///
/// Copyright (c) 2013-2021 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Globalization;
using System.Windows.Forms;
using log4net;
using Config.Entities;
using Common.Forms;
using TBF.Rig.GenericDevices;
using TBF.Resources;
using TBF.UI.Shared;

namespace TBF.UI.Bench.Paths
{
	public class PathsFeedingCtrl : BaseWithListViewEx<Config.Entities.FeedingPath>, ITabWithListViewEx
	{
		static readonly ILog log = LogManager.GetLogger(typeof(PathsFeedingCtrl));

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

		PathsDlg parent;
		Control parentControl;
		Control[] editors;

		public PathsFeedingCtrl()
			: base()
		{
			FixedRowsCount = 1;
		}

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

			/// Load the paths
            MyItems = parent.Session.QueryOver<FeedingPath>()
                                    .OrderBy(x => x.ItemNr).Asc
                                    .List();

            foreach (var path in MyItems) path.OriName = path.Name;

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

			/// ListViewEx columns
            TBF.LocalSettings ls = Program.LocalSettings;
            Columns.Add(Strings.Name, (ls.FeedingColumnCount > 0) ? ls.FeedingColumnWidths[0] : 60 * parent.Dpi / Constants.Dpi100pct);
            Columns.Add(string.Format("{0} [m3/h]", Strings.Q_from), (ls.FeedingColumnCount > 1) ? ls.FeedingColumnWidths[1] : 80 * parent.Dpi / Constants.Dpi100pct);
            Columns.Add(string.Format("{0} [m3/h]", Strings.Q_to), (ls.FeedingColumnCount > 2) ? ls.FeedingColumnWidths[2] : 80 * parent.Dpi / Constants.Dpi100pct);
            Columns.Add("Selector", (ls.FeedingColumnCount > 0) ? ls.FeedingColumnWidths[0] : 60 * parent.Dpi / Constants.Dpi100pct);
            Columns.Add(Strings.Pump, (ls.FeedingColumnCount > 3) ? ls.FeedingColumnWidths[3] : 60 * parent.Dpi / Constants.Dpi100pct);
            int clmn = (int)Column.FixedColumnsCount;

            foreach (var rv in parent.FeedingRegulValves)
            {
                Columns.Add(rv.Cfg.Name, (ls.FeedingColumnCount > clmn) ? ls.FeedingColumnWidths[clmn] : 50 * parent.Dpi / Constants.Dpi100pct);
                clmn++;
            }
            regvCount = clmn - (int)Column.FixedColumnsCount;

            foreach (var vlv in parent.Valves)
            {
                if (vlv.Category == TBF.Rig.ValveCategory.Feeding)
                {
                    Columns.Add(vlv.Cfg.Name, (ls.FeedingColumnCount > clmn) ? ls.FeedingColumnWidths[clmn] : 50 * parent.Dpi / Constants.Dpi100pct);
                    clmn++;
                }
            }
            valvesCount = clmn - (int)Column.FixedColumnsCount - regvCount;

			/// Pump
			ComboBox pumpCBox = new ComboBox();
			pumpCBox.Items.Add("---");
			foreach (var cmpnt in parent.TbfComponents)
			{
				if (cmpnt is IPump) pumpCBox.Items.Add(cmpnt.Cfg.Name);
			}

            editors = new Control[fixedColumnsCount + regvCount + 64];
			///				
			editors[(int)Column.Name] = new TextBox();		/// Name
			editors[(int)Column.Qfrom] = new TextBox();		/// Q_from
			editors[(int)Column.Qto] = new TextBox();		/// Q_to
            editors[(int)Column.Selector] = new TextBox();  /// Selector
            editors[(int)Column.Pump] = pumpCBox;
            for (int i = 0; i < regvCount; i++)
            {
                ComboBox cb = new ComboBox();
                cb.Items.Add("---");
                cb.Items.Add("0");
                cb.Items.Add("25");
                cb.Items.Add("50");
                cb.Items.Add("75");
                cb.Items.Add("100");
                editors[fixedColumnsCount + i] = cb;
            }

