Create method to calculate whether or not user has attained all mystery equipment

test/spec/controllers/inventoryCtrlSpec.js

@@ -12,6 +12,7 @@ describe('Inventory Controller', function() {
       user = specHelper.newUser({
         balance: 4,
         items: {
+          gear: { owned: {} },
           eggs: { Cactus: 1 },
           hatchingPotions: { Base: 1 },
           food: { Meat: 1 },
@@ -155,4 +156,16 @@ describe('Inventory Controller', function() {
       expect(possibleValues).to.contain(cardsModalScope.cardMessage);
     });
   });
+
+  describe('#hasAllTimeTravelerItems', function() {
+    it('returns false if there are items left in the time traveler store', function() {
+      expect(scope.hasAllTimeTravelerItems()).to.eql(false);
+    });
+
+    it('returns true if there are no items left to purchase', inject(function(Content) {
+      sandbox.stub(Content, 'timeTravelerStore').returns({});
+
+      expect(scope.hasAllTimeTravelerItems()).to.eql(true);
+    }));
+  });
 });

website/public/js/controllers/inventoryCtrl.js

@@ -228,6 +228,13 @@ habitrpg.controller("InventoryCtrl",
       });
     };
 
+    $scope.hasAllTimeTravelerItems = function(items) {
+      var itemsLeftInTimeTravlerStore = Content.timeTravelerStore(user.items.gear.owned);
+      var keys = Object.keys(itemsLeftInTimeTravlerStore);
+
+      return keys.length === 0;
+    };
+
     function _updateDropAnimalCount(items) {
       $scope.petCount = Shared.count.beastMasterProgress(items.pets);
       $scope.mountCount = Shared.count.mountMasterProgress(items.mounts);

website/views/options/inventory/time-travelers.jade

@@ -20,7 +20,7 @@
 
   .row: .col-md-12
     .row: .col-md-6
-      .alert.alert-info(ng-if='_.isEmpty(Content.timeTravelerStore(user.items.gear.owned))')=env.t('timeTravelersAlreadyOwned')
+      .alert.alert-info(ng-if='hasAllTimeTravelerItems()')=env.t('timeTravelersAlreadyOwned')
 
     li.customize-menu.inventory-gear
       menu.pets-menu(label='{{::set.text}}', ng-repeat='set in Content.timeTravelerStore(user.items.gear.owned)')