first commit

README.md

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+# Plombir Launcher
+
+Small launcher for vanilla minecraft!
+
+## WIP

src/Launcher/.gitignore

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+/bin
+/minecraft
+/obj
+/publish
+/.vscode
+*.env

src/Launcher/Launcher.cs

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+using System.Formats.Tar;
+using System.Net;
+using System.Runtime.InteropServices;
+using System.Security.AccessControl;
+using CmlLib.Core;
+using CmlLib.Core.Auth;
+using CmlLib.Core.ProcessBuilder;
+
+namespace BlightFlame
+{
+    /*
+        Basically a class to manage everything launcher related.
+        TODO - minecraft downloading from webserver
+    */
+    public class Launcher
+    {
+        private readonly string _version;
+        private readonly string _nickname;
+        static private MinecraftPath _mcPath;
+        static private MinecraftLauncher _mcLauncher;
+
+        public int DownloadProgress;
+        public string DownloadStatus;
+
+        public Launcher(string userName, string version)
+        {
+            _version = version;
+            _nickname = userName;
+            _mcPath = new($"./runtime/{version}/minecraft");
+            _mcLauncher = new(_mcPath);
+        }
+
+        // Using it for forge loading because i don't know event-based async.
+        //static TaskCompletionSource<bool> tcs = new();
+
+
+        // Not used. Because launcher supports only VANILLA.
+        // public async Task FetchMinecraft()
+        // {
+
+        //     string archieve = "mc-archieve.tar.xz";
+        //     string runtimePath = "runtime";
+
+        //     System.Uri download_uri = new("https://dixxe.top/static/distro/cmllibcore-minecraft-forge-1201.tar.xz");
+        //     WebClient client = new();
+            
+        //     if ((!File.Exists(archieve)) && (!Directory.Exists(runtimePath)))
+        //     {
+        //         DownloadStatus = "Fetching deploy-minecraft from host...";
+        //         Console.WriteLine(DownloadStatus);
+
+        //         // Implement async download
+        //         client.DownloadFileAsync(download_uri, archieve);
+        //         client.DownloadDataCompleted += (o, e) =>
+        //         {
+        //             DownloadStatus = "Download completed";
+        //             Console.WriteLine(DownloadStatus);
+        //         };
+        //         client.DownloadProgressChanged += (o, e) =>
+        //         {
+        //             // Curentlly this scope doing nothing
+        //             Console.WriteLine($"{e.ProgressPercentage}% downloaded");
+        //             DownloadProgress = e.ProgressPercentage;
+        //             DownloadStatus = "Fetching modpack...";
+
+        //             if (DownloadProgress == 100)
+        //             {
+        //                 tcs.SetResult(true);
+        //             }
+
+        //         };
+        //         // Waiting for archieve to download.
+        //         await tcs.Task;
+        //     }
+            
+        //     DownloadStatus = "Unarchiving modpack...";
+        //     unarchiveMinecraft(archieve, runtimePath);
+
+        // }
+
+        // Not used. Because launcher supports only VANILLA.
+        // private void unarchiveMinecraft(string archieveName, string path)
+        // {
+        //     if (Directory.Exists(path)) { return; }
+        //     Console.WriteLine(DownloadStatus);
+        //     Directory.CreateDirectory(path);
+        //     Utils.UnzipTarGzFile(archieveName, path);
+
+        //     if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux)) 
+        //     {
+        //         Utils.LinuxExec($"chmod -R +x {path}/");
+        //         Console.WriteLine("Execute permissions added successfully.");
+        //     }
+
+        //     File.Delete(archieveName);
+        // }
+        
+        async public Task BuildLauncher() 
+        {
+            
+            
+            _mcLauncher.ByteProgressChanged += (_, args) =>
+            {
+                Console.WriteLine($"{(int)(args.ProgressedBytes * 0.000001)} MBytes / {(int)(args.TotalBytes * 0.000001)} MBytes");
+                DownloadProgress = (int)(args.ProgressedBytes * 100 / args.TotalBytes);
+            };
+            
+            // Before installAsync I should fetch lightweight minecraft instance from webserver
+            // Then installAsync will download any runtime needed stuff.
+            // This method is FetchMinecraft()
+            // Currently this is only one viable option for forge installations.
+            // But it requires server, so forge (and all mod loaders) is disabled.
+            //await FetchMinecraft();
+            
+            DownloadStatus = "Installing minecraft...";
+            Console.WriteLine(DownloadStatus);
+            await _mcLauncher.InstallAsync(_version);
+            DownloadStatus = "Finished!";
+            Console.WriteLine(DownloadStatus);
+        }
+
+        async public Task RunLauncher() 
+        {
+            var process = await _mcLauncher.BuildProcessAsync(_version, new MLaunchOption{
+                
+                Session = MSession.CreateOfflineSession(_nickname),
+                MaximumRamMb = 4096,
+
+            }) ?? throw new Exception("Failed to start minecraft process!");
+            
+            var processUtil = new ProcessWrapper(process);
+            processUtil.OutputReceived += (s, e) => Console.WriteLine(e);
+            processUtil.StartWithEvents();
+            
+            await processUtil.WaitForExitTaskAsync();
+        }
+
+    }
+}
+

