#!/usr/bin/env python3
"""
Very simple HTTP server in python for logging requests
Usage::
    ./server.py [<port>]
"""
import RPi.GPIO as GPIO
import http.server
import socketserver
import logging
import sys
import os
import subprocess
import cgi
import time
GPIO.setwarnings(False)
os.system('pkill -9 httpd')
GPIO.setmode(GPIO.BCM)
pinList = [2, 3, 4, 17]
SleepTimeL=10

class S(http.server.SimpleHTTPRequestHandler):
    
    def do_GET(self):
        
        GPIO.setup(pinList[0], GPIO.OUT)
        status0=int(GPIO.input(pinList[0]))
        GPIO.setup(pinList[1], GPIO.OUT)
        status1=int(GPIO.input(pinList[1]))
        GPIO.setup(pinList[2], GPIO.OUT)
        status2=int(GPIO.input(pinList[2]))
        GPIO.setup(pinList[3], GPIO.OUT)
        status3=int(GPIO.input(pinList[3]))
        #logging.info("GET request,\nPath: %s\nHeaders:\n%s\n", str(self.path), str(self.headers))

        self._set_response()
        pass

    def do_POST(self):
        content_length = int(self.headers['Content-Length']) # <--- Gets the size of data
        post_data = self.rfile.read(content_length) # <--- Gets the data itself
        logging.info("POST request,\nPath: %s\nHeaders:\n%s\n\nBody:\n%s\n",
                str(self.path), str(self.headers), post_data.decode('utf-8'))

        self._set_response()
        self.wfile.write("POST request for {}".format(self.path).encode('utf-8'))

    def _set_response(self):
        #time.sleep(5)
        GPIO.setup(pinList[0], GPIO.OUT)
        status0=int(GPIO.input(pinList[0]))
        GPIO.setup(pinList[1], GPIO.OUT)
        status1=int(GPIO.input(pinList[1]))
        GPIO.setup(pinList[2], GPIO.OUT)
        status2=int(GPIO.input(pinList[2]))
        GPIO.setup(pinList[3], GPIO.OUT)
        status3=int(GPIO.input(pinList[3]))

        objParsedPath = str(format(self.path).encode('utf-8'))
        print ('objParsedPath="'+objParsedPath+'"')

        if objParsedPath == "b'/R0'":
          print ('R0 run')
          if status0 == 1:
             os.system('./relay.py open 0')
          else:
             os.system('./relay.py close 0')
             time.sleep(int(SleepTimeL));
             os.system('./relay.py open 0')

        if objParsedPath == "b'/R0O'":
          print ('R0 run0')
          if status0 == 1:
             os.system('./relay.py open 0')
          else:
             os.system('./relay.py close 0')



        if objParsedPath == "b'/R1'":
          print ('R1 run')
          if status1 == 1:
             os.system('./relay.py open 1')
          else:
             os.system('./relay.py close 1')
             time.sleep(int(SleepTimeL));
             os.system('./relay.py open 1')

        if objParsedPath == "b'/R1O'":
          print ('R1 run0')
          if status1 == 1:
             os.system('./relay.py open 1')
          else:
             os.system('./relay.py close 1')


        if objParsedPath == "b'/R2'":
          print ('R2 run')
          if status2 == 1:
             os.system('./relay.py open 2')
          else:
             os.system('./relay.py close 2')
             time.sleep(int(SleepTimeL));
             os.system('./relay.py open 2')

        if objParsedPath == "b'/R2O'":
          print ('R2 run0')
          if status2 == 1:
             os.system('./relay.py open 2')
          else:
             os.system('./relay.py close 2')


        if objParsedPath == "b'/R3'":
          print ('R3 run')
          if status3 == 1:
             os.system('./relay.py open 3')
          else:
             os.system('./relay.py close 3')
             time.sleep(int(SleepTimeL));
             os.system('./relay.py open 3')

        if objParsedPath == "b'/R3O'":
          print ('R3 run0')
          if status3 == 1:
             os.system('./relay.py open 3')
          else:
             os.system('./relay.py close 3')

        GPIO.setup(pinList[0], GPIO.OUT)
        status0=int(GPIO.input(pinList[0]))
        GPIO.setup(pinList[1], GPIO.OUT)
        status1=int(GPIO.input(pinList[1]))
        GPIO.setup(pinList[2], GPIO.OUT)
        status2=int(GPIO.input(pinList[2]))
        GPIO.setup(pinList[3], GPIO.OUT)
        status3=int(GPIO.input(pinList[3]))



        file = read_html_template("index.html")
        self.send_response(200, "OK")
        self.end_headers()
        print ('Relay0 = '+str(status0))
        if status0 == 0:
          file = file.replace("CHECKED1", "checked")
        else:
          file = file.replace("CHECKED1", "")

        print ('Relay1 = '+str(status1))
        if status1 == 0:
          file = file.replace("CHECKED2", "checked")
        else:
          file = file.replace("CHECKED2", "")

        print ('Relay2 = '+str(status2))
        if status2 == 0:
          file = file.replace("CHECKED3", "checked")
        else:
          file = file.replace("CHECKED3", "")

        print ('Relay3 = '+str(status3))
        if status3 == 0:
          file = file.replace("CHECKED4", "checked")
        else:
          file = file.replace("CHECKED4", "")

        self.wfile.write(bytes(file.encode("utf-8")))




def read_html_template(path):
    """function to read HTML file"""
    try:
        with open(path) as f:
            file = f.read()
    except Exception as e:
        file = e
    return file

def run(handler_class=S, port=8000):

    logging.basicConfig(level=logging.INFO)
    server_address = ('', port)
    #httpd = server_class(server_address, handler_class)
    logging.info('Starting httpd '+str(port)+' ...\n')
    try:
        Handler = http.server.SimpleHTTPRequestHandler
        with socketserver.TCPServer(server_address, handler_class) as httpd:
            httpd.serve_forever()
    except KeyboardInterrupt:
        pass
    httpd.server_close()
    logging.info('Stopping httpd...\n')

if __name__ == '__main__':
    from sys import argv

    if len(argv) == 2:
        run(port=int(argv[1]))
    else:
        run()