using System;
using System.Collections.Generic;
using System.Linq;
using System.Security;
using System.ServiceModel;
using System.Text;
using Aitex.Core.RT.DataCenter;
using Aitex.Core.RT.Device;
using Aitex.Core.RT.Event;
using Aitex.Core.RT.Log;
using Aitex.Core.RT.OperationCenter;
using Aitex.Core.RT.SCCore;
using Aitex.Core.Util;
using Aitex.Core.WCF;
using EPInterface;
using EPInterface.Data;
using EPInterface.Datas;

namespace Aitex.RT.Device.Custom
{
    public class EPDDevice : BaseDevice, IDevice
    {
        private PeriodicJob _monitorThead;

        private R_TRIG _triggerConnected = new R_TRIG();
        private R_TRIG _triggerNotConnected = new R_TRIG();

        private int _channel;

        private string _channelStatus;


        //private bool _enableRetry = true;

        private object _lockerTrigger = new object();

        private bool _isEnd = false;

        public bool IsEnd
        {
            get
            {
                return _isEnd;
            }
        }

        public bool IsConnected
        {
            get
            {
                return _triggerConnected.M;
            }
        }

        //private bool _isRecipeStarted;
        //private bool _isStepStarted;

        private int _connectionCounter = 0;

        public EPDDevice(string module, string name) :
            base(module, name, name, name)
        {
        }

        public bool Initialize()
        {
            _channel = SC.GetValue<int>($"{Module}.{Name}.ChannelNumber");

            DATA.Subscribe($"{Module}.{Name}.IsConnected", ()=> IsConnected);
            DATA.Subscribe($"{Module}.{Name}.CurrentChannel", () => _channel);
            DATA.Subscribe($"{Module}.{Name}.ChannelStatus", () => _channelStatus);

            OP.Subscribe($"{Module}.{Name}.SetConfig", (out string reason, int time, object[] args) => {
 
                if (!IsConnected)
                {
                    EV.PostWarningLog(Module, $"{Module} {Name} not connected, can not set config");
                    reason = $"{Module} {Name} not connected, can not set config";
                    return false;
                }

                _isEnd = false;

                StepStart(args[1].ToString(), Convert.ToInt32(args[0]));

                reason = "";
                return true;
            });

            _monitorThead = new PeriodicJob(100, OnTimer, "EPDMonitor", true);

            EPDCallbackClient.Instance.Notify += Instance_Notify;
            EPDCallbackClient.Instance.Trigger += Instance_Trigger;

            return true;
        }

        public void RecipeStart(string recipeName)
        {
            if (!IsConnected)
            {
                LOG.Write("EPD not connected, call recipe start ignored");
                return;
            }
            EV.PostInfoLog(Module, $"{Module} {Name}, Notify EPD recipe {recipeName} start");

            EPDClient.Instance.Service.RecipeStart(_channel, recipeName);
        }

        public void RecipeStop()
        {
            if (!IsConnected)
            {
                LOG.Write("EPD not connected, call recipe start ignored");
                return;
            }

            EV.PostInfoLog(Module, $"{Module} {Name}, Notify EPD recipe stopped");

            EPDClient.Instance.Service.RecipeStop(_channel);
        }

        /*
         * ExposureTime=222;WaveLengthA=2;BinningA=3;WaveLengthB=4;BinningB=6;WaveLengthC=5;BinningC=8;
         * WaveLengthD=7;BinningD=9;Fd=1;PrefilterTime=2;PostfilterTime=3;AlgorithmType=Valley;
         * Criteria=4;DelayTime=5;ValidationTime=6;ValidationValue=7;
         * TimeWindow=8;MinimalTime=9;PostponeTime=10;Control=11;Normalization=12;
         * EnablePostponePercent=True;EnableCriterialPercent=True;
         * TriggerMode=System.Windows.Controls.ComboBoxItem: Event;IsFaultIfNoTrigger=True;
         */
        public void StepStart(string config, int index)
        {
            if (!IsConnected)
            {
                LOG.Write("EPD not connected, call step start ignored");
                return;
            }

