diff --git a/app/assets/javascripts/app/frontend/controllers/editor.js b/app/assets/javascripts/app/frontend/controllers/editor.js
index 8ffe14a7e..9c6b0accc 100644
--- a/app/assets/javascripts/app/frontend/controllers/editor.js
+++ b/app/assets/javascripts/app/frontend/controllers/editor.js
@@ -63,12 +63,12 @@ angular.module('app.frontend')
       }
     }
   })
-  .controller('EditorCtrl', function ($sce, $timeout, apiController, modelManager, markdownRenderer, $rootScope) {
+  .controller('EditorCtrl', function ($sce, $timeout, apiController, markdownRenderer, $rootScope) {
 
     this.setNote = function(note, oldNote) {
       this.editorMode = 'edit';
 
-      if(note.content.text.length == 0 && note.dummy) {
+      if(note.safeText().length == 0 && note.dummy) {
         this.focusTitle(100);
       }
 
@@ -104,7 +104,7 @@ angular.module('app.frontend')
     }
 
     this.renderedContent = function() {
-      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.content.text));
+      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.safeText()));
     }
 
     var statusTimeout;
@@ -207,7 +207,7 @@ angular.module('app.frontend')
 
       var original = this.note.presentation_name;
       this.note.presentation_name = this.url.token;
-      modelManager.addDirtyItems([this.note]);
+      this.note.dirty = true;
 
       apiController.sync(function(response){
         if(!response) {
diff --git a/app/assets/javascripts/app/frontend/controllers/home.js b/app/assets/javascripts/app/frontend/controllers/home.js
index 912cc47f9..aa226bd12 100644
--- a/app/assets/javascripts/app/frontend/controllers/home.js
+++ b/app/assets/javascripts/app/frontend/controllers/home.js
@@ -5,7 +5,7 @@ angular.module('app.frontend')
     var onUserSet = function() {
       apiController.setUser($scope.defaultUser);
       $scope.allTag = new Tag({all: true});
-      $scope.allTag.content.title = "All";
+      $scope.allTag.title = "All";
       $scope.tags = modelManager.tags;
       $scope.allTag.notes = modelManager.notes;
 
@@ -43,14 +43,18 @@ angular.module('app.frontend')
 
     $scope.tagsSelectionMade = function(tag) {
       $scope.selectedTag = tag;
+
+      if($scope.selectedNote && $scope.selectedNote.dummy) {
+        modelManager.removeItemLocally($scope.selectedNote);
+      }
     }
 
     $scope.tagsAddNew = function(tag) {
-      modelManager.addTag(tag);
+      modelManager.addItem(tag);
     }
 
     $scope.tagsSave = function(tag, callback) {
-      modelManager.addDirtyItems([tag]);
+      tag.dirty = true;
       apiController.sync(callback);
     }
 
@@ -62,7 +66,7 @@ angular.module('app.frontend')
 
       var originalNote = _.find(modelManager.notes, {uuid: noteCopy.uuid});
       if(!newTag.all) {
-        modelManager.addTagToNote(newTag, originalNote);
+        modelManager.createRelationshipBetweenItems(newTag, originalNote);
       }
 
       apiController.sync(function(){});
@@ -75,9 +79,9 @@ angular.module('app.frontend')
     $scope.notesRemoveTag = function(tag) {
       var validNotes = Note.filterDummyNotes(tag.notes);
       if(validNotes == 0) {
-        modelManager.deleteTag(tag);
+        modelManager.setItemToBeDeleted(tag);
         // if no more notes, delete tag
-        apiController.deleteItem(tag, function(){
+        apiController.sync(function(){
           // force scope tags to update on sub directives
           $scope.tags = [];
           $timeout(function(){
@@ -94,10 +98,10 @@ angular.module('app.frontend')
     }
 
     $scope.notesAddNew = function(note) {
-      modelManager.addNote(note);
+      modelManager.addItem(note);
 
       if(!$scope.selectedTag.all) {
-        modelManager.addTagToNote($scope.selectedTag, note);
+        modelManager.createRelationshipBetweenItems($scope.selectedTag, note);
         $scope.updateAllTag();
       }
     }
@@ -107,7 +111,7 @@ angular.module('app.frontend')
     */
 
     $scope.saveNote = function(note, callback) {
-      modelManager.addDirtyItems(note);
+      note.dirty = true;
 
       apiController.sync(function(){
         note.hasChanges = false;
@@ -120,17 +124,18 @@ angular.module('app.frontend')
 
     $scope.deleteNote = function(note) {
 
-      modelManager.deleteNote(note);
+      modelManager.setItemToBeDeleted(note);
 
       if(note == $scope.selectedNote) {
         $scope.selectedNote = null;
       }
 
       if(note.dummy) {
+        modelManager.removeItemLocally(note);
         return;
       }
 
-      apiController.deleteItem(note, function(success){})
+      apiController.sync(null);
     }
 
     /*
diff --git a/app/assets/javascripts/app/frontend/controllers/notes.js b/app/assets/javascripts/app/frontend/controllers/notes.js
index fcd8856a2..fd47d8efa 100644
--- a/app/assets/javascripts/app/frontend/controllers/notes.js
+++ b/app/assets/javascripts/app/frontend/controllers/notes.js
@@ -110,8 +110,8 @@ angular.module('app.frontend')
 
     this.createNewNote = function() {
       var title = "New Note" + (this.tag.notes ? (" " + (this.tag.notes.length + 1)) : "");
-      this.newNote = new Note({dummy: true});
-      this.newNote.content.title = title;
+      this.newNote = new Note({dummy: true, text: ""});
+      this.newNote.title = title;
       this.selectNote(this.newNote);
       this.addNew()(this.newNote);
     }
@@ -122,7 +122,7 @@ angular.module('app.frontend')
       if(this.noteFilter.text.length == 0) {
         note.visible = true;
       } else {
-        note.visible = note.content.title.toLowerCase().includes(this.noteFilter.text) || note.content.text.toLowerCase().includes(this.noteFilter.text);
+        note.visible = note.title.toLowerCase().includes(this.noteFilter.text) || note.text.toLowerCase().includes(this.noteFilter.text);
       }
       return note.visible;
     }.bind(this)
diff --git a/app/assets/javascripts/app/frontend/controllers/tags.js b/app/assets/javascripts/app/frontend/controllers/tags.js
index a7d66df62..a7f3cc3c7 100644
--- a/app/assets/javascripts/app/frontend/controllers/tags.js
+++ b/app/assets/javascripts/app/frontend/controllers/tags.js
@@ -62,8 +62,8 @@ angular.module('app.frontend')
       if(this.editingTag) {
         return;
       }
-      
-      this.newTag = new Tag();
+
+      this.newTag = new Tag({});
       this.selectedTag = this.newTag;
       this.editingTag = this.newTag;
       this.addNew()(this.newTag);
@@ -71,7 +71,7 @@ angular.module('app.frontend')
 
     var originalTagName = "";
     this.onTagTitleFocus = function(tag) {
-      originalTagName = tag.content.title;
+      originalTagName = tag.title;
     }
 
     this.tagTitleDidChange = function(tag) {
@@ -80,14 +80,14 @@ angular.module('app.frontend')
 
     this.saveTag = function($event, tag) {
       this.editingTag = null;
-      if(tag.content.title.length == 0) {
-        tag.content.title = originalTagName;
+      if(tag.title.length == 0) {
+        tag.title = originalTagName;
         originalTagName = "";
         return;
       }
 
       $event.target.blur();
-      if(!tag.content.title || tag.content.title.length == 0) {
+      if(!tag.title || tag.title.length == 0) {
           return;
       }
 
diff --git a/app/assets/javascripts/app/frontend/models/api/item.js b/app/assets/javascripts/app/frontend/models/api/item.js
index dcb8138f2..6e1cc4a9b 100644
--- a/app/assets/javascripts/app/frontend/models/api/item.js
+++ b/app/assets/javascripts/app/frontend/models/api/item.js
@@ -1,54 +1,12 @@
 class Item {
+
   constructor(json_obj) {
 
-    var content;
-
-    Object.defineProperty(this, "content", {
-      get: function() {
-        return content;
-      },
-      set: function(value) {
-        var finalValue = value;
-
-        if(typeof value === 'string') {
-          try {
-            var decodedValue = JSON.parse(value);
-            finalValue = decodedValue;
-          }
-          catch(e) {
-            finalValue = value;
-          }
-        }
-        content = finalValue;
-      },
-      enumerable: true,
-    });
-
-    _.merge(this, json_obj);
-
-    if(this.created_at) {
-      this.created_at = new Date(this.created_at);
-      this.updated_at = new Date(this.updated_at);
-    } else {
-      this.created_at = new Date();
-      this.updated_at = new Date();
-    }
+    this.updateFromJSON(json_obj);
 
     if(!this.uuid) {
       this.uuid = Neeto.crypto.generateUUID();
     }
-
-    this.setContentRaw = function(rawContent) {
-      content = rawContent;
-    }
-
-    if(!this.content) {
-      this.content = {};
-    }
-
-    if(!this.content.references) {
-      this.content.references = [];
-    }
   }
 
   static sortItemsByDate(items) {
@@ -57,31 +15,67 @@ class Item {
     });
   }
 
-  addReference(reference) {
-    this.content.references.push(reference);
-    this.content.references = _.uniq(this.content.references);
-    this.updateReferencesLocalMapping();
+  get contentObject() {
+    // console.log("getting content object from content", this.content);
+    if(!this.content) {
+      return {};
+    }
+
+    if(this.content !== null && typeof this.content === 'object') {
+      // this is the case when mapping localStorage content, in which case the content is already parsed
+      return this.content;
+    }
+
+    return JSON.parse(this.content);
   }
 
-  removeReference(reference) {
-    _.remove(this.content.references, _.find(this.content.references, {uuid: reference.uuid}));
-    this.updateReferencesLocalMapping();
+  updateFromJSON(json) {
+    _.merge(this, json);
+    if(this.created_at) {
+      this.created_at = new Date(this.created_at);
+      this.updated_at = new Date(this.updated_at);
+    } else {
+      this.created_at = new Date();
+      this.updated_at = new Date();
+    }
+
+    if(json.content) {
+      this.mapContentToLocalProperties(this.contentObject);
+    }
   }
 
-  referencesMatchingContentType(contentType) {
-    return this.content.references.filter(function(reference){
-      return reference.content_type == contentType;
-    });
+  mapContentToLocalProperties(contentObj) {
+
+  }
+
+  createContentJSONFromProperties() {
+    return this.structureParams();
+  }
+
+  referenceParams() {
+    // must override
+  }
+
+  structureParams() {
+    return {references: this.referenceParams()}
+  }
+
+  addItemAsRelationship(item) {
+    // must override
+  }
+
+  removeItemAsRelationship(item) {
+    // must override
+  }
+
+  removeFromRelationships() {
+    // must override
   }
 
   mergeMetadataFromItem(item) {
     _.merge(this, _.omit(item, ["content"]));
   }
 
-  updateReferencesLocalMapping() {
-    // should be overriden to manage local properties
-  }
-
   referencesAffectedBySharingChange() {
     // should be overriden to determine which references should be decrypted/encrypted
     return null;
@@ -92,7 +86,7 @@ class Item {
   }
 
   isEncrypted() {
-    return this.encryptionEnabled() && typeof this.content === 'string' ? true : false;
+    return this.encryptionEnabled() && this.content.substring(0, 3) === '001' ? true : false;
   }
 
   encryptionEnabled() {
diff --git a/app/assets/javascripts/app/frontend/models/app/extension.js b/app/assets/javascripts/app/frontend/models/app/extension.js
index 282f87953..d98817151 100644
--- a/app/assets/javascripts/app/frontend/models/app/extension.js
+++ b/app/assets/javascripts/app/frontend/models/app/extension.js
@@ -1,5 +1,6 @@
 class Extension extends Item {
   constructor(json) {
+      super(json);
       _.merge(this, json);
 
       this.actions = this.actions.map(function(action){
diff --git a/app/assets/javascripts/app/frontend/models/app/note.js b/app/assets/javascripts/app/frontend/models/app/note.js
index 2aa891b26..3b444fe75 100644
--- a/app/assets/javascripts/app/frontend/models/app/note.js
+++ b/app/assets/javascripts/app/frontend/models/app/note.js
@@ -6,14 +6,52 @@ class Note extends Item {
     if(!this.tags) {
       this.tags = [];
     }
+  }
 
-    if(!this.content.title) {
-      this.content.title = "";
-    }
+  mapContentToLocalProperties(contentObject) {
+    super.mapContentToLocalProperties(contentObject)
+    this.title = contentObject.title;
+    this.text = contentObject.text;
+  }
 
-    if(!this.content.text) {
-      this.content.text = "";
+  referenceParams() {
+    var references = _.map(this.tags, function(tag){
+      return {uuid: tag.uuid, content_type: tag.content_type};
+    })
+    return references;
+  }
+
+  structureParams() {
+    var params = {
+      title: this.title,
+      text: this.text
+    };
+
+    _.merge(params, super.structureParams());
+    return params;
+  }
+
+  addItemAsRelationship(item) {
+    if(item.content_type == "Tag") {
+      if(!_.find(this.tags, item)) {
+        this.tags.push(item);
+      }
     }
+    super.addItemAsRelationship(item);
+  }
+
+  removeItemAsRelationship(item) {
+    if(item.content_type == "Tag") {
+      _.pull(this.tags, item);
+    }
+    super.removeItemAsRelationship(item);
+  }
+
+  removeFromRelationships() {
+    this.tags.forEach(function(tag){
+      _.pull(tag.notes, this);
+      tag.dirty = true;
+    })
   }
 
   static filterDummyNotes(notes) {
@@ -21,11 +59,6 @@ class Note extends Item {
     return filtered;
   }
 
-  updateReferencesLocalMapping() {
-    super.updateReferencesLocalMapping();
-    this.tags = this.referencesMatchingContentType("Tag");
-  }
-
   referencesAffectedBySharingChange() {
     return super.referencesAffectedBySharingChange();
   }
@@ -39,6 +72,14 @@ class Note extends Item {
     return false;
   }
 
+  safeText() {
+    return this.text || "";
+  }
+
+  safeTitle() {
+    return this.title || "";
+  }
+
   toJSON() {
     return {uuid: this.uuid}
   }
diff --git a/app/assets/javascripts/app/frontend/models/app/tag.js b/app/assets/javascripts/app/frontend/models/app/tag.js
index 31c20745f..7bd4f74c4 100644
--- a/app/assets/javascripts/app/frontend/models/app/tag.js
+++ b/app/assets/javascripts/app/frontend/models/app/tag.js
@@ -6,22 +6,57 @@ class Tag extends Item {
     if(!this.notes) {
       this.notes = [];
     }
+  }
 
-    if(!this.content.title) {
-      this.content.title = "";
+  mapContentToLocalProperties(contentObject) {
+    super.mapContentToLocalProperties(contentObject)
+    this.title = contentObject.title;
+  }
+
+  referenceParams() {
+    var references = _.map(this.notes, function(note){
+      return {uuid: note.uuid, content_type: note.content_type};
+    })
+    return references;
+  }
+
+  structureParams() {
+    var params = {
+      title: this.title
+    };
+
+    _.merge(params, super.structureParams());
+    return params;
+  }
+
+  addItemAsRelationship(item) {
+    if(item.content_type == "Note") {
+      if(!_.find(this.notes, item)) {
+        this.notes.unshift(item);
+      }
     }
+    super.addItemAsRelationship(item);
+  }
+
+  removeItemAsRelationship(item) {
+    if(item.content_type == "Note") {
+      _.pull(this.notes, item);
+    }
+    super.removeItemAsRelationship(item);
+  }
+
+  removeFromRelationships() {
+    this.notes.forEach(function(note){
+      _.pull(note.tags, this);
+      note.dirty = true;
+    })
   }
 
   get content_type() {
     return "Tag";
   }
 
-  updateReferencesLocalMapping() {
-    super.updateReferencesLocalMapping();
-    this.notes = this.referencesMatchingContentType("Note");
-  }
-
   referencesAffectedBySharingChange() {
-    return this.referencesMatchingContentType("Note");
+    return this.notes;
   }
 }
diff --git a/app/assets/javascripts/app/services/apiController.js b/app/assets/javascripts/app/services/apiController.js
index e2d822db1..3c0db048a 100644
--- a/app/assets/javascripts/app/services/apiController.js
+++ b/app/assets/javascripts/app/services/apiController.js
@@ -218,20 +218,24 @@ angular.module('app.frontend')
 
       this.syncWithOptions = function(callback, options = {}) {
         if(!this.user.uuid) {
-          this.writeItemsToLocalStorage();
-          modelManager.clearDirtyItems();
-          if(callback) {
-            callback();
-          }
+          this.writeItemsToLocalStorage(function(responseItems){
+            this.handleItemsResponse(responseItems);
+            modelManager.clearDirtyItems();
+            if(callback) {
+              callback();
+            }
+          }.bind(this))
           return;
         }
 
-        var dirtyItems = modelManager.dirtyItems;
+        var dirtyItems = modelManager.getDirtyItems();
         var request = Restangular.one("items/sync");
         request.items = _.map(dirtyItems, function(item){
           return this.createRequestParamsForItem(item, options.additionalFields);
         }.bind(this));
 
+        console.log("syncing items", request.items);
+
         if(this.syncToken) {
           request.sync_token = this.syncToken;
         }
@@ -272,11 +276,10 @@ angular.module('app.frontend')
       this.paramsForItem = function(item, encrypted, additionalFields, forExportFile) {
         var itemCopy = _.cloneDeep(item);
 
-        var params = {uuid: item.uuid, content_type: item.content_type, presentation_name: item.presentation_name, deleted: item.deleted};
+        console.assert(!item.dummy, "Item is dummy, should not have gotten here.", item.dummy)
 
-        itemCopy.content.references = _.map(itemCopy.content.references, function(reference){
-          return {uuid: reference.uuid, content_type: reference.content_type};
-        })
+        var params = {uuid: item.uuid, content_type: item.content_type,
+          presentation_name: item.presentation_name, deleted: item.deleted};
 
         if(encrypted) {
           this.encryptSingleItem(itemCopy, this.retrieveMk());
@@ -285,7 +288,7 @@ angular.module('app.frontend')
           params.auth_hash = itemCopy.auth_hash;
         }
         else {
-          params.content = forExportFile ? itemCopy.content : "000" + Neeto.crypto.base64(JSON.stringify(itemCopy.content));
+          params.content = forExportFile ? itemCopy.content : "000" + Neeto.crypto.base64(JSON.stringify(itemCopy.createContentJSONFromProperties()));
           if(!forExportFile) {
             params.enc_item_key = null;
             params.auth_hash = null;
@@ -299,13 +302,6 @@ angular.module('app.frontend')
         return params;
       }
 
-
-      this.deleteItem = function(item, callback) {
-        item.deleted = true;
-        modelManager.addDirtyItems([item]);
-        this.sync(callback);
-      }
-
       this.shareItem = function(item, callback) {
         if(!this.user.uuid) {
           alert("You must be signed in to share.");
@@ -315,7 +311,9 @@ angular.module('app.frontend')
         var shareFn = function() {
           item.presentation_name = "_auto_";
           var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);
-          modelManager.addDirtyItems(needsUpdate);
+          needsUpdate.forEach(function(needingUpdate){
+            needingUpdate.dirty = true;
+          })
           this.sync();
         }.bind(this)
 
@@ -340,7 +338,9 @@ angular.module('app.frontend')
       this.unshareItem = function(item, callback) {
         item.presentation_name = null;
         var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);
-        modelManager.addDirtyItems(needsUpdate);
+        needsUpdate.forEach(function(needingUpdate){
+          needingUpdate.dirty = true;
+        })
         this.sync(null);
       }
 
@@ -351,7 +351,9 @@ angular.module('app.frontend')
       this.importJSONData = function(jsonString, callback) {
         var data = JSON.parse(jsonString);
         modelManager.mapResponseItemsToLocalModels(data.items);
-        modelManager.addDirtyItems(modelManager.items);
+        modelManager.items.forEach(function(item){
+          item.dirty = true;
+        })
         this.syncWithOptions(callback, {additionalFields: ["created_at", "updated_at"]});
       }
 
@@ -399,7 +401,7 @@ angular.module('app.frontend')
         request.items.forEach(function(item){
           if(item.tag_id) {
             var tag = tags.filter(function(tag){return tag.uuid == item.tag_id})[0];
-            item.tag_name = tag.content.title;
+            item.tag_name = tag.title;
           }
         })
         request.post().then(function(response){
@@ -417,11 +419,13 @@ angular.module('app.frontend')
         return JSON.parse(JSON.stringify(object));
       }
 
-      this.writeItemsToLocalStorage = function() {
+      this.writeItemsToLocalStorage = function(callback) {
         var items = _.map(modelManager.items, function(item){
-          return this.paramsForItem(item, false, ["created_at", "updated_at"], true)
+          return this.paramsForItem(item, false, ["created_at", "updated_at"], false)
         }.bind(this));
+        console.log("writing items to local", items);
         this.writeToLocalStorage('items', items);
+        callback(items);
       }
 
       this.writeToLocalStorage = function(key, value) {
@@ -431,7 +435,7 @@ angular.module('app.frontend')
       this.loadLocalItemsAndUser = function() {
         var user = {};
         var items = JSON.parse(localStorage.getItem('items')) || [];
-        items = modelManager.mapResponseItemsToLocalModels(items);
+        items = this.handleItemsResponse(items);
         Item.sortItemsByDate(items);
         user.items = items;
         user.shouldMerge = true;
@@ -490,7 +494,7 @@ angular.module('app.frontend')
 
         var ek = Neeto.crypto.firstHalfOfKey(item_key);
         var ak = Neeto.crypto.secondHalfOfKey(item_key);
-        var encryptedContent = "001" + Neeto.crypto.encryptText(JSON.stringify(item.content), ek);
+        var encryptedContent = "001" + Neeto.crypto.encryptText(JSON.stringify(item.createContentJSONFromProperties()), ek);
         var authHash = Neeto.crypto.hmac256(encryptedContent, ak);
 
         item.content = encryptedContent;
diff --git a/app/assets/javascripts/app/services/itemManager.js b/app/assets/javascripts/app/services/itemManager.js
index 89977ba08..e69de29bb 100644
--- a/app/assets/javascripts/app/services/itemManager.js
+++ b/app/assets/javascripts/app/services/itemManager.js
@@ -1,112 +0,0 @@
-class ItemManager {
-
-  constructor() {
-    this._items = [];
-  }
-
-  get items() {
-    return this._items;
-  }
-
-  findItem(itemId) {
-    return _.find(this.items, {uuid: itemId});
-  }
-
-  addItems(items) {
-    this._items = _.uniq(this.items.concat(items));
-  }
-
-  mapResponseItemsToLocalModels(items) {
-    return this.mapResponseItemsToLocalModelsOmittingFields(items, null)
-  }
-
-  mapResponseItemsToLocalModelsOmittingFields(items, omitFields) {
-    var models = []
-    for (var json_obj of items) {
-      json_obj = _.omit(json_obj, omitFields || [])
-      var item = this.findItem(json_obj["uuid"]);
-      if(json_obj["deleted"] == true) {
-          if(item) {
-            this.deleteItem(item)
-          }
-          continue;
-      }
-
-      if(item) {
-        _.merge(item, json_obj);
-      } else {
-        item = this.createItem(json_obj);
-      }
-
-      models.push(item)
-    }
-    this.addItems(models)
-    this.resolveReferences()
-    return models;
-  }
-
-  createItem(json_obj) {
-    if(json_obj.content_type == "Note") {
-      return new Note(json_obj);
-    } else if(json_obj.content_type == "Tag") {
-      return new Tag(json_obj);
-    } else {
-      return new Item(json_obj);
-    }
-  }
-
-  resolveReferences() {
-    this.items.forEach(function(item){
-      // build out references, safely handle broken references
-      item.content.references = _.reduce(item.content.references, function(accumulator, reference){
-        var item = this.findItem(reference.uuid);
-        if(item) {
-          accumulator.push(item);
-        }
-        return accumulator;
-      }.bind(this), []);
-    }.bind(this));
-  }
-
-  itemsForContentType(contentType) {
-    return this.items.filter(function(item){
-      return item.content_type == contentType;
-    });
-  }
-
-  addItem(item) {
-    if(!this.findItem(item.uuid)) {
-      this.items.push(item);
-    }
-  }
-
-  // returns dirty item references that need saving
-  deleteItem(item) {
-    var dirty = [];
-    _.remove(this.items, item);
-    var length = item.content.references.length;
-    // note that references are deleted in this for loop, so you have to be careful how you iterate
-    for(var i = 0; i < length; i++) {
-      var referencedItem = item.content.references[0];
-      // console.log("removing references between items", referencedItem, item);
-      var _dirty = this.removeReferencesBetweenItems(referencedItem, item);
-      dirty = dirty.concat(_dirty);
-    }
-
-    return dirty;
-  }
-
-  removeReferencesBetweenItems(itemOne, itemTwo) {
-    itemOne.removeReference(itemTwo);
-    itemTwo.removeReference(itemOne);
-    return [itemOne, itemTwo];
-  }
-
-  createReferencesBetweenItems(itemOne, itemTwo) {
-    itemOne.addReference(itemTwo);
-    itemTwo.addReference(itemOne);
-    return [itemOne, itemTwo];
-  }
-}
-
-angular.module('app.frontend').service('itemManager', ItemManager);
diff --git a/app/assets/javascripts/app/services/modelManager.js b/app/assets/javascripts/app/services/modelManager.js
index 0a940a02f..af2eea3d5 100644
--- a/app/assets/javascripts/app/services/modelManager.js
+++ b/app/assets/javascripts/app/services/modelManager.js
@@ -1,25 +1,107 @@
-class ModelManager extends ItemManager {
+class ModelManager {
 
   constructor() {
-    super();
     this.notes = [];
     this.tags = [];
-    this.dirtyItems = [];
     this.changeObservers = [];
+    this.items = [];
+  }
+
+  findItem(itemId) {
+    return _.find(this.items, {uuid: itemId});
+  }
+
+  mapResponseItemsToLocalModels(items) {
+    return this.mapResponseItemsToLocalModelsOmittingFields(items, null);
+  }
+
+  mapResponseItemsToLocalModelsOmittingFields(items, omitFields) {
+    var models = []
+    for (var json_obj of items) {
+      json_obj = _.omit(json_obj, omitFields || [])
+      var item = this.findItem(json_obj["uuid"]);
+      if(json_obj["deleted"] == true) {
+          if(item) {
+            this.removeItemLocally(item)
+          }
+          continue;
+      }
+
+      _.omit(json_obj, omitFields);
+
+      if(!item) {
+        item = this.createItem(json_obj);
+      } else {
+        item.updateFromJSON(json_obj);
+      }
+
+      models.push(item)
+    }
+    this.addItems(models)
+    this.resolveReferences()
+    return models;
+  }
+
+  createItem(json_obj) {
+    if(json_obj.content_type == "Note") {
+      return new Note(json_obj);
+    } else if(json_obj.content_type == "Tag") {
+      return new Tag(json_obj);
+    } else {
+      return new Item(json_obj);
+    }
+  }
+
+  addItems(items) {
+    this.items = _.uniq(this.items.concat(items));
+
+    items.forEach(function(item){
+      if(item.content_type == "Tag") {
+        if(!_.find(this.tags, {uuid: item.uuid})) {
+          this.tags.unshift(item);
+        }
+      } else if(item.content_type == "Note") {
+        if(!_.find(this.notes, {uuid: item.uuid})) {
+          this.notes.unshift(item);
+        }
+      }
+    }.bind(this))
+
+  }
+
+  addItem(item) {
+    this.addItems([item])
+  }
+
+  itemsForContentType(contentType) {
+    return this.items.filter(function(item){
+      return item.content_type == contentType;
+    });
   }
 
   resolveReferences() {
-    super.resolveReferences()
+    for(var item of this.items) {
+      var contentObject = item.contentObject;
+      if(!contentObject.references) {
+        continue;
+      }
+
+      for(var reference of contentObject.references) {
+        var referencedItem = this.findItem(reference.uuid);
+        if(referencedItem) {
+          item.addItemAsRelationship(referencedItem);
+        } else {
+          console.log("Unable to find item:", reference.uuid);
+        }
+      }
+    }
 
     this.notes.push.apply(this.notes, _.difference(this.itemsForContentType("Note"), this.notes));
     Item.sortItemsByDate(this.notes);
-    this.notes.forEach(function(note){
-      note.updateReferencesLocalMapping();
-    })
 
     this.tags.push.apply(this.tags, _.difference(this.itemsForContentType("Tag"), this.tags));
     this.tags.forEach(function(tag){
-      tag.updateReferencesLocalMapping();
+      Item.sortItemsByDate(tag.notes);
     })
   }
 
@@ -31,86 +113,65 @@ class ModelManager extends ItemManager {
     _.remove(this.changeObservers, _.find(this.changeObservers, {id: id}));
   }
 
