---
import { parse } from 'node-html-parser';
import type { HTMLAttributes } from 'astro/types';

export type Icons = 'chevron-down' | 'download' | 'book-open';

interface Props extends HTMLAttributes<'svg'> {
  	icon: Icons
	size?: number | [number, number]
}

async function getSVG(name: string) {
	const file = await import(`./impl/${name}.svg?raw` /* @vite-ignore */);

	if (!file)
		throw new Error(`${name} not found`);

	const content = parse(file.default);

	const svg = content.querySelector('svg');

	if (!svg)
		throw new Error(`${name} is not a valid SVG`);

	const { attributes, innerHTML } = svg;

	return {
		attributes,
		innerHTML,
	};
}

const {
	icon,
	size,
	...attributes
} = Astro.props as Props;

let svgAttributes = {};
let html = '';

try {
	const sizeAttributes = () => {
		if (!size)
			return {};

		if (Array.isArray(size)) {
			return {
				width: size[0],
				height: size[1],
			};
		}

		return {
			width: size,
			height: size,
		};
	};

	const { attributes: baseAttributes, innerHTML } = await getSVG(icon);
	svgAttributes = {
		...baseAttributes,
		...attributes,
		...sizeAttributes(),
	};

	const colorRegex = /(fill|stroke)=\"([^"]*)\"/g;
	html = innerHTML.replaceAll(colorRegex, '$1="currentColor"');
}
catch (err) {
	// ignored
}
---

	<svg {...svgAttributes} set:html={html}></svg>