            EV.PostInfoLog(Module, $"{Module} {Name}, Notify EPD recipe step {index+1} start");
            EV.PostInfoLog(Module, $"{Module} {Name}, EPD config {config}");

            try
            {
                EPDConfig epd = new EPDConfig();

                epd.nParameterCount = 1;

                string[] items = config.Split(';');
                foreach (var item in items)
                {
                    if (string.IsNullOrEmpty(item))
                        continue;

                    string[] pairs = item.Split('=');
                    if (pairs.Length != 2)
                        continue;

                    switch (pairs[0])
                    {
                        case "ExposureTime":
                            epd.Columns[0].nCCDExposureTime = int.Parse(pairs[1]);
                            break;
                        case "WaveLengthA":
                            epd.Columns[0].nWaveLength[0] = ushort.Parse(pairs[1]);
                            break;
                        case "BinningA":
                            epd.Columns[0].nBinning[0] = ushort.Parse(pairs[1]);
                            break;
                        case "WaveLengthB":
                            epd.Columns[0].nWaveLength[1] = ushort.Parse(pairs[1]);
                            break;
                        case "BinningB":
                            epd.Columns[0].nBinning[1] = ushort.Parse(pairs[1]);
                            break;
                        case "WaveLengthC":
                            epd.Columns[0].nWaveLength[2] = ushort.Parse(pairs[1]);
                            break;
                        case "BinningC":
                            epd.Columns[0].nBinning[2] = ushort.Parse(pairs[1]);
                            break;
                        case "WaveLengthD":
                            epd.Columns[0].nWaveLength[3] = ushort.Parse(pairs[1]);
                            break;
                        case "BinningD":
                            epd.Columns[0].nBinning[3] = ushort.Parse(pairs[1]);
                            break;

                        case "Fd":
                            epd.Columns[0].cFunc = pairs[1];
                            break;
                        case "PrefilterTime":
                            epd.Columns[0].nPreFilterTime = int.Parse(pairs[1]);
                            break;
                        case "PostfilterTime":
                            epd.Columns[0].nPostFilterTime = int.Parse(pairs[1]);
                            break;
                        case "AlgorithmType":
                            epd.Columns[0].algorithmType = MapType(pairs[1]);
                            break;
                        case "Criteria":
                            epd.Columns[0].nCriteria = float.Parse(pairs[1]);
                            break;

                        case "DelayTime":
                            epd.Columns[0].nDelayTime = int.Parse(pairs[1]);
                            break;
                        case "ValidationTime":
                            epd.Columns[0].nValidationTime = int.Parse(pairs[1]);
                            break;
                        case "ValidationValue":
                            epd.Columns[0].nValidationValue = int.Parse(pairs[1]);
                            break;
                        case "TimeWindow":
                            epd.Columns[0].nTimeWindow = int.Parse(pairs[1]);
                            break;
                        case "MinimalTime":
                            epd.Columns[0].nMinimalTime = int.Parse(pairs[1]);
                            break;
                        case "PostponeTime":
                            epd.Columns[0].nPostponeTime = int.Parse(pairs[1]);
                            break;

                        case "Control":
                            epd.Columns[0].bControl = Convert.ToBoolean(pairs[1]);
                            break;
                        case "Normalization":
                            epd.Columns[0].bNormalization = Convert.ToBoolean(pairs[1]);
                            break;
                        case "EnablePostponePercent":
                            epd.Columns[0].bPostponePercent = Convert.ToBoolean(pairs[1]);
                            break;
                        case "EnableCriterialPercent":
                            epd.Columns[0].bCriteriaPercent = Convert.ToBoolean(pairs[1]);
                            break;


                        case "EnableEventTrigger":
                            epd.Columns[0].bEvtTrigger = Convert.ToBoolean(pairs[1]);
                            break;
                    }
                }

                EPDClient.Instance.Service.StartByConfig(_channel, index, $"step{index}", epd);
            }
            catch (Exception ex)
            {
                LOG.Write(ex);
                EV.PostInfoLog(Module, $"{Module} {Name}, Step {index + 1} config values not valid, {ex.Message}");
            }
        }

        private AlgorithmType MapType(string type)
        {
            switch (type)
            {
                case "Unknown": return AlgorithmType.ALG_NONE;
                case "Above_ABS_Value": return AlgorithmType.ALG_RISE_VALUE;
                case "Below_ABS_Value": return AlgorithmType.ALG_FALL_VALUE;
                case "Drop_Percent": return AlgorithmType.ALG_FALL_PERCENT;
                case "Up_Percent": return AlgorithmType.ALG_RISE_PERCENT;
                case "Range_In": return AlgorithmType.ALG_RANGE_IN;
                case "Gradient": return AlgorithmType.ALG_GRADIENT;
                case "Peek": return AlgorithmType.ALG_PEAK;
                case "Valley": return AlgorithmType.ALG_VALLEY;
                case "Min_Drop_Percent": return AlgorithmType.ALG_MIN_FALL_PERCENT;
                case "Min_Up_Percent": return AlgorithmType.ALG_MIN_RISE_PERCENT;
                case "Max_Drop_Percent": return AlgorithmType.ALG_MAX_FALL_PERCENT;
                case "Max_Up_Percent": return AlgorithmType.ALG_MAX_RISE_PERCENT;
                case "Rise_Fall": return AlgorithmType.ALG_RISE_FALL;
                case "Fall_Rise": return AlgorithmType.ALG_FALL_RISE;
            }

            return AlgorithmType.ALG_NONE;
        }

        public void StepStop()
        {
            if (!IsConnected)
            {
                LOG.Write("EPD not connected, call step stop ignored");
                return;
            }