src/Launcher/Program.cs

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+namespace BlightFlame
+{
+    sealed class Program 
+    {
+        public static void Main()
+        {
+            Console.WriteLine("init: launcher");
+        }
+    }
+}

src/Launcher/Utils.cs

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+using System.IO.Compression;
+using System;
+using System.IO;
+using SharpCompress.Archives;
+using SharpCompress.Common;
+using SharpCompress.Readers;
+using System.Diagnostics;
+using CmlLib.Core;
+
+namespace BlightFlame
+{
+    static public class Utils
+    {
+        public static void UnzipTarGzFile(string filePath, string destinationPath)
+        {
+            using (Stream stream = File.OpenRead(filePath))
+            {
+                using (var reader = ReaderFactory.Open(stream))
+                {
+                    while (reader.MoveToNextEntry())
+                    {
+                        if (!reader.Entry.IsDirectory)
+                        {
+                            reader.WriteEntryToDirectory(destinationPath, new ExtractionOptions()
+                            {
+                                ExtractFullPath = true,
+                                Overwrite = true
+                            });
+                        }
+                    }
+                }
+            }
+        }
+
+        public static void LinuxExec(string cmd)
+        {
+            var escapedArgs = cmd.Replace("\"", "\\\"");
+                
+            using var process = new Process
+            {
+                StartInfo = new ProcessStartInfo
+                {
+                    RedirectStandardOutput = true,
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                    WindowStyle = ProcessWindowStyle.Hidden,
+                    FileName = "/bin/bash",
+                    Arguments = $"-c \"{escapedArgs}\""
+                }
+            };
+
+            process.Start();
+            process.WaitForExit();
+        }
+
+        public static async Task<List<string>> GetAllMcVersions()
+        {
+            return await Task.Run(async() => {
+                var ln = new MinecraftLauncher();
+                var result = new List<string>();
+                foreach (var x in await ln.GetAllVersionsAsync())
+                {
+                    result.Add(x.Name);
+                }
+                return result;
+            });
+            
+        }
+
+
+
+    }
+    
+}

src/Launcher/cmllibLauncher.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>exe</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <PublishSingleFile>true</PublishSingleFile>
+    <EnableCompressionInSingleFile>true</EnableCompressionInSingleFile>
+
+    <IsAotCompatible>false</IsAotCompatible>
+
+  </PropertyGroup>
+  <ItemGroup>
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="CmlLib.Core" Version="4.0.4" />
+    <PackageReference Include="SharpCompress" Version="0.39.0" />
+  </ItemGroup>
+
+  
+
+</Project>

src/LauncherGUI/.gitignore

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+/bin
+/runtime
+/obj
+/publish
+/.vscode
+*.env

src/LauncherGUI/App.axaml

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+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="LauncherGUI.App"
+             xmlns:local="using:LauncherGUI"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.DataTemplates>
+        <local:ViewLocator/>
+    </Application.DataTemplates>
+  
+    <Application.Styles>
+        <FluentTheme />
+    </Application.Styles>
+
+    <Application.Resources>
+        <FontFamily x:Key="QuicksandFont">avares://LauncherGUI/Assets/Fonts/Quicksand-SemiBold.ttf#Quicksand</FontFamily>
+    </Application.Resources>
+    
+</Application>

