#include <GL/gl.h>
#include <vector>
#include <string>
#include <map>

class WFObj
{
public:
	typedef GLuint (*loadTextureFunc_t)(const char * texture);
	bool load(const std::string & filename, loadTextureFunc_t loadTexture);
	GLuint render();
	const float * const getAABB() { return m_aabb; }

protected:
	/* types */
	class Vertex
	{
	public:
		float operator[](int idx) const { return data[idx]; }
		const float & operator[](int idx) { return data[idx]; }
		float * getData() { return data; }
	private:
		float data[4];
	};

	/* methods */
	void clear();
	int filesize(const char * filename);
	void processInputLine(const std::string & input);
	Vertex readVertex(const std::vector<std::string> & parts);
	void parseVertexIndices(const std::string & vtxref, int * ret);
	void updateAABB(const float * const vertex);

	/* variables */
	std::vector< std::vector<std::string> > m_data;
	loadTextureFunc_t m_loadTexture;
	std::string m_fileName;
	float m_aabb[6];
	bool m_loadedVertex;
};


class WFMtl
{
public:
	bool load(const std::string & filename, WFObj::loadTextureFunc_t loadTexture);
	void renderBegin(const std::string & mtlname);
	void renderEnd(const std::string & mtlname);

protected:
	/* methods */
	void clear();
	int filesize(const char * filename);
	void processInputLine(const std::string & input);
	void pushAttributes();

	/* variables */
	std::map< std::string, std::vector< std::vector<std::string> > > m_data;
	std::string m_currentMaterialName;
	bool m_attributesPushed;
	WFObj::loadTextureFunc_t m_loadTexture;
	std::string m_fileName;
};