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Reviewed-on: #8

ComputerHardwareStore/ComputerHardwareStore.sln

@@ -5,6 +5,20 @@ VisualStudioVersion = 17.7.34031.279
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputerHardwareStore", "ComputerHardwareStore\ComputerHardwareStore.csproj", "{D5DDEE2B-A0C4-430B-B00E-452BA1AB3DDA}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreDataModels", "ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj", "{48126915-C6D4-451C-BC88-39E3C50332B8}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreContracts", "ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj", "{5F394E21-2597-432B-AE73-BBAFD8D9F50E}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreBusinessLogic", "ComputerHardwareStoreBusinessLogic\ComputerHardwareStoreBusinessLogic.csproj", "{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreDatabaseImplement", "ComputerHardwareStoreDatabaseImplement\ComputerHardwareStoreDatabaseImplement.csproj", "{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputerHardwareStoreREST", "ComputerHardwareStoreREST\ComputerHardwareStoreREST.csproj", "{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "VendorClient", "VendorClient\VendorClient.csproj", "{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "StoreKeeperClient", "StoreKeeperClient\StoreKeeperClient.csproj", "{E31BB0DA-6493-4260-9EE7-6C330E12D2F1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +29,34 @@ Global
 		{D5DDEE2B-A0C4-430B-B00E-452BA1AB3DDA}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D5DDEE2B-A0C4-430B-B00E-452BA1AB3DDA}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{D5DDEE2B-A0C4-430B-B00E-452BA1AB3DDA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{48126915-C6D4-451C-BC88-39E3C50332B8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{48126915-C6D4-451C-BC88-39E3C50332B8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{48126915-C6D4-451C-BC88-39E3C50332B8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{48126915-C6D4-451C-BC88-39E3C50332B8}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5F394E21-2597-432B-AE73-BBAFD8D9F50E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D32DEB60-AF40-46AF-8914-DC6A19BD66CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93BD4E28-48D8-4D3A-87FB-FB96F00DA64B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{20E4D287-C0F4-4DAB-B338-349F8B6EA22B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD0D9FB9-7F73-4011-AAC8-D5508EC5EB53}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E31BB0DA-6493-4260-9EE7-6C330E12D2F1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E31BB0DA-6493-4260-9EE7-6C330E12D2F1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E31BB0DA-6493-4260-9EE7-6C330E12D2F1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E31BB0DA-6493-4260-9EE7-6C330E12D2F1}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputerHardwareStore/ComputerHardwareStore/ComputerHardwareStore.csproj

@@ -34,6 +34,27 @@
   </PropertyGroup>
   <ItemGroup>
     <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.8.0.0\lib\net462\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Extensions.DependencyInjection.8.0.0\lib\net462\Microsoft.Extensions.DependencyInjection.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.Extensions.DependencyInjection.Abstractions, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Extensions.DependencyInjection.Abstractions.8.0.0\lib\net462\Microsoft.Extensions.DependencyInjection.Abstractions.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.4.5.3\lib\net461\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

ComputerHardwareStore/ComputerHardwareStore/Program.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStore
+{
+    internal static class Program
+    {
+        static void Main()
+        {
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStore/packages.config

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Microsoft.Bcl.AsyncInterfaces" version="8.0.0" targetFramework="net48" />
+  <package id="Microsoft.Extensions.DependencyInjection" version="8.0.0" targetFramework="net48" />
+  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="8.0.0" targetFramework="net48" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.3" targetFramework="net48" />
+  <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net48" />
+</packages>

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/BuildLogic.cs

@@ -0,0 +1,113 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class BuildLogic : IBuildLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IBuildStorage _buildStorage;
+
+        public BuildLogic(ILogger<BuildLogic> logger, IBuildStorage buildStorage)
+        {
+            _logger = logger;
+            _buildStorage = buildStorage;
+        }
+
+        public List<BuildViewModel>? ReadList(BuildSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Build. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ? _buildStorage.GetFullList() :
+                _buildStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Build return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Build. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public BuildViewModel? ReadElement(BuildSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Build. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _buildStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Build element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Build find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(BuildBindingModel model)
+        {
+            CheckModel(model);
+            if (_buildStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Build operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(BuildBindingModel model)
+        {
+            CheckModel(model);
+            if (_buildStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Build operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(BuildBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_buildStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Build operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(BuildBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия сборки", nameof(model.Name));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена сборки должна быть больше 0", nameof(model.Price));
+            }
+            var element = _buildStorage.GetElement(new BuildSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Сборка с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/CommentLogic.cs

@@ -0,0 +1,101 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class CommentLogic : ICommentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly ICommentStorage _commentStorage;
+
+        public CommentLogic(ILogger<CommentLogic> logger, ICommentStorage commentStorage)
+        {
+            _logger = logger;
+            _commentStorage = commentStorage;
+        }
+
+        public List<CommentViewModel>? ReadList(CommentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Comment. Id:{Id}", model?.Id);
+            var list = model == null ? _commentStorage.GetFullList() :
+                _commentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Comment return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Comment. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public CommentViewModel? ReadElement(CommentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Comment. Id:{ Id}", model.Id);
+            var element = _commentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Comment element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Comment find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(CommentBindingModel model)
+        {
+            CheckModel(model);
+            if (_commentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CommentBindingModel model)
+        {
+            CheckModel(model);
+            if (_commentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CommentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_commentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Comment operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(CommentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Text))
+            {
+                throw new ArgumentNullException("Нет текста комментария", nameof(model.Text));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/ComponentLogic.cs

@@ -0,0 +1,113 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class ComponentLogic : IComponentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentStorage _componentStorage;
+
+        public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage componentStorage)
+        {
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+
+        public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Component. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ? _componentStorage.GetFullList() :
+                _componentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Component return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Component. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ComponentViewModel? ReadElement(ComponentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Component. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _componentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Component element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Component find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ComponentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_componentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Component operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(ComponentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия компонента", nameof(model.Name));
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Cost));
+            }
+            var element = _componentStorage.GetElement(new ComponentSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/OrderLogic.cs

@@ -0,0 +1,115 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Enums;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. OrderId:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+
+            if (model.Status != OrderStatus.Неизвестен)
+                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 ToNextStatus(model, OrderStatus.Выполняется);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ToNextStatus(model, OrderStatus.Готов);
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ToNextStatus(model, OrderStatus.Выдан);
+        }
+
+        public bool ToNextStatus(OrderBindingModel model, OrderStatus orderStatus)
+        {
+            CheckModel(model, false);
+            var element = _orderStorage.GetElement(new OrderSearchModel()
+            {
+                Id = model.Id
+            });
+            if (element == null)
+            {
+                throw new ArgumentNullException(nameof(element));
+            }
+
+            model.OrderProducts = element.OrderProducts;
+            model.DateCreate = element.DateCreate;
+            model.Status = element.Status;
+
+            if (model.Status != orderStatus - 1)
+            {
+                _logger.LogWarning("Status update to " + orderStatus + " operation failed");
+                return false;
+            }
+            model.Status = orderStatus;
+
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+                _logger.LogWarning("Changing status operation faled");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Цена заказа должна быть больше 0", nameof(model.Sum));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/ProductLogic.cs

@@ -0,0 +1,115 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class ProductLogic : IProductLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IProductStorage _productStorage;
+
+        public ProductLogic(ILogger logger, IProductStorage productStorage)
+        {
+            _logger = logger;
+            _productStorage = productStorage;
+        }
+
+        public List<ProductViewModel>? ReadList(ProductSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Product. Name:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ?
+                _productStorage.GetFullList() :
+                _productStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Product return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Product. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ProductViewModel? ReadElement(ProductSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Product. Name:{Name}. Id:{ Id}", model.Name, model.Id);
+            var element = _productStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Product element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Product find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ProductBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Product operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ProductBindingModel model)
+        {
+            CheckModel(model);
+            if (_productStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Product Component operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ProductBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_productStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Product operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ProductBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentException("Нет названия продукта", nameof(model.Name));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена продукта должна быть больше 0", nameof(model.Price));
+            }
+            var element = _productStorage.GetElement(new ProductSearchModel
+            {
+                Name = model.Name
+            });
+            if (element != null)
+            {
+                throw new InvalidOperationException("Продукт с таким названием уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/PurchaseLogic.cs

