feat: initial commit

ui/controls/ChatUserControl.axaml

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+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="highminded.ui.controls.ChatUserControl">
+    
+        <Grid RowDefinitions="*,Auto" Margin="15" RowSpacing="10">
+            <HtmlPanel Grid.Row="0" Name="ResultBlock" BaseStylesheet="* { font: Inter; color: white; }" />
+            <TextBox Grid.Row="1" Name="PromptBox" CornerRadius="5" TextWrapping="Wrap"
+                     KeyDown="PromptBox_OnKeyDown" />
+        </Grid>
+    
+</UserControl>

ui/controls/ChatUserControl.axaml.cs

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+using Avalonia.Controls;
+using System;
+using System.ClientModel;
+using System.Text;
+using Avalonia.Input;
+using highminded.utils;
+using OpenAI.Chat;
+using OpenAI;
+using Markdig;
+using Markdown.ColorCode;
+
+namespace highminded.ui.controls;
+
+public partial class ChatUserControl : UserControl
+{
+    
+    // OpenAI
+    private readonly OpenAI.Chat.ChatClient _client = null!;
+    private readonly MarkdownPipeline _pipeline = null!; 
+    
+    public ChatUserControl()
+    {
+        InitializeComponent();
+        
+        _client = new ChatClient(
+            model: InMemoryDb.Obj.settingsManager.Settings.Model,
+            credential: new ApiKeyCredential(InMemoryDb.Obj.settingsManager.Settings.ApiKey),
+            options: new OpenAIClientOptions
+            {
+                Endpoint = new Uri(InMemoryDb.Obj.settingsManager.Settings.ApiURL)
+            });
+
+        _pipeline = new MarkdownPipelineBuilder().UseAdvancedExtensions().UseColorCode().Build(); 
+    }
+    
+    private async void PromptBox_OnKeyDown(object? sender, KeyEventArgs e)
+    {
+        try
+        {
+            if (e.Key != Key.Enter) return;
+
+            var prompt = PromptBox.Text;
+            if (prompt is null) return;
+            PromptBox.Clear();
+
+            AsyncCollectionResult<StreamingChatCompletionUpdate> completionUpdates =
+                _client.CompleteChatStreamingAsync(prompt);
+
+            var responseBuilder = new StringBuilder();
+
+            await foreach (var completionUpdate in completionUpdates)
+            {
+                if (completionUpdate.ContentUpdate.Count <= 0) continue;
+
+                var token = completionUpdate.ContentUpdate[0].Text;
+                responseBuilder.Append(token);
+
+                var html = Markdig.Markdown.ToHtml(responseBuilder.ToString(), _pipeline);
+                ResultBlock.Text = html;
+            }
+        }
+        catch (Exception err)
+        {
+            ResultBlock.Text = err.Message;
+        }
+    }
+}

ui/controls/SettingsUserControl.axaml

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+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="highminded.ui.controls.SettingsUserControl">
+
+    <Grid Margin="15" RowSpacing="10" ColumnSpacing="10" RowDefinitions="Auto,Auto,Auto" ColumnDefinitions="*,*">
+        
+        <StackPanel Grid.Row="0" Grid.Column="0">
+            <TextBlock Text="Model" />
+            <TextBox Name="ModelTextBox" />
+        </StackPanel>
+        
+        <StackPanel Grid.Row="0" Grid.Column="1">
+            <TextBlock Text="API URL" />
+            <TextBox Name="ApiUrlTextBox" />
+        </StackPanel>
+        
+        <StackPanel Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2">
+            <TextBlock Text="API Key" />
+            <TextBox Name="ApiKeyTextBox" PasswordChar="*" />
+        </StackPanel>
+        
+        <StackPanel Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2">
+            <Button Name="SaveSettingsBtn" Content="Save" Click="SaveSettingsBtn_OnClick"/>
+        </StackPanel> 
+        
+    </Grid>
+</UserControl>

