14 changed files with 692 additions and 9 deletions
--- a/BlacksmithWorkshop/BlacksmithWorkshop.sln
+++ b/BlacksmithWorkshop/BlacksmithWorkshop.sln
@ -11,7 +11,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlacksmithWorkshopContracts
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlacksmithWorkshopBusinessLogic", "BlacksmithWorkshopBusinessLogic\BlacksmithWorkshopBusinessLogic.csproj", "{B3C97222-2894-4D74-B0D7-B3BEB347081D}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlacksmithWorkshopListImplement", "BlacksmithWorkshopListImplement\BlacksmithWorkshopListImplement.csproj", "{2942D468-0C3B-4B8D-A15F-184F5D7C969A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BlacksmithWorkshopListImplement", "BlacksmithWorkshopListImplement\BlacksmithWorkshopListImplement.csproj", "{2942D468-0C3B-4B8D-A15F-184F5D7C969A}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlacksmithWorkshopFileImplement", "BlacksmithWorkshopFileImplement\BlacksmithWorkshopFileImplement.csproj", "{58737D93-9A12-4D07-BF3F-86AC512CE626}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@ -39,6 +41,10 @@ Global
 		{2942D468-0C3B-4B8D-A15F-184F5D7C969A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2942D468-0C3B-4B8D-A15F-184F5D7C969A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2942D468-0C3B-4B8D-A15F-184F5D7C969A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{58737D93-9A12-4D07-BF3F-86AC512CE626}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{58737D93-9A12-4D07-BF3F-86AC512CE626}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{58737D93-9A12-4D07-BF3F-86AC512CE626}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{58737D93-9A12-4D07-BF3F-86AC512CE626}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
--- a/BlacksmithWorkshop/BlacksmithWorkshop/BlacksmithWorkshop.csproj
+++ b/BlacksmithWorkshop/BlacksmithWorkshop/BlacksmithWorkshop.csproj
@ -17,6 +17,7 @@
  <ItemGroup>
    <ProjectReference Include="..\BlacksmithWorkshopBusinessLogic\BlacksmithWorkshopBusinessLogic.csproj" />
    <ProjectReference Include="..\BlacksmithWorkshopContracts\BlacksmithWorkshopContracts.csproj" />
+    <ProjectReference Include="..\BlacksmithWorkshopFileImplement\BlacksmithWorkshopFileImplement.csproj" />
    <ProjectReference Include="..\BlacksmithWorkshopListImplement\BlacksmithWorkshopListImplement.csproj" />
  </ItemGroup>

--- a/BlacksmithWorkshop/BlacksmithWorkshop/FormMain.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshop/FormMain.cs
@ -94,7 +94,7 @@ namespace BlacksmithWorkshop
            {
                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
                _logger.LogInformation("Заказ №{id}. Меняется статус на 'В работе'", id);
-                
+
                try
                {
                    var operationResult = _orderLogic.TakeOrderInWork(new OrderBindingModel
@ -182,4 +182,4 @@ namespace BlacksmithWorkshop
            LoadData();
        }
    }
-}
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshop/Program.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshop/Program.cs
@ -1,19 +1,19 @@
 using BlacksmithWorkshopBusinessLogic.BusinessLogic;
 using BlacksmithWorkshopContracts.BusinessLogicsContracts;
 using BlacksmithWorkshopContracts.StoragesContracts;
-using BlacksmithWorkshopListImplement.Implements;
+using BlacksmithWorkshopFileImplement.Implements;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;

-using System.Drawing;
-
 namespace BlacksmithWorkshop
 {
    internal static class Program
    {
        private static ServiceProvider? _serviceProvider;
+
        public static ServiceProvider? ServiceProvider => _serviceProvider;
+
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
@ -28,6 +28,7 @@ namespace BlacksmithWorkshop
            _serviceProvider = services.BuildServiceProvider();
            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
        }
+
        private static void ConfigureServices(ServiceCollection services)
        {
            services.AddLogging(option =>
--- a/BlacksmithWorkshop/BlacksmithWorkshopBusinessLogic/BusinessLogic/OrderLogic.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopBusinessLogic/BusinessLogic/OrderLogic.cs
@ -131,7 +131,7 @@ namespace BlacksmithWorkshopBusinessLogic.BusinessLogic
            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });

            //если не смогли найти указанный заказ по его Id
-            if(viewModel == null)
+            if (viewModel == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
@ -146,7 +146,7 @@ namespace BlacksmithWorkshopBusinessLogic.BusinessLogic
            model.Status = newOrderStatus;

            //проверка на выдачу
-            if(model.Status == OrderStatus.Выдан)
+            if (model.Status == OrderStatus.Выдан)
            {
                model.DateImplement = DateTime.Now;
