"use client";

import { useEffect, type ReactNode } from "react";
import { usePathname, useRouter } from "next/navigation";
import { useAuth } from "./auth-context";

const PUBLIC_PATHS = ["/login"];

export function AuthGuard({ children }: { children: ReactNode }) {
  const { isAuthenticated, isLoading } = useAuth();
  const pathname = usePathname();
  const router = useRouter();

  const isPublic = PUBLIC_PATHS.includes(pathname);

  useEffect(() => {
    if (isLoading) return;
    if (!isAuthenticated && !isPublic) {
      router.replace("/login");
    }
  }, [isAuthenticated, isLoading, isPublic, router]);

  if (isLoading) {
    return (
      <div className="h-screen flex items-center justify-center bg-[var(--bg-primary)]">
        <div className="text-[var(--text-secondary)] text-sm">加载中...</div>
      </div>
    );
  }

  if (!isAuthenticated && !isPublic) {
    return null;
  }

  return <>{children}</>;
}