Правки

FurnitureAssembly/FurnitureAssembly.sln

@@ -1,9 +1,21 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.7.34202.233
+VisualStudioVersion = 17.8.34525.116
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FurnitureAssemblyView", "FurnitureAssembly\FurnitureAssemblyView.csproj", "{7A30F3E0-D8A6-436F-BB98-7C63A0AC9D1A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyContracts", "FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj", "{A5F526DF-C1CD-4FCA-87E6-BDB447FF959C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyDataModels", "FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj", "{7A1F9F2F-DDA5-4C97-8FAA-149D5372365D}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyBusinessLogic", "FurnitureAssemblyBusinessLogic\FurnitureAssemblyBusinessLogic.csproj", "{27F73911-7647-475A-875D-C7A4046B0958}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyListImplement", "FurnitureAssemblyListImplement\FurnitureAssemblyListImplement.csproj", "{332092CD-AA0D-475A-88A2-2E887E29E56A}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyView", "FurnitureAssemblyView\FurnitureAssemblyView.csproj", "{77944C5A-53FC-437B-A563-E7C09C769859}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyFileImplement", "FurnitureAssemblyFileImplement\FurnitureAssemblyFileImplement.csproj", "{2EF175D6-B6BD-442B-B81E-67E368553726}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FurnitureAssemblyDatabaseImplement", "FurnitureAssemblyDatabaseImplement\FurnitureAssemblyDatabaseImplement.csproj", "{C2302631-5038-4592-B75F-C03C3ABD510D}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -11,15 +23,39 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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-		{7A30F3E0-D8A6-436F-BB98-7C63A0AC9D1A}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{7A30F3E0-D8A6-436F-BB98-7C63A0AC9D1A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A5F526DF-C1CD-4FCA-87E6-BDB447FF959C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A5F526DF-C1CD-4FCA-87E6-BDB447FF959C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A5F526DF-C1CD-4FCA-87E6-BDB447FF959C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A5F526DF-C1CD-4FCA-87E6-BDB447FF959C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7A1F9F2F-DDA5-4C97-8FAA-149D5372365D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7A1F9F2F-DDA5-4C97-8FAA-149D5372365D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7A1F9F2F-DDA5-4C97-8FAA-149D5372365D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7A1F9F2F-DDA5-4C97-8FAA-149D5372365D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{27F73911-7647-475A-875D-C7A4046B0958}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{27F73911-7647-475A-875D-C7A4046B0958}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{27F73911-7647-475A-875D-C7A4046B0958}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{27F73911-7647-475A-875D-C7A4046B0958}.Release|Any CPU.Build.0 = Release|Any CPU
+		{332092CD-AA0D-475A-88A2-2E887E29E56A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{332092CD-AA0D-475A-88A2-2E887E29E56A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{332092CD-AA0D-475A-88A2-2E887E29E56A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{332092CD-AA0D-475A-88A2-2E887E29E56A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{77944C5A-53FC-437B-A563-E7C09C769859}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{77944C5A-53FC-437B-A563-E7C09C769859}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{77944C5A-53FC-437B-A563-E7C09C769859}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{77944C5A-53FC-437B-A563-E7C09C769859}.Release|Any CPU.Build.0 = Release|Any CPU
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+		{2EF175D6-B6BD-442B-B81E-67E368553726}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2EF175D6-B6BD-442B-B81E-67E368553726}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2EF175D6-B6BD-442B-B81E-67E368553726}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C2302631-5038-4592-B75F-C03C3ABD510D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C2302631-5038-4592-B75F-C03C3ABD510D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C2302631-5038-4592-B75F-C03C3ABD510D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C2302631-5038-4592-B75F-C03C3ABD510D}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {9E8D434F-5103-482B-B148-55812D18E11C}
+		SolutionGuid = {27CD86DA-500B-4657-9703-3564F0C00790}
 	EndGlobalSection
 EndGlobal

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BussinessLogic/FurnitureLogic.cs

@@ -0,0 +1,161 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.BussinessLogic
+{
+    // Класс, реализующий логику для изделий
+    public class FurnitureLogic : IFurnitureLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IFurnitureStorage _furnitureStorage;
+
+        // Конструктор
+        public FurnitureLogic(ILogger<FurnitureLogic> logger, IFurnitureStorage furnitureStorage)
+        {
+            _logger = logger;
+            _furnitureStorage = furnitureStorage;
+        }
+
+        // Вывод отфильтрованного списка
+        public List<FurnitureViewModel>? ReadList(FurnitureSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. FurnitureName: {FurnitureName}. Id:{Id}", model?.FurnitureName, model?.Id);
+
+            // list хранит весь список в случае, если model пришло со значением null на вход метода
+            var list = model == null ? _furnitureStorage.GetFullList() : _furnitureStorage.GetFilteredList(model);
+
+            if(list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+
+            return list;
+        }
+
+        // Вывод конкретного изделия
+        public FurnitureViewModel? ReadElement(FurnitureSearchModel model)
+        {
+            if(model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. FurnitureName: {FurnitureName}. Id:{Id}", model.FurnitureName, model.Id);
+
+            var element = _furnitureStorage.GetElement(model);
+
+            if(element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+
+                return null;
+            }
+
+            _logger.LogInformation("Readelement find. Id:{Id}", model.Id);
+
+            return element;
+        }
+
+        // Создание изделия
+        public bool Create(FurnitureBindingModel model)
+        {
+            CheckModel(model);
+
+            if(_furnitureStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Create operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Обновление изделия
+        public bool Update(FurnitureBindingModel model)
+        {
+            CheckModel(model);
+
+            if(_furnitureStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        // Удаление изделия
+        public bool Delete(FurnitureBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete, Id:{Id}", model.Id);
+
+            if(_furnitureStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Проверка входного аргумента для методов Insert, Update и Delete
+        private void CheckModel(FurnitureBindingModel model, bool withParams = true)
+        {
+            if(model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            // При удалении параметру withParams передаём false
+            if (!withParams)
+            {
+                return;
+            }
+
+            // Проверка на наличие названия изделия
+            if(string.IsNullOrEmpty(model.FurnitureName))
+            {
+                throw new ArgumentNullException("Нет названия изделия", nameof(model.FurnitureName));
+            }
+
+            // Проверка на наличие нормальной цены у изделия
+            if(model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена изделия должна быть больше 0", nameof(model.Price));
+            }
+
+            _logger.LogInformation("Furniture. FurnitureName:{FurnitureName}. Price:{Price}. Id:{Id}",
+                model.FurnitureName, model.Price, model.Id);
+
+            // Проверка на наличие такого же изделия в списке
+            var element = _furnitureStorage.GetElement(new FurnitureSearchModel
+            {
+                FurnitureName = model.FurnitureName,
+            });
+
+            // Если элемент найден и его Id не совпадает с Id объекта, переданного на вход
+            if(element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Изделие с таким названием уже есть");
+            }
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BussinessLogic/OrderLogic.cs

@@ -0,0 +1,192 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Enums;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.BussinessLogic
+{
+    // Класс, реализующий логику для заказов
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IOrderStorage _orderStorage;
+
+        private readonly IShopLogic _shopLogic;
+
+        private readonly IFurnitureStorage _furnitureStorage;
+
+        // Конструктор
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IShopLogic shopLogic, IFurnitureStorage furnitureStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+            _shopLogic = shopLogic;
+            _furnitureStorage = furnitureStorage;
+        }
+
+        // Вывод отфильтрованного списка компонентов
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+
+            // list хранит весь список в случае, если model пришло со значением null на вход метода
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+
+            return list;
+        }
+
+        // Создание чека
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+
+            if (model.Status != OrderStatus.Неизвестен)
+            {
+                _logger.LogWarning("Insert operation failed, incorrect order status");
+                return false;
+            }
+
+            model.Status = OrderStatus.Принят;
+
+            if (_orderStorage.Insert(model) == null)
+            {
+                model.Status = OrderStatus.Неизвестен;
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выполняется);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Готов);
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выдан);
+        }
+
+        // Проверка на пустоту входного параметра
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            // При удалении параметру withParams передаём false
+            if (!withParams)
+            {
+                return;
+            }
+
+            // Проверка на наличие товаров в заказе
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("В заказе не может быть 0 изделий", nameof(model.Count));
+            }
+
+            // Проверка на наличие нормальной суммарной стоимости чека
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Суммарная стоимость заказа должна быть больше 0", nameof(model.Sum));
+            }
+
+            // Проверка корректности id у изделий
+            if (model.FurnitureId < 0)
+            {
+                throw new ArgumentNullException("Некорректный id у изделия", nameof(model.FurnitureId));
+            }
+
+            // Проверка корректности дат
+            if (model.DateCreate > model.DateImplement)
+            {
+                throw new InvalidOperationException("Дата создания должна быть более ранней, нежели дата завершения");
+            }
+
+            _logger.LogInformation("Order. OrderId:{Id}, Sum:{Sum}. FurnitureId:{Id}. Sum:{Sum}", model.Id, model.Sum, model.FurnitureId, model.Sum);
+        }
+
+        // Обновление статуса заказа
+        public bool StatusUpdate(OrderBindingModel model, OrderStatus newOrderStatus)
+        {
+            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
+
+            // Если не смогли найти указанный заказ по его Id
+            if (viewModel == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            // Проверка на возможность обновления статуса на следующий
+            if (viewModel.Status + 1 != newOrderStatus)
+            {
+                _logger.LogWarning("Status update operation failed. New status " + newOrderStatus.ToString() + "incorrect");
+                return false;
+            }
+
+            model.Status = newOrderStatus;
+
+            // Проверка на выдачу
+            if (model.Status == OrderStatus.Готов)
+            {
+                model.DateImplement = DateTime.Now;
+
+                var furniture = _furnitureStorage.GetElement(new() { Id = viewModel.FurnitureId });
+
+                if (furniture == null)
+                {
+                    throw new ArgumentNullException(nameof(furniture));
+                }
+
+                if (!_shopLogic.AddFurnitures(furniture, viewModel.Count))
+                {
+                    throw new Exception($"Невозможно выдать изделия, магазины переполнены. Operation failed. Shop is full.");
+                }
+            }
+            else
+            {
+                model.DateImplement = viewModel.DateImplement;
+            }
+
+            CheckModel(model, false);
+
+            // Финальная проверка на возможность обновления
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+
+                _logger.LogWarning("Update operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BussinessLogic/ReportLogic.cs

@@ -0,0 +1,192 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.BussinessLogic
+{
+    // Реализация бизнес-логики отчётов
+    public class ReportLogic : IReportLogic
+    {
+        private readonly IFurnitureStorage _furnitureStorage;
+
+        private readonly IOrderStorage _orderStorage;
+
+        private readonly IShopStorage _shopStorage;
+
+        private readonly AbstractSaveToExcel _saveToExcel;
+
+        private readonly AbstractSaveToWord _saveToWord;
+
+        private readonly AbstractSaveToPdf _saveToPdf;
+
+        // Инициализируем поля класса через контейнер
+        public ReportLogic(IFurnitureStorage furnitureStorage, IOrderStorage orderStorage, IShopStorage shopStorage,
+            AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
+        {
+            _furnitureStorage = furnitureStorage;
+            _orderStorage = orderStorage;
+            _shopStorage = shopStorage;
+
+            _saveToExcel = saveToExcel;
+            _saveToWord = saveToWord;
+            _saveToPdf = saveToPdf;
+        }
+
+        // Получение списка компонент с указанием, в каких изделиях используются
+        public List<ReportFurnitureWorkPieceViewModel> GetFurnitureWorkPiece()
+        {
+            var furnitures = _furnitureStorage.GetFullList();
+
+            var list = new List<ReportFurnitureWorkPieceViewModel>();
+
+            foreach (var furniture in furnitures)
+            {
+                var record = new ReportFurnitureWorkPieceViewModel
+                {
+                    FurnitureName = furniture.FurnitureName,
+                    WorkPieces = new List<(string, int)>(),
+                    TotalCount = 0
+                };
+
+                foreach (var workPiece in furniture.FurnitureWorkPieces)
+                {
+                    record.WorkPieces.Add(new(workPiece.Value.Item1.WorkPieceName, workPiece.Value.Item2));
+                    record.TotalCount += workPiece.Value.Item2;
+                }
+
+                list.Add(record);
+            }
+
+            return list;
+        }
+
+        // Получение списка изделий с указанием, в каких магазинах в наличии
+        public List<ReportShopFurnituresViewModel> GetShopFurnitures()
+        {
+            var shops = _shopStorage.GetFullList();
+            var list = new List<ReportShopFurnituresViewModel>();
+
+            foreach (var shop in shops)
+            {
+                var record = new ReportShopFurnituresViewModel
+                {
+                    ShopName = shop.ShopName,
+                    Furnitures = new List<Tuple<string, int>>(),
+                    TotalCount = 0
+                };
+                foreach (var furniturecount in shop.ShopFurnitures.Values)
+                {
+                    record.Furnitures.Add(new Tuple<string, int>(furniturecount.Item1.FurnitureName, furniturecount.Item2));
+                    record.TotalCount += furniturecount.Item2;
+                }
+                list.Add(record);
+            }
+            return list;
+        }
+
+        // Получение списка заказов за определённый период
+        public List<ReportOrdersViewModel> GetOrders(ReportBindingModel model)
+        {
+            return _orderStorage.GetFilteredList(new OrderSearchModel { DateFrom = model.DateFrom, DateTo = model.DateTo })
+                .Select(x => new ReportOrdersViewModel
+                {
+                    Id = x.Id,
+                    DateCreate = x.DateCreate,
+                    FurnitureName = x.FurnitureName,
+                    Sum = x.Sum,
+                    OrderStatus = x.Status.ToString()
+                }).ToList();
+        }
+
+        // Получение списка заказов за весь период
+        public List<ReportGroupedOrdersViewModel> GetGroupedOrders()
+        {
+            return _orderStorage.GetFullList()
+                    .GroupBy(x => x.DateCreate.Date)
+                    .Select(x => new ReportGroupedOrdersViewModel
+                    {
+                        DateCreate = x.Key,
+                        Count = x.Count(),
+                        Sum = x.Sum(x => x.Sum)
+                    })
+                    .ToList();
+        }
+
+        // Сохранение мебели в файл-Word
+        public void SaveFurnituresToWordFile(ReportBindingModel model)
+        {
+            _saveToWord.CreateDoc(new WordInfo
+            {
+                FileName = model.FileName,
+                Title = "Список изделий",
+                Furnitures = _furnitureStorage.GetFullList()
+            });
+        }
+
+        // Сохранение магазинов в файл-Word
+        public void SaveShopsToWordFile(ReportBindingModel model)
+        {
+            _saveToWord.CreateTableDoc(new WordInfo
+            {
+                FileName = model.FileName,
+                Title = "Таблица магазинов",
+                Shops = _shopStorage.GetFullList()
+            });
+        }
+
+        // Сохранение заготовок с указанием изделий в файл_Excel
+        public void SaveFurnitureWorkPieceToExcelFile(ReportBindingModel model)
+        {
+            _saveToExcel.CreateReport(new ExcelInfo
+            {
+                FileName = model.FileName,
+                Title = "Список заготовок",
+                FurnitureWorkPieces = GetFurnitureWorkPiece()
+            });
+        }
+
+        // Сохранение магазинов с указанием изделий в файл-Excel
+        public void SaveShopFurnituresToExcelFile(ReportBindingModel model)
+        {
+            _saveToExcel.CreateShopReport(new ExcelInfo
+            {
+                FileName = model.FileName,
+                Title = "Список магазинов",
+                ShopFurnitures = GetShopFurnitures()
+            });
+        }
+
+        // Сохранение заказов в файл-Pdf
+        public void SaveOrdersToPdfFile(ReportBindingModel model)
+        {
+            _saveToPdf.CreateDoc(new PdfInfo
+            {
+                FileName = model.FileName,
+                Title = "Список заказов",
+                DateFrom = model.DateFrom!.Value,
+                DateTo = model.DateTo!.Value,
+                Orders = GetOrders(model)
+            });
+        }
+
+        //Сохранение заказов за весь период в файл-Pdf
+        public void SaveGroupedOrdersToPdfFile(ReportBindingModel model)
+        {
+            _saveToPdf.CreateGroupedDoc(new PdfInfo
+            {
+                FileName = model.FileName,
+                Title = "Список заказов",
+                GroupedOrders = GetGroupedOrders()
+            });
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BussinessLogic/ShopLogic.cs