src/LauncherGUI/App.axaml.cs

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+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Data.Core;
+using Avalonia.Data.Core.Plugins;
+using System.Linq;
+using Avalonia.Markup.Xaml;
+using LauncherGUI.ViewModels;
+using LauncherGUI.Views;
+
+namespace LauncherGUI;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            // Avoid duplicate validations from both Avalonia and the CommunityToolkit. 
+            // More info: https://docs.avaloniaui.net/docs/guides/development-guides/data-validation#manage-validationplugins
+            DisableAvaloniaDataAnnotationValidation();
+            desktop.MainWindow = new MainWindow
+            {
+                DataContext = new MainWindowViewModel(),
+            };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+
+    private void DisableAvaloniaDataAnnotationValidation()
+    {
+        // Get an array of plugins to remove
+        var dataValidationPluginsToRemove =
+            BindingPlugins.DataValidators.OfType<DataAnnotationsValidationPlugin>().ToArray();
+
+        // remove each entry found
+        foreach (var plugin in dataValidationPluginsToRemove)
+        {
+            BindingPlugins.DataValidators.Remove(plugin);
+        }
+    }
+}

src/LauncherGUI/LauncherGUI.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Models\" />
+    <AvaloniaResource Include="Assets\**" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Desktop" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Fonts.Inter" Version="11.2.1" />
+    <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+    <PackageReference Include="Avalonia.Diagnostics" Version="11.2.1">
+      <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
+      <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Launcher\cmllibLauncher.csproj" />
+  </ItemGroup>
+</Project>

src/LauncherGUI/Program.cs

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+using Avalonia;
+using BlightFlame;
+using System;
+
+namespace LauncherGUI;
+
+sealed class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace();
+}

src/LauncherGUI/ViewLocator.cs

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+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using LauncherGUI.ViewModels;
+
+namespace LauncherGUI;
+
+public class ViewLocator : IDataTemplate
+{
+
+    public Control? Build(object? param)
+    {
+        if (param is null)
+            return null;
+        
+        var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
+        var type = Type.GetType(name);
+
+        if (type != null)
+        {
+            return (Control)Activator.CreateInstance(type)!;
+        }
+        
+        return new TextBlock { Text = "Not Found: " + name };
+    }
+
+    public bool Match(object? data)
+    {
+        return data is ViewModelBase;
+    }
+}

src/LauncherGUI/ViewModels/LoadingWindowViewModel.cs

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+namespace LauncherGUI.ViewModels;
+
+public partial class LoadingWindowViewModel : ViewModelBase
+{
+    private long _loadingProgress;
+    public long Progress {get => _loadingProgress; set {_loadingProgress = value; OnPropertyChanged(nameof(Progress)); }}
+
+    private string _loadingStatus = "Rotating transistors..";
+    public string LoadingStatus {get => _loadingStatus; set {_loadingStatus = value; OnPropertyChanged(nameof(LoadingStatus)); }}
+}

src/LauncherGUI/ViewModels/MainWindowViewModel.cs

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+using System.Collections.Generic;
+using BlightFlame;
+
+namespace LauncherGUI.ViewModels;
+
+public partial class MainWindowViewModel : ViewModelBase
+{
+    public string Greeting { get; } = "Plombir launcher";
+
+    private string _userNick = "slugcat";
+    public string Usernick {get => _userNick; set {_userNick = value; OnPropertyChanged(nameof(Usernick)); }}
+
+    private string _selectedVersion = "1.20.1";
+    public string SelectedVersion {get => _selectedVersion; set {_selectedVersion = value; OnPropertyChanged(nameof(SelectedVersion)); }}
+}

src/LauncherGUI/ViewModels/VersionSelectorWindowViewModel.cs

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+using System.Collections.Generic;
+using BlightFlame;
+using LauncherGUI.ViewModels;
+
+namespace LauncherGUI.ViewModels;
+
+public partial class VersionSelectorWindowViewModel : ViewModelBase
+{
+    
+}

src/LauncherGUI/ViewModels/ViewModelBase.cs

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+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace LauncherGUI.ViewModels;
+
+public class ViewModelBase : ObservableObject
+{
+}

src/LauncherGUI/Views/LoadingWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:LauncherGUI.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="200"
+        x:Class="LauncherGUI.Views.LoadingWindow"
+        x:DataType="vm:LoadingWindowViewModel"
+        Icon="/Assets/icon.png"
+        Title="loading"
+        RequestedThemeVariant="Dark"
+        Width="400" Height="200"
+        MinWidth="400" MinHeight="200"
+        MaxWidth="400" MaxHeight="200"
+        Background="#353535">
+
+    <Design.DataContext>
+        <!-- This only sets the DataContext for the previewer in an IDE,
+             to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
+        <vm:LoadingWindowViewModel/>
+    </Design.DataContext>
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="50"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="50"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*"/>  
+        </Grid.ColumnDefinitions>
+
+        <TextBlock Text="Loading minecraft..."
+            FontFamily="{StaticResource QuicksandFont}" 
+            HorizontalAlignment="Center"
+            Grid.Row="0" Grid.ColumnSpan="2"/>
+
+        <Border 
+            Grid.Row="1" Grid.Column="1"
+            HorizontalAlignment="Center"
+            VerticalAlignment="Center">
+            <TextBlock Text="{Binding LoadingStatus}"/>
+        </Border>
+
+        <Border 
+            Margin="10"
+            Grid.Row="2" Grid.ColumnSpan="2">
+            <ProgressBar 
+                Minimum="0"
+                Value="{Binding Progress}"
+                Maximum="100"/>
+        </Border>
+
+    </Grid>
+
+    
+    
+</Window>

