LawFirm/AbstractLawFirmBusinessLogic/BusinessLogic/OrderLogic.cs

@@ -4,6 +4,7 @@ using AbstractLawFirmContracts.SearchModels;
 using AbstractLawFirmContracts.StoragesContracts;
 using AbstractLawFirmContracts.ViewModels;
 using AbstractLawFirmDataModels.Enums;
+using AbstractLawFirmDataModels.Models;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -17,11 +18,17 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
     {
         private readonly ILogger _logger;
         private readonly IOrderStorage _orderStorage;
+        private readonly IShopStorage _shopStorage;
+        private readonly IShopLogic _shopLogic;
+        private readonly IDocumentStorage _documentStorage;
 
-        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IShopLogic shopLogic, IDocumentStorage documentStorage, IShopStorage shopStorage)
         {
             _logger = logger;
             _orderStorage = orderStorage;
+            _shopLogic = shopLogic;
+            _documentStorage = documentStorage;
+            _shopStorage = shopStorage;
         }
 
         public List<OrderViewModel>? ReadList(OrderSearchModel? model)
@@ -45,6 +52,7 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
             model.Status = OrderStatus.Принят;
             if (_orderStorage.Insert(model) == null)
             {
+                model.Status = OrderStatus.Неизвестен;
                 _logger.LogWarning("Insert operation failed");
                 return false;
             }
@@ -53,7 +61,7 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
 
         public bool ChangeStatus(OrderBindingModel model, OrderStatus status)
         {
-            CheckModel(model);
+            CheckModel(model, false);
             var element = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
             if (element == null)
             {
@@ -65,9 +73,31 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
                 _logger.LogWarning("Status change operation failed");
                 throw new InvalidOperationException("Текущий статус заказа не может быть переведен в выбранный");
             }
+            if (status == OrderStatus.Готов)
+            {
+                var document = _documentStorage.GetElement(new DocumentSearchModel() { Id = model.DocumentId });
+                if (document == null)
+                {
+                    _logger.LogWarning("Status change operation failed. Car not found.");
+                    return false;
+                }
+
+                if (!CheckThenSupplyMany(document, model.Count))
+                {
+                    _logger.LogWarning("Status change operation failed. Shop supply error.");
+                    return false;
+                }
+            }
+
             model.Status = status;
             if (model.Status == OrderStatus.Выдан) model.DateImplement = DateTime.Now;
             _orderStorage.Update(model);
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
             return true;
         }
 
@@ -97,6 +127,10 @@ true)
             {
                 return;
             }
+            if (model.DocumentId < 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор документа", nameof(model.DocumentId));
+            }
             if (model.Sum <= 0)
             {
                 throw new ArgumentNullException("Цена заказа должна быть больше 0", nameof(model.Sum));
@@ -107,5 +141,67 @@ true)
             }
             _logger.LogInformation("Order. Sum:{ Cost}. Id: { Id}", model.Sum, model.Id);
         }
+        public bool CheckThenSupplyMany(IDocumentModel document, int count)
+        {
+            if (count <= 0)
+            {
+                _logger.LogWarning("Check then supply operation error. Car count < 0.");
+                return false;
+            }
+
+            int freeSpace = 0;
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                freeSpace += shop.MaxCountDocuments;
+                foreach (var c in shop.ShopDocuments)
+                {
+                    freeSpace -= c.Value.Item2;
+                }
+            }
+
+            if (freeSpace < count)
+            {
+                _logger.LogWarning("Check then supply operation error. There's no place for new cars in shops.");
+                return false;
+            }
+
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                freeSpace = shop.MaxCountDocuments;
+
+                foreach (var c in shop.ShopDocuments)
+                    freeSpace -= c.Value.Item2;
+
+                if (freeSpace <= 0)
+                    continue;
+
+                if (freeSpace >= count)
+                {
+                    if (_shopLogic.SupplyDocuments(new ShopSearchModel() { Id = shop.Id }, document, count))
+                        count = 0;
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                if (freeSpace < count)
+                {
+                    if (_shopLogic.SupplyDocuments(new ShopSearchModel() { Id = shop.Id }, document, freeSpace))
+                        count -= freeSpace;
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                if (count <= 0)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
     }
-}
+}

LawFirm/AbstractLawFirmBusinessLogic/BusinessLogic/ShopLogic.cs

@@ -113,25 +113,37 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
             }
             _logger.LogInformation("AddPlaneInShop find. Id:{Id}", element.Id);
 