@@ -0,0 +1,267 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.BussinessLogic
+{
+    // Класс, реализующий логику для магазинов
+    public class ShopLogic : IShopLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IShopStorage _shopStorage;
+
+        // Конструктор
+        public ShopLogic(ILogger<ShopLogic> logger, IShopStorage shopStorage)
+        {
+            _logger = logger;
+            _shopStorage = shopStorage;
+        }
+
+        // Вывод конкретного магазина
+        public ShopViewModel? ReadElement(ShopSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. ShopName:{ShopName}. Id:{Id}", model.ShopName, 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;
+        }
+
+        // Вывод отфильтрованного списка компонентов
+        public List<ShopViewModel>? ReadList(ShopSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ShopName:{ShopName}. Id: {Id}", model?.ShopName, model?.Id);
+
+            // list хранит весь список в случае, если model пришло со значением null на вход метода
+            var list = model == null ? _shopStorage.GetFullList() : _shopStorage.GetFilteredList(model);
+
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+
+            return list;
+        }
+
+        // Пополнение магазина
+        public bool AddFurniture(ShopSearchModel model, IFurnitureModel furniture, int count)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (count <= 0)
+            {
+                throw new ArgumentNullException("Количество добавляемых изделий должно быть больше 0", nameof(count));
+            }
+
+            _logger.LogInformation("AddFurniture. ShopName:{ShopName}. Id: {Id}", model?.ShopName, model?.Id);
+            var shop = _shopStorage.GetElement(model);
+
+            if (shop == null)
+            {
+                _logger.LogWarning("Add Furniture operation failed");
+
+                return false;
+            }
+
+            if (shop.MaxCountFurnitures - shop.ShopFurnitures.Select(x => x.Value.Item2).Sum() < count)
+            {
+                throw new ArgumentNullException("Слишком много изделий для одного магазина", nameof(count));
+            }
+
+            if (!shop.ShopFurnitures.ContainsKey(furniture.Id))
+            {
+                shop.ShopFurnitures[furniture.Id] = (furniture, count);
+            }
+            else
+            {
+                shop.ShopFurnitures[furniture.Id] = (furniture, shop.ShopFurnitures[furniture.Id].Item2 + count);
+            }
+
+            _shopStorage.Update(new ShopBindingModel()
+            {
+                Id = shop.Id,
+                ShopName = shop.ShopName,
+                Address = shop.Address,
+                DateOpen = shop.DateOpen,
+                MaxCountFurnitures = shop.MaxCountFurnitures,
+                ShopFurnitures = shop.ShopFurnitures
+            });
+
+            return true;
+        }
+
+        // Создание магазина
+        public bool Create(ShopBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_shopStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Обновление магазина
+        public bool Update(ShopBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_shopStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Удаление магазина
+        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;
+        }
+
+        // Проверка входного аргумента для методов Insert, Update и Delete
+        private void CheckModel(ShopBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            // При удалении передаём как параметр false
+            if (!withParams)
+            {
+                return;
+            }
+
+            // Проверка на наличие названия магазина
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                throw new ArgumentNullException("Отсутствует названия магазина", nameof(model.ShopName));
+            }
+
+            // Проверка на наличие адреса у магазина
+            if (string.IsNullOrEmpty(model.Address))
+            {
+                throw new ArgumentNullException("Отсутствует адреса магазина", nameof(model.Address));
+            }
+
+            _logger.LogInformation("Shop. ShopName:{ShopName}. Address:{Address}. Id: {Id}", model.ShopName, model.Address, model.Id);
+
+            // Проверка на наличие такого же магазина в списке
+            var element = _shopStorage.GetElement(new ShopSearchModel
+            {
+                ShopName = model.ShopName
+            });
+
+            // Если элемент найден и его Id не совпадает с Id переданного объекта
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Магазин с таким названием уже есть");
+            }
+        }
+
+
+        public bool AddFurnitures(IFurnitureModel model, int count)
+        {
+            if (count <= 0)
+            {
+                throw new ArgumentNullException("Количество добавляемых изделий должно быть больше 0", nameof(count));
+            }
+
+            _logger.LogInformation("AddFurnitures. Furniture: {Furniture}. Count: {Count}", model?.FurnitureName, count);
+
+            var capacity = _shopStorage.GetFullList().Select(x => x.MaxCountFurnitures - x.ShopFurnitures.Select(x => x.Value.Item2).Sum()).Sum() - count;
+
+            if (capacity < 0)
+            {
+                _logger.LogWarning("AddFurnitures operation failed. Sell {count} Furnitures ", -capacity);
+                return false;
+            }
+
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                if (shop.MaxCountFurnitures - shop.ShopFurnitures.Select(x => x.Value.Item2).Sum() < count)
+                {
+                    if (!AddFurniture(new() { Id = shop.Id }, model, shop.MaxCountFurnitures - shop.ShopFurnitures.Select(x => x.Value.Item2).Sum()))
+                    {
+                        _logger.LogWarning("AddFurnitures operation failed.");
+
+                        return false;
+                    }
+
+                    count -= shop.MaxCountFurnitures - shop.ShopFurnitures.Select(x => x.Value.Item2).Sum();
+                }
+                else
+                {
+                    if (!AddFurniture(new() { Id = shop.Id }, model, count))
+                    {
+                        _logger.LogWarning("AddFurnitures operation failed.");
+
+                        return false;
+                    }
+
+                    count -= count;
+                }
+
+                if (count == 0)
+                {
+                    return true;
+                }
+            }
+
+            return true;
+        }
+
+        public bool SellFurnitures(IFurnitureModel model, int count)
+        {
+            return _shopStorage.SellFurnitures(model, count);
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BussinessLogic/WorkPieceLogic.cs

@@ -0,0 +1,161 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.BussinessLogic
+{
+    // Класс, реализующий логику для заготовок
+    public class WorkPieceLogic : IWorkPieceLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IWorkPieceStorage _workPieceStorage;
+
+        // Конструктор
+        public WorkPieceLogic(ILogger<WorkPieceLogic> logger, IWorkPieceStorage workPieceStorage)
+        {
+            _logger = logger;
+            _workPieceStorage = workPieceStorage;
+        }
+
+        // Вывод отфильтрованного списка компонентов
+        public List<WorkPieceViewModel>? ReadList(WorkPieceSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. WorkPieceName:{WorkPieceName}. Id:{Id}", model?.WorkPieceName, model?.Id);
+
+            // list хранит весь список в случае, если model пришло со значением null на вход метода
+            var list = model == null ? _workPieceStorage.GetFullList() : _workPieceStorage.GetFilteredList(model);
+
+            if(list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+
+            return list;
+        }
+
+        // Вывод конкретной заготовки
+        public WorkPieceViewModel? ReadElement(WorkPieceSearchModel model)
+        {
+            if(model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. WorkPieceName:{WorkPieceName}. Id:{Id}", model.WorkPieceName, model.Id);
+
+            var element = _workPieceStorage.GetElement(model);
+
+            if(element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+
+                return null;
+            }
+
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+
+            return element;
+        }
+
+        // Создание заготовки
+        public bool Create(WorkPieceBindingModel model)
+        {
+            CheckModel(model);
+
+            if(_workPieceStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("insert operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Обновление заготовки
+        public bool Update(WorkPieceBindingModel model)
+        {
+            CheckModel(model);
+
+            if(_workPieceStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Удаление заготовки
+        public bool Delete(WorkPieceBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if(_workPieceStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        // Проверка входного аргумента для методов Insert, Update и Delete
+        private void CheckModel(WorkPieceBindingModel model, bool withParams = true)
+        {
+            if(model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            // При удалении передаём как параметр false
+            if (!withParams)
+            {
+                return;
+            }
+
+            // Проверка на наличие названия заготовки
+            if (string.IsNullOrEmpty(model.WorkPieceName))
+            {
+                throw new ArgumentNullException("Нет названия заготовки", nameof(model.WorkPieceName));
+            }
+
+            // Проверка на наличие нормальной цены у заготовки
+            if(model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Цена заготовки должна быть больше 0", nameof(model.Cost));
+            }
+
+            _logger.LogInformation("WorkPiece. WorkPieceName:{WorkPieceName}. Cost:{Cost}. Id{Id}",
+                model.WorkPieceName, model.Cost, model.Id);
+
+            // Проверка на наличие такой же заготовки в списке
+            var element = _workPieceStorage.GetElement(new WorkPieceSearchModel
+            {
+                WorkPieceName = model.WorkPieceName,
+            });
+
+            // Если элемент найден и его Id не совпадает с Id переданного объекта
+            if(element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Заготовка с таким названием уже есть");
+            }
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/FurnitureAssemblyBusinessLogic.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="DocumentFormat.OpenXml" Version="3.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="MigraDocCore.DocumentObjectModel" Version="1.3.63" />
+    <PackageReference Include="MigraDocCore.Rendering" Version="1.3.63" />
+    <PackageReference Include="PDFsharp-MigraDoc-GDI" Version="1.50.5147" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/AbstractSaveToExcel.cs

@@ -0,0 +1,176 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToExcel
+    {
+        // Создание отчета. Описание методов ниже
+        public void CreateReport(ExcelInfo info)
+        {
+            CreateExcel(info);
+
+            InsertCellInWorksheet(new ExcelCellParameters
+            {
+                ColumnName = "A",
+                RowIndex = 1,
+                Text = info.Title,
+                StyleInfo = ExcelStyleInfoType.Title
+            });
+
+            MergeCells(new ExcelMergeParameters
+            {
+                CellFromName = "A1",
+                CellToName = "C1"
+            });
+
+            uint rowIndex = 2;
+
+            foreach (var fwp in info.FurnitureWorkPieces)
+            {
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = fwp.FurnitureName,
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                rowIndex++;
+
+                foreach (var (WorkPiece, Count) in fwp.WorkPieces)
+                {
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "B",
+                        RowIndex = rowIndex,
+                        Text = WorkPiece,
+                        StyleInfo = ExcelStyleInfoType.TextWithBorder
+                    });
+
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "C",
+                        RowIndex = rowIndex,
+                        Text = Count.ToString(),
+                        StyleInfo = ExcelStyleInfoType.TextWithBorder
+                    });
+
+                    rowIndex++;
+                }
+
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = "Итого",
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "C",
+                    RowIndex = rowIndex,
+                    Text = fwp.TotalCount.ToString(),
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                rowIndex++;
+            }
+
+            SaveExcel(info);
+        }
+
+        public void CreateShopReport(ExcelInfo info)
+        {
+            CreateExcel(info);
+
+            InsertCellInWorksheet(new ExcelCellParameters
+            {
+                ColumnName = "A",
+                RowIndex = 1,
+                Text = info.Title,
+                StyleInfo = ExcelStyleInfoType.Title
+            });
+
+            MergeCells(new ExcelMergeParameters
+            {
+                CellFromName = "A1",
+                CellToName = "C1"
+            });
+
+            uint rowIndex = 2;
+
+            foreach (var sm in info.ShopFurnitures)
+            {
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = sm.ShopName,
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                rowIndex++;
+
+                foreach (var (Furniture, Count) in sm.Furnitures)
+                {
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "B",
+                        RowIndex = rowIndex,
+                        Text = Furniture,
+                        StyleInfo = ExcelStyleInfoType.TextWithBorder
+                    });
+
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "C",
+                        RowIndex = rowIndex,
+                        Text = Count.ToString(),
+                        StyleInfo = ExcelStyleInfoType.TextWithBorder
+                    });
+
+                    rowIndex++;
+                }
+
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = "Итого",
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "C",
+                    RowIndex = rowIndex,
+                    Text = sm.TotalCount.ToString(),
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+
+                rowIndex++;
+            }
+
+            SaveExcel(info);
+        }
+
+        // Создание Excel-файла
+        protected abstract void CreateExcel(ExcelInfo info);
+
+        // Добавляем новую ячейку в лист
+        protected abstract void InsertCellInWorksheet(ExcelCellParameters excelParams);
+
+        // Объединение ячеек
+        protected abstract void MergeCells(ExcelMergeParameters excelParams);
+
+        // Сохранение файла
+        protected abstract void SaveExcel(ExcelInfo info);
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/AbstractSaveToPdf.cs

@@ -0,0 +1,106 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToPdf
+    {
+        // Публичный метод создания документа. Описание методов ниже
+        public void CreateDoc(PdfInfo info)
+        {
+            CreatePdf(info);
+
+            CreateParagraph(new PdfParagraph
+            {
+                Text = info.Title,
+                Style = "NormalTitle",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+
+            CreateParagraph(new PdfParagraph
+            {
+                Text = $"с {info.DateFrom.ToShortDateString()} по {info.DateTo.ToShortDateString()}",
+                Style = "Normal",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+
+            CreateTable(new List<string> { "2cm", "3cm", "6cm", "3cm", "3cm" });
+
+            CreateRow(new PdfRowParameters
+            {
+                Texts = new List<string> { "Номер", "Дата заказа", "Изделие", "Сумма", "Статус заказа" },
+                Style = "NormalTitle",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+
+            foreach (var order in info.Orders)
+            {
+                CreateRow(new PdfRowParameters
+                {
+                    Texts = new List<string> { order.Id.ToString(), order.DateCreate.ToShortDateString(), order.FurnitureName, order.Sum.ToString(), order.OrderStatus },
+                    Style = "Normal",
+                    ParagraphAlignment = PdfParagraphAlignmentType.Left
+                });
+            }
+
+            CreateParagraph(new PdfParagraph
+            {
+                Text = $"\nИтого: {info.Orders.Sum(x => x.Sum)}\t",
+                Style = "Normal",
+                ParagraphAlignment = PdfParagraphAlignmentType.Right
+            });
+
+            SavePdf(info);
+        }
+
+        public void CreateGroupedDoc(PdfInfo info)
+        {
+            CreatePdf(info);
+
+            CreateParagraph(new PdfParagraph { Text = info.Title, Style = "NormalTitle", ParagraphAlignment = PdfParagraphAlignmentType.Center });
+
+            CreateTable(new List<string> { "3cm", "3cm", "3cm" });
+
+            CreateRow(new PdfRowParameters
+            {
+                Texts = new List<string> { "Дата заказа", "Количество заказов", "Сумма" },
+                Style = "NormalTitle",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+
+            foreach (var order in info.GroupedOrders)
+            {
+                CreateRow(new PdfRowParameters
+                {
+                    Texts = new List<string> { order.DateCreate.ToShortDateString(), order.Count.ToString(), order.Sum.ToString() },
+                    Style = "Normal",
+                    ParagraphAlignment = PdfParagraphAlignmentType.Left
+                });
+            }
+
+            CreateParagraph(new PdfParagraph { Text = $"Итого: {info.GroupedOrders.Sum(x => x.Sum)}\t", Style = "Normal", ParagraphAlignment = PdfParagraphAlignmentType.Center });
+
+            SavePdf(info);
+        }
+
+        /// Создание Pdf-файла
+        protected abstract void CreatePdf(PdfInfo info);
+
+        /// Создание параграфа с текстом
+        protected abstract void CreateParagraph(PdfParagraph paragraph);
+
+        /// Создание таблицы
+        protected abstract void CreateTable(List<string> columns);
+
+        /// Создание и заполнение строки
+        protected abstract void CreateRow(PdfRowParameters rowParameters);
+
+        /// Сохранение файла
+        protected abstract void SavePdf(PdfInfo info);
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/AbstractSaveToWord.cs

