"""Structured log-event telemetry (SD-0002 §9.1). One JSON object per event on the
`ecomm.telemetry` logger — counts and durations only; never file names, URLs,
catalog content, or secret bytes (§6.3-handbook)."""
from __future__ import annotations

import json
import logging

_logger = logging.getLogger("ecomm.telemetry")


def emit(event: str, **fields: object) -> None:
    _logger.info(json.dumps({"event": event, **fields}, sort_keys=True, default=str))