using System;
using System.IO;
using Microsoft.UI.Xaml;

namespace LayersShell;

public partial class App : Application
{
    private MainWindow? _window;

    public App()
    {
        Log("App ctor enter");
        try
        {
            InitializeComponent();
            AppDomain.CurrentDomain.UnhandledException += (_, e) =>
                Log($"UnhandledException: {e.ExceptionObject}");
            UnhandledException += (_, e) =>
                Log($"XAML UnhandledException: {e.Exception}");
            Log("App ctor ok");
        }
        catch (Exception ex)
        {
            Log($"App ctor FAILED: {ex}");
            throw;
        }
    }

    protected override void OnLaunched(LaunchActivatedEventArgs args)
    {
        Log("OnLaunched enter");
        try
        {
            _window = new MainWindow();
            Log("MainWindow constructed");
            _window.Activate();
            Log("MainWindow activated");
        }
        catch (Exception ex)
        {
            Log($"OnLaunched FAILED: {ex}");
            throw;
        }
    }

    internal static void Log(string line)
    {
        try
        {
            var path = Path.Combine(Path.GetTempPath(), "layers-shell.log");
            File.AppendAllText(path, DateTime.Now.ToString("HH:mm:ss.fff ") + line + Environment.NewLine);
        }
        catch { }
    }
}