@@ -0,0 +1,85 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToWord
+    {
+        // Метод создания документа
+        public void CreateDoc(WordInfo info)
+        {
+            CreateWord(info);
+
+            // Создание ряда абзацев
+            CreateParagraph(new WordParagraph
+            {
+                Texts = new List<(string, WordTextProperties)> { (info.Title, new WordTextProperties { Bold = true, Size = "24", }) },
+                TextProperties = new WordTextProperties
+                {
+                    Size = "24",
+                    JustificationType = WordJustificationType.Center
+                }
+            });
+
+            // Заполнение абзацев текстом
+            foreach (var furniture in info.Furnitures)
+            {
+                CreateParagraph(new WordParagraph
+                {
+                    Texts = new List<(string, WordTextProperties)> { (furniture.FurnitureName + " ", new WordTextProperties { Bold = true, Size = "24", }),
+                    (furniture.Price.ToString(), new WordTextProperties { Size = "24" }) },
+                    TextProperties = new WordTextProperties
+                    {
+                        Size = "24",
+                        JustificationType = WordJustificationType.Both
+                    }
+                });
+            }
+
+            SaveWord(info);
+        }
+
+        public void CreateTableDoc(WordInfo wordInfo)
+        {
+            CreateWord(wordInfo);
+
+            var list = new List<string>();
+
+            foreach (var shop in wordInfo.Shops)
+            {
+                list.Add(shop.ShopName);
+                list.Add(shop.Address);
+                list.Add(shop.DateOpen.ToString());
+            }
+
+            var wordTable = new WordTable
+            {
+                Headers = new List<string> {
+                    "Название",
+                    "Адрес",
+                    "Дата открытия"},
+                Texts = list
+            };
+
+            CreateTable(wordTable);
+            SaveWord(wordInfo);
+        }
+
+        // Создание Doc-файла
+        protected abstract void CreateWord(WordInfo info);
+
+        // Создание абзаца с текстом
+        protected abstract void CreateParagraph(WordParagraph paragraph);
+
+        // Создание таблицы
+        protected abstract void CreateTable(WordTable info);
+
+        // Сохранение файла
+        protected abstract void SaveWord(WordInfo info);
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperEnums/ExcelStyleInfoType.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums
+{
+    // Вспомогательное перечисление для оформления excel
+    public enum ExcelStyleInfoType
+    {
+        // Заголовок
+        Title,
+
+        // Просто текст
+        Text,
+
+        // Текст в рамке
+        TextWithBorder
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperEnums/PdfParagraphAlignmentType.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums
+{
+    // Вспомогательное перечисление для оформления pdf документа
+    public enum PdfParagraphAlignmentType
+    {
+        // Либо по центру
+        Center,
+
+        // Либо с левого края
+        Left,
+
+        // Либо с правого края
+        Right
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperEnums/WordJustificationType.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums
+{
+    // Вспомогательное перечисление для настройки формата word документа
+    public enum WordJustificationType
+    {
+        // Выравниваем либо по центру
+        Center,
+
+        // Либо на всю ширину
+        Both
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/ExcelCellParameters.cs

@@ -0,0 +1,28 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Информация по ячейке в таблице excel
+    public class ExcelCellParameters
+    {
+        // Название колонки
+        public string ColumnName { get; set; } = string.Empty;
+
+        // Строка
+        public uint RowIndex { get; set; }
+
+        // Тект в ячейке
+        public string Text { get; set; } = string.Empty;
+
+        // Геттер для того, чтобы не искать каждый раз
+        public string CellReference => $"{ColumnName}{RowIndex}";
+
+        // В каком стиле выводить информацию
+        public ExcelStyleInfoType StyleInfo { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/ExcelInfo.cs

@@ -0,0 +1,25 @@
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Информация по excel файлу, который хотим создать
+    public class ExcelInfo
+    {
+        // Название файла
+        public string FileName { get; set; } = string.Empty;
+
+        // Заголовок
+        public string Title { get; set; } = string.Empty;
+
+        // Список заготовок по изделиям
+        public List<ReportFurnitureWorkPieceViewModel> FurnitureWorkPieces { get; set; } = new();
+
+        // Список магазинов с изделиями
+        public List<ReportShopFurnituresViewModel> ShopFurnitures { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/ExcelMergeParameters.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Информация для объединения ячеек
+    public class ExcelMergeParameters
+    {
+        public string CellFromName { get; set; } = string.Empty;
+
+        public string CellToName { get; set; } = string.Empty;
+
+        // Геттер для указания диапазона для объединения, чтобы каждый раз его не вычислять
+        public string Merge => $"{CellFromName}:{CellToName}";
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/PdfInfo.cs

@@ -0,0 +1,27 @@
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Общая информация по pdf файлу
+    public class PdfInfo
+    {
+        public string FileName { get; set; } = string.Empty;
+
+        public string Title { get; set; } = string.Empty;
+
+        public DateTime DateFrom { get; set; }
+
+        public DateTime DateTo { get; set; }
+
+        // Перечень заказов за указанный период для вывода/сохранения
+        public List<ReportOrdersViewModel> Orders { get; set; } = new();
+
+        // Перечень заказов за весь период для вывода и сохранения
+        public List<ReportGroupedOrdersViewModel> GroupedOrders { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/PdfParagraph.cs

@@ -0,0 +1,20 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Информация п параграфу в pdf документе
+    public class PdfParagraph
+    {
+        public string Text { get; set; } = string.Empty;
+
+        public string Style { get; set; } = string.Empty;
+
+        // Информация по выравниванию текста в параграфе
+        public PdfParagraphAlignmentType ParagraphAlignment { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/PdfRowParameters.cs

@@ -0,0 +1,22 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Информация по параметрам строк таблицы
+    public class PdfRowParameters
+    {
+        // Набор текстов
+        public List<string> Texts { get; set; } = new();
+
+        // Стиль к текстам
+        public string Style { get; set; } = string.Empty;
+
+        // Как выравниваем
+        public PdfParagraphAlignmentType ParagraphAlignment { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/WordInfo.cs

@@ -0,0 +1,23 @@
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Общая информация по документу
+    public class WordInfo
+    {
+        public string FileName { get; set; } = string.Empty;
+
+        public string Title { get; set; } = string.Empty;
+
+        // Список заготовок для вывода и сохранения
+        public List<FurnitureViewModel> Furnitures { get; set; } = new();
+
+        // Список магазинов для вывода и сохранения
+        public List<ShopViewModel> Shops { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/WordParagraph.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Модель параграфов, которые есть в тексте
+    public class WordParagraph
+    {
+        // Набор текстов в абзаце (для случая, если в абзаце текст разных стилей)
+        public List<(string, WordTextProperties)> Texts { get; set; } = new();
+
+        // Свойства параграфа, если они есть
+        public WordTextProperties? TextProperties { get; set; }
+
+        public List<List<(string, WordTextProperties)>> RowTexts { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/WordTable.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    public class WordTable
+    {
+        public List<string> Headers { get; set; } = new();
+
+        public List<string> Texts { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/HelperModels/WordTextProperties.cs

@@ -0,0 +1,22 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels
+{
+    // Модель свойств текста, которые нам нужны в Word документе
+    public class WordTextProperties
+    {
+        // Размер текста
+        public string Size { get; set; } = string.Empty;
+
+        // Надо ли делать его жирным
+        public bool Bold { get; set; }
+
+        // Выравнивание
+        public WordJustificationType JustificationType { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/Implements/SaveToExcel.cs

@@ -0,0 +1,391 @@
+using DocumentFormat.OpenXml.Office2010.Excel;
+using DocumentFormat.OpenXml.Office2013.Excel;
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Spreadsheet;
+using DocumentFormat.OpenXml;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.Implements
+{
+    // Реализация абстрактного класса создания Excel документа
+    public class SaveToExcel : AbstractSaveToExcel
+    {
+        private SpreadsheetDocument? _spreadsheetDocument;
+
+        private SharedStringTablePart? _shareStringPart;
+
+        private Worksheet? _worksheet;
+
+        // Настройка стилей для файла
+        private static void CreateStyles(WorkbookPart workbookpart)
+        {
+            var sp = workbookpart.AddNewPart<WorkbookStylesPart>();
+            sp.Stylesheet = new Stylesheet();
+
+            // Настройка шрифта простого текста
+            var fonts = new Fonts() { Count = 2U, KnownFonts = true };
+
+            var fontUsual = new Font();
+            fontUsual.Append(new FontSize() { Val = 12D });
+            fontUsual.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Theme = 1U });
+            fontUsual.Append(new FontName() { Val = "Times New Roman" });
+            fontUsual.Append(new FontFamilyNumbering() { Val = 2 });
+            fontUsual.Append(new FontScheme() { Val = FontSchemeValues.Minor });
+
+            // Настройка шрифта заголока
+            var fontTitle = new Font();
+            fontTitle.Append(new Bold());
+            fontTitle.Append(new FontSize() { Val = 14D });
+            fontTitle.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Theme = 1U });
+            fontTitle.Append(new FontName() { Val = "Times New Roman" });
+            fontTitle.Append(new FontFamilyNumbering() { Val = 2 });
+            fontTitle.Append(new FontScheme() { Val = FontSchemeValues.Minor });
+
+            // Добавление созданных шрифтов
+            fonts.Append(fontUsual);
+            fonts.Append(fontTitle);
+
+            // Создание заливки
+            var fills = new Fills() { Count = 2U };
+
+            var fill1 = new Fill();
+            fill1.Append(new PatternFill()
+            {
+                PatternType = PatternValues.None
+            });
+
+            var fill2 = new Fill();
+            fill2.Append(new PatternFill()
+            {
+                PatternType = PatternValues.Gray125
+            });
+
+            fills.Append(fill1);
+            fills.Append(fill2);
+
+            // Стиль границ ячейки - незакрашенный (для заголовка) и закрашенный
+            var borders = new Borders() { Count = 2U };
+
+            var borderNoBorder = new Border();
+            borderNoBorder.Append(new LeftBorder());
+            borderNoBorder.Append(new RightBorder());
+            borderNoBorder.Append(new TopBorder());
+            borderNoBorder.Append(new BottomBorder());
+            borderNoBorder.Append(new DiagonalBorder());
+
+            var borderThin = new Border();
+
+            var leftBorder = new LeftBorder() { Style = BorderStyleValues.Thin };
+            leftBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Indexed = 64U });
+
+            var rightBorder = new RightBorder()
+            {
+                Style = BorderStyleValues.Thin
+            };
+            rightBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Indexed = 64U });
+
+            var topBorder = new TopBorder() { Style = BorderStyleValues.Thin };
+            topBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Indexed = 64U });
+
+            var bottomBorder = new BottomBorder()
+            {
+                Style = BorderStyleValues.Thin
+            };
+            bottomBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Indexed = 64U });
+
+            borderThin.Append(leftBorder);
+            borderThin.Append(rightBorder);
+            borderThin.Append(topBorder);
+            borderThin.Append(bottomBorder);
+            borderThin.Append(new DiagonalBorder());
+
+            borders.Append(borderNoBorder);
+            borders.Append(borderThin);
+
+            // Формирование CellFormat из комбинаций шрифтов, заливок и т. д.
+            var cellStyleFormats = new CellStyleFormats() { Count = 1U };
+
+            var cellFormatStyle = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId = 0U,
+                FillId = 0U,
+                BorderId = 0U
+            };
+
+            cellStyleFormats.Append(cellFormatStyle);
+
+            var cellFormats = new CellFormats() { Count = 3U };
+
+            var cellFormatFont = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId = 0U,
+                FillId = 0U,
+                BorderId = 0U,
+                FormatId = 0U,
+                ApplyFont = true
+            };
+
+            var cellFormatFontAndBorder = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId = 0U,
+                FillId = 0U,
+                BorderId = 1U,
+                FormatId = 0U,
+                ApplyFont = true,
+                ApplyBorder = true
+            };
+
+            var cellFormatTitle = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId = 1U,
+                FillId = 0U,
+                BorderId = 0U,
+                FormatId = 0U,
+                Alignment = new Alignment()
+                {
+                    Vertical = VerticalAlignmentValues.Center,
+                    WrapText = true,
+                    Horizontal = HorizontalAlignmentValues.Center
+                },
+                ApplyFont = true
+            };
+
+            // По итогу создали 3 стиля
+            cellFormats.Append(cellFormatFont);
+            cellFormats.Append(cellFormatFontAndBorder);
+            cellFormats.Append(cellFormatTitle);
+
+            var cellStyles = new CellStyles() { Count = 1U };
+
+            cellStyles.Append(new CellStyle()
+            {
+                Name = "Normal",
+                FormatId = 0U,
+                BuiltinId = 0U
+            });
+
+            var differentialFormats = new DocumentFormat.OpenXml.Office2013.Excel.DifferentialFormats() { Count = 0U };
+
+            var tableStyles = new TableStyles()
+            {
+                Count = 0U,
+                DefaultTableStyle = "TableStyleMedium2",
+                DefaultPivotStyle = "PivotStyleLight16"
+            };
+
+            var stylesheetExtensionList = new StylesheetExtensionList();
+
+            var stylesheetExtension1 = new StylesheetExtension() { Uri = "{EB79DEF2-80B8-43e5-95BD-54CBDDF9020C}" };
+            stylesheetExtension1.AddNamespaceDeclaration("x14", "http://schemas.microsoft.com/office/spreadsheetml/2009/9/main");
+            stylesheetExtension1.Append(new SlicerStyles()
+            {
+                DefaultSlicerStyle = "SlicerStyleLight1"
+            });
+
+            var stylesheetExtension2 = new StylesheetExtension()
+            {
+                Uri = "{9260A510-F301-46a8-8635-F512D64BE5F5}"
+            };
+
+            stylesheetExtension2.AddNamespaceDeclaration("x15", "http://schemas.microsoft.com/office/spreadsheetml/2010/11/main");
+
+            stylesheetExtension2.Append(new TimelineStyles()
+            {
+                DefaultTimelineStyle = "TimeSlicerStyleLight1"
+            });
+
+            stylesheetExtensionList.Append(stylesheetExtension1);
+            stylesheetExtensionList.Append(stylesheetExtension2);
+
+            sp.Stylesheet.Append(fonts);
+            sp.Stylesheet.Append(fills);
+            sp.Stylesheet.Append(borders);
+            sp.Stylesheet.Append(cellStyleFormats);
+            sp.Stylesheet.Append(cellFormats);
+            sp.Stylesheet.Append(cellStyles);
+            sp.Stylesheet.Append(differentialFormats);
+            sp.Stylesheet.Append(tableStyles);
+            sp.Stylesheet.Append(stylesheetExtensionList);
+        }
+
+        // Получение номера стиля (одного из 3-х нами созданных) из типа
+        private static uint GetStyleValue(ExcelStyleInfoType styleInfo)
+        {
+            return styleInfo switch
+            {
+                ExcelStyleInfoType.Title => 2U,
+                ExcelStyleInfoType.TextWithBorder => 1U,
+                ExcelStyleInfoType.Text => 0U,
+                _ => 0U,
+            };
+        }
+
+        protected override void CreateExcel(ExcelInfo info)
+        {
+            // Создаём документ Excel
+            _spreadsheetDocument = SpreadsheetDocument.Create(info.FileName, SpreadsheetDocumentType.Workbook);
+
+            // Создаем книгу (в ней хранятся листы)
+            var workbookpart = _spreadsheetDocument.AddWorkbookPart();
+
+            workbookpart.Workbook = new Workbook();
+
+            CreateStyles(workbookpart);
+
+            // Получаем/создаем хранилище текстов для книги
+            _shareStringPart = _spreadsheetDocument.WorkbookPart!.GetPartsOfType<SharedStringTablePart>().Any()
+                ? _spreadsheetDocument.WorkbookPart.GetPartsOfType<SharedStringTablePart>().First()
+                : _spreadsheetDocument.WorkbookPart.AddNewPart<SharedStringTablePart>();
+
+            // Создаем SharedStringTable, если его нет
+            if (_shareStringPart.SharedStringTable == null)
+            {
+                _shareStringPart.SharedStringTable = new SharedStringTable();
+            }
+
+            // Создаем лист в книгу
+            var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
+            worksheetPart.Worksheet = new Worksheet(new SheetData());
+
+            // Добавляем лист в книгу
+            var sheets = _spreadsheetDocument.WorkbookPart.Workbook.AppendChild(new Sheets());
+
+            var sheet = new Sheet()
+            {
+                Id = _spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
+                SheetId = 1,
+                Name = "Лист"
+            };
+
+            sheets.Append(sheet);
+
+            _worksheet = worksheetPart.Worksheet;
+        }
+
+        // Метод вставки в лист книги
+        protected override void InsertCellInWorksheet(ExcelCellParameters excelParams)
+        {
+            if (_worksheet == null || _shareStringPart == null)
+            {
+                return;
+            }
+
+            var sheetData = _worksheet.GetFirstChild<SheetData>();
+
+            if (sheetData == null)
+            {
+                return;
+            }
+
+            // Ищем строку, либо добавляем ее
+            Row row;
+
+            if (sheetData.Elements<Row>().Where(r => r.RowIndex! == excelParams.RowIndex).Any())
+            {
+                row = sheetData.Elements<Row>().Where(r => r.RowIndex! == excelParams.RowIndex).First();
+            }
+            else
+            {
+                row = new Row() { RowIndex = excelParams.RowIndex };
+                sheetData.Append(row);
+            }
+
+            // Ищем нужную ячейку
+            Cell cell;
+
+            if (row.Elements<Cell>().Where(c => c.CellReference!.Value == excelParams.CellReference).Any())
+            {
+                cell = row.Elements<Cell>().Where(c => c.CellReference!.Value == excelParams.CellReference).First();
+            }
+            else
+            {
+                // Все ячейки должны быть последовательно друг за другом расположены
+                // Нужно определить, после какой вставлять
+                Cell? refCell = null;
+
+                foreach (Cell rowCell in row.Elements<Cell>())
+                {
+                    if (string.Compare(rowCell.CellReference!.Value, excelParams.CellReference, true) > 0)
+                    {
+                        refCell = rowCell;
+                        break;
+                    }
+                }
+
+                var newCell = new Cell()
+                {
+                    CellReference = excelParams.CellReference
+                };
+
+                row.InsertBefore(newCell, refCell);
+
+                cell = newCell;
+            }
+
+            // Вставляем новый текст
+            _shareStringPart.SharedStringTable.AppendChild(new SharedStringItem(new Text(excelParams.Text)));
+            _shareStringPart.SharedStringTable.Save();
+
+            cell.CellValue = new CellValue((_shareStringPart.SharedStringTable.Elements<SharedStringItem>().Count() - 1).ToString());
+            cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);
+            cell.StyleIndex = GetStyleValue(excelParams.StyleInfo);
+        }
+
+        // Метод объединения ячеек
+        protected override void MergeCells(ExcelMergeParameters excelParams)
+        {
+            if (_worksheet == null)
+            {
+                return;
+            }
+
+            MergeCells mergeCells;
+
+            if (_worksheet.Elements<MergeCells>().Any())
+            {
+                mergeCells = _worksheet.Elements<MergeCells>().First();
+            }
+            else
+            {
+                mergeCells = new MergeCells();
+
+                if (_worksheet.Elements<CustomSheetView>().Any())
+                {
+                    _worksheet.InsertAfter(mergeCells, _worksheet.Elements<CustomSheetView>().First());
+                }
+                else
+                {
+                    _worksheet.InsertAfter(mergeCells, _worksheet.Elements<SheetData>().First());
+                }
+            }
+
+            var mergeCell = new MergeCell()
+            {
+                Reference = new StringValue(excelParams.Merge)
+            };
+
+            mergeCells.Append(mergeCell);
+        }
+
+        protected override void SaveExcel(ExcelInfo info)
+        {
+            if (_spreadsheetDocument == null)
+            {
+                return;
+            }
+
+            _spreadsheetDocument.WorkbookPart!.Workbook.Save();
+            _spreadsheetDocument.Dispose();
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/Implements/SaveToPdf.cs

