#!/bin/env python

# args: <calc file> <spacecraft ID (usually 0)> <spacecraft name>

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

mjd0 = datetime.datetime(1858, 11, 17, 0, 0)

if len(argv) != 4:
	print 'Usage: %s <calc file> <spacecraft ID (usually 0)> <spacecraft name>' % argv[0]
	print '\nThis program is used to make an sked file section for use in the Sekido near-field model.'
	exit(0)

match = 'SPACECRAFT %s ROW' % argv[2]

data = open(argv[1]).readlines()

for d in data:
	if match in d:
		v = split(strip(split(d, ':')[1]))
		if len(v) == 7:
			mjd = float(v[0])
			dt = datetime.timedelta(int(mjd), int((mjd - int(mjd))*86400.0 + 0.5))
			t = mjd0 + dt

			print '%-9s 10 SX PREOB  %02d%03d%02d%02d%02d      30 MIDOB      0 POSTOB G-B-D-H-K-L-M-N-O-P-C- 1F000000 1F000000 YYYN   120   120' % (argv[3], t.year % 100, t.timetuple().tm_yday, t.hour, t.minute, t.second)