ui/controls/SettingsUserControl.axaml.cs

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+using System;
+using System.Diagnostics;
+using System.Reflection;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using highminded.utils;
+
+namespace highminded.ui.controls;
+
+public partial class SettingsUserControl : UserControl
+{
+    public SettingsUserControl()
+    {
+        InitializeComponent();
+
+        ModelTextBox.Text = InMemoryDb.Obj.settingsManager.Settings.Model;
+        ApiUrlTextBox.Text = InMemoryDb.Obj.settingsManager.Settings.ApiURL;
+        ApiKeyTextBox.Text = InMemoryDb.Obj.settingsManager.Settings.ApiKey;
+    }
+
+    private void SaveSettingsBtn_OnClick(object? sender, RoutedEventArgs e)
+    {
+        InMemoryDb.Obj.settingsManager.Settings.Model = ModelTextBox.Text;
+        InMemoryDb.Obj.settingsManager.Settings.ApiURL= ApiUrlTextBox.Text;
+        InMemoryDb.Obj.settingsManager.Settings.ApiKey = ApiKeyTextBox.Text;
+       InMemoryDb.Obj.settingsManager.Save(); 
+    }
+}

ui/windows/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="highminded.ui.windows.MainWindow"
+        Title="highminded"
+        Height="600"
+        Width="800"
+        ShowInTaskbar="False"
+        ShowActivated="True"
+        Topmost="True"
+        WindowStartupLocation="CenterScreen"
+        SystemDecorations="None"
+        TransparencyLevelHint="Transparent"
+        Background="Transparent"
+        Foreground="#fff"
+        TransparencyBackgroundFallback="Transparent"
+        FontSize="16">
+    <Grid RowDefinitions="Auto,*" Margin="5" RowSpacing="10">
+        <Border Grid.Row="0" CornerRadius="5" Background="Black" Opacity="0.8" PointerPressed="OnPointerPressed">
+            <Grid ColumnDefinitions="*,Auto" Margin="15 10">
+                <TextBlock Grid.Column="0" VerticalAlignment="Center" Margin="5">High Minded</TextBlock>
+                <StackPanel Grid.Column="1" Orientation="Horizontal" VerticalAlignment="Center"
+                            HorizontalAlignment="Center">
+                    <Border Background="Black" BorderBrush="#19ffffff" BorderThickness="2" CornerRadius="5"
+                            Margin="0 0 10 0">
+                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center"
+                                    Spacing="5" Margin="10 0">
+                            <TextBlock FontSize="12" Text="Hide:" />
+                            <TextBlock FontSize="12" Text="CTRL + \" />
+                        </StackPanel>
+                    </Border>
+                    <Button Name="ChatBtn" Background="Transparent" Click="ChatBtnClick">
+                        <iconPacks:PackIconLucide Grid.Column="1" Kind="Brain" Height="16" Width="16" />
+                    </Button>
+                    <Button Name="SettingsBtn" Background="Transparent" Click="SettingBtnClick">
+                        <iconPacks:PackIconLucide Grid.Column="1" Kind="Settings" Height="16" Width="16" />
+                    </Button>
+                    <Button Name="HideBtn" Background="Transparent">
+                        <iconPacks:PackIconLucide Grid.Column="1" Kind="X" Height="13" Width="13" />
+                    </Button>
+
+                </StackPanel>
+            </Grid>
+        </Border>
+
+        <Border Grid.Row="1" CornerRadius="5" Background="Black" Opacity="0.8">
+            <UserControl Name="UControl" />
+        </Border>
+    </Grid>
+</Window>

