Pod model refractoring -> use mongoose api

2 files changed, 71 insertions, 79 deletions

diff --git a/server/models/pods.js b/server/models/pods.js
index 9502d92e4..bf43d7b25 100644
--- a/server/models/pods.js
+++ b/server/models/pods.js
@@ -2,107 +2,89 @@
 
 const mongoose = require('mongoose')
 const map = require('lodash/map')
+const validator = require('express-validator').validator
 
 const constants = require('../initializers/constants')
-const logger = require('../helpers/logger')
 
 // ---------------------------------------------------------------------------
 
-const podsSchema = mongoose.Schema({
+const PodSchema = mongoose.Schema({
   url: String,
   publicKey: String,
-  score: { type: Number, max: constants.FRIEND_BASE_SCORE }
+  score: { type: Number, max: constants.FRIEND_SCORE.MAX }
 })
-const PodsDB = mongoose.model('pods', podsSchema)
 
-// ---------------------------------------------------------------------------
+// TODO: set options (TLD...)
+PodSchema.path('url').validate(validator.isURL)
+PodSchema.path('publicKey').required(true)
+PodSchema.path('score').validate(function (value) { return !isNaN(value) })
 
-const Pods = {
-  add: add,
-  count: count,
-  findById: findById,
-  findByUrl: findByUrl,
-  findBadPods: findBadPods,
+PodSchema.statics = {
+  countAll: countAll,
   incrementScores: incrementScores,
   list: list,
   listAllIds: listAllIds,
-  listAllUrls: listAllUrls,
-  remove: remove,
-  removeAll: removeAll,
-  removeAllByIds: removeAllByIds
+  listOnlyUrls: listOnlyUrls,
+  listBadPods: listBadPods,
+  load: load,
+  loadByUrl: loadByUrl,
+  removeAll: removeAll
 }
 
-// TODO: check if the pod is not already a friend
-function add (data, callback) {
-  if (!callback) callback = function () {}
-  const params = {
-    url: data.url,
-    publicKey: data.publicKey,
-    score: constants.FRIEND_BASE_SCORE
-  }
+PodSchema.pre('save', function (next) {
+  const self = this
 
-  PodsDB.create(params, callback)
-}
+  Pod.loadByUrl(this.url, function (err, pod) {
+    if (err) return next(err)
 
-function count (callback) {
-  return PodsDB.count(callback)
-}
+    if (pod) return next(new Error('Pod already exists.'))
 
-function findBadPods (callback) {
-  PodsDB.find({ score: 0 }, callback)
-}
+    self.score = constants.FRIEND_SCORE.BASE
+    return next()
+  })
+})
 
-function findById (id, callback) {
-  PodsDB.findById(id, callback)
-}
+const Pod = mongoose.model('Pod', PodSchema)
 
-function findByUrl (url, callback) {
-  PodsDB.findOne({ url: url }, callback)
+// ------------------------------ Statics ------------------------------
+
+function countAll (callback) {
+  return this.count(callback)
 }
 
 function incrementScores (ids, value, callback) {
   if (!callback) callback = function () {}
-  PodsDB.update({ _id: { $in: ids } }, { $inc: { score: value } }, { multi: true }, callback)
+  return this.update({ _id: { $in: ids } }, { $inc: { score: value } }, { multi: true }, callback)
 }
 
 function list (callback) {
-  PodsDB.find(function (err, podsList) {
-    if (err) {
-      logger.error('Cannot get the list of the pods.')
-      return callback(err)
-    }
-
-    return callback(null, podsList)
-  })
+  return this.find(callback)
 }
 
 function listAllIds (callback) {
-  return PodsDB.find({}, { _id: 1 }, function (err, pods) {
+  return this.find({}, { _id: 1 }, function (err, pods) {
     if (err) return callback(err)
 
     return callback(null, map(pods, '_id'))
   })
 }
 
-function listAllUrls (callback) {
-  return PodsDB.find({}, { _id: 0, url: 1 }, callback)
+function listOnlyUrls (callback) {
+  return this.find({}, { _id: 0, url: 1 }, callback)
 }
 
-function remove (url, callback) {
-  if (!callback) callback = function () {}
-  PodsDB.remove({ url: url }, callback)
+function listBadPods (callback) {
+  return this.find({ score: 0 }, callback)
 }
 
-function removeAll (callback) {
-  if (!callback) callback = function () {}
-  PodsDB.remove(callback)
+function load (id, callback) {
+  return this.findById(id, callback)
 }
 
-function removeAllByIds (ids, callback) {
-  if (!callback) callback = function () {}
-  PodsDB.remove({ _id: { $in: ids } }, callback)
+function loadByUrl (url, callback) {
+  return this.findOne({ url: url }, callback)
 }
 
