Base.03

Diner/Diner.sln

@@ -3,7 +3,19 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.7.34221.43
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DinerView", "DinerView\DinerView.csproj", "{7FC291E6-FE0A-4D25-B46F-724FB599F26F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DinerView", "DinerView\DinerView.csproj", "{7FC291E6-FE0A-4D25-B46F-724FB599F26F}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DinerDataModels", "DinerDataModels\DinerDataModels.csproj", "{2AFAC265-13C0-432E-8F33-ABF764FD0877}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DinerContracts", "DinerContracts\DinerContracts.csproj", "{89BA6B4F-1F08-4327-B88B-E48335742088}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DinerListImplement", "DinerListImplement\DinerListImplement.csproj", "{33BCF269-AF60-4E7E-9F3B-2ECEDCEBF8F9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DineryBusinessLogic", "DineryBusinessLogic\DineryBusinessLogic.csproj", "{2920D9E3-AE18-4914-BD43-C04D9123FBD7}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DinerFileImplement", "DinerShopImplement\DinerFileImplement.csproj", "{E46007E3-F3EC-4551-A203-19361E7B1B8D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DinerDataBaseImplement", "DinerDataBaseImplement\DinerDataBaseImplement.csproj", "{42A59EB5-A475-4CEF-AE2F-1396D6BFD143}"
 EndProject
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 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
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+		{33BCF269-AF60-4E7E-9F3B-2ECEDCEBF8F9}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+		{2920D9E3-AE18-4914-BD43-C04D9123FBD7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2920D9E3-AE18-4914-BD43-C04D9123FBD7}.Release|Any CPU.Build.0 = Release|Any CPU
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+		{E46007E3-F3EC-4551-A203-19361E7B1B8D}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+		{E46007E3-F3EC-4551-A203-19361E7B1B8D}.Release|Any CPU.Build.0 = Release|Any CPU
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+		{42A59EB5-A475-4CEF-AE2F-1396D6BFD143}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Diner/DinerContracts/BindingModels/FoodBindingModel.cs

@@ -0,0 +1,18 @@
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BindingModels
+{
+    public class FoodBindingModel : IFoodModel
+    {
+        public string ComponentName { get; set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public int ID { get; set; }
+    }
+}

Diner/DinerContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,27 @@
+using DinerDataModels.Enums;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int ProductID { get; set; }
+
+        public int Count { get; set; }
+
+        public double Sum { get; set; }
+
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; set; } 
+
+        public int ID { get; set; }
+    }
+}

Diner/DinerContracts/BindingModels/SnackBindingModel.cs

@@ -0,0 +1,20 @@
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BindingModels
+{
+    public class SnackBindingModel : ISnackModel
+    {
+        public string ProductName { get; set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public Dictionary<int, (IFoodModel, int)> ProductComponents { get; set; } = new();
+
+        public int ID { get; set; }
+    }
+}

Diner/DinerContracts/BusinessLogicsContracts/IFoodLogic.cs

@@ -0,0 +1,21 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BusinessLogicsContacts
+{
+    public interface IFoodLogic
+    {
+        List<FoodViewModel>? ReadList(FoodSearchModel? model);
+        FoodViewModel? ReadElement(FoodSearchModel model);
+
+        bool Create(FoodBindingModel model);
+        bool Update(FoodBindingModel model);
+        bool Delete(FoodBindingModel model);
+    }
+}

Diner/DinerContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,22 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BusinessLogicsContacts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+
+    }
+}

Diner/DinerContracts/BusinessLogicsContracts/ISnackLogic.cs

@@ -0,0 +1,21 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.BusinessLogicsContacts
+{
+    public interface ISnackLogic
+    {
+        List<SnackViewModel>? ReadList(SnackSearchModel? model);
+        SnackViewModel? ReadElement(SnackSearchModel model);
+
+        bool Create(SnackBindingModel model);
+        bool Update(SnackBindingModel model);
+        bool Delete(SnackBindingModel model);
+    }
+}

Diner/DinerContracts/DinerContracts.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerDataModels\DinerDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Diner/DinerContracts/SearchModels/FoodSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.SearchModels
+{
+    public class FoodSearchModel
+    {
+        public int? ID { get; set; }
+        public string? ComponentName { get; set; }
+    }
+}

Diner/DinerContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.SearchModels
+{
+    public class OrderSearchModel
+    {
+        public int? ID { get; set; }
+    }
+}

Diner/DinerContracts/SearchModels/SnackSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.SearchModels
+{
+    public class SnackSearchModel
+    {
+        public int? ID { get; set; }
+        public string? ProductName { get; set; }
+    }
+}

Diner/DinerContracts/StoragesContracts/IFoodStorage.cs

@@ -0,0 +1,21 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.StoragesContracts
+{
+    public interface IFoodStorage
+    {
+        List<FoodViewModel> GetFullList();
+        List<FoodViewModel> GetFilteredList(FoodSearchModel model);
+        FoodViewModel? GetElement(FoodSearchModel model);
+        FoodViewModel? Insert(FoodBindingModel model);
+        FoodViewModel? Update(FoodBindingModel model);
+        FoodViewModel? Delete(FoodBindingModel model);
+    }
+}

Diner/DinerContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,22 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.StoragesContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

Diner/DinerContracts/StoragesContracts/ISnackStorage.cs

@@ -0,0 +1,22 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.StoragesContracts
+{
+    public interface ISnackStorage
+    {
+        List<SnackViewModel> GetFullList();
+        List<SnackViewModel> GetFilteredList(SnackSearchModel model);
+        SnackViewModel? GetElement(SnackSearchModel model);
+
+        SnackViewModel? Insert(SnackBindingModel model);
+        SnackViewModel? Update(SnackBindingModel model);
+        SnackViewModel? Delete(SnackBindingModel model);
+    }
+}

Diner/DinerContracts/ViewModels/FoodViewModel.cs

@@ -0,0 +1,22 @@
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.ViewModels
+{
+    public class FoodViewModel : IFoodModel
+    {
+        public int ID { get; set; }
+
+        [DisplayName("Название еды для изготовления")]
+        public string ComponentName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+    }
+}

Diner/DinerContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,38 @@
+using DinerDataModels.Enums;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        public int ProductID { get; set; }
+
+        [DisplayName("Количество")]
+        public int Count { get; set; }
+
+        [DisplayName("Сумма")]
+        public Double Sum {  get; set; }
+
+        [DisplayName("Статус")]
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+
+        [DisplayName("Дата выполнения")]
+        public DateTime? DateImplement { get; set; }
+
+        [DisplayName("Номер")]
+        public int ID { get; set; }
+
+        [DisplayName("Снэк")]
+        // какой снэк изготавливается в рамках заказа
+        public string ProductName { get; set; } = string.Empty; 
+    }
+}

Diner/DinerContracts/ViewModels/SnackViewModel.cs

@@ -0,0 +1,23 @@
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerContracts.ViewModels
+{
+    public class SnackViewModel : ISnackModel
+    {
+        [DisplayName("Название снэка")]
+        public string ProductName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+
+        public Dictionary<int, (IFoodModel, int)> ProductComponents { get; set; } = new();
+
+        public int ID {  get; set; }
+    }
+}

Diner/DinerDataBaseImplement/DinerDataBase.cs

@@ -0,0 +1,19 @@
+using DinerDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace DinerDataBaseImplement
+{
+    public class DinerDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) {
+            if (optionsBuilder.IsConfigured == false) {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-O0N00SH\SQLEXPRESS;Initial Catalog=DinerDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Food> Components { get; set; }
+        public virtual DbSet<Snack> Products { get; set; }
+        public virtual DbSet<SnackFood> ProductComponents { get; set; }
+        public virtual DbSet<Order> Orders { get; set; }
+    }
+}

Diner/DinerDataBaseImplement/DinerDataBaseImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerContracts\DinerContracts.csproj" />
+    <ProjectReference Include="..\DinerDataModels\DinerDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Diner/DinerDataBaseImplement/Implements/FoodStorage.cs

@@ -0,0 +1,86 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerDataBaseImplement.Migrations;
+using DinerDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataBaseImplement.Implements
+{
+    public class FoodStorage : IFoodStorage
+    {
+        public FoodViewModel? Delete(FoodBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var element = context.Components.FirstOrDefault(x => x.ID == model.ID);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public FoodViewModel? GetElement(FoodSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.ID.HasValue) { 
+                return null; 
+            }
+            using var context = new DinerDataBase();
+            return context.Components
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) &&
+                                x.ComponentName == model.ComponentName) || model.ID.HasValue &&
+                                x.ID == model.ID)?.GetViewModel;
+        }
+
+        public List<FoodViewModel> GetFilteredList(FoodSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName)) { 
+                return new(); 
+            
+            }
+            using var context = new DinerDataBase();
+            return context.Components.Where(x => x.ComponentName.Contains(model.ComponentName))
+                                .Select(x => x.GetViewModel).ToList();
+
+        }
+
+        public List<FoodViewModel> GetFullList()
+        {
+            using var context = new DinerDataBase();
+            return context.Components.Select(x => x.GetViewModel).ToList();
+        }
+
+        public FoodViewModel? Insert(FoodBindingModel model)
+        {
+            var newComponent = Food.Create(model);
+            if (newComponent == null) { 
+                return null; 
+            }
+            using var context = new DinerDataBase();    
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+
+        public FoodViewModel? Update(FoodBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var component = context.Components.FirstOrDefault(x => x.ID == model.ID);
+            if (component == null) { 
+                return null; 
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+    }
+}
+

Diner/DinerDataBaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,86 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataBaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var element = context.Orders.FirstOrDefault(x => x.ID == model.ID);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return GetViewModel(element);
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.ID.HasValue) { 
+                return null; 
+            }
+            using var context = new DinerDataBase();
+            return context.Orders
+                .FirstOrDefault(x => model.ID.HasValue && x.ID == model.ID)?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.ID.HasValue) { 
+                return new(); 
+            }
+            using var context = new DinerDataBase();
+            return context.Orders.Where(x => x.ID == model.ID).Select(GetViewModel).ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new DinerDataBase();
+            return context.Orders.Select(GetViewModel).ToList();
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var newOrder = Order.Create(model);
+            if (newOrder == null) { 
+                return null; 
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return GetViewModel(newOrder);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var order = context.Orders.FirstOrDefault(x => x.ID == model.ID);
+            if (order == null) { return null; }
+            order.Update(model);
+            context.SaveChanges();
+            return GetViewModel(order);
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            using var context = new DinerDataBase();
+            var viewModel = order.GetViewModel;
+            foreach (var pr in context.Products) { 
+                if (pr.ID == order.ProductID) { 
+                    viewModel.ProductName = pr.ProductName; 
+                    break;
+                }
+            }
+            return viewModel;
+        }
+    }
+}

