schneiderbot-tg/schneiderbot.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
from telegram import ParseMode
import logging
import random
import requests
import datetime

MENSA_URL = {
    "zentral": "zentralmensa",
    "nord": "nordmensa",
    "turm": "turmmensa"
}
MENSA_NAME = {
    "zentral": "Zentralmensa",
    "nord": "Nordmensa",
    "turm": "Turmmensa"
}

# Enable logging
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
                    level=logging.INFO)

logger = logging.getLogger(__name__)

with open("stoll.txt", "r") as tmp_file:
    STOLL = tmp_file.readlines()

with open("manta.txt", "r") as tmp_file:
    MANTA = tmp_file.readlines()

# Define a few command handlers. These usually take the two arguments bot and
# update. Error handlers also receive the raised TelegramError object in error.
def start(bot, update):
    """Was ist das hier für eins Bot?"""
    update.message.reply_text("""Hallo, ich bin ein Bot.
Ich liefere tolle Informationen über die Mensa. Die Infos kommen von
https://mensa.schneider-hosting.de
Mhmm, lecker. Guten Appetit!""")

def help(bot, update):
    """Send a message when the command /help is issued."""
    update.message.reply_text('Help!')

def magie(bot, update):
    """MAGIEEEEEE"""
    rand = random.SystemRandom()
    update.message.reply_text(STOLL[rand.randrange(0, len(STOLL), 1)])

def manta(bot, update):
    """Boah ey, geile Karre!"""
    rand = random.SystemRandom()
    update.message.reply_text(MANTA[rand.randrange(0, len(MANTA), 1)])

def mensa(bot, update, args):
    which = "zentral"
    if len(args):
        which = args[0]

    if which not in MENSA_NAME:
        update.message.reply_text("Diese Mensa gibt es nicht! RTFM und versuchs nochmal.")
        return

    today = datetime.datetime.now().date().weekday() + 1
    today = 2
    if datetime.datetime.now().time() > datetime.time(hour=16):
        # Es ist zu spät am Tag, zeig das essen für morgen an
        today += 1

    today = today % 7

    url = "https://mensa.schneider-hosting.de/static/%s.%d.json" % (MENSA_URL[which], today)
    request = requests.get(url)
    request.encoding = 'utf-8'
    data = request.json()

    message = "Das Essen für %s in der %s \n" % (data["date"], MENSA_NAME[which])
    
    if len(data["meals"]) > 0:
        for meal in data["meals"]:
            meal_line = "*%s*\n" % meal["category"]
            meal_line += meal["title"].strip() + "\n"

        # Discord only allows up to 2000 chars per message
            if len(message) + len(meal_line) > 2000:
                update.message.reply_text(message, parse_mode=ParseMode.MARKDOWN)
                message = meal_line + "\n"
            else:
                message += meal_line + "\n"
        update.message.reply_text(message, parse_mode=ParseMode.MARKDOWN)
    else:
        update.message.reply_text("Nix zu futtern heute :(")


def echo(bot, update):
    """Echo the user message."""
    update.message.reply_text(update.message.text)


def error(bot, update, error):
    """Log Errors caused by Updates."""
    logger.warning('Update "%s" caused error "%s"', update, error)


def main():
    """Start the bot."""
    # Create the EventHandler and pass it your bot's token.
    token = open("token").read()
    updater = Updater(token.strip())

    # Get the dispatcher to register handlers
    dp = updater.dispatcher

    # on different commands - answer in Telegram
    dp.add_handler(CommandHandler("start", start))
    dp.add_handler(CommandHandler("help", help))
    dp.add_handler(CommandHandler("magie", magie))
    dp.add_handler(CommandHandler("manta", manta))
    dp.add_handler(CommandHandler("mensa", mensa, pass_args=True))


    # log all errors
    dp.add_error_handler(error)

    # Start the Bot
    updater.start_polling()

    # Run the bot until you press Ctrl-C or the process receives SIGINT,
    # SIGTERM or SIGABRT. This should be used most of the time, since
    # start_polling() is non-blocking and will stop the bot gracefully.
    updater.idle()


if __name__ == '__main__':
    main()