-            if (element.ShopDocuments.TryGetValue(document.Id, out var pair))
-            {
-                element.ShopDocuments[document.Id] = (document, count + pair.Item2);
-                _logger.LogInformation("AddPlaneInShop. Added {count} {plane} to '{ShopName}' shop", count, document.DocumentName, element.ShopName);
-            }
+			int countDocuments = 0;
+			foreach (var c in element.ShopDocuments)
+				countDocuments += c.Value.Item2;
+			if (count > element.MaxCountDocuments - countDocuments)
+			{
+				_logger.LogWarning("Required shop will be overflowed");
+				return false;
+			}
             else
             {
-                element.ShopDocuments[document.Id] = (document, count);
-                _logger.LogInformation("AddPlaneInShop. Added {count} new plane {plane} to '{ShopName}' shop", count, document.DocumentName, element.ShopName);
-            }
+				if (element.ShopDocuments.TryGetValue(document.Id, out var pair))
+				{
+					element.ShopDocuments[document.Id] = (document, count + pair.Item2);
+					_logger.LogInformation("AddPlaneInShop. Added {count} {plane} to '{ShopName}' shop", count, document.DocumentName, element.ShopName);
+				}
+				else
+				{
+					element.ShopDocuments[document.Id] = (document, count);
+					_logger.LogInformation("AddPlaneInShop. Added {count} new plane {plane} to '{ShopName}' shop", count, document.DocumentName, element.ShopName);
+				}
+			}
 
-            _shopStorage.Update(new()
-            {
-                Id = element.Id,
-                Address = element.Address,
-                ShopName = element.ShopName,
-                OpeningDate = element.OpeningDate,
-                ShopDocuments = element.ShopDocuments
-            });
+			_shopStorage.Update(new()
+			{
+				Id = element.Id,
+				Address = element.Address,
+				ShopName = element.ShopName,
+				MaxCountDocuments = element.MaxCountDocuments,
+				OpeningDate = element.OpeningDate,
+				ShopDocuments = element.ShopDocuments
+			});
             return true;
         }
         private void CheckModel(ShopBindingModel model, bool withParams = true)
@@ -158,5 +170,9 @@ namespace AbstractLawFirmBusinessLogic.BusinessLogic
                 throw new InvalidOperationException("Магазин с таким названием уже есть");
             }
         }
-    }
+		public bool SellDocument(IDocumentModel document, int count)
+		{
+			return _shopStorage.SellDocument(document, count);
+		}
+	}
 }

LawFirm/AbstractLawFirmContracts/AbstractLawFirmContracts/BindingModels/ShopBindingModel.cs

@@ -22,5 +22,6 @@ namespace AbstractLawFirmContracts.BindingModels
             get;
             set;
         } = new();
-    }
+		public int MaxCountDocuments { get; set; }
+	}
 }

LawFirm/AbstractLawFirmContracts/AbstractLawFirmContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -18,5 +18,6 @@ namespace AbstractLawFirmContracts.BusinessLogicsContracts
         bool Update(ShopBindingModel model);
         bool Delete(ShopBindingModel model);
         bool SupplyDocuments(ShopSearchModel model, IDocumentModel document, int count);
-    }
+		bool SellDocument(IDocumentModel document, int count);
+	}
 }

LawFirm/AbstractLawFirmContracts/AbstractLawFirmContracts/StoragesContracts/IShopStorage.cs

@@ -1,6 +1,7 @@
 using AbstractLawFirmContracts.BindingModels;
 using AbstractLawFirmContracts.SearchModels;
 using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -17,5 +18,6 @@ namespace AbstractLawFirmContracts.StoragesContracts
         ShopViewModel? Insert(ShopBindingModel model);
         ShopViewModel? Update(ShopBindingModel model);
         ShopViewModel? Delete(ShopBindingModel model);
-    }
+		bool SellDocument(IDocumentModel model, int count);
+	}
 }

LawFirm/AbstractLawFirmContracts/AbstractLawFirmContracts/ViewModels/ShopViewModel.cs

@@ -25,5 +25,7 @@ namespace AbstractLawFirmContracts.ViewModels
             get;
             set;
         } = new();
-    }
+		[DisplayName("Максимальное количество пакетов документов в магазине")]
+		public int MaxCountDocuments { get; set; }
+	}
 }

LawFirm/AbstractLawFirmDataModels/AbstractLawFirmDataModels/Models/IShopModel.cs

@@ -12,5 +12,6 @@ namespace AbstractLawFirmDataModels.Models
         String Address { get; }
         DateTime OpeningDate { get; }
         Dictionary<int, (IDocumentModel, int)> ShopDocuments { get; }
-    }
+		int MaxCountDocuments { get; }
+	}
 }

LawFirm/AbstractLawFirmFileImpliment/AbstractLawFirmFileImplement.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="..\AbstractLawFirmContracts\AbstractLawFirmContracts\AbstractLawFirmContracts.csproj" />
+    <ProjectReference Include="..\AbstractLawFirmDataModels\AbstractLawFirmDataModels\AbstractLawFirmDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