            }
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/BlacksmithWorkshopFileImplement.csproj
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/BlacksmithWorkshopFileImplement.csproj
@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BlacksmithWorkshopContracts\BlacksmithWorkshopContracts.csproj" />
+    <ProjectReference Include="..\BlacksmithWorkshopDataModels\BlacksmithWorkshopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/DataFileSingleton.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/DataFileSingleton.cs
@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+using BlacksmithWorkshopFileImplement.Models;
+
+namespace BlacksmithWorkshopFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+
+        private readonly string WorkPieceFileName = "WorkPiece.xml";
+
+        private readonly string OrderFileName = "Order.xml";
+
+        private readonly string ManufactureFileName = "Manufacture.xml";
+
+        public List<WorkPiece> WorkPieces { get; private set; }
+
+        public List<Order> Orders { get; private set; }
+
+        public List<Manufacture> Manufactures { get; private set; }
+
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+
+            return instance;
+        }
+
+        public void SaveWorkPieces() => SaveData(WorkPieces, WorkPieceFileName, "WorkPieces", x => x.GetXElement);
+
+        public void SaveManufactures() => SaveData(Manufactures, ManufactureFileName, "Manufactures", x => x.GetXElement);
+
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+
+        private DataFileSingleton()
+        {
+            WorkPieces = LoadData(WorkPieceFileName, "WorkPiece", x => WorkPiece.Create(x)!)!;
+            Manufactures = LoadData(ManufactureFileName, "Manufacture", x => Manufacture.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+
+            return new List<T>();
+        }
+
+        private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/ManufactureStorage.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/ManufactureStorage.cs
@ -0,0 +1,97 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.StoragesContracts;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopFileImplement.Implements
+{
+    //реализация интерфейса хранилища изделий
+    public class ManufactureStorage : IManufactureStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ManufactureStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<ManufactureViewModel> GetFullList()
+        {
+            return source.Manufactures.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ManufactureViewModel> GetFilteredList(ManufactureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ManufactureName))
+            {
+                return new();
+            }
+
+            return source.Manufactures.Where(x => x.ManufactureName.Contains(model.ManufactureName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public ManufactureViewModel? GetElement(ManufactureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ManufactureName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Manufactures.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ManufactureName) && x.ManufactureName == model.ManufactureName)
+                || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public ManufactureViewModel? Insert(ManufactureBindingModel model)
+        {
+            model.Id = source.Manufactures.Count > 0 ? source.Manufactures.Max(x => x.Id) + 1 : 1;
+
+            var newManufacture = Manufacture.Create(model);
+
+            if (newManufacture == null)
+            {
+                return null;
+            }
+
+            source.Manufactures.Add(newManufacture);
+            source.SaveManufactures();
+
+            return newManufacture.GetViewModel;
+        }
+
+        public ManufactureViewModel? Update(ManufactureBindingModel model)
+        {
+            var manufacture = source.Manufactures.FirstOrDefault(x => x.Id == model.Id);
+
+            if (manufacture == null)
+            {
+                return null;
+            }
+
+            manufacture.Update(model);
+            source.SaveManufactures();
+
+            return manufacture.GetViewModel;
+        }
+
+        public ManufactureViewModel? Delete(ManufactureBindingModel model)
+        {
+            var element = source.Manufactures.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Manufactures.Remove(element);
+                source.SaveManufactures();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/OrderStorage.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/OrderStorage.cs
@ -0,0 +1,111 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.StoragesContracts;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopFileImplement.Implements
+{
+    //реализация интерфейса хранилища заказов
