using Sog;
using System.Collections.Generic;
using System.Linq;
using ProtoCSStruct;

namespace World
{
	//先放在World,之后看看需求是否移动到Friend
	public class RoleCacheInfoSvc : IServerDataObj
    {
		//Key:playerUid , value:m_RoleCacheStructList pos index
		public  Dictionary<long, long> m_selfIDMap;
        private static StructMemoryCache<OneRoleCacheStruct> m_RoleCacheStructList;
      
        public RoleCacheInfoSvc()
        {
            m_selfIDMap = new Dictionary<long, long>();
	        m_RoleCacheStructList = new StructMemoryCache<OneRoleCacheStruct>((int)RoleCacheDef.MaxRoleCacheCount);           
        }

	    public bool RemoveOneRoleCacheByUid(long playerUid)
	    {
		    if (m_selfIDMap.TryGetValue(playerUid, out long pos))
		    {
			    m_selfIDMap.Remove(playerUid);
			    m_RoleCacheStructList.Free(pos);
			    return true;
		    }
		    return false;
	    }

		/// <summary>
		/// 增加一个空的,具体数据设置自己接返回值然后处理
		/// </summary>
		/// <param name="playerUid"></param>
		/// <returns></returns>
	    public ref OneRoleCacheStruct AddOneRoleCacheByUid(long playerUid)
	    {
		    if (m_selfIDMap.ContainsKey(playerUid))
		    {
			    return ref GetOneRoleCacheStructByUid(playerUid);
		    }
			//满了的话,默认移除掉m_selfIDMap的第一个
			if (m_RoleCacheStructList.m_freeQueue.Count == 0)
			{
				RemoveOneRoleCacheByUid(m_selfIDMap.FirstOrDefault().Key);
			}
			//移除失败的话,再尝试移除最后一个
		    if (m_RoleCacheStructList.m_freeQueue.Count == 0)
		    {
			    RemoveOneRoleCacheByUid(m_selfIDMap.LastOrDefault().Key);
		    }
			//还是不行直接返回吧
		    if (m_RoleCacheStructList.m_freeQueue.Count == 0)
		    {
			    return ref m_RoleCacheStructList.GetByIndex(0); ;
		    }
			m_selfIDMap.Add(playerUid, m_RoleCacheStructList.m_freeQueue.Peek());
			ref var one = ref m_RoleCacheStructList.Malloc();
		    one.LastAccessTime = 0;
			one.showInfo.Clear();
			one.sysData.Clear();
			return ref one;		  
	    }

	    public ref OneRoleCacheStruct GetOneRoleCacheStructByUid(long playerUid)
	    {
			if (m_selfIDMap.TryGetValue(playerUid, out long pos))
			{				
				return ref m_RoleCacheStructList.GetByIndex(pos);
			}
		    return ref m_RoleCacheStructList.GetByIndex(0);
		}

	    public bool RoleCacheIsFull()
	    {
			//还剩11个空间的时候就认为满了,可以删除一些
		    if (m_selfIDMap.Count + 11 >= (int) RoleCacheDef.MaxRoleCacheCount)
		    {
			    return true;
		    }
		    return false;
	    }

		public override int GetDataType()
        {
            return WorldDataObjType.RoleCacheInfo;
        }
    }
}