const liborg = require('libnpmorg')
const otplease = require('./utils/otplease.js')
const Table = require('cli-table3')
const BaseCommand = require('./base-command.js')

class Org extends BaseCommand {
  static get description () {
    return 'Manage orgs'
  }

  /* istanbul ignore next - see test/lib/load-all-commands.js */
  static get name () {
    return 'org'
  }

  /* istanbul ignore next - see test/lib/load-all-commands.js */
  static get usage () {
    return [
      'set orgname username [developer | admin | owner]',
      'rm orgname username',
      'ls orgname [<username>]',
    ]
  }

  async completion (opts) {
    const argv = opts.conf.argv.remain
    if (argv.length === 2)
      return ['set', 'rm', 'ls']

    switch (argv[2]) {
      case 'ls':
      case 'add':
      case 'rm':
      case 'set':
        return []
      default:
        throw new Error(argv[2] + ' not recognized')
    }
  }

  exec (args, cb) {
    this.org(args)
      .then(x => cb(null, x))
      .catch(err => err.code === 'EUSAGE'
        ? cb(err.message)
        : cb(err)
      )
  }

  async org ([cmd, orgname, username, role], cb) {
    return otplease(this.npm.flatOptions, opts => {
      switch (cmd) {
        case 'add':
        case 'set':
          return this.set(orgname, username, role, opts)
        case 'rm':
          return this.rm(orgname, username, opts)
        case 'ls':
          return this.ls(orgname, username, opts)
        default:
          throw Object.assign(new Error(this.usage), { code: 'EUSAGE' })
      }
    })
  }

  set (org, user, role, opts) {
    role = role || 'developer'
    if (!org)
      throw new Error('First argument `orgname` is required.')

    if (!user)
      throw new Error('Second argument `username` is required.')

    if (!['owner', 'admin', 'developer'].find(x => x === role))
      throw new Error('Third argument `role` must be one of `owner`, `admin`, or `developer`, with `developer` being the default value if omitted.')

    return liborg.set(org, user, role, opts).then(memDeets => {
      if (opts.json)
        this.npm.output(JSON.stringify(memDeets, null, 2))
      else if (opts.parseable) {
        this.npm.output(['org', 'orgsize', 'user', 'role'].join('\t'))
        this.npm.output([
          memDeets.org.name,
          memDeets.org.size,
          memDeets.user,
          memDeets.role,
        ].join('\t'))
      } else if (!opts.silent && opts.loglevel !== 'silent')
        this.npm.output(`Added ${memDeets.user} as ${memDeets.role} to ${memDeets.org.name}. You now have ${memDeets.org.size} member${memDeets.org.size === 1 ? '' : 's'} in this org.`)

      return memDeets
    })
  }

  rm (org, user, opts) {
    if (!org)
      throw new Error('First argument `orgname` is required.')

    if (!user)
      throw new Error('Second argument `username` is required.')

    return liborg.rm(org, user, opts).then(() => {
      return liborg.ls(org, opts)
    }).then(roster => {
      user = user.replace(/^[~@]?/, '')
      org = org.replace(/^[~@]?/, '')
      const userCount = Object.keys(roster).length
      if (opts.json) {
        this.npm.output(JSON.stringify({
          user,
          org,
          userCount,
          deleted: true,
        }))
      } else if (opts.parseable) {
        this.npm.output(['user', 'org', 'userCount', 'deleted'].join('\t'))
        this.npm.output([user, org, userCount, true].join('\t'))
      } else if (!opts.silent && opts.loglevel !== 'silent')
        this.npm.output(`Successfully removed ${user} from ${org}. You now have ${userCount} member${userCount === 1 ? '' : 's'} in this org.`)
    })
  }

  ls (org, user, opts) {
    if (!org)
      throw new Error('First argument `orgname` is required.')

    return liborg.ls(org, opts).then(roster => {
      if (user) {
        const newRoster = {}
        if (roster[user])
          newRoster[user] = roster[user]

        roster = newRoster
      }
      if (opts.json)
        this.npm.output(JSON.stringify(roster, null, 2))
      else if (opts.parseable) {
        this.npm.output(['user', 'role'].join('\t'))
        Object.keys(roster).forEach(user => {
          this.npm.output([user, roster[user]].join('\t'))
        })
      } else if (!opts.silent && opts.loglevel !== 'silent') {
        const table = new Table({ head: ['user', 'role'] })
        Object.keys(roster).sort().forEach(user => {
          table.push([user, roster[user]])
        })
        this.npm.output(table.toString())
      }
    })
  }
}
module.exports = Org
