from flask import Flask, render_template,request,redirect,url_for #importing flask for webpage
from flask_mail import Mail,Message #importing flask for email
import os     #importing os library
import glob   #glob library
import time   #import time
import RPi.GPIO as GPIO   #GPIO pins

app=Flask(__name__)   #declaring app

app.config.update(      #configuring app for email
	DEBUG=True,
	#EMAIL SETTINGS
	MAIL_SERVER='smtp.gmail.com',
	MAIL_PORT=465,
	MAIL_USE_SSL=True,
	MAIL_USERNAME = 'raspguzi@gmail.com',
	MAIL_PASSWORD = 'Callofduty6'
	)
mail = Mail(app)   #declaring mail variable



GPIO.setwarnings(False)      #ignores unnecessary errors
GPIO.setmode(GPIO.BCM)      #physical pin numbering
sensor=20               #pin 20
GPIO.setup(sensor,GPIO.IN)      #reads input from PIR motion sensor


try:
    def read_motion():
        while True:
            i=GPIO.input(20)
            if i==False:            #When output from motion sensor is LOW
                return("No intruders")    #display "no intruders"


            else:            #when OUTPUT FROM MOTION SENSOR IS HIGH
                return("intruder detected")   #displays "inruders"


    def read_temp_raw():  #defining the temperrature sensor

        base_dir = '/sys/bus/w1/devices/'
        device_folder = glob.glob(base_dir + '28*')[0]
        device_file = device_folder + '/w1_slave'
        f = open(device_file, 'r')
        lines = f.readlines()
        f.close()
        return lines

    def read_temp():       #reading the temperature
        lines = read_temp_raw()
        while lines[0].strip()[-3:] != 'YES':
            time.sleep(0.2)
            lines = read_temp_raw()
        equals_pos = lines[1].find('t=')
        if equals_pos != -1:
            temp_string = lines[1][equals_pos+2:]
            temp_c = int((float(temp_string) / 1000.0))
            return temp_c


    @app.route("/",methods=['GET','POST'])  #1st page, admin panel
    def login():  #function for entry
          error=""    #defining error
          try:
              if request.method=="POST":   #if loaded
                    username=request.form['username']   # user type username
                    password=request.form['password']   # user type password



                    if(username=="admin")and(password == "serverSecurity"): #if entries match
                        return redirect(url_for('motionTemp'))    #redirects to next page for readings
                    else:
                        error="Username and/or Password is invalid"    # else error message appears
              return render_template('Login.html',error=error)   #links error to html

          except Exception as ex:
               print(ex)



    @app.route("/server")   #2nd page, control panel
    def motionTemp():
        os.system('modprobe w1-gpio')    #sensor settings
        os.system('modprobe w1-therm')   #sensor settings
        read_motion()        #calling motion function to use
        read_temp()     #calling temperature function to use

        templateData={
            'motion':read_motion(),  #links motion reading w/ html
            'tempc':read_temp()    #links temperature reading w/ html
            }

        return render_template('index.html',**templateData)    #returns to index.html


    @app.route("/server/sendMail")        #3rd page sends email
    def email():

        msg = Message("Sensor Readings",        #subject
            sender="raspguzi@gmail.com",     #email from
            recipients=["jasonsch2000@gmail.com"])    #email to
        msg.body = "Dear System Administrator,/nThe Motion and Temperature sensor readings are respectively as follows: "+read_motion()+read_motion() #email sent
        mail.send(msg)    #sends email
        return 'Mail Sent!'    #confirmation

    if __name__ == "__main__":
            app.run(debug=True,host="0.0.0.0")      #hosts website


except Exception as ex:
    print("error occurred",ex)