Diner/DinerDataBaseImplement/Implements/SnackStorage.cs

@@ -0,0 +1,106 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Conventions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataBaseImplement.Implements
+{
+    public class SnackStorage : ISnackStorage
+    {
+        public SnackViewModel? Delete(SnackBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var element = context.Products
+                .Include(x => x.Components)
+                .FirstOrDefault(rec => rec.ID == model.ID);
+            if (element != null)
+            {
+                context.Products.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public SnackViewModel? GetElement(SnackSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ProductName) && !model.ID.HasValue) { 
+                return null; 
+            }
+            using var context = new DinerDataBase();
+            return context.Products
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ProductName) && x.ProductName == model.ProductName) ||
+                                (model.ID.HasValue && x.ID == model.ID))
+                ?.GetViewModel;
+        }
+
+        public List<SnackViewModel> GetFilteredList(SnackSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ProductName)) { 
+                return new(); 
+            }
+            using var context = new DinerDataBase();
+            return context.Products
+                    .Include(x => x.Components)
+                    .ThenInclude(x => x.Component)
+                    .Where(x => x.ProductName.Contains(model.ProductName))
+                    .ToList()
+                    .Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<SnackViewModel> GetFullList()
+        {
+            using var context = new DinerDataBase();
+            return context.Products
+                    .Include(x => x.Components)
+                    .ThenInclude(x => x.Component).ToList()
+                    .Select(x => x.GetViewModel).ToList();
+        }
+
+        public SnackViewModel? Insert(SnackBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            var newProduct = Snack.Create(context, model);
+            if (newProduct == null) { 
+                return null; 
+            }
+            context.Products.Add(newProduct);
+            context.SaveChanges();
+            return newProduct.GetViewModel;
+        }
+
+        public SnackViewModel? Update(SnackBindingModel model)
+        {
+            using var context = new DinerDataBase();
+            using var transcation = context.Database.BeginTransaction();
+            try
+            {
+                var product = context.Products.FirstOrDefault(rec => rec.ID == model.ID);
+                if (product == null) {
+                    return null;
+                }
+                product.Update(model);
+                context.SaveChanges();
+                product.UpdateComponents(context, model);
+                transcation.Commit();
+                return product.GetViewModel;
+            }
+            catch
+            {
+                transcation.Rollback();
+                throw;
+            }
+        }
+    }
+}
+

Diner/DinerDataBaseImplement/Migrations/20240321182759_InitMigration.Designer.cs

@@ -0,0 +1,157 @@
+// <auto-generated />
+using System;
+using DinerDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    [DbContext(typeof(DinerDataBase))]
+    [Migration("20240321182759_InitMigration")]
+    partial class InitMigration
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProductName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("ComponentID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("ComponentID");
+
+                    b.HasIndex("ProductID");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Food", "Component")
+                        .WithMany("SnackFood")
+                        .HasForeignKey("ComponentID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Navigation("SnackFood");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/20240321182759_InitMigration.cs

@@ -0,0 +1,114 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitMigration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComponentName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.ID);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ProductID = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.ID);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Products",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ProductName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Products", x => x.ID);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ProductComponents",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ProductID = table.Column<int>(type: "int", nullable: false),
+                    ComponentID = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ProductComponents", x => x.ID);
+                    table.ForeignKey(
+                        name: "FK_ProductComponents_Components_ComponentID",
+                        column: x => x.ComponentID,
+                        principalTable: "Components",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ProductComponents_Products_ProductID",
+                        column: x => x.ProductID,
+                        principalTable: "Products",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProductComponents_ComponentID",
+                table: "ProductComponents",
+                column: "ComponentID");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProductComponents_ProductID",
+                table: "ProductComponents",
+                column: "ProductID");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "ProductComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Products");
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/20240403124835_Migration02.Designer.cs

@@ -0,0 +1,156 @@
+// <auto-generated />
+using System;
+using DinerDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    [DbContext(typeof(DinerDataBase))]
+    [Migration("20240403124835_Migration02")]
+    partial class Migration02
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProductName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("ComponentID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("ComponentID");
+
+                    b.HasIndex("ProductID");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Food", "Component")
+                        .WithMany("SnackFood")
+                        .HasForeignKey("ComponentID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Navigation("SnackFood");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/20240403124835_Migration02.cs

@@ -0,0 +1,37 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Migration02 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "datetime2",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "datetime2");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "datetime2",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                oldClrType: typeof(DateTime),
+                oldType: "datetime2",
+                oldNullable: true);
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/20240405063803_Migration03.Designer.cs

@@ -0,0 +1,170 @@
+// <auto-generated />
+using System;
+using DinerDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    [DbContext(typeof(DinerDataBase))]
+    [Migration("20240405063803_Migration03")]
+    partial class Migration03
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.Property<int?>("SnackID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("SnackID");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProductName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("ComponentID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("ComponentID");
+
+                    b.HasIndex("ProductID");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Snack")
+                        .WithMany()
+                        .HasForeignKey("SnackID");
+
+                    b.Navigation("Snack");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Food", "Component")
+                        .WithMany("SnackFood")
+                        .HasForeignKey("ComponentID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Navigation("SnackFood");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/20240405063803_Migration03.cs

@@ -0,0 +1,48 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Migration03 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "SnackID",
+                table: "Orders",
+                type: "int",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_SnackID",
+                table: "Orders",
+                column: "SnackID");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Orders_Products_SnackID",
+                table: "Orders",
+                column: "SnackID",
+                principalTable: "Products",
+                principalColumn: "ID");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Orders_Products_SnackID",
+                table: "Orders");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Orders_SnackID",
+                table: "Orders");
+
+            migrationBuilder.DropColumn(
+                name: "SnackID",
+                table: "Orders");
+        }
+    }
+}

Diner/DinerDataBaseImplement/Migrations/DinerDataBaseModelSnapshot.cs

@@ -0,0 +1,167 @@
+// <auto-generated />
+using System;
+using DinerDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DinerDataBaseImplement.Migrations
+{
+    [DbContext(typeof(DinerDataBase))]
+    partial class DinerDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Components", (string)null);
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.Property<int?>("SnackID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("SnackID");
+
+                    b.ToTable("Orders", (string)null);
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProductName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("ID");
+
+                    b.ToTable("Products", (string)null);
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.Property<int>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("ID"));
+
+                    b.Property<int>("ComponentID")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProductID")
+                        .HasColumnType("int");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("ComponentID");
+
+                    b.HasIndex("ProductID");
+
+                    b.ToTable("ProductComponents", (string)null);
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Snack")
+                        .WithMany()
+                        .HasForeignKey("SnackID");
+
+                    b.Navigation("Snack");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.SnackFood", b =>
+                {
+                    b.HasOne("DinerDataBaseImplement.Models.Food", "Component")
+                        .WithMany("SnackFood")
+                        .HasForeignKey("ComponentID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DinerDataBaseImplement.Models.Snack", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Food", b =>
+                {
+                    b.Navigation("SnackFood");
+                });
+
+            modelBuilder.Entity("DinerDataBaseImplement.Models.Snack", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Diner/DinerDataBaseImplement/Models/Food.cs

@@ -0,0 +1,60 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace DinerDataBaseImplement.Models
+{
+    public class Food : IFoodModel
+    {
+        [Required]
+        public string ComponentName { get; set; } = string.Empty;
+
+        [Required]
+        public double Price { get; set; }
+
+        public int ID { get; set; }
+
+        [ForeignKey("ComponentID")]
+        public virtual List<SnackFood> SnackFood { get; set;} = new();
+
+        public static Food? Create(FoodBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Food()
+            {
+                ID = model.ID,
+                ComponentName = model.ComponentName,
+                Price = model.Price,
+            };
+        }
+        public static Food? Create(FoodViewModel model)
+        {
+            return new Food
+            {
+                ID = model.ID,
+                ComponentName = model.ComponentName,
+                Price = model.Price,
+            };
+        }
+        public void Update(FoodBindingModel? model)
+        {
+            if (model == null) return;
+            ComponentName = model.ComponentName;
+            Price = model.Price;
+        }
+        public FoodViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ComponentName = ComponentName,
+            Price = Price,
+        };
+    }
+}

Diner/DinerDataBaseImplement/Models/Order.cs

@@ -0,0 +1,66 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataBaseImplement.Implements;
+using DinerDataModels.Enums;
+using DinerDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.Xml.Linq;
+
+namespace DinerDataBaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        [Required]
+        public int ProductID { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        [Required]
+        public double Sum { get; private set; }
+
+        [Required]
+        public OrderStatus Status { get; set; }
+
+        [Required]
+        public DateTime DateCreate { get; private set; }
+        
+        public DateTime? DateImplement { get; set; }
+
+        public int ID { get; private set; }
+
+        public virtual Snack? Snack { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Order()
+            {
+                ID = model.ID,
+                ProductID = model.ProductID,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null) return;
+            Status = model.Status;
+            DateImplement = model?.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ProductID = ProductID,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+    }
+}

Diner/DinerDataBaseImplement/Models/Snack.cs

@@ -0,0 +1,96 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace DinerDataBaseImplement.Models
+{
+    public class Snack : ISnackModel
+    {
+        [Required]
+        public string ProductName { get; private set; } = string.Empty;
+
+        [Required]
+        public double Price { get; private set; }
+
+        public int ID { get; private set; }
+
+        private Dictionary<int, (IFoodModel, int)>? _productComponents = null;
+
+        [NotMapped]
+        public Dictionary<int, (IFoodModel, int)> ProductComponents
+        {
+            get
+            {
+                if (_productComponents == null)
+                {
+                    _productComponents = Components
+                        .ToDictionary(recPC => recPC.ComponentID, recPC => (recPC.Component as IFoodModel, recPC.Count));
+                }
+                return _productComponents;
+            }
+        }
+        [ForeignKey("ProductID")]
+        public virtual List<SnackFood> Components { get; set; } = new();
+        public static Snack? Create(DinerDataBase context,SnackBindingModel model)
+        {
+            return new Snack()
+            {
+                ID = model.ID,
+                ProductName = model.ProductName,
+                Price = model.Price,
+                Components = model.ProductComponents.Select(x => new SnackFood
+                {
+                    Component = context.Components.First(y => y.ID == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+       
+        public void Update(SnackBindingModel model)
+        {
+            ProductName = model.ProductName;
+            Price = model.Price;
+        }
+        public SnackViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ProductName = ProductName,
+            Price = Price,
+            ProductComponents = ProductComponents
+        };
+
+        public void UpdateComponents(DinerDataBase context, SnackBindingModel model) { 
+            var productComponents = context.ProductComponents.Where(rec => rec.ProductID == model.ID).ToList();
+            if (ProductComponents != null && ProductComponents.Count > 0) {
+                context.ProductComponents.RemoveRange(productComponents.Where(rec => !model.ProductComponents.ContainsKey(rec.ComponentID)));
+                context.SaveChanges();
+                foreach (var updateComponent in productComponents) {
+                    updateComponent.Count = model.ProductComponents[updateComponent.ComponentID].Item2;
+                    model.ProductComponents.Remove(updateComponent.ComponentID);
+                }
+                context.SaveChanges();
+            }
+            var product = context.Products.First(x => x.ID == ID);
+            foreach (var pc in model.ProductComponents) {
+                context.ProductComponents.Add(new SnackFood
+                {
+                    Product = product,
+                    Component = context.Components.First(x => x.ID == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _productComponents = null;
+        }
+    }
+}