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Orders.FirstOrDefault(x =>(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        //для загрузки названий изделия в заказе
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+
+            var manufacture = source.Manufactures.FirstOrDefault(x => x.Id == order.ManufactureId);
+
+            if(manufacture != null)
+            {
+                viewModel.ManufactureName = manufacture.ManufactureName;
+            }
+
+            return viewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            source.SaveOrders();
+
+            return GetViewModel(order);
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+
+                return GetViewModel(element);
+            }
+
+            return null;
+        }
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/WorkPieceStorage.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Implements/WorkPieceStorage.cs
@ -0,0 +1,98 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.SearchModels;
+using BlacksmithWorkshopContracts.StoragesContracts;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BlacksmithWorkshopFileImplement.Implements
+{
+    //реализация интерфейса хранилища заготовок
+    public class WorkPieceStorage : IWorkPieceStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public WorkPieceStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<WorkPieceViewModel> GetFullList()
+        {
+            return source.WorkPieces.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<WorkPieceViewModel> GetFilteredList(WorkPieceSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkPieceName))
+            {
+                return new();
+            }
+
+            return source.WorkPieces.Where(x => x.WorkPieceName.Contains(model.WorkPieceName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public WorkPieceViewModel? GetElement(WorkPieceSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkPieceName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.WorkPieces.FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkPieceName) && x.WorkPieceName == model.WorkPieceName)
+                || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Insert(WorkPieceBindingModel model)
+        {
+            model.Id = source.WorkPieces.Count > 0 ? source.WorkPieces.Max(x => x.Id) + 1 : 1;
+
+            var newWorkPiece = WorkPiece.Create(model);
+            
+            if (newWorkPiece == null)
+            {
+                return null;
+            }
+
+            source.WorkPieces.Add(newWorkPiece);
+            source.SaveWorkPieces();
+
+            return newWorkPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Update(WorkPieceBindingModel model)
+        {
+            var workPiece = source.WorkPieces.FirstOrDefault(x => x.Id == model.Id);
+            
+            if (workPiece == null)
+            {
+                return null;
+            }
+
+            workPiece.Update(model);
+            source.SaveWorkPieces();
+
+            return workPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Delete(WorkPieceBindingModel model)
+        {
+            var element = source.WorkPieces.FirstOrDefault(x => x.Id == model.Id);
+            
+            if (element != null)
+            {
+                source.WorkPieces.Remove(element);
+                source.SaveWorkPieces();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Manufacture.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Manufacture.cs
@ -0,0 +1,108 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace BlacksmithWorkshopFileImplement.Models
+{
+    //класс реализующий интерфейс модели изделия
+    public class Manufacture : IManufactureModel
+    {
+        public int Id { get; private set; }
+
+        public string ManufactureName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public Dictionary<int, int> WorkPieces { get; private set; } = new();
+
+
+        private Dictionary<int, (IWorkPieceModel, int)>? _manufactureWorkPieces = null;
+
+        public Dictionary<int, (IWorkPieceModel, int)> ManufactureWorkPieces
+        {
+            get
+            {
+                if (_manufactureWorkPieces == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+
+                    _manufactureWorkPieces = WorkPieces.ToDictionary(x => x.Key, 
+                        y => ((source.WorkPieces.FirstOrDefault(z => z.Id == y.Key) as IWorkPieceModel)!, y.Value));
+                }
+
+                return _manufactureWorkPieces;
+            }
+        }
+
+        public static Manufacture? Create(ManufactureBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Manufacture()
+            {
+                Id = model.Id,
+                ManufactureName = model.ManufactureName,
+                Price = model.Price,
