///
/// Copyright (c) 2015-2019 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using Common;
using Config.Entities;
using TBF.Rig;
using TBF.Boxes;
using TBF.Resources;
using TBF.UiBridge;
using TBF.Rig.GenericDevices;

namespace TBF.Rig.TestMethods.LeakTest
{
	public class LeakTestSeq : Sequences.SequenceBase
    {
		private static readonly ILog log = LogManager.GetLogger(typeof(LeakTestSeq));

		/// <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(Test test, int repetitionNr, bool isLastRepetition, LeakTestParams testParams)
		{
            if ((testParams.MaxPressureDrop != 0) && (benchPath.PressMtrDown == null))
            {
                Bridge.OnError(this, Strings.Missing_a_pressure_meter);
                return new List<Event> { Event.ConfigurationError };
            }

            IScale scale = outPath.Scale as IScale;
            if (testParams.MaxMassIncrease > 0 && scale == null)
            {
                Bridge.OnError(this, Strings.Missing_a_scale);
                return new List<Event> { Event.ConfigurationError };
            }
            
            IList<Event> e;                            /// Events from currently running operations
			Event retVal = Event.Done;
            Elde.ControlBoardDev cBrd = StateMachine.ControlBoard;
            checkUiOp = new Operations.CheckUIOp(true);	/// Runs in more then one state
			processDataLoggingOp = new TBF.Rig.Operations.ProcessDataLoggingOp(processDataLogger, this, false);

            IList<IOperation> readTempPressOps = new List<IOperation>();
            if (benchPath.TempMtrUp != null) readTempPressOps.Add(benchPath.TempMtrUp.ReadTempOp(ref TempUp));
            if (benchPath.TempMtrDown != null) readTempPressOps.Add(benchPath.TempMtrDown.ReadTempOp(ref TempDown));
            if (outPath.TempDiv != null) readTempPressOps.Add(outPath.TempDiv.ReadTempOp(ref TempDiv));
            if (benchPath.PressMtrUp != null) readTempPressOps.Add(benchPath.PressMtrUp.ReadPressureOp(ref PressUp));
            if (benchPath.PressMtrDown != null) readTempPressOps.Add(benchPath.PressMtrDown.ReadPressureOp(ref PressDown));
            if (benchPath.PressMtrDelta != null) readTempPressOps.Add(benchPath.PressMtrDelta.ReadPressureOp(ref PressDelta));
            if (heatMetersPath != null) readTempPressOps.Add(heatMetersPath.TMeterRefWarm1.ReadTempOp(ref TempRefHi1));
            if (heatMetersPath != null) readTempPressOps.Add(heatMetersPath.TMeterRefWarm2.ReadTempOp(ref TempRefHi2));
            if (heatMetersPath != null) readTempPressOps.Add(heatMetersPath.TMeterRefCold1.ReadTempOp(ref TempRefLo1));
            if (heatMetersPath != null) readTempPressOps.Add(heatMetersPath.TMeterRefCold2.ReadTempOp(ref TempRefLo2));

            /// Read pressure and temperature once before calling Bridge.OnTestSelected(...)
            State.Create(string.Format("{0}({1}) : Measuring process data", test.Method, test.Name))
                 .AddOperation(checkUiOp)
                 .AddOperations(readTempPressOps)
                 .EnterState();
            do {
                e = StateMachine.WaitRunDevsRunOps();
                if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
            }
            while (e.Contains(Event.Busy));

            /// Start the test, initialize test results
            Bridge.OnTestSelected(this, new TestSelectedEventArgs(test, 1, inPath, benchPath, outPath, sensPath, heatMetersPath, 0));
            string testName = Common.Utils.GetTestName(test.Name, test.Repeats, 1);

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Starting_the_pump);
			//------------------------------------------------
			if (inPath.Pump is GenericDevices.IPumpFM) (inPath.Pump as GenericDevices.IPumpFM).TurnOn(test.PumpPower);

