feat: Intégration d'un assistant IA logisticien basé sur Gemini

- Ajout d'une Cloud Function `aiEquipmentProposal` utilisant le modèle Gemini avec function calling pour suggérer du matériel et des containers.
- Implémentation de plusieurs outils (tools) côté serveur pour permettre à l'IA d'interagir avec Firestore : `search_equipment`, `check_availability_batch`, `get_past_events`, `search_event_reference` et `search_containers`.
- Ajout de la dépendance `@google/generative-ai` dans le backend.
- Création d'un service Flutter `AiEquipmentAssistantService` pour communiquer avec la nouvelle Cloud Function.
- Ajout d'une interface de dialogue `AiEquipmentAssistantDialog` permettant aux utilisateurs de discuter avec l'IA pour affiner les propositions de matériel.
- Intégration de l'assistant IA dans la section de gestion du matériel des événements (`EventAssignedEquipmentSection`).
- Mise à jour de `DataService` avec de nouvelles méthodes de recherche et de vérification de disponibilité optimisées pour l'assistant.
- Activation du mode développement et configuration des identifiants de test dans `env.dart`.
- Optimisation des paramètres de la Cloud Function (timeout de 300s et 1GiB de RAM) pour supporter les traitements IA.

em2rp/lib/config/env.dart

@@ -1,9 +1,9 @@
 class Env {
-  static const bool isDevelopment = false;
+  static const bool isDevelopment = true;
 
   // Configuration de l'auto-login en développement
-  static const String devAdminEmail = '';
-  static const String devAdminPassword = '';
+  static const String devAdminEmail = 'paul.fournel@em2events.fr';
+  static const String devAdminPassword = 'Pastis51!';
 
   // URLs et endpoints
   static const String baseUrl = 'https://em2rp-951dc.firebaseapp.com';
@@ -14,3 +14,4 @@ class Env {
   // Autres configurations
   static const int apiTimeout = 30000; // 30 secondes
 }
+

em2rp/lib/services/ai_equipment_assistant_service.dart

@@ -0,0 +1,178 @@
+import 'dart:async';
+
+import 'package:em2rp/models/event_model.dart';
+import 'package:em2rp/services/api_service.dart';
+import 'package:em2rp/utils/debug_log.dart';
+
+/// Représente un tour de conversation dans le chat.
+class AiAssistantChatTurn {
+  final bool isUser;
+  final String text;
+
+  const AiAssistantChatTurn({required this.isUser, required this.text});
+}
+
+/// Un item proposé par l'IA dans la liste de matériel.
+class AiEquipmentProposalItem {
+  final String equipmentId;
+  final int quantity;
+  final String rationale;
+
+  const AiEquipmentProposalItem({
+    required this.equipmentId,
+    required this.quantity,
+    required this.rationale,
+  });
+}
+
+/// Proposition complète retournée par l'IA.
+class AiEquipmentProposal {
+  final String summary;
+  final List<AiEquipmentProposalItem> items;
+
+  /// Équipements individuels prêts à être injectés dans l'état local de l'événement.
+  final List<EventEquipment> asEventEquipment;
+
+  /// IDs des containers (flight cases) proposés par l'IA.
+  final List<String> containerIds;
+
+  const AiEquipmentProposal({
+    required this.summary,
+    required this.items,
+    required this.asEventEquipment,
+    required this.containerIds,
+  });
+}
+
+/// Réponse complète de l'assistant IA (message + proposition optionnelle).
+class AiEquipmentAssistantResponse {
+  final String assistantMessage;
+  final AiEquipmentProposal? proposal;
+
+  const AiEquipmentAssistantResponse({
+    required this.assistantMessage,
+    this.proposal,
+  });
+}
+
+/// Service assistant IA logisticien.
+/// Délègue tous les appels Gemini à la Cloud Function [aiEquipmentProposal].
+/// L'authentification Firebase (token Bearer) suffit — aucune clé API côté client.
+class AiEquipmentAssistantService {
+  final ApiService _apiService;
+
+  AiEquipmentAssistantService({ApiService? apiService})
+      : _apiService = apiService ?? FirebaseFunctionsApiService();
+
+  /// Envoie un message et retourne la réponse de l'assistant IA.
+  Future<AiEquipmentAssistantResponse> generateProposal({
+    required DateTime startDate,
+    required DateTime endDate,
+    required List<AiAssistantChatTurn> history,
+    required String userMessage,
+    String? eventTypeId,
+    String? excludeEventId,
+    List<EventEquipment> currentAssignedEquipment = const [],
+    List<EventEquipment> workingProposalEquipment = const [],
+  }) async {
+    final payload = <String, dynamic>{
+      'startDate': startDate.toIso8601String(),
+      'endDate': endDate.toIso8601String(),
+      'userMessage': userMessage.trim(),
+      'history': history
+          .where((turn) => turn.text.trim().isNotEmpty)
+          .map((turn) => {'isUser': turn.isUser, 'text': turn.text.trim()})
+          .toList(),
+      'currentEquipment': currentAssignedEquipment
+          .map((eq) => {'equipmentId': eq.equipmentId, 'quantity': eq.quantity})
+          .toList(),
+      'workingProposal': workingProposalEquipment
+          .map((eq) => {'equipmentId': eq.equipmentId, 'quantity': eq.quantity})
+          .toList(),
+    };
+
+    if (eventTypeId != null) payload['eventTypeId'] = eventTypeId;
+    if (excludeEventId != null) payload['excludeEventId'] = excludeEventId;
+
+    try {
+      DebugLog.info('[AiEquipmentAssistantService] Calling aiEquipmentProposal Cloud Function');
+
+      final result = await _apiService.call('aiEquipmentProposal', payload);
+      final assistantMessage = result['assistantMessage']?.toString().trim() ?? '';
+      final proposal = _parseProposal(result['proposal']);
+
+      DebugLog.info(
+        '[AiEquipmentAssistantService] Response received, items: ${proposal?.items.length ?? 0}',
+      );
+
+      return AiEquipmentAssistantResponse(
+        assistantMessage: assistantMessage.isNotEmpty
+            ? assistantMessage
+            : 'Je n\'ai pas pu générer de réponse.',
+        proposal: proposal,
+      );
+    } on ApiException catch (e) {
+      DebugLog.error('[AiEquipmentAssistantService] API error', e);
+      if (e.isUnauthorized) {
+        throw Exception('Vous n\'êtes pas authentifié. Reconnectez-vous et réessayez.');
+      }
+      throw Exception('Erreur du service IA (${e.statusCode}): ${e.message}');
+    } catch (e) {
+      DebugLog.error('[AiEquipmentAssistantService] Error', e);
+      rethrow;
+    }
+  }
+
+  AiEquipmentProposal? _parseProposal(dynamic rawProposal) {
+    if (rawProposal == null || rawProposal is! Map<String, dynamic>) return null;
+
+    final proposalItems = <AiEquipmentProposalItem>[];
+    final eventEquipmentList = <EventEquipment>[];
+    final containerIds = <String>[];
+
+    final rawItems = rawProposal['items'];
+    if (rawItems is List) {
+      for (final rawItem in rawItems) {
+        if (rawItem is! Map) continue;
+        final item = Map<String, dynamic>.from(rawItem);
+
+        final equipmentId = item['equipmentId']?.toString().trim() ?? '';
+        final quantity = int.tryParse(item['quantity']?.toString() ?? '1') ?? 1;
+
+        if (equipmentId.isEmpty || quantity <= 0) continue;
+
+        final rationale = item['rationale']?.toString().trim() ?? 'Proposition IA';
+
+        proposalItems.add(AiEquipmentProposalItem(
+          equipmentId: equipmentId,
+          quantity: quantity,
+          rationale: rationale,
+        ));
+        eventEquipmentList.add(EventEquipment(equipmentId: equipmentId, quantity: quantity));
+      }
+    }
+
+    final rawContainers = rawProposal['containers'];
+    if (rawContainers is List) {
+      for (final rawContainer in rawContainers) {
+        if (rawContainer is! Map) continue;
+        final container = Map<String, dynamic>.from(rawContainer);
+        final containerId = container['containerId']?.toString().trim() ?? '';
+        if (containerId.isNotEmpty) {
+          containerIds.add(containerId);
+        }
+      }
+    }
+
+    if (proposalItems.isEmpty && containerIds.isEmpty) return null;
+
+    return AiEquipmentProposal(
+      summary: rawProposal['summary']?.toString().trim().isNotEmpty == true
+          ? rawProposal['summary'].toString().trim()
+          : 'Proposition matériel générée automatiquement.',
+      items: proposalItems,
+      asEventEquipment: eventEquipmentList,
+      containerIds: containerIds,
+    );
+  }
+}

