#!/usr/bin/python

import xmltramp
import xmlrpclib
import time
import sys
from beah import config
from datetime import datetime, timedelta

lab_controller = None

USAGE_TEXT = """
Usage: wait4guest guestrecipeid <timeout>

timeout is optional and is in seconds
"""

def configure():
    config.backend_conf(filename='beah_beaker.conf')

def loop(recipeid, timeout):
    conf = config.get_conf('beah-backend')
    lab_controller = conf.get('DEFAULT','LAB_CONTROLLER')
    server = xmlrpclib.ServerProxy(lab_controller)
    while True:
        myxml = server.get_my_recipe(dict(recipe_id=recipeid))
        status = xmltramp.parse(myxml).recipeSet.guestrecipe()['status']
        if status in ['Running']:
            sys.exit(0)
        if timeout and timeout < datetime.now():
            print "Timeout Exceeded"
            sys.exit(1)
        time.sleep(60)

def usage():
    sys.stderr.write(USAGE_TEXT)
    sys.exit(-1)

def main():
    if len(sys.argv) < 2:
        usage()
    recipeid = sys.argv[1]
    if len(sys.argv) == 3:
        timeout = datetime.now() + timedelta(seconds = int(sys.argv[2]))
    else:
        timeout = None
    configure()
    loop(recipeid, timeout)

if __name__ == '__main__':
    main()