ex-inh-04-supermarket/Supermarket/Food.cs

namespace Supermarket;

public sealed class Food : Product
{
    private const char AllergenSeparator = '|';
    private readonly SortedSet<AllergenType> _allergens;
    
    public Food(string productName, string barcode, int quantity, params AllergenType[] allergens)
        : base(productName, barcode, quantity)
    {
        _allergens = new SortedSet<AllergenType>(allergens);
    }
    
    public AllergenType[] Allergens => _allergens.ToArray();
    
    protected override string[] CsvColumnNames => ["Barcode", "ProductName", "Quantity", "Allergens"];

    protected override string[] CsvColumnValues
    {
        get
        {
            string allergens = string.Join(AllergenSeparator, Allergens);
            return [Barcode, ProductName, Quantity.ToString(), allergens];
        }
    }
    
    public bool AddAllergen(AllergenType allergen)
    {
        if (ContainsAnyAllergen(allergen))
        {
            return false;
        }
        
        _allergens.Add(allergen);
        return true;
    }
    
    public bool RemoveAllergen(AllergenType allergen) => _allergens.Remove(allergen);

    public bool ContainsAnyAllergen(params AllergenType[] allergens)
    {
        foreach (var allergen in allergens)
        {
            if (_allergens.Contains(allergen))
            {
                return true;
            }
        }
        
        return false;
    }
}