Adding in tctransit.coffee

src/scripts/tctransit.coffee

@@ -0,0 +1,68 @@
+# Description:
+#   Allows users to check MetroTransit times in the TwinCities
+#   metrotransit.herokuapp.com
+#
+# Dependencies:
+#   none
+# 
+# Configuration:
+#   none
+#
+# Commands:
+#   hubot when is the next <route #> going <north/south/east/west> from <4 letter stop code OR street name>
+#
+# Author:
+#   pyro2927
+
+module.exports = (robot) ->
+  robot.respond /when is the next (.*) going (.*) from (.*)/i, (msg) ->
+    route = msg.match[1]
+    direction = msg.match[2]
+    dirNum = 4
+    if direction.toLowerCase() == "east"
+      dirNum = 2
+    else if direction.toLowerCase() == "west"
+      dirNum = 3
+    else if direction.toLowerCase() == "south"
+      dirNum = 1
+
+    stop = msg.match[3]
+    if (stop.length != 4)
+      TransitAPI.search_stop_codes(route, dirNum, stop, msg)
+    else
+      TransitAPI.fetch_next_stop(route, dirNum, stop, msg)
+
+
+class TransitAPI
+  constructor: ->
+
+  fetch_next_stop: (route, dirNum, stopCode, msg) =>
+    msg.http('http://metrotransit.herokuapp.com/nextTrip?route=' + route + '&direction=' + dirNum + '&stop=' + stopCode)
+      .get() (err, res, body) =>
+        stops = JSON.parse(body)
+        if stops.count <= 0
+          msg.send "No next stops"
+          return
+        time = stops[0].time
+        if time.match(/Min$/)
+          time = "in " + time
+        else if time.match(/:/)
+          time = "at " + time
+        msg.send "The next " + route + " at " + stops[0].stop_name + " is " + time
+
+  search_stop_codes: (route, dirNum, stopName, msg) =>
+    msg.http('http://metrotransit.herokuapp.com/stops?route=' + route + '&direction=' + dirNum)
+      .get() (err, res, body) =>
+        stops = JSON.parse(body)
+        # too bad, no stops found for this
+        if stops.count <= 0
+          msg.send "No stops available for the " + route + " going that direction"
+          return
+        # see if any of our stops match
+        for stop in stops
+          if stop.name.toLowerCase().indexOf(stopName.toLowerCase()) > -1
+            this.fetch_next_stop(route, dirNum, stop.key, msg)
+            return
+        msg.send "No stops found with name: " + stopName
+
+TransitAPI = new TransitAPI()