src/LauncherGUI/Views/LoadingWindow.axaml.cs

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+using System;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.VisualTree;
+using BlightFlame;
+using LauncherGUI.ViewModels;
+
+namespace LauncherGUI.Views;
+
+public partial class LoadingWindow : Window
+{
+    private Launcher ln;
+    public LoadingWindow(string nickname, string? version = null)
+    {
+        ln = new Launcher(nickname, version ?? "1.20.1");
+        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;
+                await Task.Delay(1000);
+            }
+            viewModel.Progress = 100;
+        });
+        updateGui.Start();
+
+        await ln.BuildLauncher();
+
+        
+
+    }
+
+    public async Task RunMinecraft()
+    {
+        await ln.RunLauncher();
+    }
+}

src/LauncherGUI/Views/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:LauncherGUI.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="750" d:DesignHeight="500"
+        x:Class="LauncherGUI.Views.MainWindow"
+        x:DataType="vm:MainWindowViewModel"
+        Icon="/Assets/icon.png"
+        Title="PlombirLauncher"
+        RequestedThemeVariant="Dark"
+        Width="750" Height="500"
+        MinWidth="750" MinHeight="500"
+        MaxWidth="750" MaxHeight="500">
+
+    <Window.Background>
+        <ImageBrush Source="/Assets/background.jpg" Stretch="UniformToFill"/>
+    </Window.Background>
+
+    <Design.DataContext>
+        <!-- This only sets the DataContext for the previewer in an IDE,
+             to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
+        <vm:MainWindowViewModel/>
+    </Design.DataContext>
+    
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="50"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+    
+       
+        <StackPanel
+            HorizontalAlignment="Center"
+            Grid.Row="0" Grid.ColumnSpan="3" >
+            <Border
+                Width="500"
+                Background="#353535" 
+                Padding="10" Margin="3"
+                CornerRadius="10">
+
+                <Image Source="/Assets/title.png" 
+                    Stretch="Uniform"/>
+
+            </Border>
+            <TextBlock FontFamily="{StaticResource QuicksandFont}" 
+                HorizontalAlignment="Right" Text="v1.0.0 - nullmax17"/>
+        </StackPanel>
+
+            
+        
+        <StackPanel 
+            VerticalAlignment="Center" 
+            HorizontalAlignment="Center"
+            Grid.Row="1" Grid.Column="0">
+            <Border
+                Background="#353535"
+                HorizontalAlignment="Center"
+                Width="150"
+                CornerRadius="10"
+                Padding="15">
+
+                <Button FontFamily="{StaticResource QuicksandFont}" Content="Launch MC" Click="OnLaunchMinecraftClick" HorizontalAlignment="Center"/>
+
+            </Border>
+            
+            <Border
+                Background="#353535"
+                HorizontalAlignment="Center"
+                Width="250"
+                CornerRadius="10"
+                Padding="15" Margin="15">
+                <StackPanel>
+                    <TextBlock 
+                        HorizontalAlignment="Center" 
+                        Text="Insert username:"
+                        FontFamily="{StaticResource QuicksandFont}"/>
+                    <TextBox Margin="5" Text="{Binding Usernick, Mode=TwoWay}" Width="200" />
+
+                </StackPanel>
+            </Border>
+
+            <Border
+                Background="#353535"
+                HorizontalAlignment="Center"
+                Width="150"
+                CornerRadius="10"
+                Padding="10">
+
+                <Button
+                    FontFamily="{StaticResource QuicksandFont}"
+                    Content="Choose version"
+                    Click="OnChooseVersionClick"
+                    HorizontalAlignment="Center"/>
+            </Border>
+        </StackPanel>
+
+        <Border
+            Background="#353535"
+            HorizontalAlignment="Center"
+            Width="305"
+            Height="300"
+            CornerRadius="10"
+            Padding="15" Margin="15"
+            Grid.Row="1" Grid.Column="2">
+            
+            <StackPanel>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Text="> Cross-platform minecraft launcher!"/>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Height="50" Text="> Fully open-source and privacy focused!"/>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Text="To use it:"/>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Text="1. Choose desired nickname."/>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Text="2. Choose desired minecraft version."/>
+                <TextBlock FontFamily="{StaticResource QuicksandFont}" Height="50" Text="3. Launch minecraft!"/>
+            </StackPanel>
+            
+        </Border>
+    </Grid>
+    
+</Window>