em2rp/lib/services/data_service.dart

@@ -27,7 +27,8 @@ class DataService {
       if (eventTypes == null) return [];
       return eventTypes.map((e) => e as Map<String, dynamic>).toList();
     } catch (e) {
-      throw Exception('Erreur lors de la récupération des types d\'événements: $e');
+      throw Exception(
+          'Erreur lors de la récupération des types d\'événements: $e');
     }
   }
 
@@ -55,15 +56,18 @@ class DataService {
     try {
       final data = <String, dynamic>{'eventId': eventId};
 
-      if (assignedEquipment != null) data['assignedEquipment'] = assignedEquipment;
-      if (preparationStatus != null) data['preparationStatus'] = preparationStatus;
+      if (assignedEquipment != null)
+        data['assignedEquipment'] = assignedEquipment;
+      if (preparationStatus != null)
+        data['preparationStatus'] = preparationStatus;
       if (loadingStatus != null) data['loadingStatus'] = loadingStatus;
       if (unloadingStatus != null) data['unloadingStatus'] = unloadingStatus;
       if (returnStatus != null) data['returnStatus'] = returnStatus;
 
       await _apiService.call('updateEventEquipment', data);
     } catch (e) {
-      throw Exception('Erreur lors de la mise à jour des équipements de l\'événement: $e');
+      throw Exception(
+          'Erreur lors de la mise à jour des équipements de l\'événement: $e');
     }
   }
 
@@ -77,11 +81,13 @@ class DataService {
       final data = <String, dynamic>{'equipmentId': equipmentId};
 
       if (status != null) data['status'] = status;
-      if (availableQuantity != null) data['availableQuantity'] = availableQuantity;
+      if (availableQuantity != null)
+        data['availableQuantity'] = availableQuantity;
 
       await _apiService.call('updateEquipmentStatusOnly', data);
     } catch (e) {
-      throw Exception('Erreur lors de la mise à jour du statut de l\'équipement: $e');
+      throw Exception(
+          'Erreur lors de la mise à jour du statut de l\'équipement: $e');
     }
   }
 
@@ -106,7 +112,8 @@ class DataService {
   }
 
   /// Crée un équipement
-  Future<void> createEquipment(String equipmentId, Map<String, dynamic> data) async {
+  Future<void> createEquipment(
+      String equipmentId, Map<String, dynamic> data) async {
     try {
       // S'assurer que l'ID est dans les données
       final equipmentData = Map<String, dynamic>.from(data);
@@ -119,7 +126,8 @@ class DataService {
   }
 
   /// Met à jour un équipement
-  Future<void> updateEquipment(String equipmentId, Map<String, dynamic> data) async {
+  Future<void> updateEquipment(
+      String equipmentId, Map<String, dynamic> data) async {
     try {
       await _apiService.call('updateEquipment', {
         'equipmentId': equipmentId,
@@ -140,9 +148,11 @@ class DataService {
   }
 
   /// Récupère les événements utilisant un type d'événement donné
-  Future<List<Map<String, dynamic>>> getEventsByEventType(String eventTypeId) async {
+  Future<List<Map<String, dynamic>>> getEventsByEventType(
+      String eventTypeId) async {
     try {
-      final result = await _apiService.call('getEventsByEventType', {'eventTypeId': eventTypeId});
+      final result = await _apiService
+          .call('getEventsByEventType', {'eventTypeId': eventTypeId});
       final events = result['events'] as List<dynamic>?;
       if (events == null) return [];
       return events.map((e) => e as Map<String, dynamic>).toList();
@@ -271,7 +281,8 @@ class DataService {
       final events = result['events'] as List<dynamic>? ?? [];
       final users = result['users'] as Map<String, dynamic>? ?? {};
 
-      print('[DataService] Events loaded for $year-$month: ${events.length} events');
+      print(
+          '[DataService] Events loaded for $year-$month: ${events.length} events');
 
       return {
         'events': events.map((e) => e as Map<String, dynamic>).toList(),
@@ -279,7 +290,8 @@ class DataService {
       };
     } catch (e) {
       print('[DataService] Error getting events by month: $e');
-      throw Exception('Erreur lors de la récupération des événements du mois: $e');
+      throw Exception(
+          'Erreur lors de la récupération des événements du mois: $e');
     }
   }
 
@@ -299,7 +311,8 @@ class DataService {
         throw Exception('Event not found');
       }
 
