@magic/core/src/lib/addJsFiles.mjs

@magic core. generate static pages and serverless lambdas. ~5kb client boilerplate.

import is from '@magic/types'
import error from '@magic/error'

import { createHash } from './createHash.mjs'
import { replaceSlashSlash } from './replaceSlashSlash.mjs'

export const addJsFiles = ({ js = [], WEB_ROOT }) => {
  if (is.empty(js)) {
    return
  }

  if (!is.array(js)) {
    js = [js]
  }

  const hashes = Object.fromEntries(
    js.map(({ src }) => {
      const staticSrc = src.replace(WEB_ROOT, '')
      const fileContent = app.static[replaceSlashSlash(`/${staticSrc}`)]

      if (!fileContent) {
        throw error(`script ${staticSrc} could not be loaded`, 'E_EXTERNAL_SCRIPT')
      }

      const fileHash = createHash(fileContent)
      return [staticSrc, fileHash]
    }),
  )

  return hashes
}