Diner/DinerDataBaseImplement/Models/SnackFood.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DinerDataBaseImplement.Models
+{
+    public class SnackFood
+    {
+        public int ID { get; set; }
+
+        [Required]
+        public int ProductID { get; set; }
+
+        [Required]
+        public int ComponentID { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Food Component { get; set; } = new();
+
+        public virtual Snack Product { get; set; } = new();
+    }
+}

Diner/DinerDataModels/DinerDataModels.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Diner/DinerDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+
+        Принят = 0,
+
+        Выполняется = 1,
+
+        Готов = 2,
+
+        Выдан = 3
+    }
+}

Diner/DinerDataModels/IID.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataModels
+{
+    public interface IID
+    {
+        int ID { get; }
+    }
+}

Diner/DinerDataModels/Models/IFoodModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataModels.Models
+{
+    public interface IFoodModel : IID
+    {
+        string ComponentName { get; }
+        double Price { get; }
+    }
+}

Diner/DinerDataModels/Models/IOrderModel.cs

@@ -0,0 +1,19 @@
+using DinerDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataModels.Models
+{
+    public interface IOrderModel : IID
+    {
+        int ProductID { get; }
+        int Count { get; }
+        double Sum { get; }
+        OrderStatus Status { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement {  get; }
+    }
+}

Diner/DinerDataModels/Models/ISnackModel.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerDataModels.Models
+{
+    public interface ISnackModel : IID
+    {
+        string ProductName { get; }
+        double Price { get; }
+
+        // словарь для компонент.
+        // <id,(модель компонент, количество)>
+        Dictionary<int, (IFoodModel, int)> ProductComponents { get; }
+
+    }
+}

Diner/DinerListImplement/DataListSingleton.cs

@@ -0,0 +1,28 @@
+using DinerListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement
+{
+    internal class DataListSingleton
+    {
+        public static DataListSingleton? _instance;
+
+        public List<Food> Foods { get; set; }
+        public List<Snack> Snacks { get; set; }
+        public List<Order> Orders { get; set; }
+
+        private DataListSingleton() { 
+            Foods = new List<Food>();
+            Snacks = new List<Snack>();
+            Orders = new List<Order>();
+        }
+        public static DataListSingleton GetInstance() { 
+            if (_instance == null) _instance = new DataListSingleton();
+            return _instance;
+        }
+    }
+}

Diner/DinerListImplement/DinerListImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerContracts\DinerContracts.csproj" />
+    <ProjectReference Include="..\DinerDataModels\DinerDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Diner/DinerListImplement/Implements/FoodStorage.cs

@@ -0,0 +1,98 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Implements
+{
+    public class FoodStorage : IFoodStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public FoodStorage() { 
+            _source = DataListSingleton.GetInstance();
+        }
+
+        public FoodViewModel? Delete(FoodBindingModel model)
+        {
+            for (int i = 0; i < _source.Foods.Count; ++i) { 
+                if (_source.Foods[i].ID == model.ID) { 
+                    var element = _source.Foods[i];
+                    _source.Foods.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public FoodViewModel? GetElement(FoodSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.ID.HasValue) { 
+                return null;
+            }
+            foreach (var component in _source.Foods) { 
+                if ((!string.IsNullOrEmpty(model.ComponentName) &&
+                    component.ComponentName == model.ComponentName) ||
+                    (model.ID.HasValue && component.ID == model.ID)) {
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public List<FoodViewModel> GetFilteredList(FoodSearchModel model)
+        {
+            var result = new List<FoodViewModel>();
+            if (string.IsNullOrEmpty(model.ComponentName)) { 
+                return result;
+            }
+            foreach (var component in _source.Foods) { 
+                if (component.ComponentName.Contains(model.ComponentName)) {
+                    result.Add(component.GetViewModel);
+                }
+            }
+            return result;
+        }
+
+        public List<FoodViewModel> GetFullList()
+        {
+            var result = new List<FoodViewModel>();
+            foreach (var component in _source.Foods) {
+                result.Add(component.GetViewModel);
+            }
+            return result;
+        }
+
+        public FoodViewModel? Insert(FoodBindingModel model)
+        {
+            model.ID = 1;
+            foreach (var component in _source.Foods) { 
+                if (model.ID <= component.ID) { 
+                    model.ID = component.ID + 1;
+                }
+            }
+            var newComponent = Food.Create(model);
+            if (newComponent == null) return null;
+            _source.Foods.Add(newComponent);
+            return newComponent.GetViewModel;
+        }
+
+        public FoodViewModel? Update(FoodBindingModel model)
+        {
+            foreach (var component in _source.Foods) { 
+                if (component.ID == model.ID) {
+                    component.Update(model);
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

Diner/DinerListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,103 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public OrderStorage() { 
+            _source = DataListSingleton.GetInstance();
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for (int i = 0; i < _source.Orders.Count; ++i) { 
+                if (_source.Orders[i].ID == model.ID) { 
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+                    return GetViewModel(element);
+                }
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.ID.HasValue) return null;
+            foreach (var order in _source.Orders) { 
+                if (model.ID.HasValue && order.ID == model.ID) { 
+                    return GetViewModel(order);
+                }
+            }
+            return null;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (!model.ID.HasValue) return result;
+            foreach (var order in _source.Orders) { 
+                if (order.ID == model.ID) {
+                    result.Add(GetViewModel(order));
+                }
+            }
+            return result;
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            var result = new List<OrderViewModel>();
+            foreach (var order in _source.Orders) {
+                result.Add(GetViewModel(order));
+            }
+            return result;
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            foreach (var product in _source.Snacks)
+            {
+                if (product.ID == order.ProductID)
+                {
+                    viewModel.ProductName = product.ProductName;
+                    break;
+                }
+            }
+            return viewModel;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.ID = 1;
+            foreach (var order in _source.Orders) {
+                if (model.ID <= order.ID) {
+                    model.ID = order.ID + 1;
+                }
+            }
+            var newOrder = Order.Create(model);
+            if (newOrder == null) return null;
+            _source.Orders.Add(newOrder);
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders) { 
+                if (order.ID == model.ID) {
+                    order.Update(model);
+                    return GetViewModel(order);
+                }
+            }
+            return null;
+        }
+    }
+}

Diner/DinerListImplement/Implements/SnackStorage.cs

@@ -0,0 +1,97 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Implements
+{
+    public class SnackStorage : ISnackStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public SnackStorage() { 
+            _source = DataListSingleton.GetInstance();
+        }
+
+        public SnackViewModel? Delete(SnackBindingModel model)
+        {
+            for (int i = 0; i < _source.Snacks.Count; ++i) { 
+                if (_source.Snacks[i].ID == model.ID) { 
+                    var element = _source.Snacks[i];
+                    _source.Snacks.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public SnackViewModel? GetElement(SnackSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ProductName) && !model.ID.HasValue) { 
+                return null;
+            }
+            foreach (var product in _source.Snacks) { 
+                if ((!string.IsNullOrEmpty(model.ProductName) &&
+                    product.ProductName == model.ProductName) ||
+                    (model.ID.HasValue && product.ID == model.ID)) { 
+                    return product.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public List<SnackViewModel> GetFilteredList(SnackSearchModel model)
+        {
+            var result = new List<SnackViewModel>();
+            if (string.IsNullOrEmpty(model.ProductName)) { 
+                return result;
+            }
+            foreach (var product in _source.Snacks) { 
+                if (product.ProductName.Contains(model.ProductName)) { 
+                    result.Add(product.GetViewModel);
+                }
+            }
+            return result;
+        }
+
+        public List<SnackViewModel> GetFullList()
+        {
+            var result = new List<SnackViewModel>();
+            foreach (var product in _source.Snacks) { 
+                result.Add(product.GetViewModel);
+            }
+            return result;
+        }
+
+        public SnackViewModel? Insert(SnackBindingModel model)
+        {
+            model.ID = 1;
+            foreach (var product in _source.Snacks) { 
+                if (model.ID <= product.ID) {
+                    model.ID = product.ID + 1;
+                }
+            }
+            var newProduct = Snack.Create(model);
+            if (newProduct == null) return null;
+            _source.Snacks.Add(newProduct);
+            return newProduct.GetViewModel;
+        }
+
+        public SnackViewModel? Update(SnackBindingModel model)
+        {
+            foreach (var product in _source.Snacks) { 
+                if (product.ID == model.ID) {
+                    product.Update(model);
+                    return product.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

Diner/DinerListImplement/Models/Food.cs

@@ -0,0 +1,39 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Models
+{
+    internal class Food : IFoodModel
+    {
+        public string ComponentName { get; private set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public int ID { get; private set; }
+
+        public static Food? Create(FoodBindingModel? model) { 
+            if (model == null) return null;
+            return new Food() { 
+                ID = model.ID,
+                ComponentName = model.ComponentName,
+                Price = model.Price,
+            };
+        }
+        public void Update(FoodBindingModel? model) {
+            if (model == null) return;
+            ComponentName = model.ComponentName;
+            Price = model.Price;
+        }
+        public FoodViewModel GetViewModel => new(){
+            ID = ID,
+            ComponentName = ComponentName,
+            Price = Price,
+        };
+    }
+}

