///
/// 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));
			string testName = Results.Utils.GetTestName(test.Name, test.Repeats, repetitionNr);
			TestStartTime = DateTime.Now;

            //------------------------------------------------
            Bridge.OnActivity(this, Strings.Setting_the_flow);
            //------------------------------------------------
			int flowSetTime0 = StateMachine.Time;
			int flowSetTime = 0;
			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();

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

                flowSetTime = StateMachine.Time - flowSetTime0;
				float progress = Formulas.TestProgress(flowSetTime, estFlowSetTime, test.TstTime);
                Bridge.OnTestProgress(this, GetTestProgressData(test, repetitionNr, 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());
            }

            //------------------------------------------------
            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();

            ClearAllStatistics();
			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));
				}

				UpdateAllStatistics();
				CurrentMassRaw = Mass.Val;
                RefFreq.Val = cBrd.ReferenceFreq;
                RefFlow.Val = cBrd.ReferenceFlow;

				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, repetitionNr, true, cBrd, cBrd.TTime, progress));
			}
            /// Measurement loop - end

        test_completed:

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

			TestEndTime = DateTime.Now;

            /// 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
			/// 
			Results.Entities.TestRslt tstRslt = BatchRslts.GetTestRslt(testName, test.Part);

			if (tstRslt != null)
			{
				/// Auxiliary results
				tstRslt.AmbientTempAve = AmbientTempStat.Average;
				tstRslt.AmbientPressAve = AmbientPressureStat.Average;
				tstRslt.AmbientHumiAve = AmbientHumidityStat.Average;
				tstRslt.PressUpAvrg = PressureUpStat.Average;
				tstRslt.PressUpStart = PressureUpStat.First;
				tstRslt.PressUpEnd = PressureUpStat.Last;
				tstRslt.PressUpMin = PressureUpStat.Min;
				tstRslt.PressUpMax = PressureUpStat.Max;
				tstRslt.PressDownAvrg = PressureDownStat.Average;
				tstRslt.PressDownStart = PressureDownStat.First;
				tstRslt.PressDownEnd = PressureDownStat.Last;
				tstRslt.PressDownMin = PressureDownStat.Min;
				tstRslt.PressDownMax = PressureDownStat.Max;
				tstRslt.TempInAvrg = TempInStat.Average;
				tstRslt.TempInStart = TempInStat.First;
				tstRslt.TempInEnd = TempInStat.Last;
				tstRslt.TempInMin = TempInStat.Min;
				tstRslt.TempInMax = TempInStat.Max;
				tstRslt.TempOutAvrg = TempOutStat.Average;
				tstRslt.TempOutStart = TempOutStat.First;
				tstRslt.TempOutEnd = TempOutStat.Last;
				tstRslt.TempOutMin = TempOutStat.Min;
				tstRslt.TempOutMax = TempOutStat.Max;
				tstRslt.TempDivAvrg = TempDivStat.Average;
				tstRslt.TempDivStart = TempDivStat.First;
				tstRslt.TempDivEnd = TempDivStat.Last;
				tstRslt.TempDivMin = TempDivStat.Min;
				tstRslt.TempDivMax = TempDivStat.Max;
				tstRslt.DensityIn  = Formulas.WaterDensityFromTemp(tstRslt.TempInAvrg);		/// [kg/m3]
				tstRslt.DensityOut = Formulas.WaterDensityFromTemp(tstRslt.TempOutAvrg);	/// [kg/m3]
				tstRslt.DensityDiv = Formulas.WaterDensityFromTemp(tstRslt.TempDivAvrg);	/// [kg/m3]

