import os
import smtplib
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart
import picamera
import RPi.GPIO as GPIO
from time import sleep

GPIO.setmode(GPIO.BCM)
GPIO.setup(4, GPIO.IN)

subject = "An intruder has been detected"
to = "Google Username"
UserName = to
UserPassword = "Google Password"

camera = picamera.PiCamera()

def SendMail(ImgFileName):
    img_data = open(ImgFileName, 'rb').read()
    msg = MIMEMultipart()
    msg['Subject'] = subject
    msg['From'] = to
    msg['To'] = to

    text = MIMEText("Here is an attached image of the intruder")
    msg.attach(text)
    image = MIMEImage(img_data, name=os.path.basename(ImgFileName))
    msg.attach(image)

    s = smtplib.SMTP("smtp.gmail.com:587")
    s.ehlo()
    s.starttls()
    s.ehlo()
    s.login(UserName, UserPassword)
    s.sendmail(to, to, msg.as_string())
    print("Sending mail")
    s.quit()

def takePicture(channel):
    camera.capture('image.jpg')
    SendMail('image.jpg')  
    os.remove('image.jpg')
    sleep(20)
    

GPIO.add_event_detect(4, GPIO.RISING, callback=takePicture, bouncetime=500)

while True:
    pass