-  addDirtyItems(items) {
-    if(!(items instanceof Array)) {
-      items = [items];
-    }
-
-    this.dirtyItems = this.dirtyItems.concat(items);
-    this.dirtyItems = _.uniq(this.dirtyItems);
-  }
-
   get filteredNotes() {
     return Note.filterDummyNotes(this.notes);
   }
 
-  clearDirtyItems() {
-    console.log("Clearing dirty items", this.dirtyItems);
+  notifyObserversOfSyncCompletion() {
     for(var observer of this.changeObservers) {
       var changedItems = this.dirtyItems.filter(function(item){return item.content_type == observer.type});
       console.log("observer:", observer, "items", changedItems);
       observer.callback(changedItems);
     }
-    this.dirtyItems = [];
   }
 
-  addNote(note) {
-    if(!_.find(this.notes, {uuid: note.uuid})) {
-      this.notes.unshift(note);
-      this.addItem(note);
+  getDirtyItems() {
+    return this.items.filter(function(item){return item.dirty == true && !item.dummy})
+  }
+
+  clearDirtyItems() {
+    this.notifyObserversOfSyncCompletion();
+
+    this.getDirtyItems().forEach(function(item){
+      item.dirty = false;
+    })
+  }
+
+  setItemToBeDeleted(item) {
+    item.deleted = true;
+    item.dirty = true;
+    item.removeFromRelationships();
+  }
+
+  removeItemLocally(item) {
+    _.pull(this.items, item);
+
+    if(item.content_type == "Tag") {
+      _.pull(this.tags, item);
+    } else if(item.content_type == "Note") {
+      _.pull(this.notes, item);
     }
   }
 
-  addTag(tag) {
-    this.tags.unshift(tag);
-    this.addItem(tag);
+  /*
+  Relationships
+  */
+
+  createRelationshipBetweenItems(itemOne, itemTwo) {
+    itemOne.addItemAsRelationship(itemTwo);
+    itemTwo.addItemAsRelationship(itemOne);
+
+    itemOne.dirty = true;
+    itemTwo.dirty = true;
   }
 
-  addTagToNote(tag, note) {
-    var dirty = this.createReferencesBetweenItems(tag, note);
-    this.refreshRelationshipsForTag(tag);
-    this.refreshRelationshipsForNote(note);
-    this.addDirtyItems(dirty);
-  }
+  removeRelationshipBetweenItems(itemOne, itemTwo) {
+    itemOne.removeItemAsRelationship(itemTwo);
+    itemTwo.removeItemAsRelationship(itemOne);
 
-  refreshRelationshipsForTag(tag) {
-    tag.notes = tag.referencesMatchingContentType("Note");
-    Item.sortItemsByDate(tag.notes);
+    itemOne.dirty = true;
+    itemTwo.dirty = true;
   }
-
-  refreshRelationshipsForNote(note) {
-    note.tags = note.referencesMatchingContentType("Tag");
-  }
-
-  removeTagFromNote(tag, note) {
-    var dirty = this.removeReferencesBetweenItems(tag, note);
-    this.addDirtyItems(dirty);
-  }
-
-  deleteItem(item) {
-    var dirty = super.deleteItem(item);
-    if(item.content_type == "Note") {
-        _.remove(this.notes, item);
-    } else if(item.content_type == "Tag") {
-        _.remove(this.tags, item);
-    }
-    return dirty;
-  }
-
-  deleteNote(note) {
-    var dirty = this.deleteItem(note);
-    _.remove(this.notes, note);
-    if(!note.dummy) {
-      this.addDirtyItems(dirty);
-    }
-  }
-
-  deleteTag(tag) {
-    var dirty = this.deleteItem(tag);
-    _.remove(this.tags, tag);
-    this.addDirtyItems(dirty);
-  }
-
 }
 
 angular.module('app.frontend').service('modelManager', ModelManager);
diff --git a/app/assets/templates/frontend/editor.html.haml b/app/assets/templates/frontend/editor.html.haml
index e71dff27f..33ae72a9a 100644
--- a/app/assets/templates/frontend/editor.html.haml
+++ b/app/assets/templates/frontend/editor.html.haml
@@ -2,7 +2,7 @@
   .content
     .section-title-bar.editor-heading{"ng-class" => "{'shared' : ctrl.note.isPublic() }"}
       .title
-        %input.input#note-title-editor{"ng-model" => "ctrl.note.content.title", "ng-keyup" => "$event.keyCode == 13 && ctrl.saveTitle($event)",
+        %input.input#note-title-editor{"ng-model" => "ctrl.note.title", "ng-keyup" => "$event.keyCode == 13 && ctrl.saveTitle($event)",
                   "ng-disabled" => "ctrl.note.locked", "ng-change" => "ctrl.nameChanged()", "ng-focus" => "ctrl.onNameFocus()",
                   "select-on-click" => "true"}
       .save-status {{ctrl.noteStatus}}
@@ -51,8 +51,6 @@
       .sampler-container{"ng-if" => "ctrl.showSampler", "ng-click" => "ctrl.focusEditor()"}
         %strong.name-sampler.sampler{"typewrite" => "true", "text" =>  "ctrl.demoNoteNames", "type-delay" => "30", "initial-delay" => "1.5s",
                                       "iteration-callback" => "ctrl.callback", "prebegin-fn" => "ctrl.prebeginFn", "iteration-delay" => "2000", "cursor" => ""}
-        %code{"ng-if" => "ctrl.currentDemoContent.text"}
-          .content-sampler.sampler{"typewrite" => "true", "text" =>  "ctrl.currentDemoContent.text", "type-delay" => "10", "iteration-callback" => "ctrl.contentCallback"}
-      %textarea.editable#note-text-editor{"ng-disabled" => "ctrl.note.locked", "ng-show" => "ctrl.editorMode == 'edit'", "ng-model" => "ctrl.note.content.text",
+      %textarea.editable#note-text-editor{"ng-disabled" => "ctrl.note.locked", "ng-show" => "ctrl.editorMode == 'edit'", "ng-model" => "ctrl.note.text",
        "ng-change" => "ctrl.contentChanged()", "ng-click" => "ctrl.clickedTextArea()", "ng-focus" => "ctrl.onContentFocus()"}
       .preview{"ng-if" => "ctrl.editorMode == 'preview'", "ng-bind-html" => "ctrl.renderedContent()", "ng-dblclick" => "ctrl.onPreviewDoubleClick()"}
diff --git a/app/assets/templates/frontend/notes.html.haml b/app/assets/templates/frontend/notes.html.haml
index d075bd8bb..da1ad6684 100644
--- a/app/assets/templates/frontend/notes.html.haml
+++ b/app/assets/templates/frontend/notes.html.haml
@@ -1,7 +1,7 @@
 .section.notes
   .content
     .section-title-bar.notes-title-bar
-      .title {{ctrl.tag.content.title}} notes
+      .title {{ctrl.tag.title}} notes
       .add-button{"ng-click" => "ctrl.createNewNote()"} +
       %br
       .filter-section
@@ -34,5 +34,5 @@
         "ng-click" => "ctrl.selectNote(note)", "ng-class" => "{'selected' : ctrl.selectedNote == note}",
         "ng-attr-draggable" => "{{note.dummy ? undefined : 'true'}}", "note" => "note"}
       .name
-        {{note.content.title}}
+        {{note.title}}
       .date {{(note.created_at | appDateTime) || 'Now'}}
diff --git a/app/assets/templates/frontend/tags.html.haml b/app/assets/templates/frontend/tags.html.haml
index 83ffba5e2..b865d4880 100644
--- a/app/assets/templates/frontend/tags.html.haml
+++ b/app/assets/templates/frontend/tags.html.haml
@@ -6,13 +6,13 @@
       {{ctrl.test}}
     .tag{"ng-if" => "ctrl.allTag", "ng-click" => "ctrl.selectTag(ctrl.allTag)", "ng-class" => "{'selected' : ctrl.selectedTag == ctrl.allTag}",
             "droppable" => true, "drop" => "ctrl.handleDrop", "tag" => "ctrl.allTag"}
-      %input.title{"ng-disabled" => "true", "ng-model" => "ctrl.allTag.content.title"}
+      %input.title{"ng-disabled" => "true", "ng-model" => "ctrl.allTag.title"}
       .count {{ctrl.noteCount(ctrl.allTag)}}
 
     .tag{"ng-repeat" => "tag in ctrl.tags", "ng-click" => "ctrl.selectTag(tag)", "ng-class" => "{'selected' : ctrl.selectedTag == tag}",
     "droppable" => true, "drop" => "ctrl.handleDrop", "tag" => "tag"}
       .icon.icon-rss{"ng-if" => "tag.isPublic()"}
-      %input.title{"ng-disabled" => "tag != ctrl.selectedTag", "ng-model" => "tag.content.title",
+      %input.title{"ng-disabled" => "tag != ctrl.selectedTag", "ng-model" => "tag.title",
       "ng-keyup" => "$event.keyCode == 13 && ctrl.saveTag($event, tag)", "mb-autofocus" => "true", "should-focus" => "ctrl.newTag",
       "ng-change" => "ctrl.tagTitleDidChange(tag)", "ng-focus" => "ctrl.onTagTitleFocus(tag)"}
       .count {{ctrl.noteCount(tag)}}
diff --git a/vendor/assets/javascripts/transpiled.js b/vendor/assets/javascripts/transpiled.js
index 8f61addaf..2fc2bf03a 100644
--- a/vendor/assets/javascripts/transpiled.js
+++ b/vendor/assets/javascripts/transpiled.js
@@ -7,6 +7,8 @@ Object.defineProperty(exports, "__esModule", {
 
 var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
 function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
@@ -513,12 +515,12 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
       });
     }
   };
-}).controller('EditorCtrl', function ($sce, $timeout, apiController, modelManager, markdownRenderer, $rootScope) {
+}).controller('EditorCtrl', function ($sce, $timeout, apiController, markdownRenderer, $rootScope) {
 
   this.setNote = function (note, oldNote) {
     this.editorMode = 'edit';
 
-    if (note.content.text.length == 0 && note.dummy) {
+    if (note.safeText().length == 0 && note.dummy) {
       this.focusTitle(100);
     }
 
@@ -554,7 +556,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
   };
 
   this.renderedContent = function () {
-    return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.content.text));
+    return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.safeText()));
   };
 
   var statusTimeout;
@@ -654,7 +656,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
     var original = this.note.presentation_name;
     this.note.presentation_name = this.url.token;
-    modelManager.addDirtyItems([this.note]);
+    this.note.dirty = true;
 
     apiController.sync(function (response) {
       if (!response) {
@@ -916,7 +918,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
   var onUserSet = function onUserSet() {
     apiController.setUser($scope.defaultUser);
     $scope.allTag = new Tag({ all: true });
-    $scope.allTag.content.title = "All";
+    $scope.allTag.title = "All";
     $scope.tags = modelManager.tags;
     $scope.allTag.notes = modelManager.notes;
 
@@ -954,14 +956,18 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
   $scope.tagsSelectionMade = function (tag) {
     $scope.selectedTag = tag;
+
+    if ($scope.selectedNote && $scope.selectedNote.dummy) {
+      modelManager.removeItemLocally($scope.selectedNote);
+    }
   };
 
   $scope.tagsAddNew = function (tag) {
-    modelManager.addTag(tag);
+    modelManager.addItem(tag);
   };
 
   $scope.tagsSave = function (tag, callback) {
-    modelManager.addDirtyItems([tag]);
+    tag.dirty = true;
     apiController.sync(callback);
   };
 
@@ -973,7 +979,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
     var originalNote = _.find(modelManager.notes, { uuid: noteCopy.uuid });
     if (!newTag.all) {
-      modelManager.addTagToNote(newTag, originalNote);
+      modelManager.createRelationshipBetweenItems(newTag, originalNote);
     }
 
     apiController.sync(function () {});
@@ -986,9 +992,9 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
   $scope.notesRemoveTag = function (tag) {
     var validNotes = Note.filterDummyNotes(tag.notes);
     if (validNotes == 0) {
-      modelManager.deleteTag(tag);
+      modelManager.setItemToBeDeleted(tag);
       // if no more notes, delete tag
-      apiController.deleteItem(tag, function () {
+      apiController.sync(function () {
         // force scope tags to update on sub directives
         $scope.tags = [];
         $timeout(function () {
@@ -1005,10 +1011,10 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
   };
 
   $scope.notesAddNew = function (note) {
-    modelManager.addNote(note);
+    modelManager.addItem(note);
 
     if (!$scope.selectedTag.all) {
-      modelManager.addTagToNote($scope.selectedTag, note);
+      modelManager.createRelationshipBetweenItems($scope.selectedTag, note);
       $scope.updateAllTag();
     }
   };
@@ -1018,7 +1024,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
   */
 
   $scope.saveNote = function (note, callback) {
-    modelManager.addDirtyItems(note);
+    note.dirty = true;
 
     apiController.sync(function () {
       note.hasChanges = false;
@@ -1031,17 +1037,18 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
   $scope.deleteNote = function (note) {
 
-    modelManager.deleteNote(note);
+    modelManager.setItemToBeDeleted(note);
 
     if (note == $scope.selectedNote) {
       $scope.selectedNote = null;
     }
 
     if (note.dummy) {
+      modelManager.removeItemLocally(note);
       return;
     }
 
-    apiController.deleteItem(note, function (success) {});
+    apiController.sync(null);
   };
 
   /*
@@ -1161,8 +1168,8 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
   this.createNewNote = function () {
     var title = "New Note" + (this.tag.notes ? " " + (this.tag.notes.length + 1) : "");
-    this.newNote = new Note({ dummy: true });
-    this.newNote.content.title = title;
+    this.newNote = new Note({ dummy: true, text: "" });
+    this.newNote.title = title;
     this.selectNote(this.newNote);
     this.addNew()(this.newNote);
   };
@@ -1173,7 +1180,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
     if (this.noteFilter.text.length == 0) {
       note.visible = true;
     } else {
-      note.visible = note.content.title.toLowerCase().includes(this.noteFilter.text) || note.content.text.toLowerCase().includes(this.noteFilter.text);
+      note.visible = note.title.toLowerCase().includes(this.noteFilter.text) || note.text.toLowerCase().includes(this.noteFilter.text);
     }
     return note.visible;
   }.bind(this);
@@ -1249,7 +1256,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
       return;
     }
 
-    this.newTag = new Tag();
+    this.newTag = new Tag({});
     this.selectedTag = this.newTag;
     this.editingTag = this.newTag;
     this.addNew()(this.newTag);
@@ -1257,7 +1264,7 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
   var originalTagName = "";
   this.onTagTitleFocus = function (tag) {
-    originalTagName = tag.content.title;
+    originalTagName = tag.title;
   };
 
   this.tagTitleDidChange = function (tag) {
@@ -1266,14 +1273,14 @@ angular.module('app.frontend').controller('BaseCtrl', BaseCtrl);
 
   this.saveTag = function ($event, tag) {
     this.editingTag = null;
-    if (tag.content.title.length == 0) {
-      tag.content.title = originalTagName;
+    if (tag.title.length == 0) {
+      tag.title = originalTagName;
       originalTagName = "";
       return;
     }
 
     $event.target.blur();
-    if (!tag.content.title || tag.content.title.length == 0) {
+    if (!tag.title || tag.title.length == 0) {
       return;
     }
 
@@ -1310,85 +1317,67 @@ var Item = function () {
   function Item(json_obj) {
     _classCallCheck(this, Item);
 
-    var content;
-
-    Object.defineProperty(this, "content", {
-      get: function get() {
-        return content;
-      },
-      set: function set(value) {
-        var finalValue = value;
-
-        if (typeof value === 'string') {
-          try {
-            var decodedValue = JSON.parse(value);
-            finalValue = decodedValue;
-          } catch (e) {
-            finalValue = value;
-          }
-        }
-        content = finalValue;
-      },
-      enumerable: true
-    });
-
-    _.merge(this, json_obj);
-
-    if (this.created_at) {
-      this.created_at = new Date(this.created_at);
-      this.updated_at = new Date(this.updated_at);
-    } else {
-      this.created_at = new Date();
-      this.updated_at = new Date();
-    }
+    this.updateFromJSON(json_obj);
 
     if (!this.uuid) {
       this.uuid = Neeto.crypto.generateUUID();
     }
-
-    this.setContentRaw = function (rawContent) {
-      content = rawContent;
-    };
-
-    if (!this.content) {
-      this.content = {};
-    }
-
-    if (!this.content.references) {
-      this.content.references = [];
-    }
   }
 
   _createClass(Item, [{
-    key: 'addReference',
-    value: function addReference(reference) {
-      this.content.references.push(reference);
-      this.content.references = _.uniq(this.content.references);
-      this.updateReferencesLocalMapping();
+    key: 'updateFromJSON',
+    value: function updateFromJSON(json) {
+      _.merge(this, json);
+      if (this.created_at) {
+        this.created_at = new Date(this.created_at);
+        this.updated_at = new Date(this.updated_at);
+      } else {
+        this.created_at = new Date();
+        this.updated_at = new Date();
+      }
+
+      if (json.content) {
+        this.mapContentToLocalProperties(this.contentObject);
+      }
     }
   }, {
-    key: 'removeReference',
-    value: function removeReference(reference) {
-      _.remove(this.content.references, _.find(this.content.references, { uuid: reference.uuid }));
-      this.updateReferencesLocalMapping();
+    key: 'mapContentToLocalProperties',
+    value: function mapContentToLocalProperties(contentObj) {}
+  }, {
+    key: 'createContentJSONFromProperties',
+    value: function createContentJSONFromProperties() {
+      return this.structureParams();
     }
   }, {
-    key: 'referencesMatchingContentType',
-    value: function referencesMatchingContentType(contentType) {
-      return this.content.references.filter(function (reference) {
-        return reference.content_type == contentType;
-      });
+    key: 'referenceParams',
+    value: function referenceParams() {
+      // must override
+    }
+  }, {
+    key: 'structureParams',
+    value: function structureParams() {
+      return { references: this.referenceParams() };
+    }
+  }, {
+    key: 'addItemAsRelationship',
+    value: function addItemAsRelationship(item) {
+      // must override
+    }
+  }, {
+    key: 'removeItemAsRelationship',
+    value: function removeItemAsRelationship(item) {
+      // must override
+    }
+  }, {
+    key: 'removeFromRelationships',
+    value: function removeFromRelationships() {
+      // must override
     }
   }, {
     key: 'mergeMetadataFromItem',
     value: function mergeMetadataFromItem(item) {
       _.merge(this, _.omit(item, ["content"]));
     }
-  }, {
-    key: 'updateReferencesLocalMapping',
-    value: function updateReferencesLocalMapping() {
-      // should be overriden to manage local properties
-    }
   }, {
     key: 'referencesAffectedBySharingChange',
     value: function referencesAffectedBySharingChange() {
@@ -1403,7 +1392,7 @@ var Item = function () {
   }, {
     key: 'isEncrypted',
     value: function isEncrypted() {
-      return this.encryptionEnabled() && typeof this.content === 'string' ? true : false;
+      return this.encryptionEnabled() && this.content.substring(0, 3) === '001' ? true : false;
     }
   }, {
     key: 'encryptionEnabled',
@@ -1415,6 +1404,21 @@ var Item = function () {
     value: function presentationURL() {
       return this.presentation_url;
     }
+  }, {
+    key: 'contentObject',
+    get: function get() {
+      // console.log("getting content object from content", this.content);
+      if (!this.content) {
+        return {};
+      }
+
+      if (this.content !== null && _typeof(this.content) === 'object') {
+        // this is the case when mapping localStorage content, in which case the content is already parsed
+        return this.content;
+      }
+
+      return JSON.parse(this.content);
+    }
   }], [{
     key: 'sortItemsByDate',
     value: function sortItemsByDate(items) {
@@ -1431,42 +1435,36 @@ var Item = function () {
 var Extension = function (_Item) {
   _inherits(Extension, _Item);
 
-  function Extension(json_obj) {
+  function Extension(json) {
     _classCallCheck(this, Extension);
 
-    var _this3 = _possibleConstructorReturn(this, (Extension.__proto__ || Object.getPrototypeOf(Extension)).call(this, json_obj));
+    var _this3 = _possibleConstructorReturn(this, (Extension.__proto__ || Object.getPrototypeOf(Extension)).call(this, json));
 
-    if (!_this3.notes) {
-      _this3.notes = [];
-    }
+    _.merge(_this3, json);
 
-    if (!_this3.content.title) {
-      _this3.content.title = "";
-    }
+    _this3.actions = _this3.actions.map(function (action) {
+      return new Action(action);
+    });
     return _this3;
   }
 
-  _createClass(Extension, [{
-    key: 'updateReferencesLocalMapping',
-    value: function updateReferencesLocalMapping() {
-      _get(Extension.prototype.__proto__ || Object.getPrototypeOf(Extension.prototype), 'updateReferencesLocalMapping', this).call(this);
-      this.notes = this.referencesMatchingContentType("Note");
-    }
-  }, {
-    key: 'referencesAffectedBySharingChange',
-    value: function referencesAffectedBySharingChange() {
-      return this.referencesMatchingContentType("Note");
-    }
-  }, {
-    key: 'content_type',
-    get: function get() {
-      return "Tag";
-    }
-  }]);
-
   return Extension;
 }(Item);
 
+var Action = function Action(json) {
+  _classCallCheck(this, Action);
+
+  _.merge(this, json);
+
+  var comps = this.type.split(":");
+  if (comps.length > 0) {
+    this.repeatable = true;
+    this.repeatType = comps[0]; // 'watch' or 'poll'
+    this.repeatVerb = comps[1]; // http verb
+    this.repeatFrequency = comps[2];
+  }
+};
+
 ;
 var Note = function (_Item2) {
   _inherits(Note, _Item2);
@@ -1479,28 +1477,76 @@ var Note = function (_Item2) {
     if (!_this4.tags) {
       _this4.tags = [];
     }
-
-    if (!_this4.content.title) {
-      _this4.content.title = "";
-    }
-
-    if (!_this4.content.text) {
-      _this4.content.text = "";
-    }
     return _this4;
   }
 
   _createClass(Note, [{
-    key: 'updateReferencesLocalMapping',
-    value: function updateReferencesLocalMapping() {
-      _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'updateReferencesLocalMapping', this).call(this);
-      this.tags = this.referencesMatchingContentType("Tag");
+    key: 'mapContentToLocalProperties',
+    value: function mapContentToLocalProperties(contentObject) {
+      _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'mapContentToLocalProperties', this).call(this, contentObject);
+      this.title = contentObject.title;
+      this.text = contentObject.text;
+    }
+  }, {
+    key: 'referenceParams',
+    value: function referenceParams() {
+      var references = _.map(this.tags, function (tag) {
+        return { uuid: tag.uuid, content_type: tag.content_type };
+      });
+      return references;
+    }
+  }, {
+    key: 'structureParams',
+    value: function structureParams() {
+      var params = {
+        title: this.title,
+        text: this.text
+      };
+
+      _.merge(params, _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'structureParams', this).call(this));
+      return params;
+    }
+  }, {
+    key: 'addItemAsRelationship',
+    value: function addItemAsRelationship(item) {
+      if (item.content_type == "Tag") {
+        if (!_.find(this.tags, item)) {
+          this.tags.push(item);
+        }
+      }
+      _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'addItemAsRelationship', this).call(this, item);
+    }
+  }, {
+    key: 'removeItemAsRelationship',
+    value: function removeItemAsRelationship(item) {
+      if (item.content_type == "Tag") {
+        _.pull(this.tags, item);
+      }
+      _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'removeItemAsRelationship', this).call(this, item);
+    }
+  }, {
+    key: 'removeFromRelationships',
+    value: function removeFromRelationships() {
+      this.tags.forEach(function (tag) {
+        _.pull(tag.notes, this);
+        tag.dirty = true;
+      });
     }
   }, {
     key: 'referencesAffectedBySharingChange',
     value: function referencesAffectedBySharingChange() {
       return _get(Note.prototype.__proto__ || Object.getPrototypeOf(Note.prototype), 'referencesAffectedBySharingChange', this).call(this);
     }
+  }, {
+    key: 'safeText',
+    value: function safeText() {
+      return this.text || "";
+    }
+  }, {
+    key: 'safeTitle',
+    value: function safeTitle() {
+      return this.title || "";
+    }
   }, {
     key: 'toJSON',
     value: function toJSON() {
@@ -1578,23 +1624,63 @@ var Tag = function (_Item3) {
     if (!_this5.notes) {
       _this5.notes = [];
     }
-
-    if (!_this5.content.title) {
-      _this5.content.title = "";
-    }
     return _this5;
   }
 
   _createClass(Tag, [{
-    key: 'updateReferencesLocalMapping',
-    value: function updateReferencesLocalMapping() {
-      _get(Tag.prototype.__proto__ || Object.getPrototypeOf(Tag.prototype), 'updateReferencesLocalMapping', this).call(this);
-      this.notes = this.referencesMatchingContentType("Note");
+    key: 'mapContentToLocalProperties',
+    value: function mapContentToLocalProperties(contentObject) {
+      _get(Tag.prototype.__proto__ || Object.getPrototypeOf(Tag.prototype), 'mapContentToLocalProperties', this).call(this, contentObject);
+      this.title = contentObject.title;
+    }
+  }, {
+    key: 'referenceParams',
+    value: function referenceParams() {
+      var references = _.map(this.notes, function (note) {
+        return { uuid: note.uuid, content_type: note.content_type };
+      });
+      return references;
+    }
+  }, {
+    key: 'structureParams',
+    value: function structureParams() {
+      var params = {
+        title: this.title
+      };
+
+      _.merge(params, _get(Tag.prototype.__proto__ || Object.getPrototypeOf(Tag.prototype), 'structureParams', this).call(this));
+      return params;
+    }
+  }, {
+    key: 'addItemAsRelationship',
+    value: function addItemAsRelationship(item) {
+      if (item.content_type == "Note") {
+        if (!_.find(this.notes, item)) {
+          this.notes.unshift(item);
+        }
+      }
+      _get(Tag.prototype.__proto__ || Object.getPrototypeOf(Tag.prototype), 'addItemAsRelationship', this).call(this, item);
+    }
+  }, {
+    key: 'removeItemAsRelationship',
+    value: function removeItemAsRelationship(item) {
+      if (item.content_type == "Note") {
+        _.pull(this.notes, item);
+      }
+      _get(Tag.prototype.__proto__ || Object.getPrototypeOf(Tag.prototype), 'removeItemAsRelationship', this).call(this, item);
+    }
+  }, {
+    key: 'removeFromRelationships',
+    value: function removeFromRelationships() {
+      this.notes.forEach(function (note) {
+        _.pull(note.tags, this);
+        note.dirty = true;
+      });
     }
   }, {
     key: 'referencesAffectedBySharingChange',
     value: function referencesAffectedBySharingChange() {
-      return this.referencesMatchingContentType("Note");
+      return this.notes;
     }
   }, {
     key: 'content_type',
@@ -1825,20 +1911,24 @@ var User = function User(json_obj) {
       var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
 
       if (!this.user.uuid) {
-        this.writeItemsToLocalStorage();
-        modelManager.clearDirtyItems();
-        if (callback) {
-          callback();
-        }
+        this.writeItemsToLocalStorage(function (responseItems) {
+          this.handleItemsResponse(responseItems);
+          modelManager.clearDirtyItems();
+          if (callback) {
+            callback();
+          }
+        }.bind(this));
         return;
       }
 
-      var dirtyItems = modelManager.dirtyItems;
+      var dirtyItems = modelManager.getDirtyItems();
       var request = Restangular.one("items/sync");
       request.items = _.map(dirtyItems, function (item) {
         return this.createRequestParamsForItem(item, options.additionalFields);
       }.bind(this));
 
+      console.log("syncing items", request.items);
+
       if (this.syncToken) {
         request.sync_token = this.syncToken;
       }
@@ -1878,11 +1968,10 @@ var User = function User(json_obj) {
     this.paramsForItem = function (item, encrypted, additionalFields, forExportFile) {
       var itemCopy = _.cloneDeep(item);
 
-      var params = { uuid: item.uuid, content_type: item.content_type, presentation_name: item.presentation_name, deleted: item.deleted };
+      console.assert(!item.dummy, "Item is dummy, should not have gotten here.", item.dummy);
 
-      itemCopy.content.references = _.map(itemCopy.content.references, function (reference) {
-        return { uuid: reference.uuid, content_type: reference.content_type };
-      });
+      var params = { uuid: item.uuid, content_type: item.content_type,
+        presentation_name: item.presentation_name, deleted: item.deleted };
 
       if (encrypted) {
         this.encryptSingleItem(itemCopy, this.retrieveMk());
@@ -1890,7 +1979,7 @@ var User = function User(json_obj) {
         params.enc_item_key = itemCopy.enc_item_key;
         params.auth_hash = itemCopy.auth_hash;
       } else {
-        params.content = forExportFile ? itemCopy.content : "000" + Neeto.crypto.base64(JSON.stringify(itemCopy.content));
+        params.content = forExportFile ? itemCopy.content : "000" + Neeto.crypto.base64(JSON.stringify(itemCopy.createContentJSONFromProperties()));
         if (!forExportFile) {
           params.enc_item_key = null;
           params.auth_hash = null;
@@ -1904,12 +1993,6 @@ var User = function User(json_obj) {
       return params;
     };
 
