108 lines
3.1 KiB
Python
108 lines
3.1 KiB
Python
import asyncio
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import logging
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import pickle
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import textwrap
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from asyncio import sleep
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import aiohttp
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import arrow
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from ics import Calendar
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from config import Config
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config = Config()
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class State:
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notified = []
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notified_soon = []
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def process_event(event, template):
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if event.begin.hour == event.begin.minute == 0:
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date_fmt = 'dddd, D. MMMM YYYY'
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else:
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date_fmt = 'HH:mm / dddd, D. MMMM YYYY'
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date = event.begin.format(date_fmt, locale='cs_CZ')
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when = event.begin.humanize()
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location = f"@ {event.location}" if event.location else ""
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description = event.description or ""
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description = description.strip()
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if description:
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lines = description.splitlines()
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if "http" in lines[0]:
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url = lines[0].strip()
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description = "\n".join(lines[1:])
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else:
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url = ""
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else:
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url = ""
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description = description or "???"
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description = textwrap.shorten(description, width=512, placeholder="...")
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return template.format(
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title=event.name,
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date=date,
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location=location,
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when=when,
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url=url,
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description=description
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)
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async def send_message(text):
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async with aiohttp.ClientSession() as session:
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await session.post(config.WEBHOOK_URL, json={
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"text": text,
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"format": "html",
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"displayName": "PUBLIC INFORMATION STREAMS & SERVICES",
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"avatarUrl": "http://i.imgur.com/IDOBtEJ.png"
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})
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async def main():
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try:
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with open('state.pickle', 'rb') as state_fp:
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state = pickle.load(state_fp)
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except FileNotFoundError:
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state = State()
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while True:
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calendars = []
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async with aiohttp.ClientSession() as session:
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for url in config.URLS:
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logging.debug(f"Requesting {url}...")
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async with session.get(url) as resp:
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calendars.append(Calendar(await resp.text()))
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future_events = [event for calendar in calendars for event in calendar.events if event.begin > arrow.now()]
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logging.debug(f"Got {len(future_events)} future events...")
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for event in future_events:
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if event.name not in state.notified and event.begin.shift(days=-2) < arrow.now():
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await send_message(process_event(event, config.EVENT_TEMPLATE))
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state.notified.append(event.name)
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if event.name not in state.notified_soon and event.begin.shift(hours=-2) < arrow.now():
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await send_message(process_event(event, config.SOON_TEMPLATE))
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state.notified_soon.append(event.name)
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with open('state.pickle', 'wb') as state_fp:
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pickle.dump(state, state_fp)
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logging.debug("Sleeping for 60s...")
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await sleep(60)
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if __name__ == '__main__':
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logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - [%(levelname)s] %(message)s')
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if config.WEBHOOK_URL is None:
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raise RuntimeError("WEBHOOK_URL is not defined.")
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loop = asyncio.get_event_loop()
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loop.run_until_complete(main())
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