// 查询 key 统一在这里生成,SSE 失效与跨页刷新靠它对齐。
// 约定:[area, "list", params?] / [area, "detail", id] / [area, 其它子资源...];
// invalidate 某区域全部数据用 qk.all(area)。

export type QueryArea =
  | "auth"
  | "health"
  | "dashboard"
  | "settings"
  | "api-keys"
  | "secrets"
  | "library-roots"
  | "downloader-instances"
  | "media-server-instances"
  | "path-mappings"
  | "sites"
  | "site-accounts"
  | "audit"
  | "engine"
  | "media"
  | "identity"
  | "organize"
  | "subscriptions"
  | "preferences"
  | "inbox"
  | "decisions"
  | "sources"
  | "feeds"
  | "tasks"
  | "downloads"
  | "agent"
  | (string & {});

export const qk = {
  all: (area: QueryArea) => [area] as const,
  list: (area: QueryArea, params?: object) => (params ? ([area, "list", params] as const) : ([area, "list"] as const)),
  detail: (area: QueryArea, id: string) => [area, "detail", id] as const,
  sub: (area: QueryArea, ...parts: (string | number | object)[]) => [area, ...parts] as const,

  session: ["auth", "session"] as const,
  health: ["health"] as const,
  dashboard: ["dashboard"] as const,
  settings: ["settings"] as const,
  engineStats: ["engine", "stats"] as const,
};