using Avalonia;
using Avalonia.Controls;
using Avalonia.Data;
using Avalonia.Interactivity;
using Avalonia.Platform.Storage;
using Avalonia.Threading;
using Mlaumcherb.Client.Avalonia.классы;
using Mlaumcherb.Client.Avalonia.холопы;

namespace Mlaumcherb.Client.Avalonia.зримое;

public partial class MainWindow : Window
{
    public static readonly StyledProperty<string> PlayerNameProperty =
        AvaloniaProperty.Register<MainWindow, string>(nameof(PlayerName),
            defaultBindingMode: BindingMode.TwoWay);
    public string PlayerName
    {
        get => GetValue(PlayerNameProperty);
        set => SetValue(PlayerNameProperty, value);
    }
    
    public static readonly StyledProperty<int> MemoryLimitProperty =
        AvaloniaProperty.Register<MainWindow, int>(nameof(MemoryLimit),
            defaultBindingMode: BindingMode.TwoWay, defaultValue: 2048);
    public int MemoryLimit
    {
        get => GetValue(MemoryLimitProperty);
        set => SetValue(MemoryLimitProperty, value);
    }
    
    public static readonly StyledProperty<bool> CheckGameFilesProperty =
        AvaloniaProperty.Register<MainWindow, bool>(nameof(CheckGameFiles),
            defaultBindingMode: BindingMode.TwoWay, defaultValue: false);
    public bool CheckGameFiles
    {
        get => GetValue(CheckGameFilesProperty);
        set => SetValue(CheckGameFilesProperty, value);
    }
    
    
    public static readonly StyledProperty<bool> EnableJavaDownloadProperty =
        AvaloniaProperty.Register<MainWindow, bool>(nameof(EnableJavaDownload),
            defaultBindingMode: BindingMode.TwoWay, defaultValue: true);
    public bool EnableJavaDownload
    {
        get => GetValue(EnableJavaDownloadProperty);
        set => SetValue(EnableJavaDownloadProperty, value);
    }
    
    public MainWindow()
    {
        InitializeComponent();
    }
    
    protected override async void OnLoaded(RoutedEventArgs e)
    {
        try
        {
            LauncherApp.Logger.OnLogMessage += GuiLogMessage;

            PlayerName = LauncherApp.Config.player_name;
            MemoryLimit = LauncherApp.Config.max_memory;
            EnableJavaDownload = LauncherApp.Config.download_java;

            VersionComboBox.SelectedIndex = 0;
            VersionComboBox.IsEnabled = false;
            var versions = await GameVersion.GetAllVersionsAsync();
            Dispatcher.UIThread.Invoke(() =>
            {
                foreach (var p in versions)
                {
                    VersionComboBox.Items.Add(new VersionItemView(p));
                    if (LauncherApp.Config.last_launched_version != null &&
                        p.Name == LauncherApp.Config.last_launched_version)
                        VersionComboBox.SelectedIndex = VersionComboBox.Items.Count - 1;
                }
                VersionComboBox.IsEnabled = true;
            });
        }
        catch (Exception ex)
        {
            ErrorHelper.ShowMessageBox(nameof(MainWindow), ex);
        }
    }

    private void GuiLogMessage(LauncherLogger.LogMessage msg)
    {
        if (msg.severity == LogSeverity.Debug) return;

        Dispatcher.UIThread.Invoke(() =>
        {
            double offsetFromBottom = LogScrollViewer.Extent.Height - LogScrollViewer.Offset.Y - LogScrollViewer.Viewport.Height;
            bool is_scrolled_to_end = offsetFromBottom < 20.0; // scrolled less then one line up 
            LogPanel.Children.Add(new LogMessageView(msg));
            if (is_scrolled_to_end) LogScrollViewer.ScrollToEnd();
        });
    }

    private async void Запуск(object? sender, RoutedEventArgs e)
    {
        try
        {
            Dispatcher.UIThread.Invoke(() => LaunchButton.IsEnabled = false);
            
            var selectedVersionView = (VersionItemView?)VersionComboBox.SelectedItem;
            var selectedVersion = selectedVersionView?.Props;
            LauncherApp.Config.last_launched_version = selectedVersion?.Name;
            LauncherApp.Config.player_name = PlayerName;
            LauncherApp.Config.max_memory = MemoryLimit;
            LauncherApp.Config.download_java = EnableJavaDownload;
            LauncherApp.Config.SaveToFile();
            if (selectedVersion == null) 
                return;
            
            var v = await GameVersion.CreateFromPropsAsync(selectedVersion);
            await v.UpdateFiles(CheckGameFiles, nt =>
                {
                    Dispatcher.UIThread.Invoke(() =>
                    {
                        DownloadsPanel.Children.Add(new NetworkTaskView(nt,
                            ntv => DownloadsPanel.Children.Remove(ntv)));
                    });
                }
            );
            Dispatcher.UIThread.Invoke(() =>
            {
                CheckGameFiles = false;
            });
            await v.Launch();
        }
        catch (Exception ex)
        {
            ErrorHelper.ShowMessageBox(nameof(MainWindow), ex);
        }
        finally
        {
            Dispatcher.UIThread.Invoke(() =>
            {
                LaunchButton.IsEnabled = true;
            });
        }
    }

    private void ОткрытьПапкуЛаунчера(object? s, RoutedEventArgs e)
    {
        try
        {
            Launcher.LaunchDirectoryInfoAsync(new DirectoryInfo(Directory.GetCurrent().ToString()))
                .ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            ErrorHelper.ShowMessageBox(nameof(MainWindow), ex);
        }
    }
    
    private void ОткрытьФайлЛогов(object? sender, RoutedEventArgs e)
    {
        try
        {
            Launcher.LaunchFileInfoAsync(new FileInfo(LauncherApp.Logger.LogfileName.ToString()))
                .ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            ErrorHelper.ShowMessageBox(nameof(MainWindow), ex);
        }
    }

    private void ОткрытьРепозиторий(object? sender, RoutedEventArgs e)
    {
        try
        {
            Launcher.LaunchUriAsync(new Uri("https://timerix.ddns.net:3322/Timerix/mlaumcherb"))
                .ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            ErrorHelper.ShowMessageBox(nameof(MainWindow), ex);
        }
    }

    private void ClearLogPanel(object? sender, RoutedEventArgs e)
    {
        LogPanel.Children.Clear();
    }
    
    
    private void ClearDownloadsPanel(object? sender, RoutedEventArgs e)
    {
        foreach (var control in DownloadsPanel.Children)
        {
            var nt = (NetworkTaskView)control;
            nt.Task.Cancel();
        }
        DownloadsPanel.Children.Clear();
    }
}