using Compdfkit_Tools.Helper;
using Compdfkit_Tools.PDFControl;
using ComPDFKitViewer.PdfViewer;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace DocsEditControl
{
    public partial class MainWindow : Window