using System.Windows;
using System.Windows.Threading;
using SpdUp.Core;

namespace SpdUp;

/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        // Global exception handlers
        DispatcherUnhandledException += OnDispatcherUnhandledException;
        AppDomain.CurrentDomain.UnhandledException += OnDomainUnhandledException;
        TaskScheduler.UnobservedTaskException += OnUnobservedTaskException;

        // Enable required privileges early
        NativeMethods.EnablePrivilege(NativeMethods.SE_DEBUG_NAME);
        NativeMethods.EnablePrivilege(NativeMethods.SE_PROF_SINGLE_PROCESS_NAME);
        NativeMethods.EnablePrivilege(NativeMethods.SE_INC_BASE_PRIORITY_NAME);

        Logger.Info("SpdUp application starting.");
    }

    private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
    {
        Logger.Error("Unhandled UI exception", e.Exception);
        MessageBox.Show($"An unexpected error occurred:\n{e.Exception.Message}",
            "SpdUp Error", MessageBoxButton.OK, MessageBoxImage.Error);
        e.Handled = true;
    }

    private static void OnDomainUnhandledException(object sender, UnhandledExceptionEventArgs e)
    {
        if (e.ExceptionObject is Exception ex)
            Logger.Error("Unhandled domain exception", ex);
    }

    private static void OnUnobservedTaskException(object? sender, UnobservedTaskExceptionEventArgs e)
    {
        Logger.Error("Unobserved task exception", e.Exception);
        e.SetObserved();
    }
}