            /// Prepare valve combo-boxes (max. 64 valves)
			for (int i = 0; i < 64; i++)
			{
				ComboBox cb = new ComboBox();
				cb.Items.Add("---");
				cb.Items.Add(Strings.open);
				cb.Items.Add(Strings.close);
                editors[fixedColumnsCount + regvCount + i] = cb;
			}
			///
            for (int i = 0; i < editors.Length; i++)
            {
                editors[i].Visible = false;
                parent.Controls.Add(editors[i]);
            }

			base.RedrawAll();
		}

        void listViewEx_SubItemClicked(object sender, SubItemEventArgs e)
		{
			if (!Unlocked || e.SubItem >= editors.Length) return;
			if ((e.Item.Tag is IHasItemNr) &&
				((e.Item.Tag as IHasItemNr).ItemNr < FixedRowsCount) &&
				(e.SubItem < fixedColumnsCount))
			{
				return;
			}
			StartEditing(editors[e.SubItem], e.Item, e.SubItem);
		}

        void listViewEx_SubItemRightClicked(object sender, SubItemEventArgs e)
        {
            if (!Unlocked || e.SubItem >= editors.Length) return;

            if (DialogResult.Yes == MessageBox.Show(Strings.Do_you_want_to_copy_this_value_to_all_cells_below_this_cell,
                                                    Strings.Confirmation, MessageBoxButtons.YesNo, MessageBoxIcon.Question))
            {
                int columnNr = e.SubItem;
                string value = null;
                Color backColor = Color.White;
                foreach (ListViewItem item in Items)
                {
                    if (value != null && item.SubItems.Count > columnNr)
                    {
                        item.SubItems[columnNr].Text = value;
                        item.SubItems[columnNr].BackColor = backColor;
                    }
                    else if (item == e.Item)
                    {
                        value = item.SubItems[columnNr].Text;
                        backColor = item.SubItems[columnNr].BackColor;
                    }
                }
            }
        }

        void listViewEx_SubItemEndEditing(object sender, SubItemEndEditingEventArgs e)
		{
            if (e.SubItem >= fixedColumnsCount + regvCount)
            {
                e.Item.SubItems[e.SubItem].BackColor = (e.DisplayText == Strings.open) ? Color.LightGray : Color.White;
            }
        }

		public override void DrawOne(object myItem)
		{
			Config.Entities.FeedingPath entity = (Config.Entities.FeedingPath)myItem;
			Rig.FeedingPath path = new Rig.FeedingPath(entity, parent.TbfComponents);

			ListViewItem lvi = new ListViewItem(entity.Name);
            lvi.UseItemStyleForSubItems = false;

            lvi.SubItems.Add(path.Qfrom.ToString());
			lvi.SubItems.Add(path.Qto.ToString());
            lvi.SubItems.Add(path.Selector);
			lvi.SubItems.Add(path.Pump != null ? path.Pump.Cfg.Name : "---");

            string[] rvPosStr = (entity.RegulValvesPct != null) ? entity.RegulValvesPct.Split(new char[] {';'})
                                                                : new string[0];
            for (int i = 0; i < regvCount; i++)
            {
                lvi.SubItems.Add((i < rvPosStr.Length) ? rvPosStr[i] : "---");
            }

            foreach (var valve in parent.Valves)
			{
                if (valve.Category == TBF.Rig.ValveCategory.Feeding)
                {
                    if (path.ValvesOpen != null && path.ValvesOpen.Contains(valve))
                    {
                        lvi.SubItems.Add(Strings.open);
                        lvi.SubItems[lvi.SubItems.Count - 1].BackColor = Color.LightGray;
                    }
                    else if (path.ValvesClose != null && path.ValvesClose.Contains(valve))
                    {
                        lvi.SubItems.Add(Strings.close);
                        lvi.SubItems[lvi.SubItems.Count - 1].BackColor = Color.White;
                    }
                    else
                    {
                        lvi.SubItems.Add("---");
                        lvi.SubItems[lvi.SubItems.Count - 1].BackColor = Color.White;
                    }
                }
			}

			lvi.Tag = entity;

			Items.Add(lvi);
		}

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

            entity.Selector = lvi.SubItems[(int)Column.Selector].Text;
            
            ComboBox pumpCB = editors[(int)Column.Pump] as ComboBox;
			if (pumpCB.Items.Contains(lvi.SubItems[(int)Column.Pump].Text))
			{
				entity.Pump = lvi.SubItems[(int)Column.Pump].Text.Equals("---") ? string.Empty : lvi.SubItems[(int)Column.Pump].Text;
			}

            ///
            /// Regulation valves
            ///
            string regulValvesPct = string.Empty;
            for (int i = fixedColumnsCount; i < fixedColumnsCount + regvCount; i++)
            {
                if (regulValvesPct.Length > 0) regulValvesPct += ";";
                float fdummy;
                if (lvi.SubItems[i].Text.Equals("---") ||
                    (Utils.TryParseUFloat(lvi.SubItems[i].Text, out fdummy) && (fdummy >= 0) && (fdummy <= 100.0f)))
                {
                    regulValvesPct += lvi.SubItems[i].Text;
                }
            }
            entity.RegulValvesPct = regulValvesPct;