			State.Create(string.Format("{0}({1}) : Starting the pump", test.Method, test.Name))
				 .AddOperation(checkUiOp)
                 .AddOperations(readTempPressOps)
                 //.AddOperation(new Operations.SetAllRegulValvesOp(inPath.RegulValves, inPath.RegulValvesPct, 60))
                 .AddOperation(inPath.Pump != null ? cBrd.SetValvesOp(inPath.Pump, null) : null)
                 .EnterState();
			do {
				e = StateMachine.WaitRunDevsRunOps();
				if (TestAndLogUiCmdStop(test,e)) { retVal = Event.UiCmdStop; goto stopTest; }
                if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
            }
			while (e.Contains(Event.ValvesBusy) /* || !e.Contains(Event.AllPositionsReached)*/);


			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Setting_the_water_pressure);
			Bridge.OnTestProgress(this, new TestProgressEventArgs(test, repetitionNr, Progress.FlowSetting));
            //------------------------------------------------

			float pumpPower = test.PumpPower;
			int startTime = StateMachine.Time;

			while (true)
			{
				if (inPath.Pump is GenericDevices.IPumpFM) (inPath.Pump as GenericDevices.IPumpFM).TurnOn(pumpPower);

				State.Create(string.Format("{0}({1}) : Setting the water pressure", test.Method, test.Name))
					 .AddOperation(checkUiOp)
                     .AddOperations(readTempPressOps)
					 .AddOperation(new Operations.TimerOp(5))
					 .EnterState();
				do {
					e = StateMachine.WaitRunDevsRunOps();

					if (TestAndLogUiCmdStop(test,e)) { retVal = Event.UiCmdStop; goto stopTest; }
					if (e.Contains(Event.Next)) goto pressure_set;
				}
				while (e.Contains(Event.TimerBusy));

                //UiBridge.Bridge.OnEvent(this, string.Format("time = {0}, pump_power = {1}%, pressure_up = {2}bar, pressure_down = {3}bar\r\n",
                //                        StateMachine.Time - startTime,
                //                        pumpPower.ToString("F0"),
                //                        PressUp.ToString(),
                //                        PressDown.ToString()));

				float step = (pumpPower < 40.0f) ? 4.7f : ((pumpPower < 60.0f) ? 3.3f : ((pumpPower < 80.0f) ? 2.2f : ((pumpPower < 90.0f) ? 1.5f : 1.2f)));

				if (PressDown.Val < testParams.PressureLo)
				{
					if (pumpPower == 100.0f) break;					/// Already at max. pump power -> Quit loop
					pumpPower = Math.Min(pumpPower + step, 100.0f);	/// Limit max. power to 100%
				}
				else if (PressDown.Val > testParams.PressureHi)
				{
					if (pumpPower == 0) break;						/// Already at min. pump power -> Quit loop
					pumpPower = Math.Max(pumpPower - step, 0);		/// Limit min. power to 0%
				}
				else
				{
					break;											/// Pressure is in the range -> Quit loop
				}
			}

		pressure_set:

            ///------------------------------------------------------
            Bridge.OnActivity(this, Strings.Closing_valve_Pump_off);
            ///------------------------------------------------------
            State.Create(string.Format("{0}({1}) : Closing the valve", test.Method, test.Name))
                 .AddOperation(checkUiOp)
                 .AddOperations(readTempPressOps)
                 .AddOperation(new TBF.Rig.Elde.SetValvesOp(cBrd, true, outPath))
                 .EnterState();
            do
            {
                e = StateMachine.WaitRunDevsRunOps();

                if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
            }
            while (e.Contains(Event.ValvesBusy));


            if (!testParams.IsPumpRunning)
            {
                /// testParams.IsPumpRunning==false => Close the pump at the beginning of the leak part of the test 

                if (inPath.Pump is GenericDevices.IPumpFM) (inPath.Pump as GenericDevices.IPumpFM).TurnOff();

