register process works

lib/src/app.dart

@@ -3,8 +3,8 @@ import 'views/home_view.dart';
 import 'views/register_view.dart';
 import 'utils.dart';
 import 'package:flutter/material.dart';
-// import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
-// import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 
 import 'settings/settings_controller.dart';
 
@@ -34,16 +34,17 @@ class _MyAppState extends State<MyApp> {
       builder: (BuildContext context, Widget? child) {
         return MaterialApp(
           restorationScopeId: 'app',
-          // localizationsDelegates: const [
+          localizationsDelegates: const [
-          //   AppLocalizations.delegate,
+            AppLocalizations.delegate,
-          //   GlobalMaterialLocalizations.delegate,
+            GlobalMaterialLocalizations.delegate,
-          //   GlobalWidgetsLocalizations.delegate,
+            GlobalWidgetsLocalizations.delegate,
-          //   GlobalCupertinoLocalizations.delegate,
+            GlobalCupertinoLocalizations.delegate,
-          // ],
-          supportedLocales: const [
-            Locale('en', ''), // English, no country code
           ],
-          onGenerateTitle: (BuildContext context) => "Connect!",
+          supportedLocales: const [
+            Locale('en', ''),
+            Locale('de', ''),
+          ],
+          onGenerateTitle: (BuildContext context) => "twonly",
           theme: ThemeData(
               colorScheme:
                   ColorScheme.fromSeed(seedColor: const Color(0xFF57CC99)),

lib/src/localization/app_de.arb

@@ -0,0 +1,6 @@
+{
+    "@@locale": "de",
+    "registerTitle": "Willkommen bei twonly",
+    "@registerTitle": {},
+    "registerSlogan": "Sende Bilder in Echtzeit an Freunde und sei dir sicher, dass nur ihr sie sehen könnt."
+}

lib/src/localization/app_en.arb

@@ -1,7 +1,22 @@
 {
-  "appTitle": "connect",
   "@@locale": "en",
-  "@appTitle": {
+  "registerTitle": "Welcome to twonly!",
-    "description": "The title of the application"
+  "registerSlogan": "Send pictures to friends in real time and be sure you are the only people who can see them.",
-  }
+  "registerUsernameSlogan": "Please select a username so others can find you!",
+  "registerUsernameDecoration": "Username",
+  "registerUsernameLimits": "Username must be 4 to 12 characters long, consisting only of letters (a-z) and numbers (0-9).",
+  "registerSubmitButton": "Register now!",
+  "errorUnknown": "An unexpected error has occurred. Please try again later.",
+  "errorBadRequest": "The request could not be understood by the server due to malformed syntax. Please check your input and try again.",
+  "errorTooManyRequests": "You have made too many requests in a short period. Please wait a moment before trying again.",
+  "errorInternalError": "The server encountered an internal error. Please try again later.",
+  "errorInvalidInvitationCode": "The invitation code you provided is invalid. Please check the code and try again.",
+  "errorUsernameAlreadyTaken": "The username you want to use is already taken. Please choose a different username.",
+  "errorSignatureNotValid": "The provided signature is not valid. Please check your credentials and try again.",
+  "errorUsernameNotFound": "The username you entered does not exist. Please check the spelling or create a new account.",
+  "errorUsernameNotValid": "The username you provided does not meet the required criteria. Please choose a valid username.",
+  "errorInvalidPublicKey": "The public key you provided is invalid. Please check the key and try again.",
+  "errorSessionAlreadyAuthenticated": "You are already logged in. Please log out if you want to log in with a different account.",
+  "errorSessionNotAuthenticated": "Your session is not authenticated. Please log in to continue.",
+  "errorOnlyOneSessionAllowed": "Only one active session is allowed per user. Please log out from other devices to continue."
 }

lib/src/providers/api_provider.dart

@@ -4,13 +4,27 @@ import 'dart:ffi';
 import 'dart:math';
 import 'dart:typed_data';
 import 'package:fixnum/fixnum.dart';
+import 'package:flutter/material.dart';
 
 import 'package:logging/logging.dart';
 import 'package:twonly/src/proto/api/client_to_server.pb.dart';
+import 'package:twonly/src/proto/api/error.pb.dart';
 import 'package:twonly/src/proto/api/server_to_client.pb.dart' as server;
 import 'package:twonly/src/signal/signal_helper.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:web_socket_channel/web_socket_channel.dart';
 
+class Result<T, E> {
+  final T? value;
+  final E? error;
+
+  bool get isSuccess => value != null;
+  bool get isError => error != null;
+
+  Result.success(this.value) : error = null;
+  Result.error(this.error) : value = null;
+}
+
 class ApiProvider {
   ApiProvider({required this.apiUrl});
 
