trend search by otter API

trendsearcher.coffee

# Description:
#   Trend search by otter API
#
# Dependencies:
#   None
#
# Configuration:
#   None
#
# Commands:
#   hubot trend [window] [offset] [lang] <query> - Show otter's search result contents. window="m"(monthly),"w"(weekly),"d"(dately *default*),"h"(hourly)
#
# Notes:
#   <optional notes required for the script>
#
# Author:
#   goldeneggg
 
domainOtter = "http://otter.topsy.com"
apiKey = "09C43A9B270A470B8EB8F2946A9369F3"
 
module.exports = (robot) ->
  robot.respond /trend(?:\s+)((a|m|w|d|h)\s+)?((0|[1-9]\d*)\s+)?(([a-z]+)\s+)?(.+)/i, (msg) ->
    win = if msg.match[2]? then msg.match[2] else "d"
    offset = if msg.match[4]? then msg.match[4] else 0
    lang = if msg.match[6]? then "&allow_lang=#{msg.match[6]}" else ""
    q = msg.match[7]
 
    now = Math.floor(new Date())
    call = now - 6500000
    url = domainOtter + "/search.js?q=#{q}&window=#{win}&offset=#{offset}&perpage=10&call_timestamp=#{call}&apikey=#{apiKey}&_=#{now}" + lang
 
    getMessage = (r) ->
      "【#{r.trackback_total}】 [#{new Date(r.firstpost_date * 1000)}] #{r.content}\n     tb: #{r.trackback_permalink} by @#{r.trackback_author_nick})\n"
 
    callback = (json) ->
      m = ""
      for r in json.response.list
        m += getMessage(r)
 
      msg.send m
 
    req = robot.http(url)
      .header('Accept', 'application/json')
    req.get() (err, res, body) ->
      if err
        return
 
      status = res.statusCode
      if status == 200
        json = JSON.parse(body)
        callback(json)