From 2fa546e6b7354b02da2a17ccd75ad13143baa65e Mon Sep 17 00:00:00 2001
From: Julien Martin <julien.martin@ptits-pas.fr>
Date: Thu, 26 Feb 2026 21:02:40 +0100
Subject: [PATCH] fix(inscription AM): format NIR Corse + extraction message
 erreur API

Made-with: Cursor
---
 frontend/lib/services/auth_service.dart | 16 ++++++++++++++--
 frontend/lib/utils/nir_utils.dart       | 10 +++-------
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/frontend/lib/services/auth_service.dart b/frontend/lib/services/auth_service.dart
index 7a27c64..f9b0e75 100644
--- a/frontend/lib/services/auth_service.dart
+++ b/frontend/lib/services/auth_service.dart
@@ -184,8 +184,20 @@ class AuthService {
     }
 
     final decoded = response.body.isNotEmpty ? jsonDecode(response.body) : null;
-    final message = decoded is Map ? (decoded['message'] as String? ?? decoded['error'] as String?) : null;
-    throw Exception(message ?? 'Erreur lors de l\'inscription (${response.statusCode})');
+    final message = _extractErrorMessage(decoded, response.statusCode);
+    throw Exception(message);
+  }
+
+  /// Extrait le message d'erreur des réponses NestJS (message string, array, ou objet).
+  static String _extractErrorMessage(dynamic decoded, int statusCode) {
+    const fallback = 'Erreur lors de l\'inscription';
+    if (decoded == null || decoded is! Map) return '$fallback ($statusCode)';
+    final msg = decoded['message'];
+    if (msg == null) return decoded['error'] as String? ?? '$fallback ($statusCode)';
+    if (msg is String) return msg;
+    if (msg is List) return msg.map((e) => e.toString()).join('. ').trim();
+    if (msg is Map && msg['message'] != null) return msg['message'].toString();
+    return '$fallback ($statusCode)';
   }
 
   /// Rafraîchit le profil utilisateur depuis l'API
diff --git a/frontend/lib/utils/nir_utils.dart b/frontend/lib/utils/nir_utils.dart
index ea8d072..cfed04b 100644
--- a/frontend/lib/utils/nir_utils.dart
+++ b/frontend/lib/utils/nir_utils.dart
@@ -49,15 +49,11 @@ String nirToRaw(String normalized) {
   return s;
 }
 
-/// Formate pour affichage : 1 12 34 56 789 012-34 ou 1 12 34 2A 789 012-34
+/// Formate pour affichage : 1 12 34 56 789 012-34 ou 1 12 34 2A 789 012-34 (Corse).
 String formatNir(String raw) {
   final r = nirToRaw(raw);
   if (r.length < 15) return r;
-  final dept = r.substring(5, 7);
-  final isCorsica = dept == '2A' || dept == '2B';
-  if (isCorsica) {
-    return '${r.substring(0, 5)} ${r.substring(5, 7)} ${r.substring(7, 10)} ${r.substring(10, 13)}-${r.substring(13, 15)}';
-  }
+  // Même structure pour tous : sexe + année + mois + département + commune + ordre-clé.
   return '${r.substring(0, 1)} ${r.substring(1, 3)} ${r.substring(3, 5)} ${r.substring(5, 7)} ${r.substring(7, 10)} ${r.substring(10, 13)}-${r.substring(13, 15)}';
 }
 
@@ -67,7 +63,7 @@ bool _isFormatValid(String raw) {
   final dept = raw.substring(5, 7);
   final restDigits = raw.substring(0, 5) + (dept == '2A' ? '19' : dept == '2B' ? '18' : dept) + raw.substring(7, 15);
   if (!RegExp(r'^[12]\d{12}\d{2}$').hasMatch(restDigits)) return false;
-  return RegExp(r'^[12]\d{4}(?:\d{2}|2A|2B)\d{6}$').hasMatch(raw);
+  return RegExp(r'^[12]\d{4}(?:\d{2}|2A|2B)\d{8}$').hasMatch(raw);
 }
 
 /// Calcule la clé de contrôle (97 - (NIR13 mod 97)). Pour 2A→19, 2B→18.