@@ -77,7 +91,7 @@ class ApiProvider {
         log.shout("Timeout for message $seq");
         return null;
       }
-      await Future.delayed(Duration(milliseconds: 1));
+      await Future.delayed(Duration(milliseconds: 10));
     }
   }
 
@@ -101,21 +115,6 @@ class ApiProvider {
     return await _waitForResponse(seq);
   }
 
-  String? _getErrorMsg(server.ServerToClient msg) {
-    // if (msg.containsKey("Ok")) {
-    //   return null;
-    // }
-    // if (msg.containsKey("Error")) {
-    //   if (msg["Error"] != null) {
-    //     if (msg["Error"].containsKey("AlertUser")) {
-    //       return msg["Error"]["AlertUser"];
-    //     }
-    //   }
-    //   return "There was an unknown error :/";
-    // }
-    return null;
-  }
-
   ClientToServer createClientToServerFromHandshake(Handshake handshake) {
     // Create the V0 message
     var v0 = V0()
@@ -128,27 +127,63 @@ class ApiProvider {
     return clientToServer;
   }
 
-  Future<String?> register(
+  static String getLocalizedString(BuildContext context, ErrorCode code) {
-      String username,
+    switch (code.toString()) {
-      // Uint8List publicIdentityKey,
+      case "Unknown":
-      // Uint8List signedPrekey,
+        return AppLocalizations.of(context)!.errorUnknown;
-      // Uint8List signedPrekeySignature,
+      case "BadRequest":
-      String? inviteCode) async {
+        return AppLocalizations.of(context)!.errorBadRequest;
+      case "TooManyRequests":
+        return AppLocalizations.of(context)!.errorTooManyRequests;
+      case "InternalError":
+        return AppLocalizations.of(context)!.errorInternalError;
+      case "InvalidInvitationCode":
+        return AppLocalizations.of(context)!.errorInvalidInvitationCode;
+      case "UsernameAlreadyTaken":
+        return AppLocalizations.of(context)!.errorUsernameAlreadyTaken;
+      case "SignatureNotValid":
+        return AppLocalizations.of(context)!.errorSignatureNotValid;
+      case "UsernameNotFound":
+        return AppLocalizations.of(context)!.errorUsernameNotFound;
+      case "UsernameNotValid":
+        return AppLocalizations.of(context)!.errorUsernameNotValid;
+      case "InvalidPublicKey":
+        return AppLocalizations.of(context)!.errorInvalidPublicKey;
+      case "SessionAlreadyAuthenticated":
+        return AppLocalizations.of(context)!.errorSessionAlreadyAuthenticated;
+      case "SessionNotAuthenticated":
+        return AppLocalizations.of(context)!.errorSessionNotAuthenticated;
+      case "OnlyOneSessionAllowed":
+        return AppLocalizations.of(context)!.errorOnlyOneSessionAllowed;
+      default:
+        return code.toString(); // Fallback for unrecognized keys
+    }
+  }
+
+  Result _asResult(server.ServerToClient msg) {
+    if (msg.v0.response.hasOk()) {
+      return Result.success(msg.v0.response.ok);
+    } else {
+      return Result.error(msg.v0.response.error);
+    }
+  }
+
+  Future<Result> register(String username, String? inviteCode) async {
     final reqSignal = await SignalHelper.getRegisterData();
 
     if (reqSignal == null) {
-      print("NULL");
+      return Result.error(
-      return null;
+          "There was an fatal error. Try reinstalling the app.");
     }
 
-    print(reqSignal);
     var register = Handshake_Register()
       ..username = username
+      ..publicIdentityKey = reqSignal["identityKey"]
       ..signedPrekey = reqSignal["signedPreKey"]?["key"]
       ..signedPrekeySignature = reqSignal["signedPreKey"]?["signature"]
       ..signedPrekeyId = Int64(reqSignal["signedPreKey"]?["id"]);
 
-    if (inviteCode != null) {
+    if (inviteCode != null && inviteCode != "") {
       register.inviteCode = inviteCode;
     }
     // Create the Handshake message
@@ -157,8 +192,8 @@ class ApiProvider {
 
     final resp = await _sendRequestV0(req);
     if (resp == null) {
-      return "Server is not reachable!";
+      return Result.error("Server is not reachable!");
     }
-    return _getErrorMsg(resp);
+    return _asResult(resp);
   }
 }

lib/src/utils.dart

@@ -1,9 +1,10 @@
 import 'dart:convert';
 import 'package:twonly/main.dart';
 import 'package:twonly/src/signal/signal_helper.dart';
+import 'package:twonly/src/providers/api_provider.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
-import 'model/signal_identity_json.dart';
 import 'model/user_data_json.dart';
+import 'package:logging/logging.dart';
 