@@ -0,0 +1,101 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class PurchaseLogic : IPurchaseLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IPurchaseStorage _purchaseStorage;
+
+        public PurchaseLogic(ILogger<PurchaseLogic> logger, IPurchaseStorage purchaseStorage)
+        {
+            _logger = logger;
+            _purchaseStorage = purchaseStorage;
+        }
+
+        public List<PurchaseViewModel>? ReadList(PurchaseSearchModel? model)
+        {
+            _logger.LogInformation("ReadList Purchase. Id:{ Id}", model?.Id);
+            var list = model == null ? _purchaseStorage.GetFullList() :
+                _purchaseStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList Purchase return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList Purchase. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public PurchaseViewModel? ReadElement(PurchaseSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement Purchase. Id:{ Id}", model.Id);
+            var element = _purchaseStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement Purchase element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement Purchase find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_purchaseStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(PurchaseBindingModel model)
+        {
+            CheckModel(model);
+            if (_purchaseStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(PurchaseBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_purchaseStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete Purchase operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(PurchaseBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Стоимость покупки должна быть больше 0", nameof(model.Cost));
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/StoreKeeperLogic.cs

@@ -0,0 +1,107 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class StoreKeeperLogic : IStoreKeeperLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IStoreKeeperStorage _storeKeeperStorage;
+        public StoreKeeperLogic(ILogger<StoreKeeperLogic> logger, IStoreKeeperStorage storeKeeperStorage)
+        {
+            _logger = logger;
+            _storeKeeperStorage = storeKeeperStorage;
+        }
+        public List<StoreKeeperViewModel>? ReadList(StoreKeeperSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Login:{Login}.Id:{Id}", model?.Login, model?.Id);
+            var list = model == null ? _storeKeeperStorage.GetFullList() : _storeKeeperStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public StoreKeeperViewModel? ReadElement(StoreKeeperSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Login:{Login}.Id:{Id}", model.Login, model.Id);
+            var element = _storeKeeperStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(StoreKeeperBindingModel model)
+        {
+            CheckModel(model);
+            if (_storeKeeperStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(StoreKeeperBindingModel model)
+        {
+            CheckModel(model);
+            if (_storeKeeperStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(StoreKeeperBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_storeKeeperStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(StoreKeeperBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина кладовщика", nameof(model.Login));
+            }
+            var element = _storeKeeperStorage.GetElement(new StoreKeeperSearchModel
+            {
+                Login = model.Login
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Кладовщик с таким логином уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/BusinessLogic/VendorLogic.cs

@@ -0,0 +1,107 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.BusinessLogicsContracts;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace ComputerHardwareStoreBusinessLogic.BusinessLogic
+{
+    public class VendorLogic : IVendorLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IVendorStorage _vendorStorage;
+        public VendorLogic(ILogger<VendorLogic> logger, IVendorStorage vendorStorage)
+        {
+            _logger = logger;
+            _vendorStorage = vendorStorage;
+        }
+        public List<VendorViewModel>? ReadList(VendorSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Login:{Login}.Id:{Id}", model?.Login, model?.Id);
+            var list = model == null ? _vendorStorage.GetFullList() : _vendorStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public VendorViewModel? ReadElement(VendorSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Login:{Login}.Id:{Id}", model.Login, model.Id);
+            var element = _vendorStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(VendorBindingModel model)
+        {
+            CheckModel(model);
+            if (_vendorStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(VendorBindingModel model)
+        {
+            CheckModel(model);
+            if (_vendorStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(VendorBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_vendorStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(VendorBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина работника", nameof(model.Login));
+            }
+            var element = _vendorStorage.GetElement(new VendorSearchModel
+            {
+                Login = model.Login
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Работник с таким логином уже есть");
+            }
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/ComputerHardwareStoreBusinessLogic.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="DocumentFormat.OpenXml" Version="2.19.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/AbstractSaveToExcel.cs

@@ -0,0 +1,112 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage
+{
+	public abstract class AbstractSaveToExcel
+	{
+		public void CreateReportProduct(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 pb in info.ProductBuilds)
+			{
+				InsertCellInWorksheet(new ExcelCellParameters
+				{
+					ColumnName = "A",
+					RowIndex = rowIndex,
+					Text = pb.ProductName,
+					StyleInfo = ExcelStyleInfoType.Text
+				});
+				rowIndex++;
+				foreach (var Build in pb.Builds)
+				{
+					InsertCellInWorksheet(new ExcelCellParameters
+					{
+						ColumnName = "B",
+						RowIndex = rowIndex,
+						Text = Build.Item1,
+						StyleInfo =
+					ExcelStyleInfoType.TextWithBroder
+					});
+					InsertCellInWorksheet(new ExcelCellParameters
+					{
+						ColumnName = "C",
+						RowIndex = rowIndex,
+						Text = Build.Item2.ToString(),
+						StyleInfo =
+					ExcelStyleInfoType.TextWithBroder
+					});
+					rowIndex++;
+				}
+				rowIndex++;
+			}
+			SaveExcel(info);
+		}
+		public void CreateReportBuild(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 bp in info.BuildProducts)
+			{
+				InsertCellInWorksheet(new ExcelCellParameters
+				{
+					ColumnName = "A",
+					RowIndex = rowIndex,
+					Text = bp.BuildName,
+					StyleInfo = ExcelStyleInfoType.Text
+				});
+				rowIndex++;
+				foreach (var Product in bp.Products)
+				{
+					InsertCellInWorksheet(new ExcelCellParameters
+					{
+						ColumnName = "B",
+						RowIndex = rowIndex,
+						Text = Product.Item1,
+						StyleInfo = ExcelStyleInfoType.TextWithBroder
+					});
+					InsertCellInWorksheet(new ExcelCellParameters
+					{
+						ColumnName = "C",
+						RowIndex = rowIndex,
+						Text = Product.Item2.ToString(),
+						StyleInfo = ExcelStyleInfoType.TextWithBroder
+					});
+					rowIndex++;
+				}
+				rowIndex++;
+			}
+			SaveExcel(info);
+		}
+		protected abstract void CreateExcel(ExcelInfo info);
+		protected abstract void InsertCellInWorksheet(ExcelCellParameters excelParams);
+		protected abstract void MergeCells(ExcelMergeParameters excelParams);
+		protected abstract void SaveExcel(ExcelInfo info);
+
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/AbstractSaveToWord.cs

