"use strict";

function transition(previous, current) {
  if (!previous) return { notify: false, state: current, kind: "baseline" };
  if (previous.ok === current.ok && previous.detail === current.detail) return { notify: false, state: current, kind: "unchanged" };
  return { notify: true, state: current, kind: current.ok ? "recovered" : "anomaly" };
}

module.exports = { transition };