import type { LocalMediaHit, MediaKind, SearchInventoryState, SearchSiteStatus } from "@umt/contracts";
import { Compass, type LucideIcon, Zap } from "lucide-react";
import type { StatusTone } from "~/components/console/status-badge.tsx";
import { MEDIA_KIND } from "~/components/library/labels.ts";

// 搜索结果的展示口径

export const mediaKindLabel = (k: MediaKind) => MEDIA_KIND[k] ?? k;

/** 本地作品的一行摘要:订阅 / 版本 / 下载中 / 缺口 */
export function slotSummary(h: LocalMediaHit): string {
  const c = h.slotCounts;
  const parts: string[] = [];
  if (h.subscribed) parts.push("已订阅");
  if (h.versionCount) parts.push(`${h.versionCount} 个版本`);
  if (h.downloadingCount) parts.push(`${h.downloadingCount} 个下载中`);
  const gaps = c.empty + c.attention + c.upgrade_pending;
  if (gaps) parts.push(`${gaps} 个收录版本未满足`);
  return parts.join(" · ") || "未订阅";
}

export const actionIcon = (kind: "page" | "action"): LucideIcon => (kind === "page" ? Compass : Zap);

export const INVENTORY_STATE: Record<SearchInventoryState, { label: string; tone: StatusTone }> = {
  downloading: { label: "下载中", tone: "warning" },
  gap: { label: "有缺口", tone: "warning" },
  owned: { label: "已有版本", tone: "success" },
  subscribed: { label: "已订阅", tone: "neutral" },
  none: { label: "本地无版本", tone: "neutral" },
};

export const SITE_STATUS: Record<SearchSiteStatus, string> = {
  ok: "正常",
  failed: "失败",
  timeout: "超时",
  skipped: "跳过",
};

export const SORT_OPTIONS = [
  { value: "default", label: "默认" },
  { value: "seeders", label: "做种数" },
  { value: "size", label: "大小" },
  { value: "uploadedAt", label: "发布时间" },
  { value: "site", label: "站点" },
] as const;

const PROMO: Record<string, string> = {
  free: "免费",
  "2xfree": "2x 免费",
  "50%": "50%",
  "2x50%": "2x 50%",
  "30%": "30%",
  "2x": "2x 上传",
};
/** 促销文案;none/unknown 返回 null */
export function promoLabel(type: string): string | null {
  if (!type || type === "none" || type === "unknown") return null;
  return PROMO[type] ?? type;
}

const GB = 1024 ** 3;
export const gbToBytes = (s: string): number | undefined => {
  const n = Number(s);
  return s.trim() && Number.isFinite(n) && n >= 0 ? Math.round(n * GB) : undefined;
};