#!/usr/bin/python
import socket
import RPi.GPIO as GPIO
import time


ircsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server = "irc.freenode.net" # Server
channel = "#yanniktest" # Channel
botnick = "yanniksBot" # Your bots nick
adminname = "yannik_" #Your IRC nickname. 
exitcode = "bye " + botnick



ircsock.connect((server, 6667)) # Here we connect to the server using the port 6667
ircsock.send(bytes("USER "+ botnick +" "+ botnick +" "+ botnick + " " + botnick + "\n", "UTF-8")) #We are basically filling out a form with this line and saying to set all the fields to the bot nickname.
ircsock.send(bytes("NICK "+ botnick +"\n", "UTF-8")) # assign the nick to the bot

def joinchan(chan): # join channel(s).
  ircsock.send(bytes("JOIN "+ chan +"\n", "UTF-8")) 
  ircmsg = "hey, ircmsg!"
  while ircmsg.find("End of /NAMES list.") == -1:  
    ircmsg = ircsock.recv(2048).decode("UTF-8")
    ircmsg = ircmsg.strip('\n\r')
    print(ircmsg)


def ping(): # respond to server Pings.
  ircsock.send(bytes("PONG :pingis\n", "UTF-8"))

def sendmsg(msg, target=channel): # sends messages to the target.
  ircsock.send(bytes("PRIVMSG "+ target +" :"+ msg +"\n", "UTF-8"))

def main():
  GPIO.setmode(GPIO.BCM)
  GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)

  joinchan(channel)
  prev=None
  while 1:
    #print("ein weiterer durchlauf der main-schleiffe")
    current=GPIO.input(18)
#    liste[i%2] = GPIO.input(18)
    if ( current != prev) :
      if( prev != None): 
        sendmsg("schalter wurde betätigt! {}".format(current))
        if (current == 0):
          sendmsg("es ist nun offen!")
        if (current == 1):
          sendmsg("es ist nun zu, gute nacht!")
      prev=current
    ircmsg=" "    
    time.sleep(10)
    #ircmsg = ircsock.recv(2048).decode("UTF-8")
    #ircmsg = ircmsg.strip('\n\r')
    print(ircmsg)

    if ircmsg.find("PRIVMSG") != -1:
      name = ircmsg.split('!',1)[0][1:]
      message = ircmsg.split('PRIVMSG',1)[1].split(':',1)[1]

      if len(name) < 17:
        if message.find('Hi ' + botnick) != -1:
          sendmsg("Hello " + name + "!")
        if message[:5].find('.tell') != -1:
          target = message.split(' ', 1)[1]
          if target.find(' ') != -1:
              message = target.split(' ', 1)[1]
              target = target.split(' ')[0]
          else:
              target = name
              message = "Could not parse. The message should be in the format of ‘.tell [target] [message]’ to work properly."
          sendmsg(message, target)

        if name.lower() == adminname.lower() and message.rstrip() == exitcode:
          sendmsg("oh...okay. :'(")
          ircsock.send(bytes("QUIT \n", "UTF-8"))
          return
    else:
      if ircmsg.find("PING :") != -1:
        ping()
  
main()