@@ -0,0 +1,125 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage
+{
+	public abstract class AbstractSaveToWord
+	{
+		public void CreateProductBuildReport(WordInfo info)
+		{
+			CreateWord(info);
+
+			CreateParagraph(new WordParagraph
+			{
+				Texts = new List<(string, WordTextProperties)> { (info.Title, new WordTextProperties { Bold = true, Size = "24" }) },
+				TextProperties = new WordTextProperties
+				{
+					Size = "24",
+					JustificationType = WordJustificationType.Center
+				}
+			});
+
+			List<WordRow> rows = new List<WordRow>();
+			rows.Add(new WordRow
+			{
+				Rows = new List<(string, WordTextProperties)> {
+						("Сборки", new WordTextProperties { Size = "24", Bold = true }),
+						("Товары", new WordTextProperties { Size = "24", Bold = true }),
+						("Стоимость", new WordTextProperties { Size = "24", Bold = true })
+				}
+			});
+
+			var reportRecords = info.ProductBuilds;
+			foreach (var reportRecord in reportRecords)
+			{
+				rows.Add(new WordRow
+				{
+					Rows = new List<(string, WordTextProperties)>
+					{
+						(reportRecord.ProductName, new WordTextProperties { Size = "24" }),
+						("", new WordTextProperties { }),
+						("", new WordTextProperties { })
+					}
+				});
+				for (int i = 0; i < reportRecord.Builds.Count; i++)
+				{
+					rows.Add(new WordRow
+					{
+						Rows = new List<(string, WordTextProperties)>
+						{
+							("", new WordTextProperties { }),
+							(reportRecord.Builds[i].Build, new WordTextProperties { Size = "24" }),
+							(reportRecord.Builds[i].Price.ToString(), new WordTextProperties { Size = "24" })
+						}
+					});
+				}
+			}
+
+			CreateTable(rows);
+
+			SaveWord(info);
+		}
+
+		public void CreateBuildProductReport(WordInfo info)
+		{
+			CreateWord(info);
+
+			CreateParagraph(new WordParagraph
+			{
+				Texts = new List<(string, WordTextProperties)> { (info.Title, new WordTextProperties { Bold = true, Size = "24" }) },
+				TextProperties = new WordTextProperties
+				{
+					Size = "24",
+					JustificationType = WordJustificationType.Center
+				}
+			});
+
+			List<WordRow> rows = new List<WordRow>();
+			rows.Add(new WordRow
+			{
+				Rows = new List<(string, WordTextProperties)> {
+						("Товары", new WordTextProperties { Size = "24", Bold = true }),
+						("Сборки", new WordTextProperties { Size = "24", Bold = true }),
+						("Стоимость", new WordTextProperties { Size = "24", Bold = true })
+				}
+			});
+
+			var reportRecords = info.BuildProducts;
+			foreach (var reportRecord in reportRecords)
+			{
+				rows.Add(new WordRow
+				{
+					Rows = new List<(string, WordTextProperties)>
+					{
+						(reportRecord.BuildName, new WordTextProperties { Size = "24" }),
+						("", new WordTextProperties { }),
+						("", new WordTextProperties { })
+					}
+				});
+				for (int i = 0; i < reportRecord.Products.Count; i++)
+				{
+					rows.Add(new WordRow
+					{
+						Rows = new List<(string, WordTextProperties)>
+						{
+							("", new WordTextProperties { }),
+							(reportRecord.Products[i].Product, new WordTextProperties { Size = "24" }),
+							(reportRecord.Products[i].Price.ToString(), new WordTextProperties { Size = "24" })
+						}
+					});
+				}
+			}
+
+			CreateTable(rows);
+
+			SaveWord(info);
+		}
+		protected abstract void CreateWord(WordInfo info);
+
+		protected abstract void CreateTable(List<WordRow> rows);
+
+		protected abstract void CreateParagraph(WordParagraph paragraph);
+
+		protected abstract void SaveWord(WordInfo info);
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperEnums/ExcelStyleInfoType.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums
+{
+	public enum ExcelStyleInfoType
+	{
+		Title,
+		Text,
+		TextWithBroder
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperEnums/WordJustificationType.cs

@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums
+{
+	public enum WordJustificationType
+	{
+		Center,
+		Both
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/ExcelCellParameters.cs

@@ -0,0 +1,13 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class ExcelCellParameters
+	{
+		public string ColumnName { get; set; } = string.Empty;
+		public uint RowIndex { get; set; }
+		public string Text { get; set; } = string.Empty;
+		public string CellReference => $"{ColumnName}{RowIndex}";
+		public ExcelStyleInfoType StyleInfo { get; set; }
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/ExcelInfo.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class ExcelInfo
+	{
+		public string FileName { get; set; } = string.Empty;
+		public string Title { get; set; } = string.Empty;
+		public List<ReportBuildProductViewModel> BuildProducts { get; set; } = new();
+		public List<ReportProductBuildViewModel> ProductBuilds {get; set; } = new();
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/ExcelMergeParameters.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class ExcelMergeParameters
+	{
+		public string CellFromName { get; set; } = string.Empty;
+		public string CellToName { get; set; } = string.Empty;
+		public string Merge => $"{CellFromName}:{CellToName}";
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/WordInfo.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class WordInfo
+	{
+		public string FileName { get; set; } = string.Empty;
+		public string Title { get; set; } = string.Empty;
+		public List<ReportBuildProductViewModel> BuildProducts { get; set; } = new();
+		public List<ReportProductBuildViewModel> ProductBuilds { get; set; } = new();
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/WordParagraph.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class WordParagraph
+	{
+		public List<(string, WordTextProperties)> Texts { get; set; } = new();
+		public WordTextProperties? TextProperties { get; set; }
+
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/WordRow.cs

@@ -0,0 +1,7 @@
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class WordRow
+	{
+		public List<(string, WordTextProperties)> Rows { get; set; } = new();
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/HelperModels/WordTextProperties.cs

@@ -0,0 +1,11 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels
+{
+	public class WordTextProperties
+	{
+		public string Size { get; set; } = string.Empty;
+		public bool Bold { get; set; }
+		public WordJustificationType JustificationType { get; set; }
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/Implements/SaveToExcel.cs

@@ -0,0 +1,329 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels;
+using DocumentFormat.OpenXml;
+using DocumentFormat.OpenXml.Office2010.Excel;
+using DocumentFormat.OpenXml.Office2013.Excel;
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Spreadsheet;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.Implements
+{
+	public class SaveToExcel : AbstractSaveToExcel
+	{
+		private SpreadsheetDocument? _spreadsheetDocument;
+		private SharedStringTablePart? _shareStringPart;
+		private Worksheet? _worksheet;
+
+		private static void CreateStyles(WorkbookPart workbookpart)
+		{
+			var sp = workbookpart.AddNewPart<WorkbookStylesPart>();
+			sp.Stylesheet = new Stylesheet();
+
+			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 });
+
+			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 });
+
+			fonts.Append(fontUsual);
+			fonts.Append(fontTitle);
+
+			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);
+
+			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);
+
+			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
+			};
+			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);
+		}
+		/// <summary>
+		/// Получение номера стиля из типа
+		/// </summary>
+		/// <param name="styleInfo"></param>
+		/// <returns></returns>
+		private static uint GetStyleValue(ExcelStyleInfoType styleInfo)
+		{
+			return styleInfo switch
+			{
+				ExcelStyleInfoType.Title => 2U,
+				ExcelStyleInfoType.TextWithBroder => 1U,
+				ExcelStyleInfoType.Text => 0U,
+				_ => 0U,
+			};
+		}
+		protected override void CreateExcel(ExcelInfo info)
+		{
+			_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;
+		}
+		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);
+		}
+		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.Close();
+		}
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreBusinessLogic/OfficePackage/Implements/SaveToWord.cs