-    this.deleteItem = function (item, callback) {
-      item.deleted = true;
-      modelManager.addDirtyItems([item]);
-      this.sync(callback);
-    };
-
     this.shareItem = function (item, callback) {
       if (!this.user.uuid) {
         alert("You must be signed in to share.");
@@ -1919,7 +2002,9 @@ var User = function User(json_obj) {
       var shareFn = function () {
         item.presentation_name = "_auto_";
         var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);
-        modelManager.addDirtyItems(needsUpdate);
+        needsUpdate.forEach(function (needingUpdate) {
+          needingUpdate.dirty = true;
+        });
         this.sync();
       }.bind(this);
 
@@ -1946,7 +2031,9 @@ var User = function User(json_obj) {
     this.unshareItem = function (item, callback) {
       item.presentation_name = null;
       var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);
-      modelManager.addDirtyItems(needsUpdate);
+      needsUpdate.forEach(function (needingUpdate) {
+        needingUpdate.dirty = true;
+      });
       this.sync(null);
     };
 
@@ -1957,7 +2044,9 @@ var User = function User(json_obj) {
     this.importJSONData = function (jsonString, callback) {
       var data = JSON.parse(jsonString);
       modelManager.mapResponseItemsToLocalModels(data.items);
-      modelManager.addDirtyItems(modelManager.items);
+      modelManager.items.forEach(function (item) {
+        item.dirty = true;
+      });
       this.syncWithOptions(callback, { additionalFields: ["created_at", "updated_at"] });
     };
 
@@ -2005,7 +2094,7 @@ var User = function User(json_obj) {
           var tag = tags.filter(function (tag) {
             return tag.uuid == item.tag_id;
           })[0];
-          item.tag_name = tag.content.title;
+          item.tag_name = tag.title;
         }
       });
       request.post().then(function (response) {
@@ -2018,11 +2107,13 @@ var User = function User(json_obj) {
       return JSON.parse(JSON.stringify(object));
     };
 
-    this.writeItemsToLocalStorage = function () {
+    this.writeItemsToLocalStorage = function (callback) {
       var items = _.map(modelManager.items, function (item) {
-        return this.paramsForItem(item, false, ["created_at", "updated_at"], true);
+        return this.paramsForItem(item, false, ["created_at", "updated_at"], false);
       }.bind(this));
+      console.log("writing items to local", items);
       this.writeToLocalStorage('items', items);
+      callback(items);
     };
 
     this.writeToLocalStorage = function (key, value) {
@@ -2032,7 +2123,7 @@ var User = function User(json_obj) {
     this.loadLocalItemsAndUser = function () {
       var user = {};
       var items = JSON.parse(localStorage.getItem('items')) || [];
-      items = modelManager.mapResponseItemsToLocalModels(items);
+      items = this.handleItemsResponse(items);
       Item.sortItemsByDate(items);
       user.items = items;
       user.shouldMerge = true;
@@ -2090,7 +2181,7 @@ var User = function User(json_obj) {
 
       var ek = Neeto.crypto.firstHalfOfKey(item_key);
       var ak = Neeto.crypto.secondHalfOfKey(item_key);
-      var encryptedContent = "001" + Neeto.crypto.encryptText(JSON.stringify(item.content), ek);
+      var encryptedContent = "001" + Neeto.crypto.encryptText(JSON.stringify(item.createContentJSONFromProperties()), ek);
       var authHash = Neeto.crypto.hmac256(encryptedContent, ak);
 
       item.content = encryptedContent;
@@ -2642,24 +2733,40 @@ angular.module('app.frontend').service('extensionManager', ExtensionManager);
     return input ? $filter('date')(new Date(input), 'MM/dd/yyyy h:mm a') : '';
   };
 });
-;
-var ItemManager = function () {
-  function ItemManager() {
-    _classCallCheck(this, ItemManager);
+;;angular.module('app.frontend').service('markdownRenderer', function ($sce) {
 
-    this._items = [];
+  marked.setOptions({
+    breaks: true,
+    sanitize: true
+  });
+
+  this.renderedContentForText = function (text) {
+    if (!text || text.length == 0) {
+      return "";
+    }
+    return marked(text);
+  };
+
+  this.renderHtml = function (html_code) {
+    return $sce.trustAsHtml(html_code);
+  };
+});
+;
+var ModelManager = function () {
+  function ModelManager() {
+    _classCallCheck(this, ModelManager);
+
+    this.notes = [];
+    this.tags = [];
+    this.changeObservers = [];
+    this.items = [];
   }
 
-  _createClass(ItemManager, [{
+  _createClass(ModelManager, [{
     key: 'findItem',
     value: function findItem(itemId) {
       return _.find(this.items, { uuid: itemId });
     }
-  }, {
-    key: 'addItems',
-    value: function addItems(items) {
-      this._items = _.uniq(this.items.concat(items));
-    }
   }, {
     key: 'mapResponseItemsToLocalModels',
     value: function mapResponseItemsToLocalModels(items) {
@@ -2681,15 +2788,17 @@ var ItemManager = function () {
           var item = this.findItem(json_obj["uuid"]);
           if (json_obj["deleted"] == true) {
             if (item) {
-              this.deleteItem(item);
+              this.removeItemLocally(item);
             }
             continue;
           }
 
-          if (item) {
-            _.merge(item, json_obj);
-          } else {
+          _.omit(json_obj, omitFields);
+
+          if (!item) {
             item = this.createItem(json_obj);
+          } else {
+            item.updateFromJSON(json_obj);
           }
 
           models.push(item);
@@ -2725,19 +2834,27 @@ var ItemManager = function () {
       }
     }
   }, {
-    key: 'resolveReferences',
-    value: function resolveReferences() {
-      this.items.forEach(function (item) {
-        // build out references, safely handle broken references
-        item.content.references = _.reduce(item.content.references, function (accumulator, reference) {
-          var item = this.findItem(reference.uuid);
-          if (item) {
-            accumulator.push(item);
+    key: 'addItems',
+    value: function addItems(items) {
+      this.items = _.uniq(this.items.concat(items));
+
+      items.forEach(function (item) {
+        if (item.content_type == "Tag") {
+          if (!_.find(this.tags, { uuid: item.uuid })) {
+            this.tags.unshift(item);
           }
-          return accumulator;
-        }.bind(this), []);
+        } else if (item.content_type == "Note") {
+          if (!_.find(this.notes, { uuid: item.uuid })) {
+            this.notes.unshift(item);
+          }
+        }
       }.bind(this));
     }
+  }, {
+    key: 'addItem',
+    value: function addItem(item) {
+      this.addItems([item]);
+    }
   }, {
     key: 'itemsForContentType',
     value: function itemsForContentType(contentType) {
@@ -2746,143 +2863,50 @@ var ItemManager = function () {
       });
     }
   }, {
-    key: 'addItem',
-    value: function addItem(item) {
-      if (!this.findItem(item.uuid)) {
-        this.items.push(item);
-      }
-    }
-
-    // returns dirty item references that need saving
-
-  }, {
-    key: 'deleteItem',
-    value: function deleteItem(item) {
-      var dirty = [];
-      _.remove(this.items, item);
-      var length = item.content.references.length;
-      // note that references are deleted in this for loop, so you have to be careful how you iterate
-      for (var i = 0; i < length; i++) {
-        var referencedItem = item.content.references[0];
-        // console.log("removing references between items", referencedItem, item);
-        var _dirty = this.removeReferencesBetweenItems(referencedItem, item);
-        dirty = dirty.concat(_dirty);
-      }
-
-      return dirty;
-    }
-  }, {
-    key: 'removeReferencesBetweenItems',
-    value: function removeReferencesBetweenItems(itemOne, itemTwo) {
-      itemOne.removeReference(itemTwo);
-      itemTwo.removeReference(itemOne);
-      return [itemOne, itemTwo];
-    }
-  }, {
-    key: 'createReferencesBetweenItems',
-    value: function createReferencesBetweenItems(itemOne, itemTwo) {
-      itemOne.addReference(itemTwo);
-      itemTwo.addReference(itemOne);
-      return [itemOne, itemTwo];
-    }
-  }, {
-    key: 'items',
-    get: function get() {
-      return this._items;
-    }
-  }]);
-
-  return ItemManager;
-}();
-
-angular.module('app.frontend').service('itemManager', ItemManager);
-;angular.module('app.frontend').service('markdownRenderer', function ($sce) {
-
-  marked.setOptions({
-    breaks: true,
-    sanitize: true
-  });
-
-  this.renderedContentForText = function (text) {
-    if (!text || text.length == 0) {
-      return "";
-    }
-    return marked(text);
-  };
-
-  this.renderHtml = function (html_code) {
-    return $sce.trustAsHtml(html_code);
-  };
-});
-;
-var ModelManager = function (_ItemManager) {
-  _inherits(ModelManager, _ItemManager);
-
-  function ModelManager() {
-    _classCallCheck(this, ModelManager);
-
-    var _this6 = _possibleConstructorReturn(this, (ModelManager.__proto__ || Object.getPrototypeOf(ModelManager)).call(this));
-
-    _this6.notes = [];
-    _this6.tags = [];
-    _this6.dirtyItems = [];
-    _this6.changeObservers = [];
-    return _this6;
-  }
-
-  _createClass(ModelManager, [{
     key: 'resolveReferences',
     value: function resolveReferences() {
-      _get(ModelManager.prototype.__proto__ || Object.getPrototypeOf(ModelManager.prototype), 'resolveReferences', this).call(this);
-
-      this.notes.push.apply(this.notes, _.difference(this.itemsForContentType("Note"), this.notes));
-      Item.sortItemsByDate(this.notes);
-      this.notes.forEach(function (note) {
-        note.updateReferencesLocalMapping();
-      });
-
-      this.tags.push.apply(this.tags, _.difference(this.itemsForContentType("Tag"), this.tags));
-      this.tags.forEach(function (tag) {
-        tag.updateReferencesLocalMapping();
-      });
-    }
-  }, {
-    key: 'addItemObserver',
-    value: function addItemObserver(id, type, callback) {
-      this.changeObservers.push({ id: id, type: type, callback: callback });
-    }
-  }, {
-    key: 'removeItemObserver',
-    value: function removeItemObserver(id) {
-      _.remove(this.changeObservers, _.find(this.changeObservers, { id: id }));
-    }
-  }, {
-    key: 'addDirtyItems',
-    value: function addDirtyItems(items) {
-      if (!(items instanceof Array)) {
-        items = [items];
-      }
-
-      this.dirtyItems = this.dirtyItems.concat(items);
-      this.dirtyItems = _.uniq(this.dirtyItems);
-    }
-  }, {
-    key: 'clearDirtyItems',
-    value: function clearDirtyItems() {
-      console.log("Clearing dirty items", this.dirtyItems);
       var _iteratorNormalCompletion5 = true;
       var _didIteratorError5 = false;
       var _iteratorError5 = undefined;
 
       try {
-        for (var _iterator5 = this.changeObservers[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-          var observer = _step5.value;
+        for (var _iterator5 = this.items[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+          var item = _step5.value;
 
-          var changedItems = this.dirtyItems.filter(function (item) {
-            return item.content_type == observer.type;
-          });
-          console.log("observer:", observer, "items", changedItems);
-          observer.callback(changedItems);
+          var contentObject = item.contentObject;
+          if (!contentObject.references) {
+            continue;
+          }
+
+          var _iteratorNormalCompletion6 = true;
+          var _didIteratorError6 = false;
+          var _iteratorError6 = undefined;
+
+          try {
+            for (var _iterator6 = contentObject.references[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+              var reference = _step6.value;
+
+              var referencedItem = this.findItem(reference.uuid);
+              if (referencedItem) {
+                item.addItemAsRelationship(referencedItem);
+              } else {
+                console.log("Unable to find item:", reference.uuid);
+              }
+            }
+          } catch (err) {
+            _didIteratorError6 = true;
+            _iteratorError6 = err;
+          } finally {
+            try {
+              if (!_iteratorNormalCompletion6 && _iterator6.return) {
+                _iterator6.return();
+              }
+            } finally {
+              if (_didIteratorError6) {
+                throw _iteratorError6;
+              }
+            }
+          }
         }
       } catch (err) {
         _didIteratorError5 = true;
@@ -2899,73 +2923,112 @@ var ModelManager = function (_ItemManager) {
         }
       }
 
-      this.dirtyItems = [];
+      this.notes.push.apply(this.notes, _.difference(this.itemsForContentType("Note"), this.notes));
+      Item.sortItemsByDate(this.notes);
+
+      this.tags.push.apply(this.tags, _.difference(this.itemsForContentType("Tag"), this.tags));
+      this.tags.forEach(function (tag) {
+        Item.sortItemsByDate(tag.notes);
+      });
     }
   }, {
-    key: 'addNote',
-    value: function addNote(note) {
-      if (!_.find(this.notes, { uuid: note.uuid })) {
-        this.notes.unshift(note);
-        this.addItem(note);
+    key: 'addItemObserver',
+    value: function addItemObserver(id, type, callback) {
+      this.changeObservers.push({ id: id, type: type, callback: callback });
+    }
+  }, {
+    key: 'removeItemObserver',
+    value: function removeItemObserver(id) {
+      _.remove(this.changeObservers, _.find(this.changeObservers, { id: id }));
+    }
+  }, {
+    key: 'notifyObserversOfSyncCompletion',
+    value: function notifyObserversOfSyncCompletion() {
+      var _iteratorNormalCompletion7 = true;
+      var _didIteratorError7 = false;
+      var _iteratorError7 = undefined;
+
+      try {
+        for (var _iterator7 = this.changeObservers[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+          var observer = _step7.value;
+
+          var changedItems = this.dirtyItems.filter(function (item) {
+            return item.content_type == observer.type;
+          });
+          console.log("observer:", observer, "items", changedItems);
+          observer.callback(changedItems);
+        }
+      } catch (err) {
+        _didIteratorError7 = true;
+        _iteratorError7 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion7 && _iterator7.return) {
+            _iterator7.return();
+          }
+        } finally {
+          if (_didIteratorError7) {
+            throw _iteratorError7;
+          }
+        }
       }
     }
   }, {
-    key: 'addTag',
-    value: function addTag(tag) {
-      this.tags.unshift(tag);
-      this.addItem(tag);
+    key: 'getDirtyItems',
+    value: function getDirtyItems() {
+      return this.items.filter(function (item) {
+        return item.dirty == true && !item.dummy;
+      });
     }
   }, {
-    key: 'addTagToNote',
-    value: function addTagToNote(tag, note) {
-      var dirty = this.createReferencesBetweenItems(tag, note);
-      this.refreshRelationshipsForTag(tag);
-      this.refreshRelationshipsForNote(note);
-      this.addDirtyItems(dirty);
+    key: 'clearDirtyItems',
+    value: function clearDirtyItems() {
+      this.notifyObserversOfSyncCompletion();
+
+      this.getDirtyItems().forEach(function (item) {
+        item.dirty = false;
+      });
     }
   }, {
-    key: 'refreshRelationshipsForTag',
-    value: function refreshRelationshipsForTag(tag) {
-      tag.notes = tag.referencesMatchingContentType("Note");
-      Item.sortItemsByDate(tag.notes);
+    key: 'setItemToBeDeleted',
+    value: function setItemToBeDeleted(item) {
+      item.deleted = true;
+      item.dirty = true;
+      item.removeFromRelationships();
     }
   }, {
-    key: 'refreshRelationshipsForNote',
-    value: function refreshRelationshipsForNote(note) {
-      note.tags = note.referencesMatchingContentType("Tag");
-    }
-  }, {
-    key: 'removeTagFromNote',
-    value: function removeTagFromNote(tag, note) {
-      var dirty = this.removeReferencesBetweenItems(tag, note);
-      this.addDirtyItems(dirty);
-    }
-  }, {
-    key: 'deleteItem',
-    value: function deleteItem(item) {
-      var dirty = _get(ModelManager.prototype.__proto__ || Object.getPrototypeOf(ModelManager.prototype), 'deleteItem', this).call(this, item);
-      if (item.content_type == "Note") {
-        _.remove(this.notes, item);
-      } else if (item.content_type == "Tag") {
-        _.remove(this.tags, item);
-      }
-      return dirty;
-    }
-  }, {
-    key: 'deleteNote',
-    value: function deleteNote(note) {
-      var dirty = this.deleteItem(note);
-      _.remove(this.notes, note);
-      if (!note.dummy) {
-        this.addDirtyItems(dirty);
+    key: 'removeItemLocally',
+    value: function removeItemLocally(item) {
+      _.pull(this.items, item);
+
+      if (item.content_type == "Tag") {
+        _.pull(this.tags, item);
+      } else if (item.content_type == "Note") {
+        _.pull(this.notes, item);
       }
     }
+
+    /*
+    Relationships
+    */
+
   }, {
-    key: 'deleteTag',
-    value: function deleteTag(tag) {
-      var dirty = this.deleteItem(tag);
-      _.remove(this.tags, tag);
-      this.addDirtyItems(dirty);
+    key: 'createRelationshipBetweenItems',
+    value: function createRelationshipBetweenItems(itemOne, itemTwo) {
+      itemOne.addItemAsRelationship(itemTwo);
+      itemTwo.addItemAsRelationship(itemOne);
+
+      itemOne.dirty = true;
+      itemTwo.dirty = true;
+    }
+  }, {
+    key: 'removeRelationshipBetweenItems',
+    value: function removeRelationshipBetweenItems(itemOne, itemTwo) {
+      itemOne.removeItemAsRelationship(itemTwo);
+      itemTwo.removeItemAsRelationship(itemOne);
+
+      itemOne.dirty = true;
+      itemTwo.dirty = true;
     }
   }, {
     key: 'filteredNotes',
@@ -2975,7 +3038,7 @@ var ModelManager = function (_ItemManager) {
   }]);
 
   return ModelManager;
-}(ItemManager);
+}();
 
