Implement move to junk

src/js/controller/app/action-bar.js

@@ -1,5 +1,7 @@
 'use strict';
 
+var JUNK_FOLDER_TYPE = 'Junk';
+
 var ActionBarCtrl = function($scope, email, dialog, statusDisplay) {
 
     /**
@@ -8,7 +10,7 @@ var ActionBarCtrl = function($scope, email, dialog, statusDisplay) {
      * @param  {Object} destination The folder object where the message should be moved to
      */
     $scope.moveMessage = function(message, destination) {
-        if (!message) {
+        if (!message || !destination) {
             return;
         }
 
@@ -48,6 +50,21 @@ var ActionBarCtrl = function($scope, email, dialog, statusDisplay) {
         });
     };
 
+    /**
+     * Find the junk folder to mark a message as spam. If no junk folder is found, an error message will be displayed.
+     * @return {Object} The junk folder object tied to the account
+     */
+    $scope.getJunkFolder = function() {
+        var folder = _.findWhere($scope.account.folders, {
+            type: JUNK_FOLDER_TYPE
+        });
+        if (!folder) {
+            dialog.error(new Error('Spam folder not found!'));
+            return;
+        }
+        return folder;
+    };
+
     /**
      * Delete a message. This moves the message from the current folder to the trash folder,
      *     or if the current folder is the trash folder, the message will be purged.

src/tpl/action-bar.html

@@ -1,7 +1,7 @@
 <div class="action-bar" ng-controller="ActionBarCtrl">
   <div class="action-bar__primary">
     <button class="btn btn--light" wo-touch="state.read.open ? deleteMessage(state.mailList.selected) : deleteCheckedMessages()">Delete</button>
-    <button class="btn btn--light" disabled>Spam</button>
+    <button class="btn btn--light" wo-touch="state.read.open ? moveMessage(state.mailList.selected, getJunkFolder()) : moveCheckedMessages(getJunkFolder())">Spam</button>
     <button class="btn btn--light-dropdown" wo-dropdown="#dropdown-folder">
       <svg><use xlink:href="#icon-folder" /><title>Folder</title></svg>
       <svg class="btn__dropdown" role="presentation"><use xlink:href="#icon-dropdown" /></svg>

test/unit/controller/app/action-bar-ctrl-test.js

@@ -114,6 +114,29 @@ describe('Action Bar Controller unit test', function() {
         });
     });
 
+    describe('getJunkFolder', function() {
+        it('should work', function() {
+            scope.account = {
+                folders: [{
+                    type: 'Junk'
+                }]
+            };
+            var folder = scope.getJunkFolder();
+            expect(folder).to.exist;
+        });
+
+        it('should fail', function() {
+            scope.account = {
+                folders: [{
+                    type: 'NotJunk'
+                }]
+            };
+            var folder = scope.getJunkFolder();
+            expect(folder).to.not.exist;
+            expect(dialogMock.error.calledOnce).to.be.true;
+        });
+    });
+
     describe('markMessage', function() {
         it('should not move without a selected mail', function() {
             scope.markMessage();