using Google.Protobuf.WellKnownTypes;
using ServerCommon;
using ServerCore; using ServerBase;
using System.Collections.Concurrent;
using System.Security.Claims;
using Amazon.DynamoDBv2.Model.Internal.MarshallTransformations;
using GameServer;

namespace GameServer
{
    public class EventManager : Singleton<EventManager>
    {
        //private static readonly EventManager _instance = new EventManager();
        //public static EventManager Instance { get { return _instance; } }

        private ConcurrentDictionary<int, MetaAssets.ClaimMetaData> AcceptableClaim = new();
        //private ConcurrentDictionary<int, MetaAssets.ClaimMetaData> NextDeletableClaim = new();

        public EventManager() 
        {
            OnInit();
        }

        private void OnInit()
        {
            DateTime now_dt = DateTimeHelper.Current;
            AcceptableClaim = new();
            

            foreach (MetaAssets.ClaimMetaData claim in MetaData.Instance._ClaimTable)
            {
                if (now_dt > claim.EndTime) continue; // 이미 종료된 이벤트는 무시
                
                if (AcceptableClaim.TryAdd(claim.ClaimId, claim) == false)
                {
                    Log.getLogger().error($"{claim.ClaimId} Add Error");
                    continue;
                }
            }
        }

        public (List<int>, List<int>) claimEventActiveCheckAndGet()
        {
            DateTime now_dt = DateTime.UtcNow;

            List<int> deletables = new List<int>();
            List<int> currents = new List<int>();
            
            foreach (var claime in AcceptableClaim)
            {
                //삭제 가능 이벤트 중에 지난 것들 deletables에 추가
                if (claime.Value.EndTime < now_dt) deletables.Add(claime.Key);
                if (claime.Value.StartTime <= now_dt && now_dt < claime.Value.EndTime) currents.Add(claime.Key);
            }

            foreach (int idx in deletables)
            {
                if (AcceptableClaim.TryRemove(idx, out var claimData) == false) 
                {
                    Log.getLogger().error($"NextAcceptableClaim TryRemove Error idx : idx");
                }
            }
            return (deletables, currents);

        }

        public async Task playerClaimUpdateAndNoti(Player player, List<Int32> deletableClaimIds, List<Int32> currentClaimsIds)
        {
            var server_logic = GameServerApp.getServerLogic();
            var claim_action = player.getEntityAction<ClaimAction>();
            NullReferenceCheckHelper.throwIfNull(claim_action, () => $"claim_action is null !!!");

            var is_load = claim_action.getDataLoad();
            if (is_load == false) return;

            (var result, var acceptables, var deletables) = await claim_action.update();
            if(result.isFail()) return;

            if (acceptables.Count > 0)
            {
                claim_action.send_GS2C_NTF_CLAIM_UPDATE();
            }

        }
    }
}