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

namespace Friend
{
    public class PlayerTable : IServerDataObj
    {
        // uid
        public Dictionary<long, PlayerInfoFriend> m_playerTable;

	    public List<PlayerInfoFriend> m_playerListForUpdate;

		public PlayerTable()
        {
            m_playerTable = new Dictionary<long, PlayerInfoFriend>();
	        m_playerListForUpdate = new List<PlayerInfoFriend>();
		}

        public override int GetDataType()
        {
            return FriendDataObjType.PlayerTable;
        }
        
    }


    public class FixedList<T>
    {
        private T[] array;
        private int count;
        private int length;

        public FixedList(int num)
        {
            array = new T[num];
            count = 0;
            length = num;
        }

        public int Count => count;
        public int Lenght => length;

        public ref T this[int index]
        {
            get
            {
                if (index < 0 || index >= count)
                {
                    throw new ArgumentOutOfRangeException();
                }

                return ref array[index];
            }
        }

        public void Add(ref T item)
        {
            if (count >= length)
            {
                throw new ArgumentOutOfRangeException();
            }

            array[count] = item;
            count++;
        }

        public bool IsFull()
        {
            return count >= length;
        }

        public void Clear()
        {
            count = 0;
        }
    }

    public class FriendRecommendInfo
    {
        public static int MaxLevel = 10;
        public static int ArrayNum = MaxLevel / 10 + 1;
        public static int NumPerLevel = 500;

        // 每10级一个推荐组, uidHash方便查询是否在组中, uidList记录所有在组里的数据, 方便随机推荐
        public int logicWorldId;
        public HashSet<long>[] uidHash = new HashSet<long>[ArrayNum];
        public FixedList<long>[] uidList = new FixedList<long>[ArrayNum];

        public FriendRecommendInfo(int logicWorldId)
        {
            this.logicWorldId = logicWorldId;
            for (int i = 0; i < ArrayNum; i++)
            {
                uidHash[i] = new HashSet<long>();
                uidList[i] = new FixedList<long>(NumPerLevel);
            }
        }
    }

    public class FriendRecommendTable : IServerDataObj
    {
        public Dictionary<int, FriendRecommendInfo> m_recommendInfoTable;
        public long nextTickSec;
        public FriendRecommendTable()
        {
            m_recommendInfoTable = new Dictionary<int, FriendRecommendInfo>();
        }

        public override int GetDataType()
        {
            return FriendDataObjType.FriendRecommendTable;
        }
    }
}