using EventBus;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TcpEventBus
{
    public class TcpAnonymousEventData<T> :BaseResultSubscripData, IAnonymousEventData<T>
    {
        private AutoResetEvent _WaitResult = new AutoResetEvent(false);
        [AllowNull]
        private T _Result = default;
        public TcpAnonymousEventData(ISocket socket,string eventName,string hash)
        {
            _Socket = socket;
            EventName = eventName;
            Hash = hash;
        }
        private ISocket _Socket;
        ConcurrentDictionary<Guid, FuncValue<object[], T>> _list = new ConcurrentDictionary<Guid, FuncValue<object[], T>>();
        public override string EventName { get; }

        public string Hash { get; }
        public override void SetResultValue(byte[] result)
        {
            _Result = MsgTool.GetValue<T>(result);
            _WaitResult.Set();
        }
        public override void Subscrip(byte[] data, Properties properties)
        {
            throw new NotSupportedException();
        }
        public override void SubscripData(byte[] data, Properties properties)
        {
            lock (_list)
            {
                var t = MsgTool.GetAnonyDatas(data);
                var temp = _list.Where(x => x.Value.Properties.FilterRule(properties) && x.Value.HasDelegate).Select(x => x.Value).ToList();
                if (temp.Count == 0) return;
                var tempevent = temp.First();
                T result = tempevent.Invoke(this, t, this);
                var bytes = MsgTool.GetMsg(this, result, properties, true).GetBytes();
                _Socket.Send(bytes);
            }
        }
        public void Clear()
        {
            lock (_list)
            {
                _list.Clear();
            }
        }

        public override bool IsAnonymous => true;
        public T Publish(object sender, Properties? properties = null, params object[] data)
        {
            if (data == null || _Socket == null) return default;
            _Socket.Send(this.GetAnonyMsg(data, properties).GetBytes());
            _WaitResult.Reset();
            if (!_WaitResult.WaitOne(_Socket.ReceiveTimeout))
            {
                return default;
            }
            else return _Result;
        }

        public Task<T> PublishAsync(object sender, Properties? properties = null, params object[] data)
        {
            return Task<T>.Run(() =>
            {
                return Publish(sender,  properties,data);
            });
        }

        public List<T> PublishList(object sender, Properties? properties = null, params object[] data)
        {
            throw new NotImplementedException();
        }

        public Task<List<T>> PublishListAsync(object sender, Properties? properties = null, params object[] data)
        {
            throw new NotImplementedException();
        }

        public Guid Subscrip(Func<object, EventArgs<object[]>, T> func, Properties? properties = null)
        {
            lock (_list)
            {
                ArgumentNullException.ThrowIfNull(func);
                properties ??= Properties.Default;
                var temp = new FuncValue<object[], T>(func, properties);
                _list[temp.IntPtr] = temp;
                return temp.IntPtr;
            }
        }

        public Guid SubscripList(Func<object, EventArgs<object[]>, List<T>> func, Properties? properties = null)
        {
            throw new NotImplementedException();
        }

        public void UnSubscrip(Guid guid)
        {
            lock (_list)
            {
                if (guid == Guid.Empty) return;
                _list.TryRemove(guid, out _);
            }
        }
    }
}