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

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

namespace Friend
{
    /// <summary>
    /// 好友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 FriendListDataSyncSvc
    {
        public static void TickSync(long uid, bool notifyClient)
        {
            PlayerInfoFriend player = FriendServerUtils.GetPlayerTableOp().GetPlayerInfo(uid);
            if (player == null || ! player.IsOnline)
            {
                return;
            }

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

            for (int i = 0; i < info.FriendList.iCount; i++)
            {
                bool bChg = false;
                ref DBFriendOneStruct friend = ref FriendOp.GetFriendOneByIndex(ref info, i);

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

                if (bChg)
                {
                    TraceLog.Trace("FriendListDataSyncSvc.TickSync uid {0} friend {1} data chg", uid, friend.oneFriend.Uid);

                    info.SetNeedSave(true);

                    if (notifyClient)
                    {
                        FriendNotify.NotifyPlayerFriendListChg(player, ref friend);
                    }
                }
            }
        }
    }
}