ui/windows/MainWindow.axaml.cs

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+using Avalonia.Controls;
+using System;
+using System.Runtime.InteropServices;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Avalonia.Threading;
+using highminded.ui.controls;
+using SharpHook;
+using SharpHook.Data;
+
+namespace highminded.ui.windows;
+
+public partial class MainWindow : Window
+{
+    // MacOS
+    private const string ObjCRuntime = "/usr/lib/libobjc.dylib";
+
+    [DllImport(ObjCRuntime, EntryPoint = "objc_msgSend")]
+    private static extern void ObjcMsgSendInt(nint receiver, nint selector, int value);
+
+    [DllImport(ObjCRuntime, EntryPoint = "sel_registerName")]
+    private static extern nint RegisterName(string name);
+
+    // Windows
+    [DllImport("user32.dll")]
+    private static extern bool SetWindowDisplayAffinity(IntPtr hWnd, uint dwAffinity);
+
+    // Controls
+    private readonly ChatUserControl _chatUserControl = new ChatUserControl();
+    private readonly SettingsUserControl _settingsUserControl = new SettingsUserControl();
+
+    // Hotkey
+    private readonly TaskPoolGlobalHook _hook = new TaskPoolGlobalHook();
+
+    public MainWindow()
+    {
+        InitializeComponent();
+        UControl.Content = _chatUserControl;
+        ChatBtnActive();
+        HideOverlay();
+        // Global Hotkey
+        _hook.KeyPressed += OnKeyPressed;
+        _hook.RunAsync();
+    }
+
+    private void OnPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        BeginMoveDrag(e);
+    }
+
+    private void ChatBtnClick(object? sender, RoutedEventArgs e)
+    {
+        UControl.Content = _chatUserControl;
+        ChatBtnActive();
+    }
+
+    private void SettingBtnClick(object? sender, RoutedEventArgs e)
+    {
+        UControl.Content = _settingsUserControl;
+        SettingsBtnActive();
+    }
+
+    private void ChatBtnActive()
+    {
+        ChatBtn.Background = new SolidColorBrush(Color.FromArgb(25, 255, 255, 255));
+        SettingsBtn.Background = new SolidColorBrush(Colors.Transparent);
+    }
+
+    private void SettingsBtnActive()
+    {
+        ChatBtn.Background = new SolidColorBrush(Colors.Transparent);
+        SettingsBtn.Background = new SolidColorBrush(Color.FromArgb(25, 255, 255, 255));
+    }
+
+    private void OnKeyPressed(object? sender, KeyboardHookEventArgs e)
+    {
+        bool hasCtrl = (e.RawEvent.Mask & EventMask.Ctrl) != EventMask.None;
+        bool hasAlt = (e.RawEvent.Mask & EventMask.Alt) != EventMask.None;
+        bool hasShift = (e.RawEvent.Mask & EventMask.Shift) != EventMask.None;
+        bool hasH = e.Data.KeyCode == KeyCode.VcH;
+        bool hasBackslash = e.Data.KeyCode == KeyCode.VcBackslash;
+
+        if (hasCtrl && hasShift && hasAlt && hasH)
+        {
+            ShowOverlay();
+        }
+
+        if (hasShift && hasBackslash)
+        {
+            Dispatcher.UIThread.Post(() =>
+            {
+                if (WindowState == WindowState.Minimized || !IsVisible)
+                {
+                    Show();
+                    WindowState = WindowState.Normal;
+                    Activate();
+                    Topmost = true;
+                }
+                else
+                {
+                    Hide();
+                }
+            });
+        }
+    }
+
+    private void ShowOverlay()
+    {
+        var handle = TryGetPlatformHandle();
+
+        if (handle is null || handle.Handle == IntPtr.Zero)
+        {
+            Console.WriteLine("Invalid window handle.");
+            return;
+        }
+
+        var hwnd = handle.Handle;
+
+        switch (handle.HandleDescriptor)
+        {
+            case "HWND":
+            {
+                const uint include = 0x00000000;
+                SetWindowDisplayAffinity(hwnd, include);
+                break;
+            }
+            case "NSWindow":
+            {
+                const int include = 2;
+                var sharingTypeSelector = RegisterName("setSharingType:");
+                ObjcMsgSendInt(hwnd, sharingTypeSelector, include);
+                break;
+            }
+        }
+    }
+
+    private void HideOverlay()
+    {
+        var handle = TryGetPlatformHandle();
+
+        if (handle is null || handle.Handle == IntPtr.Zero)
+        {
+            Console.WriteLine("Invalid window handle.");
+            return;
+        }
+
+        var hwnd = handle.Handle;
+
+        switch (handle.HandleDescriptor)
+        {
+            case "HWND":
+            {
+                const uint exclude = 0x00000011;
+                SetWindowDisplayAffinity(hwnd, exclude);
+                break;
+            }
+            case "NSWindow":
+            {
+                const int exclude = 0;
+                var sharingTypeSelector = RegisterName("setSharingType:");
+                ObjcMsgSendInt(hwnd, sharingTypeSelector, exclude);
+                break;
+            }
+        }
+    }
+}