-      print('[DataService] Event loaded with ${equipments.length} equipments and ${containers.length} containers');
+      print(
+          '[DataService] Event loaded with ${equipments.length} equipments and ${containers.length} containers');
 
       return {
         'event': event,
@@ -308,7 +321,8 @@ class DataService {
       };
     } catch (e) {
       print('[DataService] Error getting event with details: $e');
-      throw Exception('Erreur lors de la récupération de l\'événement avec détails: $e');
+      throw Exception(
+          'Erreur lors de la récupération de l\'événement avec détails: $e');
     }
   }
 
@@ -332,11 +346,13 @@ class DataService {
   }
 
   /// Récupère plusieurs équipements par leurs IDs
-  Future<List<Map<String, dynamic>>> getEquipmentsByIds(List<String> equipmentIds) async {
+  Future<List<Map<String, dynamic>>> getEquipmentsByIds(
+      List<String> equipmentIds) async {
     try {
       if (equipmentIds.isEmpty) return [];
 
-      print('[DataService] Getting equipments by IDs: ${equipmentIds.length} items');
+      print(
+          '[DataService] Getting equipments by IDs: ${equipmentIds.length} items');
       final result = await _apiService.call('getEquipmentsByIds', {
         'equipmentIds': equipmentIds,
       });
@@ -366,11 +382,13 @@ class DataService {
   }
 
   /// Récupère plusieurs containers par leurs IDs
-  Future<List<Map<String, dynamic>>> getContainersByIds(List<String> containerIds) async {
+  Future<List<Map<String, dynamic>>> getContainersByIds(
+      List<String> containerIds) async {
     try {
       if (containerIds.isEmpty) return [];
 
-      print('[DataService] Getting containers by IDs: ${containerIds.length} items');
+      print(
+          '[DataService] Getting containers by IDs: ${containerIds.length} items');
       final result = await _apiService.call('getContainersByIds', {
         'containerIds': containerIds,
       });
@@ -415,22 +433,25 @@ class DataService {
         params['searchQuery'] = searchQuery;
       }
 
-      final result = await (_apiService as FirebaseFunctionsApiService).callPaginated(
+      final result =
+          await (_apiService as FirebaseFunctionsApiService).callPaginated(
         'getEquipmentsPaginated',
         params,
       );
 
       return {
         'equipments': (result['equipments'] as List<dynamic>?)
-            ?.map((e) => e as Map<String, dynamic>)
-            .toList() ?? [],
+                ?.map((e) => e as Map<String, dynamic>)
+                .toList() ??
+            [],
         'hasMore': result['hasMore'] as bool? ?? false,
         'lastVisible': result['lastVisible'] as String?,
         'total': result['total'] as int? ?? 0,
       };
     } catch (e) {
       DebugLog.error('[DataService] Error in getEquipmentsPaginated', e);
-      throw Exception('Erreur lors de la récupération paginée des équipements: $e');
+      throw Exception(
+          'Erreur lors de la récupération paginée des équipements: $e');
     }
   }
 
@@ -460,22 +481,25 @@ class DataService {
         params['searchQuery'] = searchQuery;
       }
 
-      final result = await (_apiService as FirebaseFunctionsApiService).callPaginated(
+      final result =
+          await (_apiService as FirebaseFunctionsApiService).callPaginated(
         'getContainersPaginated',
         params,
       );
 
       return {
         'containers': (result['containers'] as List<dynamic>?)
-            ?.map((e) => e as Map<String, dynamic>)
-            .toList() ?? [],
+                ?.map((e) => e as Map<String, dynamic>)
+                .toList() ??
+            [],
         'hasMore': result['hasMore'] as bool? ?? false,
         'lastVisible': result['lastVisible'] as String?,
         'total': result['total'] as int? ?? 0,
       };
     } catch (e) {
       DebugLog.error('[DataService] Error in getContainersPaginated', e);
-      throw Exception('Erreur lors de la récupération paginée des containers: $e');
+      throw Exception(
+          'Erreur lors de la récupération paginée des containers: $e');
     }
   }
 