LawFirm/AbstractLawFirmFileImpliment/DataFileSingleton.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+using AbstractLawFirmFileImplement.Models;
+
+namespace AbstractLawFirmFileImpliment
+{
+	internal class DataFileSingleton
+	{
+		private static DataFileSingleton? instance;
+		private readonly string ComponentFileName = "Component.xml";
+		private readonly string OrderFileName = "Order.xml";
+		private readonly string DocumentFileName = "Document.xml";
+		private readonly string ShopFileName = "Shop.xml";
+
+		public List<Component> Components { get; private set; }
+		public List<Order> Orders { get; private set; }
+		public List<Document> Documents { 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 SaveDocuments() => SaveData(Documents, DocumentFileName, "Documents", 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)!)!;
+			Documents = LoadData(DocumentFileName, "Document", x => Document.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);
+			}
+
+		}
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Implements/ComponentStorage.cs

@@ -0,0 +1,80 @@
+using AbstractLawFirmContracts.BindingModels.BindingModels;
+using AbstractLawFirmContracts.SearchModels;
+using AbstractLawFirmContracts.StoragesContracts;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmFileImplement.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractLawFirmFileImplement.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> GetFilteredList(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;
+		}
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Implements/DocumentStorage.cs

@@ -0,0 +1,84 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.SearchModels;
+using AbstractLawFirmContracts.StoragesContracts;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmFileImplement.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractLawFirmFileImplement.Implements
+{
+	public class DocumentStorage : IDocumentStorage
+	{
+		private readonly DataFileSingleton source;
+
+		public DocumentStorage()
+		{
+			source = DataFileSingleton.GetInstance();
+		}
+
+		public DocumentViewModel? GetElement(DocumentSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.DocumentName) && !model.Id.HasValue)
+			{
+				return null;
+			}
+			return source.Documents.FirstOrDefault(x => (!string.IsNullOrEmpty(model.DocumentName) && x.DocumentName == model.DocumentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+		}
+
+		public List<DocumentViewModel> GetFilteredList(DocumentSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.DocumentName))
+			{
+				return new();
+			}
+			return source.Documents.Where(x => x.DocumentName.Contains(model.DocumentName)).Select(x => x.GetViewModel).ToList();
+		}
+
+		public List<DocumentViewModel> GetFullList()
+		{
+			return source.Documents.Select(x => x.GetViewModel).ToList();
+		}
+
+		public DocumentViewModel? Insert(DocumentBindingModel model)
+		{
+			model.Id = source.Documents.Count > 0 ? source.Documents.Max(x => x.Id) + 1 : 1;
+			var newDoc = Document.Create(model);
+			if (newDoc == null)
+			{
+				return null;
+			}
+			source.Documents.Add(newDoc);
+			source.SaveDocuments();
+			return newDoc.GetViewModel;
+		}
+
+		public DocumentViewModel? Update(DocumentBindingModel model)
+		{
+			var document = source.Documents.FirstOrDefault(x => x.Id == model.Id);
+			if (document == null)
+			{
+				return null;
+			}
+			document.Update(model);
+			source.SaveDocuments();
+			return document.GetViewModel;
+		}
+		public DocumentViewModel? Delete(DocumentBindingModel model)
+		{
+			var document = source.Documents.FirstOrDefault(x => x.Id == model.Id);
+			if (document == null)
+			{
+				return null;
+			}
+			source.Documents.Remove(document);
+			source.SaveDocuments();
+			return document.GetViewModel;
+		}
+
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Implements/OrderStorage.cs

@@ -0,0 +1,94 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.SearchModels;
+using AbstractLawFirmContracts.StoragesContracts;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmFileImplement.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractLawFirmFileImplement.Implements
+{
+	public class OrderStorage : IOrderStorage
+	{
+		private readonly DataFileSingleton source;
+
+		public OrderStorage()
+		{
+			source = DataFileSingleton.GetInstance();
+		}
+
+		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 List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+		{
+			if (!model.Id.HasValue)
+			{
+				return new();
+			}
+			return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+		}
+
+		public List<OrderViewModel> GetFullList()
+		{
+			return source.Orders.Select(x => GetViewModel(x)).ToList();
+		}
+
+		public OrderViewModel? Insert(OrderBindingModel model)
+		{
+			model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+			var newOrder = Order.Create(model);
+			if (newOrder == null)
+			{
+				return null;
+			}
+			source.Orders.Add(newOrder);
+			source.SaveOrders();
+			return GetViewModel(newOrder);
+		}
+
+		public OrderViewModel? Update(OrderBindingModel model)
+		{
+			var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+			if (order == null)
+			{
+				return null;
+			}
+			order.Update(model);
+			source.SaveOrders();
+			return GetViewModel(order);
+		}
+		public OrderViewModel? Delete(OrderBindingModel model)
+		{
+			var 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 document = source.Documents.FirstOrDefault(x => x.Id == order.DocumentId);
+			if (document != null)
+			{
+				viewModel.DocumentName = document.DocumentName;
+			}
+			return viewModel;
+		}
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Implements/ShopStorage.cs

