStudioModuleLoader StudioModuleLoader
{
get { return _studioModuleLoader; }
set { _studioModuleLoader = value; RaisePropertyChangedAuto(); }
}
private INotificationProvider _notificationProvider;
public INotificationProvider NotificationProvider
{
get { return _notificationProvider; }
set { _notificationProvider = value; RaisePropertyChangedAuto(); }
}
private IStudioApplicationManager _applicationManager;
public IStudioApplicationManager ApplicationManager
{
get { return _applicationManager; }
set { _applicationManager = value; RaisePropertyChangedAuto(); }
}
public MainViewVM(
IMainView view,
IAuthenticationProvider authenticationProvider,
IStudioModuleLoader studioModuleLoader,
INotificationProvider notificationProvider,
IStudioApplicationManager applicationManager,
INavigationManager navigationManager) : base(view)
{
_navigation = navigationManager;
AuthenticationProvider = authenticationProvider;
StudioModuleLoader = studioModuleLoader;
NotificationProvider = notificationProvider;
ApplicationManager = applicationManager;
StartModuleCommand = new RelayCommand<IStudioModule>(StartModule);
HomeCommand = new RelayCommand(Home);
ConnectCommand = new RelayCommand(ConnectToMachine);
SignoutCommand = new RelayCommand(SignOut);
DisconnectCommand = new RelayCommand(DisconnectFromMachine, (x) => ApplicationManager.IsMachineConnected && !_isDisconnecting);
}
private async void DisconnectFromMachine()
{
using (_notificationProvider.PushTaskItem("Disconnecting from machine..."))
{
_isDisconnecting = true;
InvalidateRelayCommands();
await ApplicationManager.ConnectedMachine.Disconnect();
ApplicationManager.ConnectedMachine = null;
_isDisconnecting = false;
InvalidateRelayCommands();
}
}
private void SignOut()
{
_authenticationProvider.Logout();
_navigation.NavigateTo(NavigationView.LoginView);
CurrentModule = null;
IsMenuOpened = false;
}
private void ConnectToMachine()
{
_notificationProvider.ShowModalDialog<MachineConnectionViewVM>(async (x) =>
{
if (x.SelectedMachine != null)
{
if (ApplicationManager.IsMachineConnected)
{
using (_notificationProvider.PushTaskItem("Disconnecting..."))
{
await ApplicationManager.ConnectedMachine.Disconnect();
await Task.Delay(1000);
}
}
if (x.SelectedMachine.RequiresAuthentication)
{
_notificationProvider.ShowModalDialog<MachineLoginViewVM>(async (login) =>
{
using (NotificationProvider.PushTaskItem("Connecting to machine " + x.SelectedMachine.ToString() + "..."))
{
try
{
await x.SelectedMachine.Connect();
var authenticated = await x.SelectedMachine.As<IExternalBridgeSecureClient>().Authenticate(login.Password);
if (!authenticated)
{
_notificationProvider.ShowError("It seems like you are not authorized to access the selected machine.");
}
else
{
ApplicationManager.ConnectedMachine = x.SelectedMachine;
}
}
catch (Exception ex)
{
LogManager.Log(ex);
_notificationProvider.ShowError(ex.Message);
}
InvalidateRelayCommands();
}
});
}
else
{
using (NotificationProvider.PushTaskItem("Connecting to " + x.SelectedMachine.ToString() + "..."))
{
try
{
await x.SelectedMachine.Connect();
ApplicationManager.ConnectedMachine = x.SelectedMachine;
}
catch (Exception ex)
{
LogManager.Log(ex);
_notificationProvider.ShowError(ex.Message);
}
InvalidateRelayCommands();
}
}
InvalidateRelayCommands();
}
InvalidateRelayCommands();
});
}
private void Home()
{
StartModule(null);
}
private void StartModule(IStudioModule module)
{
IsMenuOpened = false;
if (module != null)
{
CurrentModule = module;
IsModuleLoaded = true;
}
else
{
IsModuleLoaded = false;
}
}
protected override void OnViewAttached()
{
base.OnViewAttached();
}
}
}
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