'use client';

import * as React from 'react';
import { Moon, Sun } from 'lucide-react';
import { useTheme } from 'next-themes';

import { Button } from '@/components/ui/button';

export function ThemeToggle() {
  const { theme, setTheme } = useTheme();
  const [mounted, setMounted] = React.useState(false);

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

  if (!mounted) {
    return (
      <Button variant="outline" size="icon" className="relative overflow-hidden transition-all duration-300 hover:scale-110">
        <Sun className="h-[1.2rem] w-[1.2rem]" />
        <span className="sr-only">切换主题</span>
      </Button>
    );
  }

  const isDark = theme === 'dark';

  const toggleTheme = () => {
    setTheme(isDark ? 'light' : 'dark');
  };

  return (
    <Button
      variant="outline"
      size="icon"
      onClick={toggleTheme}
      className="relative overflow-hidden transition-all duration-300 hover:scale-110"
    >
      <Sun className={`h-[1.2rem] w-[1.2rem] transition-all duration-300 ${isDark ? 'rotate-90 scale-0' : 'rotate-0 scale-100'}`} />
      <Moon className={`absolute h-[1.2rem] w-[1.2rem] transition-all duration-300 ${isDark ? 'rotate-0 scale-100' : '-rotate-90 scale-0'}`} />
      <span className="sr-only">切换主题</span>
    </Button>
  );
}