 angular.module('app.frontend').service('modelManager', ModelManager);
 ;angular.module('app.frontend').service('serverSideValidation', function ($sce) {
diff --git a/vendor/assets/javascripts/transpiled.js.map b/vendor/assets/javascripts/transpiled.js.map
index 7aaba04ed..2d014cb07 100644
--- a/vendor/assets/javascripts/transpiled.js.map
+++ b/vendor/assets/javascripts/transpiled.js.map
@@ -1 +1 @@
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SNCrypto {\n\n  generateRandomKey() {\n    return CryptoJS.lib.WordArray.random(512/8).toString();\n  }\n\n  generateUUID() {\n    var crypto = window.crypto || window.msCrypto;\n    if(crypto) {\n      var buf = new Uint32Array(4);\n      crypto.getRandomValues(buf);\n      var idx = -1;\n      return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\n          idx++;\n          var r = (buf[idx>>3] >> ((idx%8)*4))&15;\n          var v = c == 'x' ? r : (r&0x3|0x8);\n          return v.toString(16);\n      });\n    } else {\n      var d = new Date().getTime();\n      if(window.performance && typeof window.performance.now === \"function\"){\n        d += performance.now(); //use high-precision timer if available\n      }\n      var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\n        var r = (d + Math.random()*16)%16 | 0;\n        d = Math.floor(d/16);\n        return (c=='x' ? r : (r&0x3|0x8)).toString(16);\n      });\n      return uuid;\n    }\n  }\n\n  decryptText(encrypted_content, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var ivData  = CryptoJS.enc.Hex.parse(\"\");\n    var decrypted = CryptoJS.AES.decrypt(encrypted_content, keyData, { iv: ivData,  mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 });\n    return decrypted.toString(CryptoJS.enc.Utf8);\n  }\n\n  encryptText(text, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var ivData  = CryptoJS.enc.Hex.parse(\"\");\n    var encrypted = CryptoJS.AES.encrypt(text, keyData, { iv: ivData,  mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 });\n    return encrypted.toString();\n  }\n\n  generateRandomEncryptionKey() {\n    var salt = Neeto.crypto.generateRandomKey();\n    var passphrase = Neeto.crypto.generateRandomKey();\n    return CryptoJS.PBKDF2(passphrase, salt, { keySize: 512/32 }).toString();\n  }\n\n  firstHalfOfKey(key) {\n    return key.substring(0, key.length/2);\n  }\n\n  secondHalfOfKey(key) {\n    return key.substring(key.length/2, key.length);\n  }\n\n  base64(text) {\n    return CryptoJS.enc.Utf8.parse(text).toString(CryptoJS.enc.Base64)\n  }\n\n  base64Decode(base64String) {\n    return CryptoJS.enc.Base64.parse(base64String).toString(CryptoJS.enc.Utf8)\n  }\n\n  sha256(text) {\n    return CryptoJS.SHA256(text).toString();\n  }\n\n  sha1(text) {\n    return CryptoJS.SHA1(text).toString();\n  }\n\n  hmac256(message, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var messageData = CryptoJS.enc.Utf8.parse(message);\n    return CryptoJS.HmacSHA256(messageData, keyData).toString();\n  }\n\n  computeEncryptionKeysForUser({email, password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n     this.generateSymmetricKeyPair({password: password, pw_salt: pw_salt,\n       pw_func: pw_func, pw_alg: pw_alg, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(keys){\n         var pw = keys[0];\n         var mk = keys[1];\n\n         callback({pw: pw, mk: mk});\n       });\n   }\n\n   generateInitialEncryptionKeysForUser({email, password} = {}, callback) {\n     var defaults = this.defaultPasswordGenerationParams();\n     var {pw_func, pw_alg, pw_key_size, pw_cost} = defaults;\n     var pw_nonce = this.generateRandomKey();\n     var pw_salt = this.sha1(email + \"SN\" + pw_nonce);\n     this.generateSymmetricKeyPair(_.merge({email: email, password: password, pw_salt: pw_salt}, defaults), function(keys){\n       var pw = keys[0];\n       var mk = keys[1];\n\n       callback(_.merge({pw: pw, mk: mk, pw_nonce: pw_nonce}, defaults));\n     });\n   }\n}\n\nexport { SNCrypto }\n;class SNCryptoJS extends SNCrypto {\n\n   /** Generates two deterministic keys based on one input */\n   generateSymmetricKeyPair({password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n     var algMapping = {\n       \"sha256\" : CryptoJS.algo.SHA256,\n       \"sha512\" : CryptoJS.algo.SHA512\n     }\n     var fnMapping = {\n       \"pbkdf2\" : CryptoJS.PBKDF2\n     }\n\n     var alg = algMapping[pw_alg];\n     var kdf = fnMapping[pw_func];\n     var output = kdf(password, pw_salt, { keySize: pw_key_size/32, hasher: alg, iterations: pw_cost }).toString();\n\n     var outputLength = output.length;\n     var firstHalf = output.slice(0, outputLength/2);\n     var secondHalf = output.slice(outputLength/2, outputLength);\n     callback([firstHalf, secondHalf])\n   }\n\n   defaultPasswordGenerationParams() {\n     return {pw_func: \"pbkdf2\", pw_alg: \"sha512\", pw_key_size: 512, pw_cost: 3000};\n   }\n }\n\n\nexport { SNCryptoJS }\n;var subtleCrypto = window.crypto.subtle;\n\nclass SNCryptoWeb extends SNCrypto {\n\n  /**\n  Overrides\n  */\n  defaultPasswordGenerationParams() {\n    return {pw_func: \"pbkdf2\", pw_alg: \"sha512\", pw_key_size: 512, pw_cost: 5000};\n  }\n\n  /** Generates two deterministic keys based on one input */\n  generateSymmetricKeyPair({password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n   this.stretchPassword({password: password, pw_func: pw_func, pw_alg: pw_alg, pw_salt: pw_salt, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(output){\n     var outputLength = output.length;\n     var firstHalf = output.slice(0, outputLength/2);\n     var secondHalf = output.slice(outputLength/2, outputLength);\n     callback([firstHalf, secondHalf]);\n   })\n  }\n\n  /**\n  Internal\n  */\n\n  stretchPassword({password, pw_salt, pw_cost, pw_func, pw_alg, pw_key_size} = {}, callback) {\n\n   this.webCryptoImportKey(password, pw_func, function(key){\n\n     if(!key) {\n       console.log(\"Key is null, unable to continue\");\n       callback(null);\n       return;\n     }\n\n     this.webCryptoDeriveBits({key: key, pw_func: pw_func, pw_alg: pw_alg, pw_salt: pw_salt, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(key){\n       if(!key) {\n         callback(null);\n         return;\n       }\n\n       callback(key);\n\n     }.bind(this))\n   }.bind(this))\n  }\n\n  webCryptoImportKey(input, pw_func, callback) {\n     subtleCrypto.importKey(\n      \"raw\",\n      this.stringToArrayBuffer(input),\n      {name: pw_func.toUpperCase()},\n      false,\n      [\"deriveBits\"]\n    )\n    .then(function(key){\n      callback(key);\n    })\n    .catch(function(err){\n      console.error(err);\n      callback(null);\n    });\n  }\n\n  webCryptoDeriveBits({key, pw_func, pw_alg, pw_salt, pw_cost, pw_key_size} = {}, callback) {\n     var algMapping = {\n       \"sha256\" : \"SHA-256\",\n       \"sha512\" : \"SHA-512\",\n     }\n     var alg = algMapping[pw_alg];\n     subtleCrypto.deriveBits(\n      {\n        \"name\": pw_func.toUpperCase(),\n        salt: this.stringToArrayBuffer(pw_salt),\n        iterations: pw_cost,\n        hash: {name: alg},\n      },\n      key,\n      pw_key_size\n    )\n    .then(function(bits){\n      var key = this.arrayBufferToHexString(new Uint8Array(bits));\n      callback(key);\n    }.bind(this))\n    .catch(function(err){\n      console.error(err);\n      callback(null);\n    });\n  }\n\n  stringToArrayBuffer(string) {\n     var encoder = new TextEncoder(\"utf-8\");\n     return encoder.encode(string);\n   }\n\n  arrayBufferToHexString(arrayBuffer) {\n      var byteArray = new Uint8Array(arrayBuffer);\n      var hexString = \"\";\n      var nextHexByte;\n\n      for (var i=0; i<byteArray.byteLength; i++) {\n          nextHexByte = byteArray[i].toString(16);\n          if (nextHexByte.length < 2) {\n              nextHexByte = \"0\" + nextHexByte;\n          }\n          hexString += nextHexByte;\n      }\n      return hexString;\n  }\n}\n\nexport { SNCryptoWeb }\n;'use strict';\n\nvar Neeto = Neeto || {};\n\nif(window.crypto.subtle) {\n  Neeto.crypto = new SNCryptoWeb();\n} else {\n  Neeto.crypto = new SNCryptoJS();\n}\n\nangular.module('app.frontend', [\n  'ui.router',\n  'restangular',\n  'oc.lazyLoad',\n  'angularLazyImg',\n  'ngDialog'\n])\n\n.config(function (RestangularProvider, apiControllerProvider) {\n  RestangularProvider.setDefaultHeaders({\"Content-Type\": \"application/json\"});\n\n  var url = apiControllerProvider.defaultServerURL();\n  RestangularProvider.setBaseUrl(url + \"/api\");\n\n  RestangularProvider.setFullRequestInterceptor(function(element, operation, route, url, headers, params, httpConfig) {\n    var token = localStorage.getItem(\"jwt\");\n    if(token) {\n      headers = _.extend(headers, {Authorization: \"Bearer \" + localStorage.getItem(\"jwt\")});\n    }\n\n    return {\n      element: element,\n      params: params,\n      headers: headers,\n      httpConfig: httpConfig\n    };\n  });\n})\n.config(['$qProvider', function ($qProvider) {\n    // $qProvider.errorOnUnhandledRejections(false);\n}]);\n;angular.module('app.frontend')\n  .config(function ($stateProvider, $urlRouterProvider, $locationProvider) {\n\n    $stateProvider\n      .state('base', {\n        abstract: true,\n      })\n\n      .state('home', {\n        url: '/',\n        parent: 'base',\n        views: {\n          'content@' : {\n            templateUrl: 'frontend/home.html',\n            controller: 'HomeCtrl'\n          }\n        }\n      })\n\n      // 404 Error\n      .state('404', {\n        parent: 'base',\n        views: {\n          'content@' : {\n            templateUrl: 'frontend/errors/404.html'\n          }\n        }\n      });\n\n      // Default fall back route\n      $urlRouterProvider.otherwise(function($injector, $location){\n         var state = $injector.get('$state');\n         state.go('404');\n         return $location.path();\n      });\n\n      // enable HTML5 Mode for SEO\n      $locationProvider.html5Mode(true);\n\n  });\n;class BaseCtrl {\n  constructor($rootScope, modelManager) {\n    // $rootScope.resetPasswordSubmit = function() {\n    //   var new_keys = Neeto.crypto.generateEncryptionKeysForUser($rootScope.resetData.password, $rootScope.resetData.email);\n    //   var data = _.clone($rootScope.resetData);\n    //   data.password = new_keys.pw;\n    //   data.password_confirmation = new_keys.pw;\n    //   $auth.updatePassword(data);\n    //   apiController.setMk(new_keys.mk);\n    // }\n  }\n}\n\nangular.module('app.frontend').controller('BaseCtrl', BaseCtrl);\n;angular.module('app.frontend')\n  .directive(\"editorSection\", function($timeout){\n    return {\n      restrict: 'E',\n      scope: {\n        save: \"&\",\n        remove: \"&\",\n        note: \"=\",\n        user: \"=\"\n      },\n      templateUrl: 'frontend/editor.html',\n      replace: true,\n      controller: 'EditorCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n\n        var handler = function(event) {\n          if (event.ctrlKey || event.metaKey) {\n              switch (String.fromCharCode(event.which).toLowerCase()) {\n              case 's':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.saveNote(event);\n                  });\n                  break;\n              case 'e':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.clickedEditNote();\n                  })\n                  break;\n              case 'm':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.toggleMarkdown();\n                  })\n                  break;\n              case 'o':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.toggleFullScreen();\n                  })\n                  break;\n              }\n          }\n        };\n\n        window.addEventListener('keydown', handler);\n\n        scope.$on('$destroy', function(){\n          window.removeEventListener('keydown', handler);\n        })\n\n        scope.$watch('ctrl.note', function(note, oldNote){\n          if(note) {\n            ctrl.setNote(note, oldNote);\n          } else {\n            ctrl.note = {};\n          }\n        });\n      }\n    }\n  })\n  .controller('EditorCtrl', function ($sce, $timeout, apiController, modelManager, markdownRenderer, $rootScope) {\n\n    this.setNote = function(note, oldNote) {\n      this.editorMode = 'edit';\n\n      if(note.content.text.length == 0 && note.dummy) {\n        this.focusTitle(100);\n      }\n\n      if(oldNote && oldNote != note) {\n        if(oldNote.hasChanges) {\n          this.save()(oldNote, null);\n        } else if(oldNote.dummy) {\n          this.remove()(oldNote);\n        }\n      }\n    }\n\n    this.onPreviewDoubleClick = function() {\n      this.editorMode = 'edit';\n      this.focusEditor(100);\n    }\n\n    this.focusEditor = function(delay) {\n      setTimeout(function(){\n        var element = document.getElementById(\"note-text-editor\");\n        element.focus();\n      }, delay)\n    }\n\n    this.focusTitle = function(delay) {\n      setTimeout(function(){\n        document.getElementById(\"note-title-editor\").focus();\n      }, delay)\n    }\n\n    this.clickedTextArea = function() {\n      this.showMenu = false;\n    }\n\n    this.renderedContent = function() {\n      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.content.text));\n    }\n\n    var statusTimeout;\n\n    this.saveNote = function($event) {\n      var note = this.note;\n      note.dummy = false;\n      this.save()(note, function(success){\n        if(success) {\n          apiController.clearDraft();\n\n          if(statusTimeout) $timeout.cancel(statusTimeout);\n          statusTimeout = $timeout(function(){\n            this.noteStatus = \"All changes saved\"\n          }.bind(this), 200)\n        }\n      }.bind(this));\n    }\n\n    this.saveTitle = function($event) {\n      $event.target.blur();\n      this.saveNote($event);\n      this.focusEditor();\n    }\n\n    var saveTimeout;\n    this.changesMade = function() {\n      this.note.hasChanges = true;\n      this.note.dummy = false;\n      if(this.user.uuid) {\n        // signed out users have local autosave, dont need draft saving\n        apiController.saveDraftToDisk(this.note);\n      }\n\n      if(saveTimeout) $timeout.cancel(saveTimeout);\n      if(statusTimeout) $timeout.cancel(statusTimeout);\n      saveTimeout = $timeout(function(){\n        this.noteStatus = \"Saving...\";\n        this.saveNote();\n      }.bind(this), 150)\n    }\n\n\n    this.contentChanged = function() {\n      this.changesMade();\n    }\n\n    this.nameChanged = function() {\n      this.changesMade();\n    }\n\n    this.onNameFocus = function() {\n      this.editingName = true;\n    }\n\n    this.onContentFocus = function() {\n      this.showSampler = false;\n      $rootScope.$broadcast(\"editorFocused\");\n      this.editingUrl = false;\n    }\n\n    this.onNameBlur = function() {\n      this.editingName = false;\n    }\n\n    this.toggleFullScreen = function() {\n      this.fullscreen = !this.fullscreen;\n      if(this.fullscreen) {\n        if(this.editorMode == 'edit') {\n          // refocus\n          this.focusEditor(0);\n        }\n      } else {\n\n      }\n    }\n\n    this.selectedMenuItem = function() {\n      this.showMenu = false;\n    }\n\n    this.toggleMarkdown = function() {\n      if(this.editorMode == 'preview') {\n        this.editorMode = 'edit';\n      } else {\n        this.editorMode = 'preview';\n      }\n    }\n\n    this.editUrlPressed = function() {\n      this.showMenu = false;\n      var url = this.publicUrlForNote(this.note);\n      url = url.replace(this.note.presentation_name, \"\");\n      this.url = {base: url, token : this.note.presentation_name};\n      this.editingUrl = true;\n    }\n\n    this.saveUrl = function($event) {\n      $event.target.blur();\n\n      var original = this.note.presentation_name;\n      this.note.presentation_name = this.url.token;\n      modelManager.addDirtyItems([this.note]);\n\n      apiController.sync(function(response){\n        if(!response) {\n          this.note.presentation_name = original;\n          this.url.token = original;\n          alert(\"This URL is not available.\");\n        } else {\n          this.editingUrl = false;\n        }\n      }.bind(this))\n    }\n\n    this.shareNote = function() {\n\n      function openInNewTab(url) {\n        var a = document.createElement(\"a\");\n        a.target = \"_blank\";\n        a.href = url;\n        a.click();\n    }\n\n      apiController.shareItem(this.note, function(note){\n        openInNewTab(this.publicUrlForNote(note));\n      }.bind(this))\n      this.showMenu = false;\n    }\n\n    this.unshareNote = function() {\n      apiController.unshareItem(this.note, function(note){\n\n      })\n      this.showMenu = false;\n    }\n\n    this.publicUrlForNote = function() {\n      return this.note.presentationURL();\n    }\n\n    this.clickedMenu = function() {\n      if(this.note.locked) {\n        alert(\"This note has been shared without an account, and can therefore not be changed.\")\n      } else {\n        this.showMenu = !this.showMenu;\n      }\n    }\n\n    this.deleteNote = function() {\n      apiController.clearDraft();\n      this.remove()(this.note);\n      this.showMenu = false;\n    }\n\n    this.clickedEditNote = function() {\n      this.editorMode = 'edit';\n      this.focusEditor(100);\n    }\n\n  });\n;angular.module('app.frontend')\n  .directive(\"header\", function(apiController, extensionManager){\n    return {\n      restrict: 'E',\n      scope: {\n        user: \"=\",\n        logout: \"&\"\n      },\n      templateUrl: 'frontend/header.html',\n      replace: true,\n      controller: 'HeaderCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$on(\"sync:updated_token\", function(){\n          ctrl.syncUpdated();\n        })\n      }\n    }\n  })\n  .controller('HeaderCtrl', function ($state, apiController, modelManager, serverSideValidation, $timeout, extensionManager) {\n\n    this.extensionManager = extensionManager;\n\n    this.changePasswordPressed = function() {\n      this.showNewPasswordForm = !this.showNewPasswordForm;\n    }\n\n    this.accountMenuPressed = function() {\n      this.serverData = {url: apiController.getServer()};\n      this.showAccountMenu = !this.showAccountMenu;\n      this.showFaq = false;\n      this.showNewPasswordForm = false;\n    }\n\n    this.toggleExtensions = function() {\n      this.showExtensionsMenu = !this.showExtensionsMenu;\n    }\n\n    this.toggleExtensionForm = function() {\n      this.newExtensionData = {};\n      this.showNewExtensionForm = !this.showNewExtensionForm;\n    }\n\n    this.submitNewExtensionForm = function() {\n      extensionManager.addExtension(this.newExtensionData.url)\n    }\n\n    this.selectedAction = function(action, extension) {\n      extensionManager.executeAction(action, extension, function(response){\n        apiController.sync(null);\n      })\n    }\n\n    this.changeServer = function() {\n      apiController.setServer(this.serverData.url, true);\n    }\n\n    this.signOutPressed = function() {\n      this.showAccountMenu = false;\n      this.logout()();\n      apiController.signout();\n      window.location.reload();\n    }\n\n    this.submitPasswordChange = function() {\n      this.passwordChangeData.status = \"Generating New Keys...\";\n\n      $timeout(function(){\n        if(data.password != data.password_confirmation) {\n          alert(\"Your new password does not match its confirmation.\");\n          return;\n        }\n\n        apiController.changePassword(this.user, this.passwordChangeData.current_password, this.passwordChangeData.new_password, function(response){\n\n        })\n\n      }.bind(this))\n    }\n\n    this.hasLocalData = function() {\n      return modelManager.filteredNotes.length > 0;\n    }\n\n    this.mergeLocalChanged = function() {\n      if(!this.user.shouldMerge) {\n        if(!confirm(\"Unchecking this option means any locally stored tags and notes you have now will be deleted. Are you sure you want to continue?\")) {\n          this.user.shouldMerge = true;\n        }\n      }\n    }\n\n    this.refreshData = function() {\n      this.isRefreshing = true;\n      apiController.sync(function(response){\n        $timeout(function(){\n          this.isRefreshing = false;\n        }.bind(this), 200)\n        if(!response) {\n          alert(\"There was an error syncing. Please try again. If all else fails, log out and log back in.\");\n        } else {\n          this.syncUpdated();\n        }\n      }.bind(this));\n    }\n\n    this.syncUpdated = function() {\n      this.lastSyncDate = new Date();\n    }\n\n    this.loginSubmitPressed = function() {\n      this.loginData.status = \"Generating Login Keys...\";\n      $timeout(function(){\n        apiController.login(this.loginData.email, this.loginData.user_password, function(response){\n          if(!response || response.error) {\n            var error = response ? response.error : {message: \"An unknown error occured.\"}\n            this.loginData.status = null;\n            alert(error.message);\n          } else {\n            this.onAuthSuccess(response.user);\n          }\n        }.bind(this));\n      }.bind(this))\n    }\n\n    this.submitRegistrationForm = function() {\n      this.loginData.status = \"Generating Account Keys...\";\n\n      $timeout(function(){\n        apiController.register(this.loginData.email, this.loginData.user_password, function(response){\n          if(!response || response.error) {\n            var error = response ? response.error : {message: \"An unknown error occured.\"}\n            this.loginData.status = null;\n            alert(error.message);\n          } else {\n            this.onAuthSuccess(response.user);\n          }\n        }.bind(this));\n      }.bind(this))\n    }\n\n    this.forgotPasswordSubmit = function() {\n      // $auth.requestPasswordReset(this.resetData)\n      //   .then(function(resp) {\n      //     this.resetData.response = \"Success\";\n      //     // handle success response\n      //   }.bind(this))\n      //   .catch(function(resp) {\n      //     // handle error response\n      //     this.resetData.response = \"Error\";\n      //   }.bind(this));\n    }\n\n    this.encryptionStatusForNotes = function() {\n      var allNotes = modelManager.filteredNotes;\n      var countEncrypted = 0;\n      allNotes.forEach(function(note){\n        if(note.encryptionEnabled()) {\n          countEncrypted++;\n        }\n      }.bind(this))\n\n      return countEncrypted + \"/\" + allNotes.length + \" notes encrypted\";\n    }\n\n    this.downloadDataArchive = function() {\n      var link = document.createElement('a');\n      link.setAttribute('download', 'notes.json');\n      link.href = apiController.itemsDataFile();\n      link.click();\n    }\n\n    this.importFileSelected = function(files) {\n      var file = files[0];\n      var reader = new FileReader();\n      reader.onload = function(e) {\n        apiController.importJSONData(e.target.result, function(success, response){\n          console.log(\"import response\", success, response);\n          if(success) {\n            // window.location.reload();\n          } else {\n            alert(\"There was an error importing your data. Please try again.\");\n          }\n        })\n      }\n      reader.readAsText(file);\n    }\n\n    this.onAuthSuccess = function(user) {\n      this.user.uuid = user.uuid;\n\n      // if(this.user.shouldMerge && this.hasLocalData()) {\n        // apiController.mergeLocalDataRemotely(this.user, function(){\n        //   window.location.reload();\n        // });\n      // } else {\n        window.location.reload();\n      // }\n\n      this.showLogin = false;\n      this.showRegistration = false;\n    }\n\n  });\n;angular.module('app.frontend')\n.controller('HomeCtrl', function ($scope, $rootScope, $timeout, apiController, modelManager) {\n    $rootScope.bodyClass = \"app-body-class\";\n\n    var onUserSet = function() {\n      apiController.setUser($scope.defaultUser);\n      $scope.allTag = new Tag({all: true});\n      $scope.allTag.content.title = \"All\";\n      $scope.tags = modelManager.tags;\n      $scope.allTag.notes = modelManager.notes;\n\n      apiController.sync(null);\n      // refresh every 30s\n      setInterval(function () {\n        apiController.sync(null);\n      }, 30000);\n    }\n\n    apiController.getCurrentUser(function(user){\n      if(user) {\n        $scope.defaultUser = user;\n        $rootScope.title = \"Notes — Standard Notes\";\n        onUserSet();\n      } else {\n        $scope.defaultUser = new User(apiController.loadLocalItemsAndUser());\n        onUserSet();\n      }\n    });\n\n    /*\n    Tags Ctrl Callbacks\n    */\n\n    $scope.updateAllTag = function() {\n      // $scope.allTag.notes = modelManager.notes;\n    }\n\n    $scope.tagsWillMakeSelection = function(tag) {\n      if(tag.all) {\n        $scope.updateAllTag();\n      }\n    }\n\n    $scope.tagsSelectionMade = function(tag) {\n      $scope.selectedTag = tag;\n    }\n\n    $scope.tagsAddNew = function(tag) {\n      modelManager.addTag(tag);\n    }\n\n    $scope.tagsSave = function(tag, callback) {\n      modelManager.addDirtyItems([tag]);\n      apiController.sync(callback);\n    }\n\n    /*\n    Called to update the tag of a note after drag and drop change\n    The note object is a copy of the original\n    */\n    $scope.tagsUpdateNoteTag = function(noteCopy, newTag, oldTag) {\n\n      var originalNote = _.find(modelManager.notes, {uuid: noteCopy.uuid});\n      if(!newTag.all) {\n        modelManager.addTagToNote(newTag, originalNote);\n      }\n\n      apiController.sync(function(){});\n    }\n\n    /*\n    Notes Ctrl Callbacks\n    */\n\n    $scope.notesRemoveTag = function(tag) {\n      var validNotes = Note.filterDummyNotes(tag.notes);\n      if(validNotes == 0) {\n        modelManager.deleteTag(tag);\n        // if no more notes, delete tag\n        apiController.deleteItem(tag, function(){\n          // force scope tags to update on sub directives\n          $scope.tags = [];\n          $timeout(function(){\n            $scope.tags = modelManager.tags;\n          })\n        });\n      } else {\n        alert(\"To delete this tag, remove all its notes first.\");\n      }\n    }\n\n    $scope.notesSelectionMade = function(note) {\n      $scope.selectedNote = note;\n    }\n\n    $scope.notesAddNew = function(note) {\n      modelManager.addNote(note);\n\n      if(!$scope.selectedTag.all) {\n        modelManager.addTagToNote($scope.selectedTag, note);\n        $scope.updateAllTag();\n      }\n    }\n\n    /*\n    Shared Callbacks\n    */\n\n    $scope.saveNote = function(note, callback) {\n      modelManager.addDirtyItems(note);\n\n      apiController.sync(function(){\n        note.hasChanges = false;\n\n        if(callback) {\n          callback(true);\n        }\n      })\n    }\n\n    $scope.deleteNote = function(note) {\n\n      modelManager.deleteNote(note);\n\n      if(note == $scope.selectedNote) {\n        $scope.selectedNote = null;\n      }\n\n      if(note.dummy) {\n        return;\n      }\n\n      apiController.deleteItem(note, function(success){})\n    }\n\n    /*\n    Header Ctrl Callbacks\n    */\n\n    $scope.headerLogout = function() {\n      $scope.defaultUser = apiController.loadLocalItemsAndUser();\n      $scope.tags = $scope.defaultUser.tags;\n    }\n\n\n});\n;angular.module('app.frontend')\n  .directive(\"notesSection\", function(){\n    return {\n      scope: {\n        addNew: \"&\",\n        selectionMade: \"&\",\n        remove: \"&\",\n        tag: \"=\",\n        user: \"=\",\n        removeTag: \"&\"\n      },\n\n      templateUrl: 'frontend/notes.html',\n      replace: true,\n      controller: 'NotesCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$watch('ctrl.tag', function(tag, oldTag){\n          if(tag) {\n            ctrl.tagDidChange(tag, oldTag);\n          }\n        });\n      }\n    }\n  })\n  .controller('NotesCtrl', function (apiController, $timeout, $rootScope) {\n\n    $rootScope.$on(\"editorFocused\", function(){\n      this.showMenu = false;\n    }.bind(this))\n\n    var isFirstLoad = true;\n\n    this.tagDidChange = function(tag, oldTag) {\n      this.showMenu = false;\n\n      if(this.selectedNote && this.selectedNote.dummy) {\n        _.remove(oldTag.notes, this.selectedNote);\n      }\n\n      this.noteFilter.text = \"\";\n\n      tag.notes.forEach(function(note){\n        note.visible = true;\n      })\n      this.selectFirstNote(false);\n\n      if(isFirstLoad) {\n        $timeout(function(){\n          var draft = apiController.getDraft();\n          if(draft) {\n            var note = draft;\n            this.selectNote(note);\n          } else {\n            this.createNewNote();\n            isFirstLoad = false;\n          }\n        }.bind(this))\n      } else if(tag.notes.length == 0) {\n          this.createNewNote();\n      }\n    }\n\n    this.selectedTagDelete = function() {\n      this.showMenu = false;\n      this.removeTag()(this.tag);\n    }\n\n    this.selectedTagShare = function() {\n      this.showMenu = false;\n\n      if(!this.user.uuid) {\n        alert(\"You must be signed in to share a tag.\");\n        return;\n      }\n\n      if(this.tag.all) {\n        alert(\"You cannot share the 'All' tag.\");\n        return;\n      }\n\n      apiController.shareItem(this.tag, function(response){})\n    }\n\n    this.selectedTagUnshare = function() {\n      this.showMenu = false;\n      apiController.unshareItem(this.tag, function(response){\n\n      })\n    }\n\n    this.selectFirstNote = function(createNew) {\n      var visibleNotes = this.tag.notes.filter(function(note){\n        return note.visible;\n      });\n\n      if(visibleNotes.length > 0) {\n        this.selectNote(visibleNotes[0]);\n      } else if(createNew) {\n        this.createNewNote();\n      }\n    }\n\n    this.selectNote = function(note) {\n      this.selectedNote = note;\n      this.selectionMade()(note);\n    }\n\n    this.createNewNote = function() {\n      var title = \"New Note\" + (this.tag.notes ? (\" \" + (this.tag.notes.length + 1)) : \"\");\n      this.newNote = new Note({dummy: true});\n      this.newNote.content.title = title;\n      this.selectNote(this.newNote);\n      this.addNew()(this.newNote);\n    }\n\n    this.noteFilter = {text : ''};\n\n    this.filterNotes = function(note) {\n      if(this.noteFilter.text.length == 0) {\n        note.visible = true;\n      } else {\n        note.visible = note.content.title.toLowerCase().includes(this.noteFilter.text) || note.content.text.toLowerCase().includes(this.noteFilter.text);\n      }\n      return note.visible;\n    }.bind(this)\n\n    this.filterTextChanged = function() {\n      $timeout(function(){\n        if(!this.selectedNote.visible) {\n          this.selectFirstNote(false);\n        }\n      }.bind(this), 100)\n    }\n  });\n;angular.module('app.frontend')\n  .directive(\"tagsSection\", function(){\n    return {\n      restrict: 'E',\n      scope: {\n        addNew: \"&\",\n        selectionMade: \"&\",\n        willSelect: \"&\",\n        save: \"&\",\n        tags: \"=\",\n        allTag: \"=\",\n        user: \"=\",\n        updateNoteTag: \"&\"\n      },\n      templateUrl: 'frontend/tags.html',\n      replace: true,\n      controller: 'TagsCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$watch('ctrl.tags', function(newTags){\n          if(newTags) {\n            ctrl.setTags(newTags);\n          }\n        });\n\n        scope.