            EV.PostInfoLog(Module, $"{Module} {Name}, Notify EPD recipe step stopped");

            EPDClient.Instance.Service.Stop(_channel);
        }
 

        private bool OnTimer()
        {
            try
            {
                bool retryConnect = false;
                lock (_lockerTrigger)
                {
                    retryConnect = _triggerConnected.M;
                    if (!_triggerConnected.M)
                    {
                        //if (_enableRetry)
                        {
                            retryConnect = true;
                            //_enableRetry = false;
                        }
                    }

                    if (retryConnect)
                    {
                        _connectionCounter++;
                        if (_connectionCounter > 10000)
                            _connectionCounter = 1;

                        _triggerConnected.CLK = _connectionCounter== EPDClient.Instance.Service.Heartbeat(_connectionCounter);

                        _triggerNotConnected.CLK = !_triggerConnected.M;

                        if (_triggerConnected.Q)
                        {
                            EPDCallbackClient.Instance.Init();
                            EV.PostInfoLog(Module, $"{Module} {Name}, EPD Connected");
                        }

                        if (_triggerConnected.M)
                        {
                            _channelStatus = EPDClient.Instance.Service.QueryState(_channel).ToString();
                        }

                        if (_triggerNotConnected.Q)
                        {
                            EPDCallbackClient.Instance.Stop();
                            EV.PostWarningLog(Module, $"{Module} {Name}, EPD disconnected");

                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LOG.Write(ex);
            }

            return true;
        }

        private void Instance_Notify(int channel, string e)
        {
            if (_channel != channel)
                return;

            EV.PostInfoLog(Module, $"{Module} {Name}, EPD Feedback:{e}");
        }

        private void Instance_Trigger(int channel, TriggerEventArgs e)
        {
            if (_channel != channel)
                return;

            _isEnd = true;

            EV.PostInfoLog(Module, $"{Module} {Name}, EPD: {e.Channel}.{e.Name} Triggered");
        }

        public void Monitor()
        {
             
        }

        public void Terminate()
        {
        }

        public void Reset()
        {
            lock (_lockerTrigger)
            {
                if (!_triggerConnected.M)
                {
                    //_enableRetry = true;

                    _triggerConnected.RST = true;
                    _triggerNotConnected.RST = true;
                }


            }
        }
    }

    public class EPDCallbackClient : Singleton<EPDCallbackClient>, IEPDCallback
    {
        public event Action<int, string> Notify;

        public event Action<int, TriggerEventArgs> Trigger;

        private EPDCallbackServiceClient _service;

        public EPDCallbackClient()
        {
            _service = new EPDCallbackServiceClient(this);


        }

        public void Init()
        {
            _service.Register();
        }

        public void Stop()
        {
            _service.UnRegister();
        }

        //public void OnNotify(string channel, string message)
        //{

        //}

        //public void OnTrigger(string channel, string name, long ticket)
        //{

        //}

        public void OnNotify(int channel, EPDEventType EventType, string message)
        {
            Notify?.Invoke(channel, $"{EventType}:{message}");
             
        }

        public void OnTrigger(int channel, string name, long ticket)
        {
            Trigger?.Invoke(channel, new TriggerEventArgs() { Channel = channel, Name = name, Ticket = ticket });
        }
    }

    public class TriggerEventArgs
    {
        public int Channel { get; set; }
        public string Name { get; set; }
        public long Ticket { get; set; }
    }

    public class EPDCallbackServiceClient : DuplexChannelServiceClientWrapper<IEPDCallbackService>
    {
        private Guid _clientId = Guid.Empty;

        public EPDCallbackServiceClient(IEPDCallback callback) : base(new InstanceContext(callback), "Client_IEPDCallbackService", "IEPDCallbackService")
        {
        }

        public void Register()
        {
            if (_clientId != Guid.Empty)
                UnRegister();

            _clientId = Guid.NewGuid();
            Invoke(x => x.Register(_clientId));
        }

        public void UnRegister()
        {
            Invoke(x => x.UnRegister(_clientId));
        }
    }
}