using System;
using System.Collections.Generic;
using log4net;

namespace TBF.BenchControl.Elde.FlowMeter
{
	public class FlowMeter : Generic.IComponent, GenericDevices.IFlowMeter
	{
		/// <summary>
		/// Info: StartMassMeasurement() and "Balance response = .., Mass = ..."
		/// Warn: Start measurement when busy is true
		/// </summary>
		private static readonly ILog log = LogManager.GetLogger(typeof(FlowMeter));
        public override string ToString()
		{
			return string.Format("FlowMeter({0},{1})", Name, Position);
		}

		public static void ResetStaticProperties() { }

		FlowMeterCfg flowMeterCfg;
		public Generic.IComponentCfg Cfg { get { return flowMeterCfg; } }

		public string Name { get { return flowMeterCfg.Name; } }
		public IList<Entities.MeasurementCorrection> Corrections { get { return flowMeterCfg.Corrections; } }

		public readonly ControlBoardDev ControlBoard;

		public readonly int Position;		/// 1..4

        readonly float nominalFlow;
        public float NominalFlow { get { return nominalFlow; } }

		public FlowMeter(FlowMeterCfg cfg, IList<Generic.IComponent> components)
		{
			if (cfg == null) throw new ArgumentNullException("cfg");
			this.flowMeterCfg = cfg;

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

			Position = cfg.Position;

            nominalFlow = cfg.NominalFlow;
            ControlBoard.EtCalib[Position] = NominalFlow;

			/// Prepare data for SendCalibData() control board component method

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

		/// <summary>
		/// Events:  FlowDone, Error
		/// </summary>
		/// <param name="flow">Reference to a variable for the flow in Bar</param>
		/// <returns>ReadFlowOp instance reference casted to IOperaton</returns>
        public IOperation ReadFlowOp(ref FloatBox flow)
		{
			return new ReadFlowOp(this, ref flow);
		}

		/// <summary>
		/// Events:  flowDone, Error
		/// </summary>
		/// <param name="flow">Reference to a variable for the flow in Bar</param>
		/// <param name="flowDone">Event returned when measurement done</param>
		/// <returns>ReadFlowOp instance reference casted to IOperaton</returns>
        public IOperation ReadFlowOp(ref FloatBox flow, Event flowDone)
		{
			return new ReadFlowOp(this, ref flow, flowDone);
		}
	}
}