@@ -0,0 +1,135 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.SearchModels;
+using AbstractLawFirmContracts.StoragesContracts;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Models;
+using AbstractLawFirmFileImplement.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractLawFirmFileImplement.Implements
+{
+	public class ShopStorage : IShopStorage
+	{
+		private readonly DataFileSingleton source;
+		public ShopStorage()
+		{
+			source = DataFileSingleton.GetInstance();
+		}
+		public ShopViewModel? GetElement(ShopSearchModel model)
+		{
+			if (!model.Id.HasValue)
+			{
+				return null;
+			}
+			return source.Shops.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+		}
+
+		public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.ShopName))
+			{
+				return new();
+			}
+			return source.Shops
+				.Select(x => x.GetViewModel)
+				.Where(x => x.ShopName.Contains(model.ShopName ?? string.Empty))
+				.ToList();
+		}
+
+		public List<ShopViewModel> GetFullList()
+		{
+			return source.Shops.Select(shop => shop.GetViewModel).ToList();
+		}
+
+		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.SaveShops();
+			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.SaveShops();
+			return shop.GetViewModel;
+		}
+		public ShopViewModel? Delete(ShopBindingModel model)
+		{
+			var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+			if (shop == null)
+			{
+				return null;
+			}
+			source.Shops.Remove(shop);
+			source.SaveShops();
+			return shop.GetViewModel;
+		}
+
+		public bool SellDocument(IDocumentModel model, int count)
+		{
+			var document = source.Documents.FirstOrDefault(x => x.Id == model.Id);
+
+			if (document == null)
+			{
+				return false;
+			}
+
+
+			var shopDocuments = source.Shops.SelectMany(shop => shop.ShopDocuments.Where(c => c.Value.Item1.Id == document.Id));
+
+            int countStore = shopDocuments.Sum(it => it.Value.Item2);
+
+            if (count > countStore)
+				return false;
+
+			foreach (var shop in source.Shops)
+			{
+				var documents = shop.ShopDocuments;
+
+				foreach (var c in documents.Where(x => x.Value.Item1.Id == document.Id))
+				{
+					int min = Math.Min(c.Value.Item2, count);
+					documents[c.Value.Item1.Id] = (c.Value.Item1, c.Value.Item2 - min);
+					count -= min;
+
+					if (count <= 0)
+						break;
+				}
+
+				shop.Update(new ShopBindingModel
+				{
+					Id = shop.Id,
+					ShopName = shop.ShopName,
+					Address = shop.Address,
+					MaxCountDocuments = shop.MaxCountDocuments,
+					OpeningDate = shop.OpeningDate,
+					ShopDocuments = documents
+				});
+
+				source.SaveShops();
+
+				if (count <= 0)
+					return true;
+			}
+
+			return true;
+		}
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Models/Component.cs

@@ -0,0 +1,64 @@
+using AbstractLawFirmContracts.BindingModels.BindingModels;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractLawFirmFileImplement.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()));
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Models/Document.cs

@@ -0,0 +1,91 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractLawFirmFileImplement.Models
+{
+	public class Document : IDocumentModel
+	{
+		public int Id { get; private set; }
+		public string DocumentName { 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)>? _documentComponents = null;
+		public Dictionary<int, (IComponentModel, int)> DocumentComponents
+		{
+			get
+			{
+				if (_documentComponents == null)
+				{
+					var source = DataFileSingleton.GetInstance();
+					_documentComponents = Components.ToDictionary(x => x.Key, y =>
+					((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+					y.Value));
+				}
+				return _documentComponents;
+			}
+		}
+		public static Document? Create(DocumentBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new Document()
+			{
+				Id = model.Id,
+				DocumentName = model.DocumentName,
+				Price = model.Price,
+				Components = model.DocumentComponents.ToDictionary(x => x.Key, x
+			   => x.Value.Item2)
+			};
+		}
+		public static Document? Create(XElement element)
+		{
+			if (element == null)
+			{
+				return null;
+			}
+			return new Document()
+			{
+				Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+				DocumentName = element.Element("DocumentName")!.Value,
+				Price = Convert.ToDouble(element.Element("Price")!.Value),
+				Components = element.Element("DocumentComponents")!.Elements("DocumentComponent").ToDictionary(x =>
+		   Convert.ToInt32(x.Element("Key")?.Value), x =>
+		   Convert.ToInt32(x.Element("Value")?.Value))
+			};
+		}
+		public void Update(DocumentBindingModel model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			DocumentName = model.DocumentName;
+			Price = model.Price;
+			Components = model.DocumentComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+			_documentComponents = null;
+		}
+		public DocumentViewModel GetViewModel => new()
+		{
+			Id = Id,
+			DocumentName = DocumentName,
+			Price = Price,
+			DocumentComponents = DocumentComponents
+		};
+		public XElement GetXElement => new("Document",
+		new XAttribute("Id", Id),
+		new XElement("DocumentName", DocumentName),
+		new XElement("Price", Price.ToString()),
+		new XElement("DocumentComponents", Components.Select(x =>
+		new XElement("DocumentComponent", new XElement("Key", x.Key), new XElement("Value", x.Value))).ToArray()));
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Models/Order.cs