                State.Create(string.Format("{0}({1}) : Stopping the pump", test.Method, test.Name))
                     .AddOperation(checkUiOp)
                     .AddOperations(readTempPressOps)
                     .AddOperation(cBrd.SetValvesOp(null, inPath.Pump))
                     .EnterState();
                do
                {
                    e = StateMachine.WaitRunDevsRunOps();

                    if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                    if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
                }
                while (e.Contains(Event.ValvesBusy));
            }

			startTime = StateMachine.Time;
			int estimtdEndTime = startTime + testParams.DurationPMax;

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Test_in_progress);
			Bridge.OnTestProgress(this, new TestProgressEventArgs(test, repetitionNr, Progress.Test));
            //------------------------------------------------
			State.Create(string.Format("{0}({1}) : Maximum water pressure set", test.Method, test.Name))
				 .AddOperation(checkUiOp)
                 .AddOperations(readTempPressOps)
				 .AddOperation(new Operations.TimerOp(testParams.DurationPMax))
				 .EnterState();
			do {
				e = StateMachine.WaitRunDevsRunOps();

				if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
				if (TestAndLogUiCmdStop(test,e)) { retVal = Event.UiCmdStop; goto stopTest; }

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


            StartNewStatistics(StateMachine.Time, BatchRslts.Batch.BatchNr, test.Name, repetitionNr, 0);
            UpdateAllStatistics(StateMachine.Time);

            if (testParams.MaxMassIncrease > 0)
            {
                //-----------------------------------------------------
                Bridge.OnActivity(this, Strings.Measuring_the_weight);
                //-----------------------------------------------------
                State.Create(string.Format("{0}({1}) : Measuring the start mass", test.Method, test.Name))
                     .AddOperation(checkUiOp)
                     .AddOperations(readTempPressOps)
                     .AddOperation(scale.ReadStableMassOp(ref StartMass, test.MassRepeats, test.MassSpread, test.MassMethod))
                     .AddOperation(new Operations.TimerOp(StableMassMsrmntTimeoutSec))
                     .EnterState();
                do {
                    e = StateMachine.WaitRunDevsRunOps();
                    if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                    if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
                    if (e.Contains(Event.TimerExpired))
                    {
                        Bridge.OnError(this, Strings.Mass_measurement_timeout);
                        retVal = Event.RecoverableError;
                        goto stopTest;
                    }

                    UpdateAllStatistics(StateMachine.Time);
                }
                while (!e.Contains(Event.BalanceDone));
            }

            TestStartTime = DateTime.Now;
            startTime = StateMachine.Time;
            estimtdEndTime = startTime + testParams.DurationLeak;

			///------------------------------------------------
			Bridge.OnActivity(this, Strings.Test_in_progress);
			///------------------------------------------------
			State.Create(string.Format("{0}({1}) : Starting the test", test.Method, test.Name))
				 .AddOperation(checkUiOp)
                 .AddOperations(readTempPressOps)
				 .AddOperation(new Operations.TimerOp(testParams.DurationLeak))
				 .EnterState();
			do {
				e = StateMachine.WaitRunDevsRunOps();

				if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
				if (TestAndLogUiCmdStop(test,e)) { retVal = Event.UiCmdStop; goto stopTest; }

                UpdateAllStatistics(StateMachine.Time);

				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));
				}
			}
			while (e.Contains(Event.TimerBusy));

            if (testParams.MaxMassIncrease > 0)
            {
                //-----------------------------------------------------
                Bridge.OnActivity(this, Strings.Measuring_the_weight);
                //-----------------------------------------------------
                State.Create(string.Format("{0}({1}) : Measuring the end mass", test.Method, test.Name))
                     .AddOperation(checkUiOp)
                     .AddOperations(readTempPressOps)
                     .AddOperation(scale.ReadStableMassOp(ref EndMass, test.MassRepeats, test.MassSpread, test.MassMethod))
                     .AddOperation(new Operations.TimerOp(StableMassMsrmntTimeoutSec))
                     .EnterState();
                do {
                    e = StateMachine.WaitRunDevsRunOps();
                    if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                    if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
                    if (e.Contains(Event.TimerExpired))
                    {
                        Bridge.OnError(this, Strings.Mass_measurement_timeout);
                        retVal = Event.RecoverableError;
                        goto stopTest;
                    }

