tooot/src/screens/Compose/utils/post.ts

import apiInstance from '@api/instance'
import { ComposeState } from '@screens/Compose/utils/types'
import * as Crypto from 'expo-crypto'

const composePost = async (
  params: Nav.RootStackParamList['Screen-Compose'],
  composeState: ComposeState
) => {
  const formData = new FormData()

  if (composeState.replyToStatus) {
    try {
      await apiInstance<Mastodon.Status>({
        method: 'get',
        url: `statuses/${composeState.replyToStatus.id}`
      })
    } catch (err) {
      if (err.status && err.status == 404) {
        return Promise.reject({ removeReply: true })
      }
    }
    formData.append('in_reply_to_id', composeState.replyToStatus.id)
  }

  if (composeState.spoiler.active) {
    formData.append('spoiler_text', composeState.spoiler.raw)
  }

  formData.append('status', composeState.text.raw)

  if (composeState.poll.active) {
    Object.values(composeState.poll.options).forEach(
      e => e && e.length && formData.append('poll[options][]', e)
    )
    formData.append('poll[expires_in]', composeState.poll.expire)
    formData.append('poll[multiple]', composeState.poll.multiple.toString())
  }

  if (
    composeState.attachments.uploads.filter(
      upload => upload.remote && upload.remote.id
    ).length
  ) {
    formData.append('sensitive', composeState.attachments.sensitive.toString())
    composeState.attachments.uploads.forEach(e =>
      formData.append('media_ids[]', e.remote!.id!)
    )
  }

  formData.append('visibility', composeState.visibility)

  return apiInstance<Mastodon.Status>({
    method: 'post',
    url: 'statuses',
    headers: {
      'Idempotency-Key': await Crypto.digestStringAsync(
        Crypto.CryptoDigestAlgorithm.SHA256,
        composeState.spoiler.raw +
          composeState.text.raw +
          composeState.poll.options['0'] +
          composeState.poll.options['1'] +
          composeState.poll.options['2'] +
          composeState.poll.options['3'] +
          composeState.poll.multiple +
          composeState.poll.expire +
          composeState.attachments.sensitive +
          composeState.attachments.uploads.map(upload => upload.remote?.id) +
          composeState.visibility +
          (params?.type === 'edit' ? Math.random() : '')
      )
    },
    body: formData
  })
}

export default composePost