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90 lines
4.1 KiB
CoffeeScript
90 lines
4.1 KiB
CoffeeScript
mongoose = require 'mongoose'
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EarnedAchievement = require '../achievements/EarnedAchievement'
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LocalMongo = require '../../app/lib/LocalMongo'
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util = require '../../app/lib/utils'
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log = require 'winston'
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# Warning: To ensure proper functioning one must always `find` documents before saving them.
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# Otherwise the schema's `post init` won't be triggered and the plugin can't keep track of changes
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# TODO if this is still a common scenario I could implement a database hit after all, but only
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# on the condition that it's necessary and still not too frequent in occurrence
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AchievablePlugin = (schema, options) ->
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User = require '../users/User' # Avoid mutual inclusion cycles
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Achievement = require '../achievements/Achievement'
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before = {}
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# Keep track the document before it's saved
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schema.post 'init', (doc) ->
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before[doc.id] = doc.toObject()
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# TODO check out how many objects go unreleased
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# Check if an achievement has been earned
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schema.post 'save', (doc) ->
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isNew = not doc.isInit('_id') or not (doc.id of before)
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originalDocObj = before[doc.id] unless isNew
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if doc.isInit('_id') and not doc.id of before
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log.warn 'document was already initialized but did not go through `init` and is therefore treated as new while it might not be'
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category = doc.constructor.collection.name
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loadedAchievements = Achievement.getLoadedAchievements()
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#log.debug 'about to save ' + category + ', number of achievements is ' + Object.keys(loadedAchievements).length
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if category of loadedAchievements
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docObj = doc.toObject()
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for achievement in loadedAchievements[category]
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query = achievement.get('query')
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isRepeatable = achievement.get('proportionalTo')?
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alreadyAchieved = if isNew then false else LocalMongo.matchesQuery originalDocObj, query
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newlyAchieved = LocalMongo.matchesQuery(docObj, query)
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#log.debug 'isRepeatable: ' + isRepeatable
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#log.debug 'alreadyAchieved: ' + alreadyAchieved
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#log.debug 'newlyAchieved: ' + newlyAchieved
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userObjectID = doc.get(achievement.get('userField'))
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userID = if _.isObject userObjectID then userObjectID.toHexString() else userObjectID # Standardize! Use strings, not ObjectId's
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if newlyAchieved and (not alreadyAchieved or isRepeatable)
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earned =
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user: userID
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achievement: achievement._id.toHexString()
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achievementName: achievement.get 'name'
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worth = achievement.get('worth') ? 10
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earnedPoints = 0
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wrapUp = ->
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# Update user's experience points
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User.update {_id: userID}, {$inc: {points: earnedPoints}}, {}, (err, count) ->
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log.error err if err?
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if isRepeatable
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#log.debug 'Upserting repeatable achievement called \'' + (achievement.get 'name') + '\' for ' + userID
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proportionalTo = achievement.get 'proportionalTo'
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originalAmount = if originalDocObj then util.getByPath(originalDocObj, proportionalTo) or 0 else 0
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newAmount = docObj[proportionalTo]
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if originalAmount isnt newAmount
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expFunction = achievement.getExpFunction()
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earned.notified = false
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earned.achievedAmount = newAmount
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earned.earnedPoints = (expFunction(newAmount) - expFunction(originalAmount)) * worth
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earned.previouslyAchievedAmount = originalAmount
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EarnedAchievement.update {achievement: earned.achievement, user: earned.user}, earned, {upsert: true}, (err) ->
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return log.debug err if err?
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earnedPoints = earned.earnedPoints
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#log.debug earnedPoints
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wrapUp()
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else # not alreadyAchieved
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#log.debug 'Creating a new earned achievement called \'' + (achievement.get 'name') + '\' for ' + userID
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earned.earnedPoints = worth
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(new EarnedAchievement(earned)).save (err, doc) ->
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return log.error err if err?
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earnedPoints = worth
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wrapUp()
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delete before[doc.id] if doc.id of before
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module.exports = AchievablePlugin
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