using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using Team.FFFeederService.Interfaces;
using TouchSocket.Core;
using TouchSocket.Sockets;

namespace Team.FFFeederService
{
    public class FeederService : IFeederService
    {
        private readonly Dictionary<Guid, IVoiceCoilMotorFeeder> _feederCollection;
        private readonly object _sync = new object();

        public FeederService()
        {
            _feederCollection = new Dictionary<Guid, IVoiceCoilMotorFeeder>();
        }

        public bool CreateFeeder(Guid id, int feederNo, string name, string ip, int port, FeederBrand feederBrand)
        {
            IVoiceCoilMotorFeeder feeder;
            if (feederBrand == FeederBrand.TEAM)
            {
                var tcpClient = new TouchSocket.Sockets.TcpClient();
                var config = new TouchSocketConfig();
                config.SetRemoteIPHost(new IPHost(IPAddress.Parse(ip), port));
                config.SetTcpDataHandlingAdapter(() => { return new TerminatorPackageAdapter("\r\n"); });       //设置结束符
                config.ConfigurePlugins(a => { a.UseTcpReconnection(); });       ////如需永远尝试连接，tryCount设置为-1即可。
                                                                                 //载入配置
                tcpClient.Setup(config);
                feeder = new TeamFeeder(id, feederNo, name, tcpClient);
            }
            else
            {
                feeder = new AfagFeeder(id, feederNo, name, ip, port);
            }

            feeder.Id = id;

            lock (_sync)
            {
                if (_feederCollection.ContainsKey(id))
                {
                    try
                    {
                        // 移除旧事件并释放
                        var old = _feederCollection[id];
                        old.Dispose();
                    }
                    catch
                    {
                        // 忽略个别释放异常
                    }

                    _feederCollection[id] = feeder;
                }
                else
                {
                    _feederCollection.Add(id, feeder);
                }
            }

            return true;
        }

        public Task<bool> CreateFeederAsync(Guid id, int feederNo, string name, string ip, int port, FeederBrand feederBrand)
        {
            return Task.Run(() => CreateFeeder(id, feederNo, name, ip, port, feederBrand));
        }

        /// <summary>
        /// Feeder断开连接时
        /// </summary>
        private void FeederService_FeederDisconnectedEvent(Guid feederId, ITcpClient client, ClosedEventArgs e)
        {
            // 可在这里转发或记录断开事件
        }

        /// <summary>
        /// Feeder连接上时
        /// </summary>
        private void FeederService_FeederConnectedEvent(Guid feederId, ITcpClient client, ConnectedEventArgs e)
        {
            // 可在这里转发或记录连接事件
        }

        public IVoiceCoilMotorFeeder GetFeeder(Guid id)
        {
            lock (_sync)
            {
                if (_feederCollection.TryGetValue(id, out var feeder)) return feeder;
            }
            return null;
        }

        public Task<IVoiceCoilMotorFeeder> GetFeederAsync(Guid id)
        {
            return Task.Run(() => { return GetFeeder(id); });
        }

        public IVoiceCoilMotorFeeder GetFeederByIndex(int feederNo)
        {
            lock (_sync)
            {
                foreach (var kvp in _feederCollection)
                {
                    var f = kvp.Value;
                    if (f == null) continue;
                    try
                    {
                        if (f.FeederNo == feederNo) return f;
                    }
                    catch
                    {
                        // 忽略访问异常
                    }
                }
            }
            return null;
        }

        public Task<IVoiceCoilMotorFeeder> GetFeederByIndexAsync(int feederNo)
        {
            return Task.Run(() => { return GetFeederByIndex(feederNo); });
        }

        public Task UnRegisterFeederAsync(Guid id)
        {
            return Task.Run(() => UnRegisterFeeder(id));
        }

        public void UnRegisterFeeder(Guid id)
        {
            IVoiceCoilMotorFeeder feeder = null;
            lock (_sync)
            {
                if (_feederCollection.TryGetValue(id, out feeder))
                {
                    _feederCollection.Remove(id);
                }
            }

            if (feeder != null)
            {

                try
                {
                    feeder.Dispose();
                }
                catch
                {
                    // 忽略释放异常
                }
            }
        }

        public Task UnRegisterFeederByIndexAsync(int feederNo)
        {
            return Task.Run(() => UnRegisterFeederByIndex(feederNo));
        }

        public void UnRegisterFeederByIndex(int feederNo)
        {
            Guid foundId = Guid.Empty;
            lock (_sync)
            {
                foreach (var kvp in _feederCollection)
                {
                    try
                    {
                        if (kvp.Value != null && kvp.Value.FeederNo == feederNo)
                        {
                            foundId = kvp.Key;
                            break;
                        }
                    }
                    catch { }
                }
            }

            if (foundId != Guid.Empty)
            {
                UnRegisterFeeder(foundId);
            }
        }

        public IReadOnlyCollection<IVoiceCoilMotorFeeder> GetAllFeeders()
        {
            lock (_sync)
            {
                return _feederCollection.Values.ToList().AsReadOnly();
            }
        }

        public Task<IReadOnlyCollection<IVoiceCoilMotorFeeder>> GetAllFeedersAsync()
        {
            return Task.Run(() => { return GetAllFeeders(); });
        }

        public bool TryGetFeeder(Guid id, out IVoiceCoilMotorFeeder feeder)
        {
            lock (_sync)
            {
                return _feederCollection.TryGetValue(id, out feeder);
            }
        }

        public Task<(bool found, IVoiceCoilMotorFeeder feeder)> TryGetFeederAsync(Guid id)
        {
            return Task.Run(() =>
            {
                IVoiceCoilMotorFeeder feeder;
                bool found;
                lock (_sync)
                {
                    found = _feederCollection.TryGetValue(id, out feeder);
                }
                return (found, feeder);
            });
        }

        public bool ContainsFeeder(Guid id)
        {
            lock (_sync)
            {
                return _feederCollection.ContainsKey(id);
            }
        }

        public Task<bool> ContainsFeederAsync(Guid id)
        {
            return Task.Run(() => { return ContainsFeeder(id); });
        }

        public bool RemoveFeeder(Guid id)
        {
            IVoiceCoilMotorFeeder feeder = null;
            lock (_sync)
            {
                if (_feederCollection.TryGetValue(id, out feeder))
                {
                    _feederCollection.Remove(id);
                }
            }

            if (feeder != null)
            {

                try
                {
                    feeder.Dispose();
                }
                catch
                {
                    // 忽略释放异常
                }
                return true;
            }
            return false;
        }

        public Task<bool> RemoveFeederAsync(Guid id)
        {
            return Task.Run(() => { return RemoveFeeder(id); });
        }

        public void RemoveAllFeeders()
        {
            List<IVoiceCoilMotorFeeder> feeders;
            lock (_sync)
            {
                feeders = _feederCollection.Values.ToList();
                _feederCollection.Clear();
            }

            foreach (var f in feeders)
            {

                try
                {
                    f.Dispose();
                }
                catch { }
            }
        }

        /// <summary>
        /// 更新Feeder编号
        /// </summary>
        /// <param name="id"></param>
        /// <param name="newFeederNo"></param>
        public void UpdateFeederNo(Guid id, int newFeederNo)
        {
            lock (_sync)
            {
                if (_feederCollection.TryGetValue(id, out var feeder))
                {
                    feeder.FeederNo = newFeederNo;
                }
            }

        }
    }
}