react-tiny-link/src/rules/Youtube/ScrapYoutube.ts

> Convert your links into beautiful previews

import { ReactTinyLinkType } from '../../ReactTinyLinkTypes'
import { isEmpty, getYoutTubeVideoId } from '../utils'

const titleRegex = /"title":"(.+?)"/g

export default async (url, htmlDoc, defaultMedia) => {
  const id = getYoutTubeVideoId(url)
  const image = [
    `https://img.youtube.com/vi/${id}/0.jpg`,
    `https://img.youtube.com/vi/${id}/1.jpg`,
    `https://img.youtube.com/vi/${id}/2.jpg`,
    `https://img.youtube.com/vi/${id}/3.jpg`,
  ]
  try {
    const { title } = JSON.parse(
      `{${
      htmlDoc
        .querySelector('html')
        .innerHTML.toString()
        .match(titleRegex)[0]
      }}`,
    )
    return {
      title: title,
      url: url,
      description: url,
      type: ReactTinyLinkType.TYPE_YOUTUBE,
      video: [],
      image: image.filter(i => !isEmpty(i)),
    }
  } catch (error) {
    return {
      title: htmlDoc.querySelector('title').innerText,
      url: url,
      description: url,
      type: ReactTinyLinkType.TYPE_YOUTUBE,
      video: [],
      image: !defaultMedia ? image.filter(i => !isEmpty(i)) : [...image, defaultMedia].filter(i => !isEmpty(i)),
    }
  }
}