Amazon Dash Buttonを押すとIFTTT経由で出社時刻を報告する

yamadash.rb

require 'dashed'
require 'net/https'

# main class
class Yamadash
  USERNAME   = 'yamada'
  ICONURL    = ''
  MACADDRESS = '12:34:56:78:90:ab'
  DEVICENAME = 'wlp2s0'

  ENDPOINT   = 'https://maker.ifttt.com/trigger/press_button/with/key/'
  PREPTIME   = 1.5

  def ifttt_key
    key = ARGV[0]
    if key.nil?
      puts "require IFTTT keycode as an argument:\
      #{ENDPOINT}/KEYCODE"
    end
    key
  end

  def arrive_at
    Time.now + PREPTIME * 60 * 60
  end

  def roughly_arrive_at
    time = arrive_at
    "#{hour(time.hour)}#{round_min(time.min)}"
  end

  def hour(hour)
    "#{hour}時"
  end

  def round_min(min)
    rounded = min.round(-1)
    if (rounded == 60) || rounded.zero?
      nil
    else
      "#{rounded}分"
    end
  end

  def message
    "おはようございます。\n#{roughly_arrive_at}ごろ出社します。"
  end

  def wait_press_button(key)
    Dashed::Button.new(MACADDRESS, DEVICENAME).on_press do
      uri = URI.parse(ENDPOINT + key)
      http = Net::HTTP.new(uri.host, uri.port)
      http.use_ssl = true
      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
      req = Net::HTTP::Post.new(uri.path)
      req.set_form_data(value1: message, value2: USERNAME, value3: ICONURL)
      http.request(req)
    end
  end

  def run
    key = ifttt_key
    return if key.nil?
    wait_press_button(key)
  end

  new.run if __FILE__ == $PROGRAM_NAME
end