// Copyright: (c) 2026 TWWIM UG. All rights reserved. (www.twwim.com)

import { useMemo } from 'react';
import type { AuthOrigin, Channel } from '@archer/domain';
import { useAuthenticatedUser } from '@/features/auth/hooks/useAuthenticatedUser';
import { resolveChannel } from '@/lib/channel';

/**
 * Reactive channel resolver. Reruns when authOrigin patches into the store
 * (login, refresh). Pure derivation — no setter, no side effects.
 *
 * Use this for UI shape decisions (which sidebar items, which cards, link
 * targets, etc). Do NOT use it for "can I call the WP REST bridge" checks —
 * that's `isWordpressEmbed()` and answers a different question (runtime
 * presence of the wp-json nonce + window.archerAi).
 */
export function useChannel(): Channel {
  const user = useAuthenticatedUser();
  const isWpEmbedBuild = import.meta.env.VITE_WP_EMBED === 'true';

  return useMemo(
    () => resolveChannel({
      isWpEmbedBuild,
      authOrigin: user?.authOrigin as AuthOrigin | undefined,
    }),
    [isWpEmbedBuild, user?.authOrigin],
  );
}