#include <xapian.h>
#include <iostream>
int main(int argc, char **argv){
  if (argc != 2) {
    fprintf (stderr, "usage: ggc xapian-database\n");
    exit (1);
  }

  Xapian::Database db(argv[1]);
  Xapian::Enquire enquire(db);

  enquire.set_query(Xapian::Query("Tghost"));

  auto mset = enquire.get_mset (0,db.get_doccount ());

  for (auto iter=mset.begin (); iter != mset.end(); iter++){
      std::string mid;
      auto doc = iter.get_document ();
      auto term_iter = doc.termlist_begin ();

      term_iter.skip_to ("Q");
      mid=(*term_iter).substr(1);

      std::string ref_term = "XREFERENCE" + mid;
      auto ref_count = db.get_termfreq (ref_term);

      std::string reply_term = "XREPLYTO" + mid;
      auto reply_count = db.get_termfreq (reply_term);

      if (ref_count+reply_count == 0){
	  std::cout << "docid=" <<  *iter;
	  std::cout << " mid=" << mid;
	  std::cout << std::endl;
      }
  }
}