const { contentAsText } = require('../helpers')

const languages = ['terrace', 'json', 'yaml', 'toml', 'javascript', 'typescript', 'c', 'python']

module.exports = async (doc, rootLevel) => {
  const { next, level, line, head, tail } = doc

  const node = {
    type: head(),
    languages: {}
  }

  while (await next(rootLevel)) {
    const languageLevel = level()
    if (languages.includes(head())) {
      node.languages[head()] = await contentAsText(doc, languageLevel)
    }
  }

  return node
}