CountDown/MainWindow.xaml.cs

using System;
using System.Diagnostics.Eventing.Reader;
using System.Globalization;
using System.Text;
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 System.Windows.Threading;
using Microsoft.Extensions.Configuration;


namespace CountDown;

/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{

    public DateTime EventDate { get; set; }
    private DispatcherTimer _timer;
    readonly CultureInfo _enUS = new ("en-US");
    public TimeSpan Counter
    {
        get { return (TimeSpan)GetValue(CounterProperty); }
        set { SetValue(CounterProperty, value); }
    }

    public static readonly DependencyProperty CounterProperty =
        DependencyProperty.Register(nameof(Counter), typeof(TimeSpan), typeof(MainWindow), new PropertyMetadata(new TimeSpan(0, 0, 0)));


    public MainWindow()
    {
        InitializeComponent();

        DataContext = this;

       
        
        var dateString = App.Config?.GetChildren().FirstOrDefault(c => c.Key == "EventDate")?.Value ?? "2025-06-30 23:59:59";
        if (DateTime.TryParseExact(dateString, "yyyy-MM-dd HH:mm:s", _enUS,
                                 DateTimeStyles.None, out DateTime dateValue))
        {
            EventDate = dateValue;
        }
        else
        {
            EventDate = new DateTime(2025, 06, 30, 23, 59, 59, DateTimeKind.Local);
        }

        Left = System.Windows.SystemParameters.PrimaryScreenWidth - Width - 20;
        Top = System.Windows.SystemParameters.PrimaryScreenHeight - Height - 100;
        Topmost = true;

        BitmapImage image = new (new Uri("./background.png", UriKind.Relative));
        ImageBrush fond = new (image);
        this.Background = fond;

        _timer = new();
        _timer.Interval = new TimeSpan(0, 0, 1);
        _timer.Tick += TimerTicked;
        _timer.Start();
    }

    private void SetTime()
    {
        Counter = EventDate - DateTime.Now;
    }

    private void TimerTicked(object? sender, EventArgs e)
    {
        SetTime();
    }


}