/*
 *  grader.c
 *
 *  Copyright (C) 2003 Nadav Rotem <nadav256@hotmail.com>
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Library General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libots.h"

extern void ots_grade_doc_tc (OtsArticle * Doc);

/*Grader driver - will call one of the grading algorithm*/



void
ots_grade_structure (OtsArticle * Doc) /*must be called after the first grader*/
{
  GList *li;
  GList *first;
  GList *second;
  OtsSentence *first_line=NULL;

  first = NULL;
  second = NULL;

 if (Doc==NULL) return;
  
 if (Doc->lines!=NULL) 
  first_line= ((OtsSentence *) (Doc->lines->data));
  if (NULL!=first_line) first_line->score *= 2;	/*first line/title is very important so we increase its score */

 	 /*This loop will *1.6 the score of each line that
 	 starts with \n \n , in other words a new paragraph*/
 
  for (li = (GList *) Doc->lines; li != NULL; li = li->next)
  {
      OtsSentence *aLine = (li->data);
      if (NULL != aLine)	/*line is there */
		{
		  first = aLine->words;	/*first word? */
		  if (NULL != first)
	  	  second = first->next;	/*second word? */
	  		if ((NULL != first) && (NULL != second))	/*have content? */
	    	if (strcmp (first->data, "\n") && strcmp (second->data, "\n"))	/*new paragraph? */
	   		  	 aLine->score *= 1.6;
		}

  }

}

/** 
Each grader needs to do:
1.give a ->score to each line 
2.Set the ->title of the document
**/

void
ots_grade_doc (OtsArticle * Doc)
{

 if (Doc==NULL) return;
  ots_grade_doc_tc(Doc);  /*Term count*/

	/* or   ots_grade_doc_fc (Doc); Term Frequency  */
		
  ots_grade_structure (Doc);
}