#!/usr/bin/python
# Copyright (c) 2014 Adafruit Industries
# Author: Tony DiCola

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import sys
import time
import Adafruit_DHT
import smtplib



# Parse command line parameters.
sensor_args = { '11': Adafruit_DHT.DHT11,
				'22': Adafruit_DHT.DHT22,
				'2302': Adafruit_DHT.AM2302 }
if len(sys.argv) == 4 and sys.argv[1] in sensor_args:
	sensor = sensor_args[sys.argv[1]]
	pin = sys.argv[2]
	caution = int(sys.argv[3])
else:
	print 'usage: sudo ./Adafruit_DHT.py [11|22|2302] GPIOpin#'
	print 'example: sudo ./Adafruit_DHT.py 2302 4 - Read from an AM2302 connected to GPIO #4'
	sys.exit(1)


# Try to grab a sensor reading.  Use the read_retry method which will retry up
# to 15 times to get a sensor reading (waiting 2 seconds between each retry).
while True:
	humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
	if humidity is not None and temperature is not None:
		msg =  'Temp={0:0.1f}*  Humidity={1:0.1f}%'.format(temperature, humidity)
		if (int(temperature) >= caution):
			 smtpUser = 'zzz'
			 smtpPass = 'zzz'
			 toAdd = 'zzz'
			 fromAdd = smtpUser
			 subject = 'Warning Temp'
			 header = 'To: ' + toAdd + '\n' + 'From: ' + fromAdd + '\n' + 'Subject: ' + subject
			 body = msg
			 print header + '\n' + body
			 s = smtplib.SMTP('smtp.gmail.com',587)
			 s.ehlo()
			 s.starttls()
			 s.ehlo()
			 s.login(smtpUser,smtpPass)
			 s.sendmail(fromAdd, toAdd, header + '\n' + body)
			 s.quit()
			 time.sleep(60)
	else:
		print 'Failed to get reading. Try again!'
		sys.exit(1)
# Un-comment the line below to convert the temperature to Fahrenheit.
# temperature = temperature * 9/5.0 + 32

# Note that sometimes you won't get a reading and
# the results will be null (because Linux can't
# guarantee the timing of calls to read the sensor).
# If this happens try again!