            ///
            /// Valves
            /// 
			string valvesOpen = string.Empty;
			string valvesClose = string.Empty;
            int k = 0;
			for (int j = 0; j < parent.Valves.Count; j++)
			{
                if (parent.Valves[j].Category == TBF.Rig.ValveCategory.Feeding)
                {
                    string text = lvi.SubItems[fixedColumnsCount + regvCount + k].Text;
                    if (text.Equals(Strings.open))
                    {
                        if (valvesOpen != string.Empty) valvesOpen += ";";
                        valvesOpen += parent.Valves[j].Cfg.Name;
                    }
                    if (text.Equals(Strings.close))
                    {
                        if (valvesClose != string.Empty) valvesClose += ";";
                        valvesClose += parent.Valves[j].Cfg.Name;
                    }
                    k++;
                }
			}
			entity.ValvesOpen = valvesOpen;
			entity.ValvesClose = valvesClose;
		}

        public void AddOne()
		{
			Config.Entities.FeedingPath entity;

			if (MyItems.Count < FixedRowsCount)
			{
				entity = new Config.Entities.FeedingPath(Strings._none_, MyItems.Count);
			}
			else
			{
				/// Find an unused test name
				string newName;
				for (int nameId = 1; true; nameId++)
				{
					newName = Strings.New_feeding_path_name + nameId.ToString();
					bool notUsed = true;
					foreach (var t in MyItems) if (t.Name.Equals(newName)) notUsed = false;
					if (notUsed) break;
				}
				entity = new Config.Entities.FeedingPath(newName, MyItems.Count);
			}
			
			base.AddOne(entity);
		}

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

		public string GetWarningsBeforeSaving(ref Dictionary<string, string> renmInfo)
		{
			base.OkBtnClicked();		/// = UpdateAll()

			string warnings = string.Empty;

            foreach (var entity in ToBeRemovedItems)
            {
                if (!string.IsNullOrEmpty(entity.OriName))
                {
                    int occurances = 0;
                    foreach (var tst in parent.Tests) if (!string.IsNullOrEmpty(tst.FeedingPath) && tst.FeedingPath.Equals(entity.OriName)) occurances++;

                    if (occurances > 0)
                    {
                        warnings += string.Format(Strings._0_path_1_used_by_2_tests_will_be_removed_3, Strings.FeedingTabPageTitle, entity.Name, occurances, Environment.NewLine);
						renmInfo.Add(entity.OriName, string.Empty);
					}
                }
            }

            foreach (var entity in MyItems)
            {
                if (!string.IsNullOrEmpty(entity.OriName) && entity.OriName != entity.Name)
                {
                    int occurances = 0;
                    foreach (var tst in parent.Tests) if (!string.IsNullOrEmpty(tst.FeedingPath) && tst.FeedingPath.Equals(entity.OriName)) occurances++;

                    if (occurances > 0)
                    {
						warnings += string.Format(Strings._0_path_1_used_by_2_tests_will_be_renamed_to_3_4, Strings.FeedingTabPageTitle, entity.OriName, occurances, entity.Name, Environment.NewLine);
						renmInfo.Add(entity.OriName, entity.Name);
					}
                }
            }

			return warnings;
		}

		public void UpdateRelatedItems(Dictionary<string, string> renameInfo)
        {
			foreach (var ri in renameInfo)
			{
				var tests = parent.Session.QueryOver<Config.Entities.Test>()
										  .Where(x => x.FeedingPath == ri.Key)
										  .List();

				foreach (var t in tests)
				{
					t.FeedingPath = ri.Value;
					parent.Session.Update(t);
				}
			}
		}

        /// <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)
            {
				parent.Session.Delete(entity);
			}
            foreach (var entity in MyItems)
            {
				parent.Session.SaveOrUpdate(entity);
			}

            SaveUISettings();
        }

        void SaveUISettings()
        {
            LocalSettings ls = Program.LocalSettings;

            /// Compare list view column widths with the saved ones
            bool anyColumnDiffers = false;
            if (Columns.Count != ls.FeedingColumnCount)
            {
                anyColumnDiffers = true;
            }
            else
            {
                for (int i = 0; i < Columns.Count; i++)
                {
                    if (Columns[i].Width != ls.FeedingColumnWidths[i]) { anyColumnDiffers = true; break; }
                }
            }

            if (anyColumnDiffers)
            {
                /// Update column widths
                ls.FeedingColumnWidths = new int[Columns.Count];
                for (int i = 0; i < Columns.Count; i++)
                {
                    ls.FeedingColumnWidths[i] = Columns[i].Width;
                }

                ls.Save();
            }
        }
    }
}