///
/// Copyright (c) 2013-2015 Sensus Metering Systems
///
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using TBF.BenchControl;
using TBF.Boxes;
using TBF.Resources;
using TBF.UiBridge;

namespace TBF.BenchControl.TestMethods.FlyingStart
{
	public class FlyingStartSeq : Sequences.SequenceBase
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(FlyingStartSeq));

		/// <summary>
		/// Flying start mass collection method sequence
		/// </summary>
		/// <param name="test">Test entity</param>
		/// <returns>
		///		Event.Done . . . . . . . OK
		///		Event.UiCmdStop  . . . . Stopped by the user using the on-screen button STOP
		///		Event.OpArgumentError  . Target flow is out of range
		///		Event.Error  . . . . . . Unspecified error
		/// </returns>
		public IList<Event> Execute(Config.Entities.Test test)
		{
			Elde.ControlBoardDev cBrd = StateMachine.ControlBoard;

            IList<Event> e = new List<Event>();             /// Events from currently running operations
            Event retVal = Event.Done;
            checkUiOp = new Operations.CheckUIOp(true);     /// Runs in more then one state

            ltrPerRefPulse = outPath.FlowMeter.LtrPerPulse;         /// [ltr/pulse], nominal flow in [m3/h]

            /// Notes:
            ///   float timeHr = volumeLtr / (1000.0f * targetFlow);
            ///   float timeSec = 3600.0f * timeHr;
            ///   int refPulses = (int)(timeSec * (2000.0f * targetFlow / pOut.FlowMeter.NominalFlow));
            int totalPulses = (int)(test.Volume / ltrPerRefPulse + 0.5f);

            processDataLoggingOp = new TBF.BenchControl.Operations.ProcessDataLoggingOp(processDataLogger, this);
            
            int repetitionNr = 1;                 /// First test: repetitionNr=1				

			//====================================
			// Transition or SetRoute - Start
			//====================================
			switch (Transition(transitionBefore, TransitionContext.BeforeTest))
			{
				case Event.Error:		{ retVal = Event.Error;		goto stopTest; }
				case Event.UiCmdStop:	{ retVal = Event.UiCmdStop; goto stopTest; }
			}

		//====================================
        loop:
			/// Start the test, initialize test results
			Bridge.OnTestSelected(this, new TestSelectedEventArgs(test, repetitionNr, inPath, benchPath, outPath, sensPath, totalPulses));
			Config.Entities.TestResult tstRslt = new Config.Entities.TestResult(test, repetitionNr, Config.Entities.MetersKind.Single);

            //------------------------------------------------
            Bridge.OnActivity(this, Strings.Setting_the_flow);
            //------------------------------------------------
			int flowSetTime0 = StateMachine.Time;
			float estFlowSetTime = 10.0f;

			if (inPath.Pump is GenericDevices.IPumpFM) (inPath.Pump as GenericDevices.IPumpFM).TurnOn(test.PumpPower);
			State.Create("FlyingStart : Starting the pump")
                .AddOperation(checkUiOp)
				.AddOperation(cBrd.SetValvesOp(inPath.Pump, null))
                .EnterState();
            do
            {
                e = StateMachine.WaitRunDevsRunOps();

                int flowSetTime = StateMachine.Time - flowSetTime0;
				float progress = Formulas.TestProgress(flowSetTime, estFlowSetTime, test.TstTime);
                Bridge.OnTestProgress(this, GetTestProgressData(test, tstRslt, false, cBrd, flowSetTime, progress));

				if (e.Contains(Event.UiCmdStop)) { retVal = Event.UiCmdStop; goto stopTest; }
            }
            while (!e.Contains(Event.ValvesSet));

            //--------------------------------
			State.Create("FlyingStart : Setting the flow")
				.AddOperation(checkUiOp)
				.AddOperation(outPath.RegulValve.SetFlowOp(outPath.FlowMeter, test.Qfrom, test.Qto, outPath.PidCoef, RefFlow, 600))    /// timeout = 10 min.
				.EnterState();
			do
			{
				e = StateMachine.WaitRunDevsRunOps();

                int flowSetTime = StateMachine.Time - flowSetTime0;
				float progress = Formulas.TestProgress(flowSetTime, estFlowSetTime, test.TstTime);
                Bridge.OnTestProgress(this, GetTestProgressData(test, tstRslt, false, cBrd, flowSetTime, progress));

				if (e.Contains(Event.OpArgumentError))	 { retVal = Event.OpArgumentError; goto stopTest; }
				if (e.Contains(Event.UiCmdStop))		 { retVal = Event.UiCmdStop; goto stopTest; }
				if (e.Contains(Event.RegulValveTimeOut))
				{
					Bridge.OnError(this, Strings.Timeout);
					retVal = Event.Done;
					goto stopTest;
				}
				if (e.Contains(Event.Next)) goto flow_set;
			}
			while (!e.Contains(Event.FlowReached));

        flow_set:
            int time = StateMachine.Time;
            float currentFlow = RefFlow.Val;

