some more stubs, remove old app

backend/src/sdk/sdk-stub.ts

@@ -1,11 +1,50 @@
 import express from 'express';
+import expressSession from 'express-session';
+import crypto from 'node:crypto';
 
 // TODO: Use also express-session to make it work with getSessionID and session referencing
 const checkAuth = ( request: express.Request ) => {
     return true;
 }
 
+export interface AuthSDKConfig {
+    token: string;
+    name: string;
+    client: string;
+    backendURL: string;
+    failReturnURL: string;
+    useSecureCookie?: boolean;
+}
+
+declare module 'express-session' {
+    interface SessionData {
+        isAuth: boolean;
+        uid: string;
+        username: string;
+        email: string;
+        additionalData: object;
+    }
+}
+
+const routes = ( app: express.Application, 
+    check_user: ( uid: string ) => Promise<boolean>, 
+    save_user: ( uid: string, email: string, username: string ) => Promise<boolean>,
+    conf?: AuthSDKConfig
+): undefined => {
+    
+}
+
+const getUserData = ( request: express.Request ) => {
+    if ( !request.session.uid ) {
+        request.session.uid = crypto.randomUUID();
+        request.session.username = 'FOSS-Version';
+        request.session.email = 'example@example.com';
+    }
+    return { 'email': request.session.email, 'username': request.session.username, 'uid': request.session.uid, 'id': request.session.id };
+}
 
 export default {
-    checkAuth
+    checkAuth,
+    routes,
+    getUserData
 }

backend/src/sdk/store-sdk-stub.ts

@@ -3,9 +3,14 @@ const getSubscriptions = ( uid: string ) => {
         'id': 'com.janishutz.MusicPlayer.subscription',
         'expires': new Date().getTime() + 200000,
         'status': true
-    } ]
+    } ];
+}
+
+const configure = ( config: object ) => {
+
 }
 
 export default {
-    getSubscriptions
+    getSubscriptions,
+    configure
 }