fix persistence - tructure ok

notus/Biblioteque_de_Class/IManager.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Biblioteque_de_Class
+{
+    public interface IManager
+    {
+        public void SaveDatabaseData(Database database);
+
+        public Database LoadDatabaseData();
+
+        public void SaveUserData(User user);
+
+        public User LoadUserData();
+    }
+}

notus/Biblioteque_de_Class/Manager.cs

@@ -8,6 +8,31 @@ namespace Biblioteque_de_Class
 {
     public class Manager
     {
-        private PersistenceManager persistence { set; get; }
+        private IManager persistence;
+
+        public Manager(IManager pers) 
+        {
+            persistence = pers; 
+        }
+
+        public  void SaveDatabaseData(Database database)
+        {
+            persistence.SaveDatabaseData(database);
+        }
+
+        public  Database LoadDatabaseData()
+        {
+            return persistence.LoadDatabaseData();
+        }
+
+        public  void SaveUserData(User user)
+        {
+            persistence.SaveUserData(user);
+        }
+
+        public  User LoadUserData()
+        {
+            return persistence.LoadUserData();
+        }
     }
 }

notus/Notus_Persistence/PersistenceManager.cs

@@ -1,33 +0,0 @@
-using Biblioteque_de_Class;
-using System.Runtime.Serialization;
-using System.Runtime.Serialization.Json;
-using System.Xml;
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-
-namespace Notus_Persistance
-{
-    public static class PersistenceManager
-    {
-        public static void SaveDatabaseData(Database database)
-        {
-            ToJSON.SaveDatabaseData(database);
-        }
-
-        public static Database LoadDatabaseData()
-        {
-            return ToJSON.LoadDatabaseData();
-        }
-
-        public static void SaveUserData(User user)
-        {
-            ToJSON.SaveUserData(user);
-        }
-
-        public static User LoadUserData()
-        {
-            return ToJSON.LoadUserData();
-        }
-    }
-}