$watch('ctrl.allTag', function(allTag){\n          if(allTag) {\n            ctrl.setAllTag(allTag);\n          }\n        });\n      }\n    }\n  })\n  .controller('TagsCtrl', function () {\n\n    var initialLoad = true;\n\n    this.setAllTag = function(allTag) {\n      this.selectTag(this.allTag);\n    }\n\n    this.setTags = function(tags) {\n      if(initialLoad) {\n          initialLoad = false;\n          this.selectTag(this.allTag);\n      } else {\n        if(tags && tags.length > 0) {\n          this.selectTag(tags[0]);\n        }\n      }\n    }\n\n    this.selectTag = function(tag) {\n      this.willSelect()(tag);\n      this.selectedTag = tag;\n      this.selectionMade()(tag);\n    }\n\n    this.clickedAddNewTag = function() {\n      if(this.editingTag) {\n        return;\n      }\n      \n      this.newTag = new Tag();\n      this.selectedTag = this.newTag;\n      this.editingTag = this.newTag;\n      this.addNew()(this.newTag);\n    }\n\n    var originalTagName = \"\";\n    this.onTagTitleFocus = function(tag) {\n      originalTagName = tag.content.title;\n    }\n\n    this.tagTitleDidChange = function(tag) {\n      this.editingTag = tag;\n    }\n\n    this.saveTag = function($event, tag) {\n      this.editingTag = null;\n      if(tag.content.title.length == 0) {\n        tag.content.title = originalTagName;\n        originalTagName = \"\";\n        return;\n      }\n\n      $event.target.blur();\n      if(!tag.content.title || tag.content.title.length == 0) {\n          return;\n      }\n\n      this.save()(tag, function(savedTag){\n        // _.merge(tag, savedTag);\n        this.selectTag(tag);\n        this.newTag = null;\n      }.bind(this));\n    }\n\n    this.noteCount = function(tag) {\n      var validNotes = Note.filterDummyNotes(tag.notes);\n      return validNotes.length;\n    }\n\n    this.handleDrop = function(e, newTag, note) {\n      this.updateNoteTag()(note, newTag, this.selectedTag);\n    }.bind(this)\n\n\n  });\n;angular.module('app.frontend')\n.controller('UsernameModalCtrl', function ($scope, apiController, Restangular, user, callback, $timeout) {\n  $scope.formData = {};\n\n  $scope.saveUsername = function() {\n    apiController.setUsername(user, $scope.formData.username, function(response){\n      var username = response.username;\n      user.username = username;\n      callback(username);\n      $scope.closeThisDialog();\n    })\n  }\n});\n;class Item {\n  constructor(json_obj) {\n\n    var content;\n\n    Object.defineProperty(this, \"content\", {\n      get: function() {\n        return content;\n      },\n      set: function(value) {\n        var finalValue = value;\n\n        if(typeof value === 'string') {\n          try {\n            var decodedValue = JSON.parse(value);\n            finalValue = decodedValue;\n          }\n          catch(e) {\n            finalValue = value;\n          }\n        }\n        content = finalValue;\n      },\n      enumerable: true,\n    });\n\n    _.merge(this, json_obj);\n\n    if(this.created_at) {\n      this.created_at = new Date(this.created_at);\n      this.updated_at = new Date(this.updated_at);\n    } else {\n      this.created_at = new Date();\n      this.updated_at = new Date();\n    }\n\n    if(!this.uuid) {\n      this.uuid = Neeto.crypto.generateUUID();\n    }\n\n    this.setContentRaw = function(rawContent) {\n      content = rawContent;\n    }\n\n    if(!this.content) {\n      this.content = {};\n    }\n\n    if(!this.content.references) {\n      this.content.references = [];\n    }\n  }\n\n  static sortItemsByDate(items) {\n    items.sort(function(a,b){\n      return new Date(b.created_at) - new Date(a.created_at);\n    });\n  }\n\n  addReference(reference) {\n    this.content.references.push(reference);\n    this.content.references = _.uniq(this.content.references);\n    this.updateReferencesLocalMapping();\n  }\n\n  removeReference(reference) {\n    _.remove(this.content.references, _.find(this.content.references, {uuid: reference.uuid}));\n    this.updateReferencesLocalMapping();\n  }\n\n  referencesMatchingContentType(contentType) {\n    return this.content.references.filter(function(reference){\n      return reference.content_type == contentType;\n    });\n  }\n\n  mergeMetadataFromItem(item) {\n    _.merge(this, _.omit(item, [\"content\"]));\n  }\n\n  updateReferencesLocalMapping() {\n    // should be overriden to manage local properties\n  }\n\n  referencesAffectedBySharingChange() {\n    // should be overriden to determine which references should be decrypted/encrypted\n    return null;\n  }\n\n  isPublic() {\n    return this.presentation_name;\n  }\n\n  isEncrypted() {\n    return this.encryptionEnabled() && typeof this.content === 'string' ? true : false;\n  }\n\n  encryptionEnabled() {\n    return this.enc_item_key;\n  }\n\n  presentationURL() {\n    return this.presentation_url;\n  }\n\n}\n;class Extension extends Item {\n\n  constructor(json_obj) {\n    super(json_obj);\n\n    if(!this.notes) {\n      this.notes = [];\n    }\n\n    if(!this.content.title) {\n      this.content.title = \"\";\n    }\n  }\n\n  get content_type() {\n    return \"Tag\";\n  }\n\n  updateReferencesLocalMapping() {\n    super.updateReferencesLocalMapping();\n    this.notes = this.referencesMatchingContentType(\"Note\");\n  }\n\n  referencesAffectedBySharingChange() {\n    return this.referencesMatchingContentType(\"Note\");\n  }\n}\n;class Note extends Item {\n\n  constructor(json_obj) {\n    super(json_obj);\n\n    if(!this.tags) {\n      this.tags = [];\n    }\n\n    if(!this.content.title) {\n      this.content.title = \"\";\n    }\n\n    if(!this.content.text) {\n      this.content.text = \"\";\n    }\n  }\n\n  static filterDummyNotes(notes) {\n    var filtered = notes.filter(function(note){return note.dummy == false || note.dummy == null});\n    return filtered;\n  }\n\n  updateReferencesLocalMapping() {\n    super.updateReferencesLocalMapping();\n    this.tags = this.referencesMatchingContentType(\"Tag\");\n  }\n\n  referencesAffectedBySharingChange() {\n    return super.referencesAffectedBySharingChange();\n  }\n\n  get hasOnePublicTag() {\n    for (var tag of this.tags) {\n      if(tag.isPublic()) {\n        return true\n      }\n    }\n    return false;\n  }\n\n  toJSON() {\n    return {uuid: this.uuid}\n  }\n\n  isSharedIndividually() {\n    return this.presentation_name;\n  }\n\n  isPublic() {\n    return super.isPublic() || this.hasOnePublicTag;\n  }\n\n  get content_type() {\n    return \"Note\";\n  }\n}\n;class Tag extends Item {\n\n  constructor(json_obj) {\n    super(json_obj);\n\n    if(!this.notes) {\n      this.notes = [];\n    }\n\n    if(!this.content.title) {\n      this.content.title = \"\";\n    }\n  }\n\n  get content_type() {\n    return \"Tag\";\n  }\n\n  updateReferencesLocalMapping() {\n    super.updateReferencesLocalMapping();\n    this.notes = this.referencesMatchingContentType(\"Note\");\n  }\n\n  referencesAffectedBySharingChange() {\n    return this.referencesMatchingContentType(\"Note\");\n  }\n}\n;class User {\n  constructor(json_obj) {\n    _.merge(this, json_obj);\n  }\n}\n;angular.module('app.frontend')\n  .provider('apiController', function () {\n\n    function domainName()  {\n      var domain_comps = location.hostname.split(\".\");\n      var domain = domain_comps[domain_comps.length - 2] + \".\" + domain_comps[domain_comps.length - 1];\n      return domain;\n    }\n\n    var url;\n\n    this.defaultServerURL = function() {\n      if(!url) {\n        url = localStorage.getItem(\"server\");\n        if(!url) {\n          url = \"https://n3.standardnotes.org\";\n        }\n      }\n      return url;\n    }\n\n\n    this.$get = function($rootScope, Restangular, modelManager, ngDialog) {\n        return new ApiController($rootScope, Restangular, modelManager, ngDialog);\n    }\n\n    function ApiController($rootScope, Restangular, modelManager, ngDialog) {\n\n      this.setUser = function(user) {\n        this.user = user;\n      }\n\n      /*\n      Config\n      */\n\n      this.getServer = function() {\n        if(!url) {\n          url = localStorage.getItem(\"server\");\n          if(!url) {\n            url = \"https://n3.standardnotes.org\";\n            this.setServer(url);\n          }\n        }\n        return url;\n      }\n\n      this.setServer = function(url, refresh) {\n        localStorage.setItem(\"server\", url);\n        if(refresh) {\n          window.location.reload();\n        }\n      }\n\n\n      /*\n      Auth\n      */\n\n      this.getAuthParamsForEmail = function(email, callback) {\n        var request = Restangular.one(\"auth\", \"params\");\n        request.get({email: email}).then(function(response){\n          callback(response.plain());\n        })\n        .catch(function(response){\n          console.log(\"Error getting current user\", response);\n          callback(response.data);\n        })\n      }\n\n      this.getCurrentUser = function(callback) {\n        if(!localStorage.getItem(\"jwt\")) {\n          callback(null);\n          return;\n        }\n        Restangular.one(\"users/current\").get().then(function(response){\n          var user = response.plain();\n          callback(user);\n        }.bind(this))\n        .catch(function(response){\n          console.log(\"Error getting current user\", response);\n          callback(response.data);\n        })\n      }\n\n      this.login = function(email, password, callback) {\n        this.getAuthParamsForEmail(email, function(authParams){\n          if(!authParams) {\n            callback(null);\n            return;\n          }\n          Neeto.crypto.computeEncryptionKeysForUser(_.merge({email: email, password: password}, authParams), function(keys){\n            this.setMk(keys.mk);\n            var request = Restangular.one(\"auth/sign_in\");\n            var params = {password: keys.pw, email: email};\n            _.merge(request, params);\n            request.post().then(function(response){\n              localStorage.setItem(\"jwt\", response.token);\n              callback(response);\n            })\n            .catch(function(response){\n              callback(response.data);\n            })\n          }.bind(this));\n        }.bind(this))\n      }\n\n      this.register = function(email, password, callback) {\n        Neeto.crypto.generateInitialEncryptionKeysForUser({password: password, email: email}, function(keys){\n          this.setMk(keys.mk);\n          keys.mk = null;\n          var request = Restangular.one(\"auth\");\n          var params = _.merge({password: keys.pw, email: email}, keys);\n          _.merge(request, params);\n          request.post().then(function(response){\n            localStorage.setItem(\"jwt\", response.token);\n            callback(response);\n          })\n          .catch(function(response){\n            callback(response.data);\n          })\n        }.bind(this));\n      }\n\n      this.changePassword = function(user, current_password, new_password) {\n          this.getAuthParamsForEmail(email, function(authParams){\n            if(!authParams) {\n              callback(null);\n              return;\n            }\n            Neeto.crypto.computeEncryptionKeysForUser(_.merge({password: current_password, email: user.email}, authParams), function(currentKeys) {\n              Neeto.crypto.computeEncryptionKeysForUser(_.merge({password: new_password, email: user.email}, authParams), function(newKeys){\n                var data = {};\n                data.current_password = currentKeys.pw;\n                data.password = newKeys.pw;\n                data.password_confirmation = newKeys.pw;\n\n                var user = this.user;\n\n                this._performPasswordChange(currentKeys, newKeys, function(response){\n                  if(response && !response.error) {\n                    // this.showNewPasswordForm = false;\n                    // reencrypt data with new mk\n                    this.reencryptAllItemsAndSave(user, newKeys.mk, currentKeys.mk, function(success){\n                      if(success) {\n                        this.setMk(newKeys.mk);\n                        alert(\"Your password has been changed and your data re-encrypted.\");\n                      } else {\n                        // rollback password\n                        this._performPasswordChange(newKeys, currentKeys, function(response){\n                          alert(\"There was an error changing your password. Your password has been rolled back.\");\n                          window.location.reload();\n                        })\n                      }\n                    }.bind(this));\n                  } else {\n                    // this.showNewPasswordForm = false;\n                    alert(\"There was an error changing your password. Please try again.\");\n                  }\n                }.bind(this))\n              }.bind(this));\n            }.bind(this));\n          }.bind(this));\n      }\n\n      this._performPasswordChange = function(email, current_keys, new_keys, callback) {\n        var request = Restangular.one(\"auth\");\n        var params = {password: new_keys.pw, password_confirmation: new_keys.pw, current_password: current_keys.pw, email: email};\n        _.merge(request, params);\n        request.patch().then(function(response){\n          callback(response);\n        })\n      }\n\n\n      /*\n      User\n      */\n\n      this.setUsername = function(user, username, callback) {\n        var request = Restangular.one(\"users\", user.uuid);\n        request.username = username;\n        request.patch().then(function(response){\n          callback(response.plain());\n        })\n      }\n\n      /*\n      Ensures that if encryption is disabled, all local items are uncrypted,\n      and that if it's enabled, that all local items are encrypted\n      */\n      this.verifyEncryptionStatusOfAllItems = function(user, callback) {\n        var allItems = user.filteredItems();\n        var itemsNeedingUpdate = [];\n        allItems.forEach(function(item){\n          if(!item.isPublic()) {\n            if(item.encryptionEnabled() && !item.isEncrypted()) {\n              itemsNeedingUpdate.push(item);\n            }\n          } else {\n            if(item.isEncrypted()) {\n              itemsNeedingUpdate.push(item);\n            }\n          }\n        }.bind(this))\n\n        if(itemsNeedingUpdate.length > 0) {\n          console.log(\"verifying encryption, items need updating\", itemsNeedingUpdate);\n          this.saveBatchItems(user, itemsNeedingUpdate, callback)\n        }\n      }\n\n\n\n      /*\n      Items\n      */\n\n      this.syncWithOptions = function(callback, options = {}) {\n        if(!this.user.uuid) {\n          this.writeItemsToLocalStorage();\n          modelManager.clearDirtyItems();\n          if(callback) {\n            callback();\n          }\n          return;\n        }\n\n        var dirtyItems = modelManager.dirtyItems;\n        var request = Restangular.one(\"items/sync\");\n        request.items = _.map(dirtyItems, function(item){\n          return this.createRequestParamsForItem(item, options.additionalFields);\n        }.bind(this));\n\n        if(this.syncToken) {\n          request.sync_token = this.syncToken;\n        }\n\n        request.post().then(function(response) {\n          modelManager.clearDirtyItems();\n          this.syncToken = response.sync_token;\n          $rootScope.$broadcast(\"sync:updated_token\", this.syncToken);\n\n          this.handleItemsResponse(response.retrieved_items, null);\n          // merge only metadata for saved items\n          var omitFields = [\"content\", \"enc_item_key\", \"auth_hash\"];\n          this.handleItemsResponse(response.saved_items, omitFields);\n\n          if(callback) {\n            callback(response);\n          }\n        }.bind(this))\n        .catch(function(response){\n          console.log(\"Sync error: \", response);\n          callback(null);\n        })\n      }\n\n      this.sync = function(callback) {\n        this.syncWithOptions(callback, undefined);\n      }\n\n      this.handleItemsResponse = function(responseItems, omitFields) {\n        this.decryptItems(responseItems);\n        return modelManager.mapResponseItemsToLocalModelsOmittingFields(responseItems, omitFields);\n      }\n\n      this.createRequestParamsForItem = function(item, additionalFields) {\n        return this.paramsForItem(item, !item.isPublic(), additionalFields, false);\n      }\n\n      this.paramsForItem = function(item, encrypted, additionalFields, forExportFile) {\n        var itemCopy = _.cloneDeep(item);\n\n        var params = {uuid: item.uuid, content_type: item.content_type, presentation_name: item.presentation_name, deleted: item.deleted};\n\n        itemCopy.content.references = _.map(itemCopy.content.references, function(reference){\n          return {uuid: reference.uuid, content_type: reference.content_type};\n        })\n\n        if(encrypted) {\n          this.encryptSingleItem(itemCopy, this.retrieveMk());\n          params.content = itemCopy.content;\n          params.enc_item_key = itemCopy.enc_item_key;\n          params.auth_hash = itemCopy.auth_hash;\n        }\n        else {\n          params.content = forExportFile ? itemCopy.content : \"000\" + Neeto.crypto.base64(JSON.stringify(itemCopy.content));\n          if(!forExportFile) {\n            params.enc_item_key = null;\n            params.auth_hash = null;\n          }\n        }\n\n        if(additionalFields) {\n          _.merge(params, _.pick(item, additionalFields));\n        }\n\n        return params;\n      }\n\n\n      this.deleteItem = function(item, callback) {\n        item.deleted = true;\n        modelManager.addDirtyItems([item]);\n        this.sync(callback);\n      }\n\n      this.shareItem = function(item, callback) {\n        if(!this.user.uuid) {\n          alert(\"You must be signed in to share.\");\n          return;\n        }\n\n        var shareFn = function() {\n          item.presentation_name = \"_auto_\";\n          var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);\n          modelManager.addDirtyItems(needsUpdate);\n          this.sync();\n        }.bind(this)\n\n        if(!this.user.username) {\n          ngDialog.open({\n            template: 'frontend/modals/username.html',\n            controller: 'UsernameModalCtrl',\n            resolve: {\n              user: function() {return this.user}.bind(this),\n              callback: function() {\n                return shareFn;\n              }\n            },\n            className: 'ngdialog-theme-default',\n            disableAnimation: true\n          });\n        } else {\n          shareFn();\n        }\n      }\n\n      this.unshareItem = function(item, callback) {\n        item.presentation_name = null;\n        var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);\n        modelManager.addDirtyItems(needsUpdate);\n        this.sync(null);\n      }\n\n      /*\n      Import\n      */\n\n      this.importJSONData = function(jsonString, callback) {\n        var data = JSON.parse(jsonString);\n        modelManager.mapResponseItemsToLocalModels(data.items);\n        modelManager.addDirtyItems(modelManager.items);\n        this.syncWithOptions(callback, {additionalFields: [\"created_at\", \"updated_at\"]});\n      }\n\n      /*\n      Export\n      */\n\n      this.itemsDataFile = function() {\n        var textFile = null;\n        var makeTextFile = function (text) {\n          var data = new Blob([text], {type: 'text/json'});\n\n          // If we are replacing a previously generated file we need to\n          // manually revoke the object URL to avoid memory leaks.\n          if (textFile !== null) {\n            window.URL.revokeObjectURL(textFile);\n          }\n\n          textFile = window.URL.createObjectURL(data);\n\n          // returns a URL you can use as a href\n          return textFile;\n        }.bind(this);\n\n        var items = _.map(modelManager.items, function(item){\n          return _.omit(this.paramsForItem(item, false, [\"created_at\", \"updated_at\"], true), [\"deleted\"]);\n        }.bind(this));\n\n        var data = {\n          items: items\n        }\n\n        return makeTextFile(JSON.stringify(data, null, 2 /* pretty print */));\n      }\n\n\n\n      /*\n      Merging\n      */\n      this.mergeLocalDataRemotely = function(user, callback) {\n        var request = Restangular.one(\"users\", user.uuid).one(\"merge\");\n        var tags = user.tags;\n        request.items = user.items;\n        request.items.forEach(function(item){\n          if(item.tag_id) {\n            var tag = tags.filter(function(tag){return tag.uuid == item.tag_id})[0];\n            item.tag_name = tag.content.title;\n          }\n        })\n        request.post().then(function(response){\n          callback();\n          localStorage.removeItem('user');\n        })\n      }\n\n\n\n\n\n\n      this.staticifyObject = function(object) {\n        return JSON.parse(JSON.stringify(object));\n      }\n\n      this.writeItemsToLocalStorage = function() {\n        var items = _.map(modelManager.items, function(item){\n          return this.paramsForItem(item, false, [\"created_at\", \"updated_at\"], true)\n        }.bind(this));\n        this.writeToLocalStorage('items', items);\n      }\n\n      this.writeToLocalStorage = function(key, value) {\n        localStorage.setItem(key, angular.toJson(value));\n      }\n\n      this.loadLocalItemsAndUser = function() {\n        var user = {};\n        var items = JSON.parse(localStorage.getItem('items')) || [];\n        items = modelManager.mapResponseItemsToLocalModels(items);\n        Item.sortItemsByDate(items);\n        user.items = items;\n        user.shouldMerge = true;\n        return user;\n      }\n\n      /*\n      Drafts\n      */\n\n      this.saveDraftToDisk = function(draft) {\n        localStorage.setItem(\"draft\", JSON.stringify(draft));\n      }\n\n      this.clearDraft = function() {\n        localStorage.removeItem(\"draft\");\n      }\n\n      this.getDraft = function() {\n        var draftString = localStorage.getItem(\"draft\");\n        if(!draftString || draftString == 'undefined') {\n          return null;\n        }\n        return new Note(JSON.parse(draftString));\n      }\n\n\n      /*\n      Encrpytion\n      */\n\n      this.retrieveMk = function() {\n        if(!this.mk) {\n          this.mk = localStorage.getItem(\"mk\");\n        }\n        return this.mk;\n      }\n\n      this.setMk = function(mk) {\n        localStorage.setItem('mk', mk);\n      }\n\n      this.signout = function() {\n        localStorage.removeItem(\"jwt\");\n        localStorage.removeItem(\"mk\");\n      }\n\n      this.encryptSingleItem = function(item, masterKey) {\n        var item_key = null;\n        if(item.enc_item_key) {\n          item_key = Neeto.crypto.decryptText(item.enc_item_key, masterKey);\n        } else {\n          item_key = Neeto.crypto.generateRandomEncryptionKey();\n          item.enc_item_key = Neeto.crypto.encryptText(item_key, masterKey);\n        }\n\n        var ek = Neeto.crypto.firstHalfOfKey(item_key);\n        var ak = Neeto.crypto.secondHalfOfKey(item_key);\n        var encryptedContent = \"001\" + Neeto.crypto.encryptText(JSON.stringify(item.content), ek);\n        var authHash = Neeto.crypto.hmac256(encryptedContent, ak);\n\n        item.content = encryptedContent;\n        item.auth_hash = authHash;\n        item.local_encryption_scheme = \"1.0\";\n      }\n\n       this.decryptSingleItem = function(item, masterKey) {\n         var item_key = Neeto.crypto.decryptText(item.enc_item_key, masterKey);\n\n         var ek = Neeto.crypto.firstHalfOfKey(item_key);\n         var ak = Neeto.crypto.secondHalfOfKey(item_key);\n         var authHash = Neeto.crypto.hmac256(item.content, ak);\n         if(authHash !== item.auth_hash || !item.auth_hash) {\n           console.log(\"Authentication hash does not match.\")\n           return;\n         }\n\n         var content = Neeto.crypto.decryptText(item.content.substring(3, item.content.length), ek);\n         item.content = content;\n       }\n\n       this.decryptItems = function(items) {\n         var masterKey = this.retrieveMk();\n         for (var item of items) {\n           if(item.deleted == true) {\n             continue;\n           }\n\n           if(item.content.substring(0, 3) == \"001\" && item.enc_item_key) {\n             // is encrypted\n             this.decryptSingleItem(item, masterKey);\n           } else {\n             // is base64 encoded\n             item.content = Neeto.crypto.base64Decode(item.content.substring(3, item.content.length))\n           }\n         }\n       }\n\n       this.reencryptAllItemsAndSave = function(user, newMasterKey, oldMasterKey, callback) {\n         var items = user.filteredItems();\n         items.forEach(function(item){\n           if(item.content.substring(0, 3) == \"001\" && item.enc_item_key) {\n             // first decrypt item_key with old key\n             var item_key = Neeto.crypto.decryptText(item.enc_item_key, oldMasterKey);\n             // now encrypt item_key with new key\n             item.enc_item_key = Neeto.crypto.encryptText(item_key, newMasterKey);\n           }\n         });\n\n         this.saveBatchItems(user, items, function(success) {\n           callback(success);\n         }.bind(this));\n       }\n     }\n});\n;angular\n  .module('app.frontend')\n  .directive('mbAutofocus', ['$timeout', function($timeout) {\n    return {\n      restrict: 'A',\n      scope: {\n        shouldFocus: \"=\"\n      },\n      link : function($scope, $element) {\n        $timeout(function() {\n          if($scope.shouldFocus) {\n            $element[0].focus();\n          }\n        });\n      }\n    }\n  }]);\n;angular\n  .module('app.frontend')\n  .directive('draggable', function() {\n  return  {\n    scope: {\n      note: \"=\"\n    },\n    link: function(scope, element) {\n      // this gives us the native JS object\n      var el = element[0];\n\n      el.draggable = true;\n\n      el.addEventListener(\n        'dragstart',\n        function(e) {\n          e.dataTransfer.effectAllowed = 'move';\n          e.dataTransfer.setData('Note', JSON.stringify(scope.note));\n          this.classList.add('drag');\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'dragend',\n        function(e) {\n          this.classList.remove('drag');\n          return false;\n        },\n        false\n      );\n    }\n  }\n});\n\nangular\n  .module('app.frontend')\n  .directive('droppable', function() {\n  return {\n    scope: {\n      drop: '&',\n      bin: '=',\n      tag: \"=\"\n    },\n    link: function(scope, element) {\n      // again we need the native object\n      var el = element[0];\n\n      el.addEventListener(\n        'dragover',\n        function(e) {\n          e.dataTransfer.dropEffect = 'move';\n          // allows us to drop\n          if (e.preventDefault) e.preventDefault();\n          this.classList.add('over');\n          return false;\n        },\n        false\n      );\n\n      var counter = 0;\n\n      el.addEventListener(\n        'dragenter',\n        function(e) {\n          counter++;\n          this.classList.add('over');\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'dragleave',\n        function(e) {\n          counter--;\n           if (counter === 0) {\n             this.classList.remove('over');\n           }\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'drop',\n        function(e) {\n          // Stops some browsers from redirecting.\n          if (e.stopPropagation) e.stopPropagation();\n\n          this.classList.remove('over');\n\n          var binId = this.uuid;\n          var note = new Note(JSON.parse(e.dataTransfer.getData('Note')));\n          scope.$apply(function(scope) {\n            var fn = scope.drop();\n            if ('undefined' !== typeof fn) {\n              fn(e, scope.tag, note);\n            }\n          });\n\n          return false;\n        },\n        false\n      );\n    }\n  }\n});\n;angular\n  .module('app.frontend')\n  .directive('fileChange', function() {\n    return {\n     restrict: 'A',\n     scope: {\n       handler: '&'\n     },\n     link: function (scope, element) {\n      element.on('change', function (event) {\n        scope.$apply(function(){\n          scope.handler({files: event.target.files});\n        });\n      });\n     }\n    };\n});\n;angular\n  .module('app.frontend')\n  .directive('lowercase', function() {\n    return {\n      require: 'ngModel',\n      link: function(scope, element, attrs, modelCtrl) {\n        var lowercase = function(inputValue) {\n          if (inputValue == undefined) inputValue = '';\n          var lowercased = inputValue.toLowerCase();\n          if (lowercased !== inputValue) {\n            modelCtrl.$setViewValue(lowercased);\n            modelCtrl.$render();\n          }\n          return lowercased;\n        }\n        modelCtrl.$parsers.push(lowercase);\n        lowercase(scope[attrs.ngModel]);\n      }\n    };\n  });\n;angular\n  .module('app.frontend')\n  .directive('selectOnClick', ['$window', function ($window) {\n    return {\n        restrict: 'A',\n        link: function (scope, element, attrs) {\n            element.on('focus', function () {\n                if (!$window.getSelection().toString()) {\n                    // Required for mobile Safari\n                    this.setSelectionRange(0, this.value.length)\n                }\n            });\n        }\n    };\n}]);\n;angular\n  .module('app.frontend')\n  .directive('note', function($timeout) {\n    return {\n      restrict: 'E',\n      controller: 'SingleNoteCtrl',\n      templateUrl: \"frontend/directives/note.html\",\n      scope: {\n        note: \"=\"\n      },\n    }\n  })\n  .controller('SingleNoteCtrl', function ($rootScope, $scope, $state, markdownRenderer) {\n    $scope.renderedContent = function() {\n      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText($scope.note.text));\n    }\n  });\n;/**\n * AngularJS directive that simulates the effect of typing on a text editor - with a blinking cursor.\n * This directive works as an attribute to any HTML element, and it changes the speed/delay of its animation.\n *\n * There's also a simple less file included for basic styling of the dialog, which can be overridden.\n * The config object also lets the user define custom CSS classes for the modal.\n *\n *  How to use:\n *\n *  Just add the desired text to the 'text' attribute of the element and the directive takes care of the rest.\n *  The 'text' attribute can be a single string or an array of string. In case an array is passed, the string\n *  on each index is erased so the next item can be printed. When the last index is reached, that string stays\n *  on the screen. (So if you want to erase the last string, just push an empty string to the end of the array)\n *\n * These are the optional preferences:\n *  - initial delay: set an 'initial-delay' attribute for the element\n *  - type delay: set a 'type-delay' attribute for the element\n *  - erase delay: set a 'erase-delay' attribute for the element\n *  - specify cursor : set a 'cursor' attribute for the element, specifying which cursor to use\n *  - turn off cursor blinking: set the 'blink-cursor' attribute  to \"false\"\n *  - cursor blinking speed: set a 'blink-delay' attribute for the element\n *  - scope callback: pass the desired scope callback as the 'callback-fn' attribute of the element\n *\n * Note:\n * Each time/delay value should be set either on seconds (1s) or milliseconds (1000)\n *\n * Dependencies:\n * The directive needs the css file provided in order to replicate the cursor blinking effect.\n */\n\n\nangular\n    .module('app.frontend').directive('typewrite', ['$timeout', function ($timeout) {\n        function linkFunction($scope, $element, $attrs) {\n            var timer = null,\n                initialDelay = $attrs.initialDelay ? getTypeDelay($attrs.initialDelay) : 200,\n                typeDelay = $attrs.typeDelay || 200,\n                eraseDelay = $attrs.eraseDelay || typeDelay / 2,\n                blinkDelay = $attrs.blinkDelay ? getAnimationDelay($attrs.blinkDelay) : false,\n                cursor = $attrs.cursor || '|',\n                blinkCursor = typeof $attrs.blinkCursor !