Add custom karma.coffee

hubot-scripts.json

@@ -1 +1 @@
-["redis-brain.coffee", "tweet-content.coffee", "google.coffee"]
+["redis-brain.coffee", "tweet-content.coffee", "google.coffee", "karma.coffee"]

scripts/karma.coffee

@@ -0,0 +1,111 @@
+# Description:
+#   Track arbitrary karma
+#
+# Dependencies:
+#   None
+#
+# Configuration:
+#   None
+#
+# Commands:
+#   <thing>++ - give thing some karma
+#   <thing>-- - take away some of thing's karma
+#   hubot karma <thing> - check thing's karma (if <thing> is omitted, show the top 5)
+#   hubot karma empty <thing> - empty a thing's karma
+#   hubot karma best - show the top 5
+#   hubot karma worst - show the bottom 5
+#
+# Author:
+#   stuartf
+
+class Karma
+
+  constructor: (@robot) ->
+    @cache = {}
+
+    @increment_responses = [
+      "+1!", "gained a level!", "is on the rise!", "leveled up!"
+    ]
+
+    @decrement_responses = [
+      "took a hit! Ouch.", "took a dive.", "lost a life.", "lost a level."
+    ]
+
+    @robot.brain.on 'loaded', =>
+      if @robot.brain.data.karma
+        @cache = @robot.brain.data.karma
+
+  kill: (thing) ->
+    delete @cache[thing]
+    @robot.brain.data.karma = @cache
+
+  increment: (thing) ->
+    unless thing is msg.message.user.name
+      @cache[thing] ?= 0
+      @cache[thing] += 1
+      @robot.brain.data.karma = @cache
+
+  decrement: (thing) ->
+    unless thing is msg.message.user.name
+      @cache[thing] ?= 0
+      @cache[thing] -= 1
+      @robot.brain.data.karma = @cache
+
+  incrementResponse: ->
+     @increment_responses[Math.floor(Math.random() * @increment_responses.length)]
+
+  decrementResponse: ->
+     @decrement_responses[Math.floor(Math.random() * @decrement_responses.length)]
+
+  get: (thing) ->
+    k = if @cache[thing] then @cache[thing] else 0
+    return k
+
+  sort: ->
+    s = []
+    for key, val of @cache
+      s.push({ name: key, karma: val })
+    s.sort (a, b) -> b.karma - a.karma
+
+  top: (n = 5) ->
+    sorted = @sort()
+    sorted.slice(0, n)
+
+  bottom: (n = 5) ->
+    sorted = @sort()
+    sorted.slice(-n).reverse()
+
+module.exports = (robot) ->
+  karma = new Karma robot
+  robot.hear /(\S+[^+\s])\+\+(\s|$)/, (msg) ->
+    subject = msg.match[1].toLowerCase()
+    karma.increment subject
+    msg.send "#{subject} #{karma.incrementResponse()} (Karma: #{karma.get(subject)})"
+
+  robot.hear /(\S+[^-\s])--(\s|$)/, (msg) ->
+    subject = msg.match[1].toLowerCase()
+    karma.decrement subject
+    msg.send "#{subject} #{karma.decrementResponse()} (Karma: #{karma.get(subject)})"
+
+  robot.respond /karma empty ?(\S+[^-\s])$/i, (msg) ->
+    subject = msg.match[1].toLowerCase()
+    karma.kill subject
+    msg.send "#{subject} has had its karma scattered to the winds."
+
+  robot.respond /karma( best)?$/i, (msg) ->
+    verbiage = ["The Best"]
+    for item, rank in karma.top()
+      verbiage.push "#{rank + 1}. #{item.name} - #{item.karma}"
+    msg.send verbiage.join("\n")
+
+  robot.respond /karma worst$/i, (msg) ->
+    verbiage = ["The Worst"]
+    for item, rank in karma.bottom()
+      verbiage.push "#{rank + 1}. #{item.name} - #{item.karma}"
+    msg.send verbiage.join("\n")
+
+  robot.respond /karma (\S+[^-\s])$/i, (msg) ->
+    match = msg.match[1].toLowerCase()
+    if match != "best" && match != "worst"
+      msg.send "\"#{match}\" has #{karma.get(match)} karma."
+