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

namespace TBF.BenchControl.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(Config.Entities.Test test, LeakTestParams testParams)
		{
			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

			processDataLoggingOp = new TBF.BenchControl.Operations.ProcessDataLoggingOp(processDataLogger, this);


			// 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; }
			}

			/// Start the test, initialize test results
			Bridge.OnTestSelected(this, new TestSelectedEventArgs(test, 1, inPath, benchPath, outPath, sensPath, 0));
			string testName = Results.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("LeakTest : Starting the pump")
				.AddOperation(checkUiOp)
				.AddOperation(cBrd.SetValvesOp(inPath.Pump, null))
				.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
				.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
				.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
				.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
				.EnterState();
			do
			{
				e = StateMachine.WaitRunDevsRunOps();
				if (e.Contains(Event.UiCmdStop)) { retVal = Event.UiCmdStop; goto stopTest; }
			}
			while (e.Contains(Event.ValvesBusy));

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

			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("LeakTest : Setting the water pressure")
					.AddOperation(checkUiOp)
					.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
					.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
					.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
					.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
					.AddOperation(new Operations.TimerOp(5))
					.EnterState();
				do
				{
					e = StateMachine.WaitRunDevsRunOps();

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

				UiBridge.Bridge.OnLog(this, string.Format("time = {0}, pump_power = {1}%, pressure_up = {2}kPa, pressure_down = {3}kPa\r\n",
										StateMachine.Time - startTime,
										pumpPower.ToString("F0"),
										PressureUp.Val.ToString("F1"),
										PressureUp.Val.ToString("F1")));

				float step = (pumpPower < 40.0f) ? 5.0f : ((pumpPower < 60.0f) ? 3.0f : ((pumpPower < 80.0f) ? 2.0f : 1.0f));

				if (PressureDown.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 (PressureDown.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:

			ClearAllStatistics();
			UpdateAllStatistics();

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

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Test_in_progress);
			//------------------------------------------------
			State.Create("LeakTest : Maximum water pressure set")
				.AddOperation(checkUiOp)
				.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
				.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
				.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
				.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
				.AddOperation(new Operations.TimerOp(testParams.DurationPMax))
				.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; }

				UpdateAllStatistics();

				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));

		closing_valve:

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Closing_valve_Pump_off);
			//------------------------------------------------
			State.Create("LeakTest : Closing the valve")
				.AddOperation(checkUiOp)
				.AddOperation(cBrd.SetValvesOp(null, outPath.StartValve))
				.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
				.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
				.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
				.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
				.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; }

				UpdateAllStatistics();
			}
			while (e.Contains(Event.ValvesBusy));

		valve_closed:

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

			State.Create("LeakTest : Closing the valve")
				.AddOperation(checkUiOp)
				.AddOperation(cBrd.SetValvesOp(null, inPath.Pump))
				.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
				.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
				.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
				.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
				.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; }

				UpdateAllStatistics();
			}
			while (e.Contains(Event.ValvesBusy));


		pump_is_off:

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

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Test_in_progress);
			//------------------------------------------------
			State.Create("LeakTest : Starting the test")
				.AddOperation(checkUiOp)
				.AddOperation(benchPath.TempIn.ReadTempOp(ref TempIn))
				.AddOperation(benchPath.TempOut.ReadTempOp(ref TempOut))
				.AddOperation(benchPath.PressIn.ReadPressureOp(ref PressureUp))
				.AddOperation(benchPath.PressOut.ReadPressureOp(ref PressureDown))
				.AddOperation(new Operations.TimerOp(testParams.DurationLeak))
				.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; }

				UpdateAllStatistics();

				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));

			/// 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 = 0;

				/// Main results
				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)
				tstRslt.MassStartRaw = 0;
				tstRslt.MassStart    = 0;
				tstRslt.MassEndRaw   = 0;
				tstRslt.MassEnd      = 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.ConstMaster  = 0;			/// Convert the flow to [m3/h]
				tstRslt.ErrorMaster  = 0;

				for (int i = 0; i < BatchRslts.WMPositionsCount; i++)
				{
					if (StateMachine.Procedure.MetersKind == MetersKind.Single)
					{
						Results.Entities.MeterTestRslt meterRslt = BatchRslts.GetMeterTestRslt(testName, i, Config.Entities.CompoundMeterId.Single);

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

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

						if (compoundMeterRslt != null)
						{
							compoundMeterRslt.TestTime = tstRslt.TestTime;
							compoundMeterRslt.Error = 0;
							compoundMeterRslt.Passed = true;
							mainMeterRslt.TestDone = auxMeterRslt.TestDone = compoundMeterRslt.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.Balance != null ? outPath.Balance.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, 1, Config.Entities.Progress.TransitionAfter));

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


		stopTest:

			///
			/// Quit this sequence
			///
			State.Create("LeakTest : 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, (retVal == Event.Done) ? TransitionContext.AfterTest : TransitionContext.Stop))
			{
				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;
		}
    }
}