Basecamp to-dos to HipChat

gistfile1.rb

require "net/https"
require "uri"
require "json"

$filename = "timestamp.txt"
$time_format = "%Y-%m-%dT%H:%M:%S%z"

def event_request(timestamp, page = 1)
  # setup a GET request to the basecamp API
  bc_url = "https://basecamp.com/#{ENV['BASECAMP_ID']}/api/v1/events.json?since=#{timestamp}"
  bc_url += "&page=#{page}" if page > 1
    
  bc_uri = URI.parse(bc_url)

  bc_http = Net::HTTP.new(bc_uri.host, bc_uri.port)
  bc_http.use_ssl = true

  # BC API requires us to pass a custom user agent
  headers = {
      'User-Agent' => "HighFidelity ([email protected])"
  }
  
  # fire off the request to the BC API and parse out the JSON response
  bc_req = Net::HTTP::Get.new bc_uri.request_uri, headers
  bc_req.basic_auth ENV['BASECAMP_USER'], ENV['BASECAMP_PASSWORD']

  bc_res = bc_http.request(bc_req)
  json = JSON.parse(bc_res.body)

  # write the time of this request to the file at filename
  File.open($filename, 'w') do |file|
    file.write Time.now.strftime $time_format
  end

  # setup requests to the hipchat API
  hc_uri = URI.parse("https://api.hipchat.com/v1/rooms/message?auth_token=#{ENV['BC_HIPCHAT_TOKEN']}")

  hc_http = Net::HTTP.new(hc_uri.host, hc_uri.port)
  hc_http.use_ssl = true

  hc_req = Net::HTTP::Post.new(hc_uri.request_uri)

  # default params for each message
  message_params = {
    :room_id => ENV['BC_HIPCHAT_ROOM_ID'],
    :from => "Basecamp",
    :color => "purple"
  }

  # check each event
  json.each do |event|
    if (summary = event["summary"]).match('to-do')
      # this is a to-do event
      # find where we want to put the anchor
      pre_link_text = "</span> "
      span_close = summary.index(pre_link_text)
      link_text = summary[(span_close + pre_link_text.size)..summary.size]
    
      # construct the message for HipChat
      message = "#{event["creator"]["name"]} #{summary.gsub(link_text, "<a href=#{event['html_url']}>#{link_text}</a>")}"
      message.gsub!("<span>", '')
      message.gsub!("</span>", '')
    
      # send this message to hipchat
      message_params[:message] = message
      hc_req.set_form_data(message_params)
      hc_res = hc_http.request(hc_req)
    end
  end
  
  if json.length == 50
    # there are more than 50 events, we need to grab the next page
    event_request(timestamp, page + 1)
  end
end

# pull the timestamp of last check from file at filename
timestamp = nil

begin
  File.open($filename, 'r') do |file|
    timestamp = file.read
  end
rescue
  # if we didn't have the file, just default to one minute ago
  timestamp = (Time.now - (60 * 10)).strftime $time_format
end

event_request(timestamp)