"use client";

import { useState } from "react";
import Link from "next/link";
import { useSession, signOut } from "next-auth/react";

export function Navbar() {
  const { data: session } = useSession();
  const [menuOpen, setMenuOpen] = useState(false);

  return (
    <nav className="sticky top-0 z-40 border-b border-neutral-200 bg-white/90 backdrop-blur-md">
      <div className="mx-auto flex h-14 max-w-6xl items-center justify-between px-4">
        {/* Logo */}
        <Link href="/" className="flex items-center gap-1.5">
          <span className="flex h-7 w-7 items-center justify-center rounded-lg bg-primary-600 text-xs font-bold text-white">
            S
          </span>
          <span className="text-lg font-bold text-neutral-800">
            Se<span className="text-primary-600">Trip</span>
          </span>
        </Link>

        {/* Desktop Nav */}
        <div className="hidden items-center gap-1 md:flex">
          <Link
            href="/trips"
            className="rounded-lg px-3 py-1.5 text-sm font-medium text-neutral-600 transition-colors hover:bg-neutral-100 hover:text-neutral-800"
          >
            Open Trip
          </Link>

          {session?.user ? (
            <>
              <Link
                href="/create-trip"
                className="rounded-lg px-3 py-1.5 text-sm font-medium text-neutral-600 transition-colors hover:bg-neutral-100 hover:text-neutral-800"
              >
                Buat Trip
              </Link>
              <div className="ml-2 flex items-center gap-2">
                <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary-600 text-xs font-bold text-white">
                  {session.user.name?.charAt(0).toUpperCase()}
                </div>
                <span className="text-sm font-medium text-neutral-700">
                  {session.user.name}
                </span>
                <button
                  onClick={() => signOut()}
                  className="rounded-lg px-2.5 py-1.5 text-sm font-medium text-neutral-500 transition-colors hover:bg-neutral-100 hover:text-neutral-700"
                >
                  Logout
                </button>
              </div>
            </>
          ) : (
            <>
              <Link
                href="/login"
                className="rounded-lg px-3 py-1.5 text-sm font-medium text-neutral-600 transition-colors hover:bg-neutral-100 hover:text-neutral-800"
              >
                Login
              </Link>
              <Link
                href="/register"
                className="ml-1 rounded-lg bg-primary-600 px-4 py-1.5 text-sm font-semibold text-white transition-colors hover:bg-primary-700"
              >
                Daftar
              </Link>
            </>
          )}
        </div>

        {/* Mobile Hamburger */}
        <button
          onClick={() => setMenuOpen(!menuOpen)}
          className="flex h-9 w-9 items-center justify-center rounded-lg text-neutral-600 transition-colors hover:bg-neutral-100 md:hidden"
          aria-label="Toggle menu"
        >
          {menuOpen ? (
            <svg width="20" height="20" viewBox="0 0 20 20" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round">
              <path d="M5 5l10 10M15 5L5 15" />
            </svg>
          ) : (
            <svg width="20" height="20" viewBox="0 0 20 20" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round">
              <path d="M3 5h14M3 10h14M3 15h14" />
            </svg>
          )}
        </button>
      </div>

      {/* Mobile Menu */}
      {menuOpen && (
        <div className="border-t border-neutral-100 bg-white px-4 pb-4 pt-2 md:hidden">
          <div className="flex flex-col gap-1">
            <Link
              href="/trips"
              onClick={() => setMenuOpen(false)}
              className="rounded-lg px-3 py-2.5 text-sm font-medium text-neutral-700 transition-colors hover:bg-neutral-50"
            >
              Open Trip
            </Link>

            {session?.user ? (
              <>
                <Link
                  href="/create-trip"
                  onClick={() => setMenuOpen(false)}
                  className="rounded-lg px-3 py-2.5 text-sm font-medium text-neutral-700 transition-colors hover:bg-neutral-50"
                >
                  Buat Trip
                </Link>
                <div className="mt-2 flex items-center justify-between rounded-lg bg-neutral-50 px-3 py-2.5">
                  <div className="flex items-center gap-2">
                    <div className="flex h-8 w-8 items-center justify-center rounded-full bg-primary-600 text-xs font-bold text-white">
                      {session.user.name?.charAt(0).toUpperCase()}
                    </div>
                    <span className="text-sm font-medium text-neutral-700">
                      {session.user.name}
                    </span>
                  </div>
                  <button
                    onClick={() => signOut()}
                    className="rounded-lg px-3 py-1.5 text-sm font-medium text-red-500 transition-colors hover:bg-red-50"
                  >
                    Logout
                  </button>
                </div>
              </>
            ) : (
              <div className="mt-2 flex gap-2">
                <Link
                  href="/login"
                  onClick={() => setMenuOpen(false)}
                  className="flex-1 rounded-lg border border-neutral-200 py-2.5 text-center text-sm font-semibold text-neutral-700 transition-colors hover:bg-neutral-50"
                >
                  Login
                </Link>
                <Link
                  href="/register"
                  onClick={() => setMenuOpen(false)}
                  className="flex-1 rounded-lg bg-primary-600 py-2.5 text-center text-sm font-semibold text-white transition-colors hover:bg-primary-700"
                >
                  Daftar
                </Link>
              </div>
            )}
          </div>
        </div>
      )}
    </nav>
  );
}