@@ -499,6 +523,156 @@ class DataService {
     }
   }
 
+  /// Recherche des équipements pour l'assistant IA avec fallback paginé.
+  Future<List<Map<String, dynamic>>> searchEquipmentsForAssistant({
+    required String query,
+    int limit = 12,
+  }) async {
+    final normalizedQuery = query.trim();
+    if (normalizedQuery.isEmpty) {
+      return [];
+    }
+
+    try {
+      final quickResults = await quickSearch(
+        normalizedQuery,
+        limit: limit,
+        includeEquipments: true,
+        includeContainers: false,
+      );
+
+      final equipmentResults = quickResults
+          .where((item) =>
+              (item['type']?.toString().toLowerCase() ?? '') == 'equipment')
+          .map(_normalizeAssistantEquipment)
+          .toList();
+
+      if (equipmentResults.isNotEmpty) {
+        return equipmentResults;
+      }
+
+      final paginated = await getEquipmentsPaginated(
+        limit: limit,
+        searchQuery: normalizedQuery,
+        sortBy: 'id',
+        sortOrder: 'asc',
+      );
+
+      final equipments =
+          paginated['equipments'] as List<Map<String, dynamic>>? ?? [];
+      return equipments.map(_normalizeAssistantEquipment).toList();
+    } catch (e) {
+      DebugLog.error('[DataService] Error in searchEquipmentsForAssistant', e);
+      throw Exception('Erreur lors de la recherche de matériel: $e');
+    }
+  }
+
+  /// Vérifie la disponibilité d'un équipement dans un format normalisé pour l'IA.
+  Future<Map<String, dynamic>> checkEquipmentAvailabilityForAssistant({
+    required String equipmentId,
+    required DateTime startDate,
+    required DateTime endDate,
+    String? excludeEventId,
+  }) async {
+    try {
+      final result = await checkEquipmentAvailability(
+        equipmentId: equipmentId,
+        startDate: startDate,
+        endDate: endDate,
+        excludeEventId: excludeEventId,
+      );
+
+      final available = result['available'] as bool? ?? true;
+      final conflicts = (result['conflicts'] as List<dynamic>? ?? const [])
+          .whereType<Map<String, dynamic>>()
+          .map((conflict) {
+        final eventData =
+            conflict['eventData'] as Map<String, dynamic>? ?? const {};
+        final eventName =
+            (eventData['Name'] ?? conflict['eventName'] ?? '').toString();
+        return {
+          'eventId': conflict['eventId']?.toString() ?? '',
+          'eventName': eventName,
+          'overlapDays': conflict['overlapDays'] as int? ?? 0,
+        };
+      }).toList();
+
+      return {
+        'equipmentId': equipmentId,
+        'available': available,
+        'conflictCount': conflicts.length,
+        'conflicts': conflicts,
+      };
+    } catch (e) {
+      DebugLog.error(
+          '[DataService] Error in checkEquipmentAvailabilityForAssistant', e);
+      throw Exception('Erreur lors de la vérification de disponibilité: $e');
+    }
+  }
+
+  /// Retourne des événements passés, idéalement filtrés par type d'événement.
+  Future<List<Map<String, dynamic>>> getPastEventsForAssistant({
+    String? eventTypeId,
+    int limit = 10,
+  }) async {
+    try {
+      final now = DateTime.now();
+      final events = eventTypeId != null && eventTypeId.isNotEmpty
+          ? await getEventsByEventType(eventTypeId)
+          : (await getEvents())['events'] as List<Map<String, dynamic>>? ?? [];
+
+      final pastEvents = events.where((event) {
+        final endDate = _parseEventDate(event['EndDateTime']);
+        return endDate != null && endDate.isBefore(now);
+      }).toList();
+
+      pastEvents.sort((a, b) {
+        final aDate = _parseEventDate(a['StartDateTime']) ??
+            DateTime.fromMillisecondsSinceEpoch(0);
+        final bDate = _parseEventDate(b['StartDateTime']) ??
+            DateTime.fromMillisecondsSinceEpoch(0);
+        return bDate.compareTo(aDate);
+      });
+
+      return pastEvents.take(limit).map((event) {
+        final assignedEquipment =
+            event['assignedEquipment'] as List<dynamic>? ?? const [];
+        return {
+          'id': event['id']?.toString() ?? '',
+          'name': (event['Name'] ?? '').toString(),
+          'startDate': event['StartDateTime']?.toString() ?? '',
+          'endDate': event['EndDateTime']?.toString() ?? '',
+          'assignedEquipment': assignedEquipment,
+          'assignedEquipmentCount': assignedEquipment.length,
+        };
+      }).toList();
+    } catch (e) {
+      DebugLog.error('[DataService] Error in getPastEventsForAssistant', e);
+      throw Exception(
+          'Erreur lors de la récupération des événements passés: $e');
+    }
+  }
+
+  Map<String, dynamic> _normalizeAssistantEquipment(Map<String, dynamic> item) {
+    return {
+      'id': (item['id'] ?? '').toString(),
+      'name': (item['name'] ?? item['id'] ?? '').toString(),
+      'category': (item['category'] ?? '').toString(),
+      'status': (item['status'] ?? '').toString(),
+      'brand': item['brand']?.toString(),
+      'model': item['model']?.toString(),
+      'availableQuantity': item['availableQuantity'],
+      'totalQuantity': item['totalQuantity'],
+    };
+  }
+
+  DateTime? _parseEventDate(dynamic rawValue) {
+    if (rawValue is String) {
+      return DateTime.tryParse(rawValue);
+    }
+    return null;
+  }
+
   // ============================================================================
   // USER - Current User
   // ============================================================================
@@ -512,7 +686,8 @@ class DataService {
       return result['user'] as Map<String, dynamic>;
     } catch (e) {
       print('[DataService] Error getting current user: $e');
-      throw Exception('Erreur lors de la récupération de l\'utilisateur actuel: $e');
+      throw Exception(
+          'Erreur lors de la récupération de l\'utilisateur actuel: $e');
     }
   }
 
@@ -593,7 +768,8 @@ class DataService {
       });
       return result;
     } catch (e) {
-      throw Exception('Erreur lors de la récupération des équipements en conflit: $e');
+      throw Exception(
+          'Erreur lors de la récupération des équipements en conflit: $e');
     }
   }
 
@@ -602,7 +778,8 @@ class DataService {
   // ============================================================================
 
   /// Récupère toutes les maintenances
-  Future<List<Map<String, dynamic>>> getMaintenances({String? equipmentId}) async {
+  Future<List<Map<String, dynamic>>> getMaintenances(
+      {String? equipmentId}) async {
     try {
       final data = <String, dynamic>{};
       if (equipmentId != null) data['equipmentId'] = equipmentId;
@@ -619,14 +796,16 @@ class DataService {
   /// Supprime une maintenance
   Future<void> deleteMaintenance(String maintenanceId) async {
     try {
-      await _apiService.call('deleteMaintenance', {'maintenanceId': maintenanceId});
+      await _apiService
+          .call('deleteMaintenance', {'maintenanceId': maintenanceId});
     } catch (e) {
       throw Exception('Erreur lors de la suppression de la maintenance: $e');
     }
   }
 
   /// Récupère les containers contenant un équipement
-  Future<List<Map<String, dynamic>>> getContainersByEquipment(String equipmentId) async {
+  Future<List<Map<String, dynamic>>> getContainersByEquipment(
+      String equipmentId) async {
     try {
       final result = await _apiService.call('getContainersByEquipment', {
         'equipmentId': equipmentId,

em2rp/lib/views/event_add_page.dart

@@ -77,7 +77,8 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
       return;
     }
 
