using System.Drawing;
using System.Text;
using BlurgText;
using Dashboard.BlurgText;
using Dashboard.BlurgText.OpenGL;
using Dashboard.Controls;
using Dashboard.Drawing;
using Dashboard.Events;
using Dashboard.OpenGL;
using Dashboard.OpenTK.PAL2;
using Dashboard.Pal;
using Dashboard.StbImage;
using OpenTK.Graphics.OpenGL;
using OpenTK.Mathematics;
using OpenTK.Platform;
using Image = Dashboard.Drawing.Image;
using MouseMoveEventArgs = OpenTK.Platform.MouseMoveEventArgs;
using TK = OpenTK.Platform.Toolkit;
using Vector4 = System.Numerics.Vector4;

TK.Init(new ToolkitOptions()
{
    ApplicationName = "DashTerm",
    Windows = new ToolkitOptions.WindowsOptions()
    {
        EnableVisualStyles = true,
        IsDPIAware = true,
    },
    FeatureFlags = ToolkitFlags.EnableOpenGL,
});

Application app = new Pal2Application()
{
    GraphicsApiHints = new OpenGLGraphicsApiHints()
    {
        Version = new Version(3, 2),
        ForwardCompatibleFlag = true,
        DebugFlag = true,
        Profile = OpenGLProfile.Core,
        sRGBFramebuffer = true,

        SwapMethod = ContextSwapMethod.Undefined,

        RedColorBits = 8,
        GreenColorBits = 8,
        BlueColorBits = 8,
        AlphaColorBits = 8,
        Multisamples = 0,

        SupportTransparentFramebufferX11 = true,
    }
};

PhysicalWindow window;
SolidBrush fg = new SolidBrush(Color.FromArgb(0, 0, 0, 0));
SolidBrush bg = new SolidBrush(Color.Black);
CancellationTokenSource source = new CancellationTokenSource();
// GLEngine engine;
// ContextExecutor executor;
// DimUI dimUI;
Vector2 mousePos = Vector2.Zero;
Random r = new Random();
List<Vector3> points = new List<Vector3>();
// IFont font;
StringBuilder builder = new StringBuilder();

app.Initialize();
app.ExtensionRequire<StbImageLoader>();
app.ExtensionLoad(new BlurgTextExtension(new BlurgTextExtensionFactory()));

window = (PhysicalWindow)app.CreatePhysicalWindow();

window.Title = "DashTerm";
TK.Window.SetMinClientSize(window.WindowHandle, 300, 200);
TK.Window.SetClientSize(window.WindowHandle, new Vector2i(320, 240));
TK.Window.SetBorderStyle(window.WindowHandle, WindowBorderStyle.ResizableBorder);
// TK.Window.SetTransparencyMode(wnd, WindowTransparencyMode.TransparentFramebuffer, 0.1f);

GLDeviceContext context = (GLDeviceContext)window.DeviceContext;

context.GLContext.MakeCurrent();
context.GLContext.SwapGroup.SwapInterval = 1;

// engine = new GLEngine();
// engine.Initialize();
//
// executor = engine.GetExecutor(context);
//
// dimUI = new DimUI(new DimUIConfig()
// {
//     Font = new NamedFont("Noto Sans", 9f),
// });

EventQueue.EventRaised += (handle, type, eventArgs) =>
{
    if (handle != window.WindowHandle)
        return;

    switch (type)
    {
        case PlatformEventType.Close:
            source.Cancel();
            break;
        case PlatformEventType.MouseMove:
            mousePos = ((MouseMoveEventArgs)eventArgs).ClientPosition;
            break;
    }
};

TK.Window.SetMode(window.WindowHandle, WindowMode.Normal);
// font = Typesetter.LoadFont("Nimbus Mono", 12f);

foreach (string str in typeof(Image).Assembly.GetManifestResourceNames()) Console.WriteLine(str);

BlurgFont font = context.ExtensionRequire<BlurgDcExtension>().Blurg
    .QueryFont("Recursive Mono", FontWeight.Regular, false) ?? throw new Exception("Font not found");

window.EventRaised += (sender, ea) => {
        if (ea is not PaintEventArgs)
            return;

        TK.Window.GetSize(window.WindowHandle, out Vector2i size);
        // executor.BeginFrame();
        //
        // dimUI.Begin(new Box2d(0, 0, size.X, size.Y), window.DrawQueue);
        // dimUI.Text("Hello World!");
        // dimUI.Button("Cancel"); dimUI.SameLine();
        // dimUI.Button("OK");
        //
        // dimUI.Input("type me!", builder);
        //
        // dimUI.BeginMenu();
        //
        // if (dimUI.MenuItem("File"))
        // {
        //     dimUI.BeginMenu();
        //     dimUI.MenuItem("New Window");
        //     dimUI.MenuItem("Preferences");
        //     dimUI.MenuItem("Exit");
        //     dimUI.EndMenu();
        // }
        //
        // if (dimUI.MenuItem("Edit"))
        // {
        //     dimUI.BeginMenu();
        //     dimUI.MenuItem("Cut");
        //     dimUI.MenuItem("Copy");
        //     dimUI.MenuItem("Paste");
        //
        //     if (dimUI.MenuItem("Send Char"))
        //     {
        //         dimUI.BeginMenu();
        //         dimUI.EndMenu();
        //     }
        //
        //     dimUI.EndMenu();
        // }
        //
        // if (dimUI.MenuItem("View"))
        // {
        //     dimUI.BeginMenu();
        //     dimUI.MenuItem("Clear");
        //
        //     if (dimUI.MenuItem("Set Size"))
        //     {
        //         dimUI.BeginMenu();
        //         dimUI.MenuItem("24 x 40");
        //         dimUI.MenuItem("25 x 40");
        //         dimUI.MenuItem("24 x 80");
        //         dimUI.MenuItem("25 x 80");
        //         dimUI.MenuItem("25 x 120");
        //         dimUI.EndMenu();
        //     }
        //
        //     dimUI.EndMenu();
        // }
        //
        // dimUI.Finish();

        GL.Viewport(0, 0, size.X, size.Y);
        GL.ClearColor(0.3f, 0.3f, 0.3f, 1.0f);
        GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
        GL.Disable(EnableCap.DepthTest);
        GL.Enable(EnableCap.Blend);
        GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
        GL.ColorMask(true, true, true, true);

        ITexture texture = MessageBox.s_questionIcon.InternTexture(context);

        // executor.Draw(window.DrawQueue, new RectangleF(0, 0, size.X, size.Y), 1.5f /*(window as IDpiAwareWindow)?.Scale ?? 1*/);
        // executor.EndFrame();

        context.Begin();

        IImmediateMode imm = context.ExtensionRequire<IImmediateMode>();
        imm.ClearColor(Color.Magenta);
        imm.Line(new System.Numerics.Vector2(10, 10), new System.Numerics.Vector2(50, 50), 3, 0, new Vector4(0.2f, 0.2f, 1.0f, 1.0f));

        BlurgDcExtension blurg = context.ExtensionRequire<BlurgDcExtension>();
        blurg.DrawBlurgFormattedText(new BlurgFormattedText("Hello world!", font) { DefaultSize = 64f }, new System.Numerics.Vector3(24, 24, 1));

        context.End();
};

app.Run(true, source.Token);


class BlurgTextExtensionFactory : IBlurgDcExtensionFactory
{
    public BlurgDcExtension CreateExtension(BlurgTextExtension appExtension, DeviceContext dc)
    {
        return new BlurgGLExtension();
    }
};