import RPi.GPIO as GPIO
import time
import os
import sys
import signal
from datetime import datetime
import smtplib

from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
from email.MIMEBase import MIMEBase


def connect():
    server = smtplib.SMTP()
    server.connect('smtp.gmail.com')
    server.starttls()
    server.login("fedorjaro@gmail.com", "u7fw8DFK")
    return server

def host_on():
    hostname = "192.168.0.102"
    response = os.system("ping -c 1 " + hostname)
    # and then check the response...
    if response == 0:
        pingstatus = True
    else:
        pingstatus = False
    return pingstatus

def send_mail(server, msg):
    try:
        server.sendmail("fedorjaro@gmail.com", "fedorjaro@gmail.com", msg.as_string())
    except Exception:
        server = connect()
        server.sendmail("fedorjaro@gmail.com", "fedorjaro@gmail.com", msg.as_string())
    return server

# Set Broadcom mode so we can address GPIO pins by number.
GPIO.setmode(GPIO.BCM)



DOOR_SENSOR_PIN = 23


# Initially we don't know if the door sensor is open or closed...
isOpen = None
oldIsOpen = None
server = connect()

GPIO.setup(DOOR_SENSOR_PIN, GPIO.IN, pull_up_down = GPIO.PUD_UP)

while True:
    oldIsOpen = isOpen
    isOpen = GPIO.input(DOOR_SENSOR_PIN)
    msg = MIMEMultipart()
    addr = "fedorjaro@gmail.com"
    msg['From'] = addr
    msg['To'] = addr
    if (isOpen and (isOpen != oldIsOpen)):
        msg['Subject'] = "HOM3: " + str(datetime.now()) + " Door open!"
        server = send_mail(server, msg)
        os.system("echo \"OPEN\" > /home/pi/door_state.txt")
    elif (isOpen != oldIsOpen):
        msg['Subject'] = "HOM3: "+str(datetime.now()) + " Door closed!"
        server = send_mail(server, msg)
        os.system("e