using StgSharp.Control;
using StgSharp.Graphics;
using StgSharp.Graphics.GL;
using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;

namespace StgSharp
{
    public static unsafe class Graphic
    {
        /// <summary>
        /// Init a form, attach its data to GLFW program, 
        /// and return the pointer of the GLFW package of the form.
        /// </summary>
        /// <param name="form">The C# instance of the form</param>
        /// <returns>Pointer of the GLFW package of this form</returns>
        /// <exception cref="Exception">The issue that form is not successfully initilized
        /// or GLAD program fail to init</exception>
        public static unsafe IntPtr InitWindow(Form form)
        {
            IntPtr a= internalIO.InternalInitWindow(form.info);
            if ((long)a == -1)
            {
                throw new Exception("Failed to init form.");
            }
            else if ((long)a == -2)
            {
                throw new Exception("Failed to load GLAD program.");
            }
            else
            {
                return a;
            }
        }

        public static unsafe void LoadForm(Form form)
        {
            ProgramTimeLine.allForm.Add(form);
        }


    }
}