v1.6.0/added support, cleanup webhook

app/public/background.js

@@ -19,6 +19,9 @@ HBO Now and HBO Max logos are trademark and intellectual property of WarnerMedia
 /* global chrome */
 /* global firebase */
 
+const APP_VERSION = '1.6.0';
+const APP_VERSION_STRING = APP_VERSION.replace(/\./g, '');
+
 const firebaseConfig = {
   apiKey: 'AIzaSyCJLuYpzXLDRmu2ttzFuSGmYcpFxqToWFU',
   authDomain: 'watch-party-crx.firebaseapp.com',
@@ -68,11 +71,40 @@ const sendAuth = async (sendResponse) => {
   sendResponse(firebase.auth().currentUser);
 };
 
-chrome.runtime.onInstalled.addListener(() => {
-  chrome.tabs.create({
-    url: 'https://www.chromewatchparty.com/welcome',
-    active: true,
-  });
+chrome.runtime.onInstalled.addListener((details) => { 
+  if (details.reason) {
+    if (details.reason === 'install') {
+      if (window.localStorage.getItem('watchPartyVersion')) {
+        if (window.localStorage.getItem('watchPartyVersion') !== APP_VERSION) {
+          chrome.tabs.create({
+            url: `http://www.chromewatchparty.com/changes/v${APP_VERSION}`,
+            active: true,
+          });
+        }
+      } else {
+        chrome.tabs.create({
+          url: 'https://www.chromewatchparty.com/welcome',
+          active: true,
+        });
+        window.localStorage.setItem('watchPartyVersion', APP_VERSION);
+      }
+    } else if (details.reason === 'update') {
+      if (window.localStorage.getItem('watchPartyVersion')) {
+        if (window.localStorage.getItem('watchPartyVersion') !== APP_VERSION) {
+          chrome.tabs.create({
+            url: `http://www.chromewatchparty.com/changes/v${APP_VERSION}`,
+            active: true,
+          });
+        }
+      } else {
+        chrome.tabs.create({
+          url: `http://www.chromewatchparty.com/changes/v${APP_VERSION}`,
+          active: true,
+        });
+        window.localStorage.setItem('watchPartyVersion', APP_VERSION);
+      }
+    }
+  }
 });
 
 chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {