aragrp/components/theme-toggle.tsx

"use client";

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

export function ThemeToggle({ className }: { className?: string }) {
  const { theme, setTheme } = useTheme();
  const [mounted, setMounted] = useState(false);

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

  if (!mounted) {
    return (
      <Button
        variant="ghost"
        size="icon"
        className={cn("relative", className)}
        aria-label="تغییر تم"
      >
        <Sun />
      </Button>
    );
  }

  return (
    <Button
      variant="ghost"
      size="icon"
      className={cn(
        "relative text-muted-foreground hover:text-foreground",
        className
      )}
      onClick={() => setTheme(theme === "dark" ? "light" : "dark")}
      aria-label="تغییر تم"
    >
      <Sun className="rotate-0 scale-100 transition-all duration-300 dark:-rotate-90 dark:scale-0" />
      <Moon className="absolute rotate-90 scale-0 transition-all duration-300 dark:rotate-0 dark:scale-100" />
    </Button>
  );
}