                    UpdateAllStatistics(StateMachine.Time);
                }
                while (!e.Contains(Event.BalanceDone));
            }

            TestEndTime = DateTime.Now;
            StopRecordingStatistics();

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


            if (testParams.IsPumpRunning)
            {
                /// testParams.IsPumpRunning==true => Close the pump at the end of the leak part of the test 

                if (inPath.Pump is GenericDevices.IPumpFM) (inPath.Pump as GenericDevices.IPumpFM).TurnOff();

                State.Create(string.Format("{0}({1}) : Stopping the pump", test.Method, test.Name))
                     .AddOperation(checkUiOp)
                     .AddOperations(readTempPressOps)
                     .AddOperation(cBrd.SetValvesOp(null, inPath.Pump))
                     .EnterState();
                do {
                    e = StateMachine.WaitRunDevsRunOps();

                    if (e.Contains(Event.Error)) { retVal = Event.Error; goto stopTest; }
                    if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; goto stopTest; }
                }
                while (e.Contains(Event.ValvesBusy));
            }


            /// 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)
            {
                Results.Utils.GetCounterStates(tstRslt, Program.LocalSettings.Counters);
                UpdateTempPressDensAmb(tstRslt);

                tstRslt.DensityDiv = 0;

				/// Main results
                tstRslt.MethodClass      = TbfComponents.FindComponent(test.Method).ClassName;
                tstRslt.StartTime        = TestStartTime;
				tstRslt.EndTime          = TestEndTime;
				tstRslt.FlowSetTime      = 0;
				tstRslt.TestTime	     = Convert.ToDouble(testParams.DurationPMax);	/// [s] measurement time
				tstRslt.PulsesMaster     = 0;			/// Pulses of the master flow meter (test total)

                if (testParams.MaxMassIncrease > 0)
                {
                    tstRslt.MassStartRaw = StartMass.Val;
                    tstRslt.MassEndRaw   = EndMass.Val;
                    tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
                    tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                }
                else
                {
                    tstRslt.MassStartRaw = 0;
                    tstRslt.MassStart    = 0;
                    tstRslt.MassEndRaw   = 0;
                    tstRslt.MassEnd      = 0;
                }

                tstRslt.MassOfEvapWater  = 0;
                tstRslt.FlowMass         = 0;		/// [kg/h]
				tstRslt.FlowVolume       = 0;		/// [m3/h]
                tstRslt.VolumeMaster     = 0;		/// [l] volume from the master flow meter
				tstRslt.VolumeCTV        = 0;		/// [l] 1000.0f is because density is in [kg/m3]
                tstRslt.ConstMasterRaw   = 0;		/// Convert the flow to [m3/h]
                tstRslt.ConstMaster      = 0;		/// Convert the flow to [m3/h]
				tstRslt.ErrorMaster      = 0;
                tstRslt.ErrorFlags       = 0;
                tstRslt.InfoFlags        = 0;


                bool pressureDropPassed = (testParams.MaxPressureDrop == 0) ? true : ((testParams.MaxPressureDrop > 0) ? (PressDownStat.First - PressDownStat.Last < testParams.MaxPressureDrop)
                                                                                                                       : (PressDownStat.First - PressDownStat.Last > testParams.MaxPressureDrop));
                bool massIncreasePassed = (testParams.MaxMassIncrease == 0) ? true : (EndMass.Val - StartMass.Val < testParams.MaxMassIncrease);

                bool leakPassed = pressureDropPassed && massIncreasePassed;

                for (int i = 0; i < BatchRslts.WMPositionsCount; i++)
                {
                    if (!test.IsPartCompatible(Utils.PartNr(i + 1, BatchRslts.Batch.Compound))) continue;

