import json
import requests as r
import logging
import time
from functools import wraps
from threading import Thread


class Shoutbox(object):
    def __init__(self, cookies):
        self.channels = {'annonces': 0, 'projets': 0, 'hs': 0}
        self.cookies = cookies
        self._callbacks = []

        for channel, last_id in self.channels.items():
            messages = json.loads(r.get(f"https://www.planet-casio.com/Fr/shoutbox/api/read?since={last_id}&channel={channel}&format=text").text)['messages']
            for m in messages:
                self.channels[channel] = m['id']

    def run(self):
        def handler():
            while True:
                for channel, last_id in self.channels.items():
                    messages = json.loads(r.get(f"https://www.planet-casio.com/Fr/shoutbox/api/read?since={last_id}&channel={channel}&format=text").text)['messages']
                    for m in messages:
                        logging.debug(m)
                        self.channels[channel] = m['id']
                        message = SBMessage(m, channel)
                        for event, callback in self._callbacks:
                            if event(message):
                                logging.info(f"matched {event.__name__}")
                                callback(message)
                time.sleep(1)
        Thread(target=handler).start()

    def on(self, event):
        """ Adds a callback to the IRC handler
            Event is a function taking in parameter a SBMessage and returning
            True if the callback should be executed on the message """

        def callback(func):
            @wraps(func)
            def wrapper(message):
                func(message)
            self._callbacks.append((event, wrapper))
            logging.info(f"added callback {func.__name__}")
            return wrapper

        return callback

    def post(self, user, msg, channel, users):
        if any(user in t for t in users):
            for i in users:
                if i[1] == user:
                    r.post("https://www.planet-casio.com/Fr/shoutbox/api/post-as",
                           data={"user": i[0], "message": msg, "channel": channel},
                           cookies=self.cookies)
        else:
            r.post("https://www.planet-casio.com/Fr/shoutbox/api/post-as",
                   data={"user": "IRC", "message": f"{user} : {msg}", "channel": channel},
                   cookies=self.cookies)


class SBMessage(object):
    def __init__(self, raw, channel):
        self.author = raw['author']
        self.channel = channel
        self.text = raw['content']