import Link from "next/link"

import { siteConfig, navLinks } from "@/lib/site"
import { buttonVariants } from "@/components/ui/button"
import { Sheet, SheetContent, SheetTrigger } from "@/components/ui/sheet"
import { Menu } from "lucide-react"

function DesktopNav() {
  return (
    <nav className="hidden gap-6 md:flex" aria-label="Main navigation">
      {navLinks.map((item) => (
        <Link
          key={item.href}
          href={item.href}
          className="text-sm font-medium text-muted-foreground transition-colors hover:text-foreground"
        >
          {item.label}
        </Link>
      ))}
    </nav>
  )
}

function MobileNav() {
  return (
    <Sheet>
      <SheetTrigger
        className={buttonVariants({ variant: "outline", size: "icon" }) + " md:hidden"}
        aria-label="Open menu"
      >
        <Menu className="size-5" />
      </SheetTrigger>
      <SheetContent side="right">
        <nav className="mt-8 flex flex-col gap-4" aria-label="Mobile navigation">
          {navLinks.map((item) => (
            <Link
              key={item.href}
              href={item.href}
              className="text-base font-medium text-muted-foreground transition-colors hover:text-foreground"
            >
              {item.label}
            </Link>
          ))}
        </nav>
      </SheetContent>
    </Sheet>
  )
}

export function Header() {
  return (
    <header className="sticky top-0 z-50 border-b bg-background/95 backdrop-blur-sm supports-backdrop-filter:bg-background/60">
      <div className="mx-auto flex h-14 max-w-5xl items-center justify-between px-4">
        <Link href="/" className="text-lg font-semibold tracking-tight">
          {siteConfig.name}
        </Link>
        <DesktopNav />
        <MobileNav />
      </div>
    </header>
  )
}