#!/usr/bin/python

import datetime
from time import sleep
import curses, sys
import yaml

def strHMS(seconds):
  """Transforms integer seconds to HH:MM:SS"""
  hours,seconds   = divmod(seconds,3600)
  minutes,seconds = divmod(seconds,60)
  return "%02d:%02d:%02d" % (hours,minutes,seconds)

curses.setupterm()
clear_string = curses.tigetstr("clear")

events = yaml.load(open("events.yaml"))

eventids = events.keys()
eventids.sort(lambda x,y: cmp(events[x],events[y]))

while True:
  sys.stdout.write(clear_string)
  now = datetime.datetime.now().replace(microsecond=0)
  print now.strftime("LCL %Y:%j:%H:%M:%S")
  print now.utcnow().strftime("UTC %Y:%j:%H:%M:%S")

  print ""
  for id in eventids:
    sign = "+"
    delta = now - events[id]
    if delta.days < 0:
      sign = "-"
      delta = -delta

    print "%6s %s %3d:%s" % (id,sign,delta.days,strHMS(delta.seconds))
  # end for
  sys.stdout.flush()
  sleep(1)
# end while