/*
   model/material.h
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#ifndef __INCLUDED_MODEL_MATERIAL_H__
#define __INCLUDED_MODEL_MATERIAL_H__

#include <string>
#include <map>

#include "math/color.h"

namespace model
{

/// fragment surface material parameters
class Material
{
public:
	/// surface flags
	enum SurfaceFlags { None=0, Primary=1, Secondary=2, Tertiary=3, Bright=4, Engine=8, Environment=16};

	/// type definition for the material registry
	typedef std::map<std::string, Material *> Registry;

	Material(const std::string &name);
	~Material();

	inline const std::string &name() const { return material_name; }

	inline const math::Color &color() const { return material_color; }

	inline const unsigned int flags() const { return material_flags; }

	inline void set_flags(SurfaceFlags flags)
	{
		material_flags |= flags;
	}

	inline void unset_flags(SurfaceFlags flags)
	{
		material_flags &= ~flags;
	}


	void set_color(const math::Color &color);
	
/* ---- static ----------------------------------------------------- */

	/**
	 * @brief initialize materials
	 * reads materials from the shader files
	 */
	static void init();

	/// clear all materials
	static void shutdown();

	/// clear all materials
	static void clear();

	/// list registered materials
	static void list();

	/// add a material to the registry
	static void add(Material *material);

	/// find a material in the registry
	static Material *find(const std::string &name);

private:

	std::string		material_name;
	math::Color		material_color;
	unsigned int		material_flags;

	/// the material registry
	static Registry		material_registry;

	static void load_shader(const std::string &shadername);
};

}

#endif // __INCLUDED_MODEL_MATERIAL_H__