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path: root/Software/Visual_Studio/FSE/Modules/Tango.FSE.MachineConfiguration/ViewModels/MachineViewVM.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Entities;
using Tango.FSE.Common;
using Tango.FSE.Common.Navigation;
using Tango.FSE.MachineConfiguration.Messages;
using static Tango.FSE.BL.Services.MachineConfigurationService;
using static Tango.FSE.MachineConfiguration.ViewModels.MachineViewVM;

namespace Tango.FSE.MachineConfiguration.ViewModels
{
    public class MachineViewVM : ConfigurationViewModel, INavigationObjectReceiver<NavigationObject>
    {
        public class NavigationObject
        {
            public String MachineGuid { get; set; }
        }

        public enum NavigationView
        {
            SettingsView,
            DataStoreView,
        }

        private NavigationView _selectedView;
        public NavigationView SelectedView
        {
            get { return _selectedView; }
            set
            {
                if (value == NavigationView.DataStoreView)
                {
                    if (!CurrentUser.HasPermission(Tango.BL.Enumerations.Permissions.DataStoreRead))
                    {
                        Task.Delay(500).ContinueWith((x) => 
                        {
                            SelectedView = _selectedView;
                            NotificationProvider.ShowError("The current user profile does not allow accessing the data store.\nPlease contact your administrator.");
                        });
                        return;
                    }
                }

                _selectedView = value;
                RaisePropertyChangedAuto();
            }
        }

        private MachineEditingComposition _editingComposition;
        public MachineEditingComposition EditingComposition
        {
            get { return _editingComposition; }
            set { _editingComposition = value; RaisePropertyChangedAuto(); }
        }

        public void OnNavigatedToWithObject(NavigationObject obj)
        {
            SelectedView = NavigationView.SettingsView;
            LoadMachine(obj.MachineGuid);
        }

        private async void LoadMachine(String machineGuid)
        {
            using (NotificationProvider.PushTaskItem("Loading machine configuration..."))
            {
                EditingComposition = await Services.MachineConfigurationService.GetMachineEditingComposition(machineGuid);
                RaiseMessage(new EditingCompositionLoadedMessage() { EditingComposition = EditingComposition });
            }
        }
    }
}