дело сделано

ComputersShop/ComputerShopFileImplements/ComputersShopFileImplements.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputerShopFileImplements/DataFileSingleton.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopFileImplements.Models;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplements
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        public readonly string ComponentFileName = "Component.xml";
+        public readonly string OrderFileName = "Order.xml";
+        public readonly string ComputerFileName = "Computer.xml";
+        public readonly string ShopFileName = "Shop.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Computer> Computers { get; private set; }
+        public List<Shop> Shops { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName,
+            "Components", x => x.GetXElement);
+        public void SaveComputers() => SaveData(Computers, ComputerFileName,
+            "Computers", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName,
+            "Orders", x => x.GetXElement);
+        public void SaveShops() => SaveData(Shops, ShopFileName,
+            "Shops", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Computers = LoadData(ComputerFileName, "Computer", x => Computer.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+            Shops = LoadData(ShopFileName, "Shop", x => Shop.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename,
+            string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

ComputersShop/ComputerShopFileImplements/Implements/ComponentStorage.cs

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+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplements.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplements.Implements
+{
+    public class ComponentStorage: IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComponentViewModel> GetFiltredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.Components
+                .Where(x => x.ComponentName.Contains(model.ComponentName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (!string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Components
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && 
+                x.ComponentName == model.ComponentName) || (model.Id.HasValue &&
+                x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputerShopFileImplements/Implements/ComputerStorage.cs

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+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopFileImplements.Models;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplements.Implements
+{
+    public class ComputerStorage : IComputerStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComputerStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComputerViewModel> GetFullList()
+        {
+            return source.Computers.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComputerViewModel> GetFiltredList(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                return new();
+            }
+            return source.Computers
+                .Where(x => x.ComputerName.Contains(model.ComputerName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ComputerViewModel? GetElement(ComputerSearchModel model)
+        {
+            if (!string.IsNullOrEmpty(model.ComputerName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Computers
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComputerName) &&
+                x.ComputerName == model.ComputerName) || (model.Id.HasValue &&
+                x.Id == model.Id))?.GetViewModel;
+        }
+        public ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            model.Id = source.Computers.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComputer = Computer.Create(model);
+            if (newComputer == null)
+            {
+                return null;
+            }
+            source.Computers.Add(newComputer);
+            source.SaveComputers();
+            return newComputer.GetViewModel;
+        }
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            var computer = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (computer == null)
+            {
+                return null;
+            }
+            computer.Update(model);
+            source.SaveComputers();
+            return computer.GetViewModel;
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            var element = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Computers.Remove(element);
+                source.SaveComputers();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputerShopFileImplements/Implements/OrderStorage.cs

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+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplements.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplements.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+        public List<OrderViewModel> GetFiltredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return GetViewModel(source.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id));
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return GetViewModel(newOrder);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            source.Orders.Remove(order);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var computer = source.Computers.FirstOrDefault(x => x.Id == order.ComputerId);
+            viewModel.ComputerName = computer?.ComputerName;
+            return viewModel;
+        }
+    }
+}

ComputersShop/ComputerShopFileImplements/Implements/ShopStorage.cs

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+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using ComputersShopFileImplements.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplements.Implements
+{
+    public class ShopStorage: IShopStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ShopStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ShopViewModel> GetFullList()
+        {
+            return source.Shops.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ShopViewModel> GetFiltredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            return source.Shops
+                .Where(x => x.ShopName.Contains(model.Name))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (!string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Shops
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Name) &&
+                x.ShopName == model.Name) || (model.Id.HasValue &&
+                x.Id == model.Id))?.GetViewModel;
+        }
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = source.Shops.Count > 0 ? source.Shops.Max(x => x.Id) + 1 : 1;
+            var newShop = Shop.Create(model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            source.Shops.Add(newShop);
+            source.SaveComputers();
+            return newShop.GetViewModel;
+        }
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            shop.Update(model);
+            source.SaveComputers();
+            return shop.GetViewModel;
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            var element = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Shops.Remove(element);
+                source.SaveComputers();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+        public bool CheckAvailability(int computerId, int count)
+        {
+            int store = source.Shops.Select(x => x.ShopComputers.Select(y => (y.Value.Item1.Id == computerId ? y.Value.Item2 : 0)).Sum()).Sum();
+            return store >= count;
+        }
+        public bool SellComputers(IComputerModel model, int count)
+        {
+            var computer = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+
+            if (computer == null || !CheckAvailability(model.Id, count))
+            {
+                return false;
+            }
+
+            for (int i = 0; i < source.Shops.Count; i++)
+            {
+                var shop = source.Shops[i];
+                var computers = shop.ShopComputers;
+                foreach (var comp in computers.Where(x => x.Value.Item1.Id == computer.Id))
+                {
+                    var selling = Math.Min(comp.Value.Item2, count);
+                    computers[comp.Value.Item1.Id] = (comp.Value.Item1, comp.Value.Item2 - selling);
+
+                    count -= selling;
+
+                    if (count <= 0)
+                    {
+                        break;
+                    }
+                }
+                shop.Update(new ShopBindingModel
+                {
+                    Id = model.Id,
+                    ShopName = shop.ShopName,
+                    Address = shop.Address,
+                    MaxCount = shop.MaxCount,
+                    DateOpen = shop.DateOpen,
+                    ShopComputers = computers
+                });
+            }
+            source.SaveShops();
+            return true;
+        }
+    }
+}

ComputersShop/ComputerShopFileImplements/Models/Component.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplements.Models
+{
+    public class Component: IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost,
+            };
+        }
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost,
+        };
+        public XElement GetXElement => new("Component",
+            new XAttribute("Id", Id),
+            new XElement("ComponentName", ComponentName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}

ComputersShop/ComputerShopFileImplements/Models/Computer.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplements.Models
+{
+    public class Computer: IComputerModel
+    {
+        public int Id { get; private set; }
+        public string ComputerName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IComponentModel, int)>? _computerComponents = null;
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents
+        {
+            get
+            {
+                if (_computerComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _computerComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _computerComponents;
+            }
+        }
+        public static Computer? Create(ComputerBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = model.Id,
+                ComputerName = model.ComputerName,
+                Price = model.Price,
+                Components = model.ComputerComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Computer? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComputerName = element.Element("ComputerName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components =
+                element.Element("ComputerComponents")!.Elements("ComputerComponent")
+                .ToDictionary(x =>
+                Convert.ToInt32(x.Element("Key")?.Value), x =>
+                Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ComputerBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComputerName = model.ComputerName;
+            Price = model.Price;
+            Components = model.ComputerComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _computerComponents = null;
+        }
+        public ComputerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerName = ComputerName,
+            Price = Price,
+            ComputerComponents = ComputerComponents
+        };
+        public XElement GetXElement => new("Computer",
+            new XAttribute("Id", Id),
+            new XElement("ComputerName", ComputerName),
+            new XElement("Price", Price.ToString()),
+            new XElement("ComputerComponents", Components.Select(x =>
+            new XElement("ComputerComponent", new XElement("Key", x.Key),
+            new XElement("Value", x.Value))).ToArray()));
+    }
+}

ComputersShop/ComputerShopFileImplements/Models/Order.cs

@@ -0,0 +1,95 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplements.Models
+{
+    public class Order: IOrderModel
+    {
+        public int Id { get; private set; }
+        public int ComputerId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        public DateTime? DateImplement { get; private set;}
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                ComputerId = model.ComputerId,
+                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;
+            }
+            var id = Convert.ToInt32(element.Attribute("Id")!.Value);
+            var computerId = Convert.ToInt32(element.Element("ComputerId")!.Value);
+            var sum = Convert.ToDouble(element.Element("Sum")!.Value);
+            var count = Convert.ToInt32(element.Element("Count")!.Value);
+            var status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value);
+            var dateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value);
+            var dateImplement = DateTime.Now;
+            
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComputerId = Convert.ToInt32(element.Element("ComputerId")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.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,
+            ComputerId = ComputerId,
+            Sum = Sum,
+            Count = Count,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new(
+            "Order",
+            new XAttribute("Id", Id),
+            new XElement("ComputerId", ComputerId.ToString()),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString())
+            );
+    }
+}

ComputersShop/ComputerShopFileImplements/Models/Shop.cs

@@ -0,0 +1,102 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplements.Models
+{
+    public class Shop: IShopModel
+    {
+        public int Id { get; set; }
+        public string ShopName { get; set;}
+        public string Address { get; set;}
+        public DateTime DateOpen { get; set;}
+        public int MaxCount { get; set;}
+        public Dictionary<int, int> Computers { get; private set; } = new();
+        private Dictionary<int, (IComputerModel, int)>? _shopComputers = null;
+        public Dictionary<int, (IComputerModel, int)> ShopComputers
+        {
+            get
+            {
+                if (_shopComputers == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _shopComputers = Computers.ToDictionary(x => x.Key, y => ((source.Computers.FirstOrDefault(z => z.Id == y.Key) as IComputerModel)!, y.Value));
+                }
+                return _shopComputers;
+            }
+        }
+        public static Shop? Create(ShopBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                MaxCount = model.MaxCount,
+                DateOpen = model.DateOpen,
+                Computers = model.ShopComputers.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Shop? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                MaxCount = Convert.ToInt32(element.Element("MaxCount")!.Value),
+                ShopName = element.Element("ShopName")!.Value,
+                Address = element.Element("Address")!.Value,
+                DateOpen = Convert.ToDateTime(element.Element("DateOpen")!.Value),
+
+                Computers = element.Element("ShopComputers")!.Elements("ShopComputer").ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ShopBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Address = model.Address;
+            MaxCount = model.MaxCount;
+            DateOpen = model.DateOpen;
+            if (model.ShopComputers.Count > 0)
+            {
+                Computers = model.ShopComputers.ToDictionary(x => x.Key, x => x.Value.Item2);
+                _shopComputers = null;
+            }
+        }
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            MaxCount = MaxCount,
+            DateOpen = DateOpen,
+            ShopComputers = ShopComputers
+        };
+        public XElement GetXElement => new("Shop",
+            new XAttribute("Id", Id),
+            new XElement("ShopName", ShopName),
+            new XElement("Address", Address.ToString()),
+            new XElement("MaxCount", MaxCount.ToString()),
+            new XElement("DateOpen", DateOpen.ToString()),
+            new XElement("ShopComputers", Computers.Select(x => new XElement("ShopComputer", new XElement("Key", x.Key),
+            new XElement("Value", x.Value))).ToArray()));
+    }
+}

