Создание моделей данных

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IBuildModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IBuildModel : IId
+    {
+        string BuildName { get; }
+        double Price { get; }
+        int VendorId { get; }
+        public Dictionary<int, (IComponentModel, int)> BuildComponent { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/ICommentModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface ICommentModel : IId
+    {
+        DateTime Date { get; }
+        string Text { get; }
+        int BuildId { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IComponentModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IComponentModel : IId
+    {
+        string ComponentName { get; }
+        double Cost { get; }
+        int StoreKeeperId { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IOrderModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IOrderModel : IId
+    {
+        double Cost { get; }
+        DateTime DateCreate { get; }
+        public Dictionary<int, (IProductModel, int)> OrderProduct { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IProductModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IProductModel : IId
+    {
+        string Name { get; }
+        double Price { get; }
+        public Dictionary<int, (IComponentModel, int)> ProductComponent { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IPurchaseModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IPurchaseModel : IId
+    {
+        double Cost { get; }
+        DateTime DateCreate { get; }
+        int VendorId { get; }
+        double Sum { get; }
+        public Dictionary<int, (IBuildModel, int)> PurchaseBuild { get; }
+        public Dictionary<int, (IProductModel, int)> PurchaseProduct { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IStoreKeeperModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IStoreKeeperModel : IId
+    {
+        string Name { get; }
+        string Login { get; }
+        string Password { get; }
+    }
+}

ComputerHardwareStore/ComputerHardwareStoreDataModels/Models/IVendorModel.cs

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+namespace ComputerHardwareStoreDataModels.Models
+{
+    public interface IVendorModel : IId
+    {
+        string Name { get; }
+        string Login { get; }
+        string Password { get; }
+    }
+}