== 'undefined' ? $attrs.blinkCursor === 'true' : true,\n                currentText,\n                textArray,\n                running,\n                auxStyle;\n\n\n\n            if ($scope.text) {\n                if ($scope.text instanceof Array) {\n                    textArray = $scope.text;\n                    currentText = textArray[0];\n                } else {\n                    currentText = $scope.text;\n                }\n            }\n            if (typeof $scope.start === 'undefined' || $scope.start) {\n                typewrite();\n            }\n\n            function typewrite() {\n                timer = $timeout(function () {\n                    updateIt($element, 0, 0, currentText);\n                }, initialDelay);\n            }\n\n            function updateIt(element, charIndex, arrIndex, text) {\n                if (charIndex <= text.length) {\n                    updateValue(element, text.substring(0, charIndex) + cursor);\n                    charIndex++;\n                    timer = $timeout(function () {\n                        updateIt(element, charIndex, arrIndex, text);\n                    }, typeDelay);\n                    return;\n                } else {\n                    charIndex--;\n\n                    if($scope.iterationCallback) {\n                      $scope.iterationCallback()(arrIndex);\n                    }\n\n                    // check if it's an array\n                    if (textArray && arrIndex < textArray.length - 1) {\n                        timer = $timeout(function () {\n                            cleanAndRestart(element, charIndex, arrIndex, textArray[arrIndex]);\n                        }, $scope.iterationDelay);\n                    } else {\n                        if ($scope.callbackFn) {\n                            $scope.callbackFn();\n                        }\n                        blinkIt(element, charIndex, currentText);\n                    }\n                }\n            }\n\n            function blinkIt(element, charIndex) {\n                var text = element.text().substring(0, element.text().length - 1);\n                if (blinkCursor) {\n                    if (blinkDelay) {\n                        auxStyle = '-webkit-animation:blink-it steps(1) ' + blinkDelay + ' infinite;-moz-animation:blink-it steps(1) ' + blinkDelay + ' infinite ' +\n                            '-ms-animation:blink-it steps(1) ' + blinkDelay + ' infinite;-o-animation:blink-it steps(1) ' + blinkDelay + ' infinite; ' +\n                            'animation:blink-it steps(1) ' + blinkDelay + ' infinite;';\n                        updateValue(element, text.substring(0, charIndex) + '<span class=\"blink\" style=\"' + auxStyle + '\">' + cursor + '</span>');\n                    } else {\n                        updateValue(element, text.substring(0, charIndex) + '<span class=\"blink\">' + cursor + '</span>');\n                    }\n                } else {\n                    updateValue(element, text.substring(0, charIndex));\n                }\n            }\n\n            function cleanAndRestart(element, charIndex, arrIndex, currentText) {\n              if(charIndex == 0) {\n                if($scope.prebeginFn) {\n                  $scope.prebeginFn()();\n                }\n              }\n                if (charIndex > 0) {\n                    currentText = currentText.slice(0, -1);\n                    // element.html(currentText.substring(0, currentText.length - 1) + cursor);\n                    updateValue(element, currentText + cursor);\n                    charIndex--;\n                    timer = $timeout(function () {\n                        cleanAndRestart(element, charIndex, arrIndex, currentText);\n                    }, eraseDelay);\n                    return;\n                } else {\n                    arrIndex++;\n                    currentText = textArray[arrIndex];\n                    timer = $timeout(function () {\n                        updateIt(element, 0, arrIndex, currentText);\n                    }, typeDelay);\n                }\n            }\n\n            function getTypeDelay(delay) {\n                if (typeof delay === 'string') {\n                    return delay.charAt(delay.length - 1) === 's' ? parseInt(delay.substring(0, delay.length - 1), 10) * 1000 : +delay;\n                } else {\n                    return false;\n                }\n            }\n\n            function getAnimationDelay(delay) {\n                if (typeof delay === 'string') {\n                    return delay.charAt(delay.length - 1) === 's' ? delay : parseInt(delay.substring(0, delay.length - 1), 10) / 1000;\n                }\n            }\n\n            function updateValue(element, value) {\n                if (element.prop('nodeName').toUpperCase() === 'INPUT') {\n                    return element.val(value);\n                }\n                return element.html(value);\n            }\n\n            $scope.$on('$destroy', function () {\n                if (timer) {\n                    $timeout.cancel(timer);\n                }\n            });\n\n            $scope.$watch('start', function (newVal) {\n                if (!running && newVal) {\n                    running = !running;\n                    typewrite();\n                }\n            });\n\n            $scope.$watch('text', function (newVal, oldVal) {\n              if(!(newVal instanceof Array)) {\n                currentText = newVal;\n                typewrite();\n              }\n            });\n        }\n\n        return {\n            restrict: 'A',\n            link: linkFunction,\n            replace: true,\n            scope: {\n                text: '=',\n                callbackFn: '&',\n                iterationCallback: '&',\n                iterationDelay: '=',\n                prebeginFn: '&',\n                start: '='\n            }\n        };\n\n    }]);\n;class ExtensionManager {\n\n  constructor(Restangular, modelManager) {\n      this.Restangular = Restangular;\n      this.modelManager = modelManager;\n      this.extensions = [];\n      this.enabledRepeatActions = [];\n      this.enabledRepeatActionUrls = localStorage.getItem(\"enabled_ext_urls\") || [];\n  }\n\n  addExtension(url) {\n    console.log(\"Registering URL\", url);\n    this.Restangular.oneUrl(url, url).get().then(function(response){\n      console.log(\"get response\", response.plain());\n      var extension = new Extension(response.plain());\n      this.registerExtension(extension);\n    }.bind(this))\n    .catch(function(response){\n      console.log(\"Error registering extension\", response);\n    })\n  }\n\n  registerExtension(extension) {\n      this.extensions.push(extension);\n      console.log(\"registered extensions\", this.extensions);\n  }\n\n  executeAction(action, extension, callback) {\n    if(action.type == \"get\") {\n      this.Restangular.oneUrl(action.url, action.url).get().then(function(response){\n        console.log(\"Execute action response\", response);\n        var items = response.items;\n        this.modelManager.mapResponseItemsToLocalModels(items);\n        callback(items);\n      }.bind(this))\n    }\n  }\n\n  isRepeatActionEnabled(action) {\n    return this.enabledRepeatActionUrls.includes(action.url);\n  }\n\n  disableRepeatAction(action, extension) {\n    console.log(\"Disabling action\", action);\n    _.pull(this.enabledRepeatActionUrls, action.url);\n    _.pull(this.enabledRepeatActions, action);\n    this.modelManager.removeItemObserver(action.url);\n    console.assert(this.isRepeatActionEnabled(action) == false);\n  }\n\n  enableRepeatAction(action, extension) {\n    console.log(\"Enabling repeat action\", action);\n\n    this.enabledRepeatActionUrls.push(action.url);\n    this.enabledRepeatActions.push(action);\n\n    if(action.repeatType == \"watch\") {\n      for(var structure of action.structures) {\n        this.modelManager.addItemObserver(action.url, structure.type, function(changedItems){\n          this.triggerWatchAction(action, changedItems);\n        }.bind(this))\n      }\n    }\n  }\n\n  triggerWatchAction(action, changedItems) {\n    console.log(\"Watch action triggered\", action, changedItems);\n    if(action.repeatFrequency > 0) {\n      var lastExecuted = action.lastExecuted;\n      var diffInSeconds = (new Date() - lastExecuted)/1000;\n      if(diffInSeconds < action.repeatFrequency) {\n        console.log(\"too frequent, returning\");\n        return;\n      }\n    }\n\n    if(action.repeatVerb == \"post\") {\n      var request = this.Restangular.oneUrl(action.url, action.url);\n      request.items = changedItems.map(function(item){\n        var params = {uuid: item.uuid, content_type: item.content_type, content: item.content};\n        return params;\n      })\n      request.post().then(function(response){\n        console.log(\"watch action response\", response);\n        action.lastExecuted = new Date();\n      })\n    }\n  }\n\n}\n\nangular.module('app.frontend').service('extensionManager', ExtensionManager);\n;angular.module('app.frontend')\n  .filter('appDate', function ($filter) {\n      return function (input) {\n          return input ? $filter('date')(new Date(input), 'MM/dd/yyyy', 'UTC') : '';\n      };\n  })\n  .filter('appDateTime', function ($filter) {\n      return function (input) {\n          return input ? $filter('date')(new Date(input), 'MM/dd/yyyy h:mm a') : '';\n      };\n  });\n;class ItemManager {\n\n  constructor() {\n    this._items = [];\n  }\n\n  get items() {\n    return this._items;\n  }\n\n  findItem(itemId) {\n    return _.find(this.items, {uuid: itemId});\n  }\n\n  addItems(items) {\n    this._items = _.uniq(this.items.concat(items));\n  }\n\n  mapResponseItemsToLocalModels(items) {\n    return this.mapResponseItemsToLocalModelsOmittingFields(items, null)\n  }\n\n  mapResponseItemsToLocalModelsOmittingFields(items, omitFields) {\n    var models = []\n    for (var json_obj of items) {\n      json_obj = _.omit(json_obj, omitFields || [])\n      var item = this.findItem(json_obj[\"uuid\"]);\n      if(json_obj[\"deleted\"] == true) {\n          if(item) {\n            this.deleteItem(item)\n          }\n          continue;\n      }\n\n      if(item) {\n        _.merge(item, json_obj);\n      } else {\n        item = this.createItem(json_obj);\n      }\n\n      models.push(item)\n    }\n    this.addItems(models)\n    this.resolveReferences()\n    return models;\n  }\n\n  createItem(json_obj) {\n    if(json_obj.content_type == \"Note\") {\n      return new Note(json_obj);\n    } else if(json_obj.content_type == \"Tag\") {\n      return new Tag(json_obj);\n    } else {\n      return new Item(json_obj);\n    }\n  }\n\n  resolveReferences() {\n    this.items.forEach(function(item){\n      // build out references, safely handle broken references\n      item.content.references = _.reduce(item.content.references, function(accumulator, reference){\n        var item = this.findItem(reference.uuid);\n        if(item) {\n          accumulator.push(item);\n        }\n        return accumulator;\n      }.bind(this), []);\n    }.bind(this));\n  }\n\n  itemsForContentType(contentType) {\n    return this.items.filter(function(item){\n      return item.content_type == contentType;\n    });\n  }\n\n  addItem(item) {\n    if(!this.findItem(item.uuid)) {\n      this.items.push(item);\n    }\n  }\n\n  // returns dirty item references that need saving\n  deleteItem(item) {\n    var dirty = [];\n    _.remove(this.items, item);\n    var length = item.content.references.length;\n    // note that references are deleted in this for loop, so you have to be careful how you iterate\n    for(var i = 0; i < length; i++) {\n      var referencedItem = item.content.references[0];\n      // console.log(\"removing references between items\", referencedItem, item);\n      var _dirty = this.removeReferencesBetweenItems(referencedItem, item);\n      dirty = dirty.concat(_dirty);\n    }\n\n    return dirty;\n  }\n\n  removeReferencesBetweenItems(itemOne, itemTwo) {\n    itemOne.removeReference(itemTwo);\n    itemTwo.removeReference(itemOne);\n    return [itemOne, itemTwo];\n  }\n\n  createReferencesBetweenItems(itemOne, itemTwo) {\n    itemOne.addReference(itemTwo);\n    itemTwo.addReference(itemOne);\n    return [itemOne, itemTwo];\n  }\n}\n\nangular.module('app.frontend').service('itemManager', ItemManager);\n;angular.module('app.frontend')\n  .service('markdownRenderer', function ($sce) {\n\n    marked.setOptions({\n      breaks: true,\n      sanitize: true\n    });\n\n    this.renderedContentForText = function(text) {\n      if(!text || text.length == 0) {\n        return \"\";\n      }\n      return marked(text);\n    }\n\n    this.renderHtml = function(html_code) {\n      return $sce.trustAsHtml(html_code);\n    };\n\n\n  });\n;class ModelManager extends ItemManager {\n\n  constructor() {\n    super();\n    this.notes = [];\n    this.tags = [];\n    this.dirtyItems = [];\n    this.changeObservers = [];\n  }\n\n  resolveReferences() {\n    super.resolveReferences()\n\n    this.notes.push.apply(this.notes, _.difference(this.itemsForContentType(\"Note\"), this.notes));\n    Item.sortItemsByDate(this.notes);\n    this.notes.forEach(function(note){\n      note.updateReferencesLocalMapping();\n    })\n\n    this.tags.push.apply(this.tags, _.difference(this.itemsForContentType(\"Tag\"), this.tags));\n    this.tags.forEach(function(tag){\n      tag.updateReferencesLocalMapping();\n    })\n  }\n\n  addItemObserver(id, type, callback) {\n    this.changeObservers.push({id: id, type: type, callback: callback});\n  }\n\n  removeItemObserver(id) {\n    _.remove(this.changeObservers, _.find(this.changeObservers, {id: id}));\n  }\n\n  addDirtyItems(items) {\n    if(!(items instanceof Array)) {\n      items = [items];\n    }\n\n    this.dirtyItems = this.dirtyItems.concat(items);\n    this.dirtyItems = _.uniq(this.dirtyItems);\n  }\n\n  get filteredNotes() {\n    return Note.filterDummyNotes(this.notes);\n  }\n\n  clearDirtyItems() {\n    console.log(\"Clearing dirty items\", this.dirtyItems);\n    for(var observer of this.changeObservers) {\n      var changedItems = this.dirtyItems.filter(function(item){return item.content_type == observer.type});\n      console.log(\"observer:\", observer, \"items\", changedItems);\n      observer.callback(changedItems);\n    }\n    this.dirtyItems = [];\n  }\n\n  addNote(note) {\n    if(!_.find(this.notes, {uuid: note.uuid})) {\n      this.notes.unshift(note);\n      this.addItem(note);\n    }\n  }\n\n  addTag(tag) {\n    this.tags.unshift(tag);\n    this.addItem(tag);\n  }\n\n  addTagToNote(tag, note) {\n    var dirty = this.createReferencesBetweenItems(tag, note);\n    this.refreshRelationshipsForTag(tag);\n    this.refreshRelationshipsForNote(note);\n    this.addDirtyItems(dirty);\n  }\n\n  refreshRelationshipsForTag(tag) {\n    tag.notes = tag.referencesMatchingContentType(\"Note\");\n    Item.sortItemsByDate(tag.notes);\n  }\n\n  refreshRelationshipsForNote(note) {\n    note.tags = note.referencesMatchingContentType(\"Tag\");\n  }\n\n  removeTagFromNote(tag, note) {\n    var dirty = this.removeReferencesBetweenItems(tag, note);\n    this.addDirtyItems(dirty);\n  }\n\n  deleteItem(item) {\n    var dirty = super.deleteItem(item);\n    if(item.content_type == \"Note\") {\n        _.remove(this.notes, item);\n    } else if(item.content_type == \"Tag\") {\n        _.remove(this.tags, item);\n    }\n    return dirty;\n  }\n\n  deleteNote(note) {\n    var dirty = this.deleteItem(note);\n    _.remove(this.notes, note);\n    if(!note.dummy) {\n      this.addDirtyItems(dirty);\n    }\n  }\n\n  deleteTag(tag) {\n    var dirty = this.deleteItem(tag);\n    _.remove(this.tags, tag);\n    this.addDirtyItems(dirty);\n  }\n\n}\n\nangular.module('app.frontend').service('modelManager', ModelManager);\n;angular.module('app.frontend')\n  .service('serverSideValidation', function ($sce) {\n    // Show validation errors in form.\n    this.showErrors = function (formErrors, form) {\n      angular.forEach(formErrors, function (errors, key) {\n        if (typeof form[key] !== 'undefined') {\n          form[key].$setDirty();\n          form[key].$setValidity('server', false);\n          form[key].$error.server = $sce.trustAsHtml(errors.join(', '));\n        }\n      });\n    };\n\n    // Get validation errors from server response and show them in form.\n    this.parseErrors = function (response, form) {\n      if (response.status === 422) {\n        this.showErrors(response.data, form);\n      }\n    };\n});\n"]}
\ No newline at end of file
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SNCrypto {\n\n  generateRandomKey() {\n    return CryptoJS.lib.WordArray.random(512/8).toString();\n  }\n\n  generateUUID() {\n    var crypto = window.crypto || window.msCrypto;\n    if(crypto) {\n      var buf = new Uint32Array(4);\n      crypto.getRandomValues(buf);\n      var idx = -1;\n      return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\n          idx++;\n          var r = (buf[idx>>3] >> ((idx%8)*4))&15;\n          var v = c == 'x' ? r : (r&0x3|0x8);\n          return v.toString(16);\n      });\n    } else {\n      var d = new Date().getTime();\n      if(window.performance && typeof window.performance.now === \"function\"){\n        d += performance.now(); //use high-precision timer if available\n      }\n      var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\n        var r = (d + Math.random()*16)%16 | 0;\n        d = Math.floor(d/16);\n        return (c=='x' ? r : (r&0x3|0x8)).toString(16);\n      });\n      return uuid;\n    }\n  }\n\n  decryptText(encrypted_content, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var ivData  = CryptoJS.enc.Hex.parse(\"\");\n    var decrypted = CryptoJS.AES.decrypt(encrypted_content, keyData, { iv: ivData,  mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 });\n    return decrypted.toString(CryptoJS.enc.Utf8);\n  }\n\n  encryptText(text, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var ivData  = CryptoJS.enc.Hex.parse(\"\");\n    var encrypted = CryptoJS.AES.encrypt(text, keyData, { iv: ivData,  mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 });\n    return encrypted.toString();\n  }\n\n  generateRandomEncryptionKey() {\n    var salt = Neeto.crypto.generateRandomKey();\n    var passphrase = Neeto.crypto.generateRandomKey();\n    return CryptoJS.PBKDF2(passphrase, salt, { keySize: 512/32 }).toString();\n  }\n\n  firstHalfOfKey(key) {\n    return key.substring(0, key.length/2);\n  }\n\n  secondHalfOfKey(key) {\n    return key.substring(key.length/2, key.length);\n  }\n\n  base64(text) {\n    return CryptoJS.enc.Utf8.parse(text).toString(CryptoJS.enc.Base64)\n  }\n\n  base64Decode(base64String) {\n    return CryptoJS.enc.Base64.parse(base64String).toString(CryptoJS.enc.Utf8)\n  }\n\n  sha256(text) {\n    return CryptoJS.SHA256(text).toString();\n  }\n\n  sha1(text) {\n    return CryptoJS.SHA1(text).toString();\n  }\n\n  hmac256(message, key) {\n    var keyData = CryptoJS.enc.Hex.parse(key);\n    var messageData = CryptoJS.enc.Utf8.parse(message);\n    return CryptoJS.HmacSHA256(messageData, keyData).toString();\n  }\n\n  computeEncryptionKeysForUser({email, password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n     this.generateSymmetricKeyPair({password: password, pw_salt: pw_salt,\n       pw_func: pw_func, pw_alg: pw_alg, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(keys){\n         var pw = keys[0];\n         var mk = keys[1];\n\n         callback({pw: pw, mk: mk});\n       });\n   }\n\n   generateInitialEncryptionKeysForUser({email, password} = {}, callback) {\n     var defaults = this.defaultPasswordGenerationParams();\n     var {pw_func, pw_alg, pw_key_size, pw_cost} = defaults;\n     var pw_nonce = this.generateRandomKey();\n     var pw_salt = this.sha1(email + \"SN\" + pw_nonce);\n     this.generateSymmetricKeyPair(_.merge({email: email, password: password, pw_salt: pw_salt}, defaults), function(keys){\n       var pw = keys[0];\n       var mk = keys[1];\n\n       callback(_.merge({pw: pw, mk: mk, pw_nonce: pw_nonce}, defaults));\n     });\n   }\n}\n\nexport { SNCrypto }\n;class SNCryptoJS extends SNCrypto {\n\n   /** Generates two deterministic keys based on one input */\n   generateSymmetricKeyPair({password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n     var algMapping = {\n       \"sha256\" : CryptoJS.algo.SHA256,\n       \"sha512\" : CryptoJS.algo.SHA512\n     }\n     var fnMapping = {\n       \"pbkdf2\" : CryptoJS.PBKDF2\n     }\n\n     var alg = algMapping[pw_alg];\n     var kdf = fnMapping[pw_func];\n     var output = kdf(password, pw_salt, { keySize: pw_key_size/32, hasher: alg, iterations: pw_cost }).toString();\n\n     var outputLength = output.length;\n     var firstHalf = output.slice(0, outputLength/2);\n     var secondHalf = output.slice(outputLength/2, outputLength);\n     callback([firstHalf, secondHalf])\n   }\n\n   defaultPasswordGenerationParams() {\n     return {pw_func: \"pbkdf2\", pw_alg: \"sha512\", pw_key_size: 512, pw_cost: 3000};\n   }\n }\n\n\nexport { SNCryptoJS }\n;var subtleCrypto = window.crypto.subtle;\n\nclass SNCryptoWeb extends SNCrypto {\n\n  /**\n  Overrides\n  */\n  defaultPasswordGenerationParams() {\n    return {pw_func: \"pbkdf2\", pw_alg: \"sha512\", pw_key_size: 512, pw_cost: 5000};\n  }\n\n  /** Generates two deterministic keys based on one input */\n  generateSymmetricKeyPair({password, pw_salt, pw_func, pw_alg, pw_cost, pw_key_size} = {}, callback) {\n   this.stretchPassword({password: password, pw_func: pw_func, pw_alg: pw_alg, pw_salt: pw_salt, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(output){\n     var outputLength = output.length;\n     var firstHalf = output.slice(0, outputLength/2);\n     var secondHalf = output.slice(outputLength/2, outputLength);\n     callback([firstHalf, secondHalf]);\n   })\n  }\n\n  /**\n  Internal\n  */\n\n  stretchPassword({password, pw_salt, pw_cost, pw_func, pw_alg, pw_key_size} = {}, callback) {\n\n   this.webCryptoImportKey(password, pw_func, function(key){\n\n     if(!key) {\n       console.log(\"Key is null, unable to continue\");\n       callback(null);\n       return;\n     }\n\n     this.webCryptoDeriveBits({key: key, pw_func: pw_func, pw_alg: pw_alg, pw_salt: pw_salt, pw_cost: pw_cost, pw_key_size: pw_key_size}, function(key){\n       if(!key) {\n         callback(null);\n         return;\n       }\n\n       callback(key);\n\n     }.bind(this))\n   }.bind(this))\n  }\n\n  webCryptoImportKey(input, pw_func, callback) {\n     subtleCrypto.importKey(\n      \"raw\",\n      this.stringToArrayBuffer(input),\n      {name: pw_func.toUpperCase()},\n      false,\n      [\"deriveBits\"]\n    )\n    .then(function(key){\n      callback(key);\n    })\n    .catch(function(err){\n      console.error(err);\n      callback(null);\n    });\n  }\n\n  webCryptoDeriveBits({key, pw_func, pw_alg, pw_salt, pw_cost, pw_key_size} = {}, callback) {\n     var algMapping = {\n       \"sha256\" : \"SHA-256\",\n       \"sha512\" : \"SHA-512\",\n     }\n     var alg = algMapping[pw_alg];\n     subtleCrypto.deriveBits(\n      {\n        \"name\": pw_func.toUpperCase(),\n        salt: this.stringToArrayBuffer(pw_salt),\n        iterations: pw_cost,\n        hash: {name: alg},\n      },\n      key,\n      pw_key_size\n    )\n    .then(function(bits){\n      var key = this.arrayBufferToHexString(new Uint8Array(bits));\n      callback(key);\n    }.bind(this))\n    .catch(function(err){\n      console.error(err);\n      callback(null);\n    });\n  }\n\n  stringToArrayBuffer(string) {\n     var encoder = new TextEncoder(\"utf-8\");\n     return encoder.encode(string);\n   }\n\n  arrayBufferToHexString(arrayBuffer) {\n      var byteArray = new Uint8Array(arrayBuffer);\n      var hexString = \"\";\n      var nextHexByte;\n\n      for (var i=0; i<byteArray.byteLength; i++) {\n          nextHexByte = byteArray[i].toString(16);\n          if (nextHexByte.length < 2) {\n              nextHexByte = \"0\" + nextHexByte;\n          }\n          hexString += nextHexByte;\n      }\n      return hexString;\n  }\n}\n\nexport { SNCryptoWeb }\n;'use strict';\n\nvar Neeto = Neeto || {};\n\nif(window.crypto.subtle) {\n  Neeto.crypto = new SNCryptoWeb();\n} else {\n  Neeto.crypto = new SNCryptoJS();\n}\n\nangular.module('app.frontend', [\n  'ui.router',\n  'restangular',\n  'oc.lazyLoad',\n  'angularLazyImg',\n  'ngDialog'\n])\n\n.config(function (RestangularProvider, apiControllerProvider) {\n  RestangularProvider.setDefaultHeaders({\"Content-Type\": \"application/json\"});\n\n  var url = apiControllerProvider.defaultServerURL();\n  RestangularProvider.setBaseUrl(url + \"/api\");\n\n  RestangularProvider.setFullRequestInterceptor(function(element, operation, route, url, headers, params, httpConfig) {\n    var token = localStorage.getItem(\"jwt\");\n    if(token) {\n      headers = _.extend(headers, {Authorization: \"Bearer \" + localStorage.getItem(\"jwt\")});\n    }\n\n    return {\n      element: element,\n      params: params,\n      headers: headers,\n      httpConfig: httpConfig\n    };\n  });\n})\n.config(['$qProvider', function ($qProvider) {\n    // $qProvider.errorOnUnhandledRejections(false);\n}]);\n;angular.module('app.frontend')\n  .config(function ($stateProvider, $urlRouterProvider, $locationProvider) {\n\n    $stateProvider\n      .state('base', {\n        abstract: true,\n      })\n\n      .state('home', {\n        url: '/',\n        parent: 'base',\n        views: {\n          'content@' : {\n            templateUrl: 'frontend/home.html',\n            controller: 'HomeCtrl'\n          }\n        }\n      })\n\n      // 404 Error\n      .state('404', {\n        parent: 'base',\n        views: {\n          'content@' : {\n            templateUrl: 'frontend/errors/404.html'\n          }\n        }\n      });\n\n      // Default fall back route\n      $urlRouterProvider.otherwise(function($injector, $location){\n         var state = $injector.get('$state');\n         state.go('404');\n         return $location.path();\n      });\n\n      // enable HTML5 Mode for SEO\n      $locationProvider.html5Mode(true);\n\n  });\n;class BaseCtrl {\n  constructor($rootScope, modelManager) {\n    // $rootScope.resetPasswordSubmit = function() {\n    //   var new_keys = Neeto.crypto.generateEncryptionKeysForUser($rootScope.resetData.password, $rootScope.resetData.email);\n    //   var data = _.clone($rootScope.resetData);\n    //   data.password = new_keys.pw;\n    //   data.password_confirmation = new_keys.pw;\n    //   $auth.updatePassword(data);\n    //   apiController.setMk(new_keys.mk);\n    // }\n  }\n}\n\nangular.module('app.frontend').controller('BaseCtrl', BaseCtrl);\n;angular.module('app.frontend')\n  .directive(\"editorSection\", function($timeout){\n    return {\n      restrict: 'E',\n      scope: {\n        save: \"&\",\n        remove: \"&\",\n        note: \"=\",\n        user: \"=\"\n      },\n      templateUrl: 'frontend/editor.html',\n      replace: true,\n      controller: 'EditorCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n\n        var handler = function(event) {\n          if (event.ctrlKey || event.metaKey) {\n              switch (String.fromCharCode(event.which).toLowerCase()) {\n              case 's':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.saveNote(event);\n                  });\n                  break;\n              case 'e':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.clickedEditNote();\n                  })\n                  break;\n              case 'm':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.toggleMarkdown();\n                  })\n                  break;\n              case 'o':\n                  event.preventDefault();\n                  $timeout(function(){\n                    ctrl.toggleFullScreen();\n                  })\n                  break;\n              }\n          }\n        };\n\n        window.addEventListener('keydown', handler);\n\n        scope.$on('$destroy', function(){\n          window.removeEventListener('keydown', handler);\n        })\n\n        scope.$watch('ctrl.note', function(note, oldNote){\n          if(note) {\n            ctrl.setNote(note, oldNote);\n          } else {\n            ctrl.note = {};\n          }\n        });\n      }\n    }\n  })\n  .controller('EditorCtrl', function ($sce, $timeout, apiController, markdownRenderer, $rootScope) {\n\n    this.setNote = function(note, oldNote) {\n      this.editorMode = 'edit';\n\n      if(note.safeText().length == 0 && note.dummy) {\n        this.focusTitle(100);\n      }\n\n      if(oldNote && oldNote != note) {\n        if(oldNote.hasChanges) {\n          this.save()(oldNote, null);\n        } else if(oldNote.dummy) {\n          this.remove()(oldNote);\n        }\n      }\n    }\n\n    this.onPreviewDoubleClick = function() {\n      this.editorMode = 'edit';\n      this.focusEditor(100);\n    }\n\n    this.focusEditor = function(delay) {\n      setTimeout(function(){\n        var element = document.getElementById(\"note-text-editor\");\n        element.focus();\n      }, delay)\n    }\n\n    this.focusTitle = function(delay) {\n      setTimeout(function(){\n        document.getElementById(\"note-title-editor\").focus();\n      }, delay)\n    }\n\n    this.clickedTextArea = function() {\n      this.showMenu = false;\n    }\n\n    this.renderedContent = function() {\n      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText(this.note.safeText()));\n    }\n\n    var statusTimeout;\n\n    this.saveNote = function($event) {\n      var note = this.note;\n      note.dummy = false;\n      this.save()(note, function(success){\n        if(success) {\n          apiController.clearDraft();\n\n          if(statusTimeout) $timeout.cancel(statusTimeout);\n          statusTimeout = $timeout(function(){\n            this.noteStatus = \"All changes saved\"\n          }.bind(this), 200)\n        }\n      }.bind(this));\n    }\n\n    this.saveTitle = function($event) {\n      $event.target.blur();\n      this.saveNote($event);\n      this.focusEditor();\n    }\n\n    var saveTimeout;\n    this.changesMade = function() {\n      this.note.hasChanges = true;\n      this.note.dummy = false;\n      if(this.user.uuid) {\n        // signed out users have local autosave, dont need draft saving\n        apiController.saveDraftToDisk(this.note);\n      }\n\n      if(saveTimeout) $timeout.cancel(saveTimeout);\n      if(statusTimeout) $timeout.cancel(statusTimeout);\n      saveTimeout = $timeout(function(){\n        this.noteStatus = \"Saving...\";\n        this.saveNote();\n      }.bind(this), 150)\n    }\n\n\n    this.contentChanged = function() {\n      this.changesMade();\n    }\n\n    this.nameChanged = function() {\n      this.changesMade();\n    }\n\n    this.onNameFocus = function() {\n      this.editingName = true;\n    }\n\n    this.onContentFocus = function() {\n      this.showSampler = false;\n      $rootScope.$broadcast(\"editorFocused\");\n      this.editingUrl = false;\n    }\n\n    this.onNameBlur = function() {\n      this.editingName = false;\n    }\n\n    this.toggleFullScreen = function() {\n      this.fullscreen = !this.fullscreen;\n      if(this.fullscreen) {\n        if(this.editorMode == 'edit') {\n          // refocus\n          this.focusEditor(0);\n        }\n      } else {\n\n      }\n    }\n\n    this.selectedMenuItem = function() {\n      this.showMenu = false;\n    }\n\n    this.toggleMarkdown = function() {\n      if(this.editorMode == 'preview') {\n        this.editorMode = 'edit';\n      } else {\n        this.editorMode = 'preview';\n      }\n    }\n\n    this.editUrlPressed = function() {\n      this.showMenu = false;\n      var url = this.publicUrlForNote(this.note);\n      url = url.replace(this.note.presentation_name, \"\");\n      this.url = {base: url, token : this.note.presentation_name};\n      this.editingUrl = true;\n    }\n\n    this.saveUrl = function($event) {\n      $event.target.blur();\n\n      var original = this.note.presentation_name;\n      this.note.presentation_name = this.url.token;\n      this.note.dirty = true;\n\n      apiController.sync(function(response){\n        if(!response) {\n          this.note.presentation_name = original;\n          this.url.token = original;\n          alert(\"This URL is not available.