#!/usr/bin/env python2.6
"""
Search for swimming lessons on the Vancouver Aquatic Services web page
that match certain criteria.
"""

import urllib2
import json

SITES = ["WP", "VC"]
URL = "http://vancouver.ca/SafariActivityList_wa/SafariActivityListEnc.cfm" +\
      "?fmt=j&site=%s&agegroup=1&category=51"

def main():
    """ Main function """
    lessons = []
    for site in SITES:
        json_data = urllib2.urlopen(URL % site).read()
        lessons += json.loads(json_data)

    lessons = [lesson
               for lesson in lessons
               # Type of swimming lesson (Starfish only)
               if all([
               lesson['activityname'].find("Starfish") != -1,
               # Day of week (Sunday only)
               lesson['weekdays_short'].find("S") != -1,
               # Only classes with open spots
               int(lesson['numberopen']) != 0,
               # Only non-2009
               lesson['startdate'].find('2009') == -1,
              ])]

    for lesson in lessons:
        print lesson['activityname'], \
              lesson['facilityname'], \
              lesson['status'], \
              lesson['startdate'], \
              lesson['starttime'], \
              lesson['numberopen'], '/', lesson['enrollmax']

if __name__ == "__main__":
    main()