ComputersShop/ComputersShop.sln

@@ -3,7 +3,17 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.5.33627.172
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputersShop", "ComputersShop\ComputersShop.csproj", "{C3280008-18FB-4481-B3A7-6C8534EDC65C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShop", "ComputersShop\ComputersShop.csproj", "{C3280008-18FB-4481-B3A7-6C8534EDC65C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopDataModels", "ComputersShopDataModels\ComputersShopDataModels.csproj", "{34C63637-6E52-4576-99D5-DA7524F73EA0}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopContracts", "ComputersShopContracts\ComputersShopContracts.csproj", "{1761A1DB-696C-4C00-B05F-FD00E768594B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopBusinessLogic", "ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj", "{93D47C23-DA56-4179-8918-9D70A1012048}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopListImplements", "ComputersShopListImplement\ComputersShopListImplements.csproj", "{8AF31165-C031-42B2-88D4-A1A89EFCDC59}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputersShopFileImplements", "ComputerShopFileImplements\ComputersShopFileImplements.csproj", "{47B30693-D73D-49A1-B41A-740454667ABF}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +25,26 @@ Global
 		{C3280008-18FB-4481-B3A7-6C8534EDC65C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C3280008-18FB-4481-B3A7-6C8534EDC65C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C3280008-18FB-4481-B3A7-6C8534EDC65C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{34C63637-6E52-4576-99D5-DA7524F73EA0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{34C63637-6E52-4576-99D5-DA7524F73EA0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{34C63637-6E52-4576-99D5-DA7524F73EA0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{34C63637-6E52-4576-99D5-DA7524F73EA0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1761A1DB-696C-4C00-B05F-FD00E768594B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1761A1DB-696C-4C00-B05F-FD00E768594B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1761A1DB-696C-4C00-B05F-FD00E768594B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1761A1DB-696C-4C00-B05F-FD00E768594B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{93D47C23-DA56-4179-8918-9D70A1012048}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93D47C23-DA56-4179-8918-9D70A1012048}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93D47C23-DA56-4179-8918-9D70A1012048}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93D47C23-DA56-4179-8918-9D70A1012048}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8AF31165-C031-42B2-88D4-A1A89EFCDC59}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8AF31165-C031-42B2-88D4-A1A89EFCDC59}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8AF31165-C031-42B2-88D4-A1A89EFCDC59}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8AF31165-C031-42B2-88D4-A1A89EFCDC59}.Release|Any CPU.Build.0 = Release|Any CPU
+		{47B30693-D73D-49A1-B41A-740454667ABF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{47B30693-D73D-49A1-B41A-740454667ABF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{47B30693-D73D-49A1-B41A-740454667ABF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{47B30693-D73D-49A1-B41A-740454667ABF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputersShop/ComputersShop/ComputersShop.csproj

@@ -8,4 +8,23 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerShopFileImplements\ComputersShopFileImplements.csproj" />
+    <ProjectReference Include="..\ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj" />
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopListImplement\ComputersShopListImplements.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="nlog.config">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

ComputersShop/ComputersShop/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace ComputersShop
-{
-    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
-    }
-}

ComputersShop/ComputersShop/Form1.cs

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

ComputersShop/ComputersShop/Form1.resx

@@ -1,120 +0,0 @@
-<?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>

ComputersShop/ComputersShop/FormComponent.Designer.cs

@@ -0,0 +1,118 @@
+namespace ComputersShop
+{
+    partial class FormComponent
+    {
+        /// <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();
+            labelCost = new Label();
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = 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:";
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Location = new Point(12, 42);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(38, 15);
+            labelCost.TabIndex = 1;
+            labelCost.Text = "Цена:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(77, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(295, 23);
+            textBoxName.TabIndex = 2;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(77, 39);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(295, 23);
+            textBoxCost.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(160, 75);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(270, 75);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormComponent
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(384, 111);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Controls.Add(labelCost);
+            Controls.Add(labelName);
+            Name = "FormComponent";
+            Text = "Компонент";
+            Load += FormComponent_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelCost;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

ComputersShop/ComputersShop/FormComponent.cs

@@ -0,0 +1,79 @@
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputersShop
+{
+    public partial class FormComponent : Form
+    {
+        public readonly ILogger _logger;
+        public readonly IComponentLogic _logic;
+        private int? _id;
+        public int Id { set { _id = value; } }
+        public FormComponent(ILogger<FormComponent> logger, IComponentLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormComponent_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    _logger.LogInformation("Ïîëó÷åíèå êîìïîíåíòà");
+                    var view = _logic.ReadElement(new ComponentSearchModel { Id = _id.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ComponentName;
+                        textBoxCost.Text = view.Cost.ToString();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Îøèáêà ïîëó÷åíèÿ êîìïîíåíòà");
+                    MessageBox.Show(ex.Message, "Îøèáêà", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Çàïîëíèòå íàçâàíèå", "Îøèáêà", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Ñîõðàíåíèå êîìïîíåíòà");
+            try
+            {
+                var model = new ComponentBindingModel
+                {
+                    Id = _id ?? 0,
+                    ComponentName = textBoxName.Text,
+                    Cost = Convert.ToDouble(textBoxCost.Text),
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Îøèáêà ïðè ñîõðàíåíèè. Äîïîëíèòåëüíàÿ èíôîðìàöèÿ â ëîãàõ.");
+                }
+                MessageBox.Show("Ñîõðàíåíèå ïðîøëî óñïåøíî", "Ñîîáùåíèå", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Îøèáêà ñîõðàíåíèÿ êîìïîíåíòà");
+                MessageBox.Show(ex.Message, "", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormComponent.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormComponents.Designer.cs

@@ -0,0 +1,148 @@
+namespace ComputersShop
+{
+    partial class FormComponents
+    {
+        /// <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()
+        {
+            DataGridViewCellStyle dataGridViewCellStyle1 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle2 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle3 = new DataGridViewCellStyle();
+            dataGridView = new DataGridView();
+            buttonAdd = new Button();
+            buttonUpdate = new Button();
+            buttonDelete = new Button();
+            buttonReload = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridViewCellStyle1.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle1.BackColor = SystemColors.Control;
+            dataGridViewCellStyle1.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle1.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle1.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle1.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle1.WrapMode = DataGridViewTriState.True;
+            dataGridView.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle1;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewCellStyle2.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle2.BackColor = SystemColors.Window;
+            dataGridViewCellStyle2.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle2.ForeColor = SystemColors.ControlText;
+            dataGridViewCellStyle2.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle2.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle2.WrapMode = DataGridViewTriState.False;
+            dataGridView.DefaultCellStyle = dataGridViewCellStyle2;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridViewCellStyle3.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle3.BackColor = SystemColors.Control;
+            dataGridViewCellStyle3.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle3.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle3.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle3.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle3.WrapMode = DataGridViewTriState.True;
+            dataGridView.RowHeadersDefaultCellStyle = dataGridViewCellStyle3;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(300, 361);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(320, 15);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(140, 30);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_CLick;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(320, 51);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(140, 30);
+            buttonUpdate.TabIndex = 6;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(320, 87);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(140, 30);
+            buttonDelete.TabIndex = 7;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonReload
+            // 
+            buttonReload.Location = new Point(320, 123);
+            buttonReload.Name = "buttonReload";
+            buttonReload.Size = new Size(140, 30);
+            buttonReload.TabIndex = 8;
+            buttonReload.Text = "Обновить";
+            buttonReload.UseVisualStyleBackColor = true;
+            buttonReload.Click += ButtonRef_Click;
+            // 
+            // FormComponents
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(484, 361);
+            Controls.Add(buttonReload);
+            Controls.Add(buttonDelete);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormComponents";
+            Text = "Компоненты";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpdate;
+        private Button buttonDelete;
+        private Button buttonReload;
+    }
+}

ComputersShop/ComputersShop/FormComponents.cs

@@ -0,0 +1,109 @@
+using ComputersShopContracts.BuisnessLogicsContracts;
+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 ComputersShop
+{
+    public partial class FormComponents : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentLogic _logic;
+        public FormComponents(ILogger<FormComponents> logger, IComponentLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+        public void FormComponents_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        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 компонентов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки компонентов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_CLick(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComponent));
+            if (service is FormComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormComponent));
+                if (service is FormComponent form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+
+                }
+
+            }
+        }
+
+        private void ButtonDel_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("Удвление компонента");
+                    try
+                    {
+                        if (!_logic.Delete(new ComputersShopContracts.BindingModels.ComponentBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления компонента");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

ComputersShop/ComputersShop/FormComponents.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormComputer.Designer.cs

@@ -0,0 +1,234 @@
+namespace ComputersShop
+{
+    partial class FormComputer
+    {
+        /// <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();
+            textBoxPrice = new TextBox();
+            textBoxName = new TextBox();
+            groupBoxComponents = new GroupBox();
+            dataGridView = new DataGridView();
+            ColumnId = new DataGridViewTextBoxColumn();
+            ColumnComponent = new DataGridViewTextBoxColumn();
+            ColumnCount = new DataGridViewTextBoxColumn();
+            buttonReload = new Button();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            groupBoxComponents.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, 42);
+            labelPrice.Name = "labelPrice";
+            labelPrice.Size = new Size(70, 15);
+            labelPrice.TabIndex = 1;
+            labelPrice.Text = "Стоимость:";
+            // 
+            // textBoxPrice
+            // 
+            textBoxPrice.Enabled = false;
+            textBoxPrice.Location = new Point(90, 39);
+            textBoxPrice.Name = "textBoxPrice";
+            textBoxPrice.Size = new Size(125, 23);
+            textBoxPrice.TabIndex = 2;
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(90, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(250, 23);
+            textBoxName.TabIndex = 3;
+            // 
+            // groupBoxComponents
+            // 
+            groupBoxComponents.Controls.Add(dataGridView);
+            groupBoxComponents.Controls.Add(buttonReload);
+            groupBoxComponents.Controls.Add(buttonDelete);
+            groupBoxComponents.Controls.Add(buttonUpdate);
+            groupBoxComponents.Controls.Add(buttonAdd);
+            groupBoxComponents.Location = new Point(12, 68);
+            groupBoxComponents.Name = "groupBoxComponents";
+            groupBoxComponents.Size = new Size(535, 295);
+            groupBoxComponents.TabIndex = 4;
+            groupBoxComponents.TabStop = false;
+            groupBoxComponents.Text = "Компоненты";
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ColumnId, ColumnComponent, 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.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(377, 273);
+            dataGridView.TabIndex = 0;
+            // 
+            // ColumnId
+            // 
+            ColumnId.HeaderText = "Id";
+            ColumnId.Name = "ColumnId";
+            ColumnId.ReadOnly = true;
+            ColumnId.Visible = false;
+            // 
+            // ColumnComponent
+            // 
+            ColumnComponent.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            ColumnComponent.HeaderText = "Компонент";
+            ColumnComponent.Name = "ColumnComponent";
+            ColumnComponent.ReadOnly = true;
+            // 
+            // ColumnCount
+            // 
+            ColumnCount.HeaderText = "Количество";
+            ColumnCount.Name = "ColumnCount";
+            ColumnCount.ReadOnly = true;
+            // 
+            // buttonReload
+            // 
+            buttonReload.Location = new Point(389, 130);
+            buttonReload.Name = "buttonReload";
+            buttonReload.Size = new Size(140, 30);
+            buttonReload.TabIndex = 12;
+            buttonReload.Text = "Обновить";
+            buttonReload.UseVisualStyleBackColor = true;
+            buttonReload.Click += ButtonRef_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(389, 94);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(140, 30);
+            buttonDelete.TabIndex = 11;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(389, 58);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(140, 30);
+            buttonUpdate.TabIndex = 10;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(389, 22);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(140, 30);
+            buttonAdd.TabIndex = 9;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(447, 369);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(337, 369);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // FormComputer
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(559, 411);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(groupBoxComponents);
+            Controls.Add(textBoxName);
+            Controls.Add(textBoxPrice);
+            Controls.Add(labelPrice);
+            Controls.Add(labelName);
+            Name = "FormComputer";
+            Text = "Компьютер";
+            Load += FormIomputer_Load;
+            groupBoxComponents.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxPrice;
+        private TextBox textBoxName;
+        private GroupBox groupBoxComponents;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Button buttonReload;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+        private DataGridViewTextBoxColumn ColumnId;
+        private DataGridViewTextBoxColumn ColumnComponent;
+        private DataGridViewTextBoxColumn ColumnCount;
+    }
+}