@@ -0,0 +1,99 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Enums;
+using AbstractLawFirmDataModels.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 AbstractLawFirmFileImplement.Models
+{
+	public class Order : IOrderModel
+	{
+		public int DocumentId { 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 int Id { get; private set; }
+
+		public static Order? Create(OrderBindingModel? model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new Order
+			{
+				DocumentId = model.DocumentId,
+				Count = model.Count,
+				Sum = model.Sum,
+				Status = model.Status,
+				DateCreate = model.DateCreate,
+				DateImplement = model.DateImplement,
+				Id = model.Id,
+			};
+		}
+
+		public static Order? Create(XElement element)
+		{
+			if (element == null)
+			{
+				return null;
+			}
+			return new Order()
+			{
+				Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+				DocumentId = Convert.ToInt32(element.Element("DocumentId")!.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()
+		{
+			DocumentId = DocumentId,
+			Count = Count,
+			Sum = Sum,
+			DateCreate = DateCreate,
+			DateImplement = DateImplement,
+			Id = Id,
+			Status = Status,
+		};
+
+		public XElement GetXElement => new(
+			"Order",
+			 new XAttribute("Id", Id),
+			 new XElement("DocumentId", DocumentId.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())
+		);
+	}
+}

LawFirm/AbstractLawFirmFileImpliment/Models/Shop.cs

@@ -0,0 +1,114 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.ViewModels;
+using AbstractLawFirmDataModels.Models;
+using AbstractLawFirmFileImpliment;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractLawFirmFileImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        public string ShopName { get; private set; } = string.Empty;
+        public string Address { get; private set; } = string.Empty;
+        public int MaxCountDocuments { get; private set; }
+        public DateTime OpeningDate { get; private set; }
+        public Dictionary<int, int> Documents { get; private set; } = new();
+        private Dictionary<int, (IDocumentModel, int)>? _shopDocuments = null;
+        public Dictionary<int, (IDocumentModel, int)> ShopDocuments
+        {
+            get
+            {
+                if (_shopDocuments == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _shopDocuments = Documents.ToDictionary(
+                        x => x.Key,
+                        y => ((source.Documents.FirstOrDefault(z => z.Id == y.Key) as IDocumentModel)!, y.Value)
+                    );
+                }
+                return _shopDocuments;
+            }
+        }
+        public static Shop? Create(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                MaxCountDocuments = model.MaxCountDocuments,
+                OpeningDate = model.OpeningDate,
+                Documents = model.ShopDocuments.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),
+                ShopName = element.Element("ShopName")!.Value,
+                Address = element.Element("Address")!.Value,
+                MaxCountDocuments = Convert.ToInt32(element.Element("MaxCountDocuments")!.Value),
+                OpeningDate = Convert.ToDateTime(element.Element("OpeningDate")!.Value),
+                Documents = element.Element("ShopDocuments")!.Elements("ShopDocument").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;
+            MaxCountDocuments = model.MaxCountDocuments;
+            OpeningDate = model.OpeningDate;
+            if (model.ShopDocuments.Count > 0)
+            {
+                Documents = model.ShopDocuments.ToDictionary(x => x.Key, x => x.Value.Item2);
+                _shopDocuments = null;
+            }
+        }
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            MaxCountDocuments = MaxCountDocuments,
+            OpeningDate = OpeningDate,
+            ShopDocuments = ShopDocuments,
+        };
+
+        public XElement GetXElement => new(
+        "Shop",
+             new XAttribute("Id", Id),
+             new XElement("ShopName", ShopName),
+             new XElement("Address", Address),
+             new XElement("MaxCountDocuments", MaxCountDocuments),
+             new XElement("OpeningDate", OpeningDate.ToString()),
+             new XElement("ShopDocuments", Documents.Select(x =>
+             new XElement("ShopDocument",
+             new XElement("Key", x.Key),
+             new XElement("Value", x.Value)))
+            .ToArray()));
+    }
+}

LawFirm/AbstractLawFirmListImplement/Implements/ShopStorage.cs

@@ -3,6 +3,7 @@ using AbstractLawFirmContracts.SearchModels;
 using AbstractLawFirmContracts.StoragesContracts;
 using AbstractLawFirmContracts.ViewModels;
 using AbstractLawFirmListImplement.Models;
+using AbstractLawFirmDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -19,7 +20,10 @@ namespace AbstractLawFirmListImplement.Implements
         {
             _source = DataListSingleton.GetInstance();
         }
-
+        public bool SellDocument(IDocumentModel document, int count)
+        {
+            throw new NotImplementedException();
+        }
         public ShopViewModel? GetElement(ShopSearchModel model)
         {
             if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)

