using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using TBF.Resources;
using TBF.UiBridge;

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


		public IList<Event> Execute(Entities.Test test)
		{
			Elde.ControlBoardDev cBrd = StateMachine.ControlBoard;

			IList<Event> e = new List<Event>();             /// Events from currently running operations
            Event retVal = Event.Done;

            /// Operations
            checkUiOp = new Operations.CheckUIOp(true);
            processDataLoggingOp = null;

			//====================================
			/// Start the test, initialize test results
			Bridge.OnTestSelected(this, new TestSelectedEventArgs(test, 1, inPath, benchPath, outPath, sensPath, 0));
			Entities.TestResult tstRslt = new Entities.TestResult(test, 1, Entities.MetersKind.Single);
			tstRslt.DoNotEvaluate = true;
			tstRslt.DoNotPublish = true;


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

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.Setting_the_flow);
			//------------------------------------------------
            foreach (var pump in PumpsWithFM) pump.TurnOnDfltPower();
            State.Create("RoiDetection : Starting the pump")
				.AddOperation(checkUiOp)
				.AddOperation(cBrd.SetValvesOp(inPath.Pump, null))
				.EnterState();
			do
			{
				e = StateMachine.WaitRunDevsRunOps();
                if (e.Contains(Event.UiCmdStop)) { retVal = Event.UiCmdStop; goto stopTest; }
			}
			while (!e.Contains(Event.ValvesSet));

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

                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)) { retVal = Event.Error; 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;

			//------------------------------------------------
			Bridge.OnActivity(this, Strings.ROI_Detection_in_Progress);
			//------------------------------------------------
			State detection = State.Create("RoiDetection : Detection of ROI-s")
								   .AddOperation(checkUiOp);
			/// Extract cameras from the current sensors path, add operations to the detection state
			for (int i = 0; i < sensPath.RegisterReaders.Length; i++)
			{
				GenericDevices.ICameraRoi cameraRoi = sensPath.RegisterReaders[i] as GenericDevices.ICameraRoi;
                if (cameraRoi != null)
                {
                    detection.AddOperation(cameraRoi.DetectOp());
                }
			}			
			detection.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.CameraBusy));

            if (e.Contains(Event.CameraOpFailed))
            {
                retVal = Event.Error;
                Bridge.OnActivity(this, Strings.Camera_error);
                goto stopTest;
            }
            else if (e.Contains(Event.DetectionFailed))
            {
                retVal = Event.Error;
                Bridge.OnActivity(this, Strings.Detection_failed);
                goto stopTest;
            }

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

		stopTest:

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

            State.Create("FlyingStartCollectionMethod : 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(transitionStop, TransitionContext.TestEnd))
            {
                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>();
            retList.Add(retVal);
            return retList;
        }
    }
}