Navbar Floating

"use client";

import { useEffect, useId, useState } from "react";
import { ArrowRight, Menu, X } from "lucide-react";
import { cn } from "@/lib/utils";

export interface NavbarFloatingProps {
  brand?: string;
  brandHref?: string;
  links?: { label: string; href: string }[];
  cta?: { label: string; href: string };
  className?: string;
}

function GroveMark({ className }: { className?: string }) {
  return (
    <svg aria-hidden viewBox="0 0 32 32" className={cn("size-8 shrink-0", className)}>
      <circle cx="16" cy="16" r="16" fill="var(--da-primary)" />
      <path d="M16 25V13" stroke="var(--da-primary-fg)" strokeWidth="2" strokeLinecap="round" />
      <path d="M16 17c-4 0-6.5-2.6-6.5-6.5 4 0 6.5 2.6 6.5 6.5Z" fill="var(--da-primary-fg)" opacity=".85" />
      <path d="M16 14c3.6 0 6-2.3 6-6-3.6 0-6 2.3-6 6Z" fill="var(--da-primary-fg)" />
    </svg>
  );
}

/** Floating pill navbar: a rounded, softly blurred surface bar detached from the top edge, with centered links and an arrow CTA; expands into a rounded panel on mobile. */
export function NavbarFloating({
  brand = "Grove",
  brandHref = "/",
  links = [
    { label: "Measure", href: "#measure" },
    { label: "Reduce", href: "#reduce" },
    { label: "Report", href: "#report" },
    { label: "Pricing", href: "#pricing" },
  ],
  cta = { label: "Book a walk-through", href: "#demo" },
  className,
}: NavbarFloatingProps) {
  const [open, setOpen] = useState(false);
  const id = useId();
  useEffect(() => {
    if (!open) return;
    const onKey = (e: KeyboardEvent) => e.key === "Escape" && setOpen(false);
    window.addEventListener("keydown", onKey);
    return () => window.removeEventListener("keydown", onKey);
  }, [open]);
  return (
    <header className={cn("sticky top-4 z-40 px-4", className)}>
      <nav
        aria-label="Main"
        className={cn(
          "mx-auto flex max-w-4xl flex-wrap items-center gap-4 bg-da-surface/85 py-2 pr-2 pl-4 text-da-surface-fg shadow-da-md backdrop-blur-da da-transition",
          open ? "rounded-da-lg" : "rounded-da-pill",
        )}
      >
        <a href={brandHref} className="da-focus flex items-center gap-2 rounded-da-pill font-da-display text-xl">
          <GroveMark className="size-7" />
          {brand}
        </a>
        <ul className="mx-auto hidden items-center gap-1 md:flex">
          {links.map((l) => (
            <li key={l.href}>
              <a href={l.href} className="da-focus da-transition rounded-da-pill px-4 py-2 text-[15px] text-da-muted-fg hover:bg-da-surface-2 hover:text-da-fg">
                {l.label}
              </a>
            </li>
          ))}
        </ul>
        <a
          href={cta.href}
          className="da-focus da-transition group hidden h-11 items-center gap-2 rounded-da-pill bg-da-primary pr-2 pl-5 text-[15px] font-medium text-da-primary-fg md:inline-flex"
        >
          {cta.label}
          <span
            aria-hidden
            className="grid size-7 place-items-center rounded-full bg-da-primary-fg/15 transition-transform duration-(--da-duration) group-hover:translate-x-0.5"
          >
            <ArrowRight className="size-4" />
          </span>
        </a>
        <button
          type="button"
          aria-label={open ? "Close menu" : "Open menu"}
          aria-expanded={open}
          aria-controls={id}
          onClick={() => setOpen(!open)}
          className="da-focus ml-auto grid size-10 place-items-center rounded-full bg-da-surface-2 md:hidden"
        >
          {open ? <X aria-hidden className="size-5" /> : <Menu aria-hidden className="size-5" />}
        </button>
        <div id={id} hidden={!open} className="w-full pb-2 md:hidden">
          <ul className="grid gap-1 pt-2">
            {links.map((l) => (
              <li key={l.href}>
                <a href={l.href} className="da-focus block rounded-da-md px-3 py-3 text-lg hover:bg-da-surface-2">
                  {l.label}
                </a>
              </li>
            ))}
          </ul>
          <a href={cta.href} className="da-focus mt-2 block rounded-da-pill bg-da-primary py-3 text-center font-medium text-da-primary-fg">
            {cta.label}
          </a>
        </div>
      </nav>
    </header>
  );
}

export default NavbarFloating;