@@ -0,0 +1,175 @@
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperEnums;
+using ComputerHardwareStoreBusinessLogic.OfficePackage.HelperModels;
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Wordprocessing;
+using DocumentFormat.OpenXml;
+
+namespace ComputerHardwareStoreBusinessLogic.OfficePackage.Implements
+{
+	public class SaveToWord : AbstractSaveToWord
+	{
+		private WordprocessingDocument? _wordDocument;
+
+		private Body? _docBody;
+
+		private static JustificationValues GetJustificationValues(WordJustificationType type)
+		{
+			return type switch
+			{
+				WordJustificationType.Both => JustificationValues.Both,
+				WordJustificationType.Center => JustificationValues.Center,
+				_ => JustificationValues.Left,
+			};
+		}
+
+		private static SectionProperties CreateSectionProperties()
+		{
+			var properties = new SectionProperties();
+
+			var pageSize = new PageSize
+			{
+				Orient = PageOrientationValues.Portrait
+			};
+
+			properties.AppendChild(pageSize);
+
+			return properties;
+		}
+
+		private static ParagraphProperties? CreateParagraphProperties(WordTextProperties? paragraphProperties)
+		{
+			if (paragraphProperties == null)
+			{
+				return null;
+			}
+
+			var properties = new ParagraphProperties();
+
+			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)
+		{
+			_wordDocument = WordprocessingDocument.Create(info.FileName, WordprocessingDocumentType.Document);
+			MainDocumentPart mainPart = _wordDocument.AddMainDocumentPart();
+			mainPart.Document = new Document();
+			_docBody = mainPart.Document.AppendChild(new Body());
+		}
+
+		protected override void CreateTable(List<WordRow> data)
+		{
+			if (_docBody == null || data == null)
+			{
+				return;
+			}
+			Table table = new Table();
+			var tableProp = new TableProperties();
+			tableProp.AppendChild(new TableLayout { Type = TableLayoutValues.Fixed });
+			tableProp.AppendChild(new TableBorders(
+					new TopBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 },
+					new LeftBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 },
+					new RightBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 },
+					new BottomBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 },
+					new InsideHorizontalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 },
+					new InsideVerticalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 4 }
+					));
+			tableProp.AppendChild(new TableWidth { Type = TableWidthUnitValues.Auto });
+			table.AppendChild(tableProp);
+			TableGrid tableGrid = new TableGrid();
+			for (int j = 0; j < data[0].Rows.Count; ++j)
+			{
+				tableGrid.AppendChild(new GridColumn() { Width = "1600" });
+			}
+			table.AppendChild(tableGrid);
+			for (int i = 0; i < data.Count; ++i)
+			{
+				TableRow docRow = new TableRow();
+				for (int j = 0; j < data[i].Rows.Count; ++j)
+				{
+					var docParagraph = new Paragraph();
+					var docRun = new Run();
+					var runProperties = new RunProperties();
+
+					docParagraph.AppendChild(CreateParagraphProperties(data[i].Rows[j].Item2));
+
+					runProperties.AppendChild(new RunFonts() { Ascii = "Times New Roman", ComplexScript = "Times New Roman", HighAnsi = "Times New Roman" });
+					runProperties.AppendChild(new FontSize { Val = data[i].Rows[j].Item2.Size == null ? data[i].Rows[j].Item2.Size : "24" });
+					if (data[i].Rows[j].Item2.Bold)
+						runProperties.AppendChild(new Bold());
+
+					docRun.AppendChild(runProperties);
+					docRun.AppendChild(new Text { Text = data[i].Rows[j].Item1.ToString(), Space = SpaceProcessingModeValues.Preserve });
+
+					docParagraph.AppendChild(docRun);
+					TableCell docCell = new TableCell();
+					docCell.AppendChild(docParagraph);
+					docRow.AppendChild(docCell);
+				}
+				table.AppendChild(docRow);
+			}
+			_docBody.AppendChild(table);
+		}
+
+		protected override void CreateParagraph(WordParagraph paragraph)
+		{
+			if (_docBody == null || paragraph == null)
+			{
+				return;
+			}
+			var docParagraph = new Paragraph();
+
+			docParagraph.AppendChild(CreateParagraphProperties(paragraph.TextProperties));
+
+			foreach (var run in paragraph.Texts)
+			{
+				var docRun = new Run();
+
+				var properties = new RunProperties();
+				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);
+		}
+
+		protected override void SaveWord(WordInfo info)
+		{
+			if (_docBody == null || _wordDocument == null)
+			{
+				return;
+			}
+			_docBody.AppendChild(CreateSectionProperties());
+
+			_wordDocument.MainDocumentPart!.Document.Save();
+
+			_wordDocument.Close();
+		}
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/BuildBindingModel.cs

@@ -0,0 +1,14 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class BuildBindingModel : IBuildModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public IVendorModel Vendor { get; set; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponents { get; set; } = new();
+        public List<ICommentModel> Comments { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/CommentBindingModel.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class CommentBindingModel : ICommentModel
+    {
+        public int Id { get; set; }
+        public DateTime Date { get; set; } = DateTime.Now;
+        public string Text { get; set; } = string.Empty;
+        public int BuildId { get; set; } 
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class ComponentBindingModel : IComponentModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public double Cost { get; set; }
+        public IStoreKeeperModel StoreKeeper { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Enums;
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { 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; } = null;
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ProductBindingModel.cs

@@ -0,0 +1,13 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class ProductBindingModel : IProductModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+        public IStoreKeeperModel StoreKeeper { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/PurchaseBindingModel.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class PurchaseBindingModel : IPurchaseModel
+    {
+        public int Id { get; set; }
+        public int VendorId { get; set; }
+        public double Cost { get; set; }
+        public DateTime DateCreate { get; set; }
+        public DateTime? DateImplement { get; set; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; set; } = new();
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/ReportBindingModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+	public class ReportBindingModel
+	{
+		public string FileName { get; set; } = string.Empty;
+		public DateTime? DateFrom { get; set; }
+		public DateTime? DateTo { get; set; }
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/StoreKeeperBindingModel.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class StoreKeeperBindingModel : IStoreKeeperModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string Login { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BindingModels/VendorBindingModel.cs

@@ -0,0 +1,12 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.BindingModels
+{
+    public class VendorBindingModel : IVendorModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = string.Empty;
+        public string Login { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IBuildLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IBuildLogic
+    {
+        List<BuildViewModel>? ReadList(BuildSearchModel? model);
+        BuildViewModel? ReadElement(BuildSearchModel model);
+        bool Create(BuildBindingModel model);
+        bool Update(BuildBindingModel model);
+        bool Delete(BuildBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/ICommentLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface ICommentLogic
+    {
+        List<CommentViewModel>? ReadList(CommentSearchModel? model);
+        CommentViewModel? ReadElement(CommentSearchModel model);
+        bool Create(CommentBindingModel model);
+        bool Update(CommentBindingModel model);
+        bool Delete(CommentBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IComponentLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IComponentLogic
+    {
+        List<ComponentViewModel>? ReadList(ComponentSearchModel? model);
+        ComponentViewModel? ReadElement(ComponentSearchModel model);
+        bool Create(ComponentBindingModel model);
+        bool Update(ComponentBindingModel model);
+        bool Delete(ComponentBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IProductLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IProductLogic
+    {
+        List<ProductViewModel>? ReadList(ProductSearchModel? model);
+        ProductViewModel? ReadElement(ProductSearchModel model);
+        bool Create(ProductBindingModel model);
+        bool Update(ProductBindingModel model);
+        bool Delete(ProductBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IPurchaseLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IPurchaseLogic
+    {
+        List<PurchaseViewModel>? ReadList(PurchaseSearchModel? model);
+        PurchaseViewModel? ReadElement(PurchaseSearchModel model);
+        bool Create(PurchaseBindingModel model);
+        bool Update(PurchaseBindingModel model);
+        bool Delete(PurchaseBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IReportLogic.cs

@@ -0,0 +1,41 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+	public interface IReportLogic
+	{
+		/// <summary>
+		/// Получение списка товаров по сборкам
+		/// </summary>
+		/// <returns></returns>
+		List<ReportProductBuildViewModel> GetProductBuild();
+		/// <summary>
+		/// Получение списка сборок по товарам
+		/// </summary>
+		/// <returns></returns>
+		List<ReportBuildProductViewModel> GetBuildProduct();
+		/// <summary>
+		/// Получение списка покупок за период с комплектующими и комментариями
+		/// </summary>
+		/// <param name="model"></param>
+		/// <returns></returns>
+		//List<ReportOrdersViewModel> GetOrders(ReportBindingModel model);
+		/// <summary>
+		/// Получение списка комплектующих с покупками и заказами за период
+		/// </summary>
+		/// <param name="model"></param>
+		/// <returns></returns>
+		//List<ReportOrdersViewModel> GetOrders(ReportBindingModel model);
+		/// <summary>
+		/// Сохранение списка в файл-Word
+		/// </summary>
+		/// <param name="model"></param>
+		void SaveListToWordFile(ReportBindingModel model);
+		/// <summary>
+		/// Сохранение списка в файл-Excel
+		/// </summary>
+		/// <param name="model"></param>
+		void SaveListToExcelFile(ReportBindingModel model);
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IStoreKeeperLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IStoreKeeperLogic
+    {
+        List<StoreKeeperViewModel>? ReadList(StoreKeeperSearchModel? model);
+        StoreKeeperViewModel? ReadElement(StoreKeeperSearchModel model);
+        bool Create(StoreKeeperBindingModel model);
+        bool Update(StoreKeeperBindingModel model);
+        bool Delete(StoreKeeperBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/BusinessLogicsContracts/IVendorLogic.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.BusinessLogicsContracts
+{
+    public interface IVendorLogic
+    {
+        List<VendorViewModel>? ReadList(VendorSearchModel? model);
+        VendorViewModel? ReadElement(VendorSearchModel model);
+        bool Create(VendorBindingModel model);
+        bool Update(VendorBindingModel model);
+        bool Delete(VendorBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ComputerHardwareStoreContracts.csproj