-// ---------------------------------------------------------------------------
-
-module.exports = Pods
+function removeAll (callback) {
+  return this.remove({}, callback)
+}
diff --git a/server/models/request.js b/server/models/request.js
index 2a407388a..db6ad5409 100644
--- a/server/models/request.js
+++ b/server/models/request.js
@@ -6,9 +6,9 @@ const mongoose = require('mongoose')
 
 const constants = require('../initializers/constants')
 const logger = require('../helpers/logger')
-const Pods = require('../models/pods')
 const requests = require('../helpers/requests')
 
+const Pod = mongoose.model('Pod')
 const Video = mongoose.model('Video')
 
 let timer = null
@@ -31,7 +31,7 @@ RequestSchema.pre('save', function (next) {
   const self = this
 
   if (self.to.length === 0) {
-    Pods.listAllIds(function (err, podIds) {
+    Pod.listAllIds(function (err, podIds) {
       if (err) return next(err)
 
       // No friends
@@ -140,7 +140,7 @@ function makeRequests () {
       const requestToMake = requestsToMake[toPodId]
 
       // FIXME: mongodb request inside a loop :/
-      Pods.findById(toPodId, function (err, toPod) {
+      Pod.load(toPodId, function (err, toPod) {
         if (err) {
           logger.error('Error finding pod by id.', { err: err })
           return callbackEach()
@@ -185,7 +185,7 @@ function makeRequests () {
 function removeBadPods () {
   async.waterfall([
     function findBadPods (callback) {
-      Pods.findBadPods(function (err, pods) {
+      Pod.listBadPods(function (err, pods) {
         if (err) {
           logger.error('Cannot find bad pods.', { error: err })
           return callback(err)
@@ -199,21 +199,23 @@ function removeBadPods () {
       if (pods.length === 0) return callback(null)
 
       const urls = map(pods, 'url')
-      const ids = map(pods, '_id')
 
       Video.listByUrls(urls, function (err, videosList) {
         if (err) {
           logger.error('Cannot list videos urls.', { error: err, urls: urls })
-          return callback(null, ids, [])
+          return callback(null, pods, [])
         }
 
-        return callback(null, ids, videosList)
+        return callback(null, pods, videosList)
       })
     },
 
-    function removeVideosOfTheseBadPods (podIds, videosList, callback) {
+    function removeVideosOfTheseBadPods (pods, videosList, callback) {
       // We don't have to remove pods, skip
-      if (typeof podIds === 'function') return podIds(null)
+      if (typeof pods === 'function') {
+        callback = pods
+        return callback(null)
+      }
 
       async.each(videosList, function (video, callbackEach) {
         video.remove(callbackEach)
@@ -224,22 +226,30 @@ function removeBadPods () {
           return
         }
 
-        return callback(null, podIds)
+        return callback(null, pods)
       })
     },
 
-    function removeBadPodsFromDB (podIds, callback) {
+    function removeBadPodsFromDB (pods, callback) {
       // We don't have to remove pods, skip
-      if (typeof podIds === 'function') return podIds(null)
+      if (typeof pods === 'function') {
+        callback = pods
+        return callback(null)
+      }
+
+      async.each(pods, function (pod, callbackEach) {
+        pod.remove(callbackEach)
+      }, function (err) {
+        if (err) return callback(err)
 
-      Pods.removeAllByIds(podIds, callback)
+        return callback(null, pods.length)
+      })
     }
-  ], function (err, removeResult) {
+  ], function (err, numberOfPodsRemoved) {
     if (err) {
       logger.error('Cannot remove bad pods.', { error: err })
-    } else if (removeResult) {
-      const podsRemoved = removeResult.result.n
-      logger.info('Removed %d pods.', podsRemoved)
+    } else if (numberOfPodsRemoved) {
+      logger.info('Removed %d pods.', numberOfPodsRemoved)
     } else {
       logger.info('No need to remove bad pods.')
     }
@@ -249,11 +259,11 @@ function removeBadPods () {
 function updatePodsScore (goodPods, badPods) {
   logger.info('Updating %d good pods and %d bad pods scores.', goodPods.length, badPods.length)
 
-  Pods.incrementScores(goodPods, constants.PODS_SCORE.BONUS, function (err) {
+  Pod.incrementScores(goodPods, constants.PODS_SCORE.BONUS, function (err) {
     if (err) logger.error('Cannot increment scores of good pods.')
   })
 
-  Pods.incrementScores(badPods, constants.PODS_SCORE.MALUS, function (err) {
+  Pod.incrementScores(badPods, constants.PODS_SCORE.MALUS, function (err) {
     if (err) logger.error('Cannot decrement scores of bad pods.')
     removeBadPods()
   })