namespace ExpenseTracker.Domain.Enums;

public abstract class Currency : Enumeration<Currency>
{
    public static readonly Currency Default = new DefaultCurrency();
    public static readonly Currency AUD = new AudCurrency();
    public static readonly Currency USD = new UsdCurrency();
    public static readonly Currency EUR = new EurCurrency();
    public static readonly Currency UAH = new UahCurrency();

    protected Currency(int value, string name) : base(value, name) { }

    private sealed class DefaultCurrency : Currency
    {
        public DefaultCurrency() : base(0, "Default") { }
    }

    private sealed class AudCurrency : Currency
    {
        public AudCurrency() : base (036, "AUD") { }
    }

    private sealed class UsdCurrency : Currency
    {
        public UsdCurrency() : base(840, "USD") { }
    }

    private sealed class UahCurrency : Currency
    {
        public UahCurrency() : base(978, "UAH") { }
    }

    private sealed class EurCurrency : Currency
    {
        public EurCurrency() : base(980, "EUR") { }
    }
}