using System;
using System.Threading.Tasks;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.VisualTree;
using Plombir;
using LauncherGUI.ViewModels;
using System.Threading;

namespace LauncherGUI.Views;

public partial class LoadingWindow : Window
{
    private Launcher ln;
    private Task? _buildingTask;
    private readonly MainWindowViewModel _mainWindowVM;

    // Tokens for controlling download task.
    CancellationTokenSource tokenSource = new CancellationTokenSource();
    public LoadingWindow(MainWindowViewModel mainWindowVM)
    {
        _mainWindowVM = mainWindowVM;
        ln = new Launcher(_mainWindowVM.SelectedVersion ?? "1.20.1", _mainWindowVM.RuntimeLocation ?? "./runtime");
        InitializeComponent();
        DataContext = new LoadingWindowViewModel();
    }

    public async Task InitLoading()
    {
        var viewModel = DataContext as LoadingWindowViewModel;
        if (viewModel == null)
        {
            throw new InvalidOperationException("No DataContext set");
        }

        Task updateGui = new Task(async () =>
        {
            while (ln.DownloadStatus != "Finished!")
            {
                viewModel.Progress = ln.DownloadProgress;
                viewModel.LoadingStatus = ln.DownloadStatus ?? "Looking at qubits...";
                await Task.Delay(1000);
            }
            viewModel.Progress = 100;
        });

        updateGui.Start();


        _buildingTask = ln.BuildLauncher(tokenSource.Token);

        await _buildingTask;


    }

    public async Task RunMinecraft(bool IsLicensed)
    {
        var session = ln.CreateOfflineSession(_mainWindowVM.Usernick);
        if (IsLicensed)
        {
            session = ln.CreateLicensedSession(_mainWindowVM.UUID, _mainWindowVM.AccsesToken, _mainWindowVM.Usernick);
        }
        await ln.RunLauncher(session);
    }

    private void onStopDownloadClick(object sender, RoutedEventArgs e)
    {
        var button = sender as Button;
        tokenSource.Cancel();
        System.Console.WriteLine("Loading disabled gracefully.");
        Close();
    }
}