feat(loans): confirm declared material state changes

eme-frontend/lib/services/emprunt_service.dart

@@ -17,18 +17,22 @@ class EmpruntService {
       "materielId": materielId,
       "posteEmpruntId": posteEmpruntId,
       "modeIdentification": "MAIL_ENSUP",
-      if (commentaireDepart.trim().isNotEmpty) "commentaireDepart": commentaireDepart.trim(),
+      if (commentaireDepart.trim().isNotEmpty)
+        "commentaireDepart": commentaireDepart.trim(),
       "elements": elements,
     });
 
-    final data = (reponse as Map<String, dynamic>)["data"] as Map<String, dynamic>;
+    final data =
+        (reponse as Map<String, dynamic>)["data"] as Map<String, dynamic>;
     return EmpruntResponse.fromJson(data);
   }
 
   static Future<List<EmpruntItem>> getMesEmprunts() async {
     final reponse = await ApiClient.get("/mes-emprunts");
     final data = (reponse as Map<String, dynamic>)["data"] as List<dynamic>;
-    return data.map((json) => EmpruntItem.fromJson(json as Map<String, dynamic>)).toList();
+    return data
+        .map((json) => EmpruntItem.fromJson(json as Map<String, dynamic>))
+        .toList();
   }
 
   static Future<EmpruntResponse> restituerEmprunt({
@@ -38,11 +42,31 @@ class EmpruntService {
   }) async {
     final reponse = await ApiClient.post("/emprunts/$empruntId/restitution", {
       "modeIdentification": "MAIL_ENSUP",
-      if (commentaireRetour.trim().isNotEmpty) "commentaireRetour": commentaireRetour.trim(),
+      if (commentaireRetour.trim().isNotEmpty)
+        "commentaireRetour": commentaireRetour.trim(),
       "elements": elements,
     });
 
-    final data = (reponse as Map<String, dynamic>)["data"] as Map<String, dynamic>;
+    final data =
+        (reponse as Map<String, dynamic>)["data"] as Map<String, dynamic>;
     return EmpruntResponse.fromJson(data);
   }
+
+  static Future<bool> signalerTentativeRetour({
+    required int empruntId,
+    required String nomElement,
+    required String etatInitial,
+    required String etatDemande,
+  }) async {
+    final reponse = await ApiClient.post(
+      "/emprunts/$empruntId/alerte-changement-retour",
+      {
+        "nomElement": nomElement,
+        "etatInitial": etatInitial,
+        "etatDemande": etatDemande,
+      },
+    );
+    final data = Map<String, dynamic>.from(reponse["data"] as Map);
+    return data["alerteCreee"] as bool;
+  }
 }