delete.js

const config = require('config')
const {
  Team,
  services,
  authsome: authsomeHelper,
} = require('pubsweet-component-helper-service')
const {
  deleteFilesS3,
} = require('pubsweet-component-mts-package/src/PackageManager')

const { last, get } = require('lodash')

const s3Config = get(config, 'pubsweet-component-aws-s3', {})

const notifications = require('./emails/notifications')

module.exports = models => async (req, res) => {
  const { collectionId, invitationId } = req.params
  const teamHelper = new Team({ TeamModel: models.Team, collectionId })

  try {
    const collection = await models.Collection.find(collectionId)

    const authsome = authsomeHelper.getAuthsome(models)
    const target = {
      collection,
      path: req.route.path,
    }
    const canDelete = await authsome.can(req.user, 'DELETE', target)
    if (!canDelete)
      return res.status(403).json({
        error: 'Unauthorized.',
      })

    collection.invitations = collection.invitations || []
    const invitation = collection.invitations.find(
      invitation => invitation.id === invitationId,
    )
    if (!invitation)
      return res.status(404).json({
        error: `Invitation ${invitationId} not found`,
      })

    const team = await teamHelper.getTeam({
      role: invitation.role,
      objectType: 'collection',
    })

    collection.invitations = collection.invitations.filter(
      inv => inv.id !== invitation.id,
    )

    collection.status = 'submitted'
    delete collection.handlingEditor
    await collection.save()

    await teamHelper.removeTeamMember({
      teamId: team.id,
      userId: invitation.userId,
    })

    const UserModel = models.User
    const user = await UserModel.find(invitation.userId)
    user.teams = user.teams.filter(userTeamId => team.id !== userTeamId)
    await user.save()

    const FragmentModel = models.Fragment
    const fragment = await FragmentModel.find(
      last(get(collection, 'fragments', [])),
    )
    if (!fragment)
      return res.status(404).json({
        error: `Fragment ${fragment.id} not found`,
      })

    const fileKeys = []
    fragment.recommendations &&
      fragment.recommendations.forEach(recommendation => {
        recommendation.comments.forEach(comment => {
          comment.files &&
            comment.files.forEach(file => {
              fileKeys.push(file.id)
            })
        })
      })
    const responseToReviewersFileId = get(
      fragment,
      'responseToReviewers.file.id',
    )
    if (responseToReviewersFileId) fileKeys.push(responseToReviewersFileId)
    if (fileKeys.length > 1) {
      await deleteFilesS3({ fileKeys, s3Config })
    }

    fragment.invitations = []
    fragment.recommendations = []
    fragment.responseToReviewers && delete fragment.responseToReviewers
    fragment.revision && delete fragment.revision
    fragment.save()

    notifications.sendInvitedHEEmail({
      models,
      collection,
      invitedHE: user,
      isCanceled: true,
      baseUrl: services.getBaseUrl(req),
    })

    return res.status(200).json({})
  } catch (e) {
    const notFoundError = await services.handleNotFoundError(e, 'Collection')
    return res.status(notFoundError.status).json({
      error: notFoundError.message,
    })
  }
}