#include <stdlib.h>
#include <stdbool.h>
#include <stdio.h>

#include "Path.h"
#include "Image.h"

//------------------------------------------------------------------------------

#define MIN_SUBDIR_COUNT  7
#define MAX_SUBDIR_COUNT 11

char * subDirNames []= {
  "cranium", "chin", "ears", "nose", "mouth", "eyes", "eyebrows",   
  "beard", "moustache", "hair", "glasses"    
};

//------------------------------------------------------------------------------

int main (int argc, char * argv[]) {
  if (argc != 1+2 && argc != 1+3) {
    fprintf (stderr, "Usage: %s DIR SEED [FILE]\n", argv[0]);
    exit (1);
  }
  char * baseDirName= argv[1];
  int seed= atoi (argv[2]);
  char * filename= (argc == 1+3) ? argv[3] : NULL;
  srand (seed);
  MagickWandGenesis();
  MagickWand * face= Image_randomFace (baseDirName, subDirNames,
                                       MIN_SUBDIR_COUNT, MAX_SUBDIR_COUNT);
  if (filename == NULL) MagickDisplayImage(face, getenv ("DISPLAY"));
  else if ( ! MagickWriteImage  (face, filename)) {
    fprintf (stderr, "Error: failed to write image to '%s'\n", filename);
  }
  DestroyMagickWand (face);
  MagickWandTerminus();
  return 0;
}