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#!/usr/bin/env python
import urllib
import contextlib
import json
import time
import os
from credentials import *
from twitter import *
from datetime import datetime
class SublabStatus(object):
json = None
def get_json(self):
if self.json is not None:
return self.json
with contextlib.closing(urllib.urlopen('http://beaglebone.local.sublab.org/')) as response:
self.json = json.load(response)
return self.json
def door_status(self):
try:
self.get_json()
except Exception:
return 'unkown'
door_status = self.json['door.lock']
if door_status['ts'] + 120 < time.time():
return 'unknown'
if not door_status['value']:
return 'open'
else:
return 'closed'
def tweet(status, last_change):
# Contents of the status tweet
# Max. 110 Characters, or tweet will be too long!
SEPARATOR = ' - '
DATE_MSG = 'Last change was on'
SUBLAB_CLOSED = 'OH NOEZ! @sublab is now closed.' + SEPARATOR + DATE_MSG + ' '
SUBLAB_OPEN = 'YAY! @sublab is now open' + SEPARATOR + DATE_MSG + ' '
if status == 'open':
tweet = SUBLAB_OPEN + last_change
elif status == 'closed':
tweet = SUBLAB_CLOSED + last_change
if len(tweet) <= 140:
#instance of the twitter-class to post status changes
t = Twitter(auth=OAuth(token,
token_key,
con_secret,
con_secret_key))
t.statuses.update(status=tweet)
def update_css(colors):
css = '''
span.sublabopen {
color: %s;
}
span.sublabclosed {
color: %s;
}
#statusimage {
background: url(../img/%s) ;
height: 100px;
width: 100px;
position: absolute;
right: 20px;
}
''' % colors
path = os.path.realpath(os.path.dirname(__file__))
path = os.path.join(path, '..', 'public', 'css', 'sublab.status.css')
path_new = path + '.new'
with open(path_new, 'w') as css_file:
css_file.write(css)
os.rename(path_new, path)
def save_statusfile(STATUSFILE, status):
date_now = datetime.now().strftime("%a %d. %b %Y at %H:%M")
with open(STATUSFILE, 'w') as status_file:
status_file.write(status + '\n' + date_now + '\n')
if __name__ == '__main__':
STATUSFILE = '/tmp/sublab-doorstatus.last'
# instance of class which gets current status
s = SublabStatus()
status = s.door_status()
# read file with last status
with open(STATUSFILE, 'r') as status_file:
old_status = status_file.readline().rstrip()
last_change = status_file.readline().rstrip()
# check if status changed, if yes, update css and tweet it
if status == 'open' and old_status == 'closed':
save_statusfile(STATUSFILE, status)
update_css('#0f0', '#222', 'status-open.png')
try:
tweet('open', last_change)
except TweetLengthException:
print("Tweet was too long")
elif status == 'closed' and old_status == 'open':
save_statusfile(STATUSFILE, status)
update_css('#222', '#f00', 'status-closed.png')
try:
tweet('closed', last_change)
except TweetLengthException:
print("Tweet was too long")
else:
update_css = ('#222', '#222', 'status-unknown.png')
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