"use client";

import Link from "next/link";
import Image from "next/image";
import { useEffect, useState } from "react";
import { AnimatePresence, motion } from "framer-motion";

const links = [
  { href: "/studio", label: "Studio" },
  { href: "/games", label: "Games" },
  { href: "/devblog", label: "Devblog" },
  { href: "/contact", label: "Contact" },
];

export function Navbar() {
  const [scrolled, setScrolled] = useState(false);
  const [open, setOpen] = useState(false);

  useEffect(() => {
    const onScroll = () => setScrolled(window.scrollY > 20);
    onScroll();
    window.addEventListener("scroll", onScroll, { passive: true });
    return () => window.removeEventListener("scroll", onScroll);
  }, []);

  useEffect(() => {
    if (open) {
      const prev = document.body.style.overflow;
      document.body.style.overflow = "hidden";
      return () => {
        document.body.style.overflow = prev;
      };
    }
  }, [open]);

  return (
    <motion.header
      initial={{ y: -20, opacity: 0 }}
      animate={{ y: 0, opacity: 1 }}
      transition={{ duration: 0.6, ease: "easeOut" }}
      className={`fixed top-0 left-0 right-0 z-50 transition-all duration-300 ${
        scrolled || open
          ? "bg-background/80 backdrop-blur-md border-b border-border"
          : "bg-transparent"
      }`}
    >
      <nav className="max-w-7xl mx-auto flex items-center justify-between px-6 lg:px-10 h-16 lg:h-20">
        <Link href="/" className="flex items-center gap-3 group">
          <Image
            src="/image/Studio/Logo Flat.png"
            alt="Highland Games Studio"
            width={36}
            height={36}
            className="transition-transform group-hover:-translate-y-0.5"
            priority
          />
          <span className="font-display text-xl tracking-wider hidden sm:block">
            Highland Games
          </span>
        </Link>

        {/* Desktop nav */}
        <ul className="hidden md:flex items-center gap-1 sm:gap-2">
          {links.map((link) => (
            <li key={link.href}>
              <Link
                href={link.href}
                className="px-3 py-2 text-sm tracking-wide text-foreground-muted hover:text-foreground transition-colors"
              >
                {link.label}
              </Link>
            </li>
          ))}
        </ul>

        {/* Mobile toggle */}
        <button
          type="button"
          aria-label={open ? "Close menu" : "Open menu"}
          aria-expanded={open}
          aria-controls="mobile-menu"
          onClick={() => setOpen((v) => !v)}
          className="md:hidden relative w-10 h-10 flex items-center justify-center text-foreground hover:text-accent transition-colors"
        >
          <span className="sr-only">Menu</span>
          <span className="relative w-6 h-4 flex flex-col justify-between">
            <motion.span
              animate={open ? { rotate: 45, y: 7 } : { rotate: 0, y: 0 }}
              transition={{ duration: 0.25 }}
              className="block h-px bg-current origin-center"
            />
            <motion.span
              animate={open ? { opacity: 0 } : { opacity: 1 }}
              transition={{ duration: 0.15 }}
              className="block h-px bg-current"
            />
            <motion.span
              animate={open ? { rotate: -45, y: -7 } : { rotate: 0, y: 0 }}
              transition={{ duration: 0.25 }}
              className="block h-px bg-current origin-center"
            />
          </span>
        </button>
      </nav>

      {/* Mobile drawer */}
      <AnimatePresence>
        {open && (
          <motion.div
            id="mobile-menu"
            initial={{ opacity: 0, y: -8 }}
            animate={{ opacity: 1, y: 0 }}
            exit={{ opacity: 0, y: -8 }}
            transition={{ duration: 0.25, ease: [0.22, 1, 0.36, 1] }}
            className="md:hidden border-t border-border bg-background/95 backdrop-blur-md"
          >
            <ul className="px-6 py-6 flex flex-col gap-1">
              {links.map((link, i) => (
                <motion.li
                  key={link.href}
                  initial={{ opacity: 0, x: -8 }}
                  animate={{ opacity: 1, x: 0 }}
                  transition={{ delay: 0.05 + i * 0.04, duration: 0.3 }}
                >
                  <Link
                    href={link.href}
                    onClick={() => setOpen(false)}
                    className="block py-3 font-display text-2xl tracking-wider text-foreground hover:text-accent transition-colors"
                  >
                    {link.label.toUpperCase()}
                  </Link>
                </motion.li>
              ))}
            </ul>
          </motion.div>
        )}
      </AnimatePresence>
    </motion.header>
  );
}
