from typing import List, Optional
from datetime import datetime
import os
import time
import asyncio
import random

from ircserver.factory import connected_websockets
from ircserver.factory import irc_bot as bot
import settings


msg_queue = asyncio.Queue()
messages = []


@bot.on('CLIENT_CONNECT')
async def connect(**kwargs):
    bot.send('NICK', nick=settings.IRC_NICK)
    bot.send('USER', user=settings.IRC_NICK, realname=settings.IRC_REALNAME)

    # Don't try to join channels until server sent MOTD
    done, pending = await asyncio.wait(
        [bot.wait("RPL_ENDOFMOTD"), bot.wait("ERR_NOMOTD")],
        loop=bot.loop,
        return_when=asyncio.FIRST_COMPLETED
    )

    # Cancel whichever waiter's event didn't come in.
    for future in pending:
        future.cancel()

    bot.send('JOIN', channel=settings.IRC_CHANNEL)


@bot.on('PING')
def keepalive(message, **kwargs):
    bot.send('PONG', message=message)


@bot.on('client_disconnect')
def reconnect(**kwargs):
    from quart import current_app as app
    app.logger.warning("Lost IRC server connection")
    time.sleep(3)
    bot.loop.create_task(bot.connect())
    app.logger.warning("Reconnecting to IRC server")


@bot.on('PRIVMSG')
async def message(nick, target, message, **kwargs):
    if nick == settings.IRC_NICK:
        return
    if target == settings.IRC_NICK:
        target = nick

    msg = message
    now = datetime.now()
    now = time.mktime(now.timetuple())
    data = {"nick": nick, "message": msg, "date": now}
    for ws in connected_websockets:
        await ws.put({"data": [data]})
    messages.append(data)

    if len(messages) > 20:
        messages.pop(0)


def start():
    bot.loop.create_task(bot.connect())