#pragma once

#include <vector>
#include <GL/glew.h> 
#include "utils.h"

struct VertexBufferElement
{
  unsigned int type;
  unsigned int count;
  unsigned char normalized;
  static unsigned int GetSizeOfType(unsigned int type)
  {
    switch (type)
    {
    case GL_FLOAT:
      return 4;
    case GL_UNSIGNED_INT:
      return 4;
    case GL_UNSIGNED_BYTE:
      return 1;
    }
    ASSERT(false);
    return 0;
  };
};

class VertexBufferLayout
{
private:
  std::vector<VertexBufferElement> m_Elements;
  unsigned int m_Stride;

public:
  VertexBufferLayout() : m_Stride(0)
  {
  }

  template <typename T>
  void Push(unsigned count);

  inline const std::vector<VertexBufferElement> GetElements() const &
  {
    return m_Elements;
  }
  inline unsigned int GetStride() const
  {
    return m_Stride;
  }
};