using System.Collections.Concurrent;
using PolyTraderSharp.Models;

namespace PolyTraderSharp
{
    public enum TradingMode
    {
        Inactive,
        SellOnly,
        Active
    }

    /// <summary>
    /// In-Memory Hot-Path State for PolyTrader.
    /// Replaces database lookups for core trading logic.
    /// </summary>
    public class TradingState
    {
        // Settings
        public bool GlobalTradingPaused { get; set; } = false;
        public TradingMode LiveTradingMode { get; set; } = TradingMode.Inactive;
        public TradingMode DemoTradingMode { get; set; } = TradingMode.Inactive; 
        public bool IsAlchemyHealthy { get; set; } = false;
        public bool EnableBlockchainParser { get; set; } = true;
        public bool DebugPollingLog { get; set; } = false;
        public bool DebugOrderPayloadLog { get; set; } = false;
        public bool SixSharesMinimum { get; set; } = true;

        // Accounts (AccountId -> State)
        public ConcurrentDictionary<int, AccountState> Accounts { get; } = new();

        // Tracked Traders (TraderId -> TrackedTrader)
        public ConcurrentDictionary<int, TrackedTrader> Traders { get; } = new();

        private int _totalCopyTrades = 0;
        public int TotalCopyTrades 
        { 
            get => _totalCopyTrades; 
            set => _totalCopyTrades = value; 
        }

        public int GetNextTradeId()
        {
            return Interlocked.Increment(ref _totalCopyTrades);
        }

        public decimal GlobalPnl { get; set; } = 0.0m;
        // Analytics Cache (AccountId -> List<TraderAnalyticsResult>)
        public ConcurrentDictionary<int, List<TraderAnalyticsResult>> TraderAnalyticsCache { get; } = new();

        // Tracks when live orders were placed for stale order cleanup
        // Key: "AccountId_TokenId", Value: (PlacedAt, SourceTraderId)
        public ConcurrentDictionary<string, (DateTime PlacedAt, int SourceTraderId)> PendingOrderTimestamps { get; } = new();

        // High-Performance Global Market Cache to prevent LiteDB bottlenecks during signal processing
        public ConcurrentDictionary<string, MarketData> MarketCache { get; } = new(StringComparer.OrdinalIgnoreCase);

        // Master Trader Position Tracker: Tracks how many shares each master trader holds per token.
        // Key: "{TraderId}_{TokenId}", Value: (Shares, LastUpdated)
        // Used to determine if a SELL signal is a partial sell (ignore) or a full exit (copy).
        public ConcurrentDictionary<string, (decimal Shares, DateTime LastUpdated)> MasterTraderPositions { get; } = new();
    }
}