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

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/BuildSearchModel.cs

@@ -0,0 +1,10 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class BuildSearchModel
+    {
+        public int? Id { get; set; }
+        public int VendorId { get; set; }
+        public int? ProductId { get; set; }
+        public string? Name { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/CommentSearchModel.cs

@@ -0,0 +1,7 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class CommentSearchModel
+    {
+        public int? Id { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ComponentSearchModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class ComponentSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Name { get; set; }
+        public int? StoreKeeperId { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class OrderSearchModel
+    {
+        public int? Id { get; set; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/ProductSearchModel.cs

@@ -0,0 +1,10 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class ProductSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Name { get; set; }
+        public int StoreKeeperId { get; set; }
+        public int? BuildId { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/PurchaseSearchModel.cs

@@ -0,0 +1,10 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class PurchaseSearchModel
+    {
+        public int? Id { get; set; }
+        public int? VendorId { get; set; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/StoreKeeperSearchModel.cs

@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class StoreKeeperSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Login { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/SearchModels/VendorSearchModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.SearchModels
+{
+    public class VendorSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Login { get; set; }
+        public string? Password { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IBuildStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IBuildStorage
+    {
+        List<BuildViewModel> GetFullList();
+        List<BuildViewModel> GetFilteredList(BuildSearchModel model);
+        BuildViewModel? GetElement(BuildSearchModel model);
+        BuildViewModel? Insert(BuildBindingModel model);
+        BuildViewModel? Update(BuildBindingModel model);
+        BuildViewModel? Delete(BuildBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/ICommentStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface ICommentStorage
+    {
+        List<CommentViewModel> GetFullList();
+        List<CommentViewModel> GetFilteredList(CommentSearchModel model);
+        CommentViewModel? GetElement(CommentSearchModel model);
+        CommentViewModel? Insert(CommentBindingModel model);
+        CommentViewModel? Update(CommentBindingModel model);
+        CommentViewModel? Delete(CommentBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IComponentStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+        List<ComponentViewModel> GetFilteredList(ComponentSearchModel model);
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+        ComponentViewModel? Insert(ComponentBindingModel model);
+        ComponentViewModel? Update(ComponentBindingModel model);
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IOrderStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    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);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IProductStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IProductStorage
+    {
+        List<ProductViewModel> GetFullList();
+        List<ProductViewModel> GetFilteredList(ProductSearchModel model);
+        ProductViewModel? GetElement(ProductSearchModel model);
+        ProductViewModel? Insert(ProductBindingModel model);
+        ProductViewModel? Update(ProductBindingModel model);
+        ProductViewModel? Delete(ProductBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IPurchaseStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IPurchaseStorage
+    {
+        List<PurchaseViewModel> GetFullList();
+        List<PurchaseViewModel> GetFilteredList(PurchaseSearchModel model);
+        PurchaseViewModel? GetElement(PurchaseSearchModel model);
+        PurchaseViewModel? Insert(PurchaseBindingModel model);
+        PurchaseViewModel? Update(PurchaseBindingModel model);
+        PurchaseViewModel? Delete(PurchaseBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IStoreKeeperStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IStoreKeeperStorage
+    {
+        List<StoreKeeperViewModel> GetFullList();
+        List<StoreKeeperViewModel> GetFilteredList(StoreKeeperSearchModel model);
+        StoreKeeperViewModel? GetElement(StoreKeeperSearchModel model);
+        StoreKeeperViewModel? Insert(StoreKeeperBindingModel model);
+        StoreKeeperViewModel? Update(StoreKeeperBindingModel model);
+        StoreKeeperViewModel? Delete(StoreKeeperBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/StorageContracts/IVendorStorage.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.ViewModels;
+
+namespace ComputerHardwareStoreContracts.StorageContracts
+{
+    public interface IVendorStorage
+    {
+        List<VendorViewModel> GetFullList();
+        List<VendorViewModel> GetFilteredList(VendorSearchModel model);
+        VendorViewModel? GetElement(VendorSearchModel model);
+        VendorViewModel? Insert(VendorBindingModel model);
+        VendorViewModel? Update(VendorBindingModel model);
+        VendorViewModel? Delete(VendorBindingModel model);
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/BuildViewModel.cs

@@ -0,0 +1,17 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class BuildViewModel : IBuildModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название сборки")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Стоимость")]
+        public double Price { get; set; }
+        public IVendorModel Vendor { get; set; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponents { get; set; } = new();
+        public List<ICommentModel> Comments { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/CommentViewModel.cs

@@ -0,0 +1,11 @@
+using ComputerHardwareStoreDataModels.Models;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class CommentViewModel : ICommentModel
+    {
+        public int Id { get; set; }
+        public DateTime Date { get; set; }
+        public string Text { get; set; } = string.Empty;
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,15 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class ComponentViewModel : IComponentModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название компонента")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Cost { get; set; }
+        public IStoreKeeperModel StoreKeeper { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/HelperModels/ComponentSelectionViewModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreContracts.ViewModels.HelperModels
+{
+	public class ComponentSelectionViewModel
+	{
+		public int Id { get; set; }
+		public bool IsSelected { get; set; }
+		public int Quantity { get; set; }
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,21 @@
+using ComputerHardwareStoreDataModels.Enums;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+        [DisplayName("Сумма")]
+        public double Sum { get; set; }
+        [DisplayName("Статус")]
+        public OrderStatus Status { get; set; }
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; }
+        [DisplayName("Дата выполнения")]
+        public DateTime? DateImplement { get; set; }
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ProductViewModel.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class ProductViewModel : IProductModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название изделия")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+        public IStoreKeeperModel StoreKeeper { get; set; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/PurchaseViewModel.cs

@@ -0,0 +1,21 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class PurchaseViewModel : IPurchaseModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Стоимость")]
+        public double Cost { get; set; }
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; }
+        public DateTime? DateImplement { get; set; }
+        public int VendorId { get; set; }
+        [DisplayName("Сумма")]
+        public double Sum { get; set; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; set; } = new();
+
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; set; } = new(); 
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ReportBuildProductViewModel.cs

@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+	public class ReportBuildProductViewModel
+	{
+		public string BuildName { get; set; } = string.Empty;
+		public List<(string Product, int Price)> Products { get; set; } = new();
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/ReportProductBuildViewModel.cs

@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+	public class ReportProductBuildViewModel
+	{
+		public string ProductName { get; set;} = string.Empty;
+		public List<(string Build, int Price)> Builds { get; set; } = new();
+	}
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/StoreKeeperViewModel.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class StoreKeeperViewModel : IStoreKeeperModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Имя кладовщика")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Логин")]
+        public string Login { get; set; } = string.Empty;
+        [DisplayName("Пароль")]
+        public string Password { get; set; } = string.Empty;
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreContracts/ViewModels/VendorViewModel.cs

@@ -0,0 +1,16 @@
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerHardwareStoreContracts.ViewModels
+{
+    public class VendorViewModel : IVendorModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Имя продавца")]
+        public string Name { get; set; } = string.Empty;
+        [DisplayName("Логин")]
+        public string Login { get; set; } = string.Empty;
+        [DisplayName("Пароль")]
+        public string Password { get; set; } = string.Empty;
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/ComputerHardwareStoreDataModels.csproj

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

ComputerHardwareStore/ComputerHardwareStoreDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,11 @@
+namespace ComputerHardwareStoreDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+        Принят = 0,
+        Выполняется = 1,
+        Готов = 2,
+        Выдан = 3,
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/IId.cs

@@ -0,0 +1,7 @@
+namespace ComputerHardwareStoreDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IBuildModel.cs