ComputersShop/ComputersShop/FormComputer.cs

@@ -0,0 +1,217 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopDataModels.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.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ComputersShop
+{
+    public partial class FormComputer : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IComputerLogic _logic;
+
+        private int? _id;
+
+        private Dictionary<int, (IComponentModel, int)> _computerComponents;
+        public int Id { set { _id = value; } }
+
+        public FormComputer(ILogger<FormComputer> logger, IComputerLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _computerComponents = new Dictionary<int, (IComponentModel, int)>();
+        }
+
+        private void FormIomputer_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Computer loading");
+                try
+                {
+                    var view = _logic.ReadElement(new ComputerSearchModel { Id = _id.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ComputerName;
+                        textBoxPrice.Text = view.Price.ToString();
+                        _computerComponents = view.ComputerComponents ?? new Dictionary<int, (IComponentModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Computer loading error");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Computer components loading");
+            try
+            {
+                if (_computerComponents != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var сomputerC in _computerComponents)
+                    {
+                        dataGridView.Rows.Add(new object[] { сomputerC.Key, сomputerC.Value.Item1.ComponentName, сomputerC.Value.Item2 });
+                    }
+                    textBoxPrice.Text = CalcPrice().ToString();
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Computer components loading error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComputerComponent));
+            if (service is FormComputerComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.ComponentModel == null)
+                    {
+                        return;
+                    }
+                    _logger.LogInformation("Adding new component: {ComponentName} - {Count}", form.ComponentModel.ComponentName, form.Count);
+                    if (_computerComponents.ContainsKey(form.Id))
+                    {
+                        _computerComponents[form.Id] = (form.ComponentModel, form.Count);
+                    }
+                    else
+                    {
+                        _computerComponents.Add(form.Id, (form.ComponentModel, form.Count));
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormComputerComponent));
+                if (service is FormComputerComponent form)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
+                    form.Id = id;
+                    form.Count = _computerComponents[id].Item2;
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.ComponentModel == null)
+                        {
+                            return;
+                        }
+                        _logger.LogInformation("Component editing: {ComponentName} - {Count}", form.ComponentModel.ComponentName, form.Count);
+                        _computerComponents[form.Id] = (form.ComponentModel, form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void ButtonDel_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("Deletion of component: {ComponentName} - {Count}", dataGridView.SelectedRows[0].Cells[1].Value,
+                            dataGridView.SelectedRows[0].Cells[2].Value);
+                        _computerComponents?.Remove(Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value));
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void ButtonRef_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 (_computerComponents == null || _computerComponents.Count == 0)
+            {
+                MessageBox.Show("Заполните компоненты", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Computer saving");
+            try
+            {
+                var model = new ComputerBindingModel
+                {
+                    Id = _id ?? 0,
+                    ComputerName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxPrice.Text),
+                    ComputerComponents = _computerComponents
+                };
+                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, "Computer saving error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private double CalcPrice()
+        {
+            double price = 0;
+            foreach (var elem in _computerComponents)
+            {
+                price += ((elem.Value.Item1?.Cost ?? 0) * elem.Value.Item2);
+            }
+            return Math.Round(price * 1.1, 2);
+        }
+    }
+}

ComputersShop/ComputersShop/FormComputer.resx

@@ -0,0 +1,69 @@
+<root>
+  <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="ColumnComponent.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>

ComputersShop/ComputersShop/FormComputerComponent.Designer.cs

@@ -0,0 +1,119 @@
+namespace ComputersShop
+{
+    partial class FormComputerComponent
+    {
+        /// <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(72, 15);
+            labelComponent.TabIndex = 0;
+            labelComponent.Text = "Компонент:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 42);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(75, 15);
+            labelCount.TabIndex = 1;
+            labelCount.Text = "Количество:";
+            // 
+            // comboBoxComponent
+            // 
+            comboBoxComponent.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(102, 6);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(270, 23);
+            comboBoxComponent.TabIndex = 2;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(102, 39);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(270, 23);
+            textBoxCount.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(270, 75);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 6;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(160, 75);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 7;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // FormComputerComponent
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(384, 111);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxComponent);
+            Controls.Add(labelCount);
+            Controls.Add(labelComponent);
+            Name = "FormComputerComponent";
+            Text = "Компонент компьютера";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelComponent;
+        private Label labelCount;
+        private ComboBox comboBoxComponent;
+        private TextBox textBoxCount;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

ComputersShop/ComputersShop/FormComputerComponent.cs

@@ -0,0 +1,96 @@
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.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 ComputersShop
+{
+    public partial class FormComputerComponent : Form
+    {
+        private readonly List<ComponentViewModel>? _list;
+        public int Id
+        {
+            get
+            {
+                return Convert.ToInt32(comboBoxComponent.SelectedValue);
+            }
+            set
+            {
+                comboBoxComponent.SelectedValue = value;
+            }
+        }
+
+        public IComponentModel? ComponentModel
+        {
+            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 FormComputerComponent(IComponentLogic 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 Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxComponent.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите компонент", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormComputerComponent.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormComputers.Designer.cs

@@ -0,0 +1,148 @@
+namespace ComputersShop
+{
+    partial class FormComputers
+    {
+        /// <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()
+        {
+            DataGridViewCellStyle dataGridViewCellStyle1 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle2 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle3 = new DataGridViewCellStyle();
+            dataGridView = new DataGridView();
+            buttonAdd = new Button();
+            buttonUpdate = new Button();
+            buttonDelete = new Button();
+            buttonReload = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridViewCellStyle1.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle1.BackColor = SystemColors.Control;
+            dataGridViewCellStyle1.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle1.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle1.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle1.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle1.WrapMode = DataGridViewTriState.True;
+            dataGridView.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle1;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewCellStyle2.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle2.BackColor = SystemColors.Window;
+            dataGridViewCellStyle2.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle2.ForeColor = SystemColors.ControlText;
+            dataGridViewCellStyle2.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle2.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle2.WrapMode = DataGridViewTriState.False;
+            dataGridView.DefaultCellStyle = dataGridViewCellStyle2;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridViewCellStyle3.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle3.BackColor = SystemColors.Control;
+            dataGridViewCellStyle3.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle3.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle3.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle3.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle3.WrapMode = DataGridViewTriState.True;
+            dataGridView.RowHeadersDefaultCellStyle = dataGridViewCellStyle3;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(300, 361);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(320, 15);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(140, 30);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(320, 51);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(140, 30);
+            buttonUpdate.TabIndex = 6;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(320, 87);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(140, 30);
+            buttonDelete.TabIndex = 7;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonReload
+            // 
+            buttonReload.Location = new Point(320, 123);
+            buttonReload.Name = "buttonReload";
+            buttonReload.Size = new Size(140, 30);
+            buttonReload.TabIndex = 8;
+            buttonReload.Text = "Обновить";
+            buttonReload.UseVisualStyleBackColor = true;
+            buttonReload.Click += ButtonRef_Click;
+            // 
+            // FormComputers
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(484, 361);
+            Controls.Add(buttonReload);
+            Controls.Add(buttonDelete);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormComputers";
+            Text = "Компьютеры";
+            Load += FormComputers_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpdate;
+        private Button buttonDelete;
+        private Button buttonReload;
+    }
+}

ComputersShop/ComputersShop/FormComputers.cs

@@ -0,0 +1,113 @@
+using Microsoft.Extensions.Logging;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+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 ComputersShop
+{
+    public partial class FormComputers : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IComputerLogic _logic;
+
+        public FormComputers(ILogger<FormComputers> logger, IComputerLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormComputers_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["ComputerName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["ComputerComponents"].Visible = false;
+                }
+                _logger.LogInformation("Computers loading");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Computers loading error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComputer));
+            if (service is FormComputer form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormComputer));
+                if (service is FormComputer form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void ButtonDel_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("Deletion of computer");
+                    try
+                    {
+                        if (!_logic.Delete(new ComputerBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Computer deletion error");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

ComputersShop/ComputersShop/FormComputers.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormCreateOrder.Designer.cs

@@ -0,0 +1,145 @@
+namespace ComputersShop
+{
+    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()
+        {
+            textBoxCount = new TextBox();
+            comboBoxComputer = new ComboBox();
+            labelCount = new Label();
+            labelComputer = new Label();
+            textBoxSum = new TextBox();
+            labelSum = new Label();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(102, 39);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(270, 23);
+            textBoxCount.TabIndex = 7;
+            textBoxCount.TextChanged += TextBoxCount_TextChanged;
+            // 
+            // comboBoxComputer
+            // 
+            comboBoxComputer.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComputer.FormattingEnabled = true;
+            comboBoxComputer.Location = new Point(102, 6);
+            comboBoxComputer.Name = "comboBoxComputer";
+            comboBoxComputer.Size = new Size(270, 23);
+            comboBoxComputer.TabIndex = 6;
+            comboBoxComputer.SelectedIndexChanged += ComboBoxComputer_SelectedIndexChanged;
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 42);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(75, 15);
+            labelCount.TabIndex = 5;
+            labelCount.Text = "Количество:";
+            // 
+            // labelComputer
+            // 
+            labelComputer.AutoSize = true;
+            labelComputer.Location = new Point(12, 9);
+            labelComputer.Name = "labelComputer";
+            labelComputer.Size = new Size(74, 15);
+            labelComputer.TabIndex = 4;
+            labelComputer.Text = "Компьютер:";
+            // 
+            // textBoxSum
+            // 
+            textBoxSum.Location = new Point(102, 71);
+            textBoxSum.Name = "textBoxSum";
+            textBoxSum.ReadOnly = true;
+            textBoxSum.Size = new Size(270, 23);
+            textBoxSum.TabIndex = 9;
+            // 
+            // labelSum
+            // 
+            labelSum.AutoSize = true;
+            labelSum.Location = new Point(12, 74);
+            labelSum.Name = "labelSum";
+            labelSum.Size = new Size(48, 15);
+            labelSum.TabIndex = 8;
+            labelSum.Text = "Сумма:";
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(160, 120);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 11;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(270, 120);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 10;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormCreateOrder
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(384, 161);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxSum);
+            Controls.Add(labelSum);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxComputer);
+            Controls.Add(labelCount);
+            Controls.Add(labelComputer);
+            Name = "FormCreateOrder";
+            Text = "Заказ";
+            Load += FormCreateOrder_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private TextBox textBoxCount;
+        private ComboBox comboBoxComputer;
+        private Label labelCount;
+        private Label labelComputer;
+        private TextBox textBoxSum;
+        private Label labelSum;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

