const fetchEntity = async (api, id) => api.query.contentDirectory.entityById(id)

const processUpload = async (api, u) => {
  if (!u.classesOfEntityIds) return console.log(`no classesOfEntityIds`)
  u.entityIds = await Promise.all(
    u.entityIds.map(async (id) => {
      const entity = await fetchEntity(api, id)
      return { id, ...entity.toJSON() }
    })
  )
  return u

  const index = u.classesOfEntityIds
    .map((c, i) => (c === 4 ? i : null))
    .filter((i) => i)
  if (!index[0]) return console.log(`no index`)

  const entityId = u.entityIds[index[0]]
  if (!entityId) return console.log(`no entityId`)
  console.log(`fetching entity ${entityId}`)
  const entity = await fetchEntity(api, entityId)
  entity.id = entityId
  //console.log(`values`, entity.values)
}

console.log(`connecting ..`)

const fs = require('fs')
const { types } = require('@joystream/types')
const { ApiPromise, WsProvider } = require('@polkadot/api')
const { Header } = require('@polkadot/types/interfaces')

const processChanges = async () => {
  const provider = new WsProvider(`ws://localhost:9944`)
  const api = await ApiPromise.create({ provider, types })

  let uploads = []
  const files = ['./changes.json', './changes2.json']
  files.forEach((file) => {
    const changes = JSON.parse(fs.readFileSync(`./curation/${file}`, 'utf8'))
    uploads.push(...changes.filter((c) => c && c.action === 'Video Upload'))
  })

  await api.isReady
  console.log(`processing ${uploads.length} uploads`)
  results = await Promise.all(uploads.map((u) => processUpload(api, u)))
  fs.writeFileSync(`uploads.json`, JSON.stringify(results))
  process.exit(0)
}
processChanges()