demo/DomainModels.cs

namespace ToyStoreApp;

public sealed record AppUser(int UserId, string FullName, string RoleName)
{
    public bool IsAdmin => RoleName.Contains("администратор", StringComparison.CurrentCultureIgnoreCase);
    public bool IsManager => RoleName.Contains("менеджер", StringComparison.CurrentCultureIgnoreCase);
    public bool IsClient => RoleName.Contains("клиент", StringComparison.CurrentCultureIgnoreCase);
    public bool CanSearch => IsAdmin || IsManager;
    public bool CanEditProducts => IsAdmin;
    public bool CanEditOrders => IsAdmin;
    public bool CanViewOrders => IsAdmin || IsManager;
}

public sealed class ProductView
{
    public int ProductId { get; set; }
    public string Article { get; set; } = "";
    public string Name { get; set; } = "";
    public string Category { get; set; } = "";
    public string Description { get; set; } = "";
    public string Manufacturer { get; set; } = "";
    public string Supplier { get; set; } = "";
    public decimal Price { get; set; }
    public decimal DiscountPercent { get; set; }
    public decimal FinalPrice => Math.Round(Price * (100 - DiscountPercent) / 100, 2);
    public string Unit { get; set; } = "";
    public int StockQuantity { get; set; }
    public string ImagePath { get; set; } = "picture.png";
}

public sealed class OrderView
{
    public int OrderId { get; set; }
    public string Customer { get; set; } = "";
    public string PickupPoint { get; set; } = "";
    public string Status { get; set; } = "";
    public DateTime? OrderDate { get; set; }
    public DateTime? DeliveryDate { get; set; }
    public string ReceiveCode { get; set; } = "";
    public string Articles { get; set; } = "";
}