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

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

        readonly EntryFormCfg entryFormCfg;

		/// <summary>
		/// Water meter serial numbers set by forms
		/// </summary>
        string[] serialNr;
        public string SerialNr(int wmNr)
        {
            if (serialNr == null || serialNr.Length <= wmNr) return string.Empty;
            return serialNr[wmNr];
        }


        /// <summary>
        /// Water meter states set by forms
        /// </summary>
        float[] wmState;
        public float WMState(int wmNr)
        {
            if (wmState == null || wmState.Length <= wmNr) return 0;
            return wmState[wmNr];
        }


        /// <summary> Not supported </summary>
        public void UpdateTestResults(IList<IWaterMeter> waterMeters, IList<Entities.TestResult> results)
        {
        }


        System.Windows.Forms.Form modelessDlg;

		bool resultSaved;

		public enum CurrentOp
		{
			None,
			EnterWMSNsAndStates,
			EnterWMStates,
		}

		CurrentOp currentOp;


		public EntryForm(EntryFormCfg cfg)
            : base(cfg)
		{
            entryFormCfg = cfg;
            serialNr = new string[Program.WMsCount];
            wmState = new float[Program.WMsCount];
			currentOp = CurrentOp.None;
            log.Debug(this.ToString());
        }

        /// <returns>Reference to the operation</returns>
        public IOperation ShowCycleBeginFormOp(IList<IWaterMeter> waterMeters)
        {
            return null;
        }

        /// <returns>Reference to the operation</returns>
        public IOperation ShowCycleEndFormOp(IList<IWaterMeter> waterMeters)
        {
            return null;
        }

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

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

        delegate void EntryFormDlgt(EntryForm myRef);
        /// 
        void OpenBeginningDlg(EntryForm myRef)
        {
            myRef.modelessDlg = new WMSNsAndStatesForm(Program.WMsCount);
            modelessDlg.Show();
        }
        /// 
        void OpenEndDlg(EntryForm myRef)
        {
            myRef.modelessDlg = new WMStatesForm(Program.WMsCount);
            modelessDlg.Show();
        }

		/// <summary>Start this operation</summary>
		public void Start()
		{
			resultSaved = false;
			switch (currentOp)
            {
                case CurrentOp.EnterWMSNsAndStates:
                    Program.MainWnd.Invoke(new EntryFormDlgt(OpenBeginningDlg), this);
                    break;
                case CurrentOp.EnterWMStates:
					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 WMSNsAndStatesForm)
				{
					WMSNsAndStatesForm dlg = (modelessDlg as WMSNsAndStatesForm);

                    if (dlg.WaterMetersCount > 0) wmState[0] = dlg.WMState[0];
                    if (dlg.WaterMetersCount > 1) wmState[1] = dlg.WMState[1];
                    if (dlg.WaterMetersCount > 2) wmState[2] = dlg.WMState[2];
                    if (dlg.WaterMetersCount > 3) wmState[3] = dlg.WMState[3];
                    if (dlg.WaterMetersCount > 4) wmState[4] = dlg.WMState[4];
                    if (dlg.WaterMetersCount > 5) wmState[5] = dlg.WMState[5];

                    if (dlg.WaterMetersCount > 0) serialNr[0] = dlg.SNText[0];
                    if (dlg.WaterMetersCount > 1) serialNr[1] = dlg.SNText[1];
                    if (dlg.WaterMetersCount > 2) serialNr[2] = dlg.SNText[2];
                    if (dlg.WaterMetersCount > 3) serialNr[3] = dlg.SNText[3];
                    if (dlg.WaterMetersCount > 4) serialNr[4] = dlg.SNText[4];
                    if (dlg.WaterMetersCount > 5) serialNr[5] = dlg.SNText[5];
				}
				else if (modelessDlg is WMStatesForm)
				{
					WMStatesForm dlg = (modelessDlg as WMStatesForm);

					if (dlg.WaterMetersCount > 0) wmState[0] = dlg.WMState[0];
                    if (dlg.WaterMetersCount > 1) wmState[1] = dlg.WMState[1];
                    if (dlg.WaterMetersCount > 2) wmState[2] = dlg.WMState[2];
                    if (dlg.WaterMetersCount > 3) wmState[3] = dlg.WMState[3];
                    if (dlg.WaterMetersCount > 4) wmState[4] = dlg.WMState[4];
                    if (dlg.WaterMetersCount > 5) wmState[5] = dlg.WMState[5];
				}
				resultSaved = true;
			}

			return Event.ModelessFormClosed;		/// Form closed
		}

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