feat(notifications): Add extra filter to normaliser to return only un…

…read notifications

Discourse doesn't provide a way to ask only for unread notifications, instead, it provides a way to
know if there is unread notifications and then pull the recent ones which lead to the need to having
a way to further filter those notifications to show only unread ones after get all

src/notifications/__tests__/normaliser.spec.js

@@ -10,4 +10,14 @@ describe("normaliser", () => {
  expect(result.alerts).toEqual([notifications[1], notifications[3]]);
  expect(result.messages).toEqual([notifications[0], notifications[2]]);
  });
+
+ it("returns only unread notifications", () => {
+ const notificationsUpdated = [...notifications];
+ notificationsUpdated[3].read = true;
+ notificationsUpdated[2].read = true;
+ const result = normaliseUserNotifications(notificationsUpdated);
+
+ expect(result.alerts).toEqual([notifications[1]]);
+ expect(result.messages).toEqual([notifications[0]]);
+ });
 });

src/notifications/normaliser.js

@@ -1,13 +1,16 @@
 // @flow
 
+import filter from "lodash/filter";
 import includes from "lodash/includes";
 import { notificationTypes } from "./helpers";
 
 const getMessages = notifications => {
  const messagesTypes = [notificationTypes[5], notificationTypes[6]];
 
- return notifications.filter(
- n => messagesTypes.indexOf(notificationTypes[n.notification_type]) > -1
+ return filter(
+ notifications,
+ (n: Notification) =>
+ messagesTypes.indexOf(notificationTypes[n.notification_type]) > -1
  );
 };
 
@@ -18,7 +21,7 @@ export const normaliseUserNotifications = (
  const alerts = notifications.filter(n => !includes(messages, n));
 
  return {
- alerts,
- messages,
+ alerts: filter(alerts, { read: false }),
+ messages: filter(messages, { read: false }),
  };
 };