/
nightscout_osx_menubar.py
255 lines (218 loc) · 8.15 KB
/
nightscout_osx_menubar.py
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# -*- coding: utf-8 -*-
import os
import sys
import traceback
import webbrowser
from ConfigParser import ConfigParser
from datetime import datetime
import requests
import rumps
import simplejson
VERSION = '0.3.3'
APP_NAME = 'Nightscout Menubar'
PROJECT_HOMEPAGE = 'https://github.com/mddub/nightscout-osx-menubar'
SGVS_PATH = '/api/v1/entries/sgv.json?count={count}'
UPDATE_FREQUENCY_SECONDS = 20
MAX_SECONDS_TO_SHOW_DELTA = 600
HISTORY_LENGTH = 5
MAX_BAD_REQUEST_ATTEMPTS = 3
REQUEST_TIMEOUT_SECONDS = 2
################################################################################
# Display options
MENUBAR_TEXT = u"{sgv} {direction} {delta} [{time_ago}]"
MENU_ITEM_TEXT = u"{sgv} {direction} {delta} [{time_ago}]"
def time_ago(seconds):
if seconds >= 3600:
return "%sh" % (seconds / 3600)
elif seconds >= 60:
return "%sm" % (seconds / 60)
else:
return "%ss" % seconds
################################################################################
class NightscoutException(Exception): pass
class NightscoutConfig(object):
FILENAME = 'config'
SECTION = 'NightscoutMenubar'
HOST = 'nightscout_host'
USE_MMOL = 'use_mmol'
def __init__(self, app_name):
self.config_path = os.path.join(rumps.application_support(app_name), self.FILENAME)
self.config = ConfigParser()
self.config.read([self.config_path])
if not self.config.has_section(self.SECTION):
self.config.add_section(self.SECTION)
if not self.config.has_option(self.SECTION, self.HOST):
self.set_host('')
if not self.config.has_option(self.SECTION, self.USE_MMOL):
self.set_use_mmol(False)
def get_host(self):
return self.config.get(self.SECTION, self.HOST)
def set_host(self, host):
self.config.set(self.SECTION, self.HOST, host)
with open(self.config_path, 'w') as f:
self.config.write(f)
def get_use_mmol(self):
return bool(self.config.get(self.SECTION, self.USE_MMOL))
def set_use_mmol(self, mmol):
self.config.set(self.SECTION, self.USE_MMOL, 'true' if mmol else '')
with open(self.config_path, 'w') as f:
self.config.write(f)
config = NightscoutConfig(APP_NAME)
def maybe_convert_units(mgdl):
return round(mgdl / 18.0, 1) if config.get_use_mmol() else mgdl
def update_menu(title, items):
app.title = title
app.menu.clear()
app.menu.update(items + last_updated_menu_items() + post_history_menu_options() + [app.quit_button])
def last_updated_menu_items():
return [
None,
"Updated %s" % datetime.now().strftime("%a %-I:%M %p"),
]
def post_history_menu_options():
mgdl = rumps.MenuItem('mg/dL', callback=choose_units_mgdl)
mgdl.state = not config.get_use_mmol()
mmol = rumps.MenuItem('mmol/L', callback=choose_units_mmol)
mmol.state = config.get_use_mmol()
open_ns_url = rumps.MenuItem('Open Nightscout site...', callback=None)
if config.get_host():
open_ns_url.set_callback(open_nightscout_url)
items = [
None,
[
'Settings',
[
mgdl,
mmol,
None,
rumps.MenuItem('Set Nightscout URL...', callback=configuration_window),
rumps.MenuItem('Help...', callback=open_project_homepage),
None,
"Version {}".format(VERSION)
],
],
None,
open_ns_url,
None,
]
return items
def get_entries(retries=0, last_exception=None):
if retries >= MAX_BAD_REQUEST_ATTEMPTS:
print "Retried too many times: %s" % last_exception
raise NightscoutException(last_exception)
try:
