@viewstools/morph/get-view-relative-to-view.js

import path from 'path'

export default function getViewRelativeToView({
  id,
  view,
  viewsById,
  viewsToFiles,
}) {
  let importCandidates = viewsById.get(id)
  if (!importCandidates) {
    // TODO add better error message
    console.log('No import candidates for ', id, 'from', view.file)
    importCandidates = new Set()
  }
  let importViewFile = [...importCandidates][0]
  if (importCandidates.size > 1) {
    let pathToView = path.dirname(view.file)

    let maybeFileViewInside = path
      .join(pathToView, id, 'view.blocks')
      .replace(/\\/g, '/')
    let maybeFileViewCustomInside = path
      .join(pathToView, id, 'react.js')
      .replace(/\\/g, '/')
    if (importCandidates.has(maybeFileViewInside)) {
      importViewFile = maybeFileViewInside
    } else if (importCandidates.has(maybeFileViewCustomInside)) {
      importViewFile = maybeFileViewCustomInside
    }
  }

  return viewsToFiles.get(importViewFile)
}