from requests import post as r_post
from json import dumps
from flask import session, current_app
from suchwow.models import Moderator
from suchwow import config


def allowed_file(filename):
    return "." in filename and \
           filename.rsplit(".", 1)[1].lower() in config.ALLOWED_EXTENSIONS

def is_moderator(username):
    m = Moderator.filter(username=username)
    if m:
        return True
    else:
        return False

def get_session_user():
    if "auth" not in session or not session["auth"]:
        return None
    return session["auth"]["preferred_username"]

def post_webhook(msg):
    try:
        if current_app.config["DEBUG"]:
            msg = "[DEBUG] " + msg
        data = {
            "text": msg,
            "channel": config.MM_CHANNEL,
            "username": config.MM_USERNAME,
            "icon_url": config.MM_ICON
        }
        res = r_post(config.MM_ENDPOINT, data=dumps(data))
        res.raise_for_status()
        return True
    except:
        return False