LawFirm/AbstractLawFirmListImplement/Models/Shop.cs

@@ -14,6 +14,7 @@ namespace AbstractLawFirmListImplement.Models
         public int Id { get; private set; }
         public string ShopName { get; private set; } = string.Empty;
         public string Address { get; private set; } = string.Empty;
+        public int MaxCountDocuments { get; private set; }
         public DateTime OpeningDate { get; private set; }
         public Dictionary<int, (IDocumentModel, int)> ShopDocuments
         {

LawFirm/LawFirm.sln

@@ -9,9 +9,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractLawFirmDataModels",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractLawFirmContracts", "AbstractLawFirmContracts\AbstractLawFirmContracts\AbstractLawFirmContracts.csproj", "{C0155B2E-5974-4835-996B-6FDF0F5BC06B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractLawFirmBusinessLogic", "AbstractLawFirmBusinessLogic\AbstractLawFirmBusinessLogic.csproj", "{E48808B1-5381-4774-97B6-CDB107DCF98C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractLawFirmBusinessLogic", "AbstractLawFirmBusinessLogic\AbstractLawFirmBusinessLogic.csproj", "{E48808B1-5381-4774-97B6-CDB107DCF98C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractLawFirmListImplement", "AbstractLawFirmListImplement\AbstractLawFirmListImplement.csproj", "{86D5FC6F-B262-44A0-9D30-970F9EA93E0A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractLawFirmListImplement", "AbstractLawFirmListImplement\AbstractLawFirmListImplement.csproj", "{86D5FC6F-B262-44A0-9D30-970F9EA93E0A}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractLawFirmFileImplement", "AbstractLawFirmFileImpliment\AbstractLawFirmFileImplement.csproj", "{8AF960C2-208F-4B7B-9F8B-36B63446B6B7}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -39,6 +41,10 @@ Global
 		{86D5FC6F-B262-44A0-9D30-970F9EA93E0A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{86D5FC6F-B262-44A0-9D30-970F9EA93E0A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{86D5FC6F-B262-44A0-9D30-970F9EA93E0A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8AF960C2-208F-4B7B-9F8B-36B63446B6B7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8AF960C2-208F-4B7B-9F8B-36B63446B6B7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8AF960C2-208F-4B7B-9F8B-36B63446B6B7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8AF960C2-208F-4B7B-9F8B-36B63446B6B7}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

LawFirm/LawFirmView/FormMain.cs

@@ -126,7 +126,7 @@ namespace LawFirmView
                 catch (Exception ex)
                 {
                     _logger.LogError(ex, "Ошибка отметки о готовности заказа");
-                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 }
             }
 
@@ -193,5 +193,14 @@ namespace LawFirmView
                 form.ShowDialog();
             }
         }
+
+        private void buttonSellDocs_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSellDocuments));
+            if (service is FormSellDocuments form)
+            {
+                form.ShowDialog();
+            }
+        }
     }
 }

LawFirm/LawFirmView/FormMain.designer.cs

@@ -40,6 +40,7 @@
             buttonIssuedOrder = new Button();
             buttonRef = new Button();
             buttonSupplyShop = new Button();
+            buttonSellDocs = new Button();
             menuStrip1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
@@ -160,11 +161,23 @@
             buttonSupplyShop.UseVisualStyleBackColor = true;
             buttonSupplyShop.Click += buttonSupplyShop_Click;
             // 
+            // buttonSellDocs
+            // 
+            buttonSellDocs.Location = new Point(850, 289);
+            buttonSellDocs.Margin = new Padding(3, 4, 3, 4);
+            buttonSellDocs.Name = "buttonSellDocs";
+            buttonSellDocs.Size = new Size(178, 31);
+            buttonSellDocs.TabIndex = 8;
+            buttonSellDocs.Text = "Продать документы";
+            buttonSellDocs.UseVisualStyleBackColor = true;
+            buttonSellDocs.Click += buttonSellDocs_Click;
+            // 
             // FormMain
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(1040, 636);
+            Controls.Add(buttonSellDocs);
             Controls.Add(buttonSupplyShop);
             Controls.Add(buttonRef);
             Controls.Add(buttonIssuedOrder);
@@ -199,5 +212,6 @@
         private Button buttonRef;
         private ToolStripMenuItem магазиныToolStripMenuItem;
         private Button buttonSupplyShop;
+        private Button buttonSellDocs;
     }
 }

