Add earthquakes script

src/scripts/quakes.coffee

@@ -0,0 +1,43 @@
+# Description:
+#   Ask hubot about the recent earthquakes in the last (hour, day, week or month).
+#
+# Dependencies:
+#   None
+#
+# Configuration:
+#   None
+#
+# Commands:
+#   hubot quakes (intensity|all|significant) (period) [limit]
+#
+# Author:
+#   EnriqueVidal
+
+lookup_site = "http://earthquake.usgs.gov"
+
+module.exports = (robot)->
+  robot.respond /quakes (([12](\.[05])?)|all|significant)? (hour|day|week|month)( \d+)?$/i, (message)->
+    check_for_rapture message, message.match[1], message.match[4], parseInt( message.match[5] )
+
+  check_for_rapture = (message, intensity, period, limit)->
+    rapture_url = [ lookup_site, "earthquakes", "feed", "geojson", intensity, period ].join '/'
+
+    message.http( rapture_url ).get() (error, response, body)->
+      return message.send 'Sorry, something went wrong' if error
+
+      list  = JSON.parse( body ).features
+      count = 0
+
+      for quake in list
+        count++
+        quake = quake.properties
+        time  = build_time quake
+        url   = [ lookup_site, quake.url ].join ''
+
+        message.send "Magnitude: #{ quake.mag }, Location: #{ quake.place }, Time: #{ time } - #{ url }"
+
+        break if count is limit
+
+    build_time = ( object )->
+      time = new Date object.time * 1000
+      [ time.getHours(), time.getMinutes(), time.getSeconds() ].join ':'