card-game-engine/RuleEngine/Core/GameState.cs

namespace RuleEngine.Core;

using RuleEngine;

public class GameEvent
{
    public string Type { get; set; } = "";
    public string Player { get; set; } = "";
    public string? Description { get; set; }
    public int? Tile { get; set; }
}

public class MahjongGameState
{
    public string Phase { get; set; } = "";
    public Dictionary<string, List<int>> Hands { get; set; } = new();
    public Dictionary<string, List<Meld>> Exposed { get; set; } = new();
    public Dictionary<string, List<int>> FlowerPool { get; set; } = new();
    public List<int> Deck { get; set; } = new();
    public List<int> DiscardPool { get; set; } = new();
    public int? LastDiscard { get; set; }
    public string? LastDiscardPlayer { get; set; }
    public string CurrentPlayer { get; set; } = "";
    public List<string> PlayerOrder { get; set; } = new();
    public string Dealer { get; set; } = "";
    public int RoundNumber { get; set; }
    public Dictionary<string, int> Scores { get; set; } = new();
    public List<string> HuPlayers { get; set; } = new();
    public List<string> AlivePlayers { get; set; } = new();
    public Dictionary<string, bool> FuFlags { get; set; } = new();
    public bool IsDeckExhausted { get; set; }
    public List<GameEvent> RecentEvents { get; set; } = new();
    public int FlowerReplaced { get; set; }

    public MahjongGameState Clone()
    {
        return new MahjongGameState
        {
            Phase = Phase,
            Hands = Hands.ToDictionary(kv => kv.Key, kv => new List<int>(kv.Value)),
            Exposed = Exposed.ToDictionary(kv => kv.Key, kv => kv.Value.Select(m => m.Clone()).ToList()),
            FlowerPool = FlowerPool.ToDictionary(kv => kv.Key, kv => new List<int>(kv.Value)),
            Deck = new List<int>(Deck),
            DiscardPool = new List<int>(DiscardPool),
            LastDiscard = LastDiscard,
            LastDiscardPlayer = LastDiscardPlayer,
            CurrentPlayer = CurrentPlayer,
            PlayerOrder = new List<string>(PlayerOrder),
            Dealer = Dealer,
            RoundNumber = RoundNumber,
            Scores = new Dictionary<string, int>(Scores),
            HuPlayers = new List<string>(HuPlayers),
            AlivePlayers = new List<string>(AlivePlayers),
            FuFlags = new Dictionary<string, bool>(FuFlags),
            IsDeckExhausted = IsDeckExhausted,
            RecentEvents = new List<GameEvent>(RecentEvents),
            FlowerReplaced = FlowerReplaced
        };
    }

    public void AddEvent(string type, string player, int? tile = null, string? desc = null)
    {
        RecentEvents.Add(new GameEvent
        {
            Type = type,
            Player = player,
            Tile = tile,
            Description = desc
        });
    }
}