/*!
  \file material.h
  \brief Contains the Material Class that handles Material for 3D-Objects.
  \todo free SDL-surface when deleting Material.
  \todo delete imgNameWithPath after use creation.
*/

#ifndef _MATERIAL_H
#define _MATERIAL_H



extern int verbose; //!< will be obsolete soon.

#include "../stdincl.h"

#if HAVE_CONFIG_H 
#include <config.h> 
#endif /* HAVE_CONFIG_H */

#ifdef HAVE_SDL_SDL_IMAGE_H
#include <SDL/SDL_image.h>
#else
// IMAGE LIBS //
#ifdef HAVE_JPEGLIB_H
extern "C"{         // This has to be done, because not a c++ lib
#include <jpeglib.h>
}
#endif /* HAVE_JPEGLIB_H */
#ifdef HAVE_PNG_H
#include <png.h>
#endif /* HAVE_PNG_H */
#endif /* HAVE_SDL_SDL_IMAGE_H */

//! Class to handle lists of paths.
/**
   \todo Ability to return Paths by itself.

   It is simple to use, and good, for all PathList you want.
   just create a new Pathlist, and add Paths.
*/
class PathList
{
 public:
  PathList();
  PathList(char* pName);

  ~PathList();
  void addPath (char* pName);
  char* pathName;          //!< The Name of the current Path.
  PathList* next;          //!< Pointer to the next Pathlist.
};


//! Class to handle Materials.
class Material
{
 public:
  Material ();
  Material (char* mtlName);
  Material* addMaterial(char* mtlName);
  ~Material ();
  void init(void);

  Material* search (char* mtlName);
  bool select (void);

  void setName (char* mtlName);
  char* getName (void);
  void setIllum (int illum);
  void setIllum (char* illum);
  void setDiffuse (float r, float g, float b);
  void setDiffuse (char* rgb);
  void setAmbient (float r, float g, float b);
  void setAmbient (char* rgb);
  void setSpecular (float r, float g, float b);
  void setSpecular (char* rgb);
  void setShininess (float shini);
  void setShininess (char* shini);
  void setTransparency (float trans);
  void setTransparency (char* trans);


 
  void addTexturePath(char* pathName);
  char* searchTextureInPaths(char* texName) const;
 // MAPPING //
  void setDiffuseMap(char* dMap);
  void setAmbientMap(char* aMap);
  void setSpecularMap(char* sMap);
  void setBump(char* bump);

 private:
  //! Struct to handle Infos about an Image
  struct Image
  {
    int rowSpan;    //!< The count of the rows this Image has.
    GLuint width;   //!< The width of the Image.
    GLuint height;  //!< The height of the Image.
    GLuint bpp;     //!< BitsPerPixel
    GLuint type;    //!< Type of the Image.
    GLubyte *data;  //!< The Image Data comes here! DANGER: uncompressed data.
  };


  char* name;        //!< The Name of the Material.
  int illumModel;    //!< The IlluminationModel is either flat or smooth.
  float diffuse [4]; //!< The diffuse color of the Material.
  float ambient [4]; //!< The ambient color of the Material.
  float specular [4];//!< The specular color of the Material.
  float shininess;   //!< The shininess of the Material.
  float transparency;//!< The transperency of the Material.

  static PathList* pathList; //!< A pointer to the first element of Pathlist. This is static, because pathlists are global \todo copy this to the Globals.h or DataTank for deletion at the end.
  
  GLuint diffuseTexture; //!< The diffuse texture of the Material.
  GLuint ambientTexture; //!< The ambient texture of the Material.
  GLuint specularTexture;//!< The specular texture of the Material.
  
  bool diffuseTextureSet; //!< Chekcs if the diffuse texture is Set.
  bool ambientTextureSet; //!< Chekcs if the ambient texture is Set.
  bool specularTextureSet;//!< Chekcs if the specular texture is Set.

  Material* nextMat; //!< pointer to the Next Material of the List. NULL if no next exists.

  // TEXTURING
  bool loadTexToGL (Image* pImage, GLuint* texture);

  bool loadImage(char* imageName, GLuint* texture);
#ifndef HAVE_SDL_SDL_IMAGE_H

  bool loadBMP (char* bmpName, GLuint* texture);

  bool loadJPG (char* jpgName, GLuint* texture);

  /// TGA ///

  bool loadTGA(const char * tgaName, GLuint* texture);
  bool loadUncompressedTGA(const char * filename, FILE * fTGA, GLuint* texture);
  bool loadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture);

  bool loadPNG(const char* pngName, GLuint* texture);
#endif
};
#endif