Feature/feedme

external-scripts.json

@@ -9,4 +9,4 @@
   "hubot-redis-brain",
   "hubot-rules",
   "hubot-shipit"
-]
+]

package.json

@@ -1,10 +1,11 @@
 {
   "name": "hubot",
-  "version": "0.0.0",
+  "version": "0.1.0",
   "private": true,
   "author": "Lorenz Leutgeb <lorenz.leutgeb@catalysts.cc>",
   "description": "A simple helpful robot for Catalysts",
   "dependencies": {
+    "datejs": "^1.0.0-rc3",
     "hubot": "^2.18.0",
     "hubot-diagnostics": "0.0.1",
     "hubot-google-images": "^0.2.6",
@@ -17,9 +18,12 @@
     "hubot-rules": "^0.1.1",
     "hubot-scripts": "^2.16.2",
     "hubot-shipit": "^0.2.0",
-    "hubot-slack": "^3.4.2"
+    "hubot-slack": "^3.4.2",
+    "jquery": "^2.2.3",
+    "jsdom": "^8.4.0",
+    "urllib-sync": "^1.1.2"
   },
   "engines": {
-    "node": "0.10.x"
+    "node": "5.10.x"
   }
 }

scripts/feedme.coffee

@@ -0,0 +1,118 @@
+# Description:
+#   Shows what"s edible.
+#
+# Notes:
+#   This includes
+#    * fetching from fabrik
+#    * fetching from ernis
+#
+# Author: cholter
+
+urllib = require "urllib-sync"
+jsdom = require "jsdom"
+require "datejs"
+
+DAY = 1000 * 60 * 60  * 24
+
+getDateDiff = (date1, date2, interval) ->
+  return Math.round((date1.getTime() - date2.getTime()) / interval)
+
+fetch = (target) ->
+  return urllib.request(target).data
+
+
+class Fabrik
+  target : "http://www.diefabrik.co.at/mittagsmenue/index.html"
+  holidayMagic : "urlaub"
+  errors:
+    closed : "fabrik is closed"
+    menuFromPast :"the menu is outdated"
+    menuFromFuture :"the menu is from the future"
+    resting :"fabrik is on a day off"
+    holiday :"fabrik is probably on holiday, fall back to manual check"
+
+  constructor: (@robot) ->
+
+  checkHoliday: (text) =>
+    return text.toLowerCase().indexOf(@holidayMagic) > 0
+
+  parseDates: ($) ->
+    docDate = $("h2:eq(0)").html()
+    return /(\d{2}\.\d{2}\.\d{4}) bis (\d{2}\.\d{2}\.\d{4})/.exec(docDate)
+
+  extractMeal: ($, day) ->
+
+    # Saturday & Sunday
+    return @errors.closed if day == 6 or day == 0
+    menu = $(".contenttable .tr-#{(day-1)*2} .td-2").html()
+    # Ruhetag
+    return @errors.resting if menu.toLowerCase() == 'ruhetag'
+    # all good :)
+    return menu
+
+  getMenu: () =>
+    now = new Date()
+    day = now.getDay()
+    lastCheck = new Date(@robot.brain.get "feedme.fabrik.lastCheck" or 0)
+    # only check once per day, otherwise we're good to go
+    if getDateDiff(now, lastCheck, DAY) > 0
+      rawbody = fetch(@target)
+
+      return @errors.holiday if @checkHoliday(rawbody.toString())
+
+      # hack to include jQuery
+      $ = require("jquery")(jsdom.jsdom(rawbody).defaultView)
+      parsedDates = @parseDates($)
+
+      # check for outdated menu
+      if now.getTime() > (Date.parseExact(parsedDates[2], "d.M.yyyy").getTime() + DAY)
+        @robot.brain.set "feedme.fabrik.save", @errors.menuFromPast
+
+      # check for future menu
+      else if now.getTime() < Date.parseExact(parsedDates[1], "d.M.yyyy").getTime()
+        @robot.brain.set "feedme.fabrik.save", @errors.menuFromFuture
+
+      else
+        @robot.brain.set "feedme.fabrik.save", @extractMeal($, day)
+
+      @robot.brain.set "feedme.fabrik.lastCheck", now
+
+class Ernis
+  target : "http://www.ernis.at"
+  errors:
+	  closed : "ernis is closed"
+
+  constructor: (@robot) ->
+
+  extractMeal: ($, day) ->
+    return $("#accordion > div .moduletable:eq(#{day-1}) > div").text().trim()
+
+  getMenu: () =>
+    now = new Date()
+    day = now.getDay()
+
+    lastCheck = new Date(@robot.brain.get "feedme.ernis.lastCheck" or 0)
+    # only check once per day, otherwise we're good to go
+    if getDateDiff(now, lastCheck, DAY) > 0
+      rawbody = fetch(@target)
+
+      # hack to include jQuery
+      $ = require("jquery")(jsdom.jsdom(rawbody).defaultView)
+      # ernis closed
+      if day > 0 & day < 6
+        @robot.brain.set "feedme.ernis.save", @extractMeal($, day)
+      else @robot.brain.set "feedme.ernis.save", @errors.closed
+
+      @robot.brain.set "feedme.ernis.lastCheck", now
+
+
+module.exports = (robot) ->
+
+  fabrik = new Fabrik(robot)
+  ernis = new Ernis(robot)
+  robot.respond /feedme/i, (res) ->
+    fabrik.getMenu()
+    ernis.getMenu()
+    fabrikMenu = robot.brain.get "feedme.fabrik.save"
+    ernisMenu = robot.brain.get "feedme.ernis.save"
+    res.send "Heutiges Mittagsmenü: \nFabrik: \n#{fabrikMenu}\n\nErnis: \n#{ernisMenu}"