# Description:
#   Announce Scout notifications to a room sepecified by the URL.
#
# Dependencies:
#   None
#
# Configuration:
#   None
#
# Commands:
#   None
#
# Notes:
#   To use:
#     setup http://hostname/hubot/scoutapp/ROOMNUMBER as
#     your notification webook. If on Heroku lookup the hostname where
#     the hubot server is running. (e.g. my-hubot.herokuapp.com)
#
# Author:
#   gstark

module.exports = (robot) ->
  robot.router.post '/hubot/scoutapp/:room', (req, res) ->
    room = req.params.room

    data = JSON.parse req.body.payload

    # Example post data
    #
    # {
    #   "id": 999999,
    #   "time": "2012-03-05T15:36:51Z",
    #   "server_name": "Blade",
    #   "server_hostname": "blade",
    #   "lifecycle": "start", // can be [start|end]
    #   "title": "Last minute met or exceeded 3.00 , increasing to 3.50 at 01:06AM",
    #   "plugin_name": "Load Average",
    #   "metric_name": "last_minute",
    #   "metric_value": 3.5,
    #   "severity": "warning", // warning = normal threshold, critical = SMS threshold
    #   "url": "https://scoutapp.com/a/999999",
    #   "sparkline_url":"https://scoutapp.com/alert_sparkline.png"
    # }

    robot.messageRoom room, "Scout #{data.severity} - #{data.server_name} on host #{data.server_hostname} #{data.lifecycle}ed - #{data.plugin_name} - #{data.title} - Current value #{data.metric_name}=#{data.metric_value} - Details: #{data.url}"
    robot.messageRoom room, data.sparkline_url if data.sparkline_url

    # Send back an empty response
    res.writeHead 204, { 'Content-Length': 0 }
    res.end()