function keyFor(incidentId) {
  return `insuite_draft_${incidentId}`;
}

export function saveDraft(incidentId, payload) {
  localStorage.setItem(keyFor(incidentId), JSON.stringify({
    savedAt: new Date().toISOString(),
    payload
  }));
}

export function loadDraft(incidentId) {
  const raw = localStorage.getItem(keyFor(incidentId));
  if (!raw) return null;
  try {
    return JSON.parse(raw);
  } catch {
    return null;
  }
}

export function clearDraft(incidentId) {
  localStorage.removeItem(keyFor(incidentId));
}