Get a Telegram reminder before each meeting

from datetime import datetime, timedelta, timezone
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from clickruntime import on_trigger, credentials, http, ai, state, report_fetched
CHAT_ID = "your-telegram-chat-id"

@on_trigger
def run(event):
    cal = build("calendar", "v3", credentials=Credentials(credentials.connection("google", "work")), cache_discovery=False)
    now = datetime.now(timezone.utc)
    items = cal.events().list(calendarId="primary", timeMin=now.isoformat(), timeMax=(now + timedelta(minutes=15)).isoformat(),
                              singleEvents=True).execute().get("items", [])
    sent = state.get("sent") or []
    new = [e for e in items if "dateTime" in e["start"] and e["id"] not in sent]
    report_fetched(len(new))
    if not new:
        return {"reminded": 0}
    token = credentials.secret("TELEGRAM_BOT_TOKEN")
    for e in new:
        details = f"{e.get('summary')}\n{(e.get('description') or '')[:800]}\nWith: {', '.join(a['email'] for a in e.get('attendees', []))}"
        try:
            note = ai.generate(f"One short prep line for this meeting:\n{details}", max_output_tokens=60).text.strip()
        except (ai.AINotIncluded, ai.AILimitReached):
            note = (e.get("description") or "")[:120]
        link = e.get("hangoutLink") or e.get("location", "")
        text = f"⏰ {e['start']['dateTime'][11:16]} {e.get('summary')}\n{link}\n{note}"
        http.post(f"https://api.telegram.org/bot{token}/sendMessage", json={"chat_id": CHAT_ID, "text": text})
        sent.append(e["id"])
    state.set("sent", sent[-200:])
    return {"reminded": len(new)}