+                WorkPieces = model.ManufactureWorkPieces.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Manufacture? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Manufacture()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ManufactureName = element.Element("ManufactureName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                WorkPieces = element.Element("ManufactureWorkPieces")!.Elements("ManufactureWorkPieces").ToDictionary(
+                    x => Convert.ToInt32(x.Element("Key")?.Value), 
+                    x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(ManufactureBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            ManufactureName = model.ManufactureName;
+            Price = model.Price;
+            WorkPieces = model.ManufactureWorkPieces.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _manufactureWorkPieces = null;
+        }
+
+        public ManufactureViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ManufactureName = ManufactureName,
+            Price = Price,
+            ManufactureWorkPieces = ManufactureWorkPieces
+        };
+
+        public XElement GetXElement => new("Manufacture", 
+            new XAttribute("Id", Id), 
+            new XElement("ManufactureName", ManufactureName), 
+            new XElement("Price", Price.ToString()), 
+            new XElement("ManufactureWorkPieces", WorkPieces.Select(
+                x => new XElement("ManufactureWorkPieces", 
+                    new XElement("Key", x.Key), 
+                    new XElement("Value", x.Value))
+                ).ToArray()));
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Order.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/Order.cs
@ -0,0 +1,103 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopDataModels.Enums;
+using BlacksmithWorkshopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace BlacksmithWorkshopFileImplement.Models
+{
+    //класс, реализующий интерфейс модели заказа
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int ManufactureId { get; private set; }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                ManufactureId = model.ManufactureId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ManufactureId = Convert.ToInt32(element.Element("ManufactureId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null : 
+                    Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+
+        public void Update(OrderBindingModel model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ManufactureId = ManufactureId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("ManufactureId", ManufactureId.ToString()),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString()));
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/WorkPiece.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopFileImplement/Models/WorkPiece.cs
@ -0,0 +1,76 @@
+using BlacksmithWorkshopContracts.BindingModels;
+using BlacksmithWorkshopContracts.ViewModels;
+using BlacksmithWorkshopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace BlacksmithWorkshopFileImplement.Models
+{
+    //реализация интерфейса модели заготовки
+    public class WorkPiece : IWorkPieceModel
+    {
+        public int Id { get; private set; }
+
+        public string WorkPieceName { get; private set; } = string.Empty;
+
+        public double Cost { get; set; }
+
+        public static WorkPiece? Create(WorkPieceBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = model.Id,
+                WorkPieceName = model.WorkPieceName,
+                Cost = model.Cost
+            };
+        }
+
+        public static WorkPiece? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                WorkPieceName = element.Element("WorkPieceName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+
+        public void Update(WorkPieceBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            WorkPieceName = model.WorkPieceName;
+            Cost = model.Cost;
+        }
+
+        public WorkPieceViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkPieceName = WorkPieceName,
+            Cost = Cost
+        };
+
+        public XElement GetXElement => new("WorkPiece", 
+            new XAttribute("Id", Id), 
+            new XElement("WorkPieceName", WorkPieceName), 
+            new XElement("Cost", Cost.ToString()));
+    }
+}
--- a/BlacksmithWorkshop/BlacksmithWorkshopListImplement/Models/Manufacture.cs
+++ b/BlacksmithWorkshop/BlacksmithWorkshopListImplement/Models/Manufacture.cs
@ -9,7 +9,7 @@ using System.Threading.Tasks;

 namespace BlacksmithWorkshopListImplement.Models
 {
-    //класс реализующий интерфейс модели изделия
+    //класс, реализующий интерфейс модели изделия
    public class Manufacture : IManufactureModel
    {
        //методы set делаем приватным, чтобы исключить неразрешённые манипуляции