-    final success = await _controller.submitForm(context, existingEvent: widget.event);
+    final success =
+        await _controller.submitForm(context, existingEvent: widget.event);
     if (success && mounted) {
       Navigator.of(context).pop();
     }
@@ -158,21 +159,25 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
         },
         child: Scaffold(
           appBar: AppBar(
-            title: Text(isEditMode ? 'Modifier un événement' : 'Créer un événement'),
+            title: Text(
+                isEditMode ? 'Modifier un événement' : 'Créer un événement'),
           ),
           body: Center(
             child: SingleChildScrollView(
               child: (isMobile
                   ? Padding(
-                      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+                      padding: const EdgeInsets.symmetric(
+                          horizontal: 16, vertical: 12),
                       child: _buildFormContent(isMobile),
                     )
                   : Card(
                       elevation: 6,
                       margin: const EdgeInsets.all(24),
-                      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(18)),
+                      shape: RoundedRectangleBorder(
+                          borderRadius: BorderRadius.circular(18)),
                       child: Padding(
-                        padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 32),
+                        padding: const EdgeInsets.symmetric(
+                            horizontal: 32, vertical: 32),
                         child: _buildFormContent(isMobile),
                       ),
                     )),
@@ -186,15 +191,6 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
   Widget _buildFormContent(bool isMobile) {
     return Consumer<EventFormController>(
       builder: (context, controller, child) {
-        // Trouver le nom du type d'événement pour le passer au sélecteur d'options
-        final selectedEventTypeIndex = controller.selectedEventTypeId != null
-            ? controller.eventTypes.indexWhere((et) => et.id == controller.selectedEventTypeId)
-            : -1;
-        final selectedEventType = selectedEventTypeIndex != -1
-            ? controller.eventTypes[selectedEventTypeIndex]
-            : null;
-        final selectedEventTypeName = selectedEventType?.name;
-
         return Form(
           key: _formKey,
           child: Column(
@@ -209,18 +205,22 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
                 selectedEventTypeId: controller.selectedEventTypeId,
                 startDateTime: controller.startDateTime,
                 endDateTime: controller.endDateTime,
-                onEventTypeChanged: (typeId) => controller.onEventTypeChanged(typeId, context),
+                onEventTypeChanged: (typeId) =>
+                    controller.onEventTypeChanged(typeId, context),
                 onStartDateTimeChanged: controller.setStartDateTime,
                 onEndDateTimeChanged: controller.setEndDateTime,
-                onAnyFieldChanged: () {}, // Géré automatiquement par le contrôleur
+                onAnyFieldChanged:
+                    () {}, // Géré automatiquement par le contrôleur
               ),
               const SizedBox(height: 16),
               OptionSelectorWidget(
-                eventType: controller.selectedEventTypeId, // Utilise l'ID au lieu du nom
+                eventType: controller
+                    .selectedEventTypeId, // Utilise l'ID au lieu du nom
                 selectedOptions: controller.selectedOptions,
                 onChanged: controller.setSelectedOptions,
                 onRemove: (optionId) {
-                  final newOptions = List<Map<String, dynamic>>.from(controller.selectedOptions);
+                  final newOptions = List<Map<String, dynamic>>.from(
+                      controller.selectedOptions);
                   newOptions.removeWhere((o) => o['id'] == optionId);
                   controller.setSelectedOptions(newOptions);
                 },
@@ -236,6 +236,7 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
                 endDate: controller.endDateTime,
                 onChanged: controller.setAssignedEquipment,
                 eventId: widget.event?.id,
+                eventTypeId: controller.selectedEventTypeId,
               ),
               const SizedBox(height: 16),
               EventDetailsSection(
@@ -247,7 +248,8 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
                 contactEmailController: controller.contactEmailController,
                 contactPhoneController: controller.contactPhoneController,
                 isMobile: isMobile,
-                onAnyFieldChanged: () {}, // Géré automatiquement par le contrôleur
+                onAnyFieldChanged:
+                    () {}, // Géré automatiquement par le contrôleur
               ),
               EventStaffAndDocumentsSection(
                 allUsers: controller.allUsers,
@@ -290,9 +292,10 @@ class _EventAddEditPageState extends State<EventAddEditPage> {
                   }
                 },
                 onSubmit: _submit,
-                onSetConfirmed: !isEditMode ? () {
-                } : null,
-                onDelete: isEditMode ? _deleteEvent : null, // Ajout du callback de suppression
+                onSetConfirmed: !isEditMode ? () {} : null,
+                onDelete: isEditMode
+                    ? _deleteEvent
+                    : null, // Ajout du callback de suppression
               ),
             ],
           ),

