using System;
using System.Collections.Generic;

namespace ET
{
    public class OnLineComponentAwakeSystem : AwakeSystem<OnLineComponent>
    {
        public override void Awake(OnLineComponent self)
        {
            OnLineComponent.Instance = self;
        }
    }

    public class OnLineComponent : Entity
    {
        public static OnLineComponent Instance { get; set; }
        private Dictionary<long, Session> sessionDic = new Dictionary<long, Session>();

        public void OnLine(long id, Session session)
        {
            sessionDic[id] = session;
        }
        public Session GetSession(long id)
        {
            sessionDic.TryGetValue(id, out Session session);
            return session;
        }
        public bool isOnLine(long id) => sessionDic.ContainsKey(id);
        public void OffLine(long id)
        {
            sessionDic.Remove(id);
        }
        public IEnumerable<Session> GetAll()
        {
            return sessionDic.Values;
        }
    }
}