using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using static Tango.SharedUI.Controls.MultiTransitionControl;
using SimpleValidator.Extensions;
using Tango.Settings;
using Tango.Core.Cryptography;

namespace Tango.MachineStudio.UI.Views
{
    /// <summary>
    /// Interaction logic for LoginView.xaml
    /// </summary>
    public partial class LoginView : UserControl, ITransitionView
    {
        private Rfc2898Cryptographer cryptographer;

        public LoginView()
        {
            InitializeComponent();

            cryptographer = new Rfc2898Cryptographer();
        }

        public String Password
        {
            get { return (String)GetValue(PasswordProperty); }
            set { SetValue(PasswordProperty, value); }
        }
        public static readonly DependencyProperty PasswordProperty =
            DependencyProperty.Register("Password", typeof(String), typeof(LoginView), new PropertyMetadata(null));

        public void OnTransitionCompleted()
        {
            txtEmail.Focus();

            if (txtEmail.Text.IsNotNullOrWhiteSpace())
            {
                txtPass.Focus();
            }

            txtPass.Password = cryptographer.Decrypt(SettingsManager.Default.MachineStudio.LastLoginPassword);
        }

        private void txtPass_PasswordChanged(object sender, RoutedEventArgs e)
        {
            Password = txtPass.Password;
        }
    }
}