theme-toggle.tsx

'use client';

import * as React from 'react';
import { MoonIcon, SunIcon } from '@radix-ui/react-icons';
import { useTheme } from 'next-themes';
import { Button } from '~/components/ui/button';
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from '~/components/ui/dropdown-menu';

export function ModeToggle() {
  const { setTheme } = useTheme();

  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant='outline' size='icon'>
          <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')}>
          Light
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme('dark')}>
          Dark
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme('system')}>
          System
        </DropdownMenuItem>
      </DropdownMenuContent>
    </DropdownMenu>
  );
}