///
/// Copyright (c) 2019 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Windows.Forms;
using log4net;
using Config.Entities;
using Common.Forms;
using TBF.Resources;
using TBF.UI.Shared;

namespace TBF.UI.Bench.Uncertainties
{
	public partial class UncertntDlgPressMeterTab : UserControl, IUncetaintiesDlgTab
	{
		static readonly ILog log = LogManager.GetLogger(typeof(UncertntDlgPressMeterTab));

		/// <summary>
		/// Component entity that has a list of 'measurement-correction' pairs
		/// to be updated in the database on OK.
		/// </summary>
		Component meterEntity;
		public Component MeterEntity
		{
			get { return meterEntity; }
			set { meterEntity = value; }
		}

		/// <summary>
		/// A list of 'measurement-correction' pairs to be deleted from the database on OK.
		/// </summary>
		public IList<Uncertainty> ToBeRemoved
		{
			get { return toBeRemoved; }
			set { toBeRemoved = value; }
		}
        IList<Uncertainty> toBeRemoved;

        UncertaintiesDlg parent;
		bool unlocked;
        Control[] textBoxes;

		public UncertntDlgPressMeterTab()
		{
			InitializeComponent();
            toBeRemoved = new List<Uncertainty>();
		}

		private void UncertntDlgPressMeterTab_Load(object sender, System.EventArgs e)
		{
			if (meterEntity == null) return;

            parent = ParentForm as UncertaintiesDlg;

			/// Panel1
            cmpntLabel.Text = Strings.Component;
            cmpntNameLabel.Text = meterEntity.Name;

			/// Panel2
            listViewEx.SubItemClicked += new SubItemEventHandler(listViewEx_SubItemClicked);
            listViewEx.SubItemEndEditing += new SubItemEndEditingEventHandler(listViewEx_SubItemEndEditing);

			listViewEx.Columns.Add(new ColumnHeader() { Text = Strings.Nr, Width = 40 });
			listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [bar]", Strings.Pressure), Width = 100 });
            listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [mbar]", Strings.Main_uncertainty), Width = 120 });
            listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [mbar]", Strings.Resolution), Width = 100 });
            listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [mbar/year]", Strings.Drift_per_year), Width = 120 });
            listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [mbar]", Strings.Conditions), Width = 100 });
            listViewEx.Columns.Add(new ColumnHeader() { Text = string.Format("{0} [mbar]", Strings.Uncertainty_of_correction), Width = 160 });

            textBoxes = new TextBox[listViewEx.Columns.Count];
            for (int i = 1; i < textBoxes.Length; i++)
            {
                this.Controls.Add(textBoxes[i] = new TextBox());
            }

			RefreshAll();
		}

		void RefreshAll()
		{
			listViewEx.Items.Clear();
            foreach (var uncrtnty in MeterEntity.Uncertainties) AddOneLVI(uncrtnty);
		}

        void AddOneLVI(Uncertainty corr)
		{
			int nr = listViewEx.Items.Count + 1;
			ListViewItem lvi = new ListViewItem(nr.ToString());
            lvi.Tag = corr;
			lvi.SubItems.Add(corr.Measurement.ToString());
            lvi.SubItems.Add((1000 * corr.MainUncertainty).ToString());
            lvi.SubItems.Add((1000 * corr.Resolution).ToString());
            lvi.SubItems.Add((1000 * corr.DriftPerYr).ToString());
            lvi.SubItems.Add((1000 * corr.Conditions).ToString());
            lvi.SubItems.Add((1000 * corr.UncertaintyOfCorrection).ToString());

			listViewEx.Items.Add(lvi);
		}

        void listViewEx_SubItemClicked(object sender, SubItemEventArgs e)
		{
            if (unlocked && (e.SubItem >= 1) && (e.SubItem < listViewEx.Columns.Count))
            {
                /// This is not the first column
                listViewEx.StartEditing(textBoxes[e.SubItem], e.Item, e.SubItem);
            }
        }

        void listViewEx_SubItemEndEditing(object sender, SubItemEndEditingEventArgs e)
		{
            if (ParseItem(e.Item, e.SubItem, e.DisplayText)) return;