            /// Extract cameras from the current sensors path, add operations to the detection state
            IList<IOperation> measureOperations = new List<IOperation>();
            for (int i = 0; i < sensPath.RegisterReaders.Length; i++)
            {
                GenericDevices.ICameraRoi cameraRoi = sensPath.RegisterReaders[i] as GenericDevices.ICameraRoi;
                if (cameraRoi != null) measureOperations.Add(cameraRoi.MeasureOp());
            }

            tstRslt.TimeStart = DateTime.Now;

            //------------------------------------------------
            Bridge.OnActivity(this, Strings.Test_in_progress);
            //------------------------------------------------
			State.Create("FlyingStart : Starting the test")
				.AddOperation(checkUiOp)
                .AddOperations(measureOperations)
                .AddOperation(cBrd.StartMeasurementOp(outPath, Elde.TestMethods.Synchro,
													  test.Qfrom, test.Qto, totalPulses, (float)test.TolerRed))
				.EnterState();
			do
			{
				e = StateMachine.WaitRunDevsRunOps();
				if (e.Contains(Event.Error))	 { retVal = Event.Error;	 goto stopTest; }
				if (e.Contains(Event.UiCmdStop)) { retVal = Event.UiCmdStop; goto stopTest; }
			}
			while (!e.Contains(Event.MeasurementStarted));


            foreach (var rr in sensPath.RegisterReaders)
            {
                if (rr is WaterMeters.iPerl.WaterMeter) (rr as WaterMeters.iPerl.WaterMeter).TestName = test.Name;
            }


			/// Measurement loop - preparation
            readRegistersOp = new Operations.ReadMoreRegistersOp(sensPath.RegisterReaders, ref WMPulses, ref WMRefPulses);
            queryEnd1 = cBrd.QueryMeasurementEndOp();
			queryEnd2 = cBrd.QueryMeasurementEndOp();

            bool firstTime = true;		/// To reset sums for averaging
			ResetAveragedData();
			int estimtdEndTime = StateMachine.Time + (int)test.TstTime;

            /// Measurement loop - begin
			while (true)
			{
                //--------------------------------
                switch (ReadRegistersTempPressAmbient(measureOperations, true))
				{
					case Event.Error:		{ retVal = Event.Error;		goto stopTest; }
					case Event.UiCmdStop:	{ retVal = Event.UiCmdStop; goto stopTest; }
					case Event.MeasurementCompleted: goto test_completed;
				}

				int remainingTime = Math.Max(estimtdEndTime - StateMachine.Time, 0);
				if (remainingTime > 60)
				{
					Bridge.OnActivity(this, string.Format("{0} ... {1} {2} {3} {4}", Strings.Test_in_progress, remainingTime / 60, "min", remainingTime % 60, Strings.sec));
				}
				else
				{
					Bridge.OnActivity(this, string.Format("{0} ... {1} s", Strings.Test_in_progress, remainingTime));
				}

                if (firstTime)
                {
                    firstTime = false;                  /// Do the following only once
					tstRslt.TempInStart = TempIn.Val;
                    tstRslt.TempOutStart = TempOut.Val;
                    tstRslt.TempDivStart = TempDiv.Val;
                    tstRslt.PressInStart = PressureUp.Val;
                    tstRslt.PressOutStart = PressureDown.Val;
                }

                tstRslt.TempInEnd = TempIn.Val;
                tstRslt.TempOutEnd = TempOut.Val;
                tstRslt.TempDivEnd = TempDiv.Val;
                tstRslt.PressInEnd = PressureUp.Val;
                tstRslt.PressOutEnd = PressureDown.Val;
                tstRslt.MassEndRaw = Mass.Val;

				AccumulateAveragedData();

