qdr.app.studiou.orders2printpack/App/ProductStorage/VariantDto.cs

namespace qdr.app.studiou.orders2printpack.ProductStorage
{
    public class VariantDto : IIdentifierGetter
    {
        public string Name { get; set; } = string.Empty;
        public decimal Price { get; set; } = 0;

        public int QuantityMinimum { get; set; } = 0;
        public int QuantityMaximum { get; set; } = 0;


        public void CopyTo(VariantDto destination)
        {
            destination.Name = Name;
            destination.Price = Price;
            destination.QuantityMaximum = QuantityMaximum;
            destination.QuantityMinimum = QuantityMinimum;
        }
        public string GetIdentifier()
        {
            if (string.IsNullOrWhiteSpace(Name))
                return string.Empty;
            
            return Name.ToLower();
        }

        public override string ToString()
        {
              if (string.IsNullOrWhiteSpace(Name))
                return string.Empty;
            return Name.ToLower();
        }

        bool IEquatable<IIdentifierGetter>.Equals(IIdentifierGetter? other)
        {
            return other != null && other.GetIdentifier() == GetIdentifier();
        }
    }
    
}