em2rp/lib/views/widgets/event_form/ai_equipment_assistant_dialog.dart

@@ -0,0 +1,384 @@
+import 'package:em2rp/models/event_model.dart';
+import 'package:em2rp/services/ai_equipment_assistant_service.dart';
+import 'package:flutter/material.dart';
+
+/// Résultat retourné par le dialog après confirmation de la proposition IA.
+class AiProposalResult {
+  final List<EventEquipment> equipment;
+  final List<String> containerIds;
+
+  const AiProposalResult({
+    required this.equipment,
+    required this.containerIds,
+  });
+}
+
+class AiEquipmentAssistantDialog extends StatefulWidget {
+  final DateTime startDate;
+  final DateTime endDate;
+  final String? eventTypeId;
+  final String? excludeEventId;
+  final List<EventEquipment> currentAssignedEquipment;
+
+  const AiEquipmentAssistantDialog({
+    super.key,
+    required this.startDate,
+    required this.endDate,
+    required this.currentAssignedEquipment,
+    this.eventTypeId,
+    this.excludeEventId,
+  });
+
+  @override
+  State<AiEquipmentAssistantDialog> createState() =>
+      _AiEquipmentAssistantDialogState();
+}
+
+class _AiEquipmentAssistantDialogState
+    extends State<AiEquipmentAssistantDialog> {
+  final TextEditingController _messageController = TextEditingController();
+  final ScrollController _scrollController = ScrollController();
+  final ScrollController _proposalScrollController = ScrollController();
+  final List<_AssistantChatMessage> _messages = [];
+
+  late final AiEquipmentAssistantService _assistantService;
+
+  bool _isLoading = false;
+  String? _errorMessage;
+  AiEquipmentProposal? _latestProposal;
+  late List<EventEquipment> _workingEquipment;
+
+  @override
+  void initState() {
+    super.initState();
+    _assistantService = AiEquipmentAssistantService();
+    _workingEquipment = List<EventEquipment>.from(widget.currentAssignedEquipment);
+  }
+
+  @override
+  void dispose() {
+    _messageController.dispose();
+    _scrollController.dispose();
+    _proposalScrollController.dispose();
+    super.dispose();
+  }
+
+  bool get _isChatEmpty => _messages.isEmpty;
+
+  String get _actionButtonLabel {
+    return _isChatEmpty ? 'Generer la liste automatiquement' : 'Envoyer';
+  }
+
+  Future<void> _sendMessage() async {
+    if (_isLoading) {
+      return;
+    }
+
+    final rawInput = _messageController.text.trim();
+    final isAutoMode = _isChatEmpty;
+    final userMessage = isAutoMode
+        ? (rawInput.isNotEmpty
+            ? rawInput
+            : 'Genere automatiquement une proposition de materiel pour cet evenement.')
+        : rawInput;
+
+    if (userMessage.isEmpty) {
+      return;
+    }
+
+    _messageController.clear();
+    setState(() {
+      _errorMessage = null;
+      _messages.add(_AssistantChatMessage.user(userMessage));
+      _isLoading = true;
+    });
+
+    _scrollToBottom();
+
+    try {
+      final response = await _assistantService
+          .generateProposal(
+            startDate: widget.startDate,
+            endDate: widget.endDate,
+            eventTypeId: widget.eventTypeId,
+            excludeEventId: widget.excludeEventId,
+            currentAssignedEquipment: widget.currentAssignedEquipment,
+            workingProposalEquipment: _workingEquipment,
+            userMessage: userMessage,
+            history: _messages
+                .map((message) => AiAssistantChatTurn(
+                    isUser: message.isUser, text: message.text))
+                .toList(),
+          );
+
+      if (!mounted) {
+        return;
+      }
+
+      setState(() {
+        _messages
+            .add(_AssistantChatMessage.assistant(response.assistantMessage));
+        _latestProposal = response.proposal;
+        if (response.proposal != null) {
+          _workingEquipment = List<EventEquipment>.from(
+            response.proposal!.asEventEquipment,
+          );
+        }
+        _isLoading = false;
+      });
+      _scrollToBottom();
+    } on FormatException catch (error) {
+      if (!mounted) {
+        return;
+      }
+      setState(() {
+        _isLoading = false;
+        _errorMessage = 'Reponse IA invalide: ${error.message}';
+      });
+    } catch (error) {
+      if (!mounted) {
+        return;
+      }
+      setState(() {
+        _isLoading = false;
+        _errorMessage = 'Erreur IA: $error';
+      });
+    }
+  }
+
+  void _scrollToBottom() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!_scrollController.hasClients) {
+        return;
+      }
+      _scrollController.animateTo(
+        _scrollController.position.maxScrollExtent,
+        duration: const Duration(milliseconds: 250),
+        curve: Curves.easeOut,
+      );
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Dialog(
+      insetPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 24),
+      child: SizedBox(
+        width: 760,
+        height: 640,
+        child: Column(
+          children: [
+            AppBar(
+              automaticallyImplyLeading: false,
+              title: const Text('Assistant IA Logisticien'),
+              actions: [
+                IconButton(
+                  icon: const Icon(Icons.close),
+                  onPressed:
+                      _isLoading ? null : () => Navigator.of(context).pop(),
+                ),
+              ],
+            ),
+            Expanded(
+              child: Column(
+                children: [
+                  Expanded(
+                    child: Container(
+                      color: Colors.grey.shade50,
+                      child: ListView.builder(
+                        controller: _scrollController,
+                        padding: const EdgeInsets.all(16),
+                        itemCount: _messages.length,
+                        itemBuilder: (context, index) {
+                          final message = _messages[index];
+                          return _buildMessageBubble(message);
+                        },
+                      ),
+                    ),
+                  ),
+                  if (_isLoading)
+                    const Padding(
+                      padding:
+                          EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                      child: Row(
+                        children: [
+                          SizedBox(
+                            width: 18,
+                            height: 18,
+                            child: CircularProgressIndicator(strokeWidth: 2),
+                          ),
+                          SizedBox(width: 12),
+                          Text(
+                              'Generation en cours... verification du materiel et disponibilites.'),
+                        ],
+                      ),
+                    ),
+                  if (_errorMessage != null)
+                    Container(
+                      width: double.infinity,
+                      margin: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+                      padding: const EdgeInsets.all(12),
+                      decoration: BoxDecoration(
+                        color: Colors.red.shade50,
+                        borderRadius: BorderRadius.circular(10),
+                        border: Border.all(color: Colors.red.shade200),
+                      ),
+                      child: Text(
+                        _errorMessage!,
+                        style: TextStyle(color: Colors.red.shade800),
+                      ),
+                    ),
+                  if (_latestProposal != null)
+                    _buildProposalSummary(_latestProposal!),
+                  Padding(
+                    padding: const EdgeInsets.all(16),
+                    child: Row(
+                      children: [
+                        Expanded(
+                          child: TextField(
+                            controller: _messageController,
+                            enabled: !_isLoading,
+                            minLines: 1,
+                            maxLines: 3,
+                            decoration: const InputDecoration(
+                              hintText:
+                                  'Precisez votre besoin (style, jauge, contraintes...)',
+                              border: OutlineInputBorder(),
+                            ),
+                            onSubmitted: (_) => _sendMessage(),
+                          ),
+                        ),
+                        const SizedBox(width: 12),
+                        ElevatedButton(
+                          onPressed: _isLoading ? null : _sendMessage,
+                          child: Text(_actionButtonLabel),
+                        ),
+                      ],
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildMessageBubble(_AssistantChatMessage message) {
+    final bubbleColor = message.isUser ? Colors.blue.shade600 : Colors.white;
+    final textColor = message.isUser ? Colors.white : Colors.black87;
+
+    return Align(
+      alignment: message.isUser ? Alignment.centerRight : Alignment.centerLeft,
+      child: Container(
+        margin: const EdgeInsets.only(bottom: 10),
+        constraints: const BoxConstraints(maxWidth: 560),
+        padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+        decoration: BoxDecoration(
+          color: bubbleColor,
+          borderRadius: BorderRadius.circular(12),
+          border:
+              message.isUser ? null : Border.all(color: Colors.grey.shade300),
+        ),
+        child: Text(
+          message.text,
+          style: TextStyle(color: textColor),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildProposalSummary(AiEquipmentProposal proposal) {
+    return Container(
+      width: double.infinity,
+      margin: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+      padding: const EdgeInsets.all(12),
+      constraints: const BoxConstraints(maxHeight: 240),
+      decoration: BoxDecoration(
+        color: Colors.green.shade50,
+        borderRadius: BorderRadius.circular(10),
+        border: Border.all(color: Colors.green.shade200),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          const Text(
+            'Recapitulatif propose',
+            style: TextStyle(fontWeight: FontWeight.bold),
+          ),
+          const SizedBox(height: 8),
+          Flexible(
+            child: Scrollbar(
+              controller: _proposalScrollController,
+              thumbVisibility: true,
+              child: SingleChildScrollView(
+                controller: _proposalScrollController,
+                padding: const EdgeInsets.only(right: 8),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Text(proposal.summary),
+                    if (proposal.items.isNotEmpty) ...[
+                      const SizedBox(height: 8),
+                      ...proposal.items.map((item) {
+                        return Padding(
+                          padding: const EdgeInsets.only(bottom: 4),
+                          child: Text(
+                            '- ${item.equipmentId} x${item.quantity} - ${item.rationale}',
+                          ),
+                        );
+                      }),
+                    ],
+                    if (proposal.containerIds.isNotEmpty) ...[
+                      const SizedBox(height: 8),
+                      const Text(
+                        'Boites proposees :',
+                        style: TextStyle(fontWeight: FontWeight.w600),
+                      ),
+                      ...proposal.containerIds.map((id) {
+                        return Padding(
+                          padding: const EdgeInsets.only(bottom: 4),
+                          child: Text('- $id'),
+                        );
+                      }),
+                    ],
+                  ],
+                ),
+              ),
+            ),
+          ),
+          const SizedBox(height: 10),
+          ElevatedButton.icon(
+            onPressed: _isLoading
+                ? null
+                : () => Navigator.of(context).pop(
+                      AiProposalResult(
+                        equipment: proposal.asEventEquipment,
+                        containerIds: proposal.containerIds,
+                      ),
+                    ),
+            icon: const Icon(Icons.add_task),
+            label: const Text('Confirmer et Ajouter'),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _AssistantChatMessage {
+  final bool isUser;
+  final String text;
+
+  const _AssistantChatMessage._({required this.isUser, required this.text});
+
+  factory _AssistantChatMessage.user(String text) {
+    return _AssistantChatMessage._(isUser: true, text: text);
+  }
+
+  factory _AssistantChatMessage.assistant(String text) {
+    return _AssistantChatMessage._(isUser: false, text: text);
+  }
+}

em2rp/lib/views/widgets/event_form/event_assigned_equipment_section.dart

@@ -8,6 +8,7 @@ import 'package:em2rp/providers/equipment_provider.dart';
 import 'package:em2rp/providers/container_provider.dart';
 import 'package:em2rp/utils/colors.dart';
 import 'package:em2rp/views/widgets/event/equipment_selection_dialog.dart';
+import 'package:em2rp/views/widgets/event_form/ai_equipment_assistant_dialog.dart';
 