@@ -0,0 +1,11 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IBuildModel : IId
+    {
+        string Name { get; }
+        double Price { get; }
+        IVendorModel Vendor { get; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponents { get; }
+        public List<ICommentModel> Comments { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/ICommentModel.cs

@@ -0,0 +1,8 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface ICommentModel : IId
+    {
+        DateTime Date { get; }
+        string Text { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IComponentModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IComponentModel : IId
+    {
+        string Name { get; }
+        double Cost { get; }
+        IStoreKeeperModel StoreKeeper { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs

@@ -0,0 +1,13 @@
+using ComputerHardwareStoreDataModels.Enums;
+
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IOrderModel : IId
+    {
+        double Sum { get; }
+        OrderStatus Status { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
+        public Dictionary<int, (IProductModel, int)> OrderProducts { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IProductModel.cs

@@ -0,0 +1,10 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IProductModel : IId
+    {
+        string Name { get; }
+        double Price { get; }
+        public IStoreKeeperModel StoreKeeper { get; }
+        public Dictionary<int, (IComponentModel, int)> ProductComponents { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IPurchaseModel.cs

@@ -0,0 +1,12 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IPurchaseModel : IId
+    {
+        int VendorId { get; }
+        double Cost { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuilds { get; }
+        public Dictionary<int, (IProductModel, int)> PurchaseProducts { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IStoreKeeperModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IStoreKeeperModel : IId
+    {
+        string Name { get; }
+        string Login { get; }
+        string Password { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IVendorModel.cs

@@ -0,0 +1,9 @@
+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IVendorModel : IId
+    {
+        string Name { get; }
+        string Login { get; }
+        string Password { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/ComputerHardwareStoreDBContext.cs

@@ -0,0 +1,29 @@
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement
+{
+    public class ComputerHardwareStoreDBContext : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+			//optionsBuilder.UseNpgsql("Host=192.168.1.61:5432;Database=computerhardwarestore;Username=compstore;Password=compstore");
+			optionsBuilder.UseNpgsql("Host=localhost;Port=5432;Database=ComputerHardwareStore;Username=postgres;Password=postgres");
+			AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+		}
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Product> Products { set; get; }
+        public virtual DbSet<ProductComponent> ProductComponents { set; get; }
+
+        public virtual DbSet<StoreKeeper> StoreKeepers { set; get; }
+        public virtual DbSet<Build> Builds { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<OrderProduct> OrderProducts { set; get; }
+        public virtual DbSet<BuildComponent> BuildComponents { set; get; }
+        public virtual DbSet<Comment> Comments { set; get; }
+        public virtual DbSet<Vendor> Vendors { set; get; }
+        public virtual DbSet<Purchase> Purchases { set; get; }
+        public virtual DbSet<PurchaseBuild> PurchaseBuilds { set; get; }
+        public virtual DbSet<PurchaseProduct> PurchaseProducts { set; get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/ComputerHardwareStoreDatabaseImplement.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputerHardwareStoreContracts\ComputerHardwareStoreContracts.csproj" />
+    <ProjectReference Include="..\ComputerHardwareStoreDataModels\ComputerHardwareStoreDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/BuildStorage.cs

@@ -0,0 +1,125 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class BuildStorage : IBuildStorage
+    {
+        public List<BuildViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Select(b => b.GetViewModel)
+                .ToList();
+        }
+
+        public List<BuildViewModel> GetFilteredList(BuildSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                // только те, что созданы пользователем
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.VendorId
+                // если есть хотя бы 1 общий компонент с товарами
+                && !model.ProductId.HasValue || b.Components.FirstOrDefault(
+                    c => c.Component.ProductComponents.FirstOrDefault(
+                        p => p.ProductId == model.ProductId)
+                    != null)
+                != null)
+                // вместе с комментами
+                .Include(b => b.Comments)
+                // вместе с компонентами
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Select(b => b.GetViewModel)
+                .ToList();
+        }
+
+        public BuildViewModel? GetElement(BuildSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Builds
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.VendorId)
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .FirstOrDefault(b =>
+                (!string.IsNullOrEmpty(model.Name) && b.Name == model.Name) ||
+                (model.Id.HasValue && b.Id == model.Id))?
+                .GetViewModel;
+        }        
+
+        public BuildViewModel? Insert(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newBuild = Build.Create(context, model);
+            if (newBuild == null)
+            {
+                return null;
+            }
+            context.Builds.Add(newBuild);
+            context.SaveChanges();
+            return context.Builds
+                .Include(b => b.Vendor)
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .FirstOrDefault(p => p.Id == newBuild.Id)?
+                .GetViewModel;
+        }
+
+        public BuildViewModel? Update(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var build = context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.Vendor.Id)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (build == null)
+            {
+                return null;
+            }
+            context.Update(model);
+            context.SaveChanges();
+            return build.GetViewModel;
+        }
+        public BuildViewModel? Delete(BuildBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var build = context.Builds
+                .Include(b => b.Comments)
+                .Include(b => b.Components)
+                .ThenInclude(b => b.Component)
+                .Include(b => b.Vendor)
+                .Where(b => b.Vendor.Id == model.Vendor.Id)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (build == null)
+            {
+                return null;
+            }
+            context.Builds.Remove(build);
+            context.SaveChanges();
+            return build.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/CommentStorage.cs

@@ -0,0 +1,77 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class CommentStorage : ICommentStorage
+    {
+        public List<CommentViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<CommentViewModel> GetFilteredList(CommentSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public CommentViewModel? GetElement(CommentSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Comments
+                .FirstOrDefault(x => x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public CommentViewModel? Insert(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newComment = Comment.Create(model);
+            if (newComment == null)
+            {
+                return null;
+            }
+            context.Comments.Add(newComment);
+            context.SaveChanges();
+            return newComment.GetViewModel;
+        }
+        public CommentViewModel? Update(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Comments.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+
+        public CommentViewModel? Delete(CommentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Comments.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Comments.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,85 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .Select(c => c.GetViewModel)
+                .ToList();
+        }
+
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .Where(c => c.Name.Contains(model.Name) ||
+                    (c.StoreKeeper.Id == model.StoreKeeperId))
+                .Select(c => c.GetViewModel)
+                .ToList();
+        }
+
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Components
+                .FirstOrDefault(c =>
+                (!string.IsNullOrEmpty(model.Name) && c .Name == model.Name) ||
+                (model.Id.HasValue && c.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Components.FirstOrDefault(c => c.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            context.Components.Remove(element);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,108 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .Select(o => o.GetViewModel)
+                .ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders 
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .Where(o => 
+                (model.Id.HasValue && o.Id == model.Id) ||
+                ((model.DateFrom.HasValue && model.DateTo.HasValue) && 
+                ((model.DateFrom <= o.DateCreate && o.DateCreate <= model.DateTo) ||
+                (o.DateImplement.HasValue && o.DateCreate < model.DateFrom && model.DateFrom < o.DateImplement)))
+                )
+                .Select(o => o.GetViewModel)
+                .ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .FirstOrDefault(o => o.Id == model.Id)?
+                .GetViewModel;
+
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newOrder = Order.Create(context, model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var order = context.Orders
+                    .Include(o => o.Products)
+                    .ThenInclude(o => o.Product)
+                    .FirstOrDefault(o => o.Id == model.Id);
+                if (order == null)
+                {
+                    return null;
+                }
+                order.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return order.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Orders
+                .Include(o => o.Products)
+                .ThenInclude(o => o.Product)
+                .FirstOrDefault(o => o.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/ProductStorage.cs