Diner/DinerListImplement/Models/Order.cs

@@ -0,0 +1,58 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Enums;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Models
+{
+    internal class Order : IOrderModel
+    {
+        public int ProductID { get; private set; } 
+
+        public int Count { get; set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; set; }
+
+        public DateTime DateCreate { get; private set; }
+
+        public DateTime? DateImplement { get; set; }
+
+        public int ID { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model) { 
+            if (model == null) return null;
+            return new Order()
+            {
+                ID = model.ID,
+                ProductID = model.ProductID,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public void Update(OrderBindingModel? model) {
+            if (model == null) return;
+            Status = model.Status;
+            DateImplement = model?.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ProductID = ProductID,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

Diner/DinerListImplement/Models/Snack.cs

@@ -0,0 +1,46 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerListImplement.Models
+{
+    internal class Snack : ISnackModel
+    {
+        public string ProductName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public Dictionary<int, (IFoodModel, int)> ProductComponents { get; private set; } = 
+            new Dictionary<int, (IFoodModel, int)>();
+
+        public int ID { get; private set; }
+
+        public static Snack? Create(SnackBindingModel? model) {
+            if (model == null) return null;
+            return new Snack() { 
+                ID = model.ID,
+                ProductName = model.ProductName,
+                Price = model.Price,
+                ProductComponents = model.ProductComponents
+            };
+        }
+        public void Update(SnackBindingModel? model) {
+            if (model == null) return;
+            ProductName = model.ProductName;
+            Price = model.Price;
+            ProductComponents = model.ProductComponents;
+        }
+        public SnackViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ProductName = ProductName,
+            Price = Price,
+            ProductComponents = ProductComponents
+        };
+    }
+}

Diner/DinerShopImplement/DataFileSingleton.cs

@@ -0,0 +1,59 @@
+using DinerFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace DinerFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+
+        private readonly string FoodFileName = "Food.xml";
+
+        private readonly string OrderFileName = "Order.xml";
+
+        private readonly string SnackFileName = "Snack.xml";
+
+        public List<Food> Foods { get; set; }
+        public List<Order> Orders { get; private set; }
+        public List<Snack> Snacks { get; private set; }
+
+        private DataFileSingleton() {
+            Foods = LoadData(FoodFileName, "Food", x => Food.Create(x)!)!;
+            Snacks = LoadData(SnackFileName, "Snack", x => Snack.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+        public static DataFileSingleton GetInstance() { 
+            if (instance == null) instance = new DataFileSingleton();
+            return instance;
+        }
+        public void SaveFoods() => SaveData(Foods, FoodFileName, "Foods",
+                                                x => x.GetXElement);
+        public void SaveSnacks() => SaveData(Snacks, SnackFileName, "Snacks",
+                                                x => x.GetXElement);
+        public void SaveOrder() => SaveData(Orders, OrderFileName, "Orders",
+                                                x => x.GetXElement);
+        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);
+            }
+        }
+        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>();
+        }
+    }
+}

Diner/DinerShopImplement/DinerFileImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerContracts\DinerContracts.csproj" />
+    <ProjectReference Include="..\DinerDataModels\DinerDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Diner/DinerShopImplement/Implements/FoodStorage.cs

@@ -0,0 +1,75 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerFileImplement.Implements
+{
+    public class FoodStorage : IFoodStorage
+    {
+        private readonly DataFileSingleton _source;
+
+        public FoodStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public FoodViewModel? Delete(FoodBindingModel model)
+        {
+            var element = _source.Foods.FirstOrDefault(x => x.ID == model.ID);
+            if (element != null) {
+                _source.Foods.Remove(element);
+                _source.SaveFoods();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public FoodViewModel? GetElement(FoodSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.ID.HasValue) { return null; }
+            return _source.Foods
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) &&
+                                x.ComponentName == model.ComponentName) || model.ID.HasValue &&
+                                x.ID == model.ID)?.GetViewModel;
+        }
+
+        public List<FoodViewModel> GetFilteredList(FoodSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName)) { return new(); }
+            return _source.Foods.Where(x => x.ComponentName.Contains(model.ComponentName))
+                                .Select(x => x.GetViewModel).ToList();
+
+        }
+
+        public List<FoodViewModel> GetFullList()
+        {
+            return _source.Foods.Select(x => x.GetViewModel).ToList();
+        }
+
+        public FoodViewModel? Insert(FoodBindingModel model)
+        {
+            model.ID = _source.Foods.Count > 0 ? _source.Foods.Max(x => x.ID) + 1 : 1;
+            var newComponent = Food.Create(model);
+            if (newComponent == null) { return null; }
+            _source.Foods.Add(newComponent);
+            _source.SaveFoods();
+            return newComponent.GetViewModel;
+        }
+
+        public FoodViewModel? Update(FoodBindingModel model)
+        {
+            var component = _source.Foods.FirstOrDefault(x => x.ID == model.ID);
+            if (component == null) { return null; }
+            component.Update(model);
+            _source.SaveFoods();
+            return component.GetViewModel;
+        }
+    }
+}

Diner/DinerShopImplement/Implements/OrderStorage.cs

@@ -0,0 +1,81 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http.Headers;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton _source;
+
+        public OrderStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = _source.Orders.FirstOrDefault(x => x.ID == model.ID);
+            if (element != null) { 
+                _source.Orders.Remove(element);
+                _source.SaveOrder();
+                return GetViewModel(element);
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.ID.HasValue) { return null; }
+            return _source.Orders
+                .FirstOrDefault(x => model.ID.HasValue && x.ID == model.ID)?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.ID.HasValue) { return new(); }
+            return _source.Orders.Where(x => x.ID == model.ID).Select(GetViewModel).ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return _source.Orders.Select(GetViewModel).ToList();
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var tmp = from p in _source.Snacks
+                      where p.ID == order.ProductID 
+                      select p.ProductName;
+            viewModel.ProductName = tmp.FirstOrDefault(string.Empty);
+            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.SaveOrder();
+            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.SaveOrder();
+            return GetViewModel(order);
+        }
+    }
+}

Diner/DinerShopImplement/Implements/SnackStorage.cs

@@ -0,0 +1,74 @@
+using DinerContracts.BindingModels;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DinerFileImplement.Implements
+{
+    public class SnackStorage : ISnackStorage
+    {
+        private readonly DataFileSingleton _source;
+
+        public SnackStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public SnackViewModel? Delete(SnackBindingModel model)
+        {
+            var element = _source.Snacks.FirstOrDefault(x => x.ID == model.ID);
+            if (element != null) { 
+                _source.Snacks.Remove(element);
+                _source.SaveSnacks();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public SnackViewModel? GetElement(SnackSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ProductName) && !model.ID.HasValue) { return null; }
+            return _source.Snacks
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ProductName) &&
+                x.ProductName == model.ProductName) || model.ID.HasValue &&
+                x.ID == model.ID)?.GetViewModel;
+        }
+
+        public List<SnackViewModel> GetFilteredList(SnackSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ProductName)) { return new(); }
+            return _source.Snacks.Where(x => x.ProductName.Contains(model.ProductName))
+                                    .Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<SnackViewModel> GetFullList()
+        {
+            return _source.Snacks.Select(x => x.GetViewModel).ToList(); 
+        }
+
+        public SnackViewModel? Insert(SnackBindingModel model)
+        {
+            model.ID = _source.Snacks.Count > 0 ? _source.Snacks.Max(x => x.ID) + 1 : 1;
+            var newProduct = Snack.Create(model);
+            if (newProduct == null) { return null; }
+            _source.Snacks.Add(newProduct);
+            _source.SaveSnacks();
+            return newProduct.GetViewModel;
+        }
+
+        public SnackViewModel? Update(SnackBindingModel model)
+        {
+            var product = _source.Snacks.FirstOrDefault(x => x.ID == model.ID);
+            if (product == null) { return null; }
+            product.Update(model);
+            _source.SaveSnacks();
+            return product.GetViewModel;
+        }
+    }
+}

Diner/DinerShopImplement/Models/Food.cs

@@ -0,0 +1,57 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace DinerFileImplement.Models
+{
+    internal class Food : IFoodModel
+    {
+        public string ComponentName { get; set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public int ID { get; set; }
+
+        public static Food? Create(FoodBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Food()
+            {
+                ID = model.ID,
+                ComponentName = model.ComponentName,
+                Price = model.Price,
+            };
+        }
+        public static Food? Create(XElement element) {
+            if (element == null) return null;
+            return new Food()
+            {
+                ID = Convert.ToInt32(element.Attribute("ID")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value)
+            };
+        }
+        public void Update(FoodBindingModel? model)
+        {
+            if (model == null) return;
+            ComponentName = model.ComponentName;
+            Price = model.Price;
+        }
+        public FoodViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ComponentName = ComponentName,
+            Price = Price,
+        };
+
+        public XElement GetXElement => new("Food", new XAttribute("ID", ID),
+                                            new XElement("ComponentName", ComponentName),
+                                            new XElement("Price", Price.ToString()));
+    }
+}

Diner/DinerShopImplement/Models/Order.cs

@@ -0,0 +1,84 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Enums;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace DinerFileImplement.Models
+{
+    internal class Order : IOrderModel
+    {
+        public int ProductID { get; private set; }
+
+        public int Count { get; set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; set; }
+
+        public DateTime DateCreate { get; private set; }
+
+        public DateTime? DateImplement { get; set; }
+
+        public int ID { get; private set; }
+
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Order()
+            {
+                ID = model.ID,
+                ProductID = model.ProductID,
+                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),
+                ProductID = Convert.ToInt32(element.Element("ProductID")!.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,
+            ProductID = ProductID,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order", new XAttribute("ID", ID),
+                                        new XElement("ProductID", ProductID),
+                                        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()));
+                
+    }
+}

Diner/DinerShopImplement/Models/Snack.cs

@@ -0,0 +1,83 @@
+using DinerContracts.BindingModels;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+using System.Xml.XPath;
+
+namespace DinerFileImplement.Models
+{
+    internal class Snack : ISnackModel
+    {
+        public string ProductName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public int ID { get; private set; }
+
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IFoodModel, int)>? _productComponents = null;
+        public Dictionary<int, (IFoodModel, int)> ProductComponents
+        {
+            get
+            {
+                if (_productComponents == null) {
+                    var source = DataFileSingleton.GetInstance();
+                    _productComponents = Components.ToDictionary(x => x.Key, y => ((source.Foods.FirstOrDefault(z => z.ID ==
+                                                                    y.Key) as IFoodModel)!, y.Value));
+                }
+                return _productComponents;
+            }
+        }
+
+        public static Snack? Create(SnackBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Snack()
+            {
+                ID = model.ID,
+                ProductName = model.ProductName,
+                Price = model.Price,
+                Components = model.ProductComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Snack? Create(XElement element)
+        {
+            if (element == null) return null;
+            return new Snack()
+            {
+                ID = Convert.ToInt32(element.Attribute("ID")!.Value),
+                ProductName = element.Element("ProductName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("ProductComponents")!.Elements("ProductComponent")
+                                .ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(SnackBindingModel? model)
+        {
+            if (model == null) return;
+            ProductName = model.ProductName;
+            Price = model.Price;
+            Components = model.ProductComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _productComponents = null;
+        }
+        public SnackViewModel GetViewModel => new()
+        {
+            ID = ID,
+            ProductName = ProductName,
+            Price = Price,
+            ProductComponents = ProductComponents
+        };
+        public XElement GetXElement => new("Snack", new XAttribute("ID", ID),
+                                        new XElement("ProductName", ProductName),
+                                        new XElement("Price", Price.ToString()),
+                                        new XElement("ProductComponents", Components.Select(x => new XElement("ProductComponent",
+                                                                                                    new XElement("Key", x.Key),
+                                                                                                    new XElement("Value", x.Value))).ToArray()));
+    }
+}