@@ -0,0 +1,131 @@
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using MigraDoc.DocumentObjectModel;
+using MigraDoc.DocumentObjectModel.Tables;
+using MigraDoc.Rendering;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.Implements
+{
+    // Реализация абстрактного класса создания Pdf документа
+    public class SaveToPdf : AbstractSaveToPdf
+    {
+        private Document? _document;
+
+        private Section? _section;
+
+        private Table? _table;
+
+        // Преобразование необходимого типа выравнивания в соотвествующее выравнивание в MigraDoc
+        private static ParagraphAlignment GetParagraphAlignment(PdfParagraphAlignmentType type)
+        {
+            return type switch
+            {
+                PdfParagraphAlignmentType.Center => ParagraphAlignment.Center,
+                PdfParagraphAlignmentType.Left => ParagraphAlignment.Left,
+                PdfParagraphAlignmentType.Right => ParagraphAlignment.Right,
+                _ => ParagraphAlignment.Justify,
+            };
+        }
+
+        // Создание стилей для документа
+        private static void DefineStyles(Document document)
+        {
+            var style = document.Styles["Normal"];
+
+            style.Font.Name = "Times New Roman";
+            style.Font.Size = 14;
+
+            style = document.Styles.AddStyle("NormalTitle", "Normal");
+            style.Font.Bold = true;
+        }
+
+        protected override void CreatePdf(PdfInfo info)
+        {
+            // Создаём документ
+            _document = new Document();
+
+            // Передаём для него стили
+            DefineStyles(_document);
+
+            // Получение первой секции документа
+            _section = _document.AddSection();
+        }
+
+        protected override void CreateParagraph(PdfParagraph pdfParagraph)
+        {
+            if (_section == null)
+            {
+                return;
+            }
+
+            var paragraph = _section.AddParagraph(pdfParagraph.Text);
+            paragraph.Format.SpaceAfter = "1cm";
+            paragraph.Format.Alignment = GetParagraphAlignment(pdfParagraph.ParagraphAlignment);
+            paragraph.Style = pdfParagraph.Style;
+        }
+
+        protected override void CreateTable(List<string> columns)
+        {
+            if (_document == null)
+            {
+                return;
+            }
+
+            // Добавляем таблицу в документ как последнюю секцию (?)
+            _table = _document.LastSection.AddTable();
+
+            foreach (var elem in columns)
+            {
+                _table.AddColumn(elem);
+            }
+        }
+
+        protected override void CreateRow(PdfRowParameters rowParameters)
+        {
+            if (_table == null)
+            {
+                return;
+            }
+
+            // Добавление строки в таблицу
+            var row = _table.AddRow();
+
+            for (int i = 0; i < rowParameters.Texts.Count; ++i)
+            {
+                // Ячейка добавляется добавлением параграфа
+                row.Cells[i].AddParagraph(rowParameters.Texts[i]);
+
+                if (!string.IsNullOrEmpty(rowParameters.Style))
+                {
+                    row.Cells[i].Style = rowParameters.Style;
+                }
+
+                Unit borderWidth = 0.5;
+
+                row.Cells[i].Borders.Left.Width = borderWidth;
+                row.Cells[i].Borders.Right.Width = borderWidth;
+                row.Cells[i].Borders.Top.Width = borderWidth;
+                row.Cells[i].Borders.Bottom.Width = borderWidth;
+
+                row.Cells[i].Format.Alignment = GetParagraphAlignment(rowParameters.ParagraphAlignment);
+                row.Cells[i].VerticalAlignment = VerticalAlignment.Center;
+            }
+        }
+
+        protected override void SavePdf(PdfInfo info)
+        {
+            var renderer = new PdfDocumentRenderer(true)
+            {
+                Document = _document
+            };
+
+            renderer.RenderDocument();
+            renderer.PdfDocument.Save(info.FileName);
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyBusinessLogic/OfficePackage/Implements/SaveToWord.cs

@@ -0,0 +1,256 @@
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Wordprocessing;
+using DocumentFormat.OpenXml;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperEnums;
+using FurnitureAssemblyBusinessLogic.OfficePackage.HelperModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyBusinessLogic.OfficePackage.Implements
+{
+    // Реализация абстрактного класса сохранения в Word документ
+    public class SaveToWord : AbstractSaveToWord
+    {
+        private WordprocessingDocument? _wordDocument;
+
+        private Body? _docBody;
+
+        // Получение типа выравнивания
+        private static JustificationValues GetJustificationValues(WordJustificationType type)
+        {
+            // Выравнивание слева будет в том случае, если передаётся неизвестный тип выравнивания
+            return type switch
+            {
+                WordJustificationType.Both => JustificationValues.Both,
+                WordJustificationType.Center => JustificationValues.Center,
+                _ => JustificationValues.Left,
+            };
+        }
+
+        // Настройки страницы
+        private static SectionProperties CreateSectionProperties()
+        {
+            var properties = new SectionProperties();
+
+            // Прописываем портретную ориентацию
+            var pageSize = new PageSize
+            {
+                Orient = PageOrientationValues.Portrait
+            };
+
+            properties.AppendChild(pageSize);
+
+            return properties;
+        }
+
+        // Задание форматирования для абзаца
+        private static ParagraphProperties? CreateParagraphProperties(WordTextProperties? paragraphProperties)
+        {
+            if (paragraphProperties == null)
+            {
+                return null;
+            }
+
+            var properties = new ParagraphProperties();
+
+            // Вытаскиваем выравнивание текста
+            properties.AppendChild(new Justification()
+            {
+                Val = GetJustificationValues(paragraphProperties.JustificationType)
+            });
+
+            properties.AppendChild(new SpacingBetweenLines
+            {
+                LineRule = LineSpacingRuleValues.Auto
+            });
+
+            properties.AppendChild(new Indentation());
+
+            var paragraphMarkRunProperties = new ParagraphMarkRunProperties();
+
+            if (!string.IsNullOrEmpty(paragraphProperties.Size))
+            {
+                paragraphMarkRunProperties.AppendChild(new FontSize { Val = paragraphProperties.Size });
+            }
+
+            properties.AppendChild(paragraphMarkRunProperties);
+
+            return properties;
+        }
+
+        protected override void CreateWord(WordInfo info)
+        {
+            // Создаём документ Word
+            _wordDocument = WordprocessingDocument.Create(info.FileName, WordprocessingDocumentType.Document);
+
+            // Вытаскиваем главную часть из вордовского документа
+            MainDocumentPart mainPart = _wordDocument.AddMainDocumentPart();
+
+            mainPart.Document = new Document();
+
+            // Генерируем тело основной части документа
+            _docBody = mainPart.Document.AppendChild(new Body());
+        }
+
+        protected override void CreateParagraph(WordParagraph paragraph)
+        {
+            // Проверка на то, был ли вызван WordprocessingDocument.Create (создался ли документ) и есть ли вообще параграф для вставки
+            if (_docBody == null || paragraph == null)
+            {
+                return;
+            }
+
+            var docParagraph = new Paragraph();
+
+            // Добавляем свойства параграфа
+            docParagraph.AppendChild(CreateParagraphProperties(paragraph.TextProperties));
+
+            // Вставляем блоки текста (их называют Run)
+            foreach (var run in paragraph.Texts)
+            {
+                var docRun = new Run();
+                var properties = new RunProperties();
+
+                // Задание свойств текста - размер и жирность
+                properties.AppendChild(new FontSize { Val = run.Item2.Size });
+
+                if (run.Item2.Bold)
+                {
+                    properties.AppendChild(new Bold());
+                }
+
+                docRun.AppendChild(properties);
+
+                docRun.AppendChild(new Text { Text = run.Item1, Space = SpaceProcessingModeValues.Preserve });
+
+                docParagraph.AppendChild(docRun);
+            }
+
+            _docBody.AppendChild(docParagraph);
+        }
+
+        // Метод сохранения документа
+        protected override void SaveWord(WordInfo info)
+        {
+            if (_docBody == null || _wordDocument == null)
+            {
+                return;
+            }
+
+            // Вставляем информацию по секциям (смотри, что является входным параметром)
+            _docBody.AppendChild(CreateSectionProperties());
+
+            // Сохраняем документ
+            _wordDocument.MainDocumentPart!.Document.Save();
+
+            _wordDocument.Dispose();
+        }
+
+        protected override void CreateTable(WordTable table)
+        {
+            if (_docBody == null || table == null)
+            {
+                return;
+            }
+
+            Table tab = new Table();
+
+            TableProperties props = new TableProperties(
+               new TableBorders(
+                   new TopBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   },
+
+                   new BottomBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   },
+
+                   new LeftBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   },
+
+                   new RightBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   },
+
+                   new InsideHorizontalBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   },
+
+                   new InsideVerticalBorder
+                   {
+                       Val = new EnumValue<BorderValues>(BorderValues.Single),
+                       Size = 12
+                   })
+            );
+
+            tab.AppendChild<TableProperties>(props);
+            TableGrid tableGrid = new TableGrid();
+
+            for (int i = 0; i < table.Headers.Count; i++)
+            {
+                tableGrid.AppendChild(new GridColumn());
+            }
+
+            tab.AppendChild(tableGrid);
+            TableRow tableRow = new TableRow();
+
+            foreach (var text in table.Headers)
+            {
+                tableRow.AppendChild(CreateTableCell(text));
+            }
+
+            tab.AppendChild(tableRow);
+
+            int height = table.Texts.Count / table.Headers.Count;
+            int width = table.Headers.Count;
+            
+            for (int i = 0; i < height; i++)
+            {
+                tableRow = new TableRow();
+
+                for (int j = 0; j < width; j++)
+                {
+                    var element = table.Texts[i * table.Headers.Count + j];
+                    tableRow.AppendChild(CreateTableCell(element));
+                }
+
+                tab.AppendChild(tableRow);
+            }
+
+            _docBody.AppendChild(tab);
+
+        }
+
+        private TableCell CreateTableCell(string element)
+        {
+            var tableParagraph = new Paragraph();
+
+            var run = new Run();
+
+            run.AppendChild(new Text 
+            { 
+                Text = element 
+            });
+
+            tableParagraph.AppendChild(run);
+            var tableCell = new TableCell();
+            tableCell.AppendChild(tableParagraph);
+
+            return tableCell;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BindingModels/FurnitureBindingModel.cs

@@ -0,0 +1,21 @@
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BindingModels
+{
+    // Реализация сущности "Изделие"
+    public class FurnitureBindingModel : IFurnitureModel
+    {
+        public int Id { get; set; }
+
+        public string FurnitureName { get; set; } = string.Empty;
+
+        public double Price {  get; set; }
+
+        public Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,27 @@
+using FurnitureAssemblyDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BindingModels
+{
+    // Реализация сущности "Заказ"
+    public class OrderBindingModel
+    {
+        public int Id { get; set; }
+
+        public int FurnitureId { 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; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BindingModels/ReportBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BindingModels
+{
+    // Реализация сущности "Отчёт"
+    public class ReportBindingModel
+    {
+        public string FileName { get; set; } = string.Empty;
+
+        public DateTime? DateFrom { get; set; }
+
+        public DateTime? DateTo { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BindingModels/ShopBindingModel.cs

@@ -0,0 +1,25 @@
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BindingModels
+{
+    // Реализация сущности "Магазин"
+    public class ShopBindingModel : IShopModel
+    {
+        public string ShopName { get; set; } = string.Empty;
+
+        public string Address { get; set; } = string.Empty;
+
+        public DateTime DateOpen { get; set; } = DateTime.Now;
+
+        public Dictionary<int, (IFurnitureModel, int)> ShopFurnitures { get; set; } = new();
+
+        public int Id { get; set; }
+
+        public int MaxCountFurnitures { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BindingModels/WorkPieceBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BindingModels
+{
+    // Реализация сущности "Компонент"
+    public class WorkPieceBindingModel
+    {
+        public int Id { get; set; }
+
+        public string WorkPieceName { get; set; } = string.Empty;
+
+        public double Cost { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BusinessLogicsContracts/IFurnitureLogic.cs

@@ -0,0 +1,25 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BusinessLogicsContracts
+{
+    // Бизнес-логика для продуктов
+    public interface IFurnitureLogic
+    {
+        List<FurnitureViewModel>? ReadList(FurnitureSearchModel? model);
+
+        FurnitureViewModel? ReadElement(FurnitureSearchModel model);
+
+        bool Create(FurnitureBindingModel model);
+
+        bool Update(FurnitureBindingModel model);
+
+        bool Delete(FurnitureBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,25 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BusinessLogicsContracts
+{
+    // Бизнес-логика заказов
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+
+        bool CreateOrder(OrderBindingModel model);
+
+        bool TakeOrderInWork(OrderBindingModel model);
+
+        bool FinishOrder(OrderBindingModel model);
+
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BusinessLogicsContracts/IReportLogic.cs

