Theme Switcher Dropdown

"use client";

import type React from "react";
import { useEffect, useState } from "react";

import { MonitorIcon, MoonIcon, SunIcon } from "lucide-react";
import { useTheme } from "next-themes";

import { Button } from "@/components/ui/button";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";

interface ThemeSwitcherDropdownProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  className?: string;
}

export function ThemeSwitcherDropdown({
  className,
  ...props
}: ThemeSwitcherDropdownProps) {
  const { setTheme } = useTheme();
  const [mounted, setMounted] = useState(false);

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

  if (!mounted) {
    return (
      <Button variant="outline" size="icon" disabled className={className}>
        <div className="w-4 h-4 bg-input rounded animate-pulse" />
      </Button>
    );
  }

  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="outline" size="icon" className={className} {...props}>
          <SunIcon className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
          <MoonIcon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
          <span className="sr-only">Toggle theme</span>
        </Button>
      </DropdownMenuTrigger>
      <DropdownMenuContent align="end">
        <DropdownMenuItem onClick={() => setTheme("light")}>
          <SunIcon className="mr-2 h-4 w-4" />
          Light
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("dark")}>
          <MoonIcon className="mr-2 h-4 w-4" />
          Dark
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("system")}>
          <MonitorIcon className="mr-2 h-4 w-4" />
          System
        </DropdownMenuItem>
      </DropdownMenuContent>
    </DropdownMenu>
  );
}