Implement long term token support

src/app.config.ts

@@ -18,7 +18,7 @@ const appConfig = {
         realm: 'universis',
         clientId: 'aristomate',
         redirectUri: 'https://applink.aristomate.gr/authsso/callback',
-        scope: 'students:read',
+        scope: 'students:read offline_access',
         isMobile: isMobile,
         // Use proxy for web
         tokenUrl: isMobile ? undefined : 'https://applink.aristomate.gr/api/auth/token'

src/lib/authentication/OIDCClient.ts

@@ -371,23 +371,14 @@ class OIDCClient {
   }
 
   isRefreshable() {
+    // With offline access scope, refresh token can't expire
     const refreshToken = this.getItemFromStore('refresh_token');
-    if(refreshToken){
-        const decodedToken = jwtDecode(refreshToken);
-        const now = Date.now() / 1000;
-        return (decodedToken.exp as number) > now;
-    }
-    return false;
+    return !!refreshToken;
   }
 
   // Check if user is authenticated
   isAuthenticated() {
-    const refreshToken = this.getItemFromStore('refresh_token');
-    if (!refreshToken) {
-      return false;
-    }
-    return this.isRefreshable();
-
+    return this.isRefreshable();    
   }
 
   // Make authenticated API request
@@ -437,4 +428,4 @@ const response = await client.fetch('https://api.example.com/data');
 
 // Logout
 await client.logout();
-*/
+*/

src/lib/storage/capacitorPersistedStore.ts

@@ -1,5 +1,5 @@
 import { Preferences } from '@capacitor/preferences';
-import type { Writable } from 'svelte/store';
+import { get, type Writable } from 'svelte/store';
 // import { writable, type Writable } from 'svelte/store';
 import { persisted } from 'svelte-persisted-store';
 import type { GetResult } from '@capacitor/preferences';
@@ -69,6 +69,7 @@ class CapacitorPersistedStore<T> {
      * @param value - The new value of the store.
      */
     public set(value: T) {
+        Preferences.set({ key: this.key, value: JSON.stringify(value) });
         this.store.set(value);
     }
 
@@ -78,6 +79,8 @@ class CapacitorPersistedStore<T> {
      */
     public update(updater: (value: T) => T) {
         this.store.update(updater);
+        const newValue = get(this.store);
+        Preferences.set({ key: this.key, value: JSON.stringify(newValue) });
     }
 }
 

src/routes/persistedStoreDeclarations.ts

@@ -7,6 +7,7 @@ import { userCreds, userTokens, useAlternativeLogin } from "$stores/credentials.
 import { scheduledNotifications } from "$lib/calendarNotifications/notificationsStore";
 import { loginStore } from "$src/lib/authentication/loginStore";
 import { userCredsFlag } from "$components/webmailLogin/userCredsFlagStore";
+import { get } from "svelte/store";
 
 const persistedStores: CapacitorPersistedStore<any>[] = [
     toggles,
@@ -24,5 +25,5 @@ const persistedStores: CapacitorPersistedStore<any>[] = [
 
 export async function loadPersistedStores() {
     console.log('Loading persisted stores');
-    persistedStores.forEach(async (store) => await store.loadFromStorage());
-}
+    persistedStores.forEach(async (store) => { await store.loadFromStorage();});
+}