#!/usr/bin/python

import sgflib
import sys
import os
import re

def main():
	src = open(sys.argv[1], 'r')
	text = src.read()
	src.close()
	col = sgflib.SGFParser(text).parse()
	#print col
	m = col[0].mainline()
	#print m
	#for i in m:
	#	print i
	c = col.cursor()
	sgf_so_far = '('
	plotfile=open('plotfile','w')
	while 1:
		sgf_so_far = sgf_so_far + str(c.node)
		#print "nodenum: %s; index: %s; children: %s; node: %s" % (c.nodenum, c.index, len(c.children), c.node)
		if c.atEnd:
			break
		file = open('sgf_so_far','w')
		file.write(sgf_so_far)
		file.close()
		pipe = os.popen('gnugo -l sgf_so_far --score estimate 2> /dev/null')
		prevline = ''
		while 1:
			line = pipe.readline()
			if not line:
				break
			prevline = line
		pipe.close()
		print c.nodenum+1,prevline,
		r=re.compile('^([BW]) seems to win by ([0-9\.]*) points.*$')
		m=r.match(prevline)
		if m:
			if c.nodenum >= 3:
				if m.group(1) == 'B':
					plotfile.write(str(c.nodenum+1)+' '+m.group(2)+'\n')
				else:
					plotfile.write(str(c.nodenum+1)+' '+'-'+m.group(2)+'\n')
		else:
			print 'bad thing'
		plotfile.flush()
		c.next()
	plotfile.close()
	os.system('gnuplot gp')

main()
#print 'hi'