/**
 * Prefixes for routes that must NOT get a dedicated-root rewrite (user jumped to
 * another vertical, API, or global page). Kept in sync with app routes and onion layout.
 */
import { DEDICATED_ROOT } from "@/lib/onionRoutes.generated";

const EXTRA_PREFIXES = [
  "/api",
  "/hidden-wiki",
  "/launch",
  /** Stall pages: DEDICATED has `/vendors` but not vendor slug paths */
  "/vendor",
] as const;

const ONION_CROSS_NAV_PREFIXES: readonly string[] = (() => {
  const set = new Set<string>([...Object.values(DEDICATED_ROOT), ...EXTRA_PREFIXES] as string[]);
  return Object.freeze(Array.from(set));
})();

/**
 * @returns true if this request path should be passed through to Next as-is
 * (no `/${dedicatedRoot}${path}` rewrite) for a non-hub onion host.
 */
export function isOnionCrossNavPath(pathname: string): boolean {
  if (pathname === "/w" || pathname.startsWith("/w/")) {
    return true;
  }
  for (const prefix of ONION_CROSS_NAV_PREFIXES) {
    if (pathname === prefix || pathname.startsWith(`${prefix}/`)) {
      return true;
    }
  }
  return false;
}