/** 帖子类型 / 可见性 / 展示文案（前后端共用约定） */

export const POST_TYPES = [
  { value: "discussion", label: "讨论", hint: "默认讨论帖" },
  { value: "question", label: "问答", hint: "提问求解" },
  { value: "poll", label: "投票", hint: "发起投票，读者可参与" },
  { value: "bounty", label: "悬赏", hint: "发布时托管积分，采纳后发放" },
  { value: "lottery", label: "抽奖", hint: "回帖即参与，截止自动开奖" },
] as const;

export type PostTypeValue = (typeof POST_TYPES)[number]["value"];

export const CONTENT_ACCESS = [
  { value: "public", label: "公开" },
  { value: "login", label: "登录可见" },
  { value: "reply", label: "回复可见" },
  { value: "points", label: "积分可见" },
] as const;

export type ContentAccessValue = (typeof CONTENT_ACCESS)[number]["value"];

export const BOUNTY_EXPIRE_DAYS = [3, 7, 14, 30] as const;
export const LOTTERY_EXPIRE_DAYS = [1, 3, 7, 14] as const;

export function normalizePostType(t?: string): PostTypeValue {
  if (t === "normal" || !t) return "discussion";
  if (POST_TYPES.some((x) => x.value === t)) return t as PostTypeValue;
  return "discussion";
}

export function postTypeLabel(t?: string): string {
  const n = normalizePostType(t);
  return POST_TYPES.find((x) => x.value === n)?.label || "讨论";
}

export function contentAccessLabel(a?: string): string {
  const hit = CONTENT_ACCESS.find((x) => x.value === a);
  return hit?.label || "公开";
}

/** 列表 type_status → 徽章文案 */
export function typeStatusLabel(postType?: string, typeStatus?: string): string {
  const pt = normalizePostType(postType);
  const s = (typeStatus || "").toLowerCase();
  switch (pt) {
    case "question":
      return s === "solved" ? "已解决" : "未解决";
    case "poll":
      return s === "closed" ? "已结束" : "进行中";
    case "bounty":
      if (s === "solved") return "已采纳";
      if (s === "expired") return "已过期";
      return "进行中";
    case "lottery":
      if (s === "drawn") return "已开奖";
      if (s === "closed") return "已截止";
      return "进行中";
    default:
      return "";
  }
}