import type { RemarkPlugin } from "@astrojs/markdown-remark";
import { toString } from "mdast-util-to-string";
import getReadingTime from "reading-time";

export function remarkReadingTime(): RemarkPlugin {
	return function (tree, { data }) {
		const textOnPage = toString(tree);
		const readingTime = getReadingTime(textOnPage);
		data.astro.frontmatter.minutesRead = readingTime.text;
	};
}