using System.Threading.Tasks;
using Windows.Storage;
using Windows.System;
using Windows.UI.Core;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Input;
using ModernKeePass.Common;
using ModernKeePass.Events;

// Pour en savoir plus sur le modèle d'élément Contrôle utilisateur, consultez la page http://go.microsoft.com/fwlink/?LinkId=234236

namespace ModernKeePass.Controls
{
    public sealed partial class OpenDatabaseUserControl : UserControl
    {
        public StorageFile DatabaseFile
        {
            get { return (StorageFile)GetValue(DatabaseFileProperty); }
            set { SetValue(DatabaseFileProperty, value); }
        }
        public static readonly DependencyProperty DatabaseFileProperty =
            DependencyProperty.Register(
                "DatabaseFile",
                typeof(StorageFile),
                typeof(OpenDatabaseUserControl),
                new PropertyMetadata(null, (o, args) => { }));

        public OpenDatabaseUserControl()
        {
            InitializeComponent();
        }

        public event PasswordCheckedEventHandler ValidationChecked;
        public delegate void PasswordCheckedEventHandler(object sender, PasswordEventArgs e);

        private void OpenButton_OnClick(object sender, RoutedEventArgs e)
        {
            var app = (App)Application.Current;
            StatusTextBlock.Text = app.Database.Open(DatabaseFile, PasswordBox.Password);
            if (app.Database.Status == DatabaseHelper.DatabaseStatus.Opened)
                ValidationChecked?.Invoke(this, new PasswordEventArgs(app.Database.RootGroup));
        }

        private void PasswordBox_KeyDown(object sender, KeyRoutedEventArgs e)
        {
            if (e.Key == VirtualKey.Enter) OpenButton_OnClick(null, null);
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            Task.Factory.StartNew(
                () => Dispatcher.RunAsync(CoreDispatcherPriority.Low,
                        () => PasswordBox.Focus(FocusState.Programmatic)));
        }
    }
}