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

namespace TcpEventBus
{
    public sealed class TcpEventBus : IEventBroker
    {
        public event EventHandler Connected;

        public event EventHandler Disconnected;
        string GetHash()
        {
            return DateTime.Now.Ticks.ToString() ;
        }
        private readonly Dictionary<string, List<IBaseEventData>> _list = new Dictionary<string, List<IBaseEventData>>();
        [AllowNull]
        private ISocket socket;
        private TcpEventBus(ISocket tcp)
        {
            if (tcp == null) throw new ArgumentNullException(nameof(tcp));
            socket = tcp;
            tcp.OnData = (data)=> Events_DataReceived(data);
            tcp.OnConnected = () => Connected?.Invoke(this, EventArgs.Empty);
            tcp.OnDisconnected+= () =>
            {
                //_list.Clear();
                Disconnected?.Invoke(this, EventArgs.Empty);
            };
            tcp.Start();
        }
        public void Close()
        {
            socket?.Disconnect();
        }

        private void Events_DataReceived(ArraySegment<byte> e)
        {
            try
            {
                var msg = MessagePack.MessagePackSerializer.Deserialize<DataMsg>(e);
                if (msg == null) return;
                if(_list.TryGetValue(msg.EventType,out var baseevent))
                {
                    if (baseevent == null || baseevent.Count == 0) return;

                    var subs = baseevent.Cast<ISubscripData>();
                    if (subs.First().IsAnonymous)
                    {
                        if (msg.IsResultMsg)
                        {
                            ((BaseResultSubscripData)subs.First(x => x.EventName == msg.EventName)).SetResultValue(msg.Data);
                        }
                        else
                        {
                            if (subs.First(x => x.EventName == msg.EventName) is BaseResultSubscripData sub)
                            {
                                sub.SubscripData(msg.Data, Properties.GetProperties(msg.Properties));
                            }
                            else subs.First(x => x.EventName == msg.EventName).Subscrip(msg.Data, Properties.GetProperties(msg.Properties));
                        }
                    }
                    else
                    {
                        if (msg.IsResultMsg)
                        {
                            ((BaseResultSubscripData)subs.First()).SetResultValue(msg.Data);
                        }
                        else
                        {
                            if (subs.First() is BaseResultSubscripData sub)
                            {
                                sub.SubscripData(msg.Data, Properties.GetProperties(msg.Properties));
                            }
                            else subs.First().Subscrip(msg.Data, Properties.GetProperties(msg.Properties));
                        }
                    }
                }
                else
                {

                }
            }
            catch
            {

            }
        }

        public void Start() => socket.Start();
        static TcpEventBus()
        {

        }
        public string IP { get; private set; }
        public int Port { get; private set; }
        public bool IsConnected => socket.IsConnect;
        public bool IsService => socket.IsService;
        public static TcpEventBus CreateService(string ip, int port,int timeout=1000)
        {
            //return new TcpEventBus(ISocket.SocketTool.CreateService(port, timeout))
            //{
            //    IP = ip,
            //    Port = port,
            //};
            return new TcpEventBus(new Server(ip, port, timeout))
            {
                IP = ip,
                Port = port,
            };
        }
        public static TcpEventBus CreateClient(string ip,int port,int timeout=1000)
        {
            //return new TcpEventBus(ISocket.SocketTool.CreateClient(ip, port, timeout))
            //{
            //    IP = ip,
            //    Port = port,
            //};
            return new TcpEventBus(new Client(ip, port, timeout))
            {
                IP = ip,
                Port = port,
            };
        }
        public IEventData<TData> GetEvent<TData>()
        {
            lock (_list)
            {
                string hash = GetHash();
                if (_list.TryGetValue(typeof(TcpEventData<TData>).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (baseevent.Count == 0) baseevent.Add(new TcpEventData<TData>(socket,hash, hash));
                    return (IEventData<TData>)baseevent.First();
                }
                else
                {
                    TcpEventData<TData> eventData = new TcpEventData<TData>(socket,hash,hash);
                    _list.Add(typeof(TcpEventData<TData>).FullName!, new List<IBaseEventData>() { eventData });
                    return eventData;
                }
            }
        }

        public IEventData<TData, T> GetEvent<TData, T>()
        {
            lock (_list)
            {
                string hash = GetHash();
                if (_list.TryGetValue(typeof(TcpEventData<TData, T>).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();   
                    if (baseevent.Count == 0) baseevent.Add(new TcpEventData<TData,T>(socket, hash, hash));
                    return (IEventData<TData,T>)baseevent.First();
                }
                else
                {
                    TcpEventData<TData,T> eventData = new TcpEventData<TData,T>(socket, hash, hash);
                    _list.Add(typeof(TcpEventData<TData, T>).FullName!, new List<IBaseEventData>() { eventData });
                    return eventData;
                }
            }
        }

        public IAnonymousEventData GetEvent(string eventName)
        {
            lock (_list)
            {
                string hash = GetHash();
                ArgumentNullException.ThrowIfNullOrEmpty(eventName);
                if (_list.TryGetValue(typeof(TcpAnonymousEventData).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (!baseevent.Where(x => x is TcpAnonymousEventData && x.EventName.Equals(eventName)).Any()) baseevent.Add(new TcpAnonymousEventData(socket, eventName, GetHash()));
                    return (IAnonymousEventData)baseevent.Where(x => x is TcpAnonymousEventData && (x as TcpAnonymousEventData)!.EventName.Equals(eventName)).First();
                }
                else
                {
                    TcpAnonymousEventData eventData = new TcpAnonymousEventData(socket, eventName, GetHash());
                    _list.Add(typeof(TcpAnonymousEventData).FullName!, new List<IBaseEventData>() { eventData });
                    return eventData;
                }
            }
        }

        public IAnonymousEventData<T> GetEvent<T>(string eventName)
        {
            lock (_list)
            {
                string hash = GetHash();
                ArgumentNullException.ThrowIfNullOrEmpty(eventName);
                if (_list.TryGetValue(typeof(TcpAnonymousEventData<T>).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (!baseevent.Where(x => x is TcpAnonymousEventData<T> && x.EventName.Equals(eventName)).Any()) baseevent.Add(new TcpAnonymousEventData<T>(socket, eventName, GetHash()));
                    return (IAnonymousEventData<T>)baseevent.Where(x => x is TcpAnonymousEventData<T> && (x as TcpAnonymousEventData<T>)!.EventName.Equals(eventName)).First();
                }
                else
                {
                    TcpAnonymousEventData<T> eventData = new TcpAnonymousEventData<T>(socket, eventName, GetHash());
                    _list.Add(typeof(TcpAnonymousEventData<T>).FullName!, new List<IBaseEventData>() { eventData });
                    return eventData;
                }
            }
        }
    }
}