using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

using Sog;
using ProtoCSStruct;
using Google.Protobuf.Collections;

namespace Friend
{
    /// <summary>
    /// 陌生人列表里的数据是不是和实际这个玩家的数据一致呢，不一致则需要更新
    /// 这个更新比较消耗cpu，所以不要tick的太快，不在线的玩家不处理，反正处理了玩家也看不到
    /// </summary>
    public static class FriendStrangerListDataSyncSvc
    {
        public static void TickSync(long uid, bool notifyClient)
        {
            // todo 后期优化性能时可以考虑不在tick时更新stranger, 让玩家可以自由点头像查看对方信息, 这样查看时更新即可

            //不在线,
            PlayerInfoFriend player = FriendServerUtils.GetPlayerTableOp().GetPlayerInfo(uid);
            if (player == null)
            {
                //tick里面，所以不打日志
                return;
            }

            if (player.IsOnline == false)
            {
                //tick里面，所以不打日志
                return;
            }

            //这个是有可能的，db没有加载成功
            ref FriendCacheInfoStruct info = ref FriendOp.GetFriendInfoByUid(player.UserID);
            if (info.IsNull())
            {
                return;
            }

            //stranger 暂时应该没有什么要更新的
            for (int i = 0; i < info.FriendOpData.StrangerCount; i++)
            {
                bool bChg = false;
                ref DBFriendStrangerOneStruct strangerId = ref FriendOp.GetFriendStrangerByIndex(ref info, i);
                ref DBFriendOneStruct stranger = ref FriendInfoCache.m_cacheStructFriendOne.GetByIndex(strangerId.DBFriendOneID);

                if (FriendUtils.IsPlayerBelongThisServer(stranger.oneFriend.Uid))
                {
                    ref FriendCacheInfoStruct strangerInfo = ref FriendOp.GetFriendInfoByUid(stranger.oneFriend.Uid);
                    if (! strangerInfo.IsNull())
                    {
                        bChg = FriendUtils.CheckAndChangeFriendOne(ref stranger, ref strangerInfo);
                    }
                }
                else
                {
                    ref RemoteFriendOneStruct strangerInfo = ref FriendOp.GetRemoteFriendOneByUid(stranger.oneFriend.Uid);
                    if (! strangerInfo.IsNull())
                    {
                        bChg = FriendUtils.CheckAndChangeFriendOneByRemoteFriend(ref stranger, ref strangerInfo);
                    }
                }


                if (bChg)
                {
                    info.SetNeedSave(true);

                    TraceLog.Trace("FriendStrangerListDataSyncSvc.TickSync uid {0} friend {1} data in list need udpate, sync to new"
                        , uid, stranger.oneFriend.Uid);

                    //if (notifyClient)
                    //{
                    //    TraceLog.Trace("FriendStrangerListDataSyncSvc.TickSync uid {0} friend {1} data updated, notify client"
                    //        , uid, stranger.oneFriend.Uid);

                    //    FriendNotify.NotifyPlayerFriendStrangerListChg(uid, strangerId);
                    //}
                }
            }
        }
    }
}