 /// Section pour afficher et gérer le matériel assigné à un événement
 class EventAssignedEquipmentSection extends StatefulWidget {
@@ -17,6 +18,7 @@ class EventAssignedEquipmentSection extends StatefulWidget {
   final DateTime? endDate;
   final Function(List<EventEquipment>, List<String>) onChanged;
   final String? eventId; // Pour exclure l'événement actuel de la vérification
+  final String? eventTypeId;
 
   const EventAssignedEquipmentSection({
     super.key,
@@ -26,14 +28,18 @@ class EventAssignedEquipmentSection extends StatefulWidget {
     required this.endDate,
     required this.onChanged,
     this.eventId,
+    this.eventTypeId,
   });
 
   @override
-  State<EventAssignedEquipmentSection> createState() => _EventAssignedEquipmentSectionState();
+  State<EventAssignedEquipmentSection> createState() =>
+      _EventAssignedEquipmentSectionState();
 }
 
-class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSection> {
-  bool get _canAddMaterial => widget.startDate != null && widget.endDate != null;
+class _EventAssignedEquipmentSectionState
+    extends State<EventAssignedEquipmentSection> {
+  bool get _canAddMaterial =>
+      widget.startDate != null && widget.endDate != null;
   final Map<String, EquipmentModel> _equipmentCache = {};
   final Map<String, ContainerModel> _containerCache = {};
   bool _isLoading = true;
@@ -61,19 +67,24 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
       final equipmentProvider = context.read<EquipmentProvider>();
       final containerProvider = context.read<ContainerProvider>();
 
-      DebugLog.info('[EventAssignedEquipmentSection] Loading caches from assigned lists');
+      DebugLog.info(
+          '[EventAssignedEquipmentSection] Loading caches from assigned lists');
 
       // Toujours partir des données locales du formulaire pour éviter les décalages visuels.
-      final equipmentIds = widget.assignedEquipment.map((eq) => eq.equipmentId).toList();
-      final containers = await containerProvider.getContainersByIds(widget.assignedContainers);
+      final equipmentIds =
+          widget.assignedEquipment.map((eq) => eq.equipmentId).toList();
+      final containers =
+          await containerProvider.getContainersByIds(widget.assignedContainers);
 
       final childEquipmentIds = <String>[];
       for (final container in containers) {
         childEquipmentIds.addAll(container.equipmentIds);
       }
 
-      final allEquipmentIds = <String>{...equipmentIds, ...childEquipmentIds}.toList();
-      final equipment = await equipmentProvider.getEquipmentsByIds(allEquipmentIds);
+      final allEquipmentIds =
+          <String>{...equipmentIds, ...childEquipmentIds}.toList();
+      final equipment =
+          await equipmentProvider.getEquipmentsByIds(allEquipmentIds);
 
       _equipmentCache.clear();
       _containerCache.clear();
@@ -110,7 +121,9 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
         _containerCache[containerId] = container;
       }
     } catch (e) {
-      DebugLog.error('[EventAssignedEquipmentSection] Error loading equipment and containers', e);
+      DebugLog.error(
+          '[EventAssignedEquipmentSection] Error loading equipment and containers',
+          e);
     } finally {
       setState(() => _isLoading = false);
     }
@@ -138,7 +151,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
   }
 
   Future<void> _processSelection(Map<String, SelectedItem> selection) async {
-    DebugLog.info('[EventAssignedEquipmentSection] Processing selection of ${selection.length} items');
+    DebugLog.info(
+        '[EventAssignedEquipmentSection] Processing selection of ${selection.length} items');
 
     // Séparer équipements et conteneurs
     final newEquipment = <EventEquipment>[];
@@ -155,23 +169,27 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
       }
     }
 
-    DebugLog.info('[EventAssignedEquipmentSection] Found ${newEquipment.length} equipment(s) and ${newContainers.length} container(s)');
+    DebugLog.info(
+        '[EventAssignedEquipmentSection] Found ${newEquipment.length} equipment(s) and ${newContainers.length} container(s)');
 
     // 🔧 FIX: Pour chaque container sélectionné, ajouter aussi ses équipements enfants
     if (newContainers.isNotEmpty) {
       final containerProvider = context.read<ContainerProvider>();
-      final containers = await containerProvider.getContainersByIds(newContainers);
+      final containers =
+          await containerProvider.getContainersByIds(newContainers);
 
       for (var container in containers) {
         for (var childEquipmentId in container.equipmentIds) {
           // Vérifier si l'équipement enfant n'est pas déjà dans la liste
-          final existsInNew = newEquipment.any((eq) => eq.equipmentId == childEquipmentId);
+          final existsInNew =
+              newEquipment.any((eq) => eq.equipmentId == childEquipmentId);
           if (!existsInNew) {
             newEquipment.add(EventEquipment(
               equipmentId: childEquipmentId,
               quantity: 1,
             ));
-            DebugLog.info('[EventAssignedEquipmentSection] Adding child equipment $childEquipmentId from container ${container.id}');
+            DebugLog.info(
+                '[EventAssignedEquipmentSection] Adding child equipment $childEquipmentId from container ${container.id}');
           }
         }
       }
@@ -183,11 +201,12 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
     // Fusionner avec l'existant
     final updatedEquipment = [...widget.assignedEquipment];
     final updatedContainers = [...widget.assignedContainers];
-    
+
     // Pour chaque nouvel équipement
     for (var eq in newEquipment) {
-      final existingIndex = updatedEquipment.indexWhere((e) => e.equipmentId == eq.equipmentId);
-    
+      final existingIndex =
+          updatedEquipment.indexWhere((e) => e.equipmentId == eq.equipmentId);
+
       if (existingIndex != -1) {
         // L'équipement existe déjà : mettre à jour la quantité
         updatedEquipment[existingIndex] = EventEquipment(
@@ -204,17 +223,64 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
         updatedEquipment.add(eq);
       }
     }
-    
+
     for (var containerId in newContainers) {
       if (!updatedContainers.contains(containerId)) {
         updatedContainers.add(containerId);
       }
     }
-    
+
     // Notifier le changement
     widget.onChanged(updatedEquipment, updatedContainers);
   }
 
