"use client";

import { Button } from "@/components/ui/button";
import { Moon, Sun } from "lucide-react";
import { useTheme } from "next-themes";
import { useEffect, useState } from "react";

export default function ThemeToggle() {
  const { resolvedTheme, setTheme } = useTheme();
  const [mounted, setMounted] = useState(false);

  useEffect(() => setMounted(true), []);

  if (!mounted) {
    return (
      <Button
        variant="ghost"
        size="icon"
        aria-label="Toggle theme"
        disabled
      >
        <span className="h-5 w-5" />
      </Button>
    );
  }

  const isDark = resolvedTheme === "dark";
  const toggle = () => setTheme(isDark ? "light" : "dark");

  return (
    <Button
      variant="ghost"
      size="icon"
      aria-label="Toggle theme"
      onClick={toggle}
    >
      {isDark ? <Sun className="h-5 w-5" /> : <Moon className="h-5 w-5" />}
      <span className="sr-only">Toggle theme</span>
    </Button>
  );
}