using IcecreamVan.Extensions;
using IcecreamVan.Infrastructure;
using IcecreamVan.Exceptions;

namespace IcecreamVan.DataModels;

public class ProductHistoryDataModel(string productId, double oldPrice) : IValidation
{
    public string ProductId { get; private set; } = productId;

    public double OldPrice { get; private set; } = oldPrice;

    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;

    public void Validate()
    {
        if (ProductId.IsEmpty())
            throw new ValidationException("Field Product ID is empty");

        if (!ProductId.IsGuid())
            throw new ValidationException("The value is NOT a unique identifier");

        if (OldPrice <= 0)
            throw new ValidationException("Field OldPrice is less than or equal to 0");
    }
}