import logging

# xmpp
import slixmpp
from slixmpp.exceptions import IqError, IqTimeout
# files
import os
# config
from dotenv import load_dotenv
# gpio
import RPi.GPIO as GPIO
# sleep
import time
# hacking my godamn threads into slixmpp non threadable library
import asyncio
# webserver
from flask import Flask as f
from flask import Response

GPIO.setmode(GPIO.BCM)
GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_UP)
init = 0
app = f("web_thread")

class EchoBot(slixmpp.ClientXMPP):

    def __init__(self, jid, password):
        slixmpp.ClientXMPP.__init__(self, jid, password)

        self.add_event_handler("session_start", self.session_start)
        self.add_event_handler("message", self.message)
        self.add_event_handler("disconnect", self.reconnect)
        self.add_event_handler("connection_failed", self.reconnect)
        loop = asyncio.get_event_loop()
        asyncio.run_coroutine_threadsafe(asyncio.to_thread(app.run,host='0.0.0.0', port=80, debug=False), loop)
        asyncio.run_coroutine_threadsafe(asyncio.to_thread(self.ringLoop), loop)

    def session_start(self, event):
        self.send_presence()
        self.get_roster()

        # Most get_*/set_* methods from plugins use Iq stanzas, which
        # can generate IqError and IqTimeout exceptions
        #
        # try:
        #     self.get_roster()
        # except IqError as err:
        #     logging.error('There was an error getting the roster')
        #     logging.error(err.iq['error']['condition'])
        #     self.disconnect()
        # except IqTimeout:
        #     logging.error('Server is taking too long to respond')
        #     self.disconnect()

    def message(self, msg):
        global init
        if msg['type'] in ('chat', 'normal'):
            print (msg['body'])
            if msg['body'] == "open":
                msg.reply("Buzzing").send()
                if init == 0:
                    GPIO.setup(17, GPIO.OUT)
                    init = 1
                GPIO.output(17, GPIO.LOW)
                time.sleep(2)
                GPIO.output(17, GPIO.HIGH)
            else:
                msg.reply("Not Understood").send()
    
    def reconnect(self):
        while not self.is_connected():
            self.connect()
            time.sleep(5)

    def ringLoop(self):
        recipient = os.getenv("NOTIFY")
        debug = 0
        while True:
            #debug = debug + 1
            #if debug == 50:
            #    print (time.strftime("%d-%m|%H:%M",time.localtime()),"> GPIO OUTPUT: ", GPIO.input(23))
            #    debug = 0
            #time.sleep(0.1)
            channel = GPIO.wait_for_edge(23, GPIO.FALLING, timeout=5000)
            if channel is None:
                print (time.strftime("%d-%m|%H:%M",time.localtime()),"> GPIO OUTPUT: 1")
            else:    
            #if GPIO.input(23) == 0:
                self.send_message(mto=recipient, mbody="Klingelt!", mtype='chat')
                time.sleep(0.5)
                # self._loop.call_soon_threadsafe(self.send_message(mto=recipient, mbody="Klingelt!", mtype='chat'))
                # works too without modifying the library but throws errors everytime it's called
                print ("ringing")
                print ("ringing")
                print ("ringing")
                print ("ringing")
                print ("ringing")

    @app.route('/buzz', methods = ['GET'])
    def rbuzz():
        global init
        if init == 0:
            GPIO.setup(17, GPIO.OUT)
            init = 1
        GPIO.output(17, GPIO.LOW)
        time.sleep(2) # dumb - I know - go on
        GPIO.output(17, GPIO.HIGH)
        return "{\"status\":0}"


    @app.route('/')
    def index():
        return open("index.html", "r").read()


if __name__ == '__main__':
    load_dotenv()
    password = os.getenv("PASS")
    jid = os.getenv("JID")
    
    logging.basicConfig(level=logging.DEBUG, format='%(levelname)-8s %(message)s')
    xmpp = EchoBot(jid, password)

    xmpp.connect()
    xmpp.process(forever=True)