@@ -0,0 +1,108 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class ProductStorage : IProductStorage
+    {
+        public List<ProductViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public List<ProductViewModel> GetFilteredList(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name)) 
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Where(p => (p.StoreKeeper.Id == model.StoreKeeperId)
+                    // есть хотя бы 1 общий со сборкой компонент
+                    && (!model.BuildId.HasValue || p.Components.FirstOrDefault
+                        (c => c.Component.BuldComponents.FirstOrDefault(
+                            b => b.BuildId == model.BuildId)
+                        != null)
+                    != null))
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public ProductViewModel? GetElement(ProductSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue) 
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p =>
+                (!string.IsNullOrEmpty(model.Name) && p.Name == model.Name) ||
+                (model.Id.HasValue && p.Id == model.Id))?
+                .GetViewModel;
+        }
+
+        public ProductViewModel? Insert(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newProduct = Product.Create(context, model);
+            if (newProduct == null)
+            {
+                return null;
+            }
+            context.Products.Add(newProduct);
+            context.SaveChanges();
+            return context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == newProduct.Id)?
+                .GetViewModel;
+        }
+
+        public ProductViewModel? Update(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (product == null)
+            {
+                return null; 
+            }
+            context.Update(model);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+
+        public ProductViewModel? Delete(ProductBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var product = context.Products
+                .Include(p => p.Components)
+                .ThenInclude(p => p.Component)
+                .FirstOrDefault(p => p.Id == model.Id);
+            if (product == null) 
+            {
+                return null;
+            }
+            context.Products.Remove(product);
+            context.SaveChanges();
+            return product.GetViewModel;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/PurchaseStorage.cs

@@ -0,0 +1,118 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class PurchaseStorage : IPurchaseStorage
+    {
+        public List<PurchaseViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+        
+        public List<PurchaseViewModel> GetFilteredList(PurchaseSearchModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .Where(p =>
+                (model.VendorId.HasValue && model.VendorId == p.VendorId) ||
+                (model.Id.HasValue && p.Id == model.Id) ||
+                ((model.DateFrom.HasValue && model.DateTo.HasValue) &&
+                ((model.DateFrom <= p.DateCreate && p.DateCreate <= model.DateTo) ||
+                (p.DateImplement.HasValue && p.DateCreate < model.DateFrom && model.DateFrom < p.DateImplement)))
+                )
+                .Select(p => p.GetViewModel)
+                .ToList();
+        }
+
+        public PurchaseViewModel? GetElement(PurchaseSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .FirstOrDefault(p => p.Id == model.Id)?
+                .GetViewModel;
+        }
+
+        public PurchaseViewModel? Insert(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newPurchase = Purchase.Create(context, model);
+            if (newPurchase == null)
+            {
+                return null;
+            }
+            context.Purchases.Add(newPurchase);
+            context.SaveChanges();
+            return newPurchase.GetViewModel;
+        }
+
+        public PurchaseViewModel? Update(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var purchase = context.Purchases
+                    .Include(p => p.Builds)
+                    .ThenInclude(p => p.Build)
+                    .Include(p => p.Products)
+                    .ThenInclude(p => p.Product)
+                    .FirstOrDefault(p => p.Id == model.Id);
+                if (purchase == null)
+                {
+                    return null;
+                }
+                purchase.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return purchase.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public PurchaseViewModel? Delete(PurchaseBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Purchases
+                .Include(p => p.Builds)
+                .ThenInclude(p => p.Build)
+                .Include(p => p.Products)
+                .ThenInclude(p => p.Product)
+                .FirstOrDefault(o => o.Id == model.Id);
+            if (element != null)
+            {
+                context.Purchases.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/StoreKeeperStorage.cs

@@ -0,0 +1,86 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class StoreKeeperStorage : IStoreKeeperStorage
+    {
+        public StoreKeeperViewModel? GetElement(StoreKeeperSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Login)
+                && x.Login == model.Login)
+                || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public List<StoreKeeperViewModel> GetFilteredList(StoreKeeperSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .Where(x => x.Login.Contains(model.Login))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<StoreKeeperViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.StoreKeepers
+                .Include(x => x.Components)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public StoreKeeperViewModel? Insert(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newStoreKeeper = StoreKeeper.Create(context, model);
+            if (newStoreKeeper == null)
+            {
+                return null;
+            }
+            context.StoreKeepers.Add(newStoreKeeper);
+            context.SaveChanges();
+            return newStoreKeeper.GetViewModel;
+        }
+
+        public StoreKeeperViewModel? Update(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.StoreKeepers.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+        public StoreKeeperViewModel? Delete(StoreKeeperBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.StoreKeepers.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.StoreKeepers.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Implements/VendorStorage.cs

@@ -0,0 +1,84 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.SearchModels;
+using ComputerHardwareStoreContracts.StorageContracts;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDatabaseImplement.Models;
+
+namespace ComputerHardwareStoreDatabaseImplement.Implements
+{
+    public class VendorStorage : IVendorStorage
+    {
+        public VendorViewModel? GetElement(VendorSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Login)
+                && x.Login == model.Login)
+                || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public List<VendorViewModel> GetFilteredList(VendorSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                return new();
+            }
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .Where(x => x.Login.Contains(model.Login))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<VendorViewModel> GetFullList()
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            return context.Vendors
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public VendorViewModel? Insert(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var newVendor = Vendor.Create(context, model);
+            if (newVendor == null)
+            {
+                return null;
+            }
+            context.Vendors.Add(newVendor);
+            context.SaveChanges();
+            return newVendor.GetViewModel;
+        }
+
+        public VendorViewModel? Update(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Vendors.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
+        }
+        public VendorViewModel? Delete(VendorBindingModel model)
+        {
+            using var context = new ComputerHardwareStoreDBContext();
+            var element = context.Vendors.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Vendors.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240528172646_create.Designer.cs

@@ -0,0 +1,566 @@
+// <auto-generated />
+using System;
+using ComputerHardwareStoreDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputerHardwareStoreDBContext))]
+    [Migration("20240528172646_create")]
+    partial class create
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Builds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("ComponentId");
+
+                    b.ToTable("BuildComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int?>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrderId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("OrderProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int?>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseBuilds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StoreKeepers");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Vendors");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", "Vendor")
+                        .WithMany("Builds")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Vendor");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany("Components")
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("BuldComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Component");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", "StoreKeeperЗЛ")
+                        .WithMany("Components")
+                        .HasForeignKey("StoreKeeperId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("StoreKeeperЗЛ");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("ProductId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Order", "Order")
+                        .WithMany("Products")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", null)
+                        .WithMany("Products")
+                        .HasForeignKey("StoreKeeperId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ProductComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", null)
+                        .WithMany("Purchases")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Builds")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("BuldComponents");
+
+                    b.Navigation("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Purchases");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/20240528172646_create.cs

