---
// Example code from the `html` prop or the rendered slot; copy button uses data-clipboard-text.
import Icon from '@ui/Icon.astro';
import { beautifyHtml, highlightCode, removeHref } from '@shared/lib/code-example';

interface Props {
	/** raw HTML of the example; when absent — the slot is rendered */
	html?: string;
	/** code shown in the panel instead of html */
	code?: string;
	raw?: boolean;
	overflow?: string;
	bg?: string;
	class?: string;
	height?: string;
	column?: boolean;
	centered?: boolean;
	vertical?: boolean;
	columnFullWidth?: boolean;
	hideCode?: boolean;
	codeOnly?: boolean;
}

const {
	html: htmlProp,
	code,
	raw,
	overflow = 'auto',
	bg,
	class: className,
	height,
	column,
	centered,
	vertical,
	columnFullWidth,
	hideCode,
	codeOnly,
} = Astro.props;

// Strip empty lines from the example HTML.
let html = (htmlProp ?? (await Astro.slots.render('default'))).replace(/^\s*[\r\n]/gm, '');

// JSX reserializes the slot markup: empty SVG elements get explicit closing
// tags, and apostrophes in text are escaped. We restore the source form so the
// code in the panel looks like hand-written HTML.
html = html
	.replace(/<(path|circle|line|polyline|polygon|rect|ellipse)([^>]*?)\s*><\/\1>/g, '<$1$2 />')
	.replace(/&#39;/g, "'");

const exampleClasses = [
	'example fs-base border rounded my-5',
	!raw && 'd-flex flex-wrap justify-content-center',
	`overflow-${overflow}`,
	'position-relative',
	bg ? `bg-${bg}` : 'bg-pattern-rectangles',
	className,
]

const innerClasses = [
	'p-6 w-full',
	column && 'd-flex gap-3 flex-column',
	!column && centered && `d-flex flex-fill flex-wrap gap-2 justify-content-center${vertical ? ' align-items-center flex-column' : ' justify-content-center'}`,
	columnFullWidth && 'd-flex flex-fill flex-column gap-2',
]

const highlighted = hideCode ? '' : await highlightCode(beautifyHtml(code ?? html), 'html');
---

<!--EXAMPLE-->
{
	!codeOnly && (
		<div class:list={exampleClasses} style={height ? `height: ${height}` : undefined}>
			{
				raw ? (
					<Fragment set:html={removeHref(html)} />
				) : (
					<div class:list={innerClasses} style={column ? 'max-width: 25rem;' : undefined}>
						<Fragment set:html={removeHref(html)} />
					</div>
				)
			}
		</div>
	)
}

{
	!hideCode && (
		<div class="position-relative">
			<a class="btn btn-icon btn-dark position-absolute m-2 top-0 end-0 z-3" data-clipboard-text={html}>
				<Icon name="clipboard" />
				<Icon name="check" class="d-none" />
			</a>
			<Fragment set:html={highlighted} />
		</div>
	)
}
<!--/EXAMPLE-->