WIP Split composite key user control

Some refactoring

WinAppCommon/ViewModels/UserControls/UpdateCredentialsViewModel.cs

@@ -0,0 +1,47 @@
+using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using ModernKeePass.Application.Common.Interfaces;
+using ModernKeePass.Application.Database.Commands.CreateDatabase;
+using ModernKeePass.Common;
+using ModernKeePass.Domain.Dtos;
+
+namespace ModernKeePass.ViewModels
+{
+    public class UpdateCredentialsViewModel : OpenDatabaseControlVm
+    {
+        private readonly ICredentialsProxy _credentials;
+        private readonly ISettingsProxy _settings;
+        private string _confirmPassword;
+        
+
+        public string ConfirmPassword
+        {
+            get { return _confirmPassword; }
+            set { SetProperty(ref _confirmPassword, value); }
+        }
+
+        public double PasswordComplexityIndicator => _credentials.EstimatePasswordComplexity(Password);
+
+        public new bool IsValid => HasPassword && Password == ConfirmPassword || HasKeyFile && KeyFilePath != string.Empty;
+
+        public UpdateCredentialsViewModel(): this(App.Services.GetRequiredService<ICredentialsProxy>(), App.Services.GetRequiredService<ISettingsProxy>()) { }
+
+        public UpdateCredentialsViewModel(ICredentialsProxy credentials, ISettingsProxy settings)
+        {
+            _credentials = credentials;
+            _settings = settings;
+        }
+
+        public async Task CreateDatabase(FileInfo fileInfo)
+        {
+            await Mediator.Send(new CreateDatabaseCommand
+            {
+                FilePath = fileInfo.Path,
+                KeyFilePath = HasKeyFile ? KeyFilePath : null,
+                Password = HasPassword ? Password : null,
+                Name = "New Database",
+                CreateSampleData = _settings.GetSetting<bool>(Constants.Settings.Sample)
+            });
+        }
+    }
+}