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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.DI;
using Tango.PPC.Logging.ViewModels;

namespace Tango.PPC.Logging
{
    public static class ViewModelLocator
    {
        /// <summary>
        /// Initializes a new instance of the ViewModelLocator class.
        /// </summary>
        static ViewModelLocator()
        {
            TangoIOC.Default.Register<MainViewVM>();
        }

        /// <summary>
        /// Gets the main view VM.
        /// </summary>
        public static MainViewVM MainViewVM
        {
            get
            {
                return TangoIOC.Default.GetInstance<MainViewVM>();
            }
        }
    }
}
lass="p">; using Tango.Core.Helpers; using Tango.PPC.Common; using Tango.PPC.Common.Application; using Tango.PPC.Common.Authentication; using Tango.PPC.Common.MachineSetup; using Tango.PPC.Common.Modules; using Tango.PPC.Common.Navigation; using Tango.PPC.Common.Notifications; using Tango.PPC.Common.Notifications.NotificationItems; using Tango.PPC.Jobs; using Tango.SharedUI; using System.Data.Entity; using Tango.BL.Enumerations; using Tango.BL.Builders; namespace Tango.PPC.UI.ViewModels { /// <summary> /// Represents the PPC loading splash screen view model. /// </summary> /// <seealso cref="Tango.PPC.Common.PPCViewModel" /> public class LoadingViewVM : PPCViewModel { /// <summary> /// Gets or sets the module loader. /// </summary> [TangoInject] public IPPCModuleLoader ModuleLoader { get; set; } private bool _isLoading; /// <summary> /// Gets or sets a value indicating whether this instance is loading. /// </summary> public bool IsLoading { get { return _isLoading; } set { _isLoading = value; RaisePropertyChangedAuto(); } } /// <summary> /// Initializes a new instance of the <see cref="LoadingViewVM"/> class. /// </summary> public LoadingViewVM(IPPCApplicationManager applicationManager) { if (!DesignMode) { Task.Delay(1000).ContinueWith((x) => { IsLoading = true; }); } applicationManager.ApplicationInitializationError += ApplicationManager_ApplicationInitializationError; } private void ApplicationManager_ApplicationInitializationError(object sender, Exception ex) { InvokeUI(() => { NavigationManager.NavigateWithObject<Exception>(NavigationView.LoadingErrorView, ex); IsLoading = false; }); } /// <summary> /// Called when the application has been started. /// </summary> public async override void OnApplicationStarted() { using (ObservablesContext db = ObservablesContext.CreateDefault()) { var machine = await db.Machines.FirstAsync(); if (db.Users.Count() == 1 || machine.AutoLogin) { var user = await new UserBuilder(db).SetFirst().WithRolesAndPermissions().BuildAsync(); if (!user.HasRole(Roles.PPCUser)) { var role = db.Roles.Single(x => x.Code == (int)Roles.PPCUser); user.Roles.Add(role); db.UsersRoles.Add(new BL.Entities.UsersRole() { User = user, Role = role, }); await db.SaveChangesAsync(); } LogManager.Log($"Application started. Single user/Auto login detected ({user.Email}). Skipping LoginView..."); await AuthenticationProvider.Login(user.Email, user.Password, false); IsLoading = false; } else { LogManager.Log("Application started. Navigating to LoginView..."); await NavigationManager.NavigateTo(NavigationView.LoginView); IsLoading = false; } } } } }