Added Google Calendar interface script.

Author: Paul Jennings

TStatGcal.py

@@ -0,0 +1,166 @@
+#!/usr/bin/env python
+
+#Copyright (c) 2011, Paul Jennings <pjennings-tstat@pjennings.net>
+#All rights reserved.
+
+#Redistribution and use in source and binary forms, with or without 
+#modification, are permitted provided that the following conditions are met:
+#
+#    * Redistributions of source code must retain the above copyright notice, 
+#      this list of conditions and the following disclaimer.
+#    * Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions and the following disclaimer in the
+#      documentation and/or other materials provided with the distribution.
+#    * The names of its contributors may not be used to endorse or promote
+#      products derived from this software without specific prior written
+#      permission.
+
+#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+#ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+#LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+#CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+#SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+#INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+#CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+#ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+#THE POSSIBILITY OF SUCH DAMAGE.
+
+VERSION = 1.0
+
+# Minimum and maximum values for heat and cool
+# The script will never set values outside of this range
+HEAT_MIN = 55
+HEAT_MAX = 80
+COOL_MIN = 70
+COOL_MAX = 100
+
+# Valid commands
+# Remove commands that you don't want the script to execute here
+# mode in particular can be dangerous, because someone could create 
+# a 'mode off' command and turn your heat off in the winter.
+COMMANDS = ['Heat', 'Cool', 'Mode', 'Fan']
+
+try:
+  from xml.etree import ElementTree # for Python 2.5 users
+except ImportError:
+  from elementtree import ElementTree
+import gdata.calendar.service
+import gdata.service
+import atom.service
+import gdata.calendar
+
+import atom
+import datetime
+import getopt
+import os
+import sys
+import string
+import time
+
+import TStat
+
+def main(tstatAddr, username=None, password=None, calName="Thermostat"):
+	# Connect to thermostat
+	tstat = TStat.TStat(tstatAddr)
+
+	# Log in to Google
+	calendar_service = gdata.calendar.service.CalendarService()
+	calendar_service.email = username
+	calendar_service.password = password
+	calendar_service.source = "TStatGCal-%s" % VERSION
+	calendar_service.ProgrammaticLogin()
+
+	# Create date range for event search
+	today = datetime.datetime.today()
+	gmt = time.gmtime()
+	gmtDiff = datetime.datetime(gmt[0], gmt[1], gmt[2], gmt[3], gmt[4]) - today
+	tomorrow = datetime.datetime.today()+datetime.timedelta(days=2)
+
+	query = gdata.calendar.service.CalendarEventQuery()
+	query.start_min = "%04i-%02i-%02i" % (today.year, today.month, today.day)
+	query.start_max = "%04i-%02i-%02i" % (tomorrow.year, tomorrow.month, tomorrow.day)
+
+	# Look for a calendar called calName
+	feed = calendar_service.GetOwnCalendarsFeed()
+	for i, a_calendar in enumerate(feed.entry):
+		if a_calendar.title.text == calName:
+			query.feed = a_calendar.content.src
+
+	if query.feed is None:
+		print "No calendar with name '%s' found" % calName
+		return
+
+	# Search for the event that has passed but is closest to the current time
+	closest = None
+	closestDT = None
+	closestWhen = None
+	closestEvent = None
+	feed = calendar_service.CalendarQuery(query)
+	for i, an_event in enumerate(feed.entry):
+		#print '\t%s. %s' % (i, an_event.title.text,)
+		# Skip events that are not valid commands
+		(command, value) = an_event.title.text.splitlines()[0].split()
+		if command not in COMMANDS:
+			print "Warning: '%s' is not a valid command" % an_event.title.text
+			continue
+		try:
+			float(value)
+		except:
+			if value not in ['Off', 'On', 'Auto']:
+				print "Warning: '%s' is not a valid command" % an_event.title.text
+				continue
+		for a_when in an_event.when:
+			d = a_when.start_time.split("T")[0]
+			t = a_when.start_time.split("T")[1].split(".")[0]
+			(year, month, day) = [int(p) for p in d.split("-")]
+			(hour, min, sec) = [int(p) for p in t.split(":")]
+			dt = datetime.datetime(year, month, day, hour, min, sec)-gmtDiff
+			#print "DT:", dt
+			d = dt-datetime.datetime.today()
+			#print "d.days:", d.days
+
+			# Skip events that are in the future
+			if d.days >= 0:
+				continue
+
+			if closest is None:
+				closest = d
+				closestDT = dt
+				closestWhen = a_when
+				closestEvent = an_event
+			else:
+				if d.days < closest.days:
+					continue
+				if d.seconds > closest.seconds:
+					closest = d
+					closestDT = dt
+					closestWhen = a_when
+					closestEvent = an_event
+
+	if closestEvent is None:
+		print "No events found"
+		return
+
+	text = closestEvent.title.text
+	print "Closest event: %s at %s" % (text, closestDT)
+	(command, value) = text.splitlines()[0].split()
+	if command == 'Heat':
+		print "Setting heat to %s" % int(value)
+		tstat.setHeatPoint(int(value))
+	elif command == 'Cool':
+		print "Setting cool to %s" % value
+		tstat.setCoolPoint(int(value))
+	elif command == 'Fan':
+		print "Setting fan to %s" % value
+		tstat.setFanMode(value)
+	elif command == 'Mode':
+		print "Setting mode to %s" % value
+		tstat.setTstatMode(value)
+
+if __name__ == '__main__':
+	f = open(os.path.expanduser("~/.google"))
+	username = f.readline().splitlines()[0]
+	password = f.readline().splitlines()[0]
+	main(sys.argv[1], username=username, password=password, calName=sys.argv[2])