Diner/DinerView/DinerView.csproj

@@ -2,10 +2,53 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows7.0</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Remove="Nlog.config" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="Nlog.config">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerContracts\DinerContracts.csproj" />
+    <ProjectReference Include="..\DinerDataBaseImplement\DinerDataBaseImplement.csproj" />
+    <ProjectReference Include="..\DinerShopImplement\DinerFileImplement.csproj" />
+    <ProjectReference Include="..\DineryBusinessLogic\DineryBusinessLogic.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="Properties\Resources.Designer.cs">
+      <DesignTime>True</DesignTime>
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Update="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+
 </Project>

Diner/DinerView/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace DinerView
-{
-    partial class Form1
-    {
-        /// <summary>
-        ///  Required designer variable.
-        /// </summary>
-        private System.ComponentModel.IContainer components = null;
-
-        /// <summary>
-        ///  Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
-        #region Windows Form Designer generated code
-
-        /// <summary>
-        ///  Required method for Designer support - do not modify
-        ///  the contents of this method with the code editor.
-        /// </summary>
-        private void InitializeComponent()
-        {
-            this.components = new System.ComponentModel.Container();
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(800, 450);
-            this.Text = "Form1";
-        }
-
-        #endregion
-    }
-}

Diner/DinerView/Form1.cs

@@ -1,10 +0,0 @@
-namespace DinerView
-{
-    public partial class Form1 : Form
-    {
-        public Form1()
-        {
-            InitializeComponent();
-        }
-    }
-}

Diner/DinerView/FormCreateOrder.Designer.cs

@@ -0,0 +1,146 @@
+namespace DinerView
+{
+    partial class FormCreateOrder
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelProduct = new Label();
+            comboBoxProduct = new ComboBox();
+            labelCount = new Label();
+            textBoxCount = new TextBox();
+            label1 = new Label();
+            textBoxSum = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // labelProduct
+            // 
+            labelProduct.AutoSize = true;
+            labelProduct.Location = new Point(12, 9);
+            labelProduct.Name = "labelProduct";
+            labelProduct.Size = new Size(37, 15);
+            labelProduct.TabIndex = 0;
+            labelProduct.Text = "Cнэк:";
+            // 
+            // comboBoxProduct
+            // 
+            comboBoxProduct.BackColor = SystemColors.ButtonShadow;
+            comboBoxProduct.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxProduct.FormattingEnabled = true;
+            comboBoxProduct.Location = new Point(93, 6);
+            comboBoxProduct.Name = "comboBoxProduct";
+            comboBoxProduct.Size = new Size(289, 23);
+            comboBoxProduct.TabIndex = 3;
+            comboBoxProduct.SelectedIndexChanged += comboBoxProduct_SelectedIndexChanged;
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 37);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(75, 15);
+            labelCount.TabIndex = 4;
+            labelCount.Text = "Количество:";
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(93, 34);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(289, 23);
+            textBoxCount.TabIndex = 5;
+            textBoxCount.TextChanged += textBoxCount_TextChanged;
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(12, 66);
+            label1.Name = "label1";
+            label1.Size = new Size(48, 15);
+            label1.TabIndex = 6;
+            label1.Text = "Сумма:";
+            // 
+            // textBoxSum
+            // 
+            textBoxSum.Location = new Point(93, 63);
+            textBoxSum.Name = "textBoxSum";
+            textBoxSum.ReadOnly = true;
+            textBoxSum.Size = new Size(289, 23);
+            textBoxSum.TabIndex = 7;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(307, 92);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 8;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(226, 92);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 9;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // FormCreateOrder
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(394, 122);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxSum);
+            Controls.Add(label1);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelCount);
+            Controls.Add(comboBoxProduct);
+            Controls.Add(labelProduct);
+            Name = "FormCreateOrder";
+            Text = "Заказ";
+            Load += FormCreateOrder_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelProduct;
+        private ComboBox comboBoxProduct;
+        private Label labelCount;
+        private TextBox textBoxCount;
+        private Label label1;
+        private TextBox textBoxSum;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

Diner/DinerView/FormCreateOrder.cs

@@ -0,0 +1,123 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using DinerDataModels.Enums;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormCreateOrder : Form
+    {
+        private readonly ILogger _logger;
+        private readonly ISnackLogic _logicSnack;
+        private readonly IOrderLogic _logicOrder;
+
+        public FormCreateOrder(ILogger<FormCreateOrder> logger, ISnackLogic logicSnack, IOrderLogic logicOrder)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicSnack = logicSnack;
+            _logicOrder = logicOrder;
+        }
+
+        private void CalcSum()
+        {
+            if (comboBoxProduct.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxProduct.SelectedValue);
+                    var product = _logicSnack.ReadElement(new SnackSearchModel { ID = id });
+                    int count = Convert.ToInt32(textBoxCount.Text);
+                    textBoxSum.Text = Math.Round(count * (product?.Price ?? 0), 2).ToString();
+                    _logger.LogInformation("Расчет суммы заказа");
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка расчета суммы заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+
+        }
+
+        private void textBoxCount_TextChanged(object sender, EventArgs e)
+        {
+            CalcSum();
+        }
+
+        private void comboBoxProduct_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            CalcSum();
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxProduct.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите изделие", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Создание заказа");
+            try
+            {
+                var operationResult = _logicOrder.CreateOrder(new OrderBindingModel
+                {
+                    ProductID = Convert.ToInt32(comboBoxProduct.SelectedValue),
+                    Count = Convert.ToInt32(textBoxCount.Text),
+                    Sum = Convert.ToDouble(textBoxSum.Text),
+                    
+                });
+                if (!operationResult) throw new Exception("Ошибка при создании заказа. Дополнительная информация в логах.");
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания заказа");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormCreateOrder_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Загрузка Снэков");
+            try
+            {
+                var list = _logicSnack.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxProduct.DisplayMember = "ProductName";
+                    comboBoxProduct.ValueMember = "ID";
+                    comboBoxProduct.DataSource = list;
+                    comboBoxProduct.SelectedItem = null;
+                }
+            }
+            catch (Exception ex) {
+                _logger.LogError(ex, "Ошибка загрузки списка снэков");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Diner/DinerView/FormCreateOrder.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Diner/DinerView/FormFood.Designer.cs

@@ -0,0 +1,118 @@
+namespace DinerView
+{
+    partial class FormFood
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelPrice = new Label();
+            textBoxName = new TextBox();
+            textBoxPrice = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(12, 9);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(62, 15);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelPrice
+            // 
+            labelPrice.AutoSize = true;
+            labelPrice.Location = new Point(12, 38);
+            labelPrice.Name = "labelPrice";
+            labelPrice.Size = new Size(38, 15);
+            labelPrice.TabIndex = 1;
+            labelPrice.Text = "Цена:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(77, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(305, 23);
+            textBoxName.TabIndex = 2;
+            // 
+            // textBoxPrice
+            // 
+            textBoxPrice.Location = new Point(77, 38);
+            textBoxPrice.Name = "textBoxPrice";
+            textBoxPrice.Size = new Size(305, 23);
+            textBoxPrice.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(307, 67);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(226, 67);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 5;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // FormFood
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(394, 101);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxPrice);
+            Controls.Add(textBoxName);
+            Controls.Add(labelPrice);
+            Controls.Add(labelName);
+            Name = "FormFood";
+            Text = "Продукт питания";
+            Load += FormComponent_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxName;
+        private TextBox textBoxPrice;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

Diner/DinerView/FormFood.cs

@@ -0,0 +1,89 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormFood : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IFoodLogic _logic;
+        private int? _ID;
+        public int ID { set { _ID = value; } }
+
+        public FormFood(ILogger<FormFood> logger, IFoodLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormComponent_Load(object sender, EventArgs e)
+        {
+            if (_ID.HasValue)
+            {
+                try
+                {
+                    _logger.LogInformation("Получение продукта");
+                    var view = _logic.ReadElement(new FoodSearchModel { ID = _ID.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ComponentName;
+                        textBoxPrice.Text = view.Price.ToString();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка получения продукта");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение продукта");
+            try
+            {
+                var model = new FoodBindingModel
+                {
+                    ID = _ID ?? 0,
+                    ComponentName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxPrice.Text)
+                };
+                var operationResult = _ID.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                    throw new Exception("Ошибка при сохранении. Дополнителльная информация в логах.");
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка при сохронении продукта");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();        
+        }
+    }
+}

Diner/DinerView/FormFood.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Diner/DinerView/FormFoods.Designer.cs

@@ -0,0 +1,122 @@
+namespace DinerView
+{
+    partial class FormFoods
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonAdd = new Button();
+            buttonChange = new Button();
+            buttonRemove = new Button();
+            buttonUpdate = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridView.BorderStyle = BorderStyle.None;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(563, 450);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(578, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(219, 41);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // buttonChange
+            // 
+            buttonChange.Location = new Point(578, 59);
+            buttonChange.Name = "buttonChange";
+            buttonChange.Size = new Size(219, 41);
+            buttonChange.TabIndex = 2;
+            buttonChange.Text = "Изменить";
+            buttonChange.UseVisualStyleBackColor = true;
+            buttonChange.Click += buttonChange_Click;
+            // 
+            // buttonRemove
+            // 
+            buttonRemove.Location = new Point(578, 106);
+            buttonRemove.Name = "buttonRemove";
+            buttonRemove.Size = new Size(219, 41);
+            buttonRemove.TabIndex = 3;
+            buttonRemove.Text = "Удалить";
+            buttonRemove.UseVisualStyleBackColor = true;
+            buttonRemove.Click += buttonRemove_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(578, 153);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(219, 41);
+            buttonUpdate.TabIndex = 4;
+            buttonUpdate.Text = "Обновить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += buttonUpdate_Click;
+            // 
+            // FormFoods
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackColor = SystemColors.ScrollBar;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonRemove);
+            Controls.Add(buttonChange);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormFoods";
+            Text = "Продукты";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonChange;
+        private Button buttonRemove;
+        private Button buttonUpdate;
+    }
+}

