#pragma once

#include "boo/graphicsdev/IGraphicsDataFactory.hpp"
#include "zeus/CMatrix4f.hpp"
#include "zeus/CColor.hpp"

namespace urde
{

class CColoredStripShader {
public:
  enum class Mode {
    Alpha,
    Additive,
    FullAdditive,
    Subtractive
  };
private:
  struct Uniform {
    zeus::CMatrix4f m_matrix;
    zeus::CColor m_color;
  };
  boo::ObjToken<boo::IGraphicsBufferD> m_vbo;
  boo::ObjToken<boo::IGraphicsBufferD> m_uniBuf;
  boo::ObjToken<boo::IShaderDataBinding> m_dataBind;
  Uniform m_uniform;

  void BuildResources(boo::IGraphicsDataFactory::Context& ctx, size_t maxVerts, Mode mode,
                      boo::ObjToken<boo::ITexture> tex);
public:
  struct Vert {
    zeus::CVector3f m_pos;
    zeus::CColor m_color;
    zeus::CVector2f m_uv;
  };
  static void Initialize();
  static void Shutdown();
  CColoredStripShader(size_t maxVerts, Mode mode, boo::ObjToken<boo::ITexture> tex);
  CColoredStripShader(boo::IGraphicsDataFactory::Context& ctx, size_t maxVerts, Mode mode,
                      boo::ObjToken<boo::ITexture> tex);
  void draw(const zeus::CColor& color, size_t numVerts, const Vert* verts);
};

}