Update routes.dart to automatically configure root url

lib/base/helpers/model_generator.dart

@@ -17,17 +17,29 @@ class ModelGenerator {
     final courses = List.generate(
       random.nextInt(5) + 1,
       (index) => Course(
-          id: index, name: 'Course$index', teachingTerm: 'W', year: 2023),
+        id: index,
+        name: 'Course$index',
+        teachingTerm: 'W',
+        year: 2023,
+      ),
     );
     final administeredCourses = List.generate(
       random.nextInt(3) + 1,
       (index) => Course(
-          id: index, name: 'Course$index', teachingTerm: 'W', year: 2023),
+        id: index,
+        name: 'Course$index',
+        teachingTerm: 'W',
+        year: 2023,
+      ),
     );
     final pinnedCourses = List.generate(
       random.nextInt(3) + 1,
       (index) => Course(
-          id: index, name: 'Course$index', teachingTerm: 'W', year: 2023),
+        id: index,
+        name: 'Course$index',
+        teachingTerm: 'W',
+        year: 2023,
+      ),
     );
     final settings = List.generate(
       random.nextInt(3) + 1,

lib/base/networking/api/auth_handler.dart

@@ -20,7 +20,7 @@ class AuthHandler {
     String username,
     String password,
   ) async {
-    const url = Routes.basicLogin;
+    var url = Routes.basicLogin;
     final cookieJar = CookieJar();
     final dio = Dio(
       BaseOptions(

lib/routes.dart

@@ -1,48 +1,42 @@
-// ignore_for_file: constant_identifier_names
+import 'dart:io';
+
+class AppConfig {
+  AppConfig._(); // Private constructor
+
+  // Determine the root URL based on the platform
+  // Used for development only. Once the api is deployed, this can be ignored.
+  static String get _rootUrl {
+    if (Platform.isAndroid) {
+      return 'http://10.0.2.2:8081/api';
+    } else if (Platform.isIOS) {
+      return 'http://localhost:8081/api';
+    }
+    throw UnsupportedError('Unsupported platform');
+  }
+
+  // AUTHENTICATION
+  static String get basicAuthUrl =>
+      '${_rootUrl.replaceFirst('/api', '')}/login';
+  static String get ssoAuthUrl => 'https://live.rbg.tum.de/saml/out';
+  static String get ssoRedirectUrl => 'https://live.rbg.tum.de';
 
-// NOTE: 10.0.2.2 is the android emulator's alias for the loopback address on
-//       the host machine. On iOS, use either localhost or the actual IP address
-//       of the host machine.
-
-// API ROOT URL
-const _ROOT_URL = 'http://10.0.2.2:8081/api';
-const _GRPC_HOST = '10.0.2.2';
-const _GRPC_PORT = 12544;
-
-// AUTHENTICATION
-const _BASIC_AUTH_URL = 'http://10.0.2.2:8081/login';
-const _SSO_AUTH_URL = 'https://live.rbg.tum.de/saml/out';
-const _SSO_REDIRECT_URL = 'https://live.rbg.tum.de';
-
-// COURSES
-const _COURSES_PATH = '/courses';
-const _COURSES_LIVE_PATH = '/courses/live';
-const _COURSES_USER_PATH = '/courses/user';
-const _COURSES_USER_PINNED_PATH = '/courses/user/pinned';
-const _COURSES_PUBLIC_PATH = '/courses/public';
-
-// SEMESTERS
-const _SEMESTERS_PATH = '/semesters';
+  // gRPC routes
+  static String get grpcHost {
+    return Platform.isAndroid
+        ? '10.0.2.2'
+        : 'localhost'; // Or host machine IP for iOS
+  }
 
-// USER AND SERVER NOTIFICATIONS
-const _NOTIFICATIONS_USER_PATH = '/notifications';
-const _NOTIFICATIONS_SERVER_PATH = '/notifications/server';
+  static const int grpcPort = 12544;
+}
 
 class Routes {
   // HTTP routes
-  static const basicLogin = _BASIC_AUTH_URL;
-  static const ssoLogin = _SSO_AUTH_URL;
-  static const ssoRedirect = _SSO_REDIRECT_URL;
-  static const courses = _ROOT_URL + _COURSES_PATH;
-  static const coursesLive = _ROOT_URL + _COURSES_LIVE_PATH;
-  static const coursesUser = _ROOT_URL + _COURSES_USER_PATH;
-  static const coursesUserPinned = _ROOT_URL + _COURSES_USER_PINNED_PATH;
-  static const coursesPublic = _ROOT_URL + _COURSES_PUBLIC_PATH;
-  static const semesters = _ROOT_URL + _SEMESTERS_PATH;
-  static const notificationsUser = _ROOT_URL + _NOTIFICATIONS_USER_PATH;
-  static const notificationsServer = _ROOT_URL + _NOTIFICATIONS_SERVER_PATH;
+  static String get basicLogin => AppConfig.basicAuthUrl;
+  static String get ssoLogin => AppConfig.ssoAuthUrl;
+  static String get ssoRedirect => AppConfig.ssoRedirectUrl;
 
-  // gRPC routes
-  static const grpcHost = _GRPC_HOST;
-  static const grpcPort = _GRPC_PORT;
+  // gRPC config
+  static String get grpcHost => AppConfig.grpcHost;
+  static const int grpcPort = AppConfig.grpcPort;
 }