///
/// Copyright (c) 2020 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using log4net;
using Config.Entities;
using TBF.BenchControl;
using TBF.BenchControl.GenericDevices;

namespace TBF.BenchControl.DataEntry.S620
{
    public class EntryForm : ComponentBase, IOperation, IDataEntry, IHasCycleBeginForm, IHasCycleEndForm, IHasWMStatesForm
	{
        private static readonly ILog log = LogManager.GetLogger(typeof(EntryForm));
        public override string ToString() { return string.Format("{0}({1})", this.GetType().Namespace.Substring(17), Cfg.ToString(1)); }

		public bool UsesCameras() { return false; }

        readonly EntryFormCfg entryFormCfg;
        readonly TBF.BenchControl.Output.DB.ProductionTracing.Tracing tracing;

		IRegReader[] regReaders;

		/// <summary>
		/// Properties set by the Begin, End and WMStates form
		/// </summary>
		bool[] disabled;				/// This array is shared between forms

		string[] wmCycleEndState;
		public string WMCycleEndState(int wmNr) { return (wmNr >= 0 && wmNr < wmCycleEndState.Length) ? wmCycleEndState[wmNr] : string.Empty; }

		double[] wmStartState;
		public double WMStartState(int wmNr) { return (wmNr >= 0 && wmNr < wmStartState.Length) ? wmStartState[wmNr] : 0; }

		double[] wmEndState;
		public double WMEndState(int wmNr) { return (wmNr >= 0 && wmNr < wmEndState.Length) ? wmEndState[wmNr] : 0; }

		string[] wmStartStateStr;
		

        System.Windows.Forms.Form modelessDlg;
        public bool Completed { get { return (modelessDlg is IHasCompleted) ? (modelessDlg as IHasCompleted).Completed : true; } }

		double refVolume;
		double errLimLo;
		double errLimHi;

		bool resultSaved;								/// Set in Run() when results are saved

		IList<Results.Entities.WaterMeter> waterMeters;	/// Reference to ...ProcessData.BatchRslts.WaterMeters[]

		public enum CurrentOp
		{
			None,
			ShowFormAtCycleBeginning,
			ShowFormAtCycleEnd,
			EnterTestStartStates,
			EnterTestEndStates,
		}

		CurrentOp currentOp;


		public EntryForm()
		{
		}

        public EntryForm(Generic.IComponentCfg cfg, IList<Generic.IComponent> components)
			: base(cfg)
		{
			entryFormCfg = cfg as EntryFormCfg;

            tracing = (TBF.BenchControl.Output.DB.ProductionTracing.Tracing)TbfComponents.FindComponent(cfg.ParentName, components);
            if (tracing == null) throw new Exception("Cannot find " + Name + " parent");

			disabled = new bool[Config.Data.WMsCount];
			wmStartState = new double[Config.Data.WMsCount];
			wmStartStateStr = new string[Config.Data.WMsCount];
			wmEndState = new double[Config.Data.WMsCount];
			wmCycleEndState = new string[Config.Data.WMsCount];

			currentOp = CurrentOp.None;
            log.Warn(this.ToString());
        }

		/// <returns>Reference to the operation</returns>
		public IOperation ShowCycleBeginFormOp()
		{
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.ShowFormAtCycleBeginning;
			this.waterMeters = TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters;
			return this;
		}

		/// <returns>Reference to the operation</returns>
		public IOperation ShowCycleEndFormOp()
		{
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.ShowFormAtCycleEnd;
			this.waterMeters = TBF.BenchControl.Sequences.ProcessData.BatchRslts.Batch.WaterMeters;
			return this;
		}

        /// <returns>Reference to the operation</returns>
        public IOperation ShowTestStartFormOp(IRegReader[] regReaders)
        {
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.EnterTestStartStates;
			this.regReaders = regReaders;
			return this;
		}

		/// <returns>Reference to the operation</returns>
		public IOperation ShowTestEndFormOp(IRegReader[] regReaders, double refVolume, double errLimLo, double errLimHi)
		{
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.EnterTestEndStates;
			this.regReaders = regReaders;
			this.refVolume = refVolume;
			this.errLimLo = errLimLo;
			this.errLimHi = errLimHi;
			return this;
		}

        delegate void EntryFormDlgt(EntryForm myRef);
        /// 
        void OnCycleStart(EntryForm myRef)
        {
            if (entryFormCfg.ProductionTracing)
            {
                myRef.modelessDlg = new FormForMechanicalMetersWithTracing(waterMeters, entryFormCfg.MaxWMsCount, entryFormCfg.CloseButton, false);
            }
            else
            {
                myRef.modelessDlg = new FormForMechanicalMeters(waterMeters);
            }
            modelessDlg.Show();
        }
        /// 
        void OnCycleEnd(EntryForm myRef)
        {
            if (entryFormCfg.ProductionTracing)
            {
                myRef.modelessDlg = new FormForMechanicalMetersWithTracing(waterMeters, entryFormCfg.MaxWMsCount, entryFormCfg.CloseButton, true);
            }
            else
            {
                myRef.modelessDlg = new FormForMechanicalMeters(waterMeters);
            }
            modelessDlg.Show();
        }
		///
		void OpenTestStartStatesDlg(EntryForm myRef)
		{
			myRef.modelessDlg = new TestStartEndForm(Config.Data.WMsCount, myRef.regReaders, disabled);
			modelessDlg.Show();
		}
		///
		void OpenTestEndStatesDlg(EntryForm myRef)
		{
			myRef.modelessDlg = new TestStartEndForm(Config.Data.WMsCount, myRef.regReaders, wmStartStateStr, disabled, refVolume, errLimLo, errLimHi);
			modelessDlg.Show();
		}

