codecombat/server/plugins/achievements.coffee

47 lines
2.3 KiB
CoffeeScript

mongoose = require 'mongoose'
EarnedAchievement = require '../models/EarnedAchievement'
LocalMongo = require '../../app/lib/LocalMongo'
util = require '../../app/core/utils'
log = require 'winston'
# Warning: To ensure proper functioning one must always `find` documents before saving them.
# Otherwise the schema's `post init` won't be triggered and the plugin can't keep track of changes
# TODO if this is still a common scenario I could implement a database hit after all, but only
# on the condition that it's necessary and still not too frequent in occurrence
AchievablePlugin = (schema, options) ->
User = require '../models/User' # Avoid mutual inclusion cycles
Achievement = require '../models/Achievement'
# Keep track the document before it's saved
schema.post 'init', (doc) ->
unless doc.unchangedCopy
doc.unchangedCopy = doc.toObject()
# Check if an achievement has been earned
schema.post 'save', (doc) ->
schema.statics.createNewEarnedAchievements doc
schema.statics.createNewEarnedAchievements = (doc, unchangedCopy) ->
unchangedCopy ?= doc.unchangedCopy
isNew = not doc.isInit('_id') or not unchangedCopy
if doc.isInit('_id') and not unchangedCopy
log.warn 'document was already initialized but did not go through `init` and is therefore treated as new while it might not be'
category = doc.constructor.collection.name
loadedAchievements = Achievement.getLoadedAchievements()
if category of loadedAchievements
#log.debug 'about to save ' + category + ', number of achievements is ' + loadedAchievements[category].length
docObj = doc.toObject()
for achievement in loadedAchievements[category]
do (achievement) ->
query = achievement.get('query')
return log.error("Empty achievement query for #{achievement.get('name')}.") if _.isEmpty query
isRepeatable = achievement.get('proportionalTo')?
alreadyAchieved = if isNew then false else LocalMongo.matchesQuery unchangedCopy, query
newlyAchieved = LocalMongo.matchesQuery(docObj, query)
return unless newlyAchieved and (not alreadyAchieved or isRepeatable)
EarnedAchievement.createForAchievement(achievement, doc, {originalDocObj: unchangedCopy})
module.exports = AchievablePlugin