///
/// Copyright (c) 2017-2019 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using log4net;
using Config.Entities;
using TBF.Boxes;

namespace TBF.Rig.Elde.FlowMeterTriplet
{
	public class FlowMeter : ComponentBase, GenericDevices.IFlowMeter
	{
		private static readonly ILog log = LogManager.GetLogger(typeof(FlowMeter));
        public override string ToString() { return string.Format("{0}({1})", ClassName, Cfg.ToString(-1)); }

		readonly FlowMeterCfg flowMeterCfg;
        readonly ControlBoardDev controlBoard;

        public int Idx1 { get { return flowMeterCfg.Idx1; } }
        public double NominalFlow { get { return flowMeterCfg.NominalFlow; } }
        public double LtrPerPulse { get { return flowMeterCfg.NominalFlow / 21600.0; } }    /// Nominal frequency is 6000 Hz

        public double LtrPerPulseCorrected(double flow, int rangeIx)
        {
            /// Apply correction
            double correctedFlow = MeasurementCorrection.CorrectedValue(flow, Corrections);
            return (LtrPerPulse * correctedFlow / flow);
        }


		public FlowMeter() { }

		public FlowMeter(Generic.IComponentCfg cfg, IList<Generic.IComponent> components)
			: base(cfg)
		{
			flowMeterCfg = cfg as FlowMeterCfg;

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

			/// Prepare data for SendCalibData() control board component method
			if (Idx1 >= controlBoard.EtCalib.Length) throw new Exception("Flowmeter " + Name + " parameter 'Idx1' is out of range");
			controlBoard.EtCalib[Idx1] = (float)flowMeterCfg.NominalFlow;
		}
        
        public override void Initialize()
        {
            log.FatalFormat("{0} initialized: {1}", Name, this);
        }


        public double ReadFlow()      { return controlBoard.ReferenceFlow; }
        public double ReadFrequency() { return controlBoard.ReferenceFreq; }

		/// <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 DoubleBox flow)
		{
			return new ReadFlowOp(this, controlBoard, 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 DoubleBox flow, Event flowDone)
		{
			return new ReadFlowOp(this, controlBoard, ref flow, flowDone);
		}
	}
}