\");\n        } else {\n          this.editingUrl = false;\n        }\n      }.bind(this))\n    }\n\n    this.shareNote = function() {\n\n      function openInNewTab(url) {\n        var a = document.createElement(\"a\");\n        a.target = \"_blank\";\n        a.href = url;\n        a.click();\n    }\n\n      apiController.shareItem(this.note, function(note){\n        openInNewTab(this.publicUrlForNote(note));\n      }.bind(this))\n      this.showMenu = false;\n    }\n\n    this.unshareNote = function() {\n      apiController.unshareItem(this.note, function(note){\n\n      })\n      this.showMenu = false;\n    }\n\n    this.publicUrlForNote = function() {\n      return this.note.presentationURL();\n    }\n\n    this.clickedMenu = function() {\n      if(this.note.locked) {\n        alert(\"This note has been shared without an account, and can therefore not be changed.\")\n      } else {\n        this.showMenu = !this.showMenu;\n      }\n    }\n\n    this.deleteNote = function() {\n      apiController.clearDraft();\n      this.remove()(this.note);\n      this.showMenu = false;\n    }\n\n    this.clickedEditNote = function() {\n      this.editorMode = 'edit';\n      this.focusEditor(100);\n    }\n\n  });\n;angular.module('app.frontend')\n  .directive(\"header\", function(apiController, extensionManager){\n    return {\n      restrict: 'E',\n      scope: {\n        user: \"=\",\n        logout: \"&\"\n      },\n      templateUrl: 'frontend/header.html',\n      replace: true,\n      controller: 'HeaderCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$on(\"sync:updated_token\", function(){\n          ctrl.syncUpdated();\n        })\n      }\n    }\n  })\n  .controller('HeaderCtrl', function ($state, apiController, modelManager, serverSideValidation, $timeout, extensionManager) {\n\n    this.extensionManager = extensionManager;\n\n    this.changePasswordPressed = function() {\n      this.showNewPasswordForm = !this.showNewPasswordForm;\n    }\n\n    this.accountMenuPressed = function() {\n      this.serverData = {url: apiController.getServer()};\n      this.showAccountMenu = !this.showAccountMenu;\n      this.showFaq = false;\n      this.showNewPasswordForm = false;\n    }\n\n    this.toggleExtensions = function() {\n      this.showExtensionsMenu = !this.showExtensionsMenu;\n    }\n\n    this.toggleExtensionForm = function() {\n      this.newExtensionData = {};\n      this.showNewExtensionForm = !this.showNewExtensionForm;\n    }\n\n    this.submitNewExtensionForm = function() {\n      extensionManager.addExtension(this.newExtensionData.url)\n    }\n\n    this.selectedAction = function(action, extension) {\n      extensionManager.executeAction(action, extension, function(response){\n        apiController.sync(null);\n      })\n    }\n\n    this.changeServer = function() {\n      apiController.setServer(this.serverData.url, true);\n    }\n\n    this.signOutPressed = function() {\n      this.showAccountMenu = false;\n      this.logout()();\n      apiController.signout();\n      window.location.reload();\n    }\n\n    this.submitPasswordChange = function() {\n      this.passwordChangeData.status = \"Generating New Keys...\";\n\n      $timeout(function(){\n        if(data.password != data.password_confirmation) {\n          alert(\"Your new password does not match its confirmation.\");\n          return;\n        }\n\n        apiController.changePassword(this.user, this.passwordChangeData.current_password, this.passwordChangeData.new_password, function(response){\n\n        })\n\n      }.bind(this))\n    }\n\n    this.hasLocalData = function() {\n      return modelManager.filteredNotes.length > 0;\n    }\n\n    this.mergeLocalChanged = function() {\n      if(!this.user.shouldMerge) {\n        if(!confirm(\"Unchecking this option means any locally stored tags and notes you have now will be deleted. Are you sure you want to continue?\")) {\n          this.user.shouldMerge = true;\n        }\n      }\n    }\n\n    this.refreshData = function() {\n      this.isRefreshing = true;\n      apiController.sync(function(response){\n        $timeout(function(){\n          this.isRefreshing = false;\n        }.bind(this), 200)\n        if(!response) {\n          alert(\"There was an error syncing. Please try again. If all else fails, log out and log back in.\");\n        } else {\n          this.syncUpdated();\n        }\n      }.bind(this));\n    }\n\n    this.syncUpdated = function() {\n      this.lastSyncDate = new Date();\n    }\n\n    this.loginSubmitPressed = function() {\n      this.loginData.status = \"Generating Login Keys...\";\n      $timeout(function(){\n        apiController.login(this.loginData.email, this.loginData.user_password, function(response){\n          if(!response || response.error) {\n            var error = response ? response.error : {message: \"An unknown error occured.\"}\n            this.loginData.status = null;\n            alert(error.message);\n          } else {\n            this.onAuthSuccess(response.user);\n          }\n        }.bind(this));\n      }.bind(this))\n    }\n\n    this.submitRegistrationForm = function() {\n      this.loginData.status = \"Generating Account Keys...\";\n\n      $timeout(function(){\n        apiController.register(this.loginData.email, this.loginData.user_password, function(response){\n          if(!response || response.error) {\n            var error = response ? response.error : {message: \"An unknown error occured.\"}\n            this.loginData.status = null;\n            alert(error.message);\n          } else {\n            this.onAuthSuccess(response.user);\n          }\n        }.bind(this));\n      }.bind(this))\n    }\n\n    this.forgotPasswordSubmit = function() {\n      // $auth.requestPasswordReset(this.resetData)\n      //   .then(function(resp) {\n      //     this.resetData.response = \"Success\";\n      //     // handle success response\n      //   }.bind(this))\n      //   .catch(function(resp) {\n      //     // handle error response\n      //     this.resetData.response = \"Error\";\n      //   }.bind(this));\n    }\n\n    this.encryptionStatusForNotes = function() {\n      var allNotes = modelManager.filteredNotes;\n      var countEncrypted = 0;\n      allNotes.forEach(function(note){\n        if(note.encryptionEnabled()) {\n          countEncrypted++;\n        }\n      }.bind(this))\n\n      return countEncrypted + \"/\" + allNotes.length + \" notes encrypted\";\n    }\n\n    this.downloadDataArchive = function() {\n      var link = document.createElement('a');\n      link.setAttribute('download', 'notes.json');\n      link.href = apiController.itemsDataFile();\n      link.click();\n    }\n\n    this.importFileSelected = function(files) {\n      var file = files[0];\n      var reader = new FileReader();\n      reader.onload = function(e) {\n        apiController.importJSONData(e.target.result, function(success, response){\n          console.log(\"import response\", success, response);\n          if(success) {\n            // window.location.reload();\n          } else {\n            alert(\"There was an error importing your data. Please try again.\");\n          }\n        })\n      }\n      reader.readAsText(file);\n    }\n\n    this.onAuthSuccess = function(user) {\n      this.user.uuid = user.uuid;\n\n      // if(this.user.shouldMerge && this.hasLocalData()) {\n        // apiController.mergeLocalDataRemotely(this.user, function(){\n        //   window.location.reload();\n        // });\n      // } else {\n        window.location.reload();\n      // }\n\n      this.showLogin = false;\n      this.showRegistration = false;\n    }\n\n  });\n;angular.module('app.frontend')\n.controller('HomeCtrl', function ($scope, $rootScope, $timeout, apiController, modelManager) {\n    $rootScope.bodyClass = \"app-body-class\";\n\n    var onUserSet = function() {\n      apiController.setUser($scope.defaultUser);\n      $scope.allTag = new Tag({all: true});\n      $scope.allTag.title = \"All\";\n      $scope.tags = modelManager.tags;\n      $scope.allTag.notes = modelManager.notes;\n\n      apiController.sync(null);\n      // refresh every 30s\n      setInterval(function () {\n        apiController.sync(null);\n      }, 30000);\n    }\n\n    apiController.getCurrentUser(function(user){\n      if(user) {\n        $scope.defaultUser = user;\n        $rootScope.title = \"Notes — Standard Notes\";\n        onUserSet();\n      } else {\n        $scope.defaultUser = new User(apiController.loadLocalItemsAndUser());\n        onUserSet();\n      }\n    });\n\n    /*\n    Tags Ctrl Callbacks\n    */\n\n    $scope.updateAllTag = function() {\n      // $scope.allTag.notes = modelManager.notes;\n    }\n\n    $scope.tagsWillMakeSelection = function(tag) {\n      if(tag.all) {\n        $scope.updateAllTag();\n      }\n    }\n\n    $scope.tagsSelectionMade = function(tag) {\n      $scope.selectedTag = tag;\n\n      if($scope.selectedNote && $scope.selectedNote.dummy) {\n        modelManager.removeItemLocally($scope.selectedNote);\n      }\n    }\n\n    $scope.tagsAddNew = function(tag) {\n      modelManager.addItem(tag);\n    }\n\n    $scope.tagsSave = function(tag, callback) {\n      tag.dirty = true;\n      apiController.sync(callback);\n    }\n\n    /*\n    Called to update the tag of a note after drag and drop change\n    The note object is a copy of the original\n    */\n    $scope.tagsUpdateNoteTag = function(noteCopy, newTag, oldTag) {\n\n      var originalNote = _.find(modelManager.notes, {uuid: noteCopy.uuid});\n      if(!newTag.all) {\n        modelManager.createRelationshipBetweenItems(newTag, originalNote);\n      }\n\n      apiController.sync(function(){});\n    }\n\n    /*\n    Notes Ctrl Callbacks\n    */\n\n    $scope.notesRemoveTag = function(tag) {\n      var validNotes = Note.filterDummyNotes(tag.notes);\n      if(validNotes == 0) {\n        modelManager.setItemToBeDeleted(tag);\n        // if no more notes, delete tag\n        apiController.sync(function(){\n          // force scope tags to update on sub directives\n          $scope.tags = [];\n          $timeout(function(){\n            $scope.tags = modelManager.tags;\n          })\n        });\n      } else {\n        alert(\"To delete this tag, remove all its notes first.\");\n      }\n    }\n\n    $scope.notesSelectionMade = function(note) {\n      $scope.selectedNote = note;\n    }\n\n    $scope.notesAddNew = function(note) {\n      modelManager.addItem(note);\n\n      if(!$scope.selectedTag.all) {\n        modelManager.createRelationshipBetweenItems($scope.selectedTag, note);\n        $scope.updateAllTag();\n      }\n    }\n\n    /*\n    Shared Callbacks\n    */\n\n    $scope.saveNote = function(note, callback) {\n      note.dirty = true;\n\n      apiController.sync(function(){\n        note.hasChanges = false;\n\n        if(callback) {\n          callback(true);\n        }\n      })\n    }\n\n    $scope.deleteNote = function(note) {\n\n      modelManager.setItemToBeDeleted(note);\n\n      if(note == $scope.selectedNote) {\n        $scope.selectedNote = null;\n      }\n\n      if(note.dummy) {\n        modelManager.removeItemLocally(note);\n        return;\n      }\n\n      apiController.sync(null);\n    }\n\n    /*\n    Header Ctrl Callbacks\n    */\n\n    $scope.headerLogout = function() {\n      $scope.defaultUser = apiController.loadLocalItemsAndUser();\n      $scope.tags = $scope.defaultUser.tags;\n    }\n\n\n});\n;angular.module('app.frontend')\n  .directive(\"notesSection\", function(){\n    return {\n      scope: {\n        addNew: \"&\",\n        selectionMade: \"&\",\n        remove: \"&\",\n        tag: \"=\",\n        user: \"=\",\n        removeTag: \"&\"\n      },\n\n      templateUrl: 'frontend/notes.html',\n      replace: true,\n      controller: 'NotesCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$watch('ctrl.tag', function(tag, oldTag){\n          if(tag) {\n            ctrl.tagDidChange(tag, oldTag);\n          }\n        });\n      }\n    }\n  })\n  .controller('NotesCtrl', function (apiController, $timeout, $rootScope) {\n\n    $rootScope.$on(\"editorFocused\", function(){\n      this.showMenu = false;\n    }.bind(this))\n\n    var isFirstLoad = true;\n\n    this.tagDidChange = function(tag, oldTag) {\n      this.showMenu = false;\n\n      if(this.selectedNote && this.selectedNote.dummy) {\n        _.remove(oldTag.notes, this.selectedNote);\n      }\n\n      this.noteFilter.text = \"\";\n\n      tag.notes.forEach(function(note){\n        note.visible = true;\n      })\n      this.selectFirstNote(false);\n\n      if(isFirstLoad) {\n        $timeout(function(){\n          var draft = apiController.getDraft();\n          if(draft) {\n            var note = draft;\n            this.selectNote(note);\n          } else {\n            this.createNewNote();\n            isFirstLoad = false;\n          }\n        }.bind(this))\n      } else if(tag.notes.length == 0) {\n          this.createNewNote();\n      }\n    }\n\n    this.selectedTagDelete = function() {\n      this.showMenu = false;\n      this.removeTag()(this.tag);\n    }\n\n    this.selectedTagShare = function() {\n      this.showMenu = false;\n\n      if(!this.user.uuid) {\n        alert(\"You must be signed in to share a tag.\");\n        return;\n      }\n\n      if(this.tag.all) {\n        alert(\"You cannot share the 'All' tag.\");\n        return;\n      }\n\n      apiController.shareItem(this.tag, function(response){})\n    }\n\n    this.selectedTagUnshare = function() {\n      this.showMenu = false;\n      apiController.unshareItem(this.tag, function(response){\n\n      })\n    }\n\n    this.selectFirstNote = function(createNew) {\n      var visibleNotes = this.tag.notes.filter(function(note){\n        return note.visible;\n      });\n\n      if(visibleNotes.length > 0) {\n        this.selectNote(visibleNotes[0]);\n      } else if(createNew) {\n        this.createNewNote();\n      }\n    }\n\n    this.selectNote = function(note) {\n      this.selectedNote = note;\n      this.selectionMade()(note);\n    }\n\n    this.createNewNote = function() {\n      var title = \"New Note\" + (this.tag.notes ? (\" \" + (this.tag.notes.length + 1)) : \"\");\n      this.newNote = new Note({dummy: true, text: \"\"});\n      this.newNote.title = title;\n      this.selectNote(this.newNote);\n      this.addNew()(this.newNote);\n    }\n\n    this.noteFilter = {text : ''};\n\n    this.filterNotes = function(note) {\n      if(this.noteFilter.text.length == 0) {\n        note.visible = true;\n      } else {\n        note.visible = note.title.toLowerCase().includes(this.noteFilter.text) || note.text.toLowerCase().includes(this.noteFilter.text);\n      }\n      return note.visible;\n    }.bind(this)\n\n    this.filterTextChanged = function() {\n      $timeout(function(){\n        if(!this.selectedNote.visible) {\n          this.selectFirstNote(false);\n        }\n      }.bind(this), 100)\n    }\n  });\n;angular.module('app.frontend')\n  .directive(\"tagsSection\", function(){\n    return {\n      restrict: 'E',\n      scope: {\n        addNew: \"&\",\n        selectionMade: \"&\",\n        willSelect: \"&\",\n        save: \"&\",\n        tags: \"=\",\n        allTag: \"=\",\n        user: \"=\",\n        updateNoteTag: \"&\"\n      },\n      templateUrl: 'frontend/tags.html',\n      replace: true,\n      controller: 'TagsCtrl',\n      controllerAs: 'ctrl',\n      bindToController: true,\n\n      link:function(scope, elem, attrs, ctrl) {\n        scope.$watch('ctrl.tags', function(newTags){\n          if(newTags) {\n            ctrl.setTags(newTags);\n          }\n        });\n\n        scope.$watch('ctrl.allTag', function(allTag){\n          if(allTag) {\n            ctrl.setAllTag(allTag);\n          }\n        });\n      }\n    }\n  })\n  .controller('TagsCtrl', function () {\n\n    var initialLoad = true;\n\n    this.setAllTag = function(allTag) {\n      this.selectTag(this.allTag);\n    }\n\n    this.setTags = function(tags) {\n      if(initialLoad) {\n          initialLoad = false;\n          this.selectTag(this.allTag);\n      } else {\n        if(tags && tags.length > 0) {\n          this.selectTag(tags[0]);\n        }\n      }\n    }\n\n    this.selectTag = function(tag) {\n      this.willSelect()(tag);\n      this.selectedTag = tag;\n      this.selectionMade()(tag);\n    }\n\n    this.clickedAddNewTag = function() {\n      if(this.editingTag) {\n        return;\n      }\n\n      this.newTag = new Tag({});\n      this.selectedTag = this.newTag;\n      this.editingTag = this.newTag;\n      this.addNew()(this.newTag);\n    }\n\n    var originalTagName = \"\";\n    this.onTagTitleFocus = function(tag) {\n      originalTagName = tag.title;\n    }\n\n    this.tagTitleDidChange = function(tag) {\n      this.editingTag = tag;\n    }\n\n    this.saveTag = function($event, tag) {\n      this.editingTag = null;\n      if(tag.title.length == 0) {\n        tag.title = originalTagName;\n        originalTagName = \"\";\n        return;\n      }\n\n      $event.target.blur();\n      if(!tag.title || tag.title.length == 0) {\n          return;\n      }\n\n      this.save()(tag, function(savedTag){\n        // _.merge(tag, savedTag);\n        this.selectTag(tag);\n        this.newTag = null;\n      }.bind(this));\n    }\n\n    this.noteCount = function(tag) {\n      var validNotes = Note.filterDummyNotes(tag.notes);\n      return validNotes.length;\n    }\n\n    this.handleDrop = function(e, newTag, note) {\n      this.updateNoteTag()(note, newTag, this.selectedTag);\n    }.bind(this)\n\n\n  });\n;angular.module('app.frontend')\n.controller('UsernameModalCtrl', function ($scope, apiController, Restangular, user, callback, $timeout) {\n  $scope.formData = {};\n\n  $scope.saveUsername = function() {\n    apiController.setUsername(user, $scope.formData.username, function(response){\n      var username = response.username;\n      user.username = username;\n      callback(username);\n      $scope.closeThisDialog();\n    })\n  }\n});\n;class Item {\n\n  constructor(json_obj) {\n\n    this.updateFromJSON(json_obj);\n\n    if(!this.uuid) {\n      this.uuid = Neeto.crypto.generateUUID();\n    }\n  }\n\n  static sortItemsByDate(items) {\n    items.sort(function(a,b){\n      return new Date(b.created_at) - new Date(a.created_at);\n    });\n  }\n\n  get contentObject() {\n    // console.log(\"getting content object from content\", this.content);\n    if(!this.content) {\n      return {};\n    }\n\n    if(this.content !== null && typeof this.content === 'object') {\n      // this is the case when mapping localStorage content, in which case the content is already parsed\n      return this.content;\n    }\n\n    return JSON.parse(this.content);\n  }\n\n  updateFromJSON(json) {\n    _.merge(this, json);\n    if(this.created_at) {\n      this.created_at = new Date(this.created_at);\n      this.updated_at = new Date(this.updated_at);\n    } else {\n      this.created_at = new Date();\n      this.updated_at = new Date();\n    }\n\n    if(json.content) {\n      this.mapContentToLocalProperties(this.contentObject);\n    }\n  }\n\n  mapContentToLocalProperties(contentObj) {\n\n  }\n\n  createContentJSONFromProperties() {\n    return this.structureParams();\n  }\n\n  referenceParams() {\n    // must override\n  }\n\n  structureParams() {\n    return {references: this.referenceParams()}\n  }\n\n  addItemAsRelationship(item) {\n    // must override\n  }\n\n  removeItemAsRelationship(item) {\n    // must override\n  }\n\n  removeFromRelationships() {\n    // must override\n  }\n\n  mergeMetadataFromItem(item) {\n    _.merge(this, _.omit(item, [\"content\"]));\n  }\n\n  referencesAffectedBySharingChange() {\n    // should be overriden to determine which references should be decrypted/encrypted\n    return null;\n  }\n\n  isPublic() {\n    return this.presentation_name;\n  }\n\n  isEncrypted() {\n    return this.encryptionEnabled() && this.content.substring(0, 3) === '001' ? true : false;\n  }\n\n  encryptionEnabled() {\n    return this.enc_item_key;\n  }\n\n  presentationURL() {\n    return this.presentation_url;\n  }\n\n}\n;class Extension extends Item {\n  constructor(json) {\n      super(json);\n      _.merge(this, json);\n\n      this.actions = this.actions.map(function(action){\n        return new Action(action);\n      })\n  }\n}\n\nclass Action {\n  constructor(json) {\n      _.merge(this, json);\n\n      var comps = this.type.split(\":\");\n      if(comps.length > 0) {\n        this.repeatable = true;\n        this.repeatType = comps[0]; // 'watch' or 'poll'\n        this.repeatVerb = comps[1]; // http verb\n        this.repeatFrequency = comps[2];\n      }\n  }\n}\n;class Note extends Item {\n\n  constructor(json_obj) {\n    super(json_obj);\n\n    if(!this.tags) {\n      this.tags = [];\n    }\n  }\n\n  mapContentToLocalProperties(contentObject) {\n    super.mapContentToLocalProperties(contentObject)\n    this.title = contentObject.title;\n    this.text = contentObject.text;\n  }\n\n  referenceParams() {\n    var references = _.map(this.tags, function(tag){\n      return {uuid: tag.uuid, content_type: tag.content_type};\n    })\n    return references;\n  }\n\n  structureParams() {\n    var params = {\n      title: this.title,\n      text: this.text\n    };\n\n    _.merge(params, super.structureParams());\n    return params;\n  }\n\n  addItemAsRelationship(item) {\n    if(item.content_type == \"Tag\") {\n      if(!_.find(this.tags, item)) {\n        this.tags.push(item);\n      }\n    }\n    super.addItemAsRelationship(item);\n  }\n\n  removeItemAsRelationship(item) {\n    if(item.content_type == \"Tag\") {\n      _.pull(this.tags, item);\n    }\n    super.removeItemAsRelationship(item);\n  }\n\n  removeFromRelationships() {\n    this.tags.forEach(function(tag){\n      _.pull(tag.notes, this);\n      tag.dirty = true;\n    })\n  }\n\n  static filterDummyNotes(notes) {\n    var filtered = notes.filter(function(note){return note.dummy == false || note.dummy == null});\n    return filtered;\n  }\n\n  referencesAffectedBySharingChange() {\n    return super.referencesAffectedBySharingChange();\n  }\n\n  get hasOnePublicTag() {\n    for (var tag of this.tags) {\n      if(tag.isPublic()) {\n        return true\n      }\n    }\n    return false;\n  }\n\n  safeText() {\n    return this.text || \"\";\n  }\n\n  safeTitle() {\n    return this.title || \"\";\n  }\n\n  toJSON() {\n    return {uuid: this.uuid}\n  }\n\n  isSharedIndividually() {\n    return this.presentation_name;\n  }\n\n  isPublic() {\n    return super.isPublic() || this.hasOnePublicTag;\n  }\n\n  get content_type() {\n    return \"Note\";\n  }\n}\n;class Tag extends Item {\n\n  constructor(json_obj) {\n    super(json_obj);\n\n    if(!this.notes) {\n      this.notes = [];\n    }\n  }\n\n  mapContentToLocalProperties(contentObject) {\n    super.mapContentToLocalProperties(contentObject)\n    this.title = contentObject.title;\n  }\n\n  referenceParams() {\n    var references = _.map(this.notes, function(note){\n      return {uuid: note.uuid, content_type: note.content_type};\n    })\n    return references;\n  }\n\n  structureParams() {\n    var params = {\n      title: this.title\n    };\n\n    _.merge(params, super.structureParams());\n    return params;\n  }\n\n  addItemAsRelationship(item) {\n    if(item.content_type == \"Note\") {\n      if(!_.find(this.notes, item)) {\n        this.notes.unshift(item);\n      }\n    }\n    super.addItemAsRelationship(item);\n  }\n\n  removeItemAsRelationship(item) {\n    if(item.content_type == \"Note\") {\n      _.pull(this.notes, item);\n    }\n    super.removeItemAsRelationship(item);\n  }\n\n  removeFromRelationships() {\n    this.notes.forEach(function(note){\n      _.pull(note.tags, this);\n      note.dirty = true;\n    })\n  }\n\n  get content_type() {\n    return \"Tag\";\n  }\n\n  referencesAffectedBySharingChange() {\n    return this.notes;\n  }\n}\n;class User {\n  constructor(json_obj) {\n    _.merge(this, json_obj);\n  }\n}\n;angular.module('app.frontend')\n  .provider('apiController', function () {\n\n    function domainName()  {\n      var domain_comps = location.hostname.split(\".\");\n      var domain = domain_comps[domain_comps.length - 2] + \".\" + domain_comps[domain_comps.length - 1];\n      return domain;\n    }\n\n    var url;\n\n    this.defaultServerURL = function() {\n      if(!url) {\n        url = localStorage.getItem(\"server\");\n        if(!url) {\n          url = \"https://n3.standardnotes.org\";\n        }\n      }\n      return url;\n    }\n\n\n    this.$get = function($rootScope, Restangular, modelManager, ngDialog) {\n        return new ApiController($rootScope, Restangular, modelManager, ngDialog);\n    }\n\n    function ApiController($rootScope, Restangular, modelManager, ngDialog) {\n\n      this.setUser = function(user) {\n        this.user = user;\n      }\n\n      /*\n      Config\n      */\n\n      this.getServer = function() {\n        if(!url) {\n          url = localStorage.getItem(\"server\");\n          if(!url) {\n            url = \"https://n3.standardnotes.org\";\n            this.setServer(url);\n          }\n        }\n        return url;\n      }\n\n      this.setServer = function(url, refresh) {\n        localStorage.setItem(\"server\", url);\n        if(refresh) {\n          window.location.reload();\n        }\n      }\n\n\n      /*\n      Auth\n      */\n\n      this.getAuthParamsForEmail = function(email, callback) {\n        var request = Restangular.one(\"auth\", \"params\");\n        request.get({email: email}).then(function(response){\n          callback(response.plain());\n        })\n        .catch(function(response){\n          console.log(\"Error getting current user\", response);\n          callback(response.data);\n        })\n      }\n\n      this.getCurrentUser = function(callback) {\n        if(!localStorage.getItem(\"jwt\")) {\n          callback(null);\n          return;\n        }\n        Restangular.one(\"users/current\").get().then(function(response){\n          var user = response.plain();\n          callback(user);\n        }.bind(this))\n        .catch(function(response){\n          console.log(\"Error getting current user\", response);\n          callback(response.data);\n        })\n      }\n\n      this.login = function(email, password, callback) {\n        this.getAuthParamsForEmail(email, function(authParams){\n          if(!authParams) {\n            callback(null);\n            return;\n          }\n          Neeto.crypto.computeEncryptionKeysForUser(_.merge({email: email, password: password}, authParams), function(keys){\n            this.setMk(keys.mk);\n            var request = Restangular.one(\"auth/sign_in\");\n            var params = {password: keys.pw, email: email};\n            _.merge(request, params);\n            request.post().then(function(response){\n              localStorage.setItem(\"jwt\", response.token);\n              callback(response);\n            })\n            .catch(function(response){\n              callback(response.data);\n            })\n          }.bind(this));\n        }.bind(this))\n      }\n\n      this.register = function(email, password, callback) {\n        Neeto.crypto.generateInitialEncryptionKeysForUser({password: password, email: email}, function(keys){\n          this.setMk(keys.mk);\n          keys.mk = null;\n          var request = Restangular.one(\"auth\");\n          var params = _.merge({password: keys.pw, email: email}, keys);\n          _.merge(request, params);\n          request.post().then(function(response){\n            localStorage.setItem(\"jwt\", response.token);\n            callback(response);\n          })\n          .catch(function(response){\n            callback(response.data);\n          })\n        }.bind(this));\n      }\n\n      this.changePassword = function(user, current_password, new_password) {\n          this.getAuthParamsForEmail(email, function(authParams){\n            if(!authParams) {\n              callback(null);\n              return;\n            }\n            Neeto.crypto.computeEncryptionKeysForUser(_.merge({password: current_password, email: user.email}, authParams), function(currentKeys) {\n              Neeto.crypto.computeEncryptionKeysForUser(_.merge({password: new_password, email: user.email}, authParams), function(newKeys){\n                var data = {};\n                data.current_password = currentKeys.pw;\n                data.password = newKeys.pw;\n                data.password_confirmation = newKeys.pw;\n\n                var user = this.user;\n\n                this._performPasswordChange(currentKeys, newKeys, function(response){\n                  if(response && !response.error) {\n                    // this.showNewPasswordForm = false;\n                    // reencrypt data with new mk\n                    this.reencryptAllItemsAndSave(user, newKeys.mk, currentKeys.mk, function(success){\n                      if(success) {\n                        this.setMk(newKeys.mk);\n                        alert(\"Your password has been changed and your data re-encrypted.\");\n                      } else {\n                        // rollback password\n                        this._performPasswordChange(newKeys, currentKeys, function(response){\n                          alert(\"There was an error changing your password. Your password has been rolled back.\");\n                          window.location.reload();\n                        })\n                      }\n                    }.bind(this));\n                  } else {\n                    // this.showNewPasswordForm = false;\n                    alert(\"There was an error changing your password. Please try again.\");\n                  }\n                }.bind(this))\n              }.bind(this));\n            }.bind(this));\n          }.bind(this));\n      }\n\n      this._performPasswordChange = function(email, current_keys, new_keys, callback) {\n        var request = Restangular.one(\"auth\");\n        var params = {password: new_keys.pw, password_confirmation: new_keys.pw, current_password: current_keys.pw, email: email};\n        _.merge(request, params);\n        request.patch().then(function(response){\n          callback(response);\n        })\n      }\n\n\n      /*\n      User\n      */\n\n      this.setUsername = function(user, username, callback) {\n        var request = Restangular.one(\"users\", user.uuid);\n        request.username = username;\n        request.patch().then(function(response){\n          callback(response.plain());\n        })\n      }\n\n      /*\n      Ensures that if encryption is disabled, all local items are uncrypted,\n      and that if it's enabled, that all local items are encrypted\n      */\n      this.verifyEncryptionStatusOfAllItems = function(user, callback) {\n        var allItems = user.filteredItems();\n        var itemsNeedingUpdate = [];\n        allItems.forEach(function(item){\n          if(!item.isPublic()) {\n            if(item.encryptionEnabled() && !item.isEncrypted()) {\n              itemsNeedingUpdate.push(item);\n            }\n          } else {\n            if(item.isEncrypted()) {\n              itemsNeedingUpdate.push(item);\n            }\n          }\n        }.bind(this))\n\n        if(itemsNeedingUpdate.length > 0) {\n          console.log(\"verifying encryption, items need updating\", itemsNeedingUpdate);\n          this.saveBatchItems(user, itemsNeedingUpdate, callback)\n        }\n      }\n\n\n\n      /*\n      Items\n      */\n\n      this.syncWithOptions = function(callback, options = {}) {\n        if(!this.user.uuid) {\n          this.writeItemsToLocalStorage(function(responseItems){\n            this.handleItemsResponse(responseItems);\n            modelManager.clearDirtyItems();\n            if(callback) {\n              callback();\n            }\n          }.bind(this))\n          return;\n        }\n\n        var dirtyItems = modelManager.getDirtyItems();\n        var request = Restangular.one(\"items/sync\");\n        request.items = _.map(dirtyItems, function(item){\n          return this.createRequestParamsForItem(item, options.additionalFields);\n        }.bind(this));\n\n        console.log(\"syncing items\", request.items);\n\n        if(this.syncToken) {\n          request.sync_token = this.syncToken;\n        }\n\n        request.post().then(function(response) {\n          modelManager.clearDirtyItems();\n          this.syncToken = response.sync_token;\n          $rootScope.