ComputersShop/ComputersShop/FormCreateOrder.cs

@@ -0,0 +1,118 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using Microsoft.Extensions.Logging;
+using ComputersShopContracts.SearchModels;
+
+
+namespace ComputersShop
+{
+    public partial class FormCreateOrder : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IComputerLogic _logicC;
+
+        private readonly IOrderLogic _logicO;
+
+        public FormCreateOrder(ILogger<FormCreateOrder> logger, IComputerLogic logicC, IOrderLogic logicO)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicC = logicC;
+            _logicO = logicO;
+        }
+
+        private void FormCreateOrder_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Loading computer for order");
+            try
+            {
+                var computerList = _logicC.ReadList(null);
+                if (computerList != null)
+                {
+                    comboBoxComputer.DataSource = computerList;
+                    comboBoxComputer.DisplayMember = "ComputerName";
+                    comboBoxComputer.ValueMember = "Id";
+                    comboBoxComputer.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during loading computer for order");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void CalcSum()
+        {
+            if (comboBoxComputer.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxComputer.SelectedValue);
+                    var product = _logicC.ReadElement(new ComputerSearchModel { Id = id });
+                    int count = Convert.ToInt32(textBoxCount.Text);
+                    textBoxSum.Text = Math.Round(count * (product?.Price ?? 0), 2).ToString();
+                    _logger.LogInformation("Calculation of order sum");
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Calculation of order sum error");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void TextBoxCount_TextChanged(object sender, EventArgs e)
+        {
+            CalcSum();
+        }
+
+        private void ComboBoxComputer_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 (comboBoxComputer.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите компьютер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Order creation");
+            try
+            {
+                var operationResult = _logicO.CreateOrder(new OrderBindingModel
+                {
+                    ComputerId = Convert.ToInt32(comboBoxComputer.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, "Order creation error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormCreateOrder.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormMain.Designer.cs

@@ -0,0 +1,212 @@
+namespace ComputersShop
+{
+    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();
+            справочникиToolStripMenuItem = new ToolStripMenuItem();
+            компонентыToolStripMenuItem = new ToolStripMenuItem();
+            комьютерыToolStripMenuItem = new ToolStripMenuItem();
+            магазиныToolStripMenuItem = new ToolStripMenuItem();
+            dataGridView = new DataGridView();
+            buttonCreateOrder = new Button();
+            buttonTakeOrderInWork = new Button();
+            buttonOrderReady = new Button();
+            buttonIssuedOrder = new Button();
+            buttonUpdate = new Button();
+            buttonSupplyShop = new Button();
+            buttonSell = new Button();
+            menuStrip.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // menuStrip
+            // 
+            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(984, 24);
+            menuStrip.TabIndex = 0;
+            menuStrip.Text = "menuStrip1";
+            // 
+            // справочникиToolStripMenuItem
+            // 
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { компонентыToolStripMenuItem, комьютерыToolStripMenuItem, магазиныToolStripMenuItem });
+            справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
+            справочникиToolStripMenuItem.Size = new Size(94, 20);
+            справочникиToolStripMenuItem.Text = "Справочники";
+            // 
+            // компонентыToolStripMenuItem
+            // 
+            компонентыToolStripMenuItem.Name = "компонентыToolStripMenuItem";
+            компонентыToolStripMenuItem.Size = new Size(145, 22);
+            компонентыToolStripMenuItem.Text = "Компоненты";
+            компонентыToolStripMenuItem.Click += КомпонентыToolStripMenuItem_Click;
+            // 
+            // комьютерыToolStripMenuItem
+            // 
+            комьютерыToolStripMenuItem.Name = "комьютерыToolStripMenuItem";
+            комьютерыToolStripMenuItem.Size = new Size(145, 22);
+            комьютерыToolStripMenuItem.Text = "Комьютеры";
+            комьютерыToolStripMenuItem.Click += КомпьютерыToolStripMenuItem_Click;
+            // 
+            // магазиныToolStripMenuItem
+            // 
+            магазиныToolStripMenuItem.Name = "магазиныToolStripMenuItem";
+            магазиныToolStripMenuItem.Size = new Size(145, 22);
+            магазиныToolStripMenuItem.Text = "Магазины";
+            магазиныToolStripMenuItem.Click += МагазиныToolStripMenuItem_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 27);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(780, 425);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonCreateOrder
+            // 
+            buttonCreateOrder.Location = new Point(792, 27);
+            buttonCreateOrder.Name = "buttonCreateOrder";
+            buttonCreateOrder.Size = new Size(180, 35);
+            buttonCreateOrder.TabIndex = 2;
+            buttonCreateOrder.Text = "Создать заказ";
+            buttonCreateOrder.UseVisualStyleBackColor = true;
+            buttonCreateOrder.Click += ButtonCreateOrder_Click;
+            // 
+            // buttonTakeOrderInWork
+            // 
+            buttonTakeOrderInWork.Location = new Point(792, 87);
+            buttonTakeOrderInWork.Name = "buttonTakeOrderInWork";
+            buttonTakeOrderInWork.Size = new Size(180, 35);
+            buttonTakeOrderInWork.TabIndex = 3;
+            buttonTakeOrderInWork.Text = "Отправить на выполнение";
+            buttonTakeOrderInWork.UseVisualStyleBackColor = true;
+            buttonTakeOrderInWork.Click += ButtonTakeOrderInWork_Click;
+            // 
+            // buttonOrderReady
+            // 
+            buttonOrderReady.Location = new Point(792, 147);
+            buttonOrderReady.Name = "buttonOrderReady";
+            buttonOrderReady.Size = new Size(180, 35);
+            buttonOrderReady.TabIndex = 4;
+            buttonOrderReady.Text = "Заказ готов";
+            buttonOrderReady.UseVisualStyleBackColor = true;
+            buttonOrderReady.Click += ButtonOrderReady_Click;
+            // 
+            // buttonIssuedOrder
+            // 
+            buttonIssuedOrder.Location = new Point(792, 207);
+            buttonIssuedOrder.Name = "buttonIssuedOrder";
+            buttonIssuedOrder.Size = new Size(180, 35);
+            buttonIssuedOrder.TabIndex = 5;
+            buttonIssuedOrder.Text = "Заказ выдан";
+            buttonIssuedOrder.UseVisualStyleBackColor = true;
+            buttonIssuedOrder.Click += ButtonIssuedOrder_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(792, 267);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(180, 35);
+            buttonUpdate.TabIndex = 6;
+            buttonUpdate.Text = "Обновить список";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonSupplyShop
+            // 
+            buttonSupplyShop.Location = new Point(792, 327);
+            buttonSupplyShop.Name = "buttonSupplyShop";
+            buttonSupplyShop.Size = new Size(180, 35);
+            buttonSupplyShop.TabIndex = 7;
+            buttonSupplyShop.Text = "Пополнение магазина";
+            buttonSupplyShop.UseVisualStyleBackColor = true;
+            buttonSupplyShop.Click += buttonSupplyShop_Click;
+            // 
+            // buttonSell
+            // 
+            buttonSell.Location = new Point(792, 387);
+            buttonSell.Name = "buttonSell";
+            buttonSell.Size = new Size(180, 35);
+            buttonSell.TabIndex = 8;
+            buttonSell.Text = "Продажа";
+            buttonSell.UseVisualStyleBackColor = true;
+            buttonSell.Click += buttonSell_Click;
+            // 
+            // FormMain
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(984, 450);
+            Controls.Add(buttonSell);
+            Controls.Add(buttonSupplyShop);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonIssuedOrder);
+            Controls.Add(buttonOrderReady);
+            Controls.Add(buttonTakeOrderInWork);
+            Controls.Add(buttonCreateOrder);
+            Controls.Add(dataGridView);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
+            Name = "FormMain";
+            Text = "Компьютерный магазин";
+            Load += FormMain_Load;
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem справочникиToolStripMenuItem;
+        private ToolStripMenuItem компонентыToolStripMenuItem;
+        private ToolStripMenuItem комьютерыToolStripMenuItem;
+        private DataGridView dataGridView;
+        private Button buttonCreateOrder;
+        private Button buttonTakeOrderInWork;
+        private Button buttonOrderReady;
+        private Button buttonIssuedOrder;
+        private Button buttonUpdate;
+        private ToolStripMenuItem магазиныToolStripMenuItem;
+        private Button buttonSupplyShop;
+        private Button buttonSell;
+    }
+}

ComputersShop/ComputersShop/FormMain.cs

@@ -0,0 +1,185 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+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 ComputersShop
+{
+    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()
+        {
+            try
+            {
+                var list = _orderLogic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["ComputerId"].Visible = false;
+                    dataGridView.Columns["ComputerName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Orders loading");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Orders loading error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void КомпонентыToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComponents));
+            if (service is FormComponents form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void КомпьютерыToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComputers));
+            if (service is FormComputers form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void МагазиныToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormShops));
+            if (service is FormShops form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        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 ButtonTakeOrderInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Order №{id}. Status changes to '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, "Error taking an order to work");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void ButtonOrderReady_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var computerId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ComputerId"].Value);
+                var count = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Count"].Value);
+                _logger.LogInformation("Order №{id}.  Status changes to 'Готов'", id);
+                try
+                {
+                    var operationResult = _orderLogic.FinishOrder(new OrderBindingModel { Id = id, ComputerId = computerId, Count = count });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Order readiness marking error");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void ButtonIssuedOrder_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Order №{id}. Status changes to '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("Order №{id} issued", id);
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Order issue marking error");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonSupplyShop_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormShopSupply));
+            if (service is FormShopSupply form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void buttonSell_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSell));
+            if (service is FormSell form)
+            {
+                form.ShowDialog();
+            }
+        }
+    }
+}

ComputersShop/ComputersShop/FormMain.resx

@@ -0,0 +1,63 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormSell.Designer.cs

@@ -0,0 +1,119 @@
+namespace ComputersShop
+{
+    partial class FormSell
+    {
+        /// <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()
+        {
+            labelComputer = new Label();
+            comboBoxComputer = new ComboBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxCount = new TextBox();
+            labelCount = new Label();
+            SuspendLayout();
+            // 
+            // labelComputer
+            // 
+            labelComputer.AutoSize = true;
+            labelComputer.Location = new Point(12, 9);
+            labelComputer.Name = "labelComputer";
+            labelComputer.Size = new Size(74, 15);
+            labelComputer.TabIndex = 23;
+            labelComputer.Text = "Компьютер:";
+            // 
+            // comboBoxComputer
+            // 
+            comboBoxComputer.FormattingEnabled = true;
+            comboBoxComputer.Location = new Point(90, 6);
+            comboBoxComputer.Margin = new Padding(3, 2, 3, 2);
+            comboBoxComputer.Name = "comboBoxComputer";
+            comboBoxComputer.Size = new Size(280, 23);
+            comboBoxComputer.TabIndex = 22;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(270, 70);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 19;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(160, 70);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 18;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(90, 34);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(280, 23);
+            textBoxCount.TabIndex = 17;
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 37);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(75, 15);
+            labelCount.TabIndex = 16;
+            labelCount.Text = "Количество:";
+            // 
+            // FormSell
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(385, 116);
+            Controls.Add(labelComputer);
+            Controls.Add(comboBoxComputer);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelCount);
+            Name = "FormSell";
+            Text = "FormSell";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelComputer;
+        private ComboBox comboBoxComputer;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private TextBox textBoxCount;
+        private Label labelCount;
+    }
+}

