namespace RuleEngine;

public class Meld
{
    public string Type { get; set; } = "";  // "kezi", "shunzi", "pair", "chi", "pung", "kong_ming", "kong_an", "kong_bu"
    public List<int> Tiles { get; set; } = new();  // -1 = wildcard placeholder
    public bool IsConcealed { get; set; }
    public string SourcePlayer { get; set; } = "";  // who discarded the tile that triggered pung/chi/kong

    public Meld Clone() => new()
    {
        Type = Type,
        Tiles = new List<int>(Tiles),
        IsConcealed = IsConcealed,
        SourcePlayer = SourcePlayer
    };
}

public class MeldsResult
{
    public bool IsWin { get; set; }
    public List<Meld> Melds { get; set; } = new();
    public List<int> PairTiles { get; set; } = new();  // the pair (将牌)
    public List<string> Fans { get; set; } = new();
    public int WildcardsUsed { get; set; }

    public MeldsResult Clone() => new()
    {
        IsWin = IsWin,
        Melds = Melds.Select(m => m.Clone()).ToList(),
        PairTiles = new List<int>(PairTiles),
        Fans = new List<string>(Fans),
        WildcardsUsed = WildcardsUsed
    };
}