resp = requests.get(
config.get_host() + SGVS_PATH.format(count=(HISTORY_LENGTH + 1)),
# For the sake of keeping this portable without adding a lot of complexity, don't verify SSL certificates.
# https://github.com/kennethreitz/requests/issues/557
verify=False,
# Don't let bad connectivity cause the app to freeze
timeout=REQUEST_TIMEOUT_SECONDS,
)
except requests.exceptions.Timeout, e:
# Don't retry timeouts, since the app is unresponsive while a request is in progress,
# and a new request will be made in UPDATE_FREQUENCY_SECONDS seconds anyway.
print "Timed out: %s" % repr(e)
raise NightscoutException(repr(e))
except requests.exceptions.RequestException, e:
return get_entries(retries + 1, repr(e))
if resp.status_code != 200:
return get_entries(retries + 1, "Nightscout returned status %s" % resp.status_code)
try:
arr = resp.json()
if type(arr) == list and (len(arr) == 0 or type(arr[0]) == dict):
return arr
else:
return get_entries(retries + 1, "Nightscout returned bad data")
except simplejson.scanner.JSONDecodeError:
return get_entries(retries + 1, "Nightscout returned bad JSON")
def filter_bgs(entries):
bgs = [e.copy() for e in entries if 'sgv' in e]
for bg in bgs:
bg['sgv'] = int(bg['sgv'])
return bgs
def seconds_ago(timestamp):
return int(datetime.now().strftime('%s')) - timestamp / 1000
def get_direction(entry):
return {
'DoubleUp': u'⇈',
'SingleUp': u'↑',
'FortyFiveUp': u'↗',
'Flat': u'→',
'FortyFiveDown': u'↘',
'SingleDown': u'↓',
'DoubleDown': u'⇊',
}.get(entry.get('direction'), '-')
def get_delta(last, second_to_last):
return ('+' if last['sgv'] >= second_to_last['sgv'] else u'−') + str(abs(maybe_convert_units(last['sgv'] - second_to_last['sgv'])))
def get_menubar_text(entries):
bgs = filter_bgs(entries)
last, second_to_last = bgs[0:2]
if (last['date'] - second_to_last['date']) / 1000 <= MAX_SECONDS_TO_SHOW_DELTA:
delta = get_delta(last, second_to_last)
else:
delta = '?'
return MENUBAR_TEXT.format(
sgv=maybe_convert_units(last['sgv']),
delta=delta,
direction=get_direction(last),
time_ago=time_ago(seconds_ago(last['date'])),
)
def get_history_menu_items(entries):
bgs = filter_bgs(entries)
return [
MENU_ITEM_TEXT.format(
sgv=maybe_convert_units(e['sgv']),
delta=get_delta(e, bgs[i + 1]) if i + 1 < len(bgs) else '?',
direction=get_direction(e),
time_ago=time_ago(seconds_ago(e['date'])),
)
for i, e in enumerate(bgs)
][1:HISTORY_LENGTH + 1]
@rumps.timer(UPDATE_FREQUENCY_SECONDS)
def update_data(sender):
entries = None
try:
try:
entries = get_entries()
except NightscoutException, e:
if config.get_host():
update_menu("<?>", [e.message[:100]])
else:
update_menu("<Need settings>", [])
else:
update_menu(get_menubar_text(entries), get_history_menu_items(entries))
except Exception, e:
print "Nightscout data: " + simplejson.dumps(entries)
print repr(e)
_, _, tb = sys.exc_info()
traceback.print_tb(tb)
update_menu("<!>", [repr(e)[:100]])
def configuration_window(sender):
window = rumps.Window(
title='Nightscout Menubar Configuration',
message='Enter your nightscout URL below.\n\nIt probably looks like:\nhttps://SOMETHING.azurewebsites.net',
dimensions=(320, 22),
)
window.default_text = config.get_host()
window.add_buttons('Cancel')
response = window.run()
if response.clicked == 1:
config.set_host(response.text.strip())
update_data(None)
def open_project_homepage(sender):
webbrowser.open_new(PROJECT_HOMEPAGE)
def open_nightscout_url(sender):
webbrowser.open_new(config.get_host())
def choose_units_mgdl(sender):
config.set_use_mmol(False)
update_data(None)
def choose_units_mmol(sender):
config.set_use_mmol(True)
update_data(None)
if __name__ == "__main__":
if len(sys.argv) > 1 and sys.argv[1] == '--debug':
rumps.debug_mode(True)
app = rumps.App(APP_NAME, title='<Connecting to Nightscout...>')
app.menu = ['connecting...'] + post_history_menu_options()
app.run()