const logger = require('@pubsweet/logger')
const get = require('lodash/get')

const createNewTeam = async (collectionId, role, userId, TeamModel) => {
  let permissions, group, name
  switch (role) {
    case 'handlingEditor':
      permissions = 'handlingEditor'
      group = 'handlingEditor'
      name = 'Handling Editor'
      break
    case 'reviewer':
      permissions = 'reviewer'
      group = 'reviewer'
      name = 'Reviewer'
      break
    case 'author':
      permissions = 'author'
      group = 'author'
      name = 'author'
      break
    default:
      break
  }

  const teamBody = {
    teamType: {
      name: role,
      permissions,
    },
    group,
    name,
    object: {
      type: 'collection',
      id: collectionId,
    },
    members: [userId],
  }
  let team = new TeamModel(teamBody)
  team = await team.save()
  return team
}

const setupManuscriptTeam = async (models, user, collectionId, role) => {
  const teams = await models.Team.all()
  user.teams = user.teams || []
  const filteredTeams = teams.filter(
    team =>
      team.group === role &&
      team.object.type === 'collection' &&
      team.object.id === collectionId,
  )

  if (filteredTeams.length > 0) {
    let team = filteredTeams[0]
    team.members.push(user.id)

    try {
      team = await team.save()
      user.teams.push(team.id)
      await user.save()
      return team
    } catch (e) {
      logger.error(e)
    }
  } else {
    const team = await createNewTeam(collectionId, role, user.id, models.Team)
    user.teams.push(team.id)
    await user.save()
    return team
  }
}

const removeTeamMember = async (teamId, userId, TeamModel) => {
  const team = await TeamModel.find(teamId)
  const members = team.members.filter(member => member !== userId)
  team.members = members

  await team.save()
}

const getTeamMembersByCollection = async (collectionId, role, TeamModel) => {
  const teams = await TeamModel.all()
  // const members = get(
  //   teams.find(
  //     team =>
  //       team.group === role &&
  //       team.object.type === 'collection' &&
  //       team.object.id === collectionId,
  //   ),
  //   'members',
  // )
  const team = teams.find(
    team =>
      team.group === role &&
      team.object.type === 'collection' &&
      team.object.id === collectionId,
  )

  return team.members
}

const getTeamByGroupAndCollection = async (collectionId, role, TeamModel) => {
  const teams = await TeamModel.all()
  return teams.find(
    team =>
      team.group === role &&
      team.object.type === 'collection' &&
      team.object.id === collectionId,
  )
}

module.exports = {
  createNewTeam,
  setupManuscriptTeam,
  removeTeamMember,
  getTeamMembersByCollection,
  getTeamByGroupAndCollection,
}