Done

1 files changed, 21 insertions, 1 deletions

diff --git a/src/utils/common.ts b/src/utils/common.ts
index 6314cc13..8efe1f6a 100644
--- a/src/utils/common.ts
+++ b/src/utils/common.ts
@@ -1,6 +1,8 @@
+import {NotificationType} from './../types/types';
 import moment from 'moment';
-import {AsyncStorage, Linking} from 'react-native';
+import {Linking} from 'react-native';
 import {BROWSABLE_SOCIAL_URLS, TOGGLE_BUTTON_TYPE} from '../constants';
+import AsyncStorage from '@react-native-community/async-storage';
 
 export const getToggleButtonText: (
   buttonType: string,
@@ -72,3 +74,21 @@ export const checkImageUploadStatus = (statusMap: object) => {
   }
   return true;
 };
+
+export const haveUnreadNotifications = async (
+  notifications: NotificationType[],
+): Promise<boolean> => {
+  for (const n of notifications) {
+    const notificationDate = moment(n.timestamp);
+    const prevLastViewed = await AsyncStorage.getItem('notificationLastViewed');
+    const lastViewed: moment.Moment | undefined =
+      prevLastViewed == null ? moment.unix(0) : moment(prevLastViewed);
+    const dateAge = getDateAge(notificationDate);
+    if (dateAge === 'unknown') {
+      continue;
+    }
+    const unread = lastViewed ? lastViewed.diff(notificationDate) < 0 : false;
+    if (unread) return true;
+  }
+  return false;
+};