Mark no-shows in Calendly for you

from datetime import datetime, timedelta, timezone
from clickruntime import on_trigger, credentials, http, state, notify

API = "https://api.calendly.com"

@on_trigger
def run(event):
    h = {"Authorization": f"Bearer {credentials.secret('CALENDLY_TOKEN')}"}
    me = http.get(f"{API}/users/me", headers=h).json()["resource"]["uri"]
    now = datetime.now(timezone.utc)
    events = http.get(f"{API}/scheduled_events", headers=h, params={
        "user": me, "status": "active",
        "min_start_time": (now - timedelta(hours=3)).isoformat(), "max_start_time": now.isoformat(),
    }).json()["collection"]
    attended = set(state.get("attended") or [])
    marked = []
    for ev in events:
        ended = datetime.fromisoformat(ev["end_time"].replace("Z", "+00:00"))
        if not (now - timedelta(hours=2) < ended <= now - timedelta(hours=1)):
            continue
        uuid = ev["uri"].rsplit("/", 1)[-1]
        for inv in http.get(f"{API}/scheduled_events/{uuid}/invitees", headers=h).json()["collection"]:
            if inv["email"] in attended or inv.get("no_show"):
                continue
            http.post(f"{API}/invitee_no_shows", headers=h, json={"invitee": inv["uri"]})
            marked.append(f"{inv['name']} – {ev['name']}")
    if marked:
        notify.email_me(f"Marked {len(marked)} no-show(s)", "\n".join(marked))
    return {"marked": len(marked)}