@@ -0,0 +1,43 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BusinessLogicsContracts
+{
+    public interface IReportLogic
+    {
+        // Получение списка заготовок с указанием, в каких изделиях используются
+        List<ReportFurnitureWorkPieceViewModel> GetFurnitureWorkPiece();
+
+        //Получение списка мороженых с указанием, в каких магазинах в наличии
+        List<ReportShopFurnituresViewModel> GetShopFurnitures();
+
+        // Получение списка заказов за определённый период
+        List<ReportOrdersViewModel> GetOrders(ReportBindingModel model);
+
+        //Получение списка заказов за весь период
+        List<ReportGroupedOrdersViewModel> GetGroupedOrders();
+
+        // Сохранение изделий в файл-Word
+        void SaveFurnituresToWordFile(ReportBindingModel model);
+
+        //Сохранение магазинов в виде таблицы в файл-Word
+        void SaveShopsToWordFile(ReportBindingModel model);
+
+        // Сохранение заготовок с указанием изделий в файл-Excel
+        void SaveFurnitureWorkPieceToExcelFile(ReportBindingModel model);
+
+        //Сохранение магазинов с указанием мороженых в файл-Excel
+        void SaveShopFurnituresToExcelFile(ReportBindingModel model);
+
+        // Сохранение заказов в файл-Pdf
+        void SaveOrdersToPdfFile(ReportBindingModel model);
+
+        //Сохранение заказов за весь период в файл-Pdf
+        void SaveGroupedOrdersToPdfFile(ReportBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -0,0 +1,32 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BusinessLogicsContracts
+{
+    // Бизнес-логика для магазина
+    public interface IShopLogic
+    {
+        List<ShopViewModel>? ReadList(ShopSearchModel? model);
+
+        ShopViewModel? ReadElement(ShopSearchModel model);
+
+        bool Create(ShopBindingModel model);
+
+        bool Update(ShopBindingModel model);
+
+        bool Delete(ShopBindingModel model);
+
+        bool AddFurniture(ShopSearchModel model, IFurnitureModel furniture, int count);
+
+        bool SellFurnitures(IFurnitureModel model, int count);
+
+        bool AddFurnitures(IFurnitureModel model, int count);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/BusinessLogicsContracts/IWorkPieceLogic.cs

@@ -0,0 +1,25 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.BusinessLogicsContracts
+{
+    // Бизнес-логика для компонентов
+    public interface IWorkPieceLogic
+    {
+        List<WorkPieceViewModel>? ReadList(WorkPieceSearchModel? model);
+
+        WorkPieceViewModel? ReadElement(WorkPieceSearchModel model);
+
+        bool Create(WorkPieceBindingModel model);
+
+        bool Update(WorkPieceBindingModel model);
+
+        bool Delete(WorkPieceBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/FurnitureAssemblyContracts.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="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyContracts/SearchModels/FurnitureSearchModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.SearchModels
+{
+    // Модель для поиска заготовки "Продукт" (она же изделие)
+    public class FurnitureSearchModel
+    {
+        // для поиска по идентификатору
+        public int? Id { get; set; }
+
+        // для поиска по названию
+        public string? FurnitureName { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.SearchModels
+{
+    // Для поиска сущности "Заказ"
+    public class OrderSearchModel
+    {
+        // для поиска по идентификатору
+        public int? Id { get; set; }
+
+        // Два поля для возможности производить выборку
+        public DateTime? DateFrom { get; set; }
+
+        public DateTime? DateTo { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/SearchModels/ShopSearchModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.SearchModels
+{
+    // Для поиска сущности "Магазин"
+    public class ShopSearchModel
+    {
+        // Для поиска по идентификатору
+        public int? Id { get; set; }
+
+        // Для поиска по названию
+        public string? ShopName { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/SearchModels/WorkPieceSearchModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.SearchModels
+{
+    // Модель для поиска сущности "Компонент" (она же заготовка) 
+    public class WorkPieceSearchModel
+    {
+        //для поиска по идентификатору
+        public int? Id { get; set; }
+
+        //для поиска по названию
+        public string? WorkPieceName { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/StoragesContracts/IFurnitureStorage.cs

@@ -0,0 +1,27 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.StoragesContracts
+{
+    // Класс для хранилища продуктов (изделий)
+    public interface IFurnitureStorage
+    {
+        List<FurnitureViewModel> GetFullList();
+
+        List<FurnitureViewModel> GetFilteredList(FurnitureSearchModel model);
+
+        FurnitureViewModel? GetElement(FurnitureSearchModel model);
+
+        FurnitureViewModel? Insert(FurnitureBindingModel model);
+
+        FurnitureViewModel? Update(FurnitureBindingModel model);
+
+        FurnitureViewModel? Delete(FurnitureBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,27 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.StoragesContracts
+{
+    // Класс для хранилища заказов
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+
+        OrderViewModel? GetElement(OrderSearchModel model);
+
+        OrderViewModel? Insert(OrderBindingModel model);
+
+        OrderViewModel? Update(OrderBindingModel model);
+
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/StoragesContracts/IShopStorage.cs

@@ -0,0 +1,30 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.StoragesContracts
+{
+    // Класс для хранилища магазинов
+    public interface IShopStorage
+    {
+        List<ShopViewModel> GetFullList();
+
+        List<ShopViewModel> GetFilteredList(ShopSearchModel model);
+
+        ShopViewModel? GetElement(ShopSearchModel model);
+
+        ShopViewModel? Insert(ShopBindingModel model);
+
+        ShopViewModel? Update(ShopBindingModel model);
+
+        ShopViewModel? Delete(ShopBindingModel model);
+
+        bool SellFurnitures(IFurnitureModel model, int count);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/StoragesContracts/IWorkPieceStorage.cs

@@ -0,0 +1,27 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.StoragesContracts
+{
+    // Класс хранилища компонентов (заготовок)
+    public interface IWorkPieceStorage
+    {
+        List<WorkPieceViewModel> GetFullList();
+
+        List<WorkPieceViewModel> GetFilteredList(WorkPieceSearchModel model);
+
+        WorkPieceViewModel? GetElement(WorkPieceSearchModel model);
+
+        WorkPieceViewModel? Insert(WorkPieceBindingModel model);
+
+        WorkPieceViewModel? Update(WorkPieceBindingModel model);
+
+        WorkPieceViewModel? Delete(WorkPieceBindingModel model);
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/FurnitureViewModel.cs

@@ -0,0 +1,24 @@
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    // Класс для отображения пользователю информации о продуктах (изделиях)
+    public class FurnitureViewModel : IFurnitureModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название изделия")]
+        public string FurnitureName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+
+        public Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,38 @@
+using FurnitureAssemblyDataModels.Enums;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    // Класс для отображения пользователю информации о заказах
+    public class OrderViewModel : IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+
+        public int FurnitureId { get; set; }
+
+        [DisplayName("Изделие")]
+        public string FurnitureName { 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; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/ReportFurnitureWorkPieceViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    public class ReportFurnitureWorkPieceViewModel
+    {
+        public string FurnitureName { get; set; } = string.Empty;
+
+        public int TotalCount { get; set; }
+
+        // Список кортежей
+        public List<(string WorkPiece, int Count)> WorkPieces { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/ReportGroupedOrdersViewModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    public class ReportGroupedOrdersViewModel
+    {
+        public DateTime DateCreate { get; set; }
+
+        public int Count { get; set; }
+
+        public double Sum { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/ReportOrdersViewModel.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    public class ReportOrdersViewModel
+    {
+        public int Id { get; set; }
+
+        public DateTime DateCreate { get; set; }
+
+        public string FurnitureName { get; set; } = string.Empty;
+
+        public double Sum { get; set; }
+
+        public string OrderStatus { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/ReportShopFurnituresViewModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    public class ReportShopFurnituresViewModel
+    {
+        public string ShopName { get; set; } = string.Empty;
+
+        public int TotalCount { get; set; }
+
+        public List<Tuple<string, int>> Furnitures { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,30 @@
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    // Класс для отображения пользователю информации о магазинах
+    public class ShopViewModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название магазина")]
+        public string ShopName { get; set; } = string.Empty;
+
+        [DisplayName("Адрес магазина")]
+        public string Address { get; set; } = string.Empty;
+
+        [DisplayName("Дата открытия")]
+        public DateTime DateOpen { get; set; } = DateTime.Now;
+
+        public Dictionary<int, (IFurnitureModel, int)> ShopFurnitures { get; set; } = new();
+
+        [DisplayName("Вместимость магазина")]
+        public int MaxCountFurnitures { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyContracts/ViewModels/WorkPieceViewModel.cs

@@ -0,0 +1,22 @@
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyContracts.ViewModels
+{
+    // Класс для отображения пользователю данных о заготовке (заготовках)
+    public class WorkPieceViewModel : IWorkPieceModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название заготовки")]
+        public string WorkPieceName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Cost { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels.Enums
+{
+    // Статус заказа
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+
+        Принят = 0,
+
+        Выполняется = 1,
+
+        Готов = 2,
+
+        Выдан = 3
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/FurnitureAssemblyDataModels.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyDataModels/IId.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels
+{
+    // Интерфейс, отвечающий за id у компонентов, продуктов и чеков
+    public interface IId
+    {
+        int Id { get; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/Models/IFurnitureModel.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels.Models
+{
+    // Интерфейс, отвечающий за продукт
+    public interface IFurnitureModel : IId
+    {
+        // наименование изделия 
+        string FurnitureName { get; }
+
+        // цена изделия 
+        double Price { get; }
+
+        // словарь, хранящий пары кол-во + компонент и его цена
+        Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces { get; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/Models/IOrderModel.cs

@@ -0,0 +1,31 @@
+using FurnitureAssemblyDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels.Models
+{
+    // Интерфейс, отвечающий за заказ
+    public interface IOrderModel : IId
+    {
+        // id продукта
+        int FurnitureId { get; }
+
+        // кол-во продуктов
+        int Count { get; }
+
+        // суммарная стоимость продуктов
+        double Sum { get; }
+
+        // статус заказа
+        OrderStatus Status { get; }
+
+        //дата создания заказа
+        DateTime DateCreate { get; }
+
+        //дата завершения заказа (не обязательна к указанию сразу)
+        DateTime? DateImplement { get; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/Models/IShopModel.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels.Models
+{
+    // Интерфейс сущности "Магазин"
+    public interface IShopModel : IId
+    {
+        // Название магазина
+        string ShopName { get; }
+
+        // Адрес магазина
+        string Address { get; }
+
+        // Дата открытия магазина
+        DateTime DateOpen { get; }
+
+        //максимальное кол-во изделий в магазине
+        int MaxCountFurnitures { get; }
+
+        // Изделия в магазине
+        Dictionary<int, (IFurnitureModel, int)> ShopFurnitures { get; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDataModels/Models/IWorkPieceModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDataModels.Models
+{
+    // Интерфейс, отвечающий за компоненты
+    public interface IWorkPieceModel : IId
+    {
+        // название составляющей (изделие состоит из составляющих)
+        string WorkPieceName { get; }
+
+        // цена составляющей
+        double Cost { get; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/FurnitureAssemblyDatabase.cs

@@ -0,0 +1,35 @@
+using FurnitureAssemblyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement
+{
+    public class FurnitureAssemblyDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=KatanaNik\SQLEXPRESS;Initial Catalog=FurnitureAssemblyDatabaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+
+            base.OnConfiguring(optionsBuilder);
+        }
+
+        public virtual DbSet<WorkPiece> WorkPieces { set; get; }
+
+        public virtual DbSet<Furniture> Furnitures { set; get; }
+
+        public virtual DbSet<FurnitureWorkPiece> FurnitureWorkPieces { set; get; }
+
+        public virtual DbSet<Order> Orders { set; get; }
+
+        public virtual DbSet<Shop> Shops { set; get; }
+
+        public virtual DbSet<ShopFurniture> ShopFurnitures { get; set; }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/FurnitureAssemblyDatabaseImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.16" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.16" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.16">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
+    <ProjectReference Include="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Implements/FurnitureStorage.cs

@@ -0,0 +1,127 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Implements
+{
+    public class FurnitureStorage : IFurnitureStorage
+    {
+        public List<FurnitureViewModel> GetFullList()
+        {
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Furnitures
+                .Include(x => x.WorkPieces)
+                .ThenInclude(x => x.WorkPiece)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<FurnitureViewModel> GetFilteredList(FurnitureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.FurnitureName))
+            {
+                return new();
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Furnitures
+                .Include(x => x.WorkPieces)
+                .ThenInclude(x => x.WorkPiece)
+                .Where(x => x.FurnitureName.Contains(model.FurnitureName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public FurnitureViewModel? GetElement(FurnitureSearchModel model)
+        {
+            if(string.IsNullOrEmpty(model.FurnitureName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Furnitures
+                .Include(x => x.WorkPieces)
+                .ThenInclude(x => x.WorkPiece)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.FurnitureName) && x.FurnitureName == model.FurnitureName) ||
+                        model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+        }
+
+        public FurnitureViewModel? Insert(FurnitureBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var newFurniture = Furniture.Create(context, model);
+
+            if (newFurniture == null)
+            {
+                return null;
+            }
+
+            context.Furnitures.Add(newFurniture);
+            context.SaveChanges();
+
+            return newFurniture.GetViewModel;
+        }
+
+        public FurnitureViewModel? Update(FurnitureBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            using var transaction = context.Database.BeginTransaction();
+
+            try
+            {
+                var furniture = context.Furnitures.FirstOrDefault(rec => rec.Id == model.Id);
+
+                if (furniture == null)
+                {
+                    return null;
+                }
+
+                furniture.Update(model);
+                context.SaveChanges();
+                furniture.UpdateWorkPieces(context, model);
+                transaction.Commit();
+
+                return furniture.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public FurnitureViewModel? Delete(FurnitureBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var element = context.Furnitures
+                .Include(x => x.WorkPieces)
+                .Include(x => x.Orders)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Furnitures.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,119 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Orders.Include(x => x.Furniture).
+                FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if(!model.Id.HasValue && !model.DateFrom.HasValue && !model.DateTo.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            if (!model.Id.HasValue && model.DateFrom.HasValue && model.DateTo.HasValue)
+            {
+                return context.Orders
+                    .Include(x => x.Furniture)
+                    .Where(x => x.DateCreate >= model.DateFrom && x.DateCreate <= model.DateTo)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+
+            return context.Orders
+                .Include(x => x.Furniture)
+                .Where(x => x.Id == model.Id)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Orders.Include(x => x.Furniture)
+                .Select(x => x.GetViewModel).ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+
+            return context.Orders.Include(x => x.Furniture)
+                .FirstOrDefault(x => x.Id == newOrder.Id)?.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            context.SaveChanges();
+
+            return context.Orders.Include(x => x.Furniture).FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var element = context.Orders.Include(x => x.Furniture).FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                // для отображения корректной ViewModel-и
+                var deletedElement = context.Orders
+                    .Include(x => x.Furniture)
+                    .FirstOrDefault(x => x.Id == model.Id)
+                    ?.GetViewModel;
+
+                context.Orders.Remove(element);
+                context.SaveChanges();
+
+                return deletedElement;
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,179 @@
+using FurnitureAssemblyDatabaseImplement.Models;
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Shops
+                    .Include(x => x.Furnitures)
+                    .ThenInclude(x => x.Furniture)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Shops
+                    .Include(x => x.Furnitures)
+                    .ThenInclude(x => x.Furniture)
+                    .Where(x => x.ShopName.Contains(model.ShopName))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.Shops
+                .Include(x => x.Furnitures)
+                .ThenInclude(x => x.Furniture)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
+                                (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var newShop = Shop.Create(context, model);
+
+            if (newShop == null)
+            {
+                return null;
+            }
+
+            context.Shops.Add(newShop);
+            context.SaveChanges();
+
+            return newShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            using var transaction = context.Database.BeginTransaction();
+
+            try
+            {
+                var shop = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
+
+                if (shop == null)
+                {
+                    return null;
+                }
+
+                shop.Update(model);
+                context.SaveChanges();
+                shop.UpdateFurnitures(context, model);
+                transaction.Commit();
+
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+
+                throw;
+            }
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+
+            var element = context.Shops
+                .Include(x => x.Furnitures)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public bool SellFurnitures(IFurnitureModel model, int count)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            using var transaction = context.Database.BeginTransaction();
+
+            try
+            {
+                var shops = context.ShopFurnitures
+                    .Include(x => x.Shop)
+                    .ToList()
+                    .Where(rec => rec.FurnitureId == model.Id);
+
+                if (shops == null)
+                {
+                    return false;
+                }
+
+                foreach (var shop in shops)
+                {
+                    if (shop.Count < count)
+                    {
+                        count -= shop.Count;
+                        shop.Count = 0;
+                    }
+                    else
+                    {
+                        shop.Count = shop.Count - count;
+                        count -= count;
+                    }
+
+                    if (count == 0)
+                    {
+                        context.SaveChanges();
+                        transaction.Commit();
+
+                        return true;
+                    }
+                }
+
+                transaction.Rollback();
+
+                return false;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Implements/WorkPieceStorage.cs

