using EventBus;
using ICommunication;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;

namespace ActiveMQCommunication
{
    [CommunicationType(false)]
    public class Communication : ICommunication.ICommunication
    {
        public string IP => bus == null ? "" : bus.Host;
        public int Port => bus == null ? 0 : bus.Port;
        public bool IsLan { get; } = false;
        private readonly Dictionary<string, List<IBaseEventData>> _list = new Dictionary<string, List<IBaseEventData>>();
        string GetHash()
        {
            return DateTime.Now.Ticks.ToString();
        }
        EasyMQ.IBus bus;
        public bool IsConnected { get; private set; }
        public bool IsService{ get; private set; }

        public event EventHandler Connected;
        public event EventHandler Disconnected;

        public void Close()
        {
            bus?.Dispose();
            IsConnected = false;
        }

        public void Connect(string ip, int port)
        {
            IsService = false;
            try
            {
                bus = EasyMQ.ActiveHutch.Default.CreateBus(ip, port, new EasyMQ.MessagePackSerializer());
                bus.ConnectionInterruptedListener += (_, _) =>
                    {
                        IsConnected = false;
                        Disconnected?.Invoke(this, EventArgs.Empty);
                    };
                IsConnected = true;
            }
            catch
            {
                IsConnected = false;
            }
            
        }

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

        public IEventData<TData, T>? GetEvent<TData, T>()
        {
            lock (_list)
            {
                string hash = GetHash();
                if (_list.TryGetValue(typeof(MQEventData<TData, T>).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (baseevent.Count == 0) baseevent.Add(new MQEventData<TData,T>(bus, hash, hash));
                    return (IEventData<TData,T>)baseevent.First();
                }
                else
                {
                    MQEventData<TData,T> eventData = new MQEventData<TData,T>(bus, hash, hash);
                    _list.Add(typeof(MQEventData<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(MQAnonymousEventData).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (!baseevent.Where(x => x is MQAnonymousEventData && x.EventName.Contains(eventName)).Any()) baseevent.Add(new MQAnonymousEventData(bus, eventName, GetHash()));
                    return (IAnonymousEventData)baseevent.Where(x => x is MQAnonymousEventData && (x as MQAnonymousEventData)!.EventName.Contains(eventName)).First();
                }
                else
                {
                    MQAnonymousEventData eventData = new MQAnonymousEventData(bus, eventName, GetHash());
                    _list.Add(typeof(MQAnonymousEventData).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(MQAnonymousEventData<T>).FullName!, out List<IBaseEventData>? baseevent))
                {
                    baseevent ??= new List<IBaseEventData>();
                    if (!baseevent.Where(x => x is MQAnonymousEventData<T> && x.EventName.Contains(eventName)).Any()) baseevent.Add(new MQAnonymousEventData<T>(bus, eventName, GetHash()));
                    return (IAnonymousEventData<T>)baseevent.Where(x => x is MQAnonymousEventData<T> && (x as MQAnonymousEventData<T>)!.EventName.Contains(eventName)).First();
                }
                else
                {
                    MQAnonymousEventData<T> eventData = new MQAnonymousEventData<T>(bus, eventName, GetHash());
                    _list.Add(typeof(MQAnonymousEventData<T>).FullName!, new List<IBaseEventData>() { eventData });
                    return eventData;
                }
            }
        }

        public void Start()
        {
        }

        public void StartService(string ip,int port)
        {
            IsService = true;
            try
            {
                bus = EasyMQ.ActiveHutch.Default.CreateBus(ip, port, new EasyMQ.MessagePackSerializer());
                bus.ConnectionInterruptedListener += (_, _) =>
                {
                    IsConnected = false;
                    Disconnected?.Invoke(this, EventArgs.Empty);
                };
                IsConnected = true;
            }
            catch
            {
                IsConnected = false;
            }

        }
    }
}