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

namespace TBF.BenchControl.Elde.Valve
{
	public class Valve : GenericDevices.ValveBase, IValve
	{
		private static readonly ILog log = LogManager.GetLogger(typeof(Valve));
		public override string ToString() { return string.Format("Valve({0})", Cfg.ToString(1)); }

		readonly ValveCfg valveCfg;

		readonly ControlBoardDev controlBoard;

        public ValveCategory Category { get { return valveCfg.Category; } }
        public int Delay { get { return valveCfg.OpenCloseTime; } }
        public bool Inverted { get { return valveCfg.Inverted; } }

		public IValve CoupledTo { get { return coupledTo; } }
		readonly IValve coupledTo;
		
		public bool InvertCouple { get { return valveCfg.InvertCouple; } }
		public int LagOpening { get { return valveCfg.LagOpening; } }
		public int LagClosing { get { return valveCfg.LagClosing; } }

		public readonly ulong Mask;					/// derived from bitPosition in the constructor


		public Valve(ValveCfg cfg, IList<Generic.IComponent> components)
			: base(cfg)
		{
			valveCfg = cfg;

			controlBoard = (ControlBoardDev)TbfComponents.FindComponent(cfg.ParentName, components);
			if (controlBoard == null) throw new Exception("Cannot find " + Name + " parent");

			if (valveCfg.BitPosition < 0 || valveCfg.BitPosition >= 64)
			{
				throw new ArgumentOutOfRangeException("position");
			}
			this.Mask = (((ulong)1) << valveCfg.BitPosition);

			if (cfg.CoupledToName != null)
			{
				coupledTo = (IValve)TbfComponents.FindComponent(cfg.CoupledToName, components);
			}

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

		public bool State
		{
			get { return (controlBoard.Route & Mask) != 0; }
		}
    }
}