feat(inscription AM): câblage API step 4 + AuthService.registerAM avec nir_utils

Made-with: Cursor

frontend/lib/screens/auth/am_register_step4_screen.dart

@@ -7,6 +7,7 @@ import 'dart:math' as math;
 import '../../models/am_registration_data.dart';
 import '../../models/card_assets.dart';
 import '../../config/display_config.dart';
+import '../../services/auth_service.dart';
 import '../../widgets/hover_relief_widget.dart';
 import '../../widgets/image_button.dart';
 import '../../widgets/custom_navigation_button.dart';
@@ -22,6 +23,28 @@ class AmRegisterStep4Screen extends StatefulWidget {
 }
 
 class _AmRegisterStep4ScreenState extends State<AmRegisterStep4Screen> {
+  bool _isSubmitting = false;
+
+  Future<void> _submitAMRegistration(AmRegistrationData registrationData) async {
+    if (_isSubmitting) return;
+    setState(() => _isSubmitting = true);
+    try {
+      await AuthService.registerAM(registrationData);
+      if (!mounted) return;
+      _showConfirmationModal(context);
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(e is Exception ? e.toString().replaceFirst('Exception: ', '') : 'Erreur lors de l\'inscription'),
+          backgroundColor: Colors.red.shade700,
+        ),
+      );
+    } finally {
+      if (mounted) setState(() => _isSubmitting = false);
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final registrationData = Provider.of<AmRegistrationData>(context);
@@ -90,12 +113,9 @@ class _AmRegisterStep4ScreenState extends State<AmRegisterStep4Screen> {
                             Expanded(
                               child: HoverReliefWidget(
                                 child: CustomNavigationButton(
-                                  text: 'Soumettre',
+                                  text: _isSubmitting ? 'Envoi...' : 'Soumettre',
                                   style: NavigationButtonStyle.green,
-                                  onPressed: () {
-                                    print("Données AM finales: ${registrationData.firstName} ${registrationData.lastName}");
-                                    _showConfirmationModal(context);
-                                  },
+                                  onPressed: () => _submitAMRegistration(registrationData),
                                   width: double.infinity,
                                   height: 50,
                                   fontSize: 16,
@@ -106,17 +126,14 @@ class _AmRegisterStep4ScreenState extends State<AmRegisterStep4Screen> {
                         ),
                       )
                     else
-                      ImageButton(
+                        ImageButton(
                         bg: 'assets/images/bg_green.png',
-                        text: 'Soumettre ma demande',
+                        text: _isSubmitting ? 'Envoi...' : 'Soumettre ma demande',
                         textColor: const Color(0xFF2D6A4F),
                         width: 350,
                         height: 50,
                         fontSize: 18,
-                        onPressed: () {
-                          print("Données AM finales: ${registrationData.firstName} ${registrationData.lastName}");
-                          _showConfirmationModal(context);
-                        },
+                        onPressed: () => _submitAMRegistration(registrationData),
                       ),
                   ],
                 ),