namespace Model;

public class UserDeck
{
    public Guid Id { get; set; } = Guid.NewGuid();
    public string Name { get; set; } = "";
    public List<string> Cards { get; set; } = [];
    public List<string> Divers { get; set; } = [];
    public string? Notes { get; set; }
    public string? Season { get; set; } = "Season 1";
    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;

    public bool IsValid => Cards.Count == 40 &&
                           Divers.Count == 2 &&
                           Divers[0] != Divers[1] &&
                           !Cards.Contains(Divers[0]) &&
                           !Cards.Contains(Divers[1]);

    public string ValidationMessage
    {
        get
        {
            if (Cards.Count < 40) return $"Deck needs {40 - Cards.Count} more card{(40 - Cards.Count == 1 ? "" : "s")}.";
            if (Cards.Count > 40) return $"Deck has {Cards.Count - 40} too many cards.";
            if (Divers.Count < 2) return $"Deck needs {2 - Divers.Count} more diver{(2 - Divers.Count == 1 ? "" : "s")}.";
            if (Divers.Count > 2) return "Deck can only have 2 divers.";
            if (Divers.Count == 2 && Divers[0] == Divers[1]) return "Diver cards must be unique.";
            if (Divers.Any(d => Cards.Contains(d))) return "Diver cards cannot be in the main deck.";
            return "Deck is valid.";
        }
    }
}