 // Just a helper function to get the secure storage
 FlutterSecureStorage getSecureStorage() {
@@ -38,24 +39,25 @@ Future<UserData?> getUser() async {
 
 Future<bool> deleteLocalUserData() async {
   final storage = getSecureStorage();
-  await storage.delete(key: "user");
+  await storage.delete(key: "user_data");
+  await storage.delete(key: "signal_identity");
   return true;
 }
 
-Future<String?> createNewUser(String username, String inviteCode) async {
+Future<Result> createNewUser(String username, String inviteCode) async {
   final storage = getSecureStorage();
 
   await SignalHelper.createIfNotExistsSignalIdentity();
 
   // TODO: API call to server to check username and inviteCode
-  final check = await apiProvider.register(username, inviteCode);
+  final res = await apiProvider.register(username, inviteCode);
-  if (check != null) {
+
-    return check;
+  if (res.isSuccess) {
+    print("Got user_id ${res.value}");
+    final userData = UserData(
+        userId: res.value.userid, username: username, displayName: username);
+    storage.write(key: "user_data", value: jsonEncode(userData));
   }
 
-  print(check);
+  return res;
-
-  // await storage.write(key: "user_data", value: jsonEncode(userData));
-
-  return null;
 }

lib/src/views/register_view.dart

@@ -1,6 +1,9 @@
+import 'package:twonly/src/providers/api_provider.dart';
+
 import '../utils.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 class RegisterView extends StatefulWidget {
   const RegisterView({super.key, required this.callbackOnSuccess});
@@ -10,36 +13,12 @@ class RegisterView extends StatefulWidget {
   State<RegisterView> createState() => _RegisterViewState();
 }
 
-class MyButton extends StatelessWidget {
-  final void Function()? onTap;
-  final String text;
-  const MyButton({super.key, required this.onTap, required this.text});
-
-  @override
-  Widget build(BuildContext context) {
-    return GestureDetector(
-      onTap: onTap,
-      child: Container(
-        padding: const EdgeInsets.all(10),
-        decoration: BoxDecoration(
-          color: Theme.of(context).colorScheme.primary,
-          borderRadius: BorderRadius.circular(9),
-        ),
-        child: Center(
-          child: Text(
-            text,
-            textAlign: TextAlign.center,
-          ),
-        ),
-      ),
-    );
-  }
-}
-
 class _RegisterViewState extends State<RegisterView> {
   final TextEditingController usernameController = TextEditingController();
   final TextEditingController inviteCodeController = TextEditingController();
 
+  bool _isTryingToRegister = false;
+
   @override
   Widget build(BuildContext context) {
     InputDecoration getInputDecoration(hintText) {
@@ -48,77 +27,136 @@ class _RegisterViewState extends State<RegisterView> {
 
