#!/usr/bin/env python

import sys, os, re

"""
sos_apomakeredocmd

print bash a script file that will run redo for a given range of mjds.

The output script will link the current log to ../redo-b1.out.  This allows another
window to "tail -F redo-b1.out" to follow the whole process.

Written by Gary Kushner (LBL).  Mar 2010.

"""

####
def usage():
	"""Display usage and exit"""
	
	usageCMD = os.path.basename(sys.argv[0])

	print >>sys.stderr, "usage:"
	print >>sys.stderr, "\t%s MJD_start MJD_end" % usageCMD
	print >>sys.stderr, " "
	print >>sys.stderr, "will output the script file to stdout"

	sys.exit(1)
	
####


####
def main(argv):
	"""Parse arguments and generate a script file"""

	#	Check params
	if len(argv) != 2:
		usage()
		
	if re.match("^5[56]\d\d\d$", argv[0]) == None:
		print >>sys.stderr, argv[0] + " is not a valid mjd [55000, 56999]."
		print >>sys.stderr, " "
		usage()

	if re.match("^5[56]\d\d\d$", argv[1]) == None:
		print >>sys.stderr, argv[1] + " is not a valid mjd [55000, 56999]."
		print >>sys.stderr, " "
		usage()
		
		
	#	Make it bash and echo commands to make debugging easier
#	print "#!/bin/bash -x"
	print "#!/usr/bin/env bash"
	print "set -o verbose"
		
	for mjd in range(int(argv[0]), int(argv[1]) + 1):
		print "mkdir -p redo-out-" + str(mjd)
		print "ln -s -f redo-out-" + str(mjd) + "/redo-b1.out redo-b1.out "
		print "cd redo-out-" + str(mjd)
		print "sos_aporedo -g -w -m " + str(mjd)
		print "cd .."
	
if __name__=='__main__':
	main(sys.argv[1:])