manifold/functions/src/on-create-contract.ts

import * as functions from 'firebase-functions'

import { getUser } from './utils'
import { createNotification } from './create-notification'
import { Contract } from '../../common/contract'
import { parseMentions, richTextToString } from '../../common/util/parse'
import { JSONContent } from '@tiptap/core'
import { addUserToContractFollowers } from './follow-market'

export const onCreateContract = functions
  .runWith({ secrets: ['MAILGUN_KEY'] })
  .firestore.document('contracts/{contractId}')
  .onCreate(async (snapshot, context) => {
    const contract = snapshot.data() as Contract
    const { eventId } = context

    const contractCreator = await getUser(contract.creatorId)
    if (!contractCreator) throw new Error('Could not find contract creator')

    const desc = contract.description as JSONContent
    const mentioned = parseMentions(desc)
    await addUserToContractFollowers(contract.id, contractCreator.id)

    await createNotification(
      contract.id,
      'contract',
      'created',
      contractCreator,
      eventId,
      richTextToString(desc),
      { contract, recipients: mentioned }
    )
  })