            /// New value is NOK, revert the original text
			e.DisplayText = e.Item.Text;
			e.Cancel = true;
		}

        /// <summary>
        /// Parse text of a ListViewItem
        /// </summary>
        /// <returns>true = value parsed OK</returns>
        bool ParseItem(ListViewItem item, int subItem, string strValue)
        {
            Uncertainty uncrtnty = item.Tag as Uncertainty;
            double dblValue = 0;
            if ((uncrtnty != null) && Utils.TryParseEDouble(strValue, out dblValue) && (dblValue >= 0))
            {
                double inDefaultUnits = dblValue / 1000;
                switch (subItem)
                {
                    case 1:
                        uncrtnty.Measurement = (float)dblValue;
                        return true;
                    case 2:
                        uncrtnty.MainUncertainty = (float)inDefaultUnits;
                        return true;
                    case 3:
                        uncrtnty.Resolution = (float)inDefaultUnits;
                        return true;
                    case 4:
                        uncrtnty.DriftPerYr = (float)inDefaultUnits;
                        return true;
                    case 5:
                        uncrtnty.Conditions = (float)inDefaultUnits;
                        return true;
                    case 6:
                        uncrtnty.UncertaintyOfCorrection = (float)inDefaultUnits;
                        return true;
                    default:
                        return false;
                }
            }
            else
            {
                return false;
            }
        }

		public void Unlock()
		{
			unlocked = true;

            if (listViewEx.SelectedItems.Count == 1)
            {
                int ix = listViewEx.SelectedIndices[0];
                listViewEx.Focus();
                listViewEx.Items[ix].Selected = true;
                listViewEx.Items[ix].EnsureVisible();
            }
        }

		public void OkBtnClicked()
		{
		}

		public void CancelBtnClicked()
		{
		}

		public void AddOne()
		{
            Uncertainty uncrtnty = new Uncertainty();
            MeterEntity.Uncertainties.Add(uncrtnty);
			AddOneLVI(uncrtnty);

            listViewEx.Focus();
            listViewEx.SelectedItems.Clear();
            listViewEx.Items[listViewEx.Items.Count - 1].Selected = true;
            listViewEx.Items[listViewEx.Items.Count - 1].EnsureVisible();
        }

		public void RemoveSelected()
		{
            if (listViewEx.SelectedItems.Count != 1) return;

            int removeItemNr = listViewEx.SelectedIndices[0];

            Uncertainty selected =
                (Uncertainty)listViewEx.SelectedItems[0].Tag;
            if (selected.Id != 0) toBeRemoved.Add(selected);
            MeterEntity.Corrections.RemoveAt(removeItemNr);
            RefreshAll();

            if (removeItemNr < listViewEx.Items.Count)
            {
                listViewEx.Focus();
                listViewEx.Items[removeItemNr].Selected = true;
                listViewEx.Items[removeItemNr].EnsureVisible();
            }
            else
            {
                parent.UpdateButtonStates(SharedButtons.SelectedItemPos.None);
            }
        }

		public void MoveUpSelected()
		{
		}

		public void MoveDownSelected()
		{
		}

		/// <summary>
		/// Event handler that indicates the selected item position
		/// and updates 'Remove', 'Up' and 'Down' buttons in the parent dialog.
		/// </summary>
		private void listViewEx_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (listViewEx.SelectedItems.Count != 1)
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.None);
			}
			else if (listViewEx.Items.Count == 1)
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.FirstAndLast);
			}
			else if (listViewEx.SelectedIndices[0] == 0)
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.First);
			}
			else if (listViewEx.SelectedIndices[0] == (listViewEx.Items.Count - 1))
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.Last);
			}
			else
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.Middle);
			}
		}

		public string GetWarningsBeforeSaving(ref Dictionary<string, string> renmInfo)
		{
			return string.Empty;
		}

		public void UpdateRelatedItems(Dictionary<string, string> renameInfo)
        {
        }
    }
}