+  Future<void> _openAiAssistantDialog() async {
+    if (widget.startDate == null || widget.endDate == null) {
+      return;
+    }
+
+    final result = await showDialog<AiProposalResult>(
+      context: context,
+      builder: (context) => AiEquipmentAssistantDialog(
+        startDate: widget.startDate!,
+        endDate: widget.endDate!,
+        eventTypeId: widget.eventTypeId,
+        excludeEventId: widget.eventId,
+        currentAssignedEquipment: widget.assignedEquipment,
+      ),
+    );
+
+    if (result == null) {
+      return;
+    }
+
+    _applyAiProposal(result);
+  }
+
+  void _applyAiProposal(AiProposalResult result) {
+    final existingById = {
+      for (final equipment in widget.assignedEquipment)
+        equipment.equipmentId: equipment,
+    };
+
+    final updatedEquipment = result.equipment.map((proposed) {
+      final existing = existingById[proposed.equipmentId];
+      if (existing == null) {
+        return proposed;
+      }
+      return existing.copyWith(quantity: proposed.quantity);
+    }).toList();
+
+    final updatedContainers = [...widget.assignedContainers];
+    for (final containerId in result.containerIds) {
+      if (!updatedContainers.contains(containerId)) {
+        updatedContainers.add(containerId);
+      }
+    }
+
+    widget.onChanged(updatedEquipment, updatedContainers);
+  }
+
   void _removeEquipment(String equipmentId) {
     final updated = widget.assignedEquipment
         .where((eq) => eq.equipmentId != equipmentId)
@@ -231,9 +297,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
     final container = _containerCache[containerId];
 
     // Retirer le conteneur de la liste
-    final updatedContainers = widget.assignedContainers
-        .where((id) => id != containerId)
-        .toList();
+    final updatedContainers =
+        widget.assignedContainers.where((id) => id != containerId).toList();
 
     // 🔧 FIX: Ne supprimer les équipements enfants QUE s'ils ne sont pas dans un autre container
     final updatedEquipment = <EventEquipment>[];
@@ -252,8 +317,10 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
       // 1. Ne sont PAS dans le container supprimé OU
       // 2. Sont dans le container supprimé MAIS aussi dans un autre container
       for (var eq in widget.assignedEquipment) {
-        final isInRemovedContainer = container.equipmentIds.contains(eq.equipmentId);
-        final isInOtherContainer = equipmentIdsInOtherContainers.contains(eq.equipmentId);
+        final isInRemovedContainer =
+            container.equipmentIds.contains(eq.equipmentId);
+        final isInOtherContainer =
+            equipmentIdsInOtherContainers.contains(eq.equipmentId);
 
         if (!isInRemovedContainer || isInOtherContainer) {
           updatedEquipment.add(eq);
@@ -271,7 +338,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
       _containerCache.remove(containerId);
       // Nettoyer le cache uniquement pour les équipements effectivement supprimés
       if (container != null) {
-        final remainingEquipmentIds = updatedEquipment.map((eq) => eq.equipmentId).toSet();
+        final remainingEquipmentIds =
+            updatedEquipment.map((eq) => eq.equipmentId).toSet();
         for (var equipmentId in container.equipmentIds) {
           if (!remainingEquipmentIds.contains(equipmentId)) {
             _equipmentCache.remove(equipmentId);
@@ -301,7 +369,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
 
   @override
   Widget build(BuildContext context) {
-    final totalItems = widget.assignedEquipment.length + widget.assignedContainers.length;
+    final totalItems =
+        widget.assignedEquipment.length + widget.assignedContainers.length;
 
     return Card(
       elevation: 2,
@@ -350,15 +419,25 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
                     ],
                   ),
                 ),
+                ActionChip(
+                  onPressed: _canAddMaterial ? _openAiAssistantDialog : null,
+                  avatar: const Icon(Icons.auto_fix_high, size: 18),
+                  label: const Text('Assistant IA'),
+                ),
+                const SizedBox(width: 8),
                 ElevatedButton.icon(
                   onPressed: _canAddMaterial ? _openSelectionDialog : null,
-                  icon: Icon(Icons.add, color: _canAddMaterial ? Colors.white : Colors.grey),
+                  icon: Icon(Icons.add,
+                      color: _canAddMaterial ? Colors.white : Colors.grey),
                   label: Text(
                     'Ajouter',
-                    style: TextStyle(color: _canAddMaterial ? Colors.white : Colors.grey),
+                    style: TextStyle(
+                        color: _canAddMaterial ? Colors.white : Colors.grey),
                   ),
                   style: ElevatedButton.styleFrom(
-                    backgroundColor: _canAddMaterial ? AppColors.rouge : Colors.grey.shade300,
+                    backgroundColor: _canAddMaterial
+                        ? AppColors.rouge
+                        : Colors.grey.shade300,
                   ),
                 ),
               ],
@@ -512,7 +591,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
               }
 
               return Padding(
-                padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                padding:
+                    const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                 child: Column(
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
@@ -537,7 +617,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
                               color: Colors.grey.shade600,
                             ),
                             const SizedBox(width: 8),
-                            eq.category.getIcon(size: 16, color: eq.category.color),
+                            eq.category
+                                .getIcon(size: 16, color: eq.category.color),
                             const SizedBox(width: 8),
                             Expanded(
                               child: Text(
@@ -562,7 +643,8 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
     );
   }
 
-  Widget _buildEquipmentItem(EquipmentModel? equipment, EventEquipment eventEq) {
+  Widget _buildEquipmentItem(
+      EquipmentModel? equipment, EventEquipment eventEq) {
     if (equipment == null) {
       return Card(
         margin: const EdgeInsets.only(bottom: 8),
@@ -585,17 +667,15 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
     }
 
     final isConsumable = equipment.category == EquipmentCategory.consumable ||
-                        equipment.category == EquipmentCategory.cable;
+        equipment.category == EquipmentCategory.cable;
 
     return Card(
       margin: const EdgeInsets.only(bottom: 8),
       child: ListTile(
         leading: CircleAvatar(
           backgroundColor: equipment.category.color.withValues(alpha: 0.2),
-          child: equipment.category.getIconForAvatar(
-            size: 24,
-            color: equipment.category.color
-          ),
+          child: equipment.category
+              .getIconForAvatar(size: 24, color: equipment.category.color),
         ),
         title: Text(
           equipment.id,
@@ -634,4 +714,3 @@ class _EventAssignedEquipmentSectionState extends State<EventAssignedEquipmentSe
     );
   }
 }
-