'use client';

import { useSession } from 'next-auth/react';
import { useRouter, usePathname } from 'next/navigation';
import { useEffect } from 'react';
import Image from 'next/image';
import { Footer } from '@/components/layout/Footer';
import { CommonHeader } from '@/components/layout/CommonHeader';
import { PresenceProvider } from '@/components/providers/presence-provider';

// Pages that don't require authentication
const publicPaths = [
  '/user/dashboard',
  '/user/profiles',
  '/user/profile/', // Agent profile view (includes /user/profile/[id])
];

// Check if current path is public
const isPublicPath = (pathname: string) => {
  return publicPaths.some(path => pathname === path || pathname.startsWith(path));
};

export default function UserLayout({
  children,
}: {
  children: React.ReactNode;
}) {
  const { data: session, status } = useSession();
  const router = useRouter();
  const pathname = usePathname();
  const isDashboard = pathname === '/user/dashboard';
  const isPublic = isPublicPath(pathname);

  useEffect(() => {
    if (status === 'loading') return;

    // Allow public pages without authentication.
    // Agents are intentionally allowed to land on /user/dashboard — the logo
    // points there for all roles, so this layout must not bounce them away.
    if (isPublic) {
      return;
    }

    // Don't redirect to /login here for protected pages — the middleware handles that.
    // Doing it here causes race conditions during logout (layout detects session loss
    // and redirects to /login via client-side navigation, conflicting with server-side
    // logout redirect).
    if (!session) return;

    // Redirect agents to agent dashboard for protected user pages
    const userRole = (session.user as any)?.role;
    if (userRole === 'AGENT') {
      router.replace('/agent/dashboard');
    }
  }, [session, status, router, pathname, isPublic]);

  const splashLoading = (
    <div
      className="min-h-screen flex flex-col items-center justify-center"
      style={{ background: 'linear-gradient(to bottom, #c4d9d4, #f0f5fc)' }}
    >
      <Image src="/assets/images/splash-house.png" alt="" width={150} height={108} priority />
      <div className="mt-[35px]">
        <Image src="/assets/images/splash-logo.png" alt="RE-Quest" width={264} height={55} priority />
      </div>
      <div className="mt-8">
        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-[#00293d]" />
      </div>
    </div>
  );

  // Show loading only for protected pages while checking auth
  if (status === 'loading' && !isPublic) {
    return splashLoading;
  }

  // Redirect protected pages if not logged in
  if (!session && !isPublic) {
    return splashLoading;
  }

  return (
    <PresenceProvider>
      <div className="min-h-screen flex flex-col">
        {isDashboard ? (
          <>
            {/* Main Content with Header Overlay for Dashboard */}
            <main className="flex-1 relative">
              {/* Header overlaying the content */}
              <div className="absolute top-0 left-0 right-0 z-50 px-4 py-3">
                <div className="max-w-7xl mx-auto">
                  <CommonHeader />
                </div>
              </div>
              {children}
            </main>
          </>
        ) : (
          <>
            {/* Regular Header for other pages */}
            <div className="px-4 sm:px-6 lg:px-8 pt-3 pb-1 bg-white">
              <div className="max-w-7xl mx-auto">
                <CommonHeader />
              </div>
            </div>

            {/* Main Content */}
            <main className="flex-1">
              {children}
            </main>
          </>
        )}

        {/* Footer */}
        <Footer />
      </div>
    </PresenceProvider>
  );
}
