from ..config import CALENDAR_ICS


def run(params: dict) -> dict:
    if not CALENDAR_ICS.exists():
        return {"status": "empty", "events": []}
    try:
        from icalendar import Calendar
        cal = Calendar.from_ical(CALENDAR_ICS.read_bytes())
        events = [{"summary": str(c.get("SUMMARY", "")),
                   "start": str(c.get("DTSTART", "").dt) if c.get("DTSTART") else ""}
                  for c in cal.walk("VEVENT")]
        return {"status": "ok", "events": events[:20]}
    except Exception as e:
        return {"status": "error", "error": str(e)}