ComputersShop/ComputersShop/FormSell.cs

@@ -0,0 +1,124 @@
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.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 ComputersShop
+{
+    public partial class FormSell : Form
+    {
+        private readonly List<ComputerViewModel>? _computerList;
+        IShopLogic _shopLogic;
+        IComputerLogic _computerLogic;
+        public FormSell(IComputerLogic computerLogic, IShopLogic shopLogic)
+        {
+            InitializeComponent();
+            _computerLogic = computerLogic;
+            _shopLogic = shopLogic;
+            _computerList = computerLogic.ReadList(null);
+            if (_computerList != null)
+            {
+                comboBoxComputer.DisplayMember = "ComputerName";
+                comboBoxComputer.ValueMember = "Id";
+                comboBoxComputer.DataSource = _computerList;
+                comboBoxComputer.SelectedItem = null;
+            }
+        }
+
+        public int ComputerId
+        {
+            get
+            {
+                return Convert.ToInt32(comboBoxComputer.SelectedValue);
+            }
+            set
+            {
+                comboBoxComputer.SelectedValue = value;
+            }
+        }
+
+        public IComputerModel? ComputerModel
+        {
+            get
+            {
+                if (_computerList == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _computerList)
+                {
+                    if (elem.Id == ComputerId)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+
+        public int Count
+        {
+            get
+            {
+                return Convert.ToInt32(textBoxCount.Text);
+            }
+            set
+            {
+                textBoxCount.Text = value.ToString();
+            }
+        }
+        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 (comboBoxComputer.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите компьютер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            try
+            {
+                int count = Convert.ToInt32(textBoxCount.Text);
+
+                bool res = _shopLogic.MakeSell(_computerLogic.ReadElement(new()
+                {
+                    Id = Convert.ToInt32(comboBoxComputer.SelectedValue)
+                }),
+                    count
+                );
+
+                if (!res)
+                {
+                    throw new Exception("Ошибка при продаже.");
+                }
+
+                MessageBox.Show("Продажа прошла успешно");
+                DialogResult = DialogResult.OK;
+                Close();
+
+            }
+            catch (Exception err)
+            {
+                MessageBox.Show("Ошибка продажи");
+                return;
+            }
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormSell.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormShop.Designer.cs

@@ -0,0 +1,212 @@
+namespace ComputersShop
+{
+    partial class FormShop
+    {
+        /// <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()
+        {
+            textBoxName = new TextBox();
+            labelAddress = new Label();
+            labelName = new Label();
+            DateTimePickerDateOpen = new DateTimePicker();
+            labelDateOpen = new Label();
+            dataGridView = new DataGridView();
+            ColumnId = new DataGridViewTextBoxColumn();
+            ColumnComputer = new DataGridViewTextBoxColumn();
+            ColumnCount = new DataGridViewTextBoxColumn();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxAddress = new TextBox();
+            labelMaxCount = new Label();
+            numericUpDownMaxCount = new NumericUpDown();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownMaxCount).BeginInit();
+            SuspendLayout();
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(105, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(235, 23);
+            textBoxName.TabIndex = 11;
+            // 
+            // labelAddress
+            // 
+            labelAddress.AutoSize = true;
+            labelAddress.Location = new Point(12, 42);
+            labelAddress.Name = "labelAddress";
+            labelAddress.Size = new Size(43, 15);
+            labelAddress.TabIndex = 9;
+            labelAddress.Text = "Адрес:";
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(12, 9);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(62, 15);
+            labelName.TabIndex = 8;
+            labelName.Text = "Название:";
+            // 
+            // DateTimePickerDateOpen
+            // 
+            DateTimePickerDateOpen.Location = new Point(105, 72);
+            DateTimePickerDateOpen.Name = "DateTimePickerDateOpen";
+            DateTimePickerDateOpen.Size = new Size(235, 23);
+            DateTimePickerDateOpen.TabIndex = 15;
+            // 
+            // labelDateOpen
+            // 
+            labelDateOpen.AutoSize = true;
+            labelDateOpen.Location = new Point(12, 75);
+            labelDateOpen.Name = "labelDateOpen";
+            labelDateOpen.Size = new Size(87, 15);
+            labelDateOpen.TabIndex = 16;
+            labelDateOpen.Text = "Дата открытия";
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ColumnId, ColumnComputer, ColumnCount });
+            dataGridView.Location = new Point(12, 160);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(535, 250);
+            dataGridView.TabIndex = 17;
+            // 
+            // ColumnId
+            // 
+            ColumnId.HeaderText = "Id";
+            ColumnId.Name = "ColumnId";
+            ColumnId.ReadOnly = true;
+            ColumnId.Visible = false;
+            // 
+            // ColumnComputer
+            // 
+            ColumnComputer.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            ColumnComputer.HeaderText = "Компьютер";
+            ColumnComputer.Name = "ColumnComputer";
+            ColumnComputer.ReadOnly = true;
+            // 
+            // ColumnCount
+            // 
+            ColumnCount.HeaderText = "Количество";
+            ColumnCount.Name = "ColumnCount";
+            ColumnCount.ReadOnly = true;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(445, 420);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 19;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(335, 420);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 18;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // textBoxAddress
+            // 
+            textBoxAddress.Location = new Point(105, 39);
+            textBoxAddress.Name = "textBoxAddress";
+            textBoxAddress.Size = new Size(235, 23);
+            textBoxAddress.TabIndex = 20;
+            // 
+            // labelMaxCount
+            // 
+            labelMaxCount.AutoSize = true;
+            labelMaxCount.Location = new Point(12, 108);
+            labelMaxCount.Name = "labelMaxCount";
+            labelMaxCount.Size = new Size(80, 15);
+            labelMaxCount.TabIndex = 21;
+            labelMaxCount.Text = "Макс. кол-во";
+            // 
+            // numericUpDownMaxCount
+            // 
+            numericUpDownMaxCount.Location = new Point(105, 105);
+            numericUpDownMaxCount.Name = "numericUpDownMaxCount";
+            numericUpDownMaxCount.Size = new Size(235, 23);
+            numericUpDownMaxCount.TabIndex = 22;
+            // 
+            // FormShop
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(559, 461);
+            Controls.Add(numericUpDownMaxCount);
+            Controls.Add(labelMaxCount);
+            Controls.Add(textBoxAddress);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(dataGridView);
+            Controls.Add(labelDateOpen);
+            Controls.Add(DateTimePickerDateOpen);
+            Controls.Add(textBoxName);
+            Controls.Add(labelAddress);
+            Controls.Add(labelName);
+            Name = "FormShop";
+            Text = "Магазин";
+            Load += FormShop_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownMaxCount).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private TextBox textBoxName;
+        private Label labelAddress;
+        private Label labelName;
+        private DateTimePicker DateTimePickerDateOpen;
+        private Label labelDateOpen;
+        private DataGridView dataGridView;
+        private DataGridViewTextBoxColumn ColumnId;
+        private DataGridViewTextBoxColumn ColumnComputer;
+        private DataGridViewTextBoxColumn ColumnCount;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private TextBox textBoxAddress;
+        private Label labelMaxCount;
+        private NumericUpDown numericUpDownMaxCount;
+    }
+}

ComputersShop/ComputersShop/FormShop.cs

@@ -0,0 +1,136 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopDataModels.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.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ComputersShop
+{
+    public partial class FormShop : Form
+    {
+        private readonly IShopLogic _logic;
+        private readonly ILogger _logger;
+        private Dictionary<int, (IComputerModel, int)> _shopComputers;
+        private int? _id;
+        public int Id { set { _id = value; } }
+
+        public FormShop(ILogger<FormShop> logger, IShopLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _shopComputers = new();
+        }
+
+        private void FormShop_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Loading shop");
+
+                try
+                {
+                    var shop = _logic.ReadElement(new ShopSearchModel { Id = _id });
+
+                    if (shop != null)
+                    {
+                        textBoxName.Text = shop.ShopName;
+                        textBoxAddress.Text = shop.Address;
+                        DateTimePickerDateOpen.Value = shop.DateOpen;
+                        numericUpDownMaxCount.Value = shop.MaxCount;
+                        _shopComputers = shop.ShopComputers ?? new Dictionary<int, (IComputerModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Error during loading shop");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Loading shop's bouquets");
+
+            try
+            {
+                if (_shopComputers != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var computer in _shopComputers)
+                    {
+                        dataGridView.Rows.Add(new object[] { computer.Key, computer.Value.Item1.ComputerName, computer.Value.Item2 });
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during loading shop's computers");
+                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;
+            }
+
+            if (string.IsNullOrEmpty(textBoxAddress.Text))
+            {
+                MessageBox.Show("Заполните адрес", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Saving shop");
+
+            try
+            {
+                var model = new ShopBindingModel
+                {
+                    Id = _id ?? 0,
+                    ShopName = textBoxName.Text,
+                    Address = textBoxAddress.Text,
+                    DateOpen = DateTimePickerDateOpen.Value,
+                    MaxCount = (int)numericUpDownMaxCount.Value,
+                    ShopComputers = _shopComputers
+                };
+
+                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, "Error during saving shop");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormShop.resx

@@ -0,0 +1,78 @@
+<root>
+  <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="ColumnComputer.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>
+  <metadata name="ColumnId.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnComputer.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>

ComputersShop/ComputersShop/FormShopSupply.Designer.cs

@@ -0,0 +1,147 @@
+namespace ComputersShop
+{
+    partial class FormShopSupply
+    {
+        /// <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()
+        {
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxCount = new TextBox();
+            labelCount = new Label();
+            labelShop = new Label();
+            comboBoxShop = new ComboBox();
+            comboBoxComputer = new ComboBox();
+            labelComputer = new Label();
+            SuspendLayout();
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(270, 100);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(100, 30);
+            buttonCancel.TabIndex = 11;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(160, 100);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(100, 30);
+            buttonSave.TabIndex = 10;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(90, 64);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(280, 23);
+            textBoxCount.TabIndex = 9;
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(12, 67);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(75, 15);
+            labelCount.TabIndex = 7;
+            labelCount.Text = "Количество:";
+            // 
+            // labelShop
+            // 
+            labelShop.AutoSize = true;
+            labelShop.Location = new Point(12, 9);
+            labelShop.Name = "labelShop";
+            labelShop.Size = new Size(57, 15);
+            labelShop.TabIndex = 12;
+            labelShop.Text = "Магазин:";
+            // 
+            // comboBoxShop
+            // 
+            comboBoxShop.FormattingEnabled = true;
+            comboBoxShop.Location = new Point(90, 6);
+            comboBoxShop.Margin = new Padding(3, 2, 3, 2);
+            comboBoxShop.Name = "comboBoxShop";
+            comboBoxShop.Size = new Size(280, 23);
+            comboBoxShop.TabIndex = 13;
+            // 
+            // comboBoxComputer
+            // 
+            comboBoxComputer.FormattingEnabled = true;
+            comboBoxComputer.Location = new Point(90, 36);
+            comboBoxComputer.Margin = new Padding(3, 2, 3, 2);
+            comboBoxComputer.Name = "comboBoxComputer";
+            comboBoxComputer.Size = new Size(280, 23);
+            comboBoxComputer.TabIndex = 14;
+            // 
+            // labelComputer
+            // 
+            labelComputer.AutoSize = true;
+            labelComputer.Location = new Point(12, 39);
+            labelComputer.Name = "labelComputer";
+            labelComputer.Size = new Size(74, 15);
+            labelComputer.TabIndex = 15;
+            labelComputer.Text = "Компьютер:";
+            // 
+            // FormShopSupply
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(384, 139);
+            Controls.Add(labelComputer);
+            Controls.Add(comboBoxComputer);
+            Controls.Add(comboBoxShop);
+            Controls.Add(labelShop);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelCount);
+            Name = "FormShopSupply";
+            Text = "FormShopSupply";
+            Load += FormShopSupply_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonCancel;
+        private Button buttonSave;
+        private TextBox textBoxCount;
+        private TextBox textBoxName;
+        private Label labelCount;
+        private Label labelName;
+        private TextBox textBox1;
+        private Label labelShop;
+        private ComboBox comboBoxShop;
+        private ComboBox comboBoxComputer;
+        private Label labelComputer;
+    }
+}

