export const RULE_TYPE_LABEL: Record<string, string> = {
  keyword_match: '关键词匹配',
  response_time: '响应时长',
  llm_score: 'LLM 评分',
}

export const RULE_TYPE_DESC: Record<string, string> = {
  keyword_match: '关键词命中比例',
  response_time: '智能体首响时延',
  llm_score: '大模型综合评分 (0–10)',
}

export function ruleTypeLabel(type: string): string {
  return RULE_TYPE_LABEL[type] || type
}

/** Convert stored score (0–1) into a human-readable display in the rule's natural unit. */
export function formatRuleScore(type: string, score?: number | null): string {
  if (score == null) return '-'
  switch (type) {
    case 'keyword_match':
      return `${Math.round(score * 100)}%`
    case 'llm_score':
      return `${(score * 10).toFixed(1)}/10`
    case 'response_time':
      // score is inverted latency ratio; not directly meaningful. Show raw score.
      return score.toFixed(2)
    default:
      return score.toFixed(2)
  }
}