Diner/DinerView/FormFoods.cs

@@ -0,0 +1,104 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormFoods : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IFoodLogic _logic;
+
+        public FormFoods(ILogger<FormFoods> logger, IFoodLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["ID"].Visible = false;
+                    dataGridView.Columns["ComponentName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка продуктов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки продуктов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormFood));
+            if (service is FormFood form) {
+                if (form.ShowDialog() == DialogResult.OK) LoadData();
+            }
+        }
+
+        private void buttonRemove_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ID"].Value);
+                    _logger.LogInformation("Удаление продукта");
+                    try
+                    {
+                        if (!_logic.Delete(new FoodBindingModel { ID = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления продукта");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonChange_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormFood));
+                if (service is FormFood form)
+                {
+                    form.ID = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ID"].Value);
+                    if (form.ShowDialog() == DialogResult.OK) LoadData();
+                }
+            }
+        }
+
+        private void FormComponents_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

Diner/DinerView/FormFoods.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Diner/DinerView/FormMain.Designer.cs

@@ -0,0 +1,180 @@
+namespace DinerView
+{
+    partial class FormMain
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            menuStrip = new MenuStrip();
+            toolStripMenuItemMenu = new ToolStripMenuItem();
+            toolStripMenuItemFoods = new ToolStripMenuItem();
+            toolStripMenuItemSnacks = new ToolStripMenuItem();
+            dataGridView = new DataGridView();
+            buttonCreateOrder = new Button();
+            buttonInWork = new Button();
+            buttonIsReady = new Button();
+            buttonIsDelivery = new Button();
+            buttonUpdateList = new Button();
+            menuStrip.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // menuStrip
+            // 
+            menuStrip.BackColor = SystemColors.Control;
+            menuStrip.Items.AddRange(new ToolStripItem[] { toolStripMenuItemMenu });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(951, 24);
+            menuStrip.TabIndex = 0;
+            menuStrip.Text = "Справочник";
+            // 
+            // toolStripMenuItemMenu
+            // 
+            toolStripMenuItemMenu.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItemFoods, toolStripMenuItemSnacks });
+            toolStripMenuItemMenu.Name = "toolStripMenuItemMenu";
+            toolStripMenuItemMenu.Size = new Size(94, 20);
+            toolStripMenuItemMenu.Text = "Справочники";
+            // 
+            // toolStripMenuItemFoods
+            // 
+            toolStripMenuItemFoods.Name = "toolStripMenuItemFoods";
+            toolStripMenuItemFoods.Size = new Size(180, 22);
+            toolStripMenuItemFoods.Text = "Продукты";
+            toolStripMenuItemFoods.Click += toolStripMenuItemFoods_Click;
+            // 
+            // toolStripMenuItemSnacks
+            // 
+            toolStripMenuItemSnacks.Name = "toolStripMenuItemSnacks";
+            toolStripMenuItemSnacks.Size = new Size(180, 22);
+            toolStripMenuItemSnacks.Text = "Снэки";
+            toolStripMenuItemSnacks.Click += toolStripMenuItemSnacks_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            dataGridView.BackgroundColor = SystemColors.Control;
+            dataGridView.BorderStyle = BorderStyle.None;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 24);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(726, 426);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonCreateOrder
+            // 
+            buttonCreateOrder.Location = new Point(732, 36);
+            buttonCreateOrder.Name = "buttonCreateOrder";
+            buttonCreateOrder.Size = new Size(212, 39);
+            buttonCreateOrder.TabIndex = 2;
+            buttonCreateOrder.Text = "Создать заказ";
+            buttonCreateOrder.UseVisualStyleBackColor = true;
+            buttonCreateOrder.Click += buttonCreateOrder_Click;
+            // 
+            // buttonInWork
+            // 
+            buttonInWork.Location = new Point(732, 81);
+            buttonInWork.Name = "buttonInWork";
+            buttonInWork.Size = new Size(212, 39);
+            buttonInWork.TabIndex = 3;
+            buttonInWork.Text = "Отдать на выполнение";
+            buttonInWork.UseVisualStyleBackColor = true;
+            buttonInWork.Click += buttonInWork_Click;
+            // 
+            // buttonIsReady
+            // 
+            buttonIsReady.Location = new Point(732, 126);
+            buttonIsReady.Name = "buttonIsReady";
+            buttonIsReady.Size = new Size(212, 39);
+            buttonIsReady.TabIndex = 4;
+            buttonIsReady.Text = "Заказ готов";
+            buttonIsReady.UseVisualStyleBackColor = true;
+            buttonIsReady.Click += buttonIsReady_Click;
+            // 
+            // buttonIsDelivery
+            // 
+            buttonIsDelivery.Location = new Point(732, 171);
+            buttonIsDelivery.Name = "buttonIsDelivery";
+            buttonIsDelivery.Size = new Size(212, 39);
+            buttonIsDelivery.TabIndex = 5;
+            buttonIsDelivery.Text = "Заказ выдан";
+            buttonIsDelivery.UseVisualStyleBackColor = true;
+            buttonIsDelivery.Click += buttonIsDelivery_Click;
+            // 
+            // buttonUpdateList
+            // 
+            buttonUpdateList.Location = new Point(732, 216);
+            buttonUpdateList.Name = "buttonUpdateList";
+            buttonUpdateList.Size = new Size(212, 39);
+            buttonUpdateList.TabIndex = 6;
+            buttonUpdateList.Text = "Обновить список";
+            buttonUpdateList.UseVisualStyleBackColor = true;
+            buttonUpdateList.Click += buttonUpdateList_Click;
+            // 
+            // FormMain
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackColor = SystemColors.ScrollBar;
+            ClientSize = new Size(951, 450);
+            Controls.Add(buttonUpdateList);
+            Controls.Add(buttonIsDelivery);
+            Controls.Add(buttonIsReady);
+            Controls.Add(buttonInWork);
+            Controls.Add(buttonCreateOrder);
+            Controls.Add(dataGridView);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
+            Name = "FormMain";
+            Text = "Заказы";
+            Load += FormMain_Load;
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem toolStripMenuItemMenu;
+        private DataGridView dataGridView;
+        private ToolStripMenuItem toolStripMenuItemFoods;
+        private ToolStripMenuItem toolStripMenuItemSnacks;
+        private Button buttonCreateOrder;
+        private Button buttonInWork;
+        private Button buttonIsReady;
+        private Button buttonIsDelivery;
+        private Button buttonUpdateList;
+    }
+}

Diner/DinerView/FormMain.cs

@@ -0,0 +1,157 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormMain : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderLogic _orderLogic;
+        public FormMain(ILogger<FormMain> logger, IOrderLogic orderLogic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _orderLogic = orderLogic;
+        }
+
+        private void FormMain_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка заказов");
+            try
+            {
+                var list = _orderLogic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["ProductID"].Visible = false;
+                    dataGridView.Columns["Sum"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка заказов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки заказов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void toolStripMenuItemFoods_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormFoods));
+            if (service is FormFoods form) {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+
+        private void toolStripMenuItemSnacks_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSnacks));
+            if (service is FormSnacks form) {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+
+        private void buttonCreateOrder_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormCreateOrder));
+            if (service is FormCreateOrder form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+
+        private void buttonInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                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 { ID = id });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка передачи заказа в работу");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonIsReady_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'Готов'", id);
+                try
+                {
+                    var operationResult = _orderLogic.FinishOrder(new OrderBindingModel { ID = id });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о готовности заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonIsDelivery_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'Выдан'", id);
+                try
+                {
+                    var operationResult = _orderLogic.DeliveryOrder(new OrderBindingModel { ID = id });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    _logger.LogInformation("Заказ №{id} выдан", id);
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о выдачи заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonUpdateList_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

Diner/DinerView/FormMain.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="menuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

