using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;

namespace BITKit.WorldNode
{
    /// <summary>
    /// 世界节点服务,所有动态世界节点通过此接口注册
    /// </summary>
    public interface IWorldNodeService
    {
        public IReadOnlyDictionary<int, IWorldNode> WorldNodes { get; }
        public void RegisterNode(IWorldNode node);
        public event Action<IWorldNode> OnNodeRegistered;
    }
    /// <summary>
    /// 世界节点默认实现
    /// </summary>
    [Serializable]
    public class WorldNodeService : IWorldNodeService,IDisposable
    {
        public static event Action<IWorldNode> OnNodeRegistered;
        IReadOnlyDictionary<int, IWorldNode> IWorldNodeService.WorldNodes => WorldNodes;
        private static readonly ConcurrentDictionary<int, IWorldNode> WorldNodes = new();
        public void RegisterNode(IWorldNode node)
        {
            OnNodeRegistered?.Invoke(node);
            WorldNodes.TryAdd(node.Id, node);
        }
        event Action<IWorldNode> IWorldNodeService.OnNodeRegistered
        {
            add=>OnNodeRegistered+=value;
            remove=>OnNodeRegistered-=value;
        }
        public void Dispose()
        {
            WorldNodes.Clear();
        }
    }
}