                RefFreq.Val = cBrd.ReferenceFreq;
                RefFlow.Val = cBrd.ReferenceFlow;
                tstRslt.AmbientTempAve = AmbientTemp.Val;
                tstRslt.AmbientPressAve = AmbientPressure.Val;
                tstRslt.AmbientHumiAve = AmbientHumidity.Val;

				string logstr = string.Format("E={0} f={1} q={2}", cBrd.EtPulses(0), cBrd.ReferenceFreq,
											  cBrd.ReferenceFlow * outPath.FlowMeter.NominalFlow);
				for (int i = 0; i < Config.Data.WMsCount; i++)
				{
					logstr += string.Format(" M{0}=({1},{2})", i + 1, WMRefPulses[i], WMPulses[i]);
				}
				log.Debug(logstr);


                float progress = Formulas.TestProgress(cBrd.EtPulses(0), totalPulses, estFlowSetTime, test.TstTime);
                Bridge.OnTestProgress(this, GetTestProgressData(test, tstRslt, true, cBrd, cBrd.TTime, progress));
			}
            /// Measurement loop - end

        test_completed:

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Test_completed);
			//------------------------------------------------

            /// Make sure the CycleBeginForm is closed so that water meter data (s/n) can be copied into results
			if (UIFlowControl.Stop == WaitBeginFormClosed()) goto stopTest;

			///
			/// Populate TestResult data entity with data
			/// 
			UpdateTestRsltWithAveragedData(tstRslt);

			tstRslt.TimeEnd			= DateTime.Now;
			tstRslt.BatchNr			= Program.LocalSettings.BatchNr;
			tstRslt.MassStart		= 0;
			tstRslt.MassEnd			= 0;
			tstRslt.MassDiff		= 0;
			tstRslt.DensityIn		= Formulas.WaterDensityFromTemp(tstRslt.TempInAvrg);					/// [kg/m3]
			tstRslt.DensityOut		= Formulas.WaterDensityFromTemp(tstRslt.TempOutAvrg);					/// [kg/m3]
			tstRslt.DensityDiv		= Formulas.WaterDensityFromTemp(tstRslt.TempDivAvrg);					/// [kg/m3]
			tstRslt.Time			= cBrd.TTime;															/// [s] measurement time
			tstRslt.FlowMass		= 0;																	/// [kg/h]
            tstRslt.FlowVolume		= 3600.0f * ltrPerRefPulse * cBrd.EtPulses(0) / tstRslt.Time;			/// [l/h]
            tstRslt.PulsesMaster	= cBrd.EtPulses(0);														/// Pulses of the master flow meter (test total)
            tstRslt.VolumeMaster	= ltrPerRefPulse * tstRslt.PulsesMaster;								/// [l] volume from the master flow meter
            tstRslt.ConstMaster		= outPath.FlowMeter.LtrPerPulseCorrected(tstRslt.FlowVolume / 1000.0f); /// Convert the flow to [m3/h]
            tstRslt.VolumeCTV		= tstRslt.ConstMaster * tstRslt.PulsesMaster;							/// [l] 1000.0f is because density is in [kg/m3]
			/// Corrected master pulses per liter
			tstRslt.ErrorMaster		= 0.0f;     /// Cannot be determined without the collected water mass measurement
			tstRslt.TimeDivStart0	= 0;
			tstRslt.TimeDivStart1	= 0;
			tstRslt.TimeDivStart2	= 0;
			tstRslt.TimeDivStart3	= 0;
			tstRslt.TimeDivStart4	= 0;
			tstRslt.TimeDivStart5	= 0;
			tstRslt.TimeDivEnd0		= 0;
			tstRslt.TimeDivEnd1		= 0;
			tstRslt.TimeDivEnd2		= 0;
			tstRslt.TimeDivEnd3		= 0;
			tstRslt.TimeDivEnd4		= 0;
			tstRslt.TimeDivEnd5		= 0;

			for (int i = 0; i < Config.Data.WMsCount; i++)
			{
				/// Reference to iPerl water meter or null:
				WaterMeters.iPerl.WaterMeter iPerl = ((sensPath.RegisterReaders != null) && (i < sensPath.RegisterReaders.Length))
												   ? (sensPath.RegisterReaders[i] as WaterMeters.iPerl.WaterMeter)
												   : null;

				if ((sensPath.RegisterReaders[i] != null) && (WaterMeters.Count > i) && !WaterMeters[i].Disabled)
				{
					tstRslt.Meters[i].SerialNr = (WaterMeters.Count > i) ? WaterMeters[i].SerialNr : string.Empty;
					tstRslt.Meters[i].PulsesPerLiter = sensPath.RegisterReaders[i].PulsesPerLtr;