@@ -0,0 +1,102 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Implements
+{
+    public class WorkPieceStorage : IWorkPieceStorage
+    {
+        public List<WorkPieceViewModel> GetFullList()
+        {
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.WorkPieces
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<WorkPieceViewModel> GetFilteredList(WorkPieceSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkPieceName))
+            {
+                return new();
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.WorkPieces
+                .Where(x => x.WorkPieceName.Contains(model.WorkPieceName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public WorkPieceViewModel? GetElement(WorkPieceSearchModel model)
+        {
+            if(string.IsNullOrEmpty(model.WorkPieceName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+
+            return context.WorkPieces
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkPieceName) && x.WorkPieceName == model.WorkPieceName) ||
+                    (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Insert(WorkPieceBindingModel model)
+        {
+            var newWorkPiece = WorkPiece.Create(model);
+
+            if(newWorkPiece == null)
+            {
+                return null;
+            }
+
+            using var context = new FurnitureAssemblyDatabase();
+            context.WorkPieces.Add(newWorkPiece);
+            context.SaveChanges();
+
+            return newWorkPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Update(WorkPieceBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var workPiece = context.WorkPieces.FirstOrDefault(x => x.Id == model.Id);
+
+            if (workPiece == null)
+            {
+                return null;
+            }
+
+            workPiece.Update(model);
+            context.SaveChanges();
+
+            return workPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Delete(WorkPieceBindingModel model)
+        {
+            using var context = new FurnitureAssemblyDatabase();
+            var element = context.WorkPieces.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if(element != null)
+            {
+                context.WorkPieces.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Migrations/20240503080524_InitialCreate.Designer.cs

@@ -0,0 +1,250 @@
+// <auto-generated />
+using System;
+using FurnitureAssemblyDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FurnitureAssemblyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(FurnitureAssemblyDatabase))]
+    [Migration("20240503080524_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Furniture", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("FurnitureName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Furnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.FurnitureWorkPiece", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("WorkPieceId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.HasIndex("WorkPieceId");
+
+                    b.ToTable("FurnitureWorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountFurnitures")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.ShopFurniture", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopFurnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("WorkPieceName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("WorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.FurnitureWorkPiece", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("WorkPieces")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", "WorkPiece")
+                        .WithMany("FurnitureWorkPieces")
+                        .HasForeignKey("WorkPieceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+
+                    b.Navigation("WorkPiece");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("Orders")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.ShopFurniture", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("Shops")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Furnitures")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Furniture", b =>
+                {
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+
+                    b.Navigation("WorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Furnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", b =>
+                {
+                    b.Navigation("FurnitureWorkPieces");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Migrations/20240503080524_InitialCreate.cs

@@ -0,0 +1,184 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FurnitureAssemblyDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Furnitures",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    FurnitureName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Furnitures", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Address = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    DateOpen = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    MaxCountFurnitures = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "WorkPieces",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkPieceName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_WorkPieces", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    FurnitureId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Furnitures_FurnitureId",
+                        column: x => x.FurnitureId,
+                        principalTable: "Furnitures",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopFurnitures",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    FurnitureId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopFurnitures", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopFurnitures_Furnitures_FurnitureId",
+                        column: x => x.FurnitureId,
+                        principalTable: "Furnitures",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopFurnitures_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "FurnitureWorkPieces",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    FurnitureId = table.Column<int>(type: "int", nullable: false),
+                    WorkPieceId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_FurnitureWorkPieces", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_FurnitureWorkPieces_Furnitures_FurnitureId",
+                        column: x => x.FurnitureId,
+                        principalTable: "Furnitures",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_FurnitureWorkPieces_WorkPieces_WorkPieceId",
+                        column: x => x.WorkPieceId,
+                        principalTable: "WorkPieces",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_FurnitureWorkPieces_FurnitureId",
+                table: "FurnitureWorkPieces",
+                column: "FurnitureId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_FurnitureWorkPieces_WorkPieceId",
+                table: "FurnitureWorkPieces",
+                column: "WorkPieceId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_FurnitureId",
+                table: "Orders",
+                column: "FurnitureId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopFurnitures_FurnitureId",
+                table: "ShopFurnitures",
+                column: "FurnitureId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopFurnitures_ShopId",
+                table: "ShopFurnitures",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "FurnitureWorkPieces");
+
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "ShopFurnitures");
+
+            migrationBuilder.DropTable(
+                name: "WorkPieces");
+
+            migrationBuilder.DropTable(
+                name: "Furnitures");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Migrations/FurnitureAssemblyDatabaseModelSnapshot.cs

@@ -0,0 +1,247 @@
+// <auto-generated />
+using System;
+using FurnitureAssemblyDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FurnitureAssemblyDatabaseImplement.Migrations
+{
+    [DbContext(typeof(FurnitureAssemblyDatabase))]
+    partial class FurnitureAssemblyDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Furniture", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("FurnitureName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Furnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.FurnitureWorkPiece", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("WorkPieceId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.HasIndex("WorkPieceId");
+
+                    b.ToTable("FurnitureWorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountFurnitures")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.ShopFurniture", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FurnitureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("FurnitureId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopFurnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("WorkPieceName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("WorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.FurnitureWorkPiece", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("WorkPieces")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", "WorkPiece")
+                        .WithMany("FurnitureWorkPieces")
+                        .HasForeignKey("WorkPieceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+
+                    b.Navigation("WorkPiece");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("Orders")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.ShopFurniture", b =>
+                {
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Furniture", "Furniture")
+                        .WithMany("Shops")
+                        .HasForeignKey("FurnitureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FurnitureAssemblyDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Furnitures")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Furniture");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Furniture", b =>
+                {
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+
+                    b.Navigation("WorkPieces");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Furnitures");
+                });
+
+            modelBuilder.Entity("FurnitureAssemblyDatabaseImplement.Models.WorkPiece", b =>
+                {
+                    b.Navigation("FurnitureWorkPieces");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/Furniture.cs

@@ -0,0 +1,119 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class Furniture : IFurnitureModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string FurnitureName { get; set; } = string.Empty;
+
+        [Required]
+        public double Price { get; set; }
+
+        public Dictionary<int, (IWorkPieceModel, int)>? _furnitureWorkPieces = null;
+
+        // Это поле не будет "мапиться" в бд
+        [NotMapped]
+        public Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces
+        {
+            get
+            {
+                if(_furnitureWorkPieces == null)
+                {
+                    _furnitureWorkPieces = WorkPieces
+                        .ToDictionary(recPC => recPC.WorkPieceId, recPC => (recPC.WorkPiece as IWorkPieceModel, recPC.Count));
+                }
+
+                return _furnitureWorkPieces;
+            }
+        }
+
+        // Для реализации связи многие ко многим с заготовками
+        [ForeignKey("FurnitureId")]
+        public virtual List<FurnitureWorkPiece> WorkPieces { get; set; } = new();
+
+        [ForeignKey("FurnitureId")]
+        public virtual List<Order> Orders { get; set; } = new();
+
+        [ForeignKey("FurnitureId")]
+        public virtual List<ShopFurniture> Shops { get; set; } = new();
+
+        public static Furniture Create(FurnitureAssemblyDatabase context, FurnitureBindingModel model)
+        {
+            return new Furniture()
+            {
+                Id = model.Id,
+                FurnitureName = model.FurnitureName,
+                Price = model.Price,
+                WorkPieces = model.FurnitureWorkPieces.Select(x => new FurnitureWorkPiece
+                {
+                    WorkPiece = context.WorkPieces.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(FurnitureBindingModel model)
+        {
+            FurnitureName = model.FurnitureName;
+            Price = model.Price;
+        }
+
+        public FurnitureViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureName = FurnitureName,
+            Price = Price,
+            FurnitureWorkPieces = FurnitureWorkPieces
+        };
+
+        public void UpdateWorkPieces(FurnitureAssemblyDatabase context, FurnitureBindingModel model)
+        {
+            var furnitureWorkPieces = context.FurnitureWorkPieces.Where(rec => rec.FurnitureId == model.Id).ToList();
+
+            if(furnitureWorkPieces != null && furnitureWorkPieces.Count > 0)
+            {
+                // удалили те, которых нет в модели
+                context.FurnitureWorkPieces.RemoveRange(furnitureWorkPieces.Where(rec => !model.FurnitureWorkPieces.ContainsKey(rec.FurnitureId)));
+                context.SaveChanges();
+
+                // обновили количество у существующих записей
+                foreach (var updateFurniture in furnitureWorkPieces)
+                {
+                    updateFurniture.Count = model.FurnitureWorkPieces[updateFurniture.FurnitureId].Item2;
+                    model.FurnitureWorkPieces.Remove(updateFurniture.FurnitureId);
+                }
+
+                context.SaveChanges();
+            }
+
+            var furniture = context.Furnitures.First(x => x.Id == Id);
+
+            foreach(var fwp in model.FurnitureWorkPieces)
+            {
+                context.FurnitureWorkPieces.Add(new FurnitureWorkPiece
+                {
+                    Furniture = furniture,
+                    WorkPiece = context.WorkPieces.First(x => x.Id == fwp.Key),
+                    Count = fwp.Value.Item2
+                });
+
+                context.SaveChanges();
+            }
+
+            _furnitureWorkPieces = null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/FurnitureWorkPiece.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class FurnitureWorkPiece
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int FurnitureId { get; set; }
+
+        [Required]
+        public int WorkPieceId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual WorkPiece WorkPiece { get; set; } = new();
+
+        public virtual Furniture Furniture { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/Order.cs

@@ -0,0 +1,80 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Enums;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        [Required]
+        public int FurnitureId { get; private set; }
+
+        [Required]
+        public int Count { get; private set; }
+
+        [Required]
+        public double Sum { get; private set; }
+
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        // Для передачи названия изделия
+        public virtual Furniture Furniture { get; set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                FurnitureId = model.FurnitureId,
+                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,
+            FurnitureId = FurnitureId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            FurnitureName = Furniture.FurnitureName
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/Shop.cs

@@ -0,0 +1,121 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDatabaseImplement;
+using FurnitureAssemblyDatabaseImplement.Models;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string ShopName { get; set; } = string.Empty;
+
+        [Required]
+        public string Address { get; set; } = string.Empty;
+
+        [Required]
+        public DateTime DateOpen { get; set; }
+
+        [Required]
+        public int MaxCountFurnitures { get; set; }
+
+        private Dictionary<int, (IFurnitureModel, int)>? _shopFurnitures = null;
+
+        [Required]
+        public Dictionary<int, (IFurnitureModel, int)> ShopFurnitures
+        {
+            get
+            {
+                if (_shopFurnitures == null)
+                {
+                    _shopFurnitures = Furnitures.ToDictionary(recSI => recSI.FurnitureId, recSI => (recSI.Furniture as IFurnitureModel, recSI.Count));
+                }
+                return _shopFurnitures;
+            }
+        }
+
+        [ForeignKey("ShopId")]
+        public virtual List<ShopFurniture> Furnitures { get; set; } = new();
+
+        public static Shop? Create(FurnitureAssemblyDatabase context, ShopBindingModel model)
+        {
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpen = model.DateOpen,
+                Furnitures = model.ShopFurnitures.Select(x => new ShopFurniture
+                {
+                    Furniture = context.Furnitures.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList(),
+                MaxCountFurnitures = model.MaxCountFurnitures
+            };
+        }
+
+        public void Update(ShopBindingModel model)
+        {
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpen = model.DateOpen;
+            MaxCountFurnitures = model.MaxCountFurnitures;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            MaxCountFurnitures = MaxCountFurnitures,
+            ShopFurnitures = ShopFurnitures
+        };
+
+        public void UpdateFurnitures(FurnitureAssemblyDatabase context, ShopBindingModel model)
+        {
+            var shopFurnitures = context.ShopFurnitures.Where(rec => rec.ShopId == model.Id).ToList();
+
+            if (shopFurnitures != null && shopFurnitures.Count > 0)
+            {   // удалили те, которых нет в модели
+                context.ShopFurnitures.RemoveRange(shopFurnitures.Where(rec => !model.ShopFurnitures.ContainsKey(rec.FurnitureId)));
+                context.SaveChanges();
+
+                // обновили количество у существующих записей
+                foreach (var _shopFurnitures in shopFurnitures)
+                {
+                    _shopFurnitures.Count = model.ShopFurnitures[_shopFurnitures.FurnitureId].Item2;
+                    model.ShopFurnitures.Remove(_shopFurnitures.FurnitureId);
+                }
+
+                context.SaveChanges();
+            }
+
+            var shop = context.Shops.First(x => x.Id == Id);
+
+            foreach (var sm in model.ShopFurnitures)
+            {
+                context.ShopFurnitures.Add(new ShopFurniture
+                {
+                    Shop = shop,
+                    Furniture = context.Furnitures.First(x => x.Id == sm.Key),
+                    Count = sm.Value.Item2
+                });
+
+                context.SaveChanges();
+            }
+
+            _shopFurnitures = null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/ShopFurniture.cs

@@ -0,0 +1,28 @@
+using FurnitureAssemblyDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class ShopFurniture
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int ShopId { get; set; }
+
+        [Required]
+        public int FurnitureId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Shop Shop { get; set; } = new();
+
+        public virtual Furniture Furniture { get; set; } = new();
+    }
+}

FurnitureAssembly/FurnitureAssemblyDatabaseImplement/Models/WorkPiece.cs

@@ -0,0 +1,71 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyDatabaseImplement.Models
+{
+    public class WorkPiece : IWorkPieceModel
+    {
+        public int Id { get; private set; }
+
+        [Required]
+        public string WorkPieceName { get; private set; } = string.Empty;
+
+        [Required]
+        public double Cost { get; set; }
+
+        // для реализации связи многие ко многим с изделиями
+        [ForeignKey("WorkPieceId")]
+        public virtual List<FurnitureWorkPiece> FurnitureWorkPieces { get; set; } = new();
+
+        public static WorkPiece? Create(WorkPieceBindingModel model)
+        {
+            if(model == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = model.Id,
+                WorkPieceName = model.WorkPieceName,
+                Cost = model.Cost
+            };
+        }
+
+        public static WorkPiece Create(WorkPieceViewModel model)
+        {
+            return new WorkPiece
+            {
+                Id = model.Id,
+                WorkPieceName = model.WorkPieceName,
+                Cost = model.Cost
+            };
+        }
+
+        public void Update(WorkPieceBindingModel model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+
+            WorkPieceName = model.WorkPieceName;
+            Cost = model.Cost;
+        }
+
+        public WorkPieceViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkPieceName = WorkPieceName,
+            Cost = Cost
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/DataFileSingleton.cs

@@ -0,0 +1,75 @@
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+
+        private readonly string WorkPieceFileName = "WorkPiece.xml";
+
+        private readonly string OrderFileName = "Order.xml";
+
+        private readonly string FurnitureFileName = "Furniture.xml";
+
+        private readonly string ShopFileName = "Shop.xml";
+
+        public List<WorkPiece> WorkPieces { get; private set; }
+
+        public List<Order> Orders { get; private set; }
+
+        public List<Furniture> Furnitures { get; private set; }
+
+        public List<Shop> Shops { get; private set; }
+
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+
+            return instance;
+        }
+
+        public void SaveWorkPieces() => SaveData(WorkPieces, WorkPieceFileName, "WorkPieces", x => x.GetXElement);
+
+        public void SaveFurnitures() => SaveData(Furnitures, FurnitureFileName, "Furnitures", 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()
+        {
+            WorkPieces = LoadData(WorkPieceFileName, "WorkPiece", x => WorkPiece.Create(x)!)!;
+            Furnitures = LoadData(FurnitureFileName, "Furniture", x => Furniture.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);
+            }
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/FurnitureAssemblyFileImplement.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="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
+    <ProjectReference Include="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/FurnitureStorage.cs

