Get a research brief before external meetings

from datetime import datetime, timedelta, timezone
from bs4 import BeautifulSoup
from googleapiclient.discovery import build
from google.oauth2.credentials import Credentials
from clickruntime import on_trigger, credentials, state, notify, ai, http

MY_DOMAIN, FOLDER = "northwind.example", "briefs-folder-id"

@on_trigger
def run(event):
    creds = Credentials(credentials.connection("google", "work"))
    now = datetime.now(timezone.utc)
    events = build("calendar", "v3", credentials=creds, cache_discovery=False).events().list(calendarId="primary",
             timeMin=now.isoformat(), timeMax=(now + timedelta(days=1)).isoformat(), singleEvents=True).execute()["items"]
    done = state.get("done") or []
    for e in events:
        domains = {a["email"].split("@")[1] for a in e.get("attendees", [])} - {MY_DOMAIN, "gmail.com"}
        if e["id"] in done or not domains:
            continue
        domain = sorted(domains)[0]
        page = BeautifulSoup(http.get(f"https://{domain}", timeout=10).text, "html.parser").get_text(" ", strip=True)[:6000]
        brief = ai.generate(f"Write a one-page pre-call brief on {domain} for '{e.get('summary')}':\n{page}", max_output_tokens=700).text
        doc = http.post("https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart", headers={"Authorization": f"Bearer {creds.token}"},
                        files={"metadata": (None, f'{{"name": "Brief - {domain}", "mimeType": "application/vnd.google-apps.document", "parents": ["{FOLDER}"]}}', "application/json"),
                               "file": ("b.txt", brief, "text/plain")}).json()
        notify.email_me(f"Brief: {e.get('summary')}", f"https://docs.google.com/document/d/{doc['id']}/edit")
        done.append(e["id"])
    state.set("done", done[-300:])
    return {"briefs": len(done)}