using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp.Graphics
{
    internal partial class GLonUpdate : IglFunc
    {
        void IglFunc.ActiveTexture(uint type)
        {
            throw new NotImplementedException();
        }

        void IglFunc.AttachShader(uint program, uint shader)
        {
            throw new NotImplementedException();
        }

        void IglFunc.BindBuffer(BufferType bufferType, uint index)
        {
            throw new NotImplementedException();
        }


        void IglFunc.BindTexture(uint type, uint texture)
        {
            throw new NotImplementedException();
        }

        void IglFunc.BindVertexArray(uint index)
        {
            throw new NotImplementedException();
        }

        void IglFunc.Clear(MaskBufferBit mask)
        {
            throw new NotImplementedException();
        }


        void IglFunc.ClearColor(float R, float G, float B, float A)
        {
            throw new NotImplementedException();
        }

        void IglFunc.ClearGraphicError()
        {
            throw new NotImplementedException();
        }


        uint IglFunc.CompileShader(string shaderCode, ShaderType shaderType)
        {
            throw new NotImplementedException();
        }


        uint IglFunc.CreateProgram()
        {
            throw new NotImplementedException();
        }

        IntPtr IglFunc.CreateWindowHandle(int width, int height, string tittle, IntPtr monitor, Form share)
        {
            byte[] tittleBytes = Encoding.UTF8.GetBytes(tittle);
            IntPtr windowPtr;
            if (share == null)
            {
                windowPtr = InternalIO.glfw.CreateWindow(
                    width, height, tittleBytes, monitor, IntPtr.Zero);
            }
            else
            {
                windowPtr = InternalIO.glfw.CreateWindow(
                    width, height, tittleBytes, monitor, share.windowID);
            }

            if ((long)windowPtr == -1 || (long)windowPtr == -2)
            {
                throw new Exception("Cannot create window instance!");
            }
            else
            {
                return windowPtr;
            }
        }


        uint IglFunc.CreatGraphicProgram()
        {
            throw new NotImplementedException();
        }


        unsafe void IglFunc.DeleteBuffers(int count, uint* ptr)
        {
            throw new NotImplementedException();
        }

        unsafe void IglFunc.DeleteVertexArrays(int count, uint* ptr)
        {
            throw new NotImplementedException();
        }

        public void DrawElements(GepmetryType mode, int count, Type type, IntPtr ptr)
        {
            throw new NotImplementedException();
        }


        void IglFunc.DrawElements(GepmetryType mode, int count, Type type, IntPtr ptr)
        {
            throw new NotImplementedException();
        }

        unsafe void IglFunc.GenBuffers(int count, uint* ptr)
        {
            throw new NotImplementedException();
        }

        unsafe void IglFunc.GenTextures(int count, uint* ptr)
        {
            throw new NotImplementedException();
        }

        unsafe void IglFunc.GenVertexArrays(int count, uint* ptr)
        {
            throw new NotImplementedException();
        }

        public void GetGraphicError()
        {
            throw new NotImplementedException();
        }

        void IglFunc.GetGraphicError()
        {
            throw new NotImplementedException();
        }

        public unsafe int GetUniformLocation(uint program, byte* ptr)
        {
            throw new NotImplementedException();
        }

        unsafe int IglFunc.GetUniformLocation(uint program, byte* ptr)
        {
            throw new NotImplementedException();
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public bool GetWindowShouldClose(Form form)
        {
            return InternalIO.glfw.WindowShouldClose(form.windowID) == 0;
        }

        bool IglFunc.GetWindowShouldClose(Form form)
        {
            throw new NotImplementedException();
        }

        public void GLswapBuffers(Form form)
        {
            if (form.windowID == IntPtr.Zero)
            {
                return;
            }
            InternalIO.glfw.SwapBuffers(form.windowID);
        }

        public void MakeContexCurrent(Form form)
        {
            if (form.windowID == IntPtr.Zero)
            {
                return;
            }
            InternalIO.glfw.MakeContextCurrent(form.windowID);
        }

        void IglFunc.MakeContexCurrent(Form form)
        {
            throw new NotImplementedException();
        }

        public void SetBufferData<T>(BufferType bufferType, T bufferData, BufferUsage usage) where T : IMat
        {
            throw new NotImplementedException();
        }

        public void SetBufferData<T>(BufferType bufferType, T[] bufferArray, BufferUsage usage) where T : struct, IConvertible
        {
            throw new NotImplementedException();
        }

        void IglFunc.SetBufferData<T>(BufferType bufferType, T bufferData, BufferUsage usage)
        {
            throw new NotImplementedException();
        }

        void IglFunc.SetBufferData<T>(BufferType bufferType, T[] bufferArray, BufferUsage usage)
        {
            throw new NotImplementedException();
        }

        public void SetFrameBufferSizeCallback(IntPtr id, FrameBufferSizeHandler handler)
        {
            InternalIO.glfw.SetFramebufferSizeCallback(id, handler);
        }

        void IglFunc.SetFrameBufferSizeCallback(IntPtr id, FrameBufferSizeHandler handler)
        {
            throw new NotImplementedException();
        }


        void IglFunc.SetVertexAttribute(uint index, int size, Type t, bool normalized, int stride, int pointer)
        {
            throw new NotImplementedException();
        }

        void IglFunc.SwapBuffers(Form form)
        {
            throw new NotImplementedException();
        }

        public unsafe void TextureImage2d(uint target, int level, uint internalformat, int width, int height, uint format, uint type, void* pixels)
        {
            throw new NotImplementedException();
        }

        unsafe void IglFunc.TextureImage2d(uint target, int level, uint internalformat, int width, int height, uint format, uint type, void* pixels)
        {
            throw new NotImplementedException();
        }

        public void TextureParameter(uint target, uint pname, int param)
        {
            throw new NotImplementedException();
        }

        void IglFunc.TextureParameter(uint target, uint pname, int param)
        {
            throw new NotImplementedException();
        }

        void IglFunc.UseProgram(uint rogram)
        {
            throw new NotImplementedException();
        }

        void IglFunc.Viewport(int x, int y, int width, int height)
        {
            throw new NotImplementedException();
        }
    }
}