$broadcast(\"sync:updated_token\", this.syncToken);\n\n          this.handleItemsResponse(response.retrieved_items, null);\n          // merge only metadata for saved items\n          var omitFields = [\"content\", \"enc_item_key\", \"auth_hash\"];\n          this.handleItemsResponse(response.saved_items, omitFields);\n\n          if(callback) {\n            callback(response);\n          }\n        }.bind(this))\n        .catch(function(response){\n          console.log(\"Sync error: \", response);\n          callback(null);\n        })\n      }\n\n      this.sync = function(callback) {\n        this.syncWithOptions(callback, undefined);\n      }\n\n      this.handleItemsResponse = function(responseItems, omitFields) {\n        this.decryptItems(responseItems);\n        return modelManager.mapResponseItemsToLocalModelsOmittingFields(responseItems, omitFields);\n      }\n\n      this.createRequestParamsForItem = function(item, additionalFields) {\n        return this.paramsForItem(item, !item.isPublic(), additionalFields, false);\n      }\n\n      this.paramsForItem = function(item, encrypted, additionalFields, forExportFile) {\n        var itemCopy = _.cloneDeep(item);\n\n        console.assert(!item.dummy, \"Item is dummy, should not have gotten here.\", item.dummy)\n\n        var params = {uuid: item.uuid, content_type: item.content_type,\n          presentation_name: item.presentation_name, deleted: item.deleted};\n\n        if(encrypted) {\n          this.encryptSingleItem(itemCopy, this.retrieveMk());\n          params.content = itemCopy.content;\n          params.enc_item_key = itemCopy.enc_item_key;\n          params.auth_hash = itemCopy.auth_hash;\n        }\n        else {\n          params.content = forExportFile ? itemCopy.content : \"000\" + Neeto.crypto.base64(JSON.stringify(itemCopy.createContentJSONFromProperties()));\n          if(!forExportFile) {\n            params.enc_item_key = null;\n            params.auth_hash = null;\n          }\n        }\n\n        if(additionalFields) {\n          _.merge(params, _.pick(item, additionalFields));\n        }\n\n        return params;\n      }\n\n      this.shareItem = function(item, callback) {\n        if(!this.user.uuid) {\n          alert(\"You must be signed in to share.\");\n          return;\n        }\n\n        var shareFn = function() {\n          item.presentation_name = \"_auto_\";\n          var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);\n          needsUpdate.forEach(function(needingUpdate){\n            needingUpdate.dirty = true;\n          })\n          this.sync();\n        }.bind(this)\n\n        if(!this.user.username) {\n          ngDialog.open({\n            template: 'frontend/modals/username.html',\n            controller: 'UsernameModalCtrl',\n            resolve: {\n              user: function() {return this.user}.bind(this),\n              callback: function() {\n                return shareFn;\n              }\n            },\n            className: 'ngdialog-theme-default',\n            disableAnimation: true\n          });\n        } else {\n          shareFn();\n        }\n      }\n\n      this.unshareItem = function(item, callback) {\n        item.presentation_name = null;\n        var needsUpdate = [item].concat(item.referencesAffectedBySharingChange() || []);\n        needsUpdate.forEach(function(needingUpdate){\n          needingUpdate.dirty = true;\n        })\n        this.sync(null);\n      }\n\n      /*\n      Import\n      */\n\n      this.importJSONData = function(jsonString, callback) {\n        var data = JSON.parse(jsonString);\n        modelManager.mapResponseItemsToLocalModels(data.items);\n        modelManager.items.forEach(function(item){\n          item.dirty = true;\n        })\n        this.syncWithOptions(callback, {additionalFields: [\"created_at\", \"updated_at\"]});\n      }\n\n      /*\n      Export\n      */\n\n      this.itemsDataFile = function() {\n        var textFile = null;\n        var makeTextFile = function (text) {\n          var data = new Blob([text], {type: 'text/json'});\n\n          // If we are replacing a previously generated file we need to\n          // manually revoke the object URL to avoid memory leaks.\n          if (textFile !== null) {\n            window.URL.revokeObjectURL(textFile);\n          }\n\n          textFile = window.URL.createObjectURL(data);\n\n          // returns a URL you can use as a href\n          return textFile;\n        }.bind(this);\n\n        var items = _.map(modelManager.items, function(item){\n          return _.omit(this.paramsForItem(item, false, [\"created_at\", \"updated_at\"], true), [\"deleted\"]);\n        }.bind(this));\n\n        var data = {\n          items: items\n        }\n\n        return makeTextFile(JSON.stringify(data, null, 2 /* pretty print */));\n      }\n\n\n\n      /*\n      Merging\n      */\n      this.mergeLocalDataRemotely = function(user, callback) {\n        var request = Restangular.one(\"users\", user.uuid).one(\"merge\");\n        var tags = user.tags;\n        request.items = user.items;\n        request.items.forEach(function(item){\n          if(item.tag_id) {\n            var tag = tags.filter(function(tag){return tag.uuid == item.tag_id})[0];\n            item.tag_name = tag.title;\n          }\n        })\n        request.post().then(function(response){\n          callback();\n          localStorage.removeItem('user');\n        })\n      }\n\n\n\n\n\n\n      this.staticifyObject = function(object) {\n        return JSON.parse(JSON.stringify(object));\n      }\n\n      this.writeItemsToLocalStorage = function(callback) {\n        var items = _.map(modelManager.items, function(item){\n          return this.paramsForItem(item, false, [\"created_at\", \"updated_at\"], false)\n        }.bind(this));\n        console.log(\"writing items to local\", items);\n        this.writeToLocalStorage('items', items);\n        callback(items);\n      }\n\n      this.writeToLocalStorage = function(key, value) {\n        localStorage.setItem(key, angular.toJson(value));\n      }\n\n      this.loadLocalItemsAndUser = function() {\n        var user = {};\n        var items = JSON.parse(localStorage.getItem('items')) || [];\n        items = this.handleItemsResponse(items);\n        Item.sortItemsByDate(items);\n        user.items = items;\n        user.shouldMerge = true;\n        return user;\n      }\n\n      /*\n      Drafts\n      */\n\n      this.saveDraftToDisk = function(draft) {\n        localStorage.setItem(\"draft\", JSON.stringify(draft));\n      }\n\n      this.clearDraft = function() {\n        localStorage.removeItem(\"draft\");\n      }\n\n      this.getDraft = function() {\n        var draftString = localStorage.getItem(\"draft\");\n        if(!draftString || draftString == 'undefined') {\n          return null;\n        }\n        return new Note(JSON.parse(draftString));\n      }\n\n\n      /*\n      Encrpytion\n      */\n\n      this.retrieveMk = function() {\n        if(!this.mk) {\n          this.mk = localStorage.getItem(\"mk\");\n        }\n        return this.mk;\n      }\n\n      this.setMk = function(mk) {\n        localStorage.setItem('mk', mk);\n      }\n\n      this.signout = function() {\n        localStorage.removeItem(\"jwt\");\n        localStorage.removeItem(\"mk\");\n      }\n\n      this.encryptSingleItem = function(item, masterKey) {\n        var item_key = null;\n        if(item.enc_item_key) {\n          item_key = Neeto.crypto.decryptText(item.enc_item_key, masterKey);\n        } else {\n          item_key = Neeto.crypto.generateRandomEncryptionKey();\n          item.enc_item_key = Neeto.crypto.encryptText(item_key, masterKey);\n        }\n\n        var ek = Neeto.crypto.firstHalfOfKey(item_key);\n        var ak = Neeto.crypto.secondHalfOfKey(item_key);\n        var encryptedContent = \"001\" + Neeto.crypto.encryptText(JSON.stringify(item.createContentJSONFromProperties()), ek);\n        var authHash = Neeto.crypto.hmac256(encryptedContent, ak);\n\n        item.content = encryptedContent;\n        item.auth_hash = authHash;\n        item.local_encryption_scheme = \"1.0\";\n      }\n\n       this.decryptSingleItem = function(item, masterKey) {\n         var item_key = Neeto.crypto.decryptText(item.enc_item_key, masterKey);\n\n         var ek = Neeto.crypto.firstHalfOfKey(item_key);\n         var ak = Neeto.crypto.secondHalfOfKey(item_key);\n         var authHash = Neeto.crypto.hmac256(item.content, ak);\n         if(authHash !== item.auth_hash || !item.auth_hash) {\n           console.log(\"Authentication hash does not match.\")\n           return;\n         }\n\n         var content = Neeto.crypto.decryptText(item.content.substring(3, item.content.length), ek);\n         item.content = content;\n       }\n\n       this.decryptItems = function(items) {\n         var masterKey = this.retrieveMk();\n         for (var item of items) {\n           if(item.deleted == true) {\n             continue;\n           }\n\n           if(item.content.substring(0, 3) == \"001\" && item.enc_item_key) {\n             // is encrypted\n             this.decryptSingleItem(item, masterKey);\n           } else {\n             // is base64 encoded\n             item.content = Neeto.crypto.base64Decode(item.content.substring(3, item.content.length))\n           }\n         }\n       }\n\n       this.reencryptAllItemsAndSave = function(user, newMasterKey, oldMasterKey, callback) {\n         var items = user.filteredItems();\n         items.forEach(function(item){\n           if(item.content.substring(0, 3) == \"001\" && item.enc_item_key) {\n             // first decrypt item_key with old key\n             var item_key = Neeto.crypto.decryptText(item.enc_item_key, oldMasterKey);\n             // now encrypt item_key with new key\n             item.enc_item_key = Neeto.crypto.encryptText(item_key, newMasterKey);\n           }\n         });\n\n         this.saveBatchItems(user, items, function(success) {\n           callback(success);\n         }.bind(this));\n       }\n     }\n});\n;angular\n  .module('app.frontend')\n  .directive('mbAutofocus', ['$timeout', function($timeout) {\n    return {\n      restrict: 'A',\n      scope: {\n        shouldFocus: \"=\"\n      },\n      link : function($scope, $element) {\n        $timeout(function() {\n          if($scope.shouldFocus) {\n            $element[0].focus();\n          }\n        });\n      }\n    }\n  }]);\n;angular\n  .module('app.frontend')\n  .directive('draggable', function() {\n  return  {\n    scope: {\n      note: \"=\"\n    },\n    link: function(scope, element) {\n      // this gives us the native JS object\n      var el = element[0];\n\n      el.draggable = true;\n\n      el.addEventListener(\n        'dragstart',\n        function(e) {\n          e.dataTransfer.effectAllowed = 'move';\n          e.dataTransfer.setData('Note', JSON.stringify(scope.note));\n          this.classList.add('drag');\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'dragend',\n        function(e) {\n          this.classList.remove('drag');\n          return false;\n        },\n        false\n      );\n    }\n  }\n});\n\nangular\n  .module('app.frontend')\n  .directive('droppable', function() {\n  return {\n    scope: {\n      drop: '&',\n      bin: '=',\n      tag: \"=\"\n    },\n    link: function(scope, element) {\n      // again we need the native object\n      var el = element[0];\n\n      el.addEventListener(\n        'dragover',\n        function(e) {\n          e.dataTransfer.dropEffect = 'move';\n          // allows us to drop\n          if (e.preventDefault) e.preventDefault();\n          this.classList.add('over');\n          return false;\n        },\n        false\n      );\n\n      var counter = 0;\n\n      el.addEventListener(\n        'dragenter',\n        function(e) {\n          counter++;\n          this.classList.add('over');\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'dragleave',\n        function(e) {\n          counter--;\n           if (counter === 0) {\n             this.classList.remove('over');\n           }\n          return false;\n        },\n        false\n      );\n\n      el.addEventListener(\n        'drop',\n        function(e) {\n          // Stops some browsers from redirecting.\n          if (e.stopPropagation) e.stopPropagation();\n\n          this.classList.remove('over');\n\n          var binId = this.uuid;\n          var note = new Note(JSON.parse(e.dataTransfer.getData('Note')));\n          scope.$apply(function(scope) {\n            var fn = scope.drop();\n            if ('undefined' !== typeof fn) {\n              fn(e, scope.tag, note);\n            }\n          });\n\n          return false;\n        },\n        false\n      );\n    }\n  }\n});\n;angular\n  .module('app.frontend')\n  .directive('fileChange', function() {\n    return {\n     restrict: 'A',\n     scope: {\n       handler: '&'\n     },\n     link: function (scope, element) {\n      element.on('change', function (event) {\n        scope.$apply(function(){\n          scope.handler({files: event.target.files});\n        });\n      });\n     }\n    };\n});\n;angular\n  .module('app.frontend')\n  .directive('lowercase', function() {\n    return {\n      require: 'ngModel',\n      link: function(scope, element, attrs, modelCtrl) {\n        var lowercase = function(inputValue) {\n          if (inputValue == undefined) inputValue = '';\n          var lowercased = inputValue.toLowerCase();\n          if (lowercased !== inputValue) {\n            modelCtrl.$setViewValue(lowercased);\n            modelCtrl.$render();\n          }\n          return lowercased;\n        }\n        modelCtrl.$parsers.push(lowercase);\n        lowercase(scope[attrs.ngModel]);\n      }\n    };\n  });\n;angular\n  .module('app.frontend')\n  .directive('selectOnClick', ['$window', function ($window) {\n    return {\n        restrict: 'A',\n        link: function (scope, element, attrs) {\n            element.on('focus', function () {\n                if (!$window.getSelection().toString()) {\n                    // Required for mobile Safari\n                    this.setSelectionRange(0, this.value.length)\n                }\n            });\n        }\n    };\n}]);\n;angular\n  .module('app.frontend')\n  .directive('note', function($timeout) {\n    return {\n      restrict: 'E',\n      controller: 'SingleNoteCtrl',\n      templateUrl: \"frontend/directives/note.html\",\n      scope: {\n        note: \"=\"\n      },\n    }\n  })\n  .controller('SingleNoteCtrl', function ($rootScope, $scope, $state, markdownRenderer) {\n    $scope.renderedContent = function() {\n      return markdownRenderer.renderHtml(markdownRenderer.renderedContentForText($scope.note.text));\n    }\n  });\n;/**\n * AngularJS directive that simulates the effect of typing on a text editor - with a blinking cursor.\n * This directive works as an attribute to any HTML element, and it changes the speed/delay of its animation.\n *\n * There's also a simple less file included for basic styling of the dialog, which can be overridden.\n * The config object also lets the user define custom CSS classes for the modal.\n *\n *  How to use:\n *\n *  Just add the desired text to the 'text' attribute of the element and the directive takes care of the rest.\n *  The 'text' attribute can be a single string or an array of string. In case an array is passed, the string\n *  on each index is erased so the next item can be printed. When the last index is reached, that string stays\n *  on the screen. (So if you want to erase the last string, just push an empty string to the end of the array)\n *\n * These are the optional preferences:\n *  - initial delay: set an 'initial-delay' attribute for the element\n *  - type delay: set a 'type-delay' attribute for the element\n *  - erase delay: set a 'erase-delay' attribute for the element\n *  - specify cursor : set a 'cursor' attribute for the element, specifying which cursor to use\n *  - turn off cursor blinking: set the 'blink-cursor' attribute  to \"false\"\n *  - cursor blinking speed: set a 'blink-delay' attribute for the element\n *  - scope callback: pass the desired scope callback as the 'callback-fn' attribute of the element\n *\n * Note:\n * Each time/delay value should be set either on seconds (1s) or milliseconds (1000)\n *\n * Dependencies:\n * The directive needs the css file provided in order to replicate the cursor blinking effect.\n */\n\n\nangular\n    .module('app.frontend').directive('typewrite', ['$timeout', function ($timeout) {\n        function linkFunction($scope, $element, $attrs) {\n            var timer = null,\n                initialDelay = $attrs.initialDelay ? getTypeDelay($attrs.initialDelay) : 200,\n                typeDelay = $attrs.typeDelay || 200,\n                eraseDelay = $attrs.eraseDelay || typeDelay / 2,\n                blinkDelay = $attrs.blinkDelay ? getAnimationDelay($attrs.blinkDelay) : false,\n                cursor = $attrs.cursor || '|',\n                blinkCursor = typeof $attrs.blinkCursor !== 'undefined' ? $attrs.blinkCursor === 'true' : true,\n                currentText,\n                textArray,\n                running,\n                auxStyle;\n\n\n\n            if ($scope.text) {\n                if ($scope.text instanceof Array) {\n                    textArray = $scope.text;\n                    currentText = textArray[0];\n                } else {\n                    currentText = $scope.text;\n                }\n            }\n            if (typeof $scope.start === 'undefined' || $scope.start) {\n                typewrite();\n            }\n\n            function typewrite() {\n                timer = $timeout(function () {\n                    updateIt($element, 0, 0, currentText);\n                }, initialDelay);\n            }\n\n            function updateIt(element, charIndex, arrIndex, text) {\n                if (charIndex <= text.length) {\n                    updateValue(element, text.substring(0, charIndex) + cursor);\n                    charIndex++;\n                    timer = $timeout(function () {\n                        updateIt(element, charIndex, arrIndex, text);\n                    }, typeDelay);\n                    return;\n                } else {\n                    charIndex--;\n\n                    if($scope.iterationCallback) {\n                      $scope.iterationCallback()(arrIndex);\n                    }\n\n                    // check if it's an array\n                    if (textArray && arrIndex < textArray.length - 1) {\n                        timer = $timeout(function () {\n                            cleanAndRestart(element, charIndex, arrIndex, textArray[arrIndex]);\n                        }, $scope.iterationDelay);\n                    } else {\n                        if ($scope.callbackFn) {\n                            $scope.callbackFn();\n                        }\n                        blinkIt(element, charIndex, currentText);\n                    }\n                }\n            }\n\n            function blinkIt(element, charIndex) {\n                var text = element.text().substring(0, element.text().length - 1);\n                if (blinkCursor) {\n                    if (blinkDelay) {\n                        auxStyle = '-webkit-animation:blink-it steps(1) ' + blinkDelay + ' infinite;-moz-animation:blink-it steps(1) ' + blinkDelay + ' infinite ' +\n                            '-ms-animation:blink-it steps(1) ' + blinkDelay + ' infinite;-o-animation:blink-it steps(1) ' + blinkDelay + ' infinite; ' +\n                            'animation:blink-it steps(1) ' + blinkDelay + ' infinite;';\n                        updateValue(element, text.substring(0, charIndex) + '<span class=\"blink\" style=\"' + auxStyle + '\">' + cursor + '</span>');\n                    } else {\n                        updateValue(element, text.substring(0, charIndex) + '<span class=\"blink\">' + cursor + '</span>');\n                    }\n                } else {\n                    updateValue(element, text.substring(0, charIndex));\n                }\n            }\n\n            function cleanAndRestart(element, charIndex, arrIndex, currentText) {\n              if(charIndex == 0) {\n                if($scope.prebeginFn) {\n                  $scope.prebeginFn()();\n                }\n              }\n                if (charIndex > 0) {\n                    currentText = currentText.slice(0, -1);\n                    // element.html(currentText.substring(0, currentText.length - 1) + cursor);\n                    updateValue(element, currentText + cursor);\n                    charIndex--;\n                    timer = $timeout(function () {\n                        cleanAndRestart(element, charIndex, arrIndex, currentText);\n                    }, eraseDelay);\n                    return;\n                } else {\n                    arrIndex++;\n                    currentText = textArray[arrIndex];\n                    timer = $timeout(function () {\n                        updateIt(element, 0, arrIndex, currentText);\n                    }, typeDelay);\n                }\n            }\n\n            function getTypeDelay(delay) {\n                if (typeof delay === 'string') {\n                    return delay.charAt(delay.length - 1) === 's' ? parseInt(delay.substring(0, delay.length - 1), 10) * 1000 : +delay;\n                } else {\n                    return false;\n                }\n            }\n\n            function getAnimationDelay(delay) {\n                if (typeof delay === 'string') {\n                    return delay.charAt(delay.length - 1) === 's' ? delay : parseInt(delay.substring(0, delay.length - 1), 10) / 1000;\n                }\n            }\n\n            function updateValue(element, value) {\n                if (element.prop('nodeName').toUpperCase() === 'INPUT') {\n                    return element.val(value);\n                }\n                return element.html(value);\n            }\n\n            $scope.$on('$destroy', function () {\n                if (timer) {\n                    $timeout.cancel(timer);\n                }\n            });\n\n            $scope.$watch('start', function (newVal) {\n                if (!running && newVal) {\n                    running = !running;\n                    typewrite();\n                }\n            });\n\n            $scope.$watch('text', function (newVal, oldVal) {\n              if(!(newVal instanceof Array)) {\n                currentText = newVal;\n                typewrite();\n              }\n            });\n        }\n\n        return {\n            restrict: 'A',\n            link: linkFunction,\n            replace: true,\n            scope: {\n                text: '=',\n                callbackFn: '&',\n                iterationCallback: '&',\n                iterationDelay: '=',\n                prebeginFn: '&',\n                start: '='\n            }\n        };\n\n    }]);\n;class ExtensionManager {\n\n  constructor(Restangular, modelManager) {\n      this.Restangular = Restangular;\n      this.modelManager = modelManager;\n      this.extensions = [];\n      this.enabledRepeatActions = [];\n      this.enabledRepeatActionUrls = localStorage.getItem(\"enabled_ext_urls\") || [];\n  }\n\n  addExtension(url) {\n    console.log(\"Registering URL\", url);\n    this.Restangular.oneUrl(url, url).get().then(function(response){\n      console.log(\"get response\", response.plain());\n      var extension = new Extension(response.plain());\n      this.registerExtension(extension);\n    }.bind(this))\n    .catch(function(response){\n      console.log(\"Error registering extension\", response);\n    })\n  }\n\n  registerExtension(extension) {\n      this.extensions.push(extension);\n      console.log(\"registered extensions\", this.extensions);\n  }\n\n  executeAction(action, extension, callback) {\n    if(action.type == \"get\") {\n      this.Restangular.oneUrl(action.url, action.url).get().then(function(response){\n        console.log(\"Execute action response\", response);\n        var items = response.items;\n        this.modelManager.mapResponseItemsToLocalModels(items);\n        callback(items);\n      }.bind(this))\n    }\n  }\n\n  isRepeatActionEnabled(action) {\n    return this.enabledRepeatActionUrls.includes(action.url);\n  }\n\n  disableRepeatAction(action, extension) {\n    console.log(\"Disabling action\", action);\n    _.pull(this.enabledRepeatActionUrls, action.url);\n    _.pull(this.enabledRepeatActions, action);\n    this.modelManager.removeItemObserver(action.url);\n    console.assert(this.isRepeatActionEnabled(action) == false);\n  }\n\n  enableRepeatAction(action, extension) {\n    console.log(\"Enabling repeat action\", action);\n\n    this.enabledRepeatActionUrls.push(action.url);\n    this.enabledRepeatActions.push(action);\n\n    if(action.repeatType == \"watch\") {\n      for(var structure of action.structures) {\n        this.modelManager.addItemObserver(action.url, structure.type, function(changedItems){\n          this.triggerWatchAction(action, changedItems);\n        }.bind(this))\n      }\n    }\n  }\n\n  triggerWatchAction(action, changedItems) {\n    console.log(\"Watch action triggered\", action, changedItems);\n    if(action.repeatFrequency > 0) {\n      var lastExecuted = action.lastExecuted;\n      var diffInSeconds = (new Date() - lastExecuted)/1000;\n      if(diffInSeconds < action.repeatFrequency) {\n        console.log(\"too frequent, returning\");\n        return;\n      }\n    }\n\n    if(action.repeatVerb == \"post\") {\n      var request = this.Restangular.oneUrl(action.url, action.url);\n      request.items = changedItems.map(function(item){\n        var params = {uuid: item.uuid, content_type: item.content_type, content: item.content};\n        return params;\n      })\n      request.post().then(function(response){\n        console.log(\"watch action response\", response);\n        action.lastExecuted = new Date();\n      })\n    }\n  }\n\n}\n\nangular.module('app.frontend').service('extensionManager', ExtensionManager);\n;angular.module('app.frontend')\n  .filter('appDate', function ($filter) {\n      return function (input) {\n          return input ? $filter('date')(new Date(input), 'MM/dd/yyyy', 'UTC') : '';\n      };\n  })\n  .filter('appDateTime', function ($filter) {\n      return function (input) {\n          return input ? $filter('date')(new Date(input), 'MM/dd/yyyy h:mm a') : '';\n      };\n  });\n;;angular.module('app.frontend')\n  .service('markdownRenderer', function ($sce) {\n\n    marked.setOptions({\n      breaks: true,\n      sanitize: true\n    });\n\n    this.renderedContentForText = function(text) {\n      if(!text || text.length == 0) {\n        return \"\";\n      }\n      return marked(text);\n    }\n\n    this.renderHtml = function(html_code) {\n      return $sce.trustAsHtml(html_code);\n    };\n\n\n  });\n;class ModelManager {\n\n  constructor() {\n    this.notes = [];\n    this.tags = [];\n    this.changeObservers = [];\n    this.items = [];\n  }\n\n  findItem(itemId) {\n    return _.find(this.items, {uuid: itemId});\n  }\n\n  mapResponseItemsToLocalModels(items) {\n    return this.mapResponseItemsToLocalModelsOmittingFields(items, null);\n  }\n\n  mapResponseItemsToLocalModelsOmittingFields(items, omitFields) {\n    var models = []\n    for (var json_obj of items) {\n      json_obj = _.omit(json_obj, omitFields || [])\n      var item = this.findItem(json_obj[\"uuid\"]);\n      if(json_obj[\"deleted\"] == true) {\n          if(item) {\n            this.removeItemLocally(item)\n          }\n          continue;\n      }\n\n      _.omit(json_obj, omitFields);\n\n      if(!item) {\n        item = this.createItem(json_obj);\n      } else {\n        item.updateFromJSON(json_obj);\n      }\n\n      models.push(item)\n    }\n    this.addItems(models)\n    this.resolveReferences()\n    return models;\n  }\n\n  createItem(json_obj) {\n    if(json_obj.content_type == \"Note\") {\n      return new Note(json_obj);\n    } else if(json_obj.content_type == \"Tag\") {\n      return new Tag(json_obj);\n    } else {\n      return new Item(json_obj);\n    }\n  }\n\n  addItems(items) {\n    this.items = _.uniq(this.items.concat(items));\n\n    items.forEach(function(item){\n      if(item.content_type == \"Tag\") {\n        if(!_.find(this.tags, {uuid: item.uuid})) {\n          this.tags.unshift(item);\n        }\n      } else if(item.content_type == \"Note\") {\n        if(!_.find(this.notes, {uuid: item.uuid})) {\n          this.notes.unshift(item);\n        }\n      }\n    }.bind(this))\n\n  }\n\n  addItem(item) {\n    this.addItems([item])\n  }\n\n  itemsForContentType(contentType) {\n    return this.items.filter(function(item){\n      return item.content_type == contentType;\n    });\n  }\n\n  resolveReferences() {\n    for(var item of this.items) {\n      var contentObject = item.contentObject;\n      if(!contentObject.references) {\n        continue;\n      }\n\n      for(var reference of contentObject.references) {\n        var referencedItem = this.findItem(reference.uuid);\n        if(referencedItem) {\n          item.addItemAsRelationship(referencedItem);\n        } else {\n          console.log(\"Unable to find item:\", reference.uuid);\n        }\n      }\n    }\n\n    this.notes.push.apply(this.notes, _.difference(this.itemsForContentType(\"Note\"), this.notes));\n    Item.sortItemsByDate(this.notes);\n\n    this.tags.push.apply(this.tags, _.difference(this.itemsForContentType(\"Tag\"), this.tags));\n    this.tags.forEach(function(tag){\n      Item.sortItemsByDate(tag.notes);\n    })\n  }\n\n  addItemObserver(id, type, callback) {\n    this.changeObservers.push({id: id, type: type, callback: callback});\n  }\n\n  removeItemObserver(id) {\n    _.remove(this.changeObservers, _.find(this.changeObservers, {id: id}));\n  }\n\n  get filteredNotes() {\n    return Note.filterDummyNotes(this.notes);\n  }\n\n  notifyObserversOfSyncCompletion() {\n    for(var observer of this.changeObservers) {\n      var changedItems = this.dirtyItems.filter(function(item){return item.content_type == observer.type});\n      console.log(\"observer:\", observer, \"items\", changedItems);\n      observer.callback(changedItems);\n    }\n  }\n\n  getDirtyItems() {\n    return this.items.filter(function(item){return item.dirty == true && !item.dummy})\n  }\n\n  clearDirtyItems() {\n    this.notifyObserversOfSyncCompletion();\n\n    this.getDirtyItems().forEach(function(item){\n      item.dirty = false;\n    })\n  }\n\n  setItemToBeDeleted(item) {\n    item.deleted = true;\n    item.dirty = true;\n    item.removeFromRelationships();\n  }\n\n  removeItemLocally(item) {\n    _.pull(this.items, item);\n\n    if(item.content_type == \"Tag\") {\n      _.pull(this.tags, item);\n    } else if(item.content_type == \"Note\") {\n      _.pull(this.notes, item);\n    }\n  }\n\n  /*\n  Relationships\n  */\n\n  createRelationshipBetweenItems(itemOne, itemTwo) {\n    itemOne.addItemAsRelationship(itemTwo);\n    itemTwo.addItemAsRelationship(itemOne);\n\n    itemOne.dirty = true;\n    itemTwo.dirty = true;\n  }\n\n  removeRelationshipBetweenItems(itemOne, itemTwo) {\n    itemOne.removeItemAsRelationship(itemTwo);\n    itemTwo.removeItemAsRelationship(itemOne);\n\n    itemOne.dirty = true;\n    itemTwo.dirty = true;\n  }\n}\n\nangular.module('app.frontend').service('modelManager', ModelManager);\n;angular.module('app.frontend')\n  .service('serverSideValidation', function ($sce) {\n    // Show validation errors in form.\n    this.showErrors = function (formErrors, form) {\n      angular.forEach(formErrors, function (errors, key) {\n        if (typeof form[key] !== 'undefined') {\n          form[key].$setDirty();\n          form[key].$setValidity('server', false);\n          form[key].$error.server = $sce.trustAsHtml(errors.join(', '));\n        }\n      });\n    };\n\n    // Get validation errors from server response and show them in form.\n    this.parseErrors = function (response, form) {\n      if (response.status === 422) {\n        this.showErrors(response.data, form);\n      }\n    };\n});\n"]}
\ No newline at end of file