Diner/DinerView/FormSnack.Designer.cs

@@ -0,0 +1,242 @@
+namespace DinerView
+{
+    partial class FormSnack
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelPrice = new Label();
+            textBoxName = new TextBox();
+            textBoxPrice = new TextBox();
+            groupBoxFoods = new GroupBox();
+            buttonUpdate = new Button();
+            buttonRemove = new Button();
+            buttonChange = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            ColumnID = new DataGridViewTextBoxColumn();
+            ColumnFood = new DataGridViewTextBoxColumn();
+            ColumnCount = new DataGridViewTextBoxColumn();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            groupBoxFoods.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(12, 9);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(62, 15);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelPrice
+            // 
+            labelPrice.AutoSize = true;
+            labelPrice.Location = new Point(12, 36);
+            labelPrice.Name = "labelPrice";
+            labelPrice.Size = new Size(70, 15);
+            labelPrice.TabIndex = 1;
+            labelPrice.Text = "Стоимость:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(85, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(367, 23);
+            textBoxName.TabIndex = 2;
+            // 
+            // textBoxPrice
+            // 
+            textBoxPrice.Enabled = false;
+            textBoxPrice.Location = new Point(85, 36);
+            textBoxPrice.Name = "textBoxPrice";
+            textBoxPrice.Size = new Size(367, 23);
+            textBoxPrice.TabIndex = 3;
+            // 
+            // groupBoxFoods
+            // 
+            groupBoxFoods.BackColor = SystemColors.ControlDark;
+            groupBoxFoods.Controls.Add(buttonUpdate);
+            groupBoxFoods.Controls.Add(buttonRemove);
+            groupBoxFoods.Controls.Add(buttonChange);
+            groupBoxFoods.Controls.Add(buttonAdd);
+            groupBoxFoods.Controls.Add(dataGridView);
+            groupBoxFoods.ForeColor = SystemColors.Control;
+            groupBoxFoods.Location = new Point(12, 65);
+            groupBoxFoods.Name = "groupBoxFoods";
+            groupBoxFoods.Size = new Size(657, 373);
+            groupBoxFoods.TabIndex = 4;
+            groupBoxFoods.TabStop = false;
+            groupBoxFoods.Text = "Используемые продукты";
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.ForeColor = Color.Black;
+            buttonUpdate.Location = new Point(446, 148);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(205, 37);
+            buttonUpdate.TabIndex = 4;
+            buttonUpdate.Text = "Обновить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += buttonUpdate_Click;
+            // 
+            // buttonRemove
+            // 
+            buttonRemove.ForeColor = Color.Black;
+            buttonRemove.Location = new Point(446, 105);
+            buttonRemove.Name = "buttonRemove";
+            buttonRemove.Size = new Size(205, 37);
+            buttonRemove.TabIndex = 3;
+            buttonRemove.Text = "Удалить";
+            buttonRemove.UseVisualStyleBackColor = true;
+            buttonRemove.Click += buttonRemove_Click;
+            // 
+            // buttonChange
+            // 
+            buttonChange.ForeColor = Color.Black;
+            buttonChange.Location = new Point(446, 62);
+            buttonChange.Name = "buttonChange";
+            buttonChange.Size = new Size(205, 37);
+            buttonChange.TabIndex = 2;
+            buttonChange.Text = "Изменить";
+            buttonChange.UseVisualStyleBackColor = true;
+            buttonChange.Click += buttonChange_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.ForeColor = Color.Black;
+            buttonAdd.Location = new Point(446, 19);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(205, 37);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonFace;
+            dataGridView.BorderStyle = BorderStyle.None;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ColumnID, ColumnFood, ColumnCount });
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(3, 19);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.DefaultCellStyle.ForeColor = Color.Black;
+            dataGridView.RowTemplate.Height = 22;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(437, 351);
+            dataGridView.TabIndex = 0;
+            // 
+            // ColumnID
+            // 
+            ColumnID.HeaderText = "ID";
+            ColumnID.Name = "ColumnID";
+            ColumnID.ReadOnly = true;
+            ColumnID.Visible = false;
+            // 
+            // ColumnFood
+            // 
+            ColumnFood.HeaderText = "Продукт";
+            ColumnFood.Name = "ColumnFood";
+            ColumnFood.ReadOnly = true;
+            ColumnFood.Width = 337;
+            // 
+            // ColumnCount
+            // 
+            ColumnCount.HeaderText = "Количество";
+            ColumnCount.Name = "ColumnCount";
+            ColumnCount.ReadOnly = true;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(587, 30);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(82, 27);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(499, 30);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(82, 27);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // FormSnack
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(681, 450);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(groupBoxFoods);
+            Controls.Add(textBoxPrice);
+            Controls.Add(textBoxName);
+            Controls.Add(labelPrice);
+            Controls.Add(labelName);
+            Name = "FormSnack";
+            Text = "Снэки";
+            Load += FormSnack_Load;
+            groupBoxFoods.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxName;
+        private TextBox textBoxPrice;
+        private GroupBox groupBoxFoods;
+        private DataGridView dataGridView;
+        private Button buttonChange;
+        private Button buttonAdd;
+        private Button buttonUpdate;
+        private Button buttonRemove;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private DataGridViewTextBoxColumn ColumnID;
+        private DataGridViewTextBoxColumn ColumnFood;
+        private DataGridViewTextBoxColumn ColumnCount;
+    }
+}

Diner/DinerView/FormSnack.cs

@@ -0,0 +1,203 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using DinerDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Security.Cryptography.Xml;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormSnack : Form
+    {
+        private readonly ILogger _logger;
+        private readonly ISnackLogic _logic;
+        private int? _ID;
+        private Dictionary<int, (IFoodModel, int)> _productComponents;
+        public int ID { set { _ID = value; } }
+        public FormSnack(ILogger<FormSnack> logger, ISnackLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _productComponents = new Dictionary<int, (IFoodModel, int)>();
+        }
+
+        private void FormSnack_Load(object sender, EventArgs e)
+        {
+            if (_ID.HasValue)
+            {
+                _logger.LogInformation("Загрузка снэка");
+                try
+                {
+                    var view = _logic.ReadElement(new SnackSearchModel { ID = _ID.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ProductName;
+                        textBoxPrice.Text = view.Price.ToString();
+                        _productComponents = view.ProductComponents ?? new Dictionary<int, (IFoodModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки продуктов снэка");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка продукта снэка");
+            try
+            {
+                if (_productComponents != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var elem in _productComponents)
+                    {
+                        dataGridView.Rows.Add(new object[] { elem.Key, elem.Value.Item1.ComponentName, elem.Value.Item2 });
+                    }
+                    textBoxPrice.Text = CalcPrice().ToString();
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки продукта снэка");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private double CalcPrice()
+        {
+            double price = 0;
+            foreach (var elem in _productComponents)
+                price += ((elem.Value.Item1?.Price ?? 0) * elem.Value.Item2);
+            return Math.Round(price * 1.1, 2);
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSnackFood));
+            if (service is FormSnackFood form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.foodModel == null) return;
+                    _logger.LogInformation("Добавление нового снэка: {ComponentName} - {Count}", form.foodModel.ComponentName, form.Count);
+                    if (_productComponents.ContainsKey(form.ID))
+                    {
+                        _productComponents[form.ID] = (form.foodModel, form.Count);
+                    }
+                    else
+                    {
+                        _productComponents.Add(form.ID, (form.foodModel, form.Count));
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonChange_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormSnackFood));
+                if (service is FormSnackFood form)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
+                    form.ID = id;
+                    form.Count = _productComponents[id].Item2;
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.foodModel == null) return;
+                        _logger.LogInformation("Изменение снэка: {ComponentName} - {Count}", form.foodModel.ComponentName, form.Count);
+                        _productComponents[form.ID] = (form.foodModel, form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void buttonRemove_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    try
+                    {
+                        _logger.LogInformation("Удаление снэка: {ComponentName}", dataGridView.SelectedRows[0].Cells[1].Value);
+                        _productComponents?.Remove(Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value));
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxPrice.Text))
+            {
+                MessageBox.Show("Заполните цену", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (_productComponents == null || _productComponents.Count == 0)
+            {
+                MessageBox.Show("Заполните компоненты", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение изделия");
+            try
+            {
+                var model = new SnackBindingModel
+                {
+                    ID = _ID ?? 0,
+                    ProductName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxPrice.Text),
+                    ProductComponents = _productComponents
+                };
+                var operationResult = _ID.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка сохранения изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

Diner/DinerView/FormSnack.resx

@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="ColumnID.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnFood.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnCount.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

Diner/DinerView/FormSnackFood.Designer.cs

@@ -0,0 +1,120 @@
+namespace DinerView
+{
+    partial class FormSnackFood
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelComponent = new Label();
+            labelCount = new Label();
+            comboBoxComponent = new ComboBox();
+            textBoxCount = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // labelComponent
+            // 
+            labelComponent.AutoSize = true;
+            labelComponent.Location = new Point(12, 9);
+            labelComponent.Name = "labelComponent";
+            labelComponent.Size = new Size(28, 15);
+            labelComponent.TabIndex = 0;
+            labelComponent.Text = "Еда:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 35);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(77, 15);
+            labelCount.TabIndex = 1;
+            labelCount.Text = "Количесиво:";
+            // 
+            // comboBoxComponent
+            // 
+            comboBoxComponent.BackColor = SystemColors.ButtonShadow;
+            comboBoxComponent.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(91, 6);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(291, 23);
+            comboBoxComponent.TabIndex = 2;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(91, 35);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(291, 23);
+            textBoxCount.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(307, 64);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(226, 66);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 5;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // FormSnackFood
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(394, 101);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxComponent);
+            Controls.Add(labelCount);
+            Controls.Add(labelComponent);
+            Name = "FormSnackFood";
+            Text = "Продукты для снэков";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelComponent;
+        private Label labelCount;
+        private ComboBox comboBoxComponent;
+        private TextBox textBoxCount;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

Diner/DinerView/FormSnackFood.cs

@@ -0,0 +1,89 @@
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.ViewModels;
+using DinerDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormSnackFood : Form
+    {
+        private readonly List<FoodViewModel>? _list;
+        public int ID
+        {
+            get
+            {
+                return Convert.ToInt32(comboBoxComponent.SelectedValue);
+            }
+            set
+            {
+                comboBoxComponent.SelectedValue = value;
+            }
+        }
+        public IFoodModel? foodModel
+        {
+            get
+            {
+                if (_list == null) return null;
+                foreach (var elem in _list)
+                {
+                    if (elem.ID == ID) return elem;
+                }
+                return null;
+            }
+        }
+        public int Count
+        {
+            get
+            {
+                return Convert.ToInt32(textBoxCount.Text);
+            }
+            set
+            {
+                textBoxCount.Text = value.ToString();
+            }
+        }
+
+        public FormSnackFood(IFoodLogic logic)
+        {
+            InitializeComponent();
+            _list = logic.ReadList(null);
+            if (_list != null)
+            {
+                comboBoxComponent.DisplayMember = "ComponentName";
+                comboBoxComponent.ValueMember = "ID";
+                comboBoxComponent.DataSource = _list;
+                comboBoxComponent.SelectedItem = null;
+            }
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле количесвто", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxComponent.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите продукт", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

Diner/DinerView/FormSnackFood.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Diner/DinerView/FormSnacks.Designer.cs

@@ -0,0 +1,122 @@
+namespace DinerView
+{
+    partial class FormSnacks
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            buttonUpdate = new Button();
+            buttonRemove = new Button();
+            buttonChange = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(578, 153);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(219, 41);
+            buttonUpdate.TabIndex = 9;
+            buttonUpdate.Text = "Обновить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += buttonUpdate_Click;
+            // 
+            // buttonRemove
+            // 
+            buttonRemove.Location = new Point(578, 106);
+            buttonRemove.Name = "buttonRemove";
+            buttonRemove.Size = new Size(219, 41);
+            buttonRemove.TabIndex = 8;
+            buttonRemove.Text = "Удалить";
+            buttonRemove.UseVisualStyleBackColor = true;
+            buttonRemove.Click += buttonRemove_Click;
+            // 
+            // buttonChange
+            // 
+            buttonChange.Location = new Point(578, 59);
+            buttonChange.Name = "buttonChange";
+            buttonChange.Size = new Size(219, 41);
+            buttonChange.TabIndex = 7;
+            buttonChange.Text = "Изменить";
+            buttonChange.UseVisualStyleBackColor = true;
+            buttonChange.Click += buttonChange_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(578, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(219, 41);
+            buttonAdd.TabIndex = 6;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridView.BorderStyle = BorderStyle.None;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(563, 450);
+            dataGridView.TabIndex = 5;
+            // 
+            // FormSnacks
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackColor = SystemColors.ScrollBar;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonRemove);
+            Controls.Add(buttonChange);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormSnacks";
+            Text = "Снэки";
+            Load += FormSnacks_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Button buttonUpdate;
+        private Button buttonRemove;
+        private Button buttonChange;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

