Awful use of localstorage

web/src/app/Storage.js

@@ -0,0 +1,37 @@
+import {topicUrl} from "./utils";
+import Subscription from "./Subscription";
+
+const LocalStorage = {
+    getSubscriptions() {
+        const subscriptions = {};
+        const rawSubscriptions = localStorage.getItem('subscriptions');
+        if (rawSubscriptions === null) {
+            return {};
+        }
+        try {
+            const serializedSubscriptions = JSON.parse(rawSubscriptions);
+            serializedSubscriptions.forEach(s => {
+                const subscription = new Subscription(s.baseUrl, s.topic);
+                subscription.notifications = s.notifications;
+                subscriptions[topicUrl(s.baseUrl, s.topic)] = subscription;
+            });
+            return subscriptions;
+        } catch (e) {
+            console.log("LocalStorage", `Unable to deserialize subscriptions: ${e.message}`)
+            return {};
+        }
+    },
+    saveSubscriptions(subscriptions) {
+        const serializedSubscriptions = Object.keys(subscriptions).map(k => {
+            const subscription = subscriptions[k];
+            return {
+                baseUrl: subscription.baseUrl,
+                topic: subscription.topic,
+                notifications: subscription.notifications
+            }
+        });
+        localStorage.setItem('subscriptions', JSON.stringify(serializedSubscriptions));
+    }
+};
+
+export default LocalStorage;

web/src/app/WsConnection.js

@@ -1,10 +1,10 @@
 
 export default class WsConnection {
     id = '';
-    constructor(subscription, onNotification) {
+    constructor(subscription, onChange) {
         this.id = subscription.id;
         this.subscription = subscription;
-        this.onNotification = onNotification;
+        this.onChange = onChange;
         this.ws = null;
     }
     start() {
@@ -26,7 +26,7 @@ export default class WsConnection {
                 }
                 console.log('adding')
                 this.subscription.addNotification(data);
-                this.onNotification(this.subscription);
+                this.onChange(this.subscription);
             } catch (e) {
                 console.log(this.id, `[message] Error handling message: ${e}`);
             }