				/// Main results
				tstRslt.StartTime    = TestStartTime;
				tstRslt.EndTime      = TestEndTime;
				tstRslt.FlowSetTime  = flowSetTime;
				tstRslt.TestTime     = cBrd.TTime;							/// [s] measurement time
				tstRslt.PulsesMaster = Convert.ToDouble(cBrd.EtPulses(0));	/// Pulses of the master flow meter (test total)
				tstRslt.MassStartRaw = 0;
				tstRslt.MassStart    = 0;
				tstRslt.MassEndRaw   = 0;
				tstRslt.MassEnd      = 0;
				tstRslt.FlowMass     = 0;																/// [kg/h]
				tstRslt.FlowVolume   = 3.6 * ltrPerRefPulse * tstRslt.PulsesMaster / tstRslt.TestTime;	/// [m3/h]
				tstRslt.VolumeMaster = ltrPerRefPulse * tstRslt.PulsesMaster;							/// [l] volume from the master flow meter
				tstRslt.ConstMaster  = outPath.FlowMeter.LtrPerPulseCorrected(tstRslt.FlowVolume);		/// Corrected master pulses per liter
				tstRslt.VolumeCTV    = tstRslt.ConstMaster * tstRslt.PulsesMaster;						/// [l] 1000.0f is because density is in [kg/m3]				
				tstRslt.ErrorMaster  = 0.0;																/// Cannot be determined without a mass measurement

				for (int i = 0; i < BatchRslts.WMPositionsCount; i++)
				{
					Results.Entities.MeterTestRslt meterRslt = BatchRslts.GetMeterTestRslt(testName, i, Config.Entities.CompoundMeterId.Single);
					GenericDevices.IRegisterReader regReader = (sensPath.RegisterReaders == null) ? null : sensPath.RegisterReaders[i];
					WaterMeters.iPerl.WaterMeter iPerl = regReader as WaterMeters.iPerl.WaterMeter;

					if (meterRslt != null && regReader != null)
					{
						meterRslt.PulsesPerLiter = regReader.PulsesPerLtr;
						meterRslt.PulsesMeter    = Convert.ToDouble(WMPulses[i]);
						meterRslt.PulsesMaster   = Convert.ToDouble(WMRefPulses[i]);

						if (iPerl != null)
						{
							meterRslt.TimestampStart = iPerl.TimestampSecStart;
							meterRslt.TimestampEnd   = iPerl.TimestampSecEnd;
							meterRslt.TestTime       = meterRslt.TimestampEnd - meterRslt.TimestampStart;
							meterRslt.VolumeStart    = iPerl.VolumeLtrStart;		/// liter
							meterRslt.VolumeEnd		 = iPerl.VolumeLtrEnd;          /// liter
							meterRslt.VolumeMeter	 = Math.Abs(iPerl.VolumeLtrEnd - iPerl.VolumeLtrStart);
							meterRslt.VolumeRef      = tstRslt.VolumeCTV * meterRslt.TestTime / tstRslt.TestTime;
							iPerl.VolumeLtrRef		 = meterRslt.VolumeRef;
#if IPERLST
							meterRslt.CalibFactor  = (iPerl.CalibrationStruct != null) ? iPerl.CalibrationStruct.Calibration : 0;
							meterRslt.Q2Correction = iPerl.CurrentQ2Correction;
#endif
							iPerl.LastTestResult  = meterRslt;							/// Save this water meter test result to iPerl WM
							iPerl.NominalTestFlow = 500.0 * (test.Qfrom + test.Qto);	/// Ave. + convert to liter/hour
						}
						else
						{
							meterRslt.TestTime    = tstRslt.TestTime;
							meterRslt.VolumeStart = 0;
							meterRslt.VolumeEnd   = 0;
							meterRslt.VolumeMeter = (meterRslt.PulsesPerLiter <= float.Epsilon) ? 0 : meterRslt.PulsesMeter / meterRslt.PulsesPerLiter;
							meterRslt.VolumeRef   = tstRslt.ConstMaster * meterRslt.PulsesMaster;     /// liter
						}

						meterRslt.Error  = Formulas.ErrorFromVolumes(meterRslt.VolumeMeter, meterRslt.VolumeRef);
						meterRslt.Passed = (meterRslt.Error >= test.ErrLimLo + test.Uncertainty)
										&& (meterRslt.Error <= test.ErrLimHi - test.Uncertainty);
						meterRslt.TestDone = true;
					}
				}
			}
			/// Add data - end


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

			/// Append the results to the CSV-file
			allResults.Info(TestResult2CsvLine(testName, test.Part));


			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;
		}
    }
}