fix(auth): correctif login et parsing user (version stable)

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/models/user.dart

@@ -32,30 +32,42 @@ class AppUser {
   });
 
   factory AppUser.fromJson(Map<String, dynamic> json) {
+    final id = json['id']?.toString();
+    final email = json['email']?.toString();
+    final role = json['role']?.toString();
+    if (id == null || id.isEmpty) {
+      throw Exception('Profil invalide: id manquant');
+    }
+    if (email == null || email.isEmpty) {
+      throw Exception('Profil invalide: email manquant');
+    }
+    if (role == null || role.isEmpty) {
+      throw Exception('Profil invalide: rôle manquant');
+    }
     return AppUser(
-      id: json['id'] as String,
+      id: id,
-      email: json['email'] as String,
+      email: email,
-      role: json['role'] as String,
+      role: role,
       createdAt: json['cree_le'] != null
-          ? DateTime.parse(json['cree_le'] as String)
+          ? DateTime.tryParse(json['cree_le'].toString()) ?? DateTime.now()
           : (json['createdAt'] != null
-              ? DateTime.parse(json['createdAt'] as String)
+              ? DateTime.tryParse(json['createdAt'].toString()) ?? DateTime.now()
               : DateTime.now()),
       updatedAt: json['modifie_le'] != null
-          ? DateTime.parse(json['modifie_le'] as String)
+          ? DateTime.tryParse(json['modifie_le'].toString()) ?? DateTime.now()
           : (json['updatedAt'] != null
-              ? DateTime.parse(json['updatedAt'] as String)
+              ? DateTime.tryParse(json['updatedAt'].toString()) ?? DateTime.now()
               : DateTime.now()),
       changementMdpObligatoire:
-          json['changement_mdp_obligatoire'] as bool? ?? false,
+          json['changement_mdp_obligatoire'] == true,
-      nom: json['nom'] as String?,
+      nom: json['nom']?.toString(),
-      prenom: json['prenom'] as String?,
+      prenom: json['prenom']?.toString(),
-      statut: json['statut'] as String?,
+      statut: json['statut']?.toString(),
-      telephone: json['telephone'] as String?,
+      telephone: json['telephone']?.toString(),
-      photoUrl: json['photo_url'] as String?,
+      photoUrl: json['photo_url']?.toString(),
-      adresse: json['adresse'] as String?,
+      adresse: json['adresse']?.toString(),
-      ville: json['ville'] as String?,
+      ville: json['ville']?.toString(),
-      codePostal: json['code_postal'] as String?,
+      codePostal: json['code_postal']?.toString(),
     );
   }
 

frontend/lib/screens/auth/login_screen.dart

@@ -236,20 +236,20 @@ class _LoginPageState extends State<LoginScreen> with WidgetsBindingObserver {
                                   padding: const EdgeInsets.all(12),
                                   margin: const EdgeInsets.only(bottom: 15),
                                   decoration: BoxDecoration(
-                                    color: Colors.red[50],
+                                    color: Colors.red.shade50,
                                     borderRadius: BorderRadius.circular(10),
-                                    border: Border.all(color: Colors.red[300]!),
+                                    border: Border.all(color: Colors.red.shade300),
                                   ),
                                   child: Row(
                                     children: [
-                                      Icon(Icons.error_outline, color: Colors.red[700], size: 20),
+                                      Icon(Icons.error_outline, color: Colors.red.shade700, size: 20),
                                       const SizedBox(width: 10),
                                       Expanded(
                                         child: Text(
                                           _errorMessage!,
                                           style: GoogleFonts.merienda(
                                             fontSize: 12,
-                                            color: Colors.red[700],
+                                            color: Colors.red.shade700,
                                           ),
                                         ),
                                       ),

frontend/lib/services/auth_service.dart

@@ -43,7 +43,8 @@ class AuthService {
       }
     } catch (e) {
       if (e is Exception) rethrow;
-      throw Exception('Erreur réseau: impossible de se connecter au serveur');
+      if (e is Error) throw Exception('Erreur interne: ${e.toString()}');
+      throw Exception('Erreur réseau: impossible de se connecter au serveur ($e)');
     }
   }
 
@@ -56,14 +57,22 @@ class AuthService {
       );
 
       if (response.statusCode == 200) {
-        final data = jsonDecode(response.body);
+        final raw = jsonDecode(response.body);
+        if (raw is! Map<String, dynamic>) {
+          throw Exception('Profil invalide: réponse serveur inattendue');
+        }
+        // Accepter réponse directe ou wrapper { data: {...} }
+        final data = raw.containsKey('data') && raw['data'] is Map<String, dynamic>
+            ? raw['data'] as Map<String, dynamic>
+            : raw;
         return AppUser.fromJson(data);
       } else {
         throw Exception('Erreur lors de la récupération du profil');
       }
     } catch (e) {
       if (e is Exception) rethrow;
-      throw Exception('Erreur réseau: impossible de récupérer le profil');
+      if (e is Error) throw Exception('Erreur interne: ${e.toString()}');
+      throw Exception('Erreur réseau: impossible de récupérer le profil ($e)');
     }
   }
 
@@ -98,7 +107,8 @@ class AuthService {
       await _saveCurrentUser(user);
     } catch (e) {
       if (e is Exception) rethrow;
-      throw Exception('Erreur réseau: impossible de changer le mot de passe');
+      if (e is Error) throw Exception('Erreur interne: ${e.toString()}');
+      throw Exception('Erreur réseau: impossible de changer le mot de passe ($e)');
     }
   }