using System.Collections.Generic;
using System.Globalization;
using System.Windows.Forms;
using log4net;
using TBF.BenchControl;
using TBF.BenchControl.GenericDevices;
using TBF.Resources;

namespace TBF.UiControls
{
	public class PathsMetersCtrl : BaseWithListViewEx<Entities.MetersPath>, ITabWithListViewEx
	{
		static readonly ILog log = LogManager.GetLogger(typeof(PathsMetersCtrl));

		/// <summary>
		/// Fixed ListViewEx columns
		/// </summary>
		enum Column
		{
			Name,
			Qfrom,
			Qto,
			FixedColumnsCount,
		}
		readonly int fixedColumnsCount = (int)Column.FixedColumnsCount;

		PathsDlg parent;
		Control parentControl;
		Control[] editors;

		public PathsMetersCtrl()
			: base()
		{
		}

		public void Initialize(PathsDlg parent, Control parentControl)
		{
            this.parent = parent;
			this.parentControl = parentControl;

			/// Load the paths
			MyItems = parent.Session
				.CreateQuery("FROM MetersPath ORDER BY ItemNr")
				.List<Entities.MetersPath>();

			SubItemClicked += new SubItemEventHandler(listViewEx_SubItemClicked);
			SubItemEndEditing += new SubItemEndEditingEventHandler(listViewEx_SubItemEndEditing);

			IList<IRegisterReader> readers = new List<IRegisterReader>();
			foreach (var cmpnt in parent.TbfComponents)
			{
				if (cmpnt is IRegisterReader) readers.Add(cmpnt as IRegisterReader);
			}

			/// ListViewEx columns
            TBF.LocalSettings ls = Program.LocalSettings;
            Columns.Add(Strings.Name,       (ls.MetersColumnCount > 0) ? ls.MetersColumnWidths[0] : 60 * parent.Dpi / PathsDlg.Dpi100pct);
            Columns.Add(Strings.Q_from_m3h, (ls.MetersColumnCount > 1) ? ls.MetersColumnWidths[1] : 50 * parent.Dpi / PathsDlg.Dpi100pct);
            Columns.Add(Strings.Q_to_m3h,   (ls.MetersColumnCount > 2) ? ls.MetersColumnWidths[2] : 50 * parent.Dpi / PathsDlg.Dpi100pct);
            int clmn = (int)Column.FixedColumnsCount;
            for (int i = 0; i < Program.WMsCount; i++)
            {
                Columns.Add(Strings.Sensor_ + (i + 1).ToString(), (ls.MetersColumnCount > clmn) ? ls.MetersColumnWidths[clmn] : 50 * parent.Dpi / PathsDlg.Dpi100pct);
                clmn++;
            }

			/// Editors
			editors = new Control[fixedColumnsCount + Program.WMsCount];
			///				
			editors[(int)Column.Name] = new TextBox();		/// Name
			editors[(int)Column.Qfrom] = new TextBox();		/// Q_from
			editors[(int)Column.Qto] = new TextBox();		/// Q_to
			/// Prepare valve combo-boxes (max. 64 valves)
			for (int i = 0; i < Program.WMsCount; i++)
			{
				ComboBox cb = new ComboBox();
				foreach (var rr in readers) cb.Items.Add(rr.Cfg.Name);
				editors[fixedColumnsCount + i] = cb;
			}
			///
			for (int i = 0; i < editors.Length; i++) parent.Controls.Add(editors[i]);

			base.RedrawAll();
		}

		void listViewEx_SubItemClicked(object sender, SubItemEventArgs e)
		{
			if (!Unlocked || e.SubItem >= editors.Length) return;
			StartEditing(editors[e.SubItem], e.Item, e.SubItem);
		}

		void listViewEx_SubItemEndEditing(object sender, SubItemEndEditingEventArgs e)
		{
		}

		public override void DrawOne(object myItem)
		{
			Entities.MetersPath entity =(Entities.MetersPath)myItem;
			BenchControl.MetersPath path = new BenchControl.MetersPath(entity, parent.TbfComponents);

			ListViewItem lvi = new ListViewItem(entity.Name);
			lvi.SubItems.Add(path.Qfrom.ToString());
			lvi.SubItems.Add(path.Qto.ToString());

			for (int i = 0; i < Program.WMsCount; i++)
			{
				if (path.RegisterReaders != null && path.RegisterReaders[i] != null)
				{
					lvi.SubItems.Add(path.RegisterReaders[i].Cfg.Name);
				}
				else
				{
					lvi.SubItems.Add("---");
				}
			}

			lvi.Tag = entity;

			Items.Add(lvi);
		}

		public override void UpdateOne(ListViewItem lvi, object myItem)
		{
			Entities.MetersPath entity = (Entities.MetersPath)myItem;

			entity.Name = lvi.Text;

			float Qfrom;
			bool allOk = Utils.TryParseUFloat(lvi.SubItems[(int)Column.Qfrom].Text, out Qfrom);
			entity.Qfrom = Qfrom;

			float Qto;
			allOk &= Utils.TryParseUFloat(lvi.SubItems[(int)Column.Qto].Text, out Qto);
			entity.Qto = Qto;

			for (int j = 0; j < Program.WMsCount; j++)
			{
				entity.SetSensor(j, lvi.SubItems[fixedColumnsCount + j].Text);
			}
		}

		/// <summary>
		/// Update the entities and save them to the database
		/// </summary>
		public new void OkBtnClicked()
		{
			base.OkBtnClicked();

            /// Update the database
            foreach (var entity in ToBeRemovedItems)
			{
				FluentCommon.DeleteFromDb(parent.Session, entity);
			}
			foreach (var entity in MyItems)
			{
				FluentCommon.SaveToDb(parent.Session, entity);
			}

            /// Update the column widths
            Program.LocalSettings.MetersColumnWidths = new int[Columns.Count];
            for (int i = 0; i < Columns.Count; i++)
            {
                Program.LocalSettings.MetersColumnWidths[i] = Columns[i].Width;
            }
            Program.LocalSettings.Save();
        }

		public void AddOne()
		{
			/// Find an unused test name
			string newName;
			for (int nameId = 1; true; nameId++)
			{
				newName = Strings.New_sensors_path_name + nameId.ToString();
				bool notUsed = true;
				foreach (var t in MyItems) if (t.Name.Equals(newName)) notUsed = false;
				if (notUsed) break;
			}

			Entities.MetersPath entity = new Entities.MetersPath(new BenchControl.MetersPath(newName, MyItems.Count));

			base.AddOne(entity);
		}

		public new void RemoveSelected()
		{
			bool lastOneRemoved = base.RemoveSelected();
			if (lastOneRemoved && parent != null)
			{
				parent.UpdateButtonStates(SharedButtons.SelectedItemPos.None);
			}
		}
	}
}