ComputersShop/ComputersShop/FormShopSupply.cs

@@ -0,0 +1,127 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.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 ComputersShop
+{
+    public partial class FormShopSupply : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IComputerLogic _logicComputer;
+        private readonly IShopLogic _logicShop;
+
+        public FormShopSupply(ILogger<FormShopSupply> logger, IComputerLogic logicBouquet, IShopLogic logicShop)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicComputer = logicBouquet;
+            _logicShop = logicShop;
+        }
+
+        private void FormShopSupply_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Loading computers for supplying");
+
+            try
+            {
+                var list = _logicComputer.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxComputer.DisplayMember = "ComputerName";
+                    comboBoxComputer.ValueMember = "Id";
+                    comboBoxComputer.DataSource = list;
+                    comboBoxComputer.SelectedItem = null;
+                }
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during loading bouquets for supplying");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+
+            _logger.LogInformation("Loading shops for supplying");
+
+            try
+            {
+                var list = _logicShop.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxShop.DisplayMember = "ShopName";
+                    comboBoxShop.ValueMember = "Id";
+                    comboBoxShop.DataSource = list;
+                    comboBoxShop.SelectedItem = null;
+                }
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during loading shops for supplying");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        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 (comboBoxComputer.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите букет", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            if (comboBoxShop.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите магазин", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Creation of supply");
+
+            try
+            {
+                var operationResult = _logicShop.SupplyComputers(
+                    new ShopSearchModel { Id = Convert.ToInt32(comboBoxShop.SelectedValue), Name = comboBoxShop.Text },
+                    new ComputerBindingModel { Id = Convert.ToInt32(comboBoxComputer.SelectedValue), ComputerName = comboBoxComputer.Text },
+                    Convert.ToInt32(textBoxCount.Text)
+                );
+
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при создании поставки. Дополнительная информация в логах.");
+                }
+
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during creation of supply");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShop/FormShopSupply.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/FormShops.Designer.cs

@@ -0,0 +1,149 @@
+namespace ComputersShop
+{
+    partial class FormShops
+    {
+        /// <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()
+        {
+            DataGridViewCellStyle dataGridViewCellStyle1 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle2 = new DataGridViewCellStyle();
+            DataGridViewCellStyle dataGridViewCellStyle3 = new DataGridViewCellStyle();
+            buttonReload = new Button();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // buttonReload
+            // 
+            buttonReload.Location = new Point(432, 123);
+            buttonReload.Name = "buttonReload";
+            buttonReload.Size = new Size(140, 30);
+            buttonReload.TabIndex = 13;
+            buttonReload.Text = "Обновить";
+            buttonReload.UseVisualStyleBackColor = true;
+            buttonReload.Click += buttonUpdate_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(432, 87);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(140, 30);
+            buttonDelete.TabIndex = 12;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += buttonDelete_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(432, 51);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(140, 30);
+            buttonUpdate.TabIndex = 11;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += buttonEdit_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(432, 15);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(140, 30);
+            buttonAdd.TabIndex = 10;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = SystemColors.ButtonHighlight;
+            dataGridViewCellStyle1.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle1.BackColor = SystemColors.Control;
+            dataGridViewCellStyle1.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle1.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle1.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle1.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle1.WrapMode = DataGridViewTriState.True;
+            dataGridView.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle1;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewCellStyle2.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle2.BackColor = SystemColors.Window;
+            dataGridViewCellStyle2.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle2.ForeColor = SystemColors.ControlText;
+            dataGridViewCellStyle2.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle2.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle2.WrapMode = DataGridViewTriState.False;
+            dataGridView.DefaultCellStyle = dataGridViewCellStyle2;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridViewCellStyle3.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            dataGridViewCellStyle3.BackColor = SystemColors.Control;
+            dataGridViewCellStyle3.Font = new Font("Segoe UI", 9F, FontStyle.Regular, GraphicsUnit.Point);
+            dataGridViewCellStyle3.ForeColor = SystemColors.WindowText;
+            dataGridViewCellStyle3.SelectionBackColor = SystemColors.Highlight;
+            dataGridViewCellStyle3.SelectionForeColor = SystemColors.HighlightText;
+            dataGridViewCellStyle3.WrapMode = DataGridViewTriState.True;
+            dataGridView.RowHeadersDefaultCellStyle = dataGridViewCellStyle3;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowTemplate.Height = 25;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(400, 361);
+            dataGridView.TabIndex = 9;
+            // 
+            // FormShops
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(584, 361);
+            Controls.Add(buttonReload);
+            Controls.Add(buttonDelete);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormShops";
+            Text = "Магазины";
+            Load += FormShops_Load;
+            Click += FormShops_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Button buttonReload;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

ComputersShop/ComputersShop/FormShops.cs

@@ -0,0 +1,122 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+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 ComputersShop
+{
+    public partial class FormShops : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IShopLogic _logic;
+
+        public FormShops(ILogger<FormShops> logger, IShopLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormShops_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["ShopName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["Address"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["DateOpen"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["ShopComputers"].Visible = false;
+                }
+
+                _logger.LogInformation("Loading shops");
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error during loading shops");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormShop));
+
+            if (service is FormShop form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonEdit_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormShop));
+
+                if (service is FormShop form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void buttonDelete_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить магазин?", "Подтверждение", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Deleting shop");
+
+                    try
+                    {
+                        if (!_logic.Delete(new ShopBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Error during deleting shop");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+    }
+}

ComputersShop/ComputersShop/FormShops.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShop/Program.cs

@@ -1,7 +1,19 @@
+using ComputersShopBusinessLogic.BusinessLogics;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopFileImplements.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+using System;
+
 namespace ComputersShop
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         ///  The main entry point for the application.
         /// </summary>
@@ -11,7 +23,39 @@ namespace ComputersShop
             // 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<IComponentStorage, ComponentStorage>();
+            services.AddTransient<IOrderStorage, OrderStorage>();
+            services.AddTransient<IComputerStorage, ComputerStorage>();
+			services.AddTransient<IShopStorage, ShopStorage>();
+
+			services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IComputerLogic, ComputerLogic>();
+			services.AddTransient<IShopLogic, ShopLogic>();
+
+			services.AddTransient<FormMain>();
+            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponents>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormComputer>();
+            services.AddTransient<FormComputerComponent>();
+            services.AddTransient<FormComputers>();
+			services.AddTransient<FormShop>();
+			services.AddTransient<FormShops>();
+			services.AddTransient<FormShopSupply>();
+			services.AddTransient<FormSell>();
+		}
     }
 }

ComputersShop/ComputersShop/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>

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ComponentLogic.cs

@@ -0,0 +1,112 @@
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ComponentLogic: IComponentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentStorage _componentStorage;
+        public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage componentStorage)
+        {
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+        public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ComponentName:{ComponentName}. Id:{Id}", model?.ComponentName, model?.Id);
+            var list = model == null ? _componentStorage.GetFullList() : _componentStorage.GetFiltredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public ComponentViewModel? ReadElement(ComponentSearchModel 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 bool Create(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(ComponentBindingModel 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;
+        }
+        private void CheckModel(ComponentBindingModel 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.Cost <= 0)
+            {
+                throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Cost));
+            }
+            _logger.LogInformation("Component. ComponentName:{ComponentName}. Cost:{Cost}. Id:{Id}", model.ComponentName, model.Cost, model.Id);
+            var element = _componentStorage.GetElement(new ComponentSearchModel
+            {
+                ComponentName = model.ComponentName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ComputerLogic.cs