@@ -0,0 +1,97 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    // Реализация интерфейса хранилища изделий
+    public class FurnitureStorage : IFurnitureStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public FurnitureStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<FurnitureViewModel> GetFullList()
+        {
+            return source.Furnitures.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<FurnitureViewModel> GetFilteredList(FurnitureSearchModel model)
+        {
+            if(string.IsNullOrEmpty(model.FurnitureName))
+            {
+                return new();
+            }
+
+            return source.Furnitures.Where(x => x.FurnitureName.Contains(model.FurnitureName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public FurnitureViewModel? GetElement(FurnitureSearchModel model)
+        {
+            if(string.IsNullOrEmpty(model.FurnitureName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Furnitures.FirstOrDefault(x => (!string.IsNullOrEmpty(model.FurnitureName) && x.FurnitureName == model.FurnitureName)
+            || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public FurnitureViewModel? Insert(FurnitureBindingModel model)
+        {
+            model.Id = source.Furnitures.Count > 0 ? source.Furnitures.Max(x => x.Id) + 1 : 1;
+
+            var newFurniture = Furniture.Create(model);
+
+            if(newFurniture == null)
+            {
+                return null;
+            }
+
+            source.Furnitures.Add(newFurniture);
+            source.SaveFurnitures();
+
+            return newFurniture.GetViewModel;
+        }
+
+        public FurnitureViewModel? Update(FurnitureBindingModel model)
+        {
+            var furniture = source.Furnitures.FirstOrDefault(x => x.Id == model.Id);
+
+            if(furniture == null)
+            {
+                return null;
+            }
+
+            furniture.Update(model);
+            source.SaveFurnitures();
+
+            return furniture.GetViewModel;
+        }
+
+        public FurnitureViewModel? Delete(FurnitureBindingModel model)
+        {
+            var element = source.Furnitures.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Furnitures.Remove(element);
+                source.SaveFurnitures();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,112 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    // Реализация интерфейса хранилища заказов
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue && model.DateFrom.HasValue && model.DateTo.HasValue)
+            {
+                return source.Orders.Where(x => x.DateCreate >= model.DateFrom && x.DateCreate <= model.DateTo)
+                     .Select(x => GetViewModel(x)).ToList();
+            }
+
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        // Для загрузки названий изделия в заказе
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+
+            var furniture = source.Furnitures.FirstOrDefault(x => x.Id == order.FurnitureId);
+
+            if(furniture != null)
+            {
+                viewModel.FurnitureName = furniture.FurnitureName;
+            }
+
+            return viewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if(order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            source.SaveOrders();
+
+            return GetViewModel(order);
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if(element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+
+                return GetViewModel(element);
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,139 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    // Реализация интерфейса хранилища магазинов
+    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> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+
+            return _source.Shops.Where(x => x.ShopName.Contains(model.ShopName))
+                .Select(x => x.GetViewModel).ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return _source.Shops.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName)
+                || (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.SaveShops();
+
+            return newShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            var shop = _source.Shops.FirstOrDefault(x => x.ShopName.Contains(model.ShopName) || x.Id == model.Id);
+
+            if (shop == null)
+            {
+                return null;
+            }
+
+            shop.Update(model);
+            _source.SaveShops();
+
+            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.SaveShops();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public bool SellFurnitures(IFurnitureModel model, int count)
+        {
+            if (_source.Shops.Select(x => x.ShopFurnitures.FirstOrDefault(x => x.Key == model.Id).Value.Item2).Sum() < count)
+            {
+                return false;
+            }
+
+            var list = _source.Shops.Where(x => x.ShopFurnitures.ContainsKey(model.Id));
+
+            foreach (var shop in list)
+            {
+                if (shop.ShopFurnitures[model.Id].Item2 < count)
+                {
+                    count -= shop.ShopFurnitures[model.Id].Item2;
+                    shop.ShopFurnitures[model.Id] = (shop.ShopFurnitures[model.Id].Item1, 0);
+                }
+                else
+                {
+                    shop.ShopFurnitures[model.Id] = (shop.ShopFurnitures[model.Id].Item1, shop.ShopFurnitures[model.Id].Item2 - count);
+                    count -= count;
+                }
+
+                Update(new()
+                {
+                    ShopName = shop.ShopName,
+                    Address = shop.Address,
+                    DateOpen = shop.DateOpen,
+                    MaxCountFurnitures = shop.MaxCountFurnitures,
+                    ShopFurnitures = shop.ShopFurnitures
+                });
+
+                if (count == 0)
+                {
+                    return true;
+                }
+            }
+
+            return true;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/WorkPieceStorage.cs

@@ -0,0 +1,97 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    // Реализация интерфейса хранилища заготовок
+    public class WorkPieceStorage : IWorkPieceStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public WorkPieceStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<WorkPieceViewModel> GetFullList()
+        {
+            return source.WorkPieces.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<WorkPieceViewModel> GetFilteredList(WorkPieceSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkPieceName))
+            {
+                return new();
+            }
+
+            return source.WorkPieces.Where(x => x.WorkPieceName.Contains(model.WorkPieceName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public WorkPieceViewModel? GetElement(WorkPieceSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkPieceName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.WorkPieces.FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkPieceName) && x.WorkPieceName == model.WorkPieceName)
+                || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Insert(WorkPieceBindingModel model)
+        {
+            model.Id = source.WorkPieces.Count > 0 ? source.WorkPieces.Max(x => x.Id) + 1 : 1;
+
+            var newWorkPiece = WorkPiece.Create(model);
+
+            if (newWorkPiece == null)
+            {
+                return null;
+            }
+
+            source.WorkPieces.Add(newWorkPiece);
+            source.SaveWorkPieces();
+
+            return newWorkPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Update(WorkPieceBindingModel model)
+        {
+            var workPiece = source.WorkPieces.FirstOrDefault(x => x.Id == model.Id);
+
+            if (workPiece == null)
+            {
+                return null;
+            }
+
+            workPiece.Update(model);
+            source.SaveWorkPieces();
+
+            return workPiece.GetViewModel;
+        }
+
+        public WorkPieceViewModel? Delete(WorkPieceBindingModel model)
+        {
+            var element = source.WorkPieces.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.WorkPieces.Remove(element);
+                source.SaveWorkPieces();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Furniture.cs

@@ -0,0 +1,107 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    // Класс, реализующий интерфейс модели изделия
+    public class Furniture : IFurnitureModel
+    {
+        public int Id { get; private set; }
+
+        public string FurnitureName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public Dictionary<int, int> WorkPieces { get; private set; } = new();
+
+        private Dictionary<int, (IWorkPieceModel, int)>? _furnitureWorkPieces = null;
+
+        public Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces
+        {
+            get
+            {
+                if (_furnitureWorkPieces == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+
+                    _furnitureWorkPieces = WorkPieces.ToDictionary(x => x.Key,
+                        y => ((source.WorkPieces.FirstOrDefault(z => z.Id == y.Key) as IWorkPieceModel)!, y.Value));
+                }
+
+                return _furnitureWorkPieces;
+            }
+        }
+
+        public static Furniture? Create(FurnitureBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Furniture()
+            {
+                Id = model.Id,
+                FurnitureName = model.FurnitureName,
+                Price = model.Price,
+                WorkPieces = model.FurnitureWorkPieces.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Furniture? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Furniture()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                FurnitureName = element.Element("FurnitureName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                WorkPieces = element.Element("FurnitureWorkPieces")!.Elements("FurnitureWorkPieces").ToDictionary(
+                    x => Convert.ToInt32(x.Element("Key")?.Value),
+                    y => Convert.ToInt32(y.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(FurnitureBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            FurnitureName = model.FurnitureName;
+            Price = model.Price;
+            WorkPieces = model.FurnitureWorkPieces.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _furnitureWorkPieces = null;
+        }
+
+        public FurnitureViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureName = FurnitureName,
+            Price = Price,
+            FurnitureWorkPieces = FurnitureWorkPieces
+        };
+
+        public XElement GetXElement => new("Furniture",
+            new XAttribute("Id", Id),
+            new XElement("FurnitureName", FurnitureName),
+            new XElement("Price", Price.ToString()),
+            new XElement("FurnitureWorkPieces", WorkPieces.Select(
+                x => new XElement("FurnitureWorkPieces",
+                    new XElement("Key", x.Key),
+                    new XElement("Value", x.Value))
+                ).ToArray()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Order.cs

@@ -0,0 +1,101 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Enums;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    // Класс, реализующий интерфейс модели заказа
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int FurnitureId { 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,
+                FurnitureId = model.FurnitureId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                FurnitureId = Convert.ToInt32(element.Element("FurnitureId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
+                Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureId = FurnitureId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("FurnitureId", FurnitureId.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()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Shop.cs

@@ -0,0 +1,111 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    // Класс, реализующий интерфейс модели магазина
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+
+        public string ShopName { get; set; } = string.Empty;
+
+        public string Address { get; set; } = string.Empty;
+
+        public DateTime DateOpen { get; set; }
+
+        public int MaxCountFurnitures { get; set; }
+
+        public Dictionary<int, int> countFurniture { get; private set; } = new();
+
+        public Dictionary<int, (IFurnitureModel, int)> _furnitures = null;
+
+        public Dictionary<int, (IFurnitureModel, int)> ShopFurnitures
+        {
+            get
+            {
+                if (_furnitures == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _furnitures = countFurniture.ToDictionary(x => x.Key, y => ((source.Furnitures.FirstOrDefault(z => z.Id == y.Key) as IFurnitureModel)!, y.Value));
+                }
+
+                return _furnitures;
+            }
+        }
+
+        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,
+                MaxCountFurnitures = model.MaxCountFurnitures,
+                countFurniture = model.ShopFurnitures.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,
+                DateOpen = Convert.ToDateTime(element.Element("DateOpen")!.Value),
+                MaxCountFurnitures = Convert.ToInt32(element.Element("MaxCountFurnitures")!.Value),
+                countFurniture = element.Element("Furnitures")!.Elements("Furnitures").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;
+            DateOpen = model.DateOpen;
+            MaxCountFurnitures = model.MaxCountFurnitures;
+            countFurniture = model.ShopFurnitures.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _furnitures = null;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            MaxCountFurnitures = MaxCountFurnitures,
+            ShopFurnitures = ShopFurnitures
+        };
+        public XElement GetXElement => new("Shop",
+            new XAttribute("Id", Id),
+            new XElement("ShopName", ShopName),
+            new XElement("Address", Address),
+            new XElement("DateOpen", DateOpen.ToString()),
+            new XElement("MaxCountFurnitures", MaxCountFurnitures.ToString()),
+            new XElement("Furnitures", countFurniture.Select(x => new XElement("Furnitures",
+                new XElement("Key", x.Key),
+                new XElement("Value", x.Value))).ToArray()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/WorkPiece.cs

@@ -0,0 +1,75 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    // Класс, реализующий интерфейс модели заготовки
+    public class WorkPiece : IWorkPieceModel
+    {
+        public int Id { get; private set; }
+
+        public string WorkPieceName { get; private set; } = string.Empty;
+
+        public double Cost { get; set; }
+
+        public static WorkPiece? Create(WorkPieceBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = model.Id,
+                WorkPieceName = model.WorkPieceName,
+                Cost = model.Cost
+            };
+        }
+
+        public static WorkPiece? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                WorkPieceName = element.Element("WorkPieceName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+
+        public void Update(WorkPieceBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            WorkPieceName = model.WorkPieceName;
+            Cost = model.Cost;
+        }
+
+        public WorkPieceViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkPieceName = WorkPieceName,
+            Cost = Cost
+        };
+
+        public XElement GetXElement => new("WorkPiece",
+            new XAttribute("Id", Id),
+            new XElement("WorkPieceName", WorkPieceName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/DataListSingleton.cs

@@ -0,0 +1,45 @@
+using FurnitureAssemblyListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement
+{
+    // Класс для списков, в которых будет храниться информация при работе приложения
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+
+        // Список для хранения заготовок
+        public List<WorkPiece> WorkPiece { get; set; }
+
+        // Список для хранения изделий
+        public List<Furniture> Furnitures { get; set; }
+
+        // Список для хранения заказов
+        public List<Order> Orders { get; set; }
+
+        //список для хранения Магазинов
+        public List<Shop> Shops { get; set; }
+
+        public DataListSingleton()
+        {
+            WorkPiece = new List<WorkPiece>();
+            Furnitures = new List<Furniture>();
+            Orders = new List<Order>();
+            Shops = new List<Shop>();
+        }
+
+        public static DataListSingleton GetInstance()
+        {
+            if(_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+
+            return _instance;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/FurnitureAssemblyListImplement.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="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
+    <ProjectReference Include="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyListImplement/Implements/FurnitureStorage.cs

@@ -0,0 +1,138 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Implements
+{
+    // Класс, реализующий интерфейс хранилища изделий
+    public class FurnitureStorage : IFurnitureStorage
+    {
+        // Поле для работы со списком изделий
+        private readonly DataListSingleton _source;
+
+        // Получение в конструкторе объекта DataListSingleton
+        public FurnitureStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        // Получение полного списка изделий
+        public List<FurnitureViewModel> GetFullList()
+        {
+            var result = new List<FurnitureViewModel>();
+
+            foreach(var furniture in _source.Furnitures)
+            {
+                result.Add(furniture.GetViewModel);
+            }
+
+            return result;
+        }
+
+        // Получение отфильтрованного списка изделий
+        public List<FurnitureViewModel> GetFilteredList(FurnitureSearchModel model)
+        {
+            var result = new List<FurnitureViewModel>();
+
+            if(string.IsNullOrEmpty(model.FurnitureName))
+            {
+                return result;
+            }
+
+            foreach(var furniture in _source.Furnitures)
+            {
+                if (furniture.FurnitureName.Contains(model.FurnitureName))
+                {
+                    result.Add(furniture.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        // Получение элемента из списка изделий
+        public FurnitureViewModel? GetElement(FurnitureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.FurnitureName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach(var furniture in _source.Furnitures)
+            {
+                if((!string.IsNullOrEmpty(model.FurnitureName) && furniture.FurnitureName == model.FurnitureName) ||
+                    (model.Id.HasValue && furniture.Id == model.Id))
+                {
+                    return furniture.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // При создании изделия определяем для него новый id: ищем max id и прибавлляем к нему 1
+        public FurnitureViewModel? Insert(FurnitureBindingModel model)
+        {
+            model.Id = 1;
+
+            foreach(var furniture in _source.Furnitures)
+            {
+                if(model.Id <= furniture.Id)
+                {
+                    model.Id = furniture.Id + 1;
+                }
+            }
+
+            var newFurniture = Furniture.Create(model);
+
+            if(newFurniture == null)
+            {
+                return null;
+            }
+
+            _source.Furnitures.Add(newFurniture);
+
+            return newFurniture.GetViewModel;
+        }
+
+        // Обновление изделия
+        public FurnitureViewModel? Update(FurnitureBindingModel model)
+        {
+            foreach(var furniture in _source.Furnitures)
+            {
+                if(furniture.Id == model.Id)
+                {
+                    furniture.Update(model);
+
+                    return furniture.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // Удаление изделия
+        public FurnitureViewModel? Delete(FurnitureBindingModel model)
+        {
+            for(int i = 0; i < _source.Furnitures.Count; ++i)
+            {
+                if (_source.Furnitures[i].Id == model.Id)
+                {
+                    var element = _source.Furnitures[i];
+                    _source.Furnitures.RemoveAt(i);
+
+                    return element.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,163 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Implements
+{
+    // Класс, реализующий интерфейс хранилища заказов
+    public class OrderStorage : IOrderStorage
+    {
+        // Поле для работы со списком заказов
+        private readonly DataListSingleton _source;
+
+        // Получение в конструкторе объекта DataListSingleton
+        public OrderStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        // Получение полного списка заготовок
+        public List<OrderViewModel> GetFullList()
+        {
+            var result = new List<OrderViewModel>();
+
+            foreach(var order in _source.Orders)
+            {
+                result.Add(GetViewModel(order));
+            }
+
+            return result;
+        }
+
+        // Получение отфильтрованного списка заказов
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+
+            if(!model.Id.HasValue && model.DateFrom.HasValue && model.DateTo.HasValue)
+            {
+                foreach (var order in _source.Orders)
+                {
+                    if (order.DateCreate >= model.DateFrom && order.DateCreate <= model.DateTo)
+                    {
+                        result.Add(GetViewModel(order));
+                    }
+                }
+
+                return result;
+            }
+
+            foreach (var order in _source.Orders)
+            {
+                if( order.Id == model.Id)
+                {
+                    result.Add(GetViewModel(order));
+                }
+            }
+
+            return result;
+        }
+
+        // Получение элемента из списка заказов
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id.HasValue && order.Id == model.Id)
+                {
+                    return GetViewModel(order);
+                }
+            }
+
+            return null;
+        }
+
+        // Метод для записи названия изделия на форме с заказами
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+
+            foreach(var furniture in _source.Furnitures)
+            {
+                if (furniture.Id == order.FurnitureId)
+                {
+                    viewModel.FurnitureName = furniture.FurnitureName;
+
+                    break;
+                }
+            }
+
+            return viewModel;
+        }
+
+        // При создании заказа определяем для него новый id: ищем max id и прибавляем к нему 1
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = 1;
+
+            foreach(var order in _source.Orders)
+            {
+                if(model.Id <= order.Id)
+                {
+                    model.Id = order.Id + 1;
+                }
+            }
+
+            var newOrder = Order.Create(model);
+
+            if(newOrder == null)
+            {
+                return null;
+            }
+
+            _source.Orders.Add(newOrder);
+
+            return GetViewModel(newOrder);
+        }
+
+        // Обновление заказа
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach(var order in _source.Orders)
+            {
+                if(order.Id == model.Id)
+                {
+                    order.Update(model);
+
+                    return GetViewModel(order);
+                }
+            }
+
+            return null;
+        }
+
+        // Удаление заказа
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for(int i = 0; i < _source.Orders.Count; i++)
+            {
+                if (_source.Orders[i].Id == model.Id)
+                {
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+
+                    return GetViewModel(element);
+                }
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Implements/ShopStorage.cs

