///
/// Copyright (c) 2020 Sensus Slovensko a.s.
///
using System;
using log4net;
using TBF.Boxes;

namespace TBF.Rig.Modbus.TempMeter.Meret
{
	public class ReadTempOp : IOperation
	{
		private static readonly ILog log = LogManager.GetLogger(typeof(ReadTempOp));
        public override string ToString() { return string.Format("ReadTempOp(.,{0},.)", eventDone); }

		/// Set by the constructor
        readonly TempMeter tempMeter;
		readonly Event eventDone;
        readonly DoubleBox temp;     /// Box for the measured value

		/// <summary>
		/// Events:  TempDone or Error
		/// </summary>
		/// <param name="tempMeter">Pressure meter reference</param>
		/// <param name="temp">Reference to the measured pressure variable, value is in bar</param>
		/// <param name="eventDone">Event to be returned by Run() when completed OK</param>
        public ReadTempOp(TempMeter tempMeter, ref DoubleBox temp, Event eventDone)
        {
			if (tempMeter == null) throw new ArgumentNullException("tempMeter");
            this.tempMeter = tempMeter;
            this.temp = temp;
            this.eventDone = eventDone;

			log.Debug(this.ToString());
        }
        public ReadTempOp(TempMeter pressureMeter, ref DoubleBox temp)
			: this(pressureMeter, ref temp, Event.TempDone)
		{
		}


		/// <summary>Start this operation</summary>
		public void Start()
        {
            if (temp != null) temp.Val = tempMeter.ReadTemperature();
        }

		/// <summary>Run this operation</summary>
		/// <returns>
		///		Event.PressureInDone or Event.PressureOutDone
		/// </returns>
		public Event Run()
		{
            if (temp != null) temp.Val = tempMeter.ReadTemperature();
			return eventDone;
		}

		/// <summary>Stop this operation</summary>
		public void Stop()
		{
		}
	}
}