@@ -0,0 +1,112 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ComputerLogic: IComputerLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComputerStorage _computerStorage;
+        public ComputerLogic(ILogger<ComputerLogic> logger, IComputerStorage computerStorage)
+        {
+            _logger = logger;
+            _computerStorage = computerStorage;
+        }
+        public List<ComputerViewModel>? ReadList(ComputerSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ComputerName:{ComputerName}. Id:{Id}", model?.ComputerName, model?.Id);
+            var list = model == null ? _computerStorage.GetFullList() : _computerStorage.GetFiltredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public ComputerViewModel? ReadElement(ComputerSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ComputerName:{ComputerName}. Id:{Id}", model.ComputerName, model.Id);
+            var element = _computerStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        public bool Create(ComputerBindingModel model)
+        {
+            CheckModel(model);
+            if (_computerStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(ComputerBindingModel model)
+        {
+            CheckModel(model);
+            if (_computerStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(ComputerBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_computerStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(ComputerBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                throw new ArgumentNullException("Нет названия компьютера", nameof(model.ComputerName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Price));
+            }
+            _logger.LogInformation("Computer. ComputerName:{ComputerName}. Cost:{Cost}. Id:{Id}", model.ComputerName, model.Price, model.Id);
+            var element = _computerStorage.GetElement(new ComputerSearchModel
+            {
+                ComputerName = model.ComputerName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Компьютер с таким названием уже есть");
+            }
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -0,0 +1,194 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BuisnessLogicsContracts;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class OrderLogic: IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+        private readonly IShopStorage _shopStorage;
+        private readonly IShopLogic _shopLogic;
+        private readonly IComputerStorage _computerStorage;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage,
+            IShopStorage shopStorage, IShopLogic shopLogic, IComputerStorage computerStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+            _shopStorage = shopStorage;
+            _shopLogic = shopLogic;
+            _computerStorage = computerStorage;
+        }
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFiltredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен)
+            {
+                _logger.LogWarning("Wrong order status. Insert operation failed");
+                return false;
+            }
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool ChangeStatus(OrderBindingModel model, OrderStatus newStatus)
+        {
+            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
+            if (viewModel == null)
+            {
+                throw new ArgumentNullException(nameof(viewModel));
+            }
+            if (viewModel.Status + 1 != newStatus)
+            {
+                _logger.LogWarning("Status change operation failed");
+                return false;
+            }
+
+            if (newStatus == OrderStatus.Готов)
+            {
+                var computer = _computerStorage.GetElement(new ComputerSearchModel() { Id = model.ComputerId });
+                if (computer == null)
+                {
+                    _logger.LogWarning("Status change error. Dress not found");
+                    return false;
+                }
+                if (!CheckSupply(computer, model.Count))
+                {
+                    _logger.LogWarning("Status change error. Shop doesnt have dresses");
+                    return false;
+                }
+            }
+            model.Status = newStatus;
+            if (model.Status == OrderStatus.Выдан)
+            {
+                model.DateImplement = DateTime.Now;
+            }
+            _orderStorage.Update(model);
+            return true;
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выполняется);
+        }
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Готов);
+        }
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выдан);
+        }
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Sum));
+            }
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("Количество изделий должно быть больше 0", nameof(model.Count));
+            }
+            if (model.DateImplement != null && model.DateImplement < model.DateCreate)
+            {
+                throw new ArithmeticException("Дата завершения не может быть раньше даты начала");
+            }
+            _logger.LogInformation("Order. Id:{Id}. Sum:{Sum}. ComputerId:{ComputerId}", model.Id, model.Sum, model.ComputerId);
+        }
+        public bool CheckSupply(IComputerModel computer, int count)
+        {
+            if (count <= 0)
+            {
+                _logger.LogWarning("Check supply operation error. Dress count < 0");
+                return false;
+            }
+            int sumCapacity = _shopStorage.GetFullList().Select(x => x.MaxCount).Sum();
+            int sumCount = _shopStorage.GetFullList().Select(x => x.ShopComputers.Select(y => y.Value.Item2).Sum()).Sum();
+            int free = sumCapacity - sumCount;
+
+            if (free < count)
+            {
+                _logger.LogWarning("Check supply error. No place for new Computers");
+                return false;
+            }
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                free = shop.MaxCount;
+                foreach (var comp in shop.ShopComputers)
+                {
+                    free -= comp.Value.Item2;
+                }
+                if (free == 0)
+                {
+                    continue;
+                }
+                if (free >= count)
+                {
+                    if (_shopLogic.SupplyComputers(new()
+                    {
+                        Id = shop.Id
+                    }, computer, count))
+                    {
+                        count = 0;
+                    }
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                else
+                {
+                    if (_shopLogic.SupplyComputers(new() { Id = shop.Id }, computer, free))
+                        count -= free;
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                if (count <= 0)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ShopLogic.cs

@@ -0,0 +1,173 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+	public class ShopLogic: IShopLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IShopStorage _shopStorage;
+
+		public ShopLogic(ILogger<ShopLogic> logger, IShopStorage shopStorage)
+		{
+			_logger = logger;
+			_shopStorage = shopStorage;
+		}
+
+		public List<ShopViewModel>? ReadList(ShopSearchModel? model)
+		{
+			_logger.LogInformation("ReadList. Id:{Id} Name:{Name}", model?.Id, model?.Name);
+			var list = model == null ? _shopStorage.GetFullList() : _shopStorage.GetFiltredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+
+		public ShopViewModel? ReadElement(ShopSearchModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. ShopName:{ShopName}. Id:{Id}", model.Name, model.Id);
+			var element = _shopStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+			return element;
+		}
+		public bool Create(ShopBindingModel model)
+		{
+			CheckModel(model);
+			if (_shopStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ShopBindingModel model)
+		{
+			CheckModel(model);
+			if (_shopStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ShopBindingModel model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete. Id:{Id}", model.Id);
+			if (_shopStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+		private void CheckModel(ShopBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (string.IsNullOrEmpty(model.ShopName))
+			{
+				throw new ArgumentNullException("Нет названия магазина", nameof(model.ShopName));
+			}
+			if (string.IsNullOrEmpty(model.Address))
+			{
+				throw new ArgumentNullException("Нет адреса магазина", nameof(model.Address));
+			}
+
+			_logger.LogInformation("Computer. ComputerName:{ComputerName}. Cost:{Cost}. Id:{Id}", model.ShopName, model.Address, model.Id);
+
+			var element = _shopStorage.GetElement(new ShopSearchModel
+			{
+				Name = model.ShopName
+			});
+			if (element != null && element.Id != model.Id)
+			{
+				throw new InvalidOperationException("Магазин с таким названием уже есть");
+			}
+		}
+		public bool MakeSell(IComputerModel model, int count)
+		{
+			return _shopStorage.SellComputers(model, count);
+		}
+
+		public bool SupplyComputers(ShopSearchModel model, IComputerModel computer, int count)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (computer == null)
+			{
+				throw new ArgumentNullException(nameof(computer));
+			}
+			if (count <= 0)
+			{
+				throw new ArgumentNullException("Количесво товара должно быть больше 0");
+			}
+
+			ShopViewModel? currentShop = _shopStorage.GetElement(model);
+			if (currentShop == null)
+			{
+				throw new ArgumentNullException(nameof(currentShop));
+			}
+			_logger.LogInformation("Make Supply. Id: {Id}. ShopName: {Name}", model.Id, model.Name);
+
+			var countItems = currentShop.ShopComputers.Select(x => x.Value.Item2).Sum();
+			if (currentShop.MaxCount - countItems < count)
+			{
+				_logger.LogWarning("Shop is full");
+				return false;
+			}
+
+			if (currentShop.ShopComputers.TryGetValue(computer.Id, out var pair))
+			{
+				currentShop.ShopComputers[computer.Id] = (pair.Item1, pair.Item2 + count);
+				_logger.LogInformation("Add computers. ComputerName: {Name}. Count: {Name}", pair.Item1, pair.Item2 + count);
+			}
+			else
+			{
+				currentShop.ShopComputers.Add(computer.Id, (computer, count));
+				_logger.LogInformation("Add new computers. ComputerName: {Name}. Count: {Name}", pair.Item1, count);
+			}
+
+			return Update(new()
+			{
+				Id = currentShop.Id,
+				ShopName = currentShop.ShopName,
+				DateOpen = currentShop.DateOpen,
+				Address = currentShop.Address,
+				MaxCount = currentShop.MaxCount,
+				ShopComputers = currentShop.ShopComputers,
+			});
+		}
+	}
+}

ComputersShop/ComputersShopBusinessLogic/ComputersShopBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class ComponentBindingModel: IComponentModel
+    {
+        public int Id { get; set; }
+        public string ComponentName { get; set; } = string.Empty;
+        public double Cost { get; set; }
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/ComputerBindingModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class ComputerBindingModel: IComputerModel
+    {
+        public int Id { get; set; }
+        public string ComputerName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents { get; set; } = new();
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class OrderBindingModel: IOrderModel
+    {
+        public int Id { get; set; }
+        public int ComputerId { 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; }
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/ShopBindingModel.cs

@@ -0,0 +1,20 @@
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+	public class ShopBindingModel: IShopModel
+	{
+		public int Id { get; set; }
+		public string ShopName { get; set; }
+		public string Address { get; set; }
+		public DateTime DateOpen { get; set; } = DateTime.Now;
+		public int MaxCount { get; set; }
+		public Dictionary<int, (IComputerModel, int)> ShopComputers{ get; set; } = new();
+	}
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/IComponentLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BuisnessLogicsContracts
+{
+    public interface IComponentLogic
+    {
+        List<ComponentViewModel>? ReadList(ComponentSearchModel? model);
+        ComponentViewModel? ReadElement(ComponentSearchModel model);
+        bool Create(ComponentBindingModel model);
+        bool Update(ComponentBindingModel model);
+        bool Delete(ComponentBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/IComputerLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BuisnessLogicsContracts
+{
+    public interface IComputerLogic
+    {
+        List<ComputerViewModel>? ReadList(ComputerSearchModel? model);
+        ComputerViewModel? ReadElement(ComputerSearchModel model);
+        bool Create(ComputerBindingModel model);
+        bool Update(ComputerBindingModel model);
+        bool Delete(ComputerBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BuisnessLogicsContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -0,0 +1,23 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BusinessLogicsContracts
+{
+	public interface IShopLogic
+	{
+		ShopViewModel? ReadElement(ShopSearchModel model);
+		List<ShopViewModel>? ReadList(ShopSearchModel? model);
+		bool Create(ShopBindingModel model);
+		bool Update(ShopBindingModel model);
+		bool Delete(ShopBindingModel model);
+		bool SupplyComputers(ShopSearchModel model, IComputerModel computer, int count);
+        bool MakeSell(IComputerModel model, int count);
+    }
+}

ComputersShop/ComputersShopContracts/ComputersShopContracts.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopContracts/SearchModels/ComponentSearchModel.cs

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

ComputersShop/ComputersShopContracts/SearchModels/ComputerSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.SearchModels
+{
+    public class ComputerSearchModel
+    {
+        public int? Id { get; set; }
+        public string? ComputerName { get; set; }
+    }
+}

ComputersShop/ComputersShopContracts/SearchModels/OrderSearchModel.cs

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

ComputersShop/ComputersShopContracts/SearchModels/ShopSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.SearchModels
+{
+	public class ShopSearchModel
+	{
+		public int? Id { get; set; }
+		public string? Name { get; set; }
+	}
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IComponentStorage.cs

@@ -0,0 +1,21 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+        List<ComponentViewModel> GetFiltredList(ComponentSearchModel model);
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+        ComponentViewModel? Insert(ComponentBindingModel model);
+        ComponentViewModel? Update(ComponentBindingModel model);
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IComputerStorage.cs

@@ -0,0 +1,21 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IComputerStorage
+    {
+        List<ComputerViewModel> GetFullList();
+        List<ComputerViewModel> GetFiltredList(ComputerSearchModel model);
+        ComputerViewModel? GetElement(ComputerSearchModel model);
+        ComputerViewModel? Insert(ComputerBindingModel model);
+        ComputerViewModel? Update(ComputerBindingModel model);
+        ComputerViewModel? Delete(ComputerBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,21 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFiltredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IShopStorage.cs

@@ -0,0 +1,23 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+	public interface IShopStorage
+	{
+		List<ShopViewModel> GetFullList();
+		List<ShopViewModel> GetFiltredList(ShopSearchModel model);
+		ShopViewModel? GetElement(ShopSearchModel model);
+		ShopViewModel? Insert(ShopBindingModel model);
+		ShopViewModel? Update(ShopBindingModel model);
+		ShopViewModel? Delete(ShopBindingModel model);
+        bool SellComputers(IComputerModel model, int count);
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ComponentViewModel: IComponentModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название компонента")]
+        public string ComponentName { get; set; } = string.Empty;
+        
+        [DisplayName("Цена")]
+        public double Cost { get; set; }
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ComputerViewModel.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ComputerViewModel: IComputerModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название компьютера")]
+        public string ComputerName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents { get; set; } = new();
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,37 @@
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class OrderViewModel: IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+
+        public int ComputerId { get; set; }
+
+        [DisplayName("Компьютер")]
+        public string ComputerName { get; set; } = string.Empty;
+
+        [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; }
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,27 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+	public class ShopViewModel: IShopModel
+	{
+		public int Id { get; set; }
+
+		[DisplayName("Название магазина")]
+		public string ShopName { get; set; } = string.Empty;
+
+		[DisplayName("Адресс")]
+		public string Address { get; set; } = string.Empty;
+		[DisplayName("Дата открытия")]
+		public DateTime DateOpen { get; set; } = DateTime.Now;
+        [DisplayName("Макс кол-во компьютеров")]
+        public int MaxCount { get; set; }
+
+        public Dictionary<int, (IComputerModel, int)> ShopComputers { get; set; } = new();
+	}
+}

