'use client';

import * as React from 'react';

// --- UI Primitives ---
import { Button } from '@/components/tiptap-ui-primitive/button';

// --- Icons ---
import { MoonStarIcon } from '@/components/tiptap-icons/moon-star-icon';
import { SunIcon } from '@/components/tiptap-icons/sun-icon';

export function ThemeToggle() {
	const [isDarkMode, setIsDarkMode] = React.useState<boolean>(false);

	React.useEffect(() => {
		const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
		const handleChange = () => setIsDarkMode(mediaQuery.matches);
		mediaQuery.addEventListener('change', handleChange);
		return () => mediaQuery.removeEventListener('change', handleChange);
	}, []);

	React.useEffect(() => {
		const initialDarkMode =
			!!document.querySelector('meta[name="color-scheme"][content="dark"]') ||
			window.matchMedia('(prefers-color-scheme: dark)').matches;
		setIsDarkMode(initialDarkMode);
	}, []);

	React.useEffect(() => {
		document.documentElement.classList.toggle('dark', isDarkMode);
	}, [isDarkMode]);

	const toggleDarkMode = () => setIsDarkMode((isDark) => !isDark);

	return (
		<Button onClick={toggleDarkMode} aria-label={`Switch to ${isDarkMode ? 'light' : 'dark'} mode`} data-style="ghost">
			{isDarkMode ? <MoonStarIcon className="tiptap-button-icon" /> : <SunIcon className="tiptap-button-icon" />}
		</Button>
	);
}