# Hardware Gmail notifier for RPi
# based on the notifier from Mitchtech
# http://mitchtech.net/raspberry-pi-physical-gmail-notifier/

## My LEDboard is common 3V3 wired (GPIO=True -> LED=Off)
## if your LEDboard is common GND you have to change all True into False and vice versa

from os.path import exists
import RPi.GPIO as GPIO, feedparser

file=".unreadmail.txt"

# insert your username and password
USERNAME="[USERNAME]@gmail.com"
PASSWORD="[PASSWORD]"

# if .unreadmail.txt doesn't exists the script wont work
# the following lines check if the file exists and create it if needed
if exists(file) == False:
        data = open(file, 'w')
        data.write("0")
        data.close()

# edit these two value depending on your pin wiring
PIN_mail=7
PIN_check=13


data = open(file, 'r')
status=int(data.read())
data.close()

GPIO.setup(PIN_mail, GPIO.OUT)
GPIO.setup(PIN_check, GPIO.OUT)
GPIO.output(PIN_check, False)

# notification LED is turned on/off depending on .unreadmail.txt
if status == 0:
        GPIO.output(PIN_mail, True)
else:
        GPIO.output(PIN_mail, False)

# notification parsing
newmails = int(feedparser.parse("https://" + USERNAME + ":" + PASSWORD + "@mail.google.com/gmail/feed/atom")["feed"]["fullcount"])

# output on .unreadmail.txt and GPIO
data = open(file, 'w')
if newmails > 0:
        GPIO.output(PIN_mail, False)
        data.write("1")

else:
        GPIO.output(PIN_mail, True)
        data.write("0")

GPIO.output(PIN_check, True)
data.close()