sebulbo.rb

#!/usr/bin/env ruby

require 'faye/websocket'
require 'net/http'
require 'eventmachine'
require 'rest-client'

SMART_BULB = {
  ip: 'shelly_ip_addr',
  user: 'shelly_user',
  password: 'shelly_password'
}

def shelly_request(url)
  RestClient::Request.new(
    :method => 'get',
    :url => url,
    :user => SMART_BULB[:user],
    :password => SMART_BULB[:password],
  ).execute
end

def up?(server, port)
  http = Net::HTTP.start(server, port, { open_timeout: 5, read_timeout: 5 })
  response = http.head('/')
  response.code == '401'
rescue Timeout::Error, SocketError
  false
end

def blink_on_load(current_status)
  for i in 1..6 do
    shelly_request("http://#{SMART_BULB[:ip]}/light/0?turn=on&brightness=#{i * 10}")
  end

  shelly_request("http://#{SMART_BULB[:ip]}/light/0?turn=#{current_status}&brightness=10")
end

def blink_on_disconnect(current_status)
  shelly_request("http://#{SMART_BULB[:ip]}/light/0?turn=on&brightness=5")

  sleep 0.1

  shelly_request("http://#{SMART_BULB[:ip]}/light/0?turn=#{current_status}&brightness=10")
end

unless up?(SMART_BULB[:ip], '80')
  puts '[!] Issues connecting to Shelly Light Bulb'
  exit 1
end

total_users = nil
bulb_status = nil

EM.run {
  ws = Faye::WebSocket::Client.new('wss://lightbulb.url')

  ws.on :open do |event|
    puts 'Connected to Litebulb!'
  end

  ws.on :message do |event|
    ws_data = event.data

    if ws_data.start_with?('USERS')
      new_users = ws_data.match(%r{^USERS\:(.*?)$})[1]

      unless total_users.nil?
        if new_users > total_users
          blink_on_load(bulb_status)
        else
          blink_on_disconnect(bulb_status)
        end
      end

      total_users = new_users
    end

    if ws_data.start_with?('BULB')
      parsed_status = ws_data.match(%r{^BULB\:(.*?)$})[1]
      bulb_status = parsed_status == '1' ? 'on' : 'off'

      shelly_request("http://#{SMART_BULB[:ip]}/light/0/?turn=#{bulb_status}")

      puts "Bulb has been turned #{bulb_status}"
    end
  end

  ws.on :close do |_event|
    # p [:close, event.code, event.reason]
    ws = nil
  end
}