///
/// Copyright (c) 2013-2016 Sensus Metering Systems
///
using System;
using System.Collections.Generic;
using log4net;
using TBF.BenchControl.Generic;
using TBF.Boxes;

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


		const int COAX_IDX = 7;		/// COAX has always Idx1 = 7


		public readonly RegulValveCfg RegulValveCfg;

		IDictionary<float, float> dict;
		public IDictionary<float, float> Dict { get { return dict; } }

		public readonly ControlBoardDev ControlBoard;

        public ValveCategory Category { get { return RegulValveCfg.Category; } }
        public int Idx1 { get { return RegulValveCfg.Idx1; } }                      /// 1..7
        public int DacValueClosed { get { return RegulValveCfg.AdcValueClosed; } }	/// 0..1023														
        public int DacValueOpen { get { return RegulValveCfg.AdcValueOpen; } }		/// 0..1023
        public int StableTime { get { return RegulValveCfg.StableTime; } }          /// 0=200ms, step=50ms, max. 1500ms (max.26)
        public int FlowStableSec { get { return RegulValveCfg.FlowStableSec; } }    /// 0..60 sec
		///
		public bool IsCoax { get { return (Idx1 == COAX_IDX); } }
		/// 
        public float Position { get { return ControlBoard.RValvePosition(Idx1); } }


		#region Configuration Change Handling

		public static void OnCfgChange(object sender, CfgChangeArgs args)
		{
			if (CfgChangeHandler == null) return;
			try { CfgChangeHandler(sender, args); }
			catch (Exception e) { log.Error("CfgChangeHandler(...) failed", e); }
		}

		public static event EventHandler<CfgChangeArgs> CfgChangeHandler;

		public override void StartChangeHandler()
		{
			CfgChangeHandler += delegate(object sender, CfgChangeArgs args)
			{
				RegulValveCfg tmpcfg = args.Cfg as RegulValveCfg;
				if (tmpcfg != null && tmpcfg.Name.Equals(Name))
				{
					if (args.Command == CfgChangeCmd.CfgChange)
					{
						RegulValveCfg.StableTimeMs = tmpcfg.StableTimeMs;
						RegulValveCfg.FlowStableSec = tmpcfg.FlowStableSec;
					}
					else if (args.Command == CfgChangeCmd.RVOpenStep)
					{
						ControlBoard.ValveMove(Idx1, RegulValveMode.PulseWidth, new float[2] { 2.0f, 2.0f }, StableTime);
						// TODO: avoid conflicts
						// TOTEST
					}
					else if (args.Command == CfgChangeCmd.RVCloseStep)
					{
						ControlBoard.ValveMove(Idx1, RegulValveMode.PulseWidth, new float[2] { -2.0f, -2.0f }, StableTime);
						// TODO: avoid conflicts
						// TOTEST
					}
					else if (args.Command == CfgChangeCmd.GetAdc1 || args.Command == CfgChangeCmd.GetAdc2)
					{
						int adc = (int)ControlBoard.AnalogInputRaw(Idx1 - 1, 0);
						RegulValveCfgCtrl.OnCmdResponse(this, new CmdResponseArgs(args.Command, Idx1, adc));
					}
				}
			};
		}

		#endregion Configuration Change Handling


		public RegulValve()
		{
		}

		public RegulValve(Generic.IComponentCfg cfg, IList<Generic.IComponent> components)
            : base(cfg)
		{
			RegulValveCfg = cfg as RegulValveCfg;

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

			this.dict = new Dictionary<float, float>();

			if (Idx1 != COAX_IDX)
			{
				this.ControlBoard.RegValveCalib[Idx1 - 1, 0] = (uint)DacValueClosed;
				this.ControlBoard.RegValveCalib[Idx1 - 1, 1] = (uint)DacValueOpen;
			}

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

        public void Initialize() { }
        public void RunDeviceBefore()
        {
            int adc = (int)ControlBoard.AnalogInputRaw(Idx1 - 1, 0);
            Handlers.OnAdcChanged(this, new CmdResponseArgs(CfgChangeCmd.GetAdc, Idx1, adc));
        }
        public void RunDeviceAfter() { }
        public void StopDevice() { }

        /// <summary>
        /// Operation to set the water flow within tolerances
        /// Events: Event.None, Event.FlowReached, Event.FlowTimeOut
        /// </summary>
        /// <param name="flowMeter">Flowmeter component</param>
        /// <param name="requiredFlowLo">Lower limit of the required flow [m3/h]</param>
        /// <param name="requiredFlowHi">Higher limit of the required flow [m3/h]</param>
		/// <param name="pidCoef">PID coefficient (float)</param>
		/// <param name="measuredFlow">Measured flow [m3/h]</param>
        /// <param name="timeout">Timeout in [s]</param>
        /// <returns>SetFlowOp instance</returns>
		public IOperation SetFlowOp(GenericDevices.IFlowMeter flowMeter, float requiredFlowLo, float requiredFlowHi, float pidCoef, DoubleBox measuredFlow, int timeout)
        {
			return new SetFlowOp(ControlBoard, this, flowMeter, requiredFlowLo, requiredFlowHi, pidCoef, measuredFlow, timeout);
        }

        /// <summary>
        /// Operation to set the water flow within tolerances. Leave the measurement running.
        /// Events: Event.None, Event.FlowReached, Event.FlowTimeOut
        /// </summary>
        /// <param name="flowMeter">Flowmeter component</param>
        /// <param name="requiredFlowLo">Lower limit of the required flow [m3/h]</param>
        /// <param name="requiredFlowHi">Higher limit of the required flow [m3/h]</param>
        /// <param name="measuredFlow">Measured flow [m3/h]</param>
        /// <param name="timeout">Timeout in [s]</param>
        /// <returns>SetFlowOp instance</returns>
		public IOperation SetFlowAndMeasureOp(GenericDevices.IFlowMeter flowMeter, float requiredFlowLo, float requiredFlowHi, float pidCoef, DoubleBox measuredFlow, int timeout, float filterConstant)
        {
			return new SetFlowOp(ControlBoard, this, flowMeter, requiredFlowLo, requiredFlowHi, pidCoef, measuredFlow, timeout, true);
        }

        /// <summary>
        /// Operation to set the regulation valve to a required position
        /// Events: Event.None
        /// </summary>
        /// <param name="flowLo">Lower limit of the required valve position in [%]</param>
        /// <param name="flowLo">Higher limit of the required valve position in [%]</param>
        /// <returns>SetPositionOp instance</returns>
        public IOperation SetRegulValvePositionOp(float pctLo, float pctHi, int timeoutMs)
        {
            return new SetRegulValvePositionOp(ControlBoard, this, pctLo, pctHi, timeoutMs);
        }

        public IOperation ChangeRegulValvePositionOp(float timePulseSec)
        {
            return new ChangeRegulValvePositionOp(ControlBoard, this, timePulseSec);
        }
    }
}