add Assembly, Component, Product contracts

ComputerShopContracts/BindingModels/AssemblyBindingModel.cs

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+using ComputerShopDataModels.Models;
+
+namespace ComputerShopContracts.BindingModels
+{
+	public class AssemblyBindingModel : IAssemblyModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; set; }
+
+		public string AssemblyName { get; set; } = string.Empty;
+
+		public double Cost { get; set; }
+
+		public string Category { get; set; } = string.Empty;
+
+		public Dictionary<int, (IComponentModel, int)> AssemblyComponents { get; set; } = new();
+	}
+}

ComputerShopContracts/BindingModels/ComponentBindingModel.cs

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+using ComputerShopDataModels.Models;
+
+namespace ComputerShopContracts.BindingModels
+{
+	public class ComponentBindingModel : IComponentModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; set; }
+
+		public string ComponentName { get; set; } = string.Empty;
+
+		public double Cost { get; set; }
+	}
+}

ComputerShopContracts/BindingModels/ProductBindingModel.cs

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+using ComputerShopDataModels.Models;
+
+namespace ComputerShopContracts.BindingModels
+{
+	public class ProductBindingModel : IProductModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; set; }
+
+		public string ProductName { get; set; } = string.Empty;
+
+		public double Cost { get; set; }
+
+		public int Warranty { get; set; }
+
+		public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+
+		public int? ShipmentId { get; set; }
+	}
+}

ComputerShopContracts/BusinessLogicContracts/IAssemblyLogic.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.BusinessLogicContracts
+{
+	public interface IAssemblyLogic
+	{
+		List<AssemblyViewModel>? ReadList(AssemblySearchModel? Model);
+		
+		AssemblyViewModel? ReadElement(AssemblySearchModel Model);
+		
+		bool Create(AssemblyBindingModel Model);
+		
+		bool Update(AssemblyBindingModel Model);
+		
+		bool Delete(AssemblyBindingModel Model);
+	}
+}

ComputerShopContracts/BusinessLogicContracts/IComponentLogic.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.BusinessLogicContracts
+{
+	public interface IComponentLogic
+	{
+		List<ComponentViewModel>? ReadList(ComponentSearchModel? Model);
+		
+		ComponentViewModel? ReadElement(ComponentSearchModel Model);
+		
+		bool Create(ComponentBindingModel Model);
+		
+		bool Update(ComponentBindingModel Model);
+		
+		bool Delete(ComponentBindingModel Model);
+	}
+}

ComputerShopContracts/BusinessLogicContracts/IProductLogic.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.BusinessLogicContracts
+{
+	public interface IProductLogic
+	{
+		List<ProductViewModel>? ReadList(ProductSearchModel? Model);
+
+		ProductViewModel? ReadElement(ProductSearchModel Model);
+
+		bool Create(ProductBindingModel Model);
+
+		bool Update(ProductBindingModel Model);
+
+		bool Delete(ProductBindingModel Model);
+	}
+}

ComputerShopContracts/SearchModels/AssemblySearchModel.cs

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+namespace ComputerShopContracts.SearchModels
+{
+	public class AssemblySearchModel
+	{
+		public int? Id { get; set; }
+
+		public int? UserId { get; set; }
+
+		public string? Category { get; set; }
+	}
+}

ComputerShopContracts/SearchModels/ComponentSearchModel.cs

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+namespace ComputerShopContracts.SearchModels
+{
+	public class ComponentSearchModel
+	{
+		public int? Id { get; set; }
+
+		public int? UserId { get; set; }
+	}
+}

ComputerShopContracts/SearchModels/ProductSearchModel.cs

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+namespace ComputerShopContracts.SearchModels
+{
+	public class ProductSearchModel
+	{
+		public int? Id { get; set; }
+
+		public int? UserId { get; set; }
+
+		public int? ShipmentId { get; set; }
+	}
+}

ComputerShopContracts/StorageContracts/IAssemblyStorage.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.StorageContracts
+{
+	public interface IAssemblyStorage
+	{
+		List<AssemblyViewModel> GetFullList();
+
+		List<AssemblyViewModel> GetFilteredList(AssemblySearchModel Model);
+
+		AssemblyViewModel? GetElement(AssemblySearchModel Model);
+
+		AssemblyViewModel? Insert(AssemblyBindingModel Model);
+
+		AssemblyViewModel? Update(AssemblyBindingModel Model);
+
+		AssemblyViewModel? Delete(AssemblyBindingModel Model);
+	}
+}

ComputerShopContracts/StorageContracts/IComponentStorage.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.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);
+	}
+}

ComputerShopContracts/StorageContracts/IProductStorage.cs

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+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.ViewModels;
+
+namespace ComputerShopContracts.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);
+	}
+}

ComputerShopContracts/ViewModels/AssemblyViewModel.cs

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+using ComputerShopDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerShopContracts.ViewModels
+{
+	public class AssemblyViewModel : IAssemblyModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; set; }
+
+		[DisplayName("Название сборки")]
+		public string AssemblyName { get; set; } = string.Empty;
+
+		[DisplayName("Стоимость")]
+		public double Cost { get; set; }
+
+		[DisplayName("Категория")]
+		public string Category { get; set; } = string.Empty;
+
+		public Dictionary<int, (IComponentModel, int)> AssemblyComponents { get; set; } = new();
+	}
+}

ComputerShopContracts/ViewModels/ComponentViewModel.cs

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+using ComputerShopDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerShopContracts.ViewModels
+{
+	public class ComponentViewModel : IComponentModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; }
+
+		[DisplayName("Название комплектующей")]
+		public string ComponentName { get; } = string.Empty;
+
+		[DisplayName("Стоимость")]
+		public double Cost { get; }
+	}
+}

ComputerShopContracts/ViewModels/ProductViewModel.cs

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+using ComputerShopDataModels.Models;
+using System.ComponentModel;
+
+namespace ComputerShopContracts.ViewModels
+{
+	public class ProductViewModel : IProductModel
+	{
+		public int Id { get; set; }
+
+		public int UserId { get; set; }
+
+		[DisplayName("Название товара")]
+		public string ProductName { get; set; } = string.Empty;
+
+		[DisplayName("Стоимость")]
+		public double Cost { get; set; }
+
+		[DisplayName("Гарантия (мес.)")]
+		public int Warranty { get; set; }
+
+		public Dictionary<int, (IComponentModel, int)> ProductComponents { get; set; } = new();
+
+		public int? ShipmentId { get; set; }
+
+		[DisplayName("Поставщик")]
+		public string ProviderName { get; set; } = string.Empty;
+	}
+}