// bucket 0..1 signal scores (probability, impact) into human labels. the
// llm outputs a continuous number but the ui shouldnt pretend that number
// means much beyond a rough band — "12.3%" reads as false precision.
//
// thresholds are deliberately a bit generous at the bottom so that the
// failure-fallback path (0.0) lands clearly in NONE.

enum SignalBucket { none, low, medium, high }


SignalBucket bucketFor(double score) {
  if (score < 0.15) return SignalBucket.none;
  if (score < 0.40) return SignalBucket.low;
  if (score < 0.70) return SignalBucket.medium;
  return SignalBucket.high;
}


String bucketLabel(double score) {
  switch (bucketFor(score)) {
    case SignalBucket.none:   return "None";
    case SignalBucket.low:    return "Low";
    case SignalBucket.medium: return "Medium";
    case SignalBucket.high:   return "High";
  }
}