		/// <summary>Start this operation</summary>
		public void Start()
		{
			resultSaved = false;
			switch (currentOp)
            {
                default:
                case CurrentOp.ShowFormAtCycleBeginning:
                    Program.MainWnd.Invoke(new EntryFormDlgt(OnCycleStart), this);
					return;

                case CurrentOp.ShowFormAtCycleEnd:
                    Program.MainWnd.Invoke(new EntryFormDlgt(OnCycleEnd), this);
                    break;
				
                case CurrentOp.EnterTestStartStates:
					Program.MainWnd.Invoke(new EntryFormDlgt(OpenTestStartStatesDlg), this);
					break;

				case CurrentOp.EnterTestEndStates:
					Program.MainWnd.Invoke(new EntryFormDlgt(OpenTestEndStatesDlg), this);
					break;
			}
		}

		/// <summary>Run this operation</summary>
		/// <returns>Event.ResultsPrinted</returns>
		public Event Run()
		{
			if ((modelessDlg is IHasCompleted) && !(modelessDlg as IHasCompleted).Completed)
			{
				return Event.ModelessFormIsOpen;
			}

			if (!resultSaved)		/// This is to save the result only once
			{
                if (currentOp == CurrentOp.ShowFormAtCycleBeginning)
                {
                    ICycleBeginOrEndForm dlg = (modelessDlg as ICycleBeginOrEndForm);
                    if (dlg != null)
                    {
                        for (int i = 0; i < waterMeters.Count; i++)
                        {
                            if (waterMeters[i] != null)
                            {
                                waterMeters[i].Disabled = disabled[i] = dlg.Disabled[i];
                                waterMeters[i].SerialNr = dlg.BodyNrText[i];
                            }
                        }
                    }
                }
				else if (currentOp == CurrentOp.ShowFormAtCycleEnd)
				{
                    ICycleBeginOrEndForm dlg = (modelessDlg as ICycleBeginOrEndForm);
                    if (dlg != null)
                    {
                        for (int i = 0; i < waterMeters.Count; i++)
                        {
                            if (waterMeters[i] != null)
                            {
                                waterMeters[i].Disabled = disabled[i] = dlg.Disabled[i];
                                waterMeters[i].SerialNr = dlg.BodyNrText[i];
#if ORACLE_DB
                                waterMeters[i].AssignedSerialNr = dlg.AssignedSerialNr[i];
                                waterMeters[i].Prefix = dlg.Prefix;
                                waterMeters[i].Suffix = dlg.Suffix;
                                waterMeters[i].CompleteSerialNr = dlg.CompleteSerialNr[i];
#endif
                                if (dlg.PurchaseOrder != null) waterMeters[i].PurchaseOrder = dlg.PurchaseOrder;
                            }
                        }
                    }
				}
                else if ((modelessDlg is TestStartEndForm) && (currentOp == CurrentOp.EnterTestStartStates))
				{
                    /// Fixed start test - start
					TestStartEndForm dlg = (modelessDlg as TestStartEndForm);
                    if (dlg != null)
                    {
                        for (int i = 0; i < dlg.WaterMetersCount; i++)
                        {
							if (!(((i < disabled.Length) && disabled[i]) || ((i < regReaders.Length) && (regReaders[i] == null))))
							{
	                            wmStartState[i] = dlg.WMStartState[i];
		                        wmStartStateStr[i] = dlg.WMStartStateStr[i];
							}
                        }
                    }
                }
                else if ((modelessDlg is TestStartEndForm) && (currentOp == CurrentOp.EnterTestEndStates))
                {
                    /// Fixed start test - end
                    TestStartEndForm dlg = (modelessDlg as TestStartEndForm);
                    if (dlg != null)
                    {
                        for (int i = 0; i < dlg.WaterMetersCount; i++)
                        {
							if (!(((i < disabled.Length) && disabled[i]) || ((i < regReaders.Length) && (regReaders[i] == null))))
							{
								wmEndState[i] = dlg.WMEndState[i];
							}
                        }
                    }
                }
                resultSaved = true;
				modelessDlg = null;
			}

			return Event.ModelessFormClosed;		/// Form closed
		}

		/// <summary>Stop this operation</summary>
		public void Stop()
		{
			if (modelessDlg is IHasCompleted)
			{
				UiBridge.Bridge.OnCloseModelessForm(this, null);
				modelessDlg = null;
			}
			currentOp = CurrentOp.None;
		}
	}
}