feat: add notifications tray component (#1172)

Fixes: #1171

src/app/notifications/notifications.service.ts

@@ -3,7 +3,7 @@ import { Injectable } from '@angular/core';
 import { HttpClient, HttpParams } from '@angular/common/http';
 
 /** rxjs Imports */
-import { Observable } from 'rxjs';
+import { Observable, of } from 'rxjs';
 
 /**
  * Notification service.
@@ -26,4 +26,33 @@ export class NotificationsService {
     return this.http.get('/notifications', { params: httpParams });
   }
 
+  /**
+   * @returns {Observable<any>} Notifications.
+   */
+  updateNotifications(): Observable<any> {
+    return this.http.put('/notifications', { });
+  }
+
+  /**
+   * @returns {Observable<any>} Mock Unread Notifications for Testing.
+   */
+  getMockUnreadNotification(): Observable<any> {
+    const date = new Date();
+    return of({
+      'totalFilteredRecords': 1,
+      'pageItems': [
+        { 'id': Math.floor(Math.random() * 100),
+          'objectType': 'client',
+          'objectId': Math.floor(Math.random() * 10),
+          'action': 'clientCreated',
+          'actorId': 2,
+          'content': 'Client Created',
+          'isRead': false,
+          'isSystemGenerated': false,
+          'createdAt': `${date.toLocaleDateString()} ${date.getHours()}:${date.getMinutes()}:${date.getSeconds()}`
+        }
+      ]
+    });
+  }
+
 }