ComputersShop/ComputersShopDataModels/ComputersShopDataModels.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Update="IId.cs">
+      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
+    </Compile>
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+        Принят = 0,
+        Выполняется = 1,
+        Готов = 2,
+        Выдан = 3
+    }
+}

ComputersShop/ComputersShopDataModels/IId.cs

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

ComputersShop/ComputersShopDataModels/Models/IComponentModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Models
+{
+    public interface IComponentModel: IId
+    {
+        string ComponentName { get; }
+        double Cost { get; }
+    }
+}

ComputersShop/ComputersShopDataModels/Models/IComputerModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Models
+{
+    public interface IComputerModel: IId
+    {
+        string ComputerName { get; }
+        double Price { get; }
+        Dictionary<int, (IComponentModel, int)> ComputerComponents { get; }
+    }
+}

ComputersShop/ComputersShopDataModels/Models/IOrderModel.cs

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

ComputersShop/ComputersShopDataModels/Models/IShopModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Models
+{
+	public interface IShopModel: IId
+	{
+		string ShopName { get; }
+		string Address { get; }
+		DateTime DateOpen { get; }
+		int MaxCount { get; }
+	}
+}

ComputersShop/ComputersShopListImplement/ComputersShopListImplements.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopListImplement/DataListSingleton.cs

@@ -0,0 +1,33 @@
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement
+{
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+        public  List<Component> Components { get; set; }
+        public List<Order> Orders { get; set; }
+        public List<Computer> Computers { get; set; }
+		public List<Shop> Shops { get; set; }
+		private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Computers = new List<Computer>();
+            Shops = new List<Shop>();
+        }
+        public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,107 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+    public class ComponentStorage: IComponentStorage
+    {
+        private readonly DataListSingleton _source;
+        public ComponentStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            var result = new List<ComponentViewModel>();
+            foreach (var component in _source.Components)
+            {
+                result.Add(component.GetViewModel);
+            }
+            return result;
+        }
+        public List<ComponentViewModel> GetFiltredList(ComponentSearchModel model)
+        {
+            var result = new List<ComponentViewModel>();
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return result;
+            }
+            foreach (var component in _source.Components)
+            {
+                if (component.ComponentName.Contains(model.ComponentName))
+                {
+                    result.Add(component.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach(var component in _source.Components)
+            {
+                if ( (!string.IsNullOrEmpty(model.ComponentName) 
+                    && component.ComponentName == model.ComponentName) 
+                    || (model.Id.HasValue && component.Id == model.Id))
+                {
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var component in _source.Components)
+            {
+                if (model.Id <= component.Id)
+                {
+                    model.Id = component.Id + 1;
+                }
+            }
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            _source.Components.Add(newComponent);
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            foreach (var component in _source.Components)
+            {
+                if (component.Id == model.Id)
+                {
+                    component.Update(model);
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            for (int i = 0; i < _source.Components.Count; ++i)
+            {
+                if (_source.Components[i].Id == model.Id)
+                {
+                    var element = _source.Components[i];
+                    _source.Components.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ComputerStorage.cs

@@ -0,0 +1,107 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+    public class ComputerStorage: IComputerStorage
+    {
+        private readonly DataListSingleton _source;
+        public ComputerStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<ComputerViewModel> GetFullList()
+        {
+            var result = new List<ComputerViewModel>();
+            foreach (var computer in _source.Computers)
+            {
+                result.Add(computer.GetViewModel);
+            }
+            return result;
+        }
+        public List<ComputerViewModel> GetFiltredList(ComputerSearchModel model)
+        {
+            var result = new List<ComputerViewModel>();
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                return result;
+            }
+            foreach (var computer in _source.Computers)
+            {
+                if (computer.ComputerName.Contains(model.ComputerName))
+                {
+                    result.Add(computer.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public ComputerViewModel? GetElement(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var computer in _source.Computers)
+            {
+                if ((!string.IsNullOrEmpty(model.ComputerName)
+                    && computer.ComputerName == model.ComputerName)
+                    || (model.Id.HasValue && computer.Id == model.Id))
+                {
+                    return computer.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var computer in _source.Computers)
+            {
+                if (model.Id <= computer.Id)
+                {
+                    model.Id = computer.Id + 1;
+                }
+            }
+            var newComputer = Computer.Create(model);
+            if (newComputer == null)
+            {
+                return null;
+            }
+            _source.Computers.Add(newComputer);
+            return newComputer.GetViewModel;
+        }
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            foreach (var computer in _source.Computers)
+            {
+                if (computer.Id == model.Id)
+                {
+                    computer.Update(model);
+                    return computer.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            for (int i = 0; i < _source.Computers.Count; ++i)
+            {
+                if (_source.Computers[i].Id == model.Id)
+                {
+                    var element = _source.Computers[i];
+                    _source.Computers.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,114 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+    public class OrderStorage: IOrderStorage
+    {
+        private readonly DataListSingleton _source;
+        public OrderStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            var result = new List<OrderViewModel>();
+            foreach (var order in _source.Orders)
+            {
+                result.Add(AddComputerName(order.GetViewModel));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFiltredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (model == null || !model.Id.HasValue)
+            {
+                return result;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    result.Add(AddComputerName(order.GetViewModel));
+                }
+            }
+            return result;
+        }
+        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 AddComputerName(order.GetViewModel);
+                }
+            }
+            return null;
+        }
+        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 AddComputerName(newOrder.GetViewModel);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    order.Update(model);
+                    return AddComputerName(order.GetViewModel);
+                }
+            }
+            return null;
+        }
+        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 AddComputerName(element.GetViewModel);
+                }
+            }
+            return null;
+        }
+        private OrderViewModel AddComputerName(OrderViewModel model)
+        {
+            var selectedComputer = _source.Computers.Find(computer => computer.Id == model.ComputerId);
+            if (selectedComputer != null)
+            {
+                model.ComputerName = selectedComputer.ComputerName;
+            }
+            return model;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ShopStorage.cs

@@ -0,0 +1,115 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+	public class ShopStorage: IShopStorage
+	{
+		private readonly DataListSingleton _source;
+		public ShopStorage()
+		{
+			_source = DataListSingleton.GetInstance();
+		}
+		public List<ShopViewModel> GetFullList()
+		{
+			var result = new List<ShopViewModel>();
+			foreach (var shop in _source.Shops)
+			{
+				result.Add(shop.GetViewModel);
+			}
+			return result;
+		}
+		public List<ShopViewModel> GetFiltredList(ShopSearchModel model)
+		{
+			var result = new List<ShopViewModel>();
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				return result;
+			}
+			foreach (var shop in _source.Shops)
+			{
+				if (shop.ShopName.Contains(model.Name))
+				{
+					result.Add(shop.GetViewModel);
+				}
+			}
+			return result;
+		}
+		public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var shop in _source.Shops)
+            {
+                if ((!string.IsNullOrEmpty(model.Name)
+                    && shop.ShopName == model.Name) || (model.Id.HasValue && shop.Id == model.Id))
+                {
+                    return shop.GetViewModel;
+                }
+            }
+            return null;
+        }
+		public ShopViewModel? Insert(ShopBindingModel model)
+		{
+			model.Id = 1;
+			foreach (var shop in _source.Shops)
+			{
+				if (model.Id <= shop.Id)
+				{
+					model.Id = shop.Id + 1;
+				}
+			}
+			var newShop = Shop.Create(model);
+			if (newShop == null)
+			{
+				return null;
+			}
+			_source.Shops.Add(newShop);
+			return newShop.GetViewModel;
+		}
+		public ShopViewModel? Update(ShopBindingModel model)
+		{
+			foreach (var shop in _source.Shops)
+			{
+				if (shop.Id == model.Id)
+				{
+					shop.Update(model);
+					return shop.GetViewModel;
+				}
+			}
+			return null;
+		}
+		public ShopViewModel? Delete(ShopBindingModel model)
+		{
+			for (int i = 0; i < _source.Shops.Count; ++i)
+			{
+				if (_source.Shops[i].Id == model.Id)
+				{
+					var element = _source.Shops[i];
+					_source.Shops.RemoveAt(i);
+					return element.GetViewModel;
+				}
+			}
+			return null;
+		}
+        public bool CheckAvailability(int computerId, int count)
+        {
+            return true;
+        }
+        public bool SellComputers(IComputerModel model, int count)
+        {
+            return true;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Component.cs

@@ -0,0 +1,47 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost,
+            };
+        }
+        public void Update(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost,
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Computer.cs

@@ -0,0 +1,50 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Computer: IComputerModel
+    {
+        public int Id { get; private set; }
+        public string ComputerName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents { get; private set; } = new Dictionary<int, (IComponentModel, int)>();
+        public static Computer? Create(ComputerBindingModel? model) 
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = model.Id,
+                ComputerName = model.ComputerName,
+                Price = model.Price,
+                ComputerComponents = model.ComputerComponents
+            };
+        }
+        public void Update(ComputerBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComputerName = model.ComputerName;
+            Price = model.Price;
+            ComputerComponents = model.ComputerComponents;
+        }
+        public ComputerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerName = ComputerName,
+            Price = Price,
+            ComputerComponents = ComputerComponents
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Order.cs

@@ -0,0 +1,60 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Order: IOrderModel
+    {
+        public int Id { get; private set; }
+        public int ComputerId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set;}
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                ComputerId = model.ComputerId,
+                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,
+            ComputerId = ComputerId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Shop.cs

@@ -0,0 +1,60 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+	public class Shop: IShopModel
+	{
+		public int Id { get; private set; }
+        public string ShopName { get; private set; }
+        public string Address { get; private set; }
+        public DateTime DateOpen { get; private set; }
+        public int MaxCount { get; private set; }
+        public Dictionary<int, (IComputerModel, int)> ShopComputers { get; private set; } = new();
+
+		public static Shop? Create(ShopBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new Shop()
+			{
+				Id = model.Id,
+				ShopName = model.ShopName,
+				Address = model.Address,
+				DateOpen = model.DateOpen,
+				MaxCount = model.MaxCount,
+				ShopComputers = new()
+			};
+		} 
+		public void Update(ShopBindingModel model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			ShopName = model.ShopName;
+			Address = model.Address;
+			DateOpen = model.DateOpen;
+            MaxCount = model.MaxCount;
+			ShopComputers = model.ShopComputers;
+		}
+
+		public ShopViewModel GetViewModel => new()
+		{
+			Id = Id,
+			ShopName = ShopName,
+			Address = Address,
+			DateOpen = DateOpen,
+            MaxCount = MaxCount,
+            ShopComputers = ShopComputers
+		};
+	}
+}