using System.Collections.Generic;
using System.Linq;


namespace Funique
{
    /// <summary>
    /// Extensions: Player Information <br />
    /// ------------------------------------------------ <br />
    /// 擴充: 用戶資訊 Hash
    /// </summary>
    public static class PlayerInformationExtensions
    {
        public static int RandomID(this Dictionary<string, PlayerInformation> PlayerInfoDic, int memberLimit)
        {
            int LastID = UnityEngine.Random.Range(0, memberLimit);
            int stopNum = 0;
            while (!CheckRepeatID(PlayerInfoDic, LastID) && stopNum < 100)
            {
                stopNum++;
                LastID = UnityEngine.Random.Range(0, memberLimit);
            }
            if (stopNum >= 100)
                LastID = -1;

            return LastID;
        }
        public static string RandomIP(this Dictionary<string, PlayerInformation> PlayerInfoDic, int memberLimit)
        {
            int LastID = UnityEngine.Random.Range(0, memberLimit);
            string IP = "192.168.1." + (LastID + 1).ToString();
            int stopNum = 0;
            while (!CheckRepeatIP(PlayerInfoDic, IP) && stopNum < 100)
            {
                stopNum++;
                LastID = UnityEngine.Random.Range(0, memberLimit);
                IP = "192.168.1." + (LastID + 1).ToString();
            }

            return IP;
        }
        public static bool CheckRepeatID(this Dictionary<string, PlayerInformation> PlayerInfoDic, int ID)
        {
            return PlayerInfoDic.ToList().FindIndex(x => x.Value.ID == ID) != -1;
        }
        public static bool CheckRepeatIP(this Dictionary<string, PlayerInformation> PlayerInfoDic, string IP)
        {
            return PlayerInfoDic.ToList().FindIndex(x => x.Value.IP == IP) != -1;
        }
    }
}