#!/usr/bin/env python

#**************************************************************************
#   Copyright (C) 2009 by Walter Brisken                                  *
#                                                                         *
#   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 3 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 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.             *
#**************************************************************************

#===========================================================================
# SVN properties (DO NOT CHANGE)
#
# $Id$
# $HeadURL$
# $LastChangedRevision$
# $Author$
# $LastChangedDate$
#
#============================================================================

from sys import argv, exit
from string import split, strip, lower

format = [1, 2, 3, 4]

def parsehead(str):
	s = split(strip(str))
	return [s[0], int(s[1])]

def parsescan(str):
	s = split(strip(str))
	return [int(s[0]), int(s[1]), int(s[2]), int(s[3]), int(s[4]), int(s[5]), float(s[6]), int(s[7]), int(s[8]), int(s[9]), int(s[10]), lower(s[11])]

def getstart(s):
	return float(s[2]) + (float(s[3]) + float(s[4])/float(s[5]))/86400.0

def getstop(s):
	return float(s[2]) + (float(s[3]) + float(s[4])/float(s[5]) + s[6])/86400.0

if len(argv) < 2:
	print 'Usage: %s <difxdirfile>'
	exit(0)

d = open(argv[1], 'r').readlines()

scans = []
header = parsehead(d[0])

if header[1] != len(d)-1:
	print 'Warning -- directory size mismatch'
	header[1] = len(d)-1

first = 100000
last = 0
for i in d[1:]:
	scan = parsescan(i)
	start = getstart(scan)
	stop = getstop(scan)
	scans.append(scan)
	if start < first:
		first = start
	if stop > last:
		last = stop

print '%d %14.8f %14.8f %s' % (header[1], first, last, header[0])
for s in scans:
	print '%d %d %14.8f %14.8f %d %d %s' % (s[0], s[0]+s[1], getstart(s), getstop(s), format[s[10]], s[9], s[11])