Реализовал логику бекапов для проекта хранения в файлах

SecuritySystem/SecuritySystemFileImplement/Implements/BackUpInfoStorage.cs

@@ -0,0 +1,39 @@
+using SecuritySystemContracts.StoragesContracts;
+
+namespace SecuritySystemFileImplement.Implements
+{
+    public class BackUpInfoStorage : IBackUpInfoStorage
+    {
+        private readonly DataFileSingleton source;
+        public BackUpInfoStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<T>? GetList<T>() where T : class, new()
+        {
+            return (List<T>?)source
+                .GetType()
+                .GetProperties()
+                .FirstOrDefault(
+                    x =>
+                    x.PropertyType.IsGenericType &&
+                    x.PropertyType.GetGenericArguments()[0] == typeof(T))?
+                .GetValue(source);
+        }
+        public Type? GetTypeByModelInterface(string modelInterfaceName)
+        {
+            var assembly = typeof(BackUpInfoStorage).Assembly;
+            var types = assembly.GetTypes();
+            foreach (var type in types)
+            {
+                if (type.IsClass &&
+                type.GetInterface(modelInterfaceName) != null)
+                {
+                    return type;
+                }
+            }
+            return null;
+        }
+    }
+}

SecuritySystem/SecuritySystemFileImplement/Models/Client.cs

@@ -3,15 +3,21 @@ using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Models;
 using SecuritySystemFileImplement.Models;
 using System.Reflection;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class Client : IClientModel
     {
+        [DataMember]
         public int Id { get; private set; }
+        [DataMember]
         public string ClientFIO { get; private set; } = string.Empty;
+        [DataMember]
         public string Email { get; private set; } = string.Empty;
+        [DataMember]
         public string Password { get; private set; } = string.Empty;
         public static Client? Create(ClientBindingModel model)
         {

SecuritySystem/SecuritySystemFileImplement/Models/Component.cs

@@ -1,14 +1,19 @@
 using SecuritySystemContracts.BindingModels;
 using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Models;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class Component : IComponentModel
     {
+        [DataMember]
         public int Id { get; private set; }
+        [DataMember]
         public string ComponentName { get; private set; } = string.Empty;
+        [DataMember]
         public double Cost { get; set; }
         public static Component? Create(ComponentBindingModel model)
         {

SecuritySystem/SecuritySystemFileImplement/Models/Implementer.cs

@@ -1,16 +1,23 @@
 using SecuritySystemContracts.BindingModels;
 using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Models;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class Implementer : IImplementerModel
     {
+        [DataMember]
         public string ImplementerFIO { get; private set; } = string.Empty;
+        [DataMember]
         public string Password { get; private set; } = string.Empty;
+        [DataMember]
         public int WorkExperience { get; private set; }
+        [DataMember]
         public int Qualification { get; private set; }
+        [DataMember]
         public int Id { get; private set; }
         public static Implementer? Create(ImplementerBindingModel model)
         {

SecuritySystem/SecuritySystemFileImplement/Models/MessageInfo.cs

@@ -2,17 +2,25 @@
 using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Models;
 using System.Reflection;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class MessageInfo : IMessageInfoModel
     {
+        [DataMember]
         public string MessageId { get; set; } = string.Empty;
+        [DataMember]
         public int? ClientId { get; set; }
+        [DataMember]
         public string SenderName { get; set; } = string.Empty;
+        [DataMember]
         public DateTime DateDelivery { get; set; } = DateTime.Now;
+        [DataMember]
         public string Subject { get; set; } = string.Empty;
+        [DataMember]
         public string Body { get; set; } = string.Empty;
 
         public static MessageInfo? Create(MessageInfoBindingModel model)

SecuritySystem/SecuritySystemFileImplement/Models/Order.cs

@@ -2,20 +2,31 @@
 using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Enums;
 using SecuritySystemDataModels.Models;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class Order : IOrderModel
     {
+        [DataMember]
         public int Id { get; private set; }
+        [DataMember]
         public int SecureId { get; private set; }
+        [DataMember]
         public int ClientId { get; private set; }
+        [DataMember]
         public int? ImplementerId { get; private set; }
+        [DataMember]
         public int Count { get; private set; }
+        [DataMember]
         public double Sum { get; private set; }
+        [DataMember]
         public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        [DataMember]
         public DateTime DateCreate { get; private set; } = DateTime.Now;
+        [DataMember]
         public DateTime? DateImplement { get; private set; }
 
         public static Order? Create(OrderBindingModel? model)

SecuritySystem/SecuritySystemFileImplement/Models/Secure.cs

@@ -1,17 +1,23 @@
 using SecuritySystemContracts.BindingModels;
 using SecuritySystemContracts.ViewModels;
 using SecuritySystemDataModels.Models;
+using System.Runtime.Serialization;
 using System.Xml.Linq;
 
 namespace SecuritySystemFileImplement.Models
 {
+    [DataContract]
     public class Secure : ISecureModel
     {
+        [DataMember]
         public int Id { get; private set; }
+        [DataMember]
         public string SecureName { get; private set; } = string.Empty;
+        [DataMember]
         public double Price { get; private set; }
         public Dictionary<int, int> Components { get; private set; } = new();
         private Dictionary<int, (IComponentModel, int)>? _secureComponents = null;
+        [DataMember]
         public Dictionary<int, (IComponentModel, int)> SecureComponents
         {
             get