     return Scaffold(
       appBar: AppBar(
-        title: Text("Welcome to Connect!"),
+        title: Text(""),
       ),
       body: Padding(
           padding: EdgeInsets.all(10),
+          child: Padding(
+            padding: EdgeInsets.only(left: 10, right: 10),
             child: ListView(
               children: [
-              const SizedBox(height: 20),
+                const SizedBox(height: 50),
-              Center(
+                Text(
+                  AppLocalizations.of(context)!.registerTitle,
+                  textAlign: TextAlign.center,
+                  style: TextStyle(fontSize: 30),
+                ),
+                Padding(
+                  padding: EdgeInsets.symmetric(horizontal: 30),
                   child: Text(
-                  "You made the right decision using Connect which is like SnXpchat but encrypted using the Signal protocol.",
+                    AppLocalizations.of(context)!.registerSlogan,
+                    textAlign: TextAlign.center,
+                    style: TextStyle(fontSize: 12),
+                  ),
+                ),
+                const SizedBox(height: 60),
+                Center(
+                  child: Padding(
+                    padding: EdgeInsets.only(left: 10, right: 10),
+                    child: Text(
+                      AppLocalizations.of(context)!.registerUsernameSlogan,
                       textAlign: TextAlign.center,
                       style: TextStyle(fontSize: 15),
                     ),
                   ),
-              const SizedBox(height: 40),
-              Center(
-                child: Text(
-                  "Choice wisely, this username can't be changed. Only lowercase and numbers are allowed!",
-                  textAlign: TextAlign.center,
                 ),
-              ),
+                const SizedBox(height: 15),
-              const SizedBox(height: 10),
                 TextField(
                   controller: usernameController,
                   inputFormatters: [
-                    LengthLimitingTextInputFormatter(
+                    LengthLimitingTextInputFormatter(12),
-                        12), // Limit to 12 characters
+                    FilteringTextInputFormatter.allow(RegExp(r'[a-z0-9]')),
-                    FilteringTextInputFormatter.allow(RegExp(
-                        r'[a-z0-9]')), // Allow only lowercase letters and numbers
                   ],
-                  decoration: getInputDecoration("Username")),
+                  style: TextStyle(fontSize: 17),
-              const SizedBox(height: 15),
+                  decoration: getInputDecoration(
+                    AppLocalizations.of(context)!.registerUsernameDecoration,
+                  ),
+                ),
+                const SizedBox(height: 5),
                 Center(
+                  child: Padding(
+                    padding: EdgeInsets.only(left: 10, right: 10),
                     child: Text(
-                  "To protect this small experimental project you need an invitation code! To get one just ask the right person!",
+                      AppLocalizations.of(context)!.registerUsernameLimits,
                       textAlign: TextAlign.center,
+                      style: TextStyle(fontSize: 7),
                     ),
                   ),
-              const SizedBox(height: 10),
-              TextField(
-                  controller: inviteCodeController,
-                  decoration: getInputDecoration("Invitation code")),
-              const SizedBox(height: 25),
-              Center(
-                child: Text(
-                  "Where is the password? There is none! So make a backup of your Connect identity in the settings or you will lose your access if you lose your device!",
-                  textAlign: TextAlign.center,
                 ),
-              ),
+                // const SizedBox(height: 15),
-              const SizedBox(height: 30),
+                // Center(
+                //   child: Text(
+                //     "To protect this small experimental project you need an invitation code! To get one just ask the right person!",
+                //     textAlign: TextAlign.center,
+                //   ),
+                // ),
+                // const SizedBox(height: 10),
+                // TextField(
+                //     controller: inviteCodeController,
+                //     decoration: getInputDecoration("Voucher code")),
+                // const SizedBox(height: 25),
+                // Center(
+                //   child: Text(
+                //     "Please ",
+                //     textAlign: TextAlign.center,
+                //   ),
+                // ),
+                const SizedBox(height: 50),
+                // Padding(
+                //   padding: EdgeInsets.symmetric(horizontal: 10),
+                Column(children: [
                   FilledButton.icon(
-                icon: Icon(Icons.group),
+                    icon: _isTryingToRegister
+                        ? SizedBox(
+                            width: 18,
+                            height: 18,
+                            child: CircularProgressIndicator(
+                              color: Colors.black,
+                              strokeWidth: 2,
+                            ),
+                          )
+                        : Icon(Icons.group),
                     onPressed: () async {
-                  final success = await createNewUser(
+                      setState(() {
+                        _isTryingToRegister = true;
+                      });
+                      final res = await createNewUser(
                           usernameController.text, inviteCodeController.text);
-                  if (success == null) {
+                      setState(() {
+                        _isTryingToRegister = false;
+                      });
+                      if (res.isSuccess) {
                         widget.callbackOnSuccess();
                         return;
                       }
-                  showAlertDialog(context, "Oh no!", success);
+                      final errMsg =
+                          ApiProvider.getLocalizedString(context, res.error);
+                      showAlertDialog(context, "Oh no!", errMsg);
                     },
-                label: Text("Komm in die Gruppe!"),
+                    style: ButtonStyle(
+                        padding: WidgetStateProperty.all<EdgeInsets>(
+                          EdgeInsets.symmetric(vertical: 10, horizontal: 30),
                         ),
+                        backgroundColor: _isTryingToRegister
+                            ? WidgetStateProperty.all<MaterialColor>(
+                                Colors.grey)
+                            : null),
+                    label: Text(
+                      AppLocalizations.of(context)!.registerSubmitButton,
+                      style: TextStyle(fontSize: 17),
+                    ),
+                  ),
+                  const SizedBox(height: 10),
                   OutlinedButton.icon(
                       onPressed: () {
                         showAlertDialog(context, "Coming soon",
                             "This feature is not yet implemented! Just create a new account :/");
                       },
                       label: Text("Restore identity")),
-              // MyButton(onTap: () {}, text: "Komm in die Gruppe!")
+                ]),
+                //   ),
               ],
+            ),
           )),
     );
   }

pubspec.lock

@@ -475,7 +475,7 @@ packages:
     source: hosted
     version: "4.5.2"
   intl:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: intl
       sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf

pubspec.yaml

@@ -21,6 +21,7 @@ dependencies:
   flutter_secure_storage: ^9.2.2
   google_fonts: ^6.2.1
   image: ^4.3.0
+  intl: any
   json_annotation: ^4.9.0
   libsignal_protocol_dart: ^0.7.1
   logging: ^1.3.0