sensate.js

// Import sensate
import Sensate, { Event, Message } from 'sensate'

// Import wanted gateways
import SlackGateway from 'sensate-gateway-slack'

// Logging
const log = () => console.log.apply(console, arguments)

// Create a new sensate instance that connects to slack
const bot = new Sensate(new SlackGateway({
  // The slack token used in the connection
  token: 'dummy'
}), { debug: true })

// When the bot is connected to the gateway
bot.on(Event.CONNECTED, () => {
  log('Connection initiated.')
})

// When the bot disconects from the gateway
bot.on(Event.DISCONNECTED, () => {
  log('Connection terminated.')
})

// Bind message listener
bot.on(Event.MESSAGE_RECEIVED, (message) => {
  const user = message.user
  const type = message.type

  // Handle different message types differently
  switch (type) {
    // When a user joins a channel
    case Message.CHANNEL_JOIN: {
      const channel = message.channel
      log(`${user.name} joined ${channel.name}`)

      // Speak on the channel
      bot.reply(message, `Welcome, ${user.name}!`)
      break
    }

    // When a user parts a channel
    case Message.CHANNEL_PART: {
      const channel = message.channel
      log(`${user.name} parted ${channel.name}`)

      // Speak on the channel
      bot.reply(message, `Why did ${user.name} have to go?`)
      break
    }

    // When a user sends a channel message
    case Message.CHANNEL_MESSAGE: {
      const channel = message.channel
      log(`${user.name} on ${channel.name}: ${message.text}`)

      // Send a private message to the message sender
      bot.replyPrivate(message, `What did you mean by "${message.text}"?`)
      break
    }

    // When a user sends a direct message
    case Message.DIRECT_MESSAGE: {
      log(`${user.name} in private: ${message.text}`)

      // With direct messages, `bot.reply` replies in private
      bot.reply(message, `${message.text}`)
      break
    }

    default:
      log(`Unhandled message type ${type}`)
  }
})