Post today's absences to Slack

from datetime import date
from clickruntime import on_trigger, credentials, http, notify

def personio(path, **params):
    auth = http.post("https://api.personio.de/v1/auth", json={
        "client_id": credentials.secret("PERSONIO_CLIENT_ID"),
        "client_secret": credentials.secret("PERSONIO_CLIENT_SECRET")}).json()["data"]["token"]
    resp = http.get(f"https://api.personio.de/v1/{path}", headers={"Authorization": f"Bearer {auth}"}, params=params)
    resp.raise_for_status()
    return resp.json()["data"]

def val(emp, key):
    v = emp["attributes"].get(key, {}).get("value")
    return v.get("attributes", {}).get("name") if isinstance(v, dict) else v

@on_trigger
def run(event):
    today = str(date.today())
    absences = personio("company/time-offs", start_date=today, end_date=today, limit=200)
    lines = []
    for a in absences:
        attrs = a["attributes"]
        emp = attrs["employee"]["attributes"]
        lines.append(f"• {emp['first_name']['value']} {emp['last_name']['value']}: {attrs['time_off_type']['attributes']['name']}")
    notify.slack("Absent today:\n" + "\n".join(lines) if lines else "Nobody is absent today.", channel="#office")
    return {"absent": len(lines)}