                    if (StateMachine.Procedure.MetersKind == MetersKind.Single)
					{
						Results.Entities.MeterTestRslt meterRslt = BatchRslts.GetMeterTestRslt(testName, i, CompoundMeterId.Single);

						if (meterRslt != null)
						{
							meterRslt.TestTime = tstRslt.TestTime;
							meterRslt.Error = 0;
							meterRslt.Passed = leakPassed;
							meterRslt.TestDone = true;
                            tstRslt.TestDone = true;
                        }
					}
					else
					{
						Results.Entities.MeterTestRslt mainMeterRslt = BatchRslts.GetMeterTestRslt(testName, i, CompoundMeterId.CompoundMain);
						Results.Entities.MeterTestRslt auxMeterRslt = BatchRslts.GetMeterTestRslt(testName, i, CompoundMeterId.CompoundAux);

						for (int isAux = 0; isAux <= 1; isAux++)		/// 0=main, 1=aux
						{
							Results.Entities.MeterTestRslt meterRslt = (isAux == 0) ? mainMeterRslt : auxMeterRslt;

							if (meterRslt != null)
							{
								meterRslt.TestTime = tstRslt.TestTime;
								meterRslt.Error = 0;
                                meterRslt.Passed = leakPassed;
							}
						}

						Results.Entities.MeterTestRslt compoundMeterRslt = BatchRslts.GetMeterTestRslt(testName, i, CompoundMeterId.Compound);

						if (compoundMeterRslt != null)
						{
							compoundMeterRslt.TestTime = tstRslt.TestTime;
							compoundMeterRslt.Error = 0;
							compoundMeterRslt.Passed = leakPassed;
							mainMeterRslt.TestDone = auxMeterRslt.TestDone = compoundMeterRslt.TestDone = true;
                            tstRslt.TestDone = true;
                        }
					}
				}

				tstRslt.Components = Results.Entities.Components
					.UpdateList(BatchRslts.ComponentsList,
								new Results.Entities.Components((BenchInfo != null) ? BenchInfo.TestBenchId : 1,
																(BenchInfo != null) ? BenchInfo.TestBenchName : "testbench",
																inPath.Pump != null ? inPath.Pump.Name : string.Empty,
																outPath.FlowMeter != null ? outPath.FlowMeter.Name : string.Empty,
																outPath.Scale != null ? outPath.Scale.Name : string.Empty,
																outPath.RegulValve != null ? outPath.RegulValve.Name : string.Empty,
																outPath.Diverter != null ? outPath.Diverter.Name : string.Empty));

                /// Update results
				Bridge.OnTestCompleted(this, new TestCompletedEventArgs(testName, tstRslt));
			}

			Bridge.OnTestProgress(this, new TestProgressEventArgs(test, repetitionNr, Progress.TransitionAfter));

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

		stopTest:

			StopRecordingStatistics();

			Bridge.OnTestProgress(this, new TestProgressEventArgs(test, repetitionNr, Progress.TransitionAfter));

			///
			///  Quit this sequence
			///
			if (isLastRepetition || retVal == Event.UiCmdStop || retVal == Event.OpArgumentError
                                 || retVal == Event.RecoverableError || retVal == Event.ErrorFlagsStop
                                 || retVal == Event.Error || retVal == Event.ConfigurationError)
			{
                State.Create(string.Format("{0}({1}) : Stopping diverter, gate, etc.", test.Method, test.Name))
                     .AddOperation(checkUiOp)
                     .AddOperation(cBrd.StopPreviousOp())
                     .EnterState();
                do {
                    e = StateMachine.WaitRunDevsRunOps();
                    if (TestAndLogUiCmdStop(test, e)) { retVal = Event.UiCmdStop; break; }
                }
                while (!e.Contains(Event.PreviousStopped));
            }

			return new List<Event> { retVal };
		}
    }
}