LawFirm/LawFirmView/FormSellDocuments.Designer.cs

@@ -0,0 +1,120 @@
+namespace LawFirmView
+{
+    partial class FormSellDocuments
+    {
+        /// <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.comboBoxDoc = new System.Windows.Forms.ComboBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.textBoxCount = new System.Windows.Forms.TextBox();
+            this.label2 = new System.Windows.Forms.Label();
+            this.buttonSell = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // comboBoxDoc
+            // 
+            this.comboBoxDoc.FormattingEnabled = true;
+            this.comboBoxDoc.Location = new System.Drawing.Point(149, 12);
+            this.comboBoxDoc.Name = "comboBoxDoc";
+            this.comboBoxDoc.Size = new System.Drawing.Size(218, 23);
+            this.comboBoxDoc.TabIndex = 0;
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(24, 15);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(110, 15);
+            this.label1.TabIndex = 1;
+            this.label1.Text = "Пакет документов:";
+            // 
+            // textBoxCount
+            // 
+            this.textBoxCount.Location = new System.Drawing.Point(149, 41);
+            this.textBoxCount.Name = "textBoxCount";
+            this.textBoxCount.Size = new System.Drawing.Size(218, 23);
+            this.textBoxCount.TabIndex = 2;
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(59, 49);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(75, 15);
+            this.label2.TabIndex = 4;
+            this.label2.Text = "Количество:";
+            // 
+            // buttonSell
+            // 
+            this.buttonSell.Location = new System.Drawing.Point(149, 92);
+            this.buttonSell.Name = "buttonSell";
+            this.buttonSell.Size = new System.Drawing.Size(75, 23);
+            this.buttonSell.TabIndex = 5;
+            this.buttonSell.Text = "Продать";
+            this.buttonSell.UseVisualStyleBackColor = true;
+            this.buttonSell.Click += new System.EventHandler(this.buttonSell_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(259, 92);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+            this.buttonCancel.TabIndex = 6;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.buttonCancel_Click);
+            // 
+            // FormSellDocuments
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(394, 137);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSell);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.textBoxCount);
+            this.Controls.Add(this.label1);
+            this.Controls.Add(this.comboBoxDoc);
+            this.Name = "FormSellDocuments";
+            this.Text = "FormSellDocuments";
+            this.Load += new System.EventHandler(this.FormSellDocuments_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private ComboBox comboBoxDoc;
+        private Label label1;
+        private TextBox textBoxCount;
+        private Label label2;
+        private Button buttonSell;
+        private Button buttonCancel;
+    }
+}

LawFirm/LawFirmView/FormSellDocuments.cs

@@ -0,0 +1,94 @@
+using AbstractLawFirmContracts.BindingModels;
+using AbstractLawFirmContracts.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 LawFirmView
+{
+    public partial class FormSellDocuments : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IDocumentLogic _logicDocument;
+        private readonly IShopLogic _logicShop;
+        public FormSellDocuments(ILogger<FormSellDocuments> logger, IDocumentLogic logicDocument, IShopLogic logicShop)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicDocument = logicDocument;
+            _logicShop = logicShop;
+        }
+
+        private void FormSellDocuments_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Загрузка документов для продажи");
+            try
+            {
+                var list = _logicDocument.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxDoc.DisplayMember = "DocumentName";
+                    comboBoxDoc.ValueMember = "Id";
+                    comboBoxDoc.DataSource = list;
+                    comboBoxDoc.SelectedItem = null;
+                }
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки списка документов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonSell_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxDoc.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите пакет документов", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Создание продажи");
+            try
+            {
+                var operationResult = _logicShop.SellDocument(
+                    new DocumentBindingModel
+                    {
+                        Id = Convert.ToInt32(comboBoxDoc.SelectedValue)
+                    },
+                    Convert.ToInt32(textBoxCount.Text)
+                );
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при создании продажи. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания продажи");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

