using System;
using System.Text;
using System.Windows;
using System.Windows.Input;
using System.Security.Cryptography;

namespace SicUI
{
    /// <summary>
    /// WinDataView.xaml 的交互逻辑
    /// </summary>
    public partial class EditorPassCheckView : Window
    {
        private string _sPassword = "";

        public EditorPassCheckView()
        {
            
        }
        
        //
        public string Password { get
            {
                return _sPassword; }
            set
            {
                _sPassword = value;
            }
                }
        

        public EditorPassCheckView(Object obj)
        {
            InitializeComponent();
            //
            txtPass.Focus();

        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            ToCheck();
        }
        
        private void ToCheck()
        {
            var sPassword = txtPass.Password;
            if (sPassword.Length > 0)
            {
                if (CheckPass(sPassword))
                {
                    DialogResult = true;
                    Close();
                }
                else
                {
                    MessageBox.Show("Password incorrect!","Error", MessageBoxButton.OK,
                        MessageBoxImage.Error);
                }
            }
            else
            {
                MessageBox.Show("Please input password!","Error", MessageBoxButton.OK,
                    MessageBoxImage.Error);
            }
        }

        private bool CheckPass(string sPassword)
        {
            MD5 m = MD5.Create();
            byte[] bPass = Encoding.UTF8.GetBytes(sPassword);
            byte[] md5bPass = m.ComputeHash(bPass);
            string sPass = "";
            for(int i=0;i<md5bPass.Length;i++)
            {
                sPass += md5bPass[i].ToString("X2");
            }

            return  sPass == Password;
        }

        private void txtPass_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                ToCheck();
            }
        }
    }
}