using System;
using System.Collections.Generic;
using log4net;
using TBF.BenchControl.GenericDevices;

namespace TBF.BenchControl.Elde.RegulValve
{
	public class ChangeRegulValvePositionOp : IOperation
	{
		private static readonly ILog log = LogManager.GetLogger(typeof(ChangeRegulValvePositionOp));
		public override string ToString()
		{
            return string.Format("ChangeRegulValvePositionOp({0},{1}s)", regulValve.Name, timePulseSec.ToString("F2"));
		}

		/// Set by the constructor
		readonly ControlBoardDev controlBoard;
		readonly RegulValve regulValve;
		readonly int regulValveNr;
        readonly float timePulseSec;

		/// <summary>
        /// Set required water flow.
        /// Events:  FlowSet, FlowTimeOut
		/// </summary>
		/// <param name="controlBoard">Control board device</param>
		/// <param name="regulValve">Regulation valve component</param>
		/// <param name="posLoPct">Lower limit of the position to be achieved</param>
		/// <param name="posHiPct">Upper limit of the position to be achieved</param>
		/// <param name="timeout">Timeout in sec. for setting the flow</param>
		/// <remarks>Only Elde.Valve flow are used, other flow on the lists are ignored</remarks>
        public ChangeRegulValvePositionOp(ControlBoardDev controlBoard, RegulValve regulValve, float timePulseSec)
        {
			if (controlBoard == null) throw new ArgumentNullException("ctrlBoard");
			this.controlBoard = controlBoard;

            this.regulValve = regulValve as RegulValve;
            if (regulValve == null) throw new ArgumentNullException("regValve is null or not Elde");
            this.regulValveNr = this.regulValve.Idx1;

            this.timePulseSec = timePulseSec;
			
			log.Debug(this.ToString());
        }

		/// <summary>Start this operation</summary>
		public void Start()
        {
            float positionPct = controlBoard.RValvePosition(regulValveNr);
            log.WarnFormat("RV#={0}, actPos={1}%", regulValveNr, positionPct.ToString("F1"));

            controlBoard.ValveMove(regulValveNr,
                                   RegulValveMode.PulseWidth,
                                   new float[2] { timePulseSec, timePulseSec },
                                   regulValve.StableTime);
        }

		/// <summary>Run this operation</summary>
		/// <returns>
		///		Event.SetFlowDone
		/// </returns>
		public Event Run()
		{
            float positionPct = controlBoard.RValvePosition(regulValveNr);
            log.WarnFormat("RV#={0}, actPos={1}%", regulValveNr, positionPct.ToString("F1"));

            return Event.PositionReached;
        }

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