Goal states are now tracked in level sessions (state.goalStates)

app/lib/LevelBus.coffee

@@ -1,6 +1,7 @@
 Bus = require './Bus'
 {me} = require 'lib/auth'
 LevelSession = require 'models/LevelSession'
+utils = require 'lib/utils'
 
 module.exports = class LevelBus extends Bus
 
@@ -22,6 +23,7 @@ module.exports = class LevelBus extends Bus
     'tome:spell-changed': 'onSpellChanged'
     'tome:spell-created': 'onSpellCreated'
     'application:idle-changed': 'onIdleChanged'
+    'goal-manager:new-goal-states': 'onNewGoalStates'
 
   constructor: ->
     super(arguments...)
@@ -192,6 +194,14 @@ module.exports = class LevelBus extends Bus
     @changedSessionProperties.state = true
     @saveSession()
 
+  onNewGoalStates: ({goalStates})->
+    state = @session.get 'state'
+    unless utils.kindaEqual state.goalStates, goalStates # Only save when goals really change
+      state.goalStates = goalStates
+      @session.set 'state', state
+      @changedSessionProperties.state = true
+      @saveSession()
+
   onPlayerJoined: (snapshot) =>
     super(arguments...)
     return unless @onPoint()

app/lib/utils.coffee

@@ -118,3 +118,15 @@ module.exports.grayscale = (imageData) ->
     v = 0.2126*r + 0.7152*g + 0.0722*b
     d[i] = d[i+1] = d[i+2] = v
   imageData
+
+# Deep compares l with r, with the exception that undefined values are considered equal to missing values
+# Very practical for comparing Mongoose documents where undefined is not allowed, instead fields get deleted
+module.exports.kindaEqual = compare = (l, r) ->
+  if _.isObject(l) and _.isObject(r)
+    for key in _.union Object.keys(l), Object.keys(r)
+      return false unless compare l[key], r[key]
+    return true
+  else if l is r
+    return true
+  else
+    return false

app/schemas/models/level_session.coffee

@@ -97,6 +97,14 @@ _.extend LevelSessionSchema.properties,
                   type: 'object'
                 source:
                   type: 'string'
+    goalStates:
+      type: 'object'
+      description: 'Maps Goal ID on a goal state object'
+      additionalProperties:
+        title: 'Goal State'
+        type: 'object'
+        properties:
+          status: enum: ['failure', 'incomplete', 'success']
 
   code:
     type: 'object'