/**
 * 对话质量记录 vocabulary shared by the 👎 picker, the API and the admin page
 * (compliance round 2026-09-30). Client-safe: no node imports.
 */
export const REPLY_QUALITY_REASONS = ["off_topic", "inaccurate", "too_long_or_empty", "tone", "other"] as const;
export type ReplyQualityReason = (typeof REPLY_QUALITY_REASONS)[number];

/** 不满意原因, in the order the picker shows them. */
export const REPLY_QUALITY_REASON_LABELS: Readonly<Record<ReplyQualityReason, string>> = {
  off_topic: "答非所问",
  inaccurate: "内容不准",
  too_long_or_empty: "太长太空",
  tone: "语气不对",
  other: "其他",
};

export const REPLY_QUALITY_NOTE_MAX = 200;
export const REPLY_QUALITY_RETENTION_DAYS = 90;

/** 处理状态 of a 对话质量记录. */
export const REPLY_QUALITY_STATUSES = ["new", "in_progress", "resolved", "ignored"] as const;
export type ReplyQualityStatus = (typeof REPLY_QUALITY_STATUSES)[number];

export const REPLY_QUALITY_STATUS_LABELS: Readonly<Record<ReplyQualityStatus, string>> = {
  new: "待处理",
  in_progress: "处理中",
  resolved: "已解决",
  ignored: "忽略",
};

export type ReplyQualityFilter = Readonly<{
  status: ReplyQualityStatus | null;
  reason: ReplyQualityReason | null;
  modelId: string | null;
  days: number | null;
}>;

/**
 * The admin table has one filter slot; it carries `status`, `reason:<key>`,
 * `model:<id>` or `days:<n>`. Unknown values mean no filter.
 */
export function parseReplyQualityFilter(value: string | null | undefined): ReplyQualityFilter {
  const empty = { status: null, reason: null, modelId: null, days: null };
  if (!value) return empty;
  if ((REPLY_QUALITY_STATUSES as readonly string[]).includes(value)) return { ...empty, status: value as ReplyQualityStatus };
  const [kind, rest] = [value.slice(0, value.indexOf(":")), value.slice(value.indexOf(":") + 1)];
  if (kind === "reason" && (REPLY_QUALITY_REASONS as readonly string[]).includes(rest)) return { ...empty, reason: rest as ReplyQualityReason };
  if (kind === "model" && /^[\w.:/-]{1,120}$/.test(rest)) return { ...empty, modelId: rest };
  if (kind === "days" && /^\d{1,2}$/.test(rest) && Number(rest) >= 1 && Number(rest) <= 90) return { ...empty, days: Number(rest) };
  return empty;
}