@@ -0,0 +1,432 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class create : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "StoreKeepers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Login = table.Column<string>(type: "text", nullable: false),
+                    Password = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StoreKeepers", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Vendors",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Login = table.Column<string>(type: "text", nullable: false),
+                    Password = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Vendors", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false),
+                    StoreKeeperId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Components_StoreKeepers_StoreKeeperId",
+                        column: x => x.StoreKeeperId,
+                        principalTable: "StoreKeepers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Products",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false),
+                    StoreKeeperId = table.Column<int>(type: "integer", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Products", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Products_StoreKeepers_StoreKeeperId",
+                        column: x => x.StoreKeeperId,
+                        principalTable: "StoreKeepers",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Builds",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false),
+                    VendorId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Builds", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Builds_Vendors_VendorId",
+                        column: x => x.VendorId,
+                        principalTable: "Vendors",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Purchases",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    VendorId = table.Column<int>(type: "integer", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp without time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Purchases", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Purchases_Vendors_VendorId",
+                        column: x => x.VendorId,
+                        principalTable: "Vendors",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp without time zone", nullable: true),
+                    ProductId = table.Column<int>(type: "integer", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ProductComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ProductId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ProductComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ProductComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ProductComponents_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BuildComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    BuildId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BuildComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_BuildComponents_Builds_BuildId",
+                        column: x => x.BuildId,
+                        principalTable: "Builds",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_BuildComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Comments",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Date = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    Text = table.Column<string>(type: "text", nullable: false),
+                    BuildId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Comments", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Comments_Builds_BuildId",
+                        column: x => x.BuildId,
+                        principalTable: "Builds",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PurchaseBuilds",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PurchaseId = table.Column<int>(type: "integer", nullable: false),
+                    BuildId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PurchaseBuilds", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PurchaseBuilds_Builds_BuildId",
+                        column: x => x.BuildId,
+                        principalTable: "Builds",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PurchaseBuilds_Purchases_PurchaseId",
+                        column: x => x.PurchaseId,
+                        principalTable: "Purchases",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PurchaseProducts",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PurchaseId = table.Column<int>(type: "integer", nullable: false),
+                    ProductId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PurchaseProducts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PurchaseProducts_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PurchaseProducts_Purchases_PurchaseId",
+                        column: x => x.PurchaseId,
+                        principalTable: "Purchases",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "OrderProducts",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    OrderId = table.Column<int>(type: "integer", nullable: false),
+                    ProductId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_OrderProducts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_OrderProducts_Orders_OrderId",
+                        column: x => x.OrderId,
+                        principalTable: "Orders",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_OrderProducts_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BuildComponents_BuildId",
+                table: "BuildComponents",
+                column: "BuildId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BuildComponents_ComponentId",
+                table: "BuildComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Builds_VendorId",
+                table: "Builds",
+                column: "VendorId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Comments_BuildId",
+                table: "Comments",
+                column: "BuildId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Components_StoreKeeperId",
+                table: "Components",
+                column: "StoreKeeperId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OrderProducts_OrderId",
+                table: "OrderProducts",
+                column: "OrderId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OrderProducts_ProductId",
+                table: "OrderProducts",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_ProductId",
+                table: "Orders",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProductComponents_ComponentId",
+                table: "ProductComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProductComponents_ProductId",
+                table: "ProductComponents",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Products_StoreKeeperId",
+                table: "Products",
+                column: "StoreKeeperId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseBuilds_BuildId",
+                table: "PurchaseBuilds",
+                column: "BuildId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseBuilds_PurchaseId",
+                table: "PurchaseBuilds",
+                column: "PurchaseId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseProducts_ProductId",
+                table: "PurchaseProducts",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseProducts_PurchaseId",
+                table: "PurchaseProducts",
+                column: "PurchaseId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Purchases_VendorId",
+                table: "Purchases",
+                column: "VendorId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "BuildComponents");
+
+            migrationBuilder.DropTable(
+                name: "Comments");
+
+            migrationBuilder.DropTable(
+                name: "OrderProducts");
+
+            migrationBuilder.DropTable(
+                name: "ProductComponents");
+
+            migrationBuilder.DropTable(
+                name: "PurchaseBuilds");
+
+            migrationBuilder.DropTable(
+                name: "PurchaseProducts");
+
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Builds");
+
+            migrationBuilder.DropTable(
+                name: "Purchases");
+
+            migrationBuilder.DropTable(
+                name: "Products");
+
+            migrationBuilder.DropTable(
+                name: "Vendors");
+
+            migrationBuilder.DropTable(
+                name: "StoreKeepers");
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Migrations/ComputerHardwareStoreDBContextModelSnapshot.cs

@@ -0,0 +1,563 @@
+// <auto-generated />
+using System;
+using ComputerHardwareStoreDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace ComputerHardwareStoreDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputerHardwareStoreDBContext))]
+    partial class ComputerHardwareStoreDBContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Builds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("ComponentId");
+
+                    b.ToTable("BuildComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int?>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrderId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("OrderProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int?>("StoreKeeperId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreKeeperId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("VendorId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("VendorId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("BuildId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BuildId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseBuilds");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ProductId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PurchaseId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StoreKeepers");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Vendors");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", "Vendor")
+                        .WithMany("Builds")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Vendor");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.BuildComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany("Components")
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("BuldComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Component");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Comment", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", "StoreKeeperЗЛ")
+                        .WithMany("Components")
+                        .HasForeignKey("StoreKeeperId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("StoreKeeperЗЛ");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("ProductId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.OrderProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Order", "Order")
+                        .WithMany("Products")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", null)
+                        .WithMany("Products")
+                        .HasForeignKey("StoreKeeperId");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.ProductComponent", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ProductComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany("Components")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Vendor", null)
+                        .WithMany("Purchases")
+                        .HasForeignKey("VendorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseBuild", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Build", "Build")
+                        .WithMany()
+                        .HasForeignKey("BuildId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Builds")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Build");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.PurchaseProduct", b =>
+                {
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputerHardwareStoreDatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Build", b =>
+                {
+                    b.Navigation("Components");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("BuldComponents");
+
+                    b.Navigation("ProductComponents");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Order", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.StoreKeeper", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("ComputerHardwareStoreDatabaseImplement.Models.Vendor", b =>
+                {
+                    b.Navigation("Builds");
+
+                    b.Navigation("Purchases");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Build.cs

@@ -0,0 +1,88 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Build : IBuildModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        [NotMapped]
+        private Dictionary<int, (IComponentModel, int)>? _buildComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> BuildComponents
+        {
+            get
+            {
+                if (_buildComponents == null)
+                {
+                    _buildComponents = Components
+                        .ToDictionary(bc => bc.ComponentId, bc =>
+                        (bc.Component as IComponentModel, bc.Count));
+                }
+                return _buildComponents;
+            }   
+        }
+        [ForeignKey("BuildId")]
+        public virtual List<BuildComponent> Components { get; set; } = new();
+        [ForeignKey("BuildId")]
+
+        public virtual List<Comment> Comments { get; set; } = new();
+        [NotMapped]
+        List<ICommentModel> IBuildModel.Comments => Comments.Select(c => c as ICommentModel).ToList();
+
+        public virtual Vendor Vendor { get; private set; } = new();
+        IVendorModel IBuildModel.Vendor => Vendor as IVendorModel;
+
+        public static Build? Create(ComputerHardwareStoreDBContext context, BuildBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Price = model.Price,
+                Vendor = context.Vendors.First(v => v.Id == model.Vendor.Id),
+                Components = context.Components
+                    .Where(c => model.BuildComponents.ContainsKey(c.Id))
+                    .Select(c => new BuildComponent()
+                    {
+                        BuildId = model.Id,
+                        ComponentId = c.Id,
+                        Component = c,
+                        Count = model.BuildComponents[c.Id].Item2
+                    }).ToList()
+            };
+        }
+
+        public void Update(BuildBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Price = model.Price;
+        }
+
+        public BuildViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Price = Price,
+            Vendor = Vendor,
+            Comments = Comments.Select(c => c as ICommentModel).ToList(),
+            BuildComponents = BuildComponents
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/BuildComponent.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class BuildComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int BuildId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Build Build { get; set; } = new();
+        public virtual Component Component { get; set; } = new();
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Comment.cs

@@ -0,0 +1,49 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Comment : ICommentModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public DateTime Date { get; set; }
+        [Required]
+        public string Text { get; set; } = string.Empty;
+        [Required]
+        public int BuildId { get; set; }
+        public virtual Build Build { get; set; } = new();
+        public static Comment? Create(CommentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new()
+            {
+                Id = model.Id,
+                Date = model.Date,
+                Text = model.Text,
+                BuildId = model.BuildId,
+            };
+        }
+
+        public void Update(CommentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Text = model.Text;
+        }
+
+        public CommentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Date = Date,
+            Text = Text,
+        };
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDatabaseImplement/Models/Component.cs

@@ -0,0 +1,56 @@
+using ComputerHardwareStoreContracts.BindingModels;
+using ComputerHardwareStoreContracts.ViewModels;
+using ComputerHardwareStoreDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputerHardwareStoreDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [Required]
+        public virtual StoreKeeper? StoreKeeperЗЛ { get; set; }
+        [NotMapped]
+        public IStoreKeeperModel? StoreKeeper { get; set; }
+
+        [ForeignKey("ComponentId")]
+        public virtual List<ProductComponent> ProductComponents { get; set; } = new();
+        [ForeignKey("ComponentId")]
+        public virtual List<BuildComponent> BuldComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Cost = model.Cost,
+                StoreKeeper = model.StoreKeeper
+            };
+        }
+        public void Update (ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = string.IsNullOrEmpty(model.Name) ? Name : model.Name;
+            Cost = model.Cost;
+        }
+
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Cost = Cost
+        };
+    }
+}