From e715b1192b42efe222cb3ab358a86f5c7774689a Mon Sep 17 00:00:00 2001
From: Bugfix Jacques <jacques@iconica.nl>
Date: Wed, 20 Sep 2023 11:45:55 +0200
Subject: [PATCH] feat: register function can now return a nullable string

Works like a validator
---
 example/lib/example_registration_repository.dart | 4 ++--
 lib/src/config/registration_options.dart         | 2 +-
 lib/src/registration_screen.dart                 | 5 +++--
 lib/src/service/registration_repository.dart     | 2 +-
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/example/lib/example_registration_repository.dart b/example/lib/example_registration_repository.dart
index caee325..b554d96 100644
--- a/example/lib/example_registration_repository.dart
+++ b/example/lib/example_registration_repository.dart
@@ -9,8 +9,8 @@ import 'package:flutter_registration/flutter_registration.dart';
 
 class ExampleRegistrationRepository with RegistrationRepository {
   @override
-  Future<bool> register(HashMap values) {
+  Future<String?> register(HashMap values) {
     debugPrint('register: $values');
-    return Future.value(true);
+    return Future.value(null);
   }
 }
diff --git a/lib/src/config/registration_options.dart b/lib/src/config/registration_options.dart
index a4593b8..b8f89aa 100644
--- a/lib/src/config/registration_options.dart
+++ b/lib/src/config/registration_options.dart
@@ -20,7 +20,7 @@ class RegistrationOptions {
 
   final RegistrationTranslations registrationTranslations;
   final List<AuthStep> registrationSteps;
-  final VoidCallback? onError;
+  final void Function(String error)? onError;
   final VoidCallback afterRegistration;
   final RegistrationRepository registrationRepository;
   final AppBar Function(String title)? customAppbarBuilder;
diff --git a/lib/src/registration_screen.dart b/lib/src/registration_screen.dart
index 8407db2..f3e87e9 100644
--- a/lib/src/registration_screen.dart
+++ b/lib/src/registration_screen.dart
@@ -23,10 +23,11 @@ class RegistrationScreen extends StatelessWidget {
     try {
       var registered =
           await registrationOptions.registrationRepository.register(values);
-      if (registered) {
+
+      if (registered == null) {
         registrationOptions.afterRegistration();
       } else {
-        registrationOptions.onError?.call();
+        registrationOptions.onError?.call(registered);
         onError();
       }
     } catch (e) {
diff --git a/lib/src/service/registration_repository.dart b/lib/src/service/registration_repository.dart
index c8d58a3..a1295cc 100644
--- a/lib/src/service/registration_repository.dart
+++ b/lib/src/service/registration_repository.dart
@@ -5,5 +5,5 @@
 import 'dart:collection';
 
 mixin RegistrationRepository {
-  Future<bool> register(HashMap values);
+  Future<String?> register(HashMap values);
 }