@@ -0,0 +1,143 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using FurnitureAssemblyListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Implements
+{
+    // Класс, реализующий интерфейс хранилища магазинов
+    public class ShopStorage : IShopStorage
+    {
+        // Поле для работы со списком магазинов
+        private readonly DataListSingleton _source;
+
+        // Получение в конструкторе объекта DataListSingleton
+        public ShopStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        // Получение элемента из списка заготовок
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach (var shop in _source.Shops)
+            {
+                if ((!string.IsNullOrEmpty(model.ShopName) && shop.ShopName == model.ShopName) || (model.Id.HasValue && shop.Id == model.Id))
+                {
+                    return shop.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // Получение отфильтрованного списка заказов
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            var result = new List<ShopViewModel>();
+
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return result;
+            }
+
+            foreach (var shop in _source.Shops)
+            {
+                if (shop.ShopName.Contains(model.ShopName))
+                {
+                    result.Add(shop.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        // Получение полного списка заготовок
+        public List<ShopViewModel> GetFullList()
+        {
+            var result = new List<ShopViewModel>();
+
+            foreach (var shop in _source.Shops)
+            {
+                result.Add(shop.GetViewModel);
+            }
+
+            return result;
+        }
+
+        // При создании магазина определяем для него новый id: ищем max id и прибавляем к нему 1
+        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;
+        }
+
+        // Обновление магазина
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            foreach (var shop in _source.Shops)
+            {
+                if (shop.Id == model.Id)
+                {
+                    shop.Update(model);
+
+                    return shop.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // Удаление магазина
+        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 SellFurnitures(IFurnitureModel model, int count)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Implements/WorkPieceStorage.cs

@@ -0,0 +1,138 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Implements
+{
+    // Класс, реализующий интерфейс хранилища заготовок
+    public class WorkPieceStorage : IWorkPieceStorage
+    {
+        // Поле для работы со списком заготовок
+        private readonly DataListSingleton _source;
+
+        // Получение в конструкторе объекта DataListSingleton
+        public WorkPieceStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        // Получение полного списка заготовок
+        public List<WorkPieceViewModel> GetFullList()
+        {
+            var result = new List<WorkPieceViewModel>();
+
+            foreach(var workPiece in _source.WorkPiece)
+            {
+                result.Add(workPiece.GetViewModel);
+            }
+
+            return result;
+        }
+
+        // Получение отфильтрованного списка заготовок
+        public List<WorkPieceViewModel> GetFilteredList(WorkPieceSearchModel model)
+        {
+            var result = new List<WorkPieceViewModel>();
+
+            if(string.IsNullOrEmpty(model.WorkPieceName))
+            {
+                return result;
+            }
+
+            foreach(var workPiece in _source.WorkPiece)
+            {
+                if (workPiece.WorkPieceName.Contains(model.WorkPieceName))
+                {
+                    result.Add(workPiece.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        // Получение элемента из списка заготовок
+        public WorkPieceViewModel? GetElement(WorkPieceSearchModel model)
+        {
+            if(string.IsNullOrEmpty(model.WorkPieceName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach(var workPiece in _source.WorkPiece)
+            {
+                if((!string.IsNullOrEmpty(model.WorkPieceName) && workPiece.WorkPieceName == model.WorkPieceName) ||
+                    (model.Id.HasValue && workPiece.Id == model.Id))
+                {
+                    return workPiece.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // При создании заготовки определяем для него новый id: ищем max id и прибавляем к нему 1
+        public WorkPieceViewModel? Insert(WorkPieceBindingModel model)
+        {
+            model.Id = 1;
+
+            foreach(var workPiece in _source.WorkPiece)
+            {
+                if(model.Id <= workPiece.Id)
+                {
+                    model.Id = workPiece.Id + 1;
+                }
+            }
+
+            var newWorkPiece = WorkPiece.Create(model);
+
+            if(newWorkPiece == null)
+            {
+                return null;
+            }
+
+            _source.WorkPiece.Add(newWorkPiece);
+
+            return newWorkPiece.GetViewModel;
+        }
+
+        // Обновление заготовки
+        public WorkPieceViewModel? Update(WorkPieceBindingModel model)
+        {
+            foreach(var workPiece in _source.WorkPiece)
+            {
+                if(workPiece.Id == model.Id)
+                {
+                    workPiece.Update(model);
+
+                    return workPiece.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        // Удаление заготовки
+        public WorkPieceViewModel? Delete(WorkPieceBindingModel model)
+        {
+            for(int i = 0; i < _source.WorkPiece.Count; i++)
+            {
+                if (_source.WorkPiece[i].Id == model.Id)
+                {
+                    var element = _source.WorkPiece[i];
+                    _source.WorkPiece.RemoveAt(i);
+
+                    return element.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Models/Furniture.cs

@@ -0,0 +1,63 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Models
+{
+    // Класс реализующий интерфейс модели изделия
+    public class Furniture : IFurnitureModel
+    {
+        // Методы set делаем приватным, чтобы исключить неразрешённые манипуляции
+        public int Id { get; private set; }
+
+        public string FurnitureName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public Dictionary<int, (IWorkPieceModel, int)> FurnitureWorkPieces { get; private set; } = new Dictionary<int, (IWorkPieceModel, int)>();
+
+        // Метод для создания объекта от класса-компонента на основе класса-BindingModel
+        public static Furniture? Create(FurnitureBindingModel? model)
+        {
+            if(model == null)
+            {
+                return null;
+            }
+
+            return new Furniture()
+            {
+                Id = model.Id,
+                FurnitureName = model.FurnitureName,
+                Price = model.Price,
+                FurnitureWorkPieces = model.FurnitureWorkPieces
+            };
+        }
+
+        // Метод изменения существующего объекта
+        public void Update(FurnitureBindingModel? model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+
+            FurnitureName = model.FurnitureName;
+            Price = model.Price;
+            FurnitureWorkPieces = model.FurnitureWorkPieces;
+        }
+
+        // Метод для создания объекта класса ViewModel на основе данных объекта класса-компонента
+        public FurnitureViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureName = FurnitureName,
+            Price = Price,
+            FurnitureWorkPieces = FurnitureWorkPieces
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Models/Order.cs

@@ -0,0 +1,74 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Enums;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Models
+{
+    // Класс, реализующий интерфейс модели заказа
+    public class Order : IOrderModel
+    {
+        // Методы set сделали приватными, чтобы исключить неразрешённые манипуляции
+        public int Id { get; private set; }
+
+        public int FurnitureId { 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; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        // Метод для создания объекта от класса-компонента на основе класса-BindingModel
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if(model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                FurnitureId = model.FurnitureId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+
+        // Метод изменения существующего объекта
+        public void Update(OrderBindingModel? model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        // Метод для создания объекта класса ViewModel на основе данных объекта класса-компонента
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureId = FurnitureId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Models/Shop.cs

@@ -0,0 +1,71 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Models
+{
+    // Класс, реализующий интерфейс модели магазина
+    public class Shop : IShopModel
+    {
+        // Методы set сделали приватными, чтобы исключить неразрешённые манипуляции
+        public string ShopName { get; private set; } = string.Empty;
+
+        public string Address { get; private set; } = string.Empty;
+
+        public DateTime DateOpen { get; private set; }
+
+        public int Id { get; private set; }
+
+        public int MaxCountFurnitures { get; set; }
+
+        public Dictionary<int, (IFurnitureModel, int)> ShopFurnitures { get; private set; } =
+            new Dictionary<int, (IFurnitureModel, int)>();
+
+        // Метод для создания объекта от класса-компонента на основе класса-BindingModel
+        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,
+                ShopFurnitures = model.ShopFurnitures
+            };
+        }
+
+        // Метод изменения существующего объекта
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpen = model.DateOpen;
+            ShopFurnitures = model.ShopFurnitures;
+        }
+
+        // Метод для создания объекта класса ViewModel на основе данных объекта класса-компонента
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            ShopFurnitures = ShopFurnitures
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyListImplement/Models/WorkPiece.cs

@@ -0,0 +1,58 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyListImplement.Models
+{
+    // Реализация интерфейса модели заготовки
+    public class WorkPiece : IWorkPieceModel
+    {
+        // Методы set делаем приватным, чтобы исключить неразрешённые манипуляции
+        public int Id { get; private set; }
+
+        public string WorkPieceName { get;  private set; } = string.Empty;
+
+        public double Cost { get; private set; }
+
+        // Метод для создания объекта от класса-компонента на основе класса-BindingModel
+        public static WorkPiece? Create(WorkPieceBindingModel? model)
+        {
+            if(model == null)
+            {
+                return null;
+            }
+
+            return new WorkPiece()
+            {
+                Id = model.Id,
+                WorkPieceName = model.WorkPieceName,
+                Cost = model.Cost
+            };
+        }
+
+        // Метод изменения существующего объекта
+        public void Update(WorkPieceBindingModel? model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+
+            WorkPieceName = model.WorkPieceName;
+            Cost = model.Cost;
+        }
+
+        // Метод для создания объекта класса ViewModel на основе данных объекта класса-компонента
+        public WorkPieceViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkPieceName = WorkPieceName,
+            Cost = Cost
+        };
+    }
+}

FurnitureAssembly/FurnitureAssemblyView/Form1.Designer.cs

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

FurnitureAssembly/FurnitureAssemblyView/Form1.cs

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

FurnitureAssembly/FurnitureAssemblyView/FormAddFurniture.Designer.cs

@@ -0,0 +1,151 @@
+namespace FurnitureAssemblyView
+{
+    partial class FormAddFurniture
+    {
+        /// <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.labelFurniture = new System.Windows.Forms.Label();
+            this.labelCount = new System.Windows.Forms.Label();
+            this.labelShop = new System.Windows.Forms.Label();
+            this.comboBoxFurniture = new System.Windows.Forms.ComboBox();
+            this.textBoxCount = new System.Windows.Forms.TextBox();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.comboBoxShop = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // labelFurniture
+            // 
+            this.labelFurniture.AutoSize = true;
+            this.labelFurniture.Location = new System.Drawing.Point(28, 58);
+            this.labelFurniture.Name = "labelFurniture";
+            this.labelFurniture.Size = new System.Drawing.Size(56, 15);
+            this.labelFurniture.TabIndex = 0;
+            this.labelFurniture.Text = "Изделие:";
+            // 
+            // labelCount
+            // 
+            this.labelCount.AutoSize = true;
+            this.labelCount.Location = new System.Drawing.Point(28, 91);
+            this.labelCount.Name = "labelCount";
+            this.labelCount.Size = new System.Drawing.Size(75, 15);
+            this.labelCount.TabIndex = 1;
+            this.labelCount.Text = "Количество:";
+            // 
+            // labelShop
+            // 
+            this.labelShop.AutoSize = true;
+            this.labelShop.Location = new System.Drawing.Point(28, 23);
+            this.labelShop.Name = "labelShop";
+            this.labelShop.Size = new System.Drawing.Size(57, 15);
+            this.labelShop.TabIndex = 2;
+            this.labelShop.Text = "Магазин:";
+            // 
+            // comboBoxFurniture
+            // 
+            this.comboBoxFurniture.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxFurniture.FormattingEnabled = true;
+            this.comboBoxFurniture.Location = new System.Drawing.Point(149, 55);
+            this.comboBoxFurniture.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.comboBoxFurniture.Name = "comboBoxFurniture";
+            this.comboBoxFurniture.Size = new System.Drawing.Size(230, 23);
+            this.comboBoxFurniture.TabIndex = 3;
+            // 
+            // textBoxCount
+            // 
+            this.textBoxCount.Location = new System.Drawing.Point(149, 88);
+            this.textBoxCount.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.textBoxCount.Name = "textBoxCount";
+            this.textBoxCount.Size = new System.Drawing.Size(230, 23);
+            this.textBoxCount.TabIndex = 4;
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(209, 123);
+            this.buttonSave.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(82, 22);
+            this.buttonSave.TabIndex = 6;
+            this.buttonSave.Text = "Сохранить";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(297, 123);
+            this.buttonCancel.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(82, 22);
+            this.buttonCancel.TabIndex = 7;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // comboBoxShop
+            // 
+            this.comboBoxShop.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxShop.FormattingEnabled = true;
+            this.comboBoxShop.Location = new System.Drawing.Point(149, 23);
+            this.comboBoxShop.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.comboBoxShop.Name = "comboBoxShop";
+            this.comboBoxShop.Size = new System.Drawing.Size(230, 23);
+            this.comboBoxShop.TabIndex = 8;
+            // 
+            // FormAddFurniture
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(394, 159);
+            this.Controls.Add(this.comboBoxShop);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.textBoxCount);
+            this.Controls.Add(this.comboBoxFurniture);
+            this.Controls.Add(this.labelShop);
+            this.Controls.Add(this.labelCount);
+            this.Controls.Add(this.labelFurniture);
+            this.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.Name = "FormAddFurniture";
+            this.Text = "Пополнение магазина";
+            this.Load += new System.EventHandler(this.FormAddFurniture_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Label labelFurniture;
+        private Label labelCount;
+        private Label labelShop;
+        private ComboBox comboBoxFurniture;
+        private TextBox textBoxCount;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private ComboBox comboBoxShop;
+    }
+}

FurnitureAssembly/FurnitureAssemblyView/FormAddFurniture.cs

@@ -0,0 +1,128 @@
+using FurnitureAssemblyContracts.BusinessLogicsContracts;
+using FurnitureAssemblyContracts.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 FurnitureAssemblyView
+{
+    public partial class FormAddFurniture : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IFurnitureLogic _logicI;
+        private readonly IShopLogic _logicS;
+
+        public FormAddFurniture(ILogger<FormAddFurniture> logger, IFurnitureLogic logicI, IShopLogic logicS)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicI = logicI;
+            _logicS = logicS;
+        }
+
+        private void FormAddFurniture_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Загрузка списка изделий для пополнения");
+
+            try
+            {
+                var list = _logicI.ReadList(null);
+
+                if (list != null)
+                {
+                    comboBoxFurniture.DisplayMember = "FurnitureName";
+                    comboBoxFurniture.ValueMember = "Id";
+                    comboBoxFurniture.DataSource = list;
+                    comboBoxFurniture.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки списка изделий");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+
+            _logger.LogInformation("Загрузка списка магазинов для пополнения");
+            try
+            {
+                var list = _logicS.ReadList(null);
+
+                if (list != null)
+                {
+                    comboBoxShop.DisplayMember = "ShopName";
+                    comboBoxShop.ValueMember = "Id";
+                    comboBoxShop.DataSource = list;
+                    comboBoxShop.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки списка магазинов");
+                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 (comboBoxFurniture.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите изделие", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            if (comboBoxShop.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите магазин", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Пополнение магазина");
+
+            try
+            {
+                var operationResult = _logicS.AddFurniture(new ShopSearchModel
+                {
+                    Id = Convert.ToInt32(comboBoxShop.SelectedValue)
+                },
+
+                _logicI.ReadElement(new FurnitureSearchModel()
+                {
+                    Id = Convert.ToInt32(comboBoxFurniture.SelectedValue)
+                })!, Convert.ToInt32(textBoxCount.Text));
+
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при пополнении магазина. Дополнительная информация в логах.");
+                }
+
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания заказа");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyView/FormAddFurniture.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>