"use client";

/**
 * useSignedInPage — for a page that only makes sense signed in.
 *
 * Signed-out visitors get the sign-in modal over the page; dismissing it
 * takes them home. This is the same gate /notifications, /chats and /u/me
 * each wire up by hand. Returns the user (null until signed in) so the page
 * can hold its content back until then.
 */

import { useEffect } from "react";
import { useRouter } from "next/navigation";
import { useAuth } from "@/components/auth/auth-provider";
import { useAuthGate } from "@/components/auth/auth-gate";

export function useSignedInPage() {
  const { user, loading } = useAuth();
  const { requireAuth } = useAuthGate();
  const router = useRouter();

  useEffect(() => {
    if (loading || user) return;
    let cancelled = false;
    (async () => {
      const ok = await requireAuth();
      if (!ok && !cancelled) router.replace("/");
    })();
    return () => {
      cancelled = true;
    };
  }, [loading, user, requireAuth, router]);

  return { user, loading };
}