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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Integration.Operation;
using Tango.Telemetry.Telemetries;

namespace Tango.Telemetry.Sources
{
    public class TelemetryWireStreamingSource : ITelemetryStreamingSource
    {
        private IMachineOperator _machineOperator;

        public bool IsStarted { get; private set; }
        public string Name { get; } = "Wire Streaming";
        public bool RequiresTelemetryDuplicationTracking { get; }

        public event EventHandler<TelemetryAvailableEventArgs> TelemetryAvailable;

        public TelemetryWireStreamingSource(IMachineOperator machineOperator)
        {
            _machineOperator = machineOperator;
        }

        public void Start()
        {
            if (!IsStarted)
            {
                IsStarted = true;
                _machineOperator.TelemetryWireAvailable += MachineOperator_TelemetryWireAvailable;
            }
        }

        public void Stop()
        {
            if (IsStarted)
            {
                IsStarted = false;
                _machineOperator.TelemetryWireAvailable -= MachineOperator_TelemetryWireAvailable;
            }
        }

        private void MachineOperator_TelemetryWireAvailable(object sender, PMR.Diagnostics.StartTelemetryWireResponse e)
        {
            if (IsStarted)
            {
                TelemetryAvailable?.Invoke(this, new TelemetryAvailableEventArgs()
                {
                    DisableDeliveryRetries = true,
                    TelemetryObject = new TelemetryWire()
                    {
                        ID = String.Empty,
                        Time = DateTime.UtcNow,
                        Name = e.Name,
                        Value = e.Value
                    }
                });
            }
        }

        public void Dispose()
        {
            Stop();
        }
    }
}