mailer/src/template.tsx

import React from 'preact/compat' //for jsx-email
import { render } from 'jsx-email'
// @deno-types="npm:turndown"
import Turndown from 'turndown'
import { JSX } from 'preact'

const htmlToMd = new Turndown({
	headingStyle: 'atx',
	codeBlockStyle: 'fenced',
})

export async function renderTemplate(
	template: JSX.Element,
): Promise<{ html: string; text: string }> {
	const html = await render(template)

	return {
		html,
		text: htmlToMd.turndown(html),
	}
}