using DaSaSo.Domain.Model;
using DaSaSo.Domain.Services;
using DaSaSo.Domain.Services.BuildingsiteServices;
using DaSaSo.Domain.Services.ProjectServices;
using DaSaSo.Domain.Services.SewerObjectService;
using DaSaSo.EntityFramework;
using DaSaSo.EntityFramework.Services;
using DaSaSo.Wpf.ViewModel;
using DaSaSo.Wpf.ViewModel.Factories;
using DaSaSo.Wpf.ViewModel.Interface;
using DaSaSo.Wpf.ViewModel.State.ActualState;
using DaSaSo.Wpf.ViewModel.State.Navigation;
using DaSaSo.Wpf.HostBuilders;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Windows;

namespace DaSaSo.Wpf
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : Application
    {
        private readonly IHost _host;
        public App()
        {
            _host = CreateHostBuilder().Build();
        }

        public static IHostBuilder CreateHostBuilder(string[]? args = null)
        {
            return Host.CreateDefaultBuilder(args)
                .AddConfiguration()
                .AddServices()
                .AddViewModels()
                .AddStores()
                .AddDBContext();
        }

         
        protected override void OnStartup(StartupEventArgs e)
        {
            Application.Current.DispatcherUnhandledException += Current_DispatcherUnhandledException;
            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;

            _host.Start();

            DaSaSoDbContextFactory contextFactory = _host.Services.GetRequiredService<DaSaSoDbContextFactory>();
            using (DaSaSoDbContext context = contextFactory.CreateDbContext())
            {
                context.Database.Migrate();
                
            }
            MainWindow? window = new MainWindow() { DataContext = _host.Services.GetRequiredService<MainWindowViewModel>() };
            window.Show();

            
            
            base.OnStartup(e);
        }

        protected override  async void OnExit(ExitEventArgs e)
        {
            await _host.StopAsync();
            _host.Dispose();
            base.OnExit(e);
        }

        private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            try
            {
                Exception ex = (Exception)e.ExceptionObject;
                string text = "An application error occured. Please contact the Administrator with the following information:\n\n";
                MessageBox.Show(text + " " + ex.Message + "\n\n" + ex.StackTrace);
            }
            catch(Exception ex2)
            {
                MessageBox.Show("Fatal Non-UI error", ex2.Message, MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }

        private void Current_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
        {
            throw new NotImplementedException();
        }

    }
}