Diner/DinerView/FormSnacks.cs

@@ -0,0 +1,103 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DinerView
+{
+    public partial class FormSnacks : Form
+    {
+        private readonly ILogger _logger;
+        private readonly ISnackLogic _logic;
+        public FormSnacks(ILogger<FormSnacks> logger, ISnackLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["ID"].Visible = false;
+                    dataGridView.Columns["ProductComponents"].Visible = false;
+                    dataGridView.Columns["ProductName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка снэков");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки продуктов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSnack));
+            if (service is FormSnack form) {
+                if (form.ShowDialog() == DialogResult.OK) LoadData();
+            }
+        }
+
+        private void buttonRemove_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ID"].Value);
+                    _logger.LogInformation("Удаление снэка");
+                    try
+                    {
+                        if (!_logic.Delete(new SnackBindingModel { ID = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления снэка");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void buttonChange_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormSnack));
+                if (service is FormSnack form)
+                {
+                    form.ID = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ID"].Value);
+                    if (form.ShowDialog() == DialogResult.OK) LoadData();
+                }
+            }
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void FormSnacks_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

Diner/DinerView/FormSnacks.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Diner/DinerView/Nlog.config

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+	<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        autoReload="true" internalLogLevel="Info">
+
+		<targets>
+			<target xsi:type="File" name="tofile" fileName="log-${shortdate}.log" />
+		</targets>
+
+		<rules>
+			<logger name="*" minlevel="Debug" writeTo="tofile" />
+		</rules>
+	</nlog>
+</configuration>

Diner/DinerView/Program.cs

@@ -1,7 +1,17 @@
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.StoragesContracts;
+using DinerDataBaseImplement.Implements;
+using DineryBusinessLogic.BusinessLogic;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+
 namespace DinerView
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         ///  The main entry point for the application.
         /// </summary>
@@ -11,7 +21,34 @@ namespace DinerView
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            var services = new ServiceCollection();
+            ConfigureServices(services);
+            _serviceProvider = services.BuildServiceProvider();
+            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
+        }
+
+        private static void ConfigureServices(ServiceCollection services)
+        {
+            services.AddLogging(option =>
+            {
+                option.SetMinimumLevel(LogLevel.Information);
+                option.AddNLog("nlog.config");
+            });
+            services.AddTransient<IFoodStorage, FoodStorage>();
+            services.AddTransient<IOrderStorage, OrderStorage>();
+            services.AddTransient<ISnackStorage, SnackStorage>();
+
+            services.AddTransient<IFoodLogic, FoodLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<ISnackLogic, SnackLogic>();
+
+            services.AddTransient<FormMain>();
+            services.AddTransient<FormFood>();
+            services.AddTransient<FormFoods>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormSnack>();
+            services.AddTransient<FormSnackFood>();
+            services.AddTransient<FormSnacks>();
         }
     }
 }

Diner/DinerView/Properties/Resources.Designer.cs

@@ -0,0 +1,63 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Этот код создан программой.
+//     Исполняемая версия:4.0.30319.42000
+//
+//     Изменения в этом файле могут привести к неправильной работе и будут потеряны в случае
+//     повторной генерации кода.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace DinerView.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   Класс ресурса со строгой типизацией для поиска локализованных строк и т.д.
+    /// </summary>
+    // Этот класс создан автоматически классом StronglyTypedResourceBuilder
+    // с помощью такого средства, как ResGen или Visual Studio.
+    // Чтобы добавить или удалить член, измените файл .ResX и снова запустите ResGen
+    // с параметром /str или перестройте свой проект VS.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Возвращает кэшированный экземпляр ResourceManager, использованный этим классом.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DinerView.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Перезаписывает свойство CurrentUICulture текущего потока для всех
+        ///   обращений к ресурсу с помощью этого класса ресурса со строгой типизацией.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+    }
+}

Diner/DineryBusinessLogic/BusinessLogic/FoodLogic.cs

@@ -0,0 +1,96 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DineryBusinessLogic.BusinessLogic
+{
+    public class FoodLogic : IFoodLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IFoodStorage _componentStorage;
+
+        public FoodLogic(ILogger<FoodLogic> logger, IFoodStorage componentStorage) { 
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+
+        public bool Create(FoodBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null) {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(FoodBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. ID:{ID}", model.ID);
+            if (_componentStorage.Delete(model) == null) {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public FoodViewModel? ReadElement(FoodSearchModel model)
+        {
+            if (model == null) throw new ArgumentNullException(nameof(model));
+            _logger.LogInformation("ReadElement. ComponentName:{ComponentName}. ID:{ID}", model.ComponentName, model.ID);
+            var element = _componentStorage.GetElement(model);
+            if (element == null) {
+                _logger.LogWarning("ReadElement. element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. ID:{ID}", element.ID);
+            return element;
+        }
+
+        public List<FoodViewModel>? ReadList(FoodSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ComponentName:{ComponentName}. ID:{ID}", model?.ComponentName, model?.ID);
+            var list = model == null ? _componentStorage.GetFullList() : _componentStorage.GetFilteredList(model);
+            if (list == null) {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(FoodBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null) {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        
+        private void CheckModel(FoodBindingModel model, bool withParams = true) { 
+            if (model == null) throw new ArgumentNullException(nameof(model));
+            if (!withParams) return;
+            if (string.IsNullOrEmpty(model.ComponentName)) 
+                throw new ArgumentNullException("Нет названия компонента", nameof(model.ComponentName));
+            if (model.Price <= 0)
+                throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Price));
+            _logger.LogInformation("Component. ComponentName:{ComponentName}. Price:{Price}. ID:{ID}",
+                                    model.ComponentName, model.Price, model.ID);
+            var element = _componentStorage.GetElement(new FoodSearchModel { ComponentName = model.ComponentName });
+            if (element != null && element.ID != model.ID)
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+        }
+    }
+}

Diner/DineryBusinessLogic/BusinessLogic/OrderLogic.cs

@@ -0,0 +1,101 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using DinerDataModels.Enums;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DineryBusinessLogic.BusinessLogic
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage) { 
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null) {
+                model.Status = OrderStatus.Неизвестен;
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выдан);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Готов);
+        }
+
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ID:{ID}", model?.ID);
+            var list = model == null? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+            if (list == null) {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выполняется);
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true) { 
+            if (model == null) throw new ArgumentNullException(nameof(model));
+            if (!withParams) return;
+            if (string.IsNullOrEmpty((model.ID).ToString()))
+                throw new ArgumentNullException("Нет ID заказа", nameof(model.ID));
+            if (model.Sum <= 0)
+                throw new ArgumentNullException("Цена заказа должна быть больше 0", nameof(model.Sum));
+            _logger.LogInformation("Order. ProductID:{ProductID}. Count:{Count}. Sum:{Sum}. Status:{Status}. " +
+                                    "DateCreate:{DateCreate}. DateImplement:{DateImplement}. ID:{ID}",
+                                    model.ProductID, model.Count, model.Sum, model.Status, model.DateCreate, model.DateImplement, model.ID);
+        }
+        private bool StatusUpdate(OrderBindingModel model, OrderStatus newOrderStatus) {
+            CheckModel(model, false);
+            var viewModel = _orderStorage.GetElement(new OrderSearchModel { ID = model.ID });
+            if (viewModel == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (viewModel.Status + 1 != newOrderStatus) {
+                _logger.LogWarning("Status update to " + newOrderStatus.ToString() + " operation failed.");
+                return false;
+            }
+            model.Status = newOrderStatus;
+            if (model.Status == OrderStatus.Готов) {
+                model.DateImplement = DateTime.Now;
+            }
+            else {
+                model.DateImplement = viewModel.DateImplement;
+            }
+            if (_orderStorage.Update(model) == null) {
+                _logger.LogWarning("Update operarion failed");
+                return false;
+            }
+            return true;
+        }
+    }
+}

Diner/DineryBusinessLogic/BusinessLogic/SnackLogic.cs

@@ -0,0 +1,95 @@
+using DinerContracts.BindingModels;
+using DinerContracts.BusinessLogicsContacts;
+using DinerContracts.SearchModels;
+using DinerContracts.StoragesContracts;
+using DinerContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DineryBusinessLogic.BusinessLogic
+{
+    public class SnackLogic : ISnackLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ISnackStorage _productStorage;
+
+        public SnackLogic(ILogger<SnackLogic> logger, ISnackStorage productStorage) { 
+            _logger = logger;
+            _productStorage = productStorage;
+        }
+
+        public bool Create(SnackBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Insert(model) == null) {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(SnackBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. ID:{ID}", model.ID);
+            if (_productStorage.Delete(model) == null) {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public SnackViewModel? ReadElement(SnackSearchModel model)
+        {
+            if (model == null) throw new ArgumentNullException(nameof(model));
+            _logger.LogInformation("ReadElement. ProductName:{ProductName}. ID:{ID}", model.ProductName, model.ID);
+            var element = _productStorage.GetElement(model);
+            if (element == null) {
+                _logger.LogWarning("ReadElement. elementn not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. ID:{ID}", element.ID);
+            return element;
+        }
+
+        public List<SnackViewModel>? ReadList(SnackSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ProductName:{ProductName}. ID:{ID}", model?.ProductName, model?.ID);
+            var list = model == null ? _productStorage.GetFullList() : _productStorage.GetFilteredList(model);
+            if (list == null) {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(SnackBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Update(model) == null) {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        
+        private void CheckModel(SnackBindingModel model, bool withParams = true) { 
+            if (model == null) throw new ArgumentNullException(nameof(model));
+            if (!withParams) return;
+            if (string.IsNullOrEmpty(model.ProductName))
+                throw new ArgumentNullException("Нет названия продукта", nameof(model.ProductName));
+            if (model.Price <= 0)
+                throw new ArgumentNullException("Цена продукта должна быть больше 0", nameof(model.Price));
+            _logger.LogInformation("Product. ProductName:{ProductName}. Price:{Price}. ID:{ID}",
+                                    model.ProductName, model.Price, model.ID);
+            var element = _productStorage.GetElement(new SnackSearchModel { ProductName = model.ProductName });
+            if (element != null && element.ID != model.ID)
+                throw new InvalidOperationException("Продукт с таким названием уже есть");
+        }
+    }
+}

Diner/DineryBusinessLogic/DineryBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DinerContracts\DinerContracts.csproj" />
+  </ItemGroup>
+
+</Project>