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

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

        readonly EntryFormCfg entryFormCfg;

		/// <summary>
		/// Properties set by the Begin and the End form
		/// </summary>
        public string SerialNr(int wmNr) { return string.Empty; }
        public float WMState(int wmNr) { return 0; }


        System.Windows.Forms.Form modelessDlg;

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

		IList<IWaterMeter> waterMeters;	/// Passesd as an argument of ShowCycleBeginFormOp/ShowCycleEndFormOp constructor

		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(Program.WMsCount);
            modelessDlg.Show();
        }
        /// 
        void OpenEndDlg(EntryForm myRef)
        {
			myRef.modelessDlg = new CycleEndForm(Program.WMsCount);
            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 is IHasCompleted) && !(modelessDlg as IHasCompleted).Completed)
			{
				return Event.ModelessFormIsOpen;
			}

			if (!resultSaved)		/// This is to save the result only once
			{
				if (modelessDlg is CycleBeginningForm)
				{
					CycleBeginningForm dlg = (modelessDlg as CycleBeginningForm);
					int count = Math.Min(dlg.WaterMetersCount, waterMeters.Count);

					if (count > 0 && waterMeters[0] != null) { waterMeters[0].SerialNr = dlg.SNText[0]; waterMeters[0].Disabled = dlg.Disabled[0]; }
					if (count > 1 && waterMeters[1] != null) { waterMeters[1].SerialNr = dlg.SNText[1]; waterMeters[1].Disabled = dlg.Disabled[1]; }
					if (count > 2 && waterMeters[2] != null) { waterMeters[2].SerialNr = dlg.SNText[2]; waterMeters[2].Disabled = dlg.Disabled[2]; }
					if (count > 3 && waterMeters[3] != null) { waterMeters[3].SerialNr = dlg.SNText[3]; waterMeters[3].Disabled = dlg.Disabled[3]; }
					if (count > 4 && waterMeters[4] != null) { waterMeters[4].SerialNr = dlg.SNText[4]; waterMeters[4].Disabled = dlg.Disabled[4]; }
					if (count > 5 && waterMeters[5] != null) { waterMeters[5].SerialNr = dlg.SNText[5]; waterMeters[5].Disabled = dlg.Disabled[5]; }
				}
				else if (modelessDlg is CycleEndForm)
				{
					CycleEndForm dlg = (modelessDlg as CycleEndForm);
					int count = Math.Min(dlg.WaterMetersCount, waterMeters.Count);

					if (count > 0 && waterMeters[0] != null) waterMeters[0].EndState = dlg.EndStateText[0];
					if (count > 1 && waterMeters[1] != null) waterMeters[1].EndState = dlg.EndStateText[1];
					if (count > 2 && waterMeters[2] != null) waterMeters[2].EndState = dlg.EndStateText[2];
					if (count > 3 && waterMeters[3] != null) waterMeters[3].EndState = dlg.EndStateText[3];
					if (count > 4 && waterMeters[4] != null) waterMeters[4].EndState = dlg.EndStateText[4];
					if (count > 5 && waterMeters[5] != null) waterMeters[5].EndState = dlg.EndStateText[5];
				}
				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;
		}

        /// <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.Single) continue;

                int nrMtrsToUpdate = Math.Max(waterMeters.Count, test.Meters.Count);
                for (int i = 0; i < nrMtrsToUpdate; i++)
                {
                    test.Meters[i].SerialNr = waterMeters[i].SerialNr;
                    test.Meters[i].EndState = waterMeters[i].EndState;
                }
            }
        }
	}
}