using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using YouTubeViewers.Domain.Commands;
using YouTubeViewers.Domain.Queries;
using YouTubeViewers.EntityFramework;
using YouTubeViewers.EntityFramework.Commands;
using YouTubeViewers.EntityFramework.Queries;
using YouTubeViewers.WPF.Stores;
using YouTubeViewers.WPF.ViewModels;
using YouTubeViewers.WPF.HostBuilders;

namespace YouTubeViewers.WPF;

public partial class App : Application
{

    private readonly IHost _host;

    public App()
    {
        _host = Host.CreateDefaultBuilder()
            .AddDbContext()
            .ConfigureServices((context, services) =>
            {
                services.AddSingleton<IGetAllYouTubeViewersQuery,GetAllYouTubeViewersQuery>();
                services.AddSingleton<ICreateYouTubeViewerCommand,CreateYouTubeViewerCommand>();
                services.AddSingleton<IUpdateYouTubeViewerCommand,UpdateYouTubeViewerCommand>();
                services.AddSingleton<IDeleteYouTubeViewerCommand,DeleteYouTubeViewerCommand>();

                services.AddSingleton<ModalNavigationStore>();
                services.AddSingleton<YouTubeViewersStore>();
                services.AddSingleton<SelectedYouTubeViewerStore>();

                services.AddTransient<YouTubeViewersViewModel>(CreateYouTubeViewersViewModel);
                services.AddSingleton<MainViewModel>();

                services.AddSingleton<MainWindow>((services) => new MainWindow()
                {
                    DataContext = services.GetRequiredService<MainViewModel>()
                });
            })
            .Build();

    }


    protected override void OnStartup(StartupEventArgs e)
    {
        _host.Start();

        var youTubeViewersDbContextFactory = _host.Services.GetRequiredService<YouTubeViewersDbContextFactory>();
        using (YouTubeViewersDbContext context = youTubeViewersDbContextFactory.Create())
        {
            //context.Database.EnsureCreated();
            context.Database.Migrate();
        }

        MainWindow = _host.Services.GetRequiredService<MainWindow>();
        MainWindow.Show();

        base.OnStartup(e);
    }

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

    private YouTubeViewersViewModel CreateYouTubeViewersViewModel(IServiceProvider services)
    {
        return YouTubeViewersViewModel.LoadViewModel(
            services.GetRequiredService<YouTubeViewersStore>(),
            services.GetRequiredService<SelectedYouTubeViewerStore>(),
            services.GetRequiredService<ModalNavigationStore>());
    }

}