Slackbot form for multi-user

form.js

#!/usr/bin/env node

const isPhone = require('is-phone')
const RtmClient = require('@slack/client').RtmClient
const MemoryDataStore = require('@slack/client').MemoryDataStore
const RTM_EVENTS = require('@slack/client').RTM_EVENTS
const token = process.env.SLACK_TOKEN || ''

const rtm = new RtmClient(token, {
  logLevel: 'error',
  // logLevel: 'debug',
  // Initialise a data store for our client, this will load additional helper functions for the storing and retrieval of data
  dataStore: new MemoryDataStore(),
  // Boolean indicating whether Slack should automatically reconnect after an error response
  autoReconnect: true,
  // Boolean indicating whether each message should be marked as read or not after it is processed
  autoMark: true
})

/* proxy for now, for flexibility in this area later */
const setState = (user, newState) => {
  state[user] = newState
}

const states = {
  DEFAULT: 'DEFAULT',
  GET_NAME: 'GET_NAME',
  GET_ADDRESS: 'GET_ADDRESS',
  GET_PHONE: 'GET_PHONE',
  GET_MESSAGE: 'GET_MESSAGE'
}

/* init state, set initial state */
let state = {}
let responses = {}

/* functions that send responses and set state, called based on state */

const handlers = {}

handlers.DEFAULT = (message) => {
  rtm.sendMessage("Welcome! What's your name?", message.channel)
  setState(message.user, states.GET_NAME)
}

handlers.GET_NAME = (message) => {
  responses[message.user] = { name: message.text }
  console.log(responses)
  rtm.sendMessage("Ok, what's your address?", message.channel)
  setState(message.user, states.GET_ADDRESS)
}

handlers.GET_ADDRESS = (message) => {
  responses[message.user].address = message.text
  console.log(responses)
  rtm.sendMessage("What's your phone number?", message.channel)
  setState(message.user, states.GET_PHONE)
}

handlers.GET_PHONE = (message) => {
  if (isPhone(message.text)) {
    responses[message.user].phone = message.text
    console.log(responses)
    rtm.sendMessage('Do you have a message you want to leave?', message.channel)
    setState(message.user, states.GET_MESSAGE)
  } else {
    rtm.sendMessage('not a valid phone', message.channel)
  }
}

handlers.GET_MESSAGE = (message) => {
  responses[message.user].message = message.text
  console.log('User FORM result', responses[message.user])
  rtm.sendMessage('All set', message.channel)
  setState(message.user, states.DEFAULT)
}

const router = (message) => {
  let userState = state[message.user]
  if (!userState) {
    state[message.user] = 'DEFAULT'
  }
  handlers[state[message.user]](message)
}

// Listens to all `message` events from the team
rtm.on(RTM_EVENTS.MESSAGE, (message) => {
  router(message)
})

rtm.start()