					if (iPerl != null)
					{
						tstRslt.Meters[i].VolumeStart = (float)iPerl.VolumeLtrStart;                                    /// liter
						tstRslt.Meters[i].VolumeEnd = (float)iPerl.VolumeLtrEnd;                                        /// liter
						tstRslt.Meters[i].VolumeMeter = (float)Math.Abs(iPerl.VolumeLtrEnd - iPerl.VolumeLtrStart);
						tstRslt.Meters[i].VolumeRef = tstRslt.VolumeCTV * (float)(iPerl.TimestampSecEnd - iPerl.TimestampSecStart) / tstRslt.Time;
						iPerl.VolumeLtrRef = (double)tstRslt.Meters[i].VolumeRef;
						tstRslt.Meters[i].Time = (float)(iPerl.TimestampSecEnd - iPerl.TimestampSecStart);
						tstRslt.Meters[i].TimeStart = (float)iPerl.TimestampSecStart;
						tstRslt.Meters[i].TimeEnd = (float)iPerl.TimestampSecEnd;
						tstRslt.Meters[i].CalibFactor = (iPerl.CalibrationStruct != null) ? iPerl.CalibrationStruct.Calibration : 0;
						tstRslt.Meters[i].Q2Correction = iPerl.CurrentQ2Correction;
					}
					else
					{
						tstRslt.Meters[i].VolumeStart = 0;                                      /// liter
						tstRslt.Meters[i].VolumeEnd = 0;                                        /// liter
						if (sensPath.RegisterReaders[i].PulsesPerLtr <= float.Epsilon) tstRslt.Meters[i].VolumeMeter = 0;
						else tstRslt.Meters[i].VolumeMeter = Convert.ToSingle(WMPulses[i]) / sensPath.RegisterReaders[i].PulsesPerLtr;
						tstRslt.Meters[i].VolumeRef = tstRslt.ConstMaster * WMRefPulses[i];     /// liter
						tstRslt.Meters[i].Time = cBrd.TTime;
						tstRslt.Meters[i].TimeStart = 0;
						tstRslt.Meters[i].TimeEnd = 0;
						tstRslt.Meters[i].CalibFactor = 0;
						tstRslt.Meters[i].Q2Correction = 0;
					}

					tstRslt.Meters[i].PulsesMeter = WMPulses[i];
					tstRslt.Meters[i].PulsesMaster = WMRefPulses[i];
					if (WMPulses[i] > 0 && tstRslt.Meters[i].VolumeRef > 0)
					{
						tstRslt.Meters[i].VolumeErrorPct =
							100 * (tstRslt.Meters[i].VolumeMeter - tstRslt.Meters[i].VolumeRef) / tstRslt.Meters[i].VolumeRef;
						/// %
					}
					else
					{
						tstRslt.Meters[i].VolumeErrorPct = -100;
					}
					tstRslt.Meters[i].Passed = (tstRslt.ErrLimLo <= tstRslt.Meters[i].VolumeErrorPct) && (tstRslt.Meters[i].VolumeErrorPct <= tstRslt.ErrLimHi);
				}
				else
				{
					tstRslt.Meters[i].Disabled = true;
				}

				if (iPerl != null)
				{
					iPerl.LastTestResult = tstRslt.Meters[i];		/// Save this water meter test result to iPerl WM
					iPerl.NominalTestFlow = 500.0 * (double)(test.Qfrom + test.Qto);	/// Ave. + convert to liter/hour
				}
			}
			/// Add data - end

			AddOrOverwriteResult(tstRslt);

			Bridge.OnTestCompleted(this, new TestCompletedEventArgs(tstRslt));

			/// Append the results to the CSV-file
			allResults.Info(TestResult2CsvLine(tstRslt));


			if (++repetitionNr <= test.Repeats)
			{
				goto loop;
			}


		stopTest:

			///----------------------///
			///  Quit this sequence  ///
			///----------------------///

			State.Create("FlyingStart : Stopping diverter, gate, etc.")
				.AddOperation(checkUiOp)
				.AddOperation(cBrd.StopPreviousOp())
				.EnterState();
			do
			{
				e = StateMachine.WaitRunDevsRunOps();
				if (e.Contains(Event.UiCmdStop)) { retVal = Event.UiCmdStop; goto stopTest; }
			}
			while (!e.Contains(Event.PreviousStopped));

			/// Transition sequence at the end of test
			/// Prevent overwriting 'retVal' in case it was set to non-default value earlier
			switch (Transition(transitionAfter, TransitionContext.AfterTest))
			{
				case Event.Error:	  { if (retVal == Event.Done) retVal = Event.Error;		break; }
				case Event.UiCmdStop: { if (retVal == Event.Done) retVal = Event.UiCmdStop; break; }
			}

			/// Create a list with one item 'retVal' (default is Event.Done) and return it
			IList<Event> retList = new List<Event>(1);
			retList.Add(retVal);
			return retList;
		}
    }
}