import {
  Activity,
  Bot,
  CalendarClock,
  ClipboardList,
  Download,
  FileStack,
  Fingerprint,
  FolderTree,
  Globe,
  House,
  Inbox,
  Library,
  ListChecks,
  ListTodo,
  type LucideIcon,
  Rss,
  ScrollText,
  Settings,
  Tags,
  Timer,
} from "lucide-react";

export type NavItem = {
  to: string;
  label: string;
  icon: LucideIcon;
  description: string;
  /** 侧栏角标的数据来源 */
  badge?: "decisions";
};
export type NavGroup = { title: string; items: NavItem[] };

/** 控制台路由前缀 */
export const CONSOLE_BASE = "/console";

/** 拼控制台路径:consolePath("library", id) → /console/library/<id> */
export function consolePath(...segments: (string | number)[]): string {
  const rest = segments.map((s) => encodeURIComponent(String(s))).join("/");
  return rest ? `${CONSOLE_BASE}/${rest}` : CONSOLE_BASE;
}

/**
 * 侧栏 7 组(docs/design/console-ia.md §3.2),按业务流程排:概览 → 资源 → 订阅 → 下载 → 整理 → Agent → 系统。
 * 移动端抽屉用同一份表。
 */
export const NAV_GROUPS: NavGroup[] = [
  {
    title: "概览",
    items: [
      {
        to: "/console",
        label: "首页",
        icon: House,
        description: "自动化概览、当前工作、待处理、缓存、来源健康、最近产出",
      },
      {
        to: "/console/inbox",
        label: "待处理",
        icon: Inbox,
        description: "按作品和问题类型合并的待处理事项",
        badge: "decisions",
      },
    ],
  },
  {
    title: "资源",
    items: [
      {
        to: "/console/sites",
        label: "站点工作台",
        icon: Globe,
        description: "站点、站点账号、快照与 Feed",
      },
      {
        to: "/console/sources",
        label: "来源健康",
        icon: Rss,
        description: "全部 Feed 与站点的抓取状态",
      },
    ],
  },
  {
    title: "订阅",
    items: [
      {
        to: "/console/subscriptions",
        label: "订阅",
        icon: CalendarClock,
        description: "单次收录与持续追踪",
      },
      {
        to: "/console/rules",
        label: "收录策略",
        icon: ListChecks,
        description: "新作品收录条件、默认版本目标与策略版本",
      },
      {
        to: "/console/preferences",
        label: "偏好标签",
        icon: Tags,
        description: "软偏好影响排序,硬规则直接排除",
      },
    ],
  },
  {
    title: "下载",
    items: [
      {
        to: "/console/downloads",
        label: "下载队列",
        icon: Download,
        description: "下载任务与缓存水位",
      },
      {
        to: "/console/downloads/plans",
        label: "下载计划",
        icon: ClipboardList,
        description: "选中候选后生成的计划与空间预留",
      },
      {
        to: "/console/tasks",
        label: "业务任务",
        icon: ListTodo,
        description: "提交下载、核验入库、清理缓存等后台任务",
      },
    ],
  },
  {
    title: "整理",
    items: [
      { to: "/console/library", label: "媒体库", icon: Library, description: "作品、季 / 集、版本目标与实际路径" },
      {
        to: "/console/organize",
        label: "整理记录",
        icon: FileStack,
        description: "每次整理的前后路径与逐文件结果",
      },
      {
        to: "/console/files",
        label: "文件管理",
        icon: FolderTree,
        description: "浏览登记目录,改名、移动、删除与整理",
      },
      {
        to: "/console/identity",
        label: "身份与元数据",
        icon: Fingerprint,
        description: "外部身份、待识别资源与别名",
      },
    ],
  },
  {
    title: "Agent",
    items: [
      {
        to: "/console/agent",
        label: "Agent 会话",
        icon: Bot,
        description: "交代目标,Agent 在授权内执行并汇报",
      },
    ],
  },
  {
    title: "系统",
    items: [
      {
        to: "/console/settings",
        label: "设置",
        icon: Settings,
        description: "下载器、媒体服务器、库根、站点账号、Agent 上游与自动化",
      },
      {
        to: "/console/schedules",
        label: "定时任务",
        icon: Timer,
        description: "周期任务与 Agent 巡检的开关、间隔和运行记录",
      },
      {
        to: "/console/engine",
        label: "引擎面板",
        icon: Activity,
        description: "排查用,业务进度看业务任务。仅管理员",
      },
      {
        to: "/console/audit",
        label: "审计日志",
        icon: ScrollText,
        description: "登录、设置、密钥与实例变更的操作留痕",
      },
    ],
  },
];

export const NAV_ITEMS = NAV_GROUPS.flatMap((g) => g.items);

/**
 * 设置页深链。IA-2 把设置改为 /console/settings/:section 之前,先落到现有 ?tab=;
 * 调用方只认新分区名,切换时只改这里。
 */
export type SettingsSection =
  | "automation"
  | "sites"
  | "downloaders"
  | "library"
  | "media-servers"
  | "metadata"
  | "agent"
  | "api-keys"
  | "account";
const SETTINGS_LEGACY_TAB: Partial<Record<SettingsSection, string>> = {
  automation: "automation",
  sites: "site-credentials",
  downloaders: "downloaders",
  library: "library-roots",
  "media-servers": "media-servers",
  agent: "pi",
  "api-keys": "api-keys",
};
export function settingsPath(section: SettingsSection, anchor?: string): string {
  // 缓存阈值现在在"缓存与入库"页签,IA-2 后归到 automation#cache
  const tab = section === "automation" && anchor === "cache" ? "storage" : SETTINGS_LEGACY_TAB[section];
  return tab ? `${CONSOLE_BASE}/settings?tab=${tab}` : `${CONSOLE_BASE}/settings`;
}

/** 按路径找当前导航项(最长前缀匹配) */
export function findNavItem(pathname: string): NavItem | undefined {
  return (
    NAV_ITEMS.find((i) => i.to === pathname.replace(/\/+$/, "")) ??
    NAV_ITEMS.filter((i) => i.to !== CONSOLE_BASE && pathname.startsWith(`${i.to}/`)).sort(
      (a, b) => b.to.length - a.to.length,
    )[0]
  );
}