using System;
using System.Collections.Generic;
using log4net;
using TBF.BenchControl;
using TBF.BenchControl.GenericDevices;

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

        readonly EntryFormCfg entryFormCfg;

		/// <summary>
		/// Properties set by the Begin and the End form
		/// </summary>
		public string MainBeginStateText { get { return mainBeginStateText; } }
		string mainBeginStateText;

        public string AuxBeginStateText { get { return auxBeginStateText; } }
		string auxBeginStateText;

        public string ProtocolTitle { get { return protocolTitle; } }
		string protocolTitle;

        /// <summary> Not supported in Munich  </summary>
        public string SerialNr(int wmNr) { return string.Empty; }

        /// <summary> Not supported in Munich  </summary>
        public float WMState(int wmNr) { return 0; }


        System.Windows.Forms.Form modelessDlg;

		bool resultSaved;

		IList<IWaterMeter> waterMeters;

		public enum CurrentOp
		{
			None,
			ShowFormAtCycleBeginning,
			ShowFormAtCycleEnd,
		}

		CurrentOp currentOp;


        public EntryForm(EntryFormCfg cfg)
            : base(cfg)
        {
            entryFormCfg = cfg;
            currentOp = CurrentOp.None;
            log.Debug(this.ToString());
        }

		/// <returns>Reference to the operation</returns>
		public IOperation ShowCycleBeginFormOp(IList<IWaterMeter> waterMeters)
		{
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.ShowFormAtCycleBeginning;
			this.waterMeters = waterMeters;
			return this;
		}

		/// <returns>Reference to the operation</returns>
		public IOperation ShowCycleEndFormOp(IList<IWaterMeter> waterMeters)
		{
			if (currentOp != CurrentOp.None) throw new Exception("Sequence error");
			currentOp = CurrentOp.ShowFormAtCycleEnd;
			this.waterMeters = waterMeters;
			return this;
		}

        /// <returns>Reference to the operation</returns>
        public IOperation ShowWMSNsAndStatesFormOp()
        {
            return null;
        }

        /// <returns>Reference to the operation</returns>
        public IOperation ShowWMStatesFormOp()
        {
            return null;
        }

        delegate void EntryFormDlgt(EntryForm myRef);
        /// 
        void OpenBeginningDlg(EntryForm myRef)
        {
            myRef.modelessDlg = new CycleBeginningForm();
            modelessDlg.Show();
        }
        /// 
        void OpenEndDlg(EntryForm myRef)
        {
			CycleEndForm endForm = new CycleEndForm();
			endForm.ProtocolName1 = entryFormCfg.ProtocolTitle1;
			endForm.ProtocolName2 = entryFormCfg.ProtocolTitle2;
			endForm.ProtocolName3 = entryFormCfg.ProtocolTitle3;
			myRef.modelessDlg = endForm;
            modelessDlg.Show();
        }

		/// <summary>Start this operation</summary>
		public void Start()
		{
			resultSaved = false;
			switch (currentOp)
            {
                case CurrentOp.ShowFormAtCycleBeginning:
                    Program.MainWnd.Invoke(new EntryFormDlgt(OpenBeginningDlg), this);
                    break;
                case CurrentOp.ShowFormAtCycleEnd:
					Program.MainWnd.Invoke(new EntryFormDlgt(OpenEndDlg), this);
                    break;
            }
		}

		/// <summary>Run this operation</summary>
		/// <returns>Event.ResultsPrinted</returns>
		public Event Run()
		{
			if (!(modelessDlg as IHasCompleted).Completed)
			{
				return Event.None;	/// Return 'None' when form was not closed yet
			}

			if (!resultSaved)		/// This is to save the result only once
			{
				if (modelessDlg is CycleBeginningForm)
				{
					if (waterMeters.Count >= 1 && waterMeters[0] != null)
					{
						mainBeginStateText = (modelessDlg as CycleBeginningForm).MainStateText;
						waterMeters[0].SerialNr = (modelessDlg as CycleBeginningForm).MainSNText;
					}
					if (waterMeters.Count >= 2 && waterMeters[1] != null)
					{
						auxBeginStateText = (modelessDlg as CycleBeginningForm).AuxStateText;
						waterMeters[1].SerialNr = (modelessDlg as CycleBeginningForm).AuxSNText;
					}
				}
				else
				{
					if (waterMeters.Count >= 1 && waterMeters[0] != null)
					{
						waterMeters[0].EndState = (modelessDlg as CycleEndForm).MainStateText;
					}
					if (waterMeters.Count >= 2 && waterMeters[1] != null)
					{
						waterMeters[1].EndState = (modelessDlg as CycleEndForm).AuxStateText;
					}
					protocolTitle = (modelessDlg as CycleEndForm).ProtocolTitle;
				}
				resultSaved = true;
			}

			return Event.ModelessFormClosed;		/// Form closed
		}

		/// <summary>Stop this operation</summary>
		public void Stop()
		{
            modelessDlg = null;
			currentOp = CurrentOp.None;
		}

        /// <summary>
        /// Updates test results with the information collected in watermeters.
        /// </summary>
        /// <param name="waterMeters">Watermetes with information entered in the forms</param>
        /// <param name="results">Test results to be updated with the information</param>
        public void UpdateTestResults(IList<IWaterMeter> waterMeters, IList<Entities.TestResult> results)
        {
            foreach (var test in results)
            {
                if (test.MetersKind != Entities.MetersKind.Combined) continue;

                /// Todo: Generalize !!! Now implemented for Munich = one combined meter.
                test.Meters[0].SerialNr = waterMeters[0].SerialNr;
                test.Meters[0].EndState = waterMeters[0].EndState;
                test.Meters[1].SerialNr = waterMeters[1].SerialNr;
                test.Meters[1].EndState = waterMeters[1].EndState;
            }
        }
    }
}