Create database works with new Vm

Refactoring

WinAppCommon/ViewModels/NewVm.cs

@@ -0,0 +1,71 @@
+using System.Threading.Tasks;
+using Windows.Storage;
+using GalaSoft.MvvmLight.Messaging;
+using GalaSoft.MvvmLight.Views;
+using MediatR;
+using Messages;
+using Microsoft.Extensions.DependencyInjection;
+using ModernKeePass.Application.Common.Interfaces;
+using ModernKeePass.Application.Database.Commands.CreateDatabase;
+using ModernKeePass.Application.Database.Queries.GetDatabase;
+using ModernKeePass.Common;
+using ModernKeePass.Models;
+
+namespace ModernKeePass.ViewModels
+{
+    public class NewVm : OpenVm
+    {
+        private readonly IMediator _mediator;
+        private readonly ISettingsProxy _settings;
+        private readonly INavigationService _navigation;
+        private string _importFormatHelp;
+
+        public bool IsImportChecked { get; set; }
+
+        public IStorageFile ImportFile { get; set; }
+
+        public string ImportFileExtensionFilter { get; set; } = "*";
+
+        public IImportFormat ImportFormat { get; set; }
+
+        public string ImportFormatHelp
+        {
+            get { return _importFormatHelp; }
+            set
+            {
+                _importFormatHelp = value;
+                RaisePropertyChanged(nameof(ImportFormatHelp));
+            }
+        }
+
+        public NewVm(): this(
+            App.Services.GetRequiredService<IMediator>(), 
+            App.Services.GetRequiredService<ISettingsProxy>(), 
+            App.Services.GetRequiredService<IMessenger>(), 
+            App.Services.GetRequiredService<INavigationService>()) { }
+
+        public NewVm(IMediator mediator, ISettingsProxy settings, IMessenger messenger, INavigationService navigation)
+        {
+            _mediator = mediator;
+            _settings = settings;
+            _navigation = navigation;
+
+            messenger.Register<CredentialsSetMessage>(this, async message => await CreateDatabase(message));
+        }
+
+        public async Task CreateDatabase(CredentialsSetMessage message)
+        {
+            await _mediator.Send(new CreateDatabaseCommand
+            {
+                FilePath = Token,
+                KeyFilePath = message.KeyFilePath,
+                Password = message.Password,
+                Name = "ModernKeePass",
+                Version = _settings.GetSetting(Constants.Settings.DefaultFileFormat, "4"),
+                CreateSampleData = _settings.GetSetting<bool>(Constants.Settings.Sample)
+            });
+            var database = await _mediator.Send(new GetDatabaseQuery());
+            _navigation.NavigateTo(Constants.Navigation.GroupPage, new NavigationItem { Id = database.RootGroupId });
+        }
+    }
+}