src/LauncherGUI/Views/MainWindow.axaml.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.VisualTree;
+using BlightFlame;
+using CmlLib.Core.VersionMetadata;
+using LauncherGUI.ViewModels;
+
+namespace LauncherGUI.Views;
+
+public partial class MainWindow : Window
+{
+
+    public MainWindow()
+    {
+        InitializeComponent();
+        DataContext = new MainWindowViewModel();
+        if (DataContext == null) throw new NullReferenceException("Cant load MainWindow DataContext");
+    }
+    private async void OnLaunchMinecraftClick(object sender, RoutedEventArgs e)
+    {
+
+        var button = sender as Button;
+        if (button == null) return;
+
+        var root = button.GetVisualRoot() as MainWindow;
+        if (root == null) return;
+        
+        var vm = DataContext as MainWindowViewModel;
+        LoadingWindow loading = new(vm.Usernick, vm.SelectedVersion);
+        loading.Show(root);
+        await loading.InitLoading();
+        loading.Close();
+        button.Content = "Minecraft launched";
+        await loading.RunMinecraft();
+        
+    }
+
+    private void OnChooseVersionClick(object sender, RoutedEventArgs e)
+    {
+
+        var button = sender as Button;
+        if (button == null) return;
+
+        var root = button.GetVisualRoot() as MainWindow;
+        if (root == null) return;
+
+        VersionSelectorWindow selector = new(DataContext as MainWindowViewModel);
+        selector.Show(root);
+    }
+
+}

src/LauncherGUI/Views/VersionSelectorWindow.axaml

@@ -0,0 +1,28 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:LauncherGUI.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="200"
+        x:Class="LauncherGUI.Views.VersionSelectorWindow"
+        x:DataType="vm:VersionSelectorWindowViewModel"
+        Icon="/Assets/icon.png"
+        Title="Select version"
+        RequestedThemeVariant="Dark"
+        Width="600" Height="500"
+        MinWidth="600" MinHeight="500"
+        MaxWidth="600" MaxHeight="500"
+        Background="#353535">
+        
+        <StackPanel>
+        <ListBox x:Name="versions" Height="499" SelectionChanged="OnSelectionChanged">
+        <ListBox.ItemTemplate>
+            <DataTemplate>
+            <TextBlock Text="{Binding}"/>
+            </DataTemplate>
+        </ListBox.ItemTemplate>
+        </ListBox>
+    </StackPanel>
+        
+
+</Window>

src/LauncherGUI/Views/VersionSelectorWindow.axaml.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Threading;
+using LauncherGUI.ViewModels;
+
+namespace LauncherGUI.Views;
+
+public partial class VersionSelectorWindow : Window
+{
+    private MainWindowViewModel _mainViewModel;
+    public VersionSelectorWindow(MainWindowViewModel mainViewModel)
+    {
+        InitializeComponent(); 
+        _mainViewModel = mainViewModel;
+
+        //Load versions asynchronously
+        var versionsList = Task.Run(() => BlightFlame.Utils.GetAllMcVersions().GetAwaiter().GetResult()); 
+        
+        versions.ItemsSource = versionsList.Result;
+        
+    }
+
+    private async void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+    {
+        var selectedVersion = versions.SelectedItem as string ?? throw new NullReferenceException("Null version selected!");
+
+        _mainViewModel.SelectedVersion = selectedVersion;
+
+        
+        System.Console.WriteLine($"Selected version: {selectedVersion}");
+        
+        LoadingWindow loading = new(_mainViewModel.Usernick, _mainViewModel.SelectedVersion);
+        loading.Show(this);
+        await loading.InitLoading();
+        loading.Close();
+        this.Close();
+        await loading.RunMinecraft();;
+
+
+    }
+}

src/LauncherGUI/app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embedded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="LauncherGUI.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>