LawFirm/LawFirmView/FormSellDocuments.resx

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

LawFirm/LawFirmView/FormShop.Designer.cs

@@ -40,12 +40,14 @@
             Column2 = new DataGridViewTextBoxColumn();
             Column1 = new DataGridViewTextBoxColumn();
             dataGridView = new DataGridView();
+            label4 = new Label();
+            textBoxMaxCountDoc = new TextBox();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
             // 
             // textBoxName
             // 
-            textBoxName.Location = new Point(149, 20);
+            textBoxName.Location = new Point(204, 6);
             textBoxName.Margin = new Padding(3, 4, 3, 4);
             textBoxName.Name = "textBoxName";
             textBoxName.Size = new Size(228, 27);
@@ -53,7 +55,7 @@
             // 
             // textBoxAddress
             // 
-            textBoxAddress.Location = new Point(149, 56);
+            textBoxAddress.Location = new Point(204, 41);
             textBoxAddress.Margin = new Padding(3, 4, 3, 4);
             textBoxAddress.Name = "textBoxAddress";
             textBoxAddress.Size = new Size(228, 27);
@@ -61,7 +63,7 @@
             // 
             // dateTimePicker
             // 
-            dateTimePicker.Location = new Point(149, 94);
+            dateTimePicker.Location = new Point(204, 76);
             dateTimePicker.Margin = new Padding(3, 4, 3, 4);
             dateTimePicker.Name = "dateTimePicker";
             dateTimePicker.Size = new Size(228, 27);
@@ -92,7 +94,7 @@
             // label1
             // 
             label1.AutoSize = true;
-            label1.Location = new Point(48, 20);
+            label1.Location = new Point(30, 13);
             label1.Name = "label1";
             label1.Size = new Size(80, 20);
             label1.TabIndex = 6;
@@ -101,7 +103,7 @@
             // label2
             // 
             label2.AutoSize = true;
-            label2.Location = new Point(59, 59);
+            label2.Location = new Point(30, 48);
             label2.Name = "label2";
             label2.Size = new Size(54, 20);
             label2.TabIndex = 7;
@@ -110,7 +112,7 @@
             // label3
             // 
             label3.AutoSize = true;
-            label3.Location = new Point(30, 101);
+            label3.Location = new Point(30, 79);
             label3.Name = "label3";
             label3.Size = new Size(113, 20);
             label3.TabIndex = 8;
@@ -140,7 +142,7 @@
             dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
             dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
             dataGridView.Columns.AddRange(new DataGridViewColumn[] { Column1, Column2, Column3 });
-            dataGridView.Location = new Point(14, 132);
+            dataGridView.Location = new Point(12, 145);
             dataGridView.Margin = new Padding(3, 4, 3, 4);
             dataGridView.Name = "dataGridView";
             dataGridView.RowHeadersWidth = 51;
@@ -148,11 +150,30 @@
             dataGridView.Size = new Size(613, 327);
             dataGridView.TabIndex = 3;
             // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(30, 108);
+            label4.Name = "label4";
+            label4.Size = new Size(168, 20);
+            label4.TabIndex = 9;
+            label4.Text = "Максимальное кол-во:";
+            // 
+            // textBoxMaxCountDoc
+            // 
+            textBoxMaxCountDoc.Location = new Point(204, 101);
+            textBoxMaxCountDoc.Margin = new Padding(3, 4, 3, 4);
+            textBoxMaxCountDoc.Name = "textBoxMaxCountDoc";
+            textBoxMaxCountDoc.Size = new Size(228, 27);
+            textBoxMaxCountDoc.TabIndex = 10;
+            // 
             // FormShop
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(640, 557);
+            Controls.Add(textBoxMaxCountDoc);
+            Controls.Add(label4);
             Controls.Add(label3);
             Controls.Add(label2);
             Controls.Add(label1);
@@ -185,5 +206,7 @@
         private DataGridViewTextBoxColumn Column2;
         private DataGridViewTextBoxColumn Column1;
         private DataGridView dataGridView;
+        private Label label4;
+        private TextBox textBoxMaxCountDoc;
     }
 }

LawFirm/LawFirmView/FormShop.cs

@@ -45,6 +45,7 @@ namespace LawFirmView
                     {
                         textBoxName.Text = view.ShopName;
                         textBoxAddress.Text = view.Address;
+                        textBoxMaxCountDoc.Text = view.MaxCountDocuments.ToString();
                         dateTimePicker.Value = view.OpeningDate;
                         _shopDocuments = view.ShopDocuments ?? new Dictionary<int, (IDocumentModel, int)>();
                         LoadData();
@@ -98,6 +99,11 @@ namespace LawFirmView
                 MessageBox.Show("Заполните адрес", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
+            if (string.IsNullOrEmpty(textBoxMaxCountDoc.Text))
+            {
+                MessageBox.Show("Заполните макс. количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
             _logger.LogInformation("Сохранение магазина");
             try
             {
@@ -106,6 +112,7 @@ namespace LawFirmView
                     Id = _id ?? 0,
                     ShopName = textBoxName.Text,
                     Address = textBoxAddress.Text,
+                    MaxCountDocuments = Convert.ToInt32(textBoxMaxCountDoc.Text),
                     OpeningDate = dateTimePicker.Value.Date,
                     ShopDocuments = _shopDocuments
                 };

LawFirm/LawFirmView/LawFirmView.csproj

@@ -15,6 +15,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\AbstractLawFirmBusinessLogic\AbstractLawFirmBusinessLogic.csproj" />
+    <ProjectReference Include="..\AbstractLawFirmFileImpliment\AbstractLawFirmFileImplement.csproj" />
     <ProjectReference Include="..\AbstractLawFirmListImplement\AbstractLawFirmListImplement.csproj" />
   </ItemGroup>
 

LawFirm/LawFirmView/Program.cs

@@ -1,7 +1,7 @@
 using AbstractLawFirmBusinessLogic.BusinessLogic;
 using AbstractLawFirmContracts.BusinessLogicsContracts;
 using AbstractLawFirmContracts.StoragesContracts;
-using AbstractLawFirmListImplement.Implements;
+using AbstractLawFirmFileImplement.Implements;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
@@ -53,6 +53,7 @@ namespace LawFirmView
             services.AddTransient<FormShop>();
             services.AddTransient<FormShops>();
             services.AddTransient<FormShopSupply>();
+            services.AddTransient<FormSellDocuments>();
         }
 
     }