now-updater/utils.js

import 'dotenv/config'
import { JSDOM } from 'jsdom'
import sanitizeHtml from 'sanitize-html'

export function markdownLinkRegex(url) {
	return new RegExp(
		`(\\[).*?(\\]\\(https:\\/\\/${url.replaceAll('.', '\\.')}\\))`,
		'i',
	)
}

export function markdownCharEscape(text) {
	return text
		.replaceAll('`', '\\`')
		.replaceAll('*', '\\*')
		.replaceAll('_', '\\_')
		.replaceAll('{', '\\{')
		.replaceAll('}', '\\}')
		.replaceAll('[', '\\[')
		.replaceAll(']', '\\]')
		.replaceAll('(', '\\(')
		.replaceAll(')', '\\)')
		.replaceAll('#', '\\#')
		.replaceAll('+', '\\+')
		.replaceAll('-', '\\-')
		.replaceAll('.', '\\.')
		.replaceAll('!', '\\!')
}

export async function getRSSItemTitle(feedUrl) {
	const res = await fetch(feedUrl)
	const data = await res.text()
	const dom = new JSDOM(data)
	const item = dom.window.document.querySelector('item')
	const title = item.querySelector('title').textContent
	return markdownCharEscape(
		sanitizeHtml(title, {
			allowedTags: [],
			allowedAttributes: {},
		})?.trim(),
	)
}

export async function getJsonFeedItemTitle(feedUrl) {
	const res = await fetch(feedUrl)
	const data = await res.json()
	const post = data.items[0]
	const { title, image } = post
	const cleanTitle = markdownCharEscape(title)
	return image ? `${cleanTitle} ![${cleanTitle}](${image})` : cleanTitle
}

export async function getJsonFeedItemContent(feedUrl) {
	const res = await fetch(feedUrl)
	const data = await res.json()
	const post = data.items[0]
	const { content_html, image } = post
	const title = sanitizeHtml(content_html, {
		allowedTags: [],
		allowedAttributes: {},
	})?.trim()
	const cleanTitle = markdownCharEscape(title)
	return image ? `${cleanTitle} ![${cleanTitle}](${image})` : cleanTitle
}

export async function getMalojaScrobble(malojaUrl) {
	const res = await fetch(`${malojaUrl}/apis/mlj_1/scrobbles?perpage=1`)
	const data = await res.json()
	const scrobble = data.list[0]
	const {
		title,
		album: { artists },
	} = scrobble.track
	const cleanTitle = markdownCharEscape(title)
	const cleanArtists = markdownCharEscape(artists.join(', '))
	return markdownCharEscape(`${cleanTitle}<br />by ${cleanArtists}`)
}

export async function getLetterboxdActivity(username) {
	const res = await fetch(`https://letterboxd.com/${username}/rss/`)
	const data = await res.text()
	const dom = new JSDOM(data)
	const item = dom.window.document.querySelector('item')
	const title = item.querySelector('title').textContent
	const cleanTitle = markdownCharEscape(title)
	const image = item.querySelector('description > img').src
	return `${cleanTitle} ![${cleanTitle}](${image})`
}

export async function getTraktEpisode(username, id) {
	const res = await fetch(
		`https://trakt.tv/users/${username}/history/episodes/added/asc.atom?slurm=${process.env.TRAKT_SLURM}`,
	)
	const data = await res.text()
	const dom = new JSDOM(data)
	const entry = dom.window.document.querySelector('entry')
	const title = entry.querySelector('title').textContent
	const cleanTitle = markdownCharEscape(title)
	return `${cleanTitle} ![${cleanTitle}](https://widgets.trakt.tv/users/${id}/watched/thumb@2x.jpg?type=episode&image_only=1)`
}