'use client';

import * as React from 'react';
import { Moon, Sun } from 'lucide-react';
import { Button } from '@/components/ui/Button';

export function ThemeToggle() {
  const [theme, setTheme] = React.useState<'light' | 'dark'>('light');

  React.useEffect(() => {
    // Get initial theme
    const isDark = document.documentElement.classList.contains('dark');
    setTheme(isDark ? 'dark' : 'light');
  }, []);

  const toggleTheme = () => {
    const newTheme = theme === 'light' ? 'dark' : 'light';
    setTheme(newTheme);

    if (newTheme === 'dark') {
      document.documentElement.classList.add('dark');
      localStorage.setItem('theme', 'dark');
    } else {
      document.documentElement.classList.remove('dark');
      localStorage.setItem('theme', 'light');
    }
  };

  return (
    <Button
      variant="ghost"
      size="icon"
      onClick={toggleTheme}
      title={`Switch to ${theme === 'light' ? 'dark' : 'light'} mode`}
    >
      {theme === 'light' ? (
        <Moon className="h-5 w-5" />
      ) : (
        <Sun className="h-5 w-5" />
      )}
    </Button>
  );
}