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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;
using System.Windows.Threading;
namespace TwoStepsAuthenticatorTestApp
{
public class ViewModel : INotifyPropertyChanged
{
private string key;
public string Key
{
get
{
return key;
}
set
{
if (key != value)
{
key = value;
RaisePropertyChanged("Key");
}
}
}
private string code;
public string Code
{
get
{
return code;
}
set
{
if (code != value)
{
code = value;
RaisePropertyChanged("Code");
GetCode();
}
}
}
private int count;
public int Count
{
get
{
return count;
}
set
{
if (count != value)
{
count = value;
if (count < 0)
{
count = 30;
GetCode();
}
RaisePropertyChanged("Count");
}
}
}
DispatcherTimer timer;
public ViewModel()
{
var auth = new TwoStepsAuthenticator.Authenticator();
this.Key = auth.GenerateKey();
timer = new DispatcherTimer(TimeSpan.FromSeconds(1), DispatcherPriority.Normal, timerCallback, App.Current.Dispatcher);
//timer.Elapsed += timer_Elapsed;
timer.Start();
}
private void timerCallback(object sender, EventArgs e)
{
Count--;
}
public event PropertyChangedEventHandler PropertyChanged;
private void RaisePropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
internal void GetCode()
{
var auth = new TwoStepsAuthenticator.Authenticator();
Code = auth.GetCode(this.Key);
}
}
}
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