@eluvio/elv-utils-js/lib/concerns/Finalize.js

Utilities for the Eluvio Content Fabric

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

const Client = require('./Client')
const Logger = require('./Logger')

const blueprint = {
  name: 'Finalize',
  concerns: [Logger, Client]
}

const New = context => {
  const logger = context.concerns.Logger

  const finalize = async ({commitMessage, libraryId, noWait, objectId, writeToken}) => {
    const client = await context.concerns.Client.get()
    logger.log('Finalizing object...')
    const finalizeResponse = await client.FinalizeContentObject({
      commitMessage,
      libraryId,
      objectId,
      writeToken
    })
    const latestHash = finalizeResponse.hash
    logger.log(`Finalized, new version hash: ${latestHash}`)
    if(noWait) {
      logger.log('Skipping wait for new hash to become available (finalized new object version may take up to several minutes to become available, depending on size and number of parts.)')
    } else {
      await waitForPublish({libraryId, objectId, latestHash})
    }
    return latestHash
  }

  const waitForPublish = async ({latestHash, libraryId, objectId}) => {
    logger.log('Waiting for publishing to finish and new object version to become available...')
    const client = await context.concerns.Client.get()
    let publishFinished = false
    let latestObjectData = {}
    while(!publishFinished) {
      try {
        latestObjectData = await client.ContentObject({libraryId, objectId})
      } catch (e) {
        if(e.message!=='Not Found') throw e
      }
      if(latestObjectData.hash === latestHash) {
        logger.log('New object version now available')
        publishFinished = true
      } else {
        logger.log('  new version not available yet, waiting 15 seconds...')
        await seconds(15)
      }
    }
  }

  return {
    finalize,
    waitForPublish
  }
}

module.exports = {
  blueprint,
  New
}