Fix emergency banner handling

Author: RoyEJohnson

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@openstax/os-webview",
-    "version": "2.146.0",
+    "version": "2.146.1",
     "description": "OpenStax webview",
     "scripts": {
         "test": "jest --coverage ./test/src",

src/app/layouts/default/header/sticky-note/sticky-note.tsx

@@ -1,19 +1,12 @@
 import React from 'react';
 import RawHTML from '~/components/jsx-helpers/raw-html';
-import {usePutAway} from '../../shared';
+import {usePutAway, StickyDataWithBanner} from '../../shared';
 import './sticky-note.scss';
 
-export type StickyNoteProps = {
-    stickyData: {
-        mode: 'emergency';
-        emergency_content: string;
-    } | object | null;
-};
-
-export default function StickyNote({stickyData}: StickyNoteProps) {
+export default function StickyNote({stickyData}: {stickyData: StickyDataWithBanner | null}) {
     const [closed, PutAway] = usePutAway();
 
-    if (!stickyData || closed || !('emergency_content' in stickyData)) {
+    if (!stickyData || closed || stickyData.mode !== 'emergency') {
         return null;
     }
 

src/app/layouts/default/shared.tsx

@@ -15,11 +15,12 @@ type BannerInfo = {
 type StickyDataRaw = {
     start: string;
     expires: string;
-    emergency_expires: string;
+    emergency_expires: string | null;
+    emergency_content: string;
     show_popup: boolean;
 };
 
-type StickyDataWithBanner = StickyDataRaw & {
+export type StickyDataWithBanner = StickyDataRaw & {
     bannerInfo: BannerInfo;
     mode: 'emergency' | 'popup' | 'banner' | null;
 };
@@ -62,7 +63,7 @@ function getMode(stickyData: StickyDataRaw | null): 'emergency' | 'popup' | 'ban
         return null;
     }
 
-    const expireDate = new Date(stickyData.emergency_expires);
+    const expireDate = new Date(stickyData.emergency_expires ?? 0);
     const useEmergency = stickyData.emergency_expires && Date.now() < expireDate.getTime();
 
     if (useEmergency) {