using SkiaSharp;
using Vortice.Direct3D11;
using Vortice.DXGI;

namespace FenUISharp
{
    public class SkiaDirectCompositionContext
    {
        public Action<SKCanvas> DrawAction { get; private set; }

        public SkiaDirectCompositionContext(Window window, Action<SKCanvas> drawAction)
        {
            this.DrawAction = drawAction;

            // Creating DirectCompositionContext and getting adapter
            var dxcc = new DirectCompositionContext(window.hWnd, () => window.WindowSize, Vortice.DXGI.Format.B8G8R8A8_UNorm);
            var adapter = dxcc.GetHardwareAdapter();

            // Creating backend context for Skia D3D
            var backendContext = new GRD3DBackendContext()
            {
                Device = dxcc.Device.NativePointer,
                Adapter = adapter.NativePointer,
                ProtectedContext = false
            };

            // Creating Skia D3D GRContext
            var grD3DContext = GRContext.CreateDirect3D(backendContext); // This line will throw an CLR/System.Runtime.InteropServices.SEHException: External component has thrown an exception
            if (grD3DContext == null)
                throw new Exception("Failed to create Skia D3D GRContext");
        }

        internal void Draw()
        {
            throw new NotImplementedException();
        }
    }
}