#!/usr/bin/env python
# Convert an iCalendar file into the format showtodo expects.
# Adam Sampson <ats@offog.org>

import sys, urllib2, icalendar

def parse(uri):
	f = urllib2.urlopen(uri)
	data = f.read()
	f.close()

	print "# Imported from %s" % uri

	cal = icalendar.Calendar.from_string(data)
	for event in cal.walk("vevent"):
		date = event["dtstart"].ical()
		text = event["summary"]
		if not date.endswith("T000000"):
			text = date[9:13] + " " + text
		date = date[:8]
		print "%s\t%s" % (date, text.strip())

if __name__ == "__main__":
	for arg in sys.argv[1:]:
		parse(arg)