MARKUS

using MarkupToPDF.Common;

using MarkupToPDF.Controls.Common;

using MarkupToPDF.Controls.Line;

using MarkupToPDF.Controls.Polygon;

using MarkupToPDF.Controls.Shape;

using MarkupToPDF.Controls.Text;

using MarkupToPDF.Controls.Etc;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Media;

using MarkupToPDF.Controls.Cad;

using KCOM.Common;

using KCOM.Controls;

using MarkupToPDF.Controls.Parsing;

namespace KCOM.Events

{

    public class UndoCommand

    {

        private static readonly UndoCommand _instance = new UndoCommand();

        // Explicit static constructor to tell C# compiler

        // not to mark type as beforefieldinit

        static UndoCommand()

        {

        }

        private UndoCommand()

        {

        }

        public static UndoCommand Instance

        {

            get

            {

                return _instance;

            }

        }

        /// <summary>

        /// push undo data

        /// </summary>

        /// <author>humkyung</author>

        /// <date>2019.06.14, 2024.04.26</date>

        /// <param name="comments"></param>

        public void Push(EventType _EventType, ICollection<CommentUserInfo> comments)

        {

            UndoDataGroup UndoData = new UndoDataGroup()

            {

                IsUndo = false,

                Event = _EventType,

                EventTime = DateTime.Now,

                MarkupDataColl = new List<UndoData>(),

            };

            foreach (var comment in comments)

            {

                UndoData _UndoData = new UndoData()

                {

                    Markup = comment

                };

                _UndoData.Clone = comment.Clone();

                UndoData.MarkupDataColl.Add(_UndoData);

                if (_EventType == EventType.Delete)

                {

                    ViewerDataModel.Instance.MarkupControls_USER.Remove(comment);

                    ViewerDataModel.Instance.MarkupControls.Remove(comment);

                    var Item_ = ViewerDataModel.Instance.MyMarkupList.Find(d => d.ID == comment.CommentID);

                    ViewerDataModel.Instance.MyMarkupList.Remove(Item_);

                    ViewerDataModel.Instance.SystemMain.dzMainMenu.pageNavigator.MarkupListUpdate(

                        null, EventType.Delete, MarkupParser.MarkupToString(_UndoData.Markup, App.ViewInfo.UserID).CommentID, null);

                }

                else

                {

                    ViewerDataModel.Instance.SystemMain.dzMainMenu.pageNavigator.MarkupListUpdate(

                        MarkupParser.MarkupToString(_UndoData.Markup, App.ViewInfo.UserID), EventType.Operation, null, null);

                }

            }

            ViewerDataModel.Instance.UndoDataList.Where(data => data.IsUndo).ToList().ForEach(i =>

            {

                ViewerDataModel.Instance.UndoDataList.Remove(i);

            });

            ViewerDataModel.Instance.UndoDataList.Add(UndoData);

        }

        /// <summary>

        /// undo 실행

        /// </summary>

        public void Execute()

        {

            AdornerFinal final;

            SelectionSet.Instance.UnSelect(Common.ViewerDataModel.Instance.SystemMain.dzMainMenu);

            UndoDataGroup undo = ViewerDataModel.Instance.UndoDataList.Where(data => !data.IsUndo).ToList()

                .OrderByDescending(order => order.EventTime).FirstOrDefault();

            if (undo == null) return;

            switch (undo.Event)

            {

                case (EventType.Create):

                    {

                        foreach (var item in undo.MarkupDataColl)

                        {

                            ViewerDataModel.Instance.MarkupControls_USER.Remove((item.Markup));

                            ViewerDataModel.Instance.SystemMain.dzMainMenu.pageNavigator.MarkupListUpdate(

                            null, EventType.Delete, item.Markup.CommentID, null);

                        }

                    }

                    break;

                case (EventType.Delete):

                    {

                        List<CommentUserInfo> comments = new List<CommentUserInfo>();

                        foreach (var item in undo.MarkupDataColl)

                        {

                            item.Markup.Load();

                            item.Markup.UpdateControl();

                            comments.Add(item.Markup);

                        }

                        var adorner = new AdornerFinal(comments);

                        Common.ViewerDataModel.Instance.SystemMain.dzMainMenu.SelectLayer.Children.Add(adorner);

                        ///SelectionSet.Instance.UnSelect(Common.ViewerDataModel.Instance.SystemMain.dzMainMenu);

                    }

                    break;

                case (EventType.Operation):

                    {

                        List<CommentUserInfo> comment = new List<CommentUserInfo>();

                        foreach (var item in undo.MarkupDataColl)

                        {

                            ViewerDataModel.Instance.MarkupControls_USER.Remove(item.Markup);

                            var tmp = item.Markup.Clone();

                            item.Markup.Copy(item.Clone);

                            item.Clone.Copy(tmp);

                            item.Markup.UpdateControl();

                            comment.Add(item.Markup);

                        }

                        var adoner = new AdornerFinal(comment);

                        Common.ViewerDataModel.Instance.SystemMain.dzMainMenu.SelectLayer.Children.Add(adoner);

                        ///SelectionSet.Instance.UnSelect(Common.ViewerDataModel.Instance.SystemMain.dzMainMenu);

                    }

                    break;

            }

            ViewerDataModel.Instance.UndoDataList.Where(data => data.EventTime == undo.EventTime).ToList()

                .OrderByDescending(order => order.EventTime).ToList().ForEach(i =>

            {

                i.IsUndo = true;

            });

        }

    }

}