using System;
using Xylem.Common.Hardware.Interfaces.Ports.PortCore.EventArguments;
using Xylem.Common.Hardware.Interfaces.Protocols.ProtocolCore;
using Xylem.Common.Hardware.Interfaces.Protocols.ProtocolCore.EventArguments;
using Xylem.Common.Hardware.WaterMeter.Genesis.DataPackages.EventArguments;

namespace Xylem.Common.Hardware.WaterMeter.Genesis.Protocols.StreamingProtocol
{
    /// <inheritdoc />
    /// <summary>
    ///     Layer between <see cref="StreamingDecoder" /> CRC16CCITT handler and Events
    ///     block  trashy telegrams
    /// </summary>
    public class StreamingProtocol : BaseProtocol
    {

        /// <summary>
        ///     Decode data and hold results
        /// </summary>
        private StreamingDecoder _streamingDecode;
        private readonly Boolean _ignoreCorruptedData;

        /// <inheritdoc />
        public override event EventHandler<BaseDataEventArgs> OnRecordIsDecoded;


        /// <inheritdoc />
        protected override void DecodeRecord(IPortDataEventArgs dataArgs)
        {
            var data = (String)dataArgs.GetData();

            //Data decoding
            _streamingDecode = new StreamingDecoder(_ignoreCorruptedData);
            _streamingDecode.DecodeMsg(data);

            //Event for new data 
            if (_streamingDecode.DataFlowTest != null)
            {
                _streamingDecode.DataFlowTest.SyncMarkRecord = dataArgs.GetSyncMarkRecord();
                _streamingDecode.DataFlowTest.ReceivedTime = dataArgs.GetReceivedTime();

                if (_streamingDecode.DataFlowTest.IsValid)
                {
                    OnRecordIsDecoded?.Invoke(this,
                        new FlowDataEventArgs { NewData = _streamingDecode.DataFlowTest, RawData = data });
                }
                else if (!_ignoreCorruptedData)
                {
                    OnRecordIsDecoded?.Invoke(this,
                        new FlowDataEventArgs { NewData = _streamingDecode.DataFlowTest, RawData = data });
                }

            }
            else if (_streamingDecode.DataCalib != null)
            {
                _streamingDecode.DataCalib.SyncMarkRecord = dataArgs.GetSyncMarkRecord();
                _streamingDecode.DataCalib.ReceivedTime = dataArgs.GetReceivedTime();
                if (_streamingDecode.DataCalib.IsValid)
                {
                    OnRecordIsDecoded?.Invoke(this, new CalibDataEventArgs
                    {
                        CalibChl = _streamingDecode.DataCalib,
                        RawData = data
                    });
                }
                else if (!_ignoreCorruptedData)
                {
                    OnRecordIsDecoded?.Invoke(this, new CalibDataEventArgs
                    {
                        CalibChl = _streamingDecode.DataCalib,
                        RawData = data
                    });
                }

            }
            else if (_streamingDecode.DataBendDetectTest != null)
            {
                _streamingDecode.DataBendDetectTest.SyncMarkRecord = dataArgs.GetSyncMarkRecord();
                _streamingDecode.DataBendDetectTest.ReceivedTime = dataArgs.GetReceivedTime();
                if (_streamingDecode.DataBendDetectTest.IsValid)
                {
                    OnRecordIsDecoded?.Invoke(this, new BendDetectDataEventArgs
                    {
                        NewData = _streamingDecode.DataBendDetectTest,
                        RawData = data
                    });
                }
                else if (!_ignoreCorruptedData)
                {
                    OnRecordIsDecoded?.Invoke(this, new BendDetectDataEventArgs
                    {
                        NewData = _streamingDecode.DataBendDetectTest,
                        RawData = data
                    });
                }
            }

            //toDo: handle trashy telegrams
        }

        /// <inheritdoc />
        public StreamingProtocol(String ident, Boolean ignoreCorruptedData = true) : base(ident)
        {
            _ignoreCorruptedData = ignoreCorruptedData;
        }
    }
}