using System;
using System.Collections.Generic;
using System.Windows.Forms;
using Common;
using Config.Entities;
using log4net;
using NHibernate;
using TBF.Resources;
using TBF.Rig.Generic;

namespace TBF.Rig.Output.Printers.GroupPrinting.Single
{
    public partial class PrinterTestBenchComponentSelectorDlg : Form
    {
        static readonly ILog log = LogManager.GetLogger(typeof(PrinterTestBenchComponentSelectorDlg));
        
        /// <summary>
        /// List of components (=component configuration instances)
        /// </summary>
        IList<Component> cmpntEntities;

        public Component SelectedComponent { get; set; }

        ISession session;
       
        MySortOrder sortOrder = MySortOrder.Ascending;
        int sortColumn = -1;                        /// 0-based index of column to be used for sorting
        
        
        public PrinterTestBenchComponentSelectorDlg()
        {
            InitializeComponent();
        }
        
        private void LoadFormPosition()
        {
            LocalSettings ls = Program.LocalSettings;
            Width  = (ls.ComponentsDlgWidth > 0)  ? ls.ComponentsDlgWidth  : 850;
            Height = (ls.ComponentsDlgHeight > 0) ? ls.ComponentsDlgHeight : 500;
            Left   = (ls.ComponentsDlgLeft != 0)  ? ls.ComponentsDlgLeft   : 200;
            Top    = (ls.ComponentsDlgTop != 0)   ? ls.ComponentsDlgTop    : 100;
        }
        
        /// <summary>
        /// Save the dialog position and ListViewEx column widths
        /// </summary>
        void SaveUISettings()
        {
            /// Obtain ComponentsmanagerDlg dimensions, etc.
            bool isMaximized = (WindowState == FormWindowState.Maximized);
            int left = (WindowState == FormWindowState.Normal) ? Location.X : RestoreBounds.Left;
            int top = (WindowState == FormWindowState.Normal) ? Location.Y : RestoreBounds.Top;
            int width = (WindowState == FormWindowState.Normal) ? Size.Width : RestoreBounds.Width;
            int height = (WindowState == FormWindowState.Normal) ? Size.Height : RestoreBounds.Height;

            LocalSettings ls = Program.LocalSettings;

            /// Compare list view column widths with the saved ones
            bool anyColumnDiffers = false;
            // if ((int)Column.ColumnsCount != ls.ComponentsColumnCount)
            // {
            //     anyColumnDiffers = true;
            // }
            // else
            // {
            //     for (int i = 0; i < (int)Column.ColumnsCount; i++)
            //     {
            //         if (listViewEx.Columns[i].Width != ls.ComponentsColumnWidths[i]) { anyColumnDiffers = true; break; }
            //     }
            // }
            
            
            if (ls != null && (ls.ComponentsDlgMaximized != isMaximized ||
                               ls.ComponentsDlgLeft != left ||
                               ls.ComponentsDlgTop != top ||
                               ls.ComponentsDlgWidth != width ||
                               ls.ComponentsDlgHeight != height ||
                               anyColumnDiffers))
            {
                /// At least one ComponentsManagerDlg dimension differs => Update local settings and save them
                /// 
                ls.ComponentsDlgMaximized = isMaximized;
                ls.ComponentsDlgLeft = left;
                ls.ComponentsDlgTop = top;
                ls.ComponentsDlgWidth = width;
                ls.ComponentsDlgHeight = height;
            
                /// List view column widths
                // ls.ComponentsColumnWidths = new int[(int)Column.ColumnsCount];
                // for (int i = 0; i < (int)Column.ColumnsCount; i++)
                // {
                //     ls.ComponentsColumnWidths[i] = listViewEx.Columns[i].Width;
                // }
            
                ls.Save();
            }
        }

        private void btSelect_Click(object sender, EventArgs e)
        {
            if (listViewEx.SelectedItems.Count > 0)
            {
                SelectedComponent = cmpntEntities[listViewEx.SelectedIndices[0]];

                this.DialogResult = DialogResult.OK;
                this.Close();
            }
            else
            {
                MessageBox.Show("No Selection", "Selection", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void PrinterTestBenchComponentSelectorDlg_Load(object sender, EventArgs e)
        {
            LoadFormPosition();
            
            LocalSettings ls = Program.LocalSettings;
            listViewEx.Columns.Add(Strings.Nr,         (ls.ComponentsColumnCount > 0) ? ls.ComponentsColumnWidths[0] : 40);
            listViewEx.Columns.Add(Strings.Name,       (ls.ComponentsColumnCount > 1) ? ls.ComponentsColumnWidths[1] : 80);
            listViewEx.Columns.Add(Strings.Type,       (ls.ComponentsColumnCount > 2) ? ls.ComponentsColumnWidths[2] : 120);
            listViewEx.Columns.Add(Strings.Parent,     (ls.ComponentsColumnCount > 3) ? ls.ComponentsColumnWidths[3] : 55);
            listViewEx.Columns.Add(Strings.Parameters, (ls.ComponentsColumnCount > 6) ? ls.ComponentsColumnWidths[6] : 600);
            listViewEx.HeaderStyle = ColumnHeaderStyle.Clickable;
            
            GetEntities();

            RedrawAll();
        }

        private void GetEntities()
        {
            session = TBF.DB.CreateSession(DBKind.Config);
            IList<Component> cmpntEntitiesAll = session.QueryOver<Component>()
                .OrderBy(x => x.ItemNr).Asc
                .List<Component>();

            if (cmpntEntities == null)
            {
                cmpntEntities = new List<Component>();
            }
            else
            {
                cmpntEntities.Clear();
            }
            
            foreach (var component in cmpntEntitiesAll)
            {
                if (component.ClassName.StartsWith("Output.Printers.OnePerMeter"))
                {
                    cmpntEntities.Add(component);
                }
            }
        }

        void RedrawAll()
        {
            listViewEx.Items.Clear();
            foreach (var cmpnt in cmpntEntities) DrawOne(cmpnt);
        }
        
        void DrawOne(Component cmpnt)
        {
            ListViewItem lvi = new ListViewItem(cmpnt.ItemNr.ToString());
            lvi.Tag = cmpnt;
            lvi.SubItems.Add(cmpnt.Name);
            lvi.SubItems.Add(string.IsNullOrEmpty(cmpnt.ClassName) ? string.Empty : cmpnt.ClassName);
            lvi.SubItems.Add(string.IsNullOrEmpty(cmpnt.Parent) ? string.Empty : cmpnt.Parent);

            IComponentCfg cmpCfg = TbfComponents.CmpntCfgFromCmpntEntity(cmpnt);
            if (cmpCfg != null)
            {
                lvi.SubItems.Add(cmpCfg.ToString(-1));

            }
            else
            {
                lvi.SubItems.Add("Not a component");
            }

            listViewEx.Items.Add(lvi);
        }

        private void btCancel_Click(object sender, EventArgs e)
        {
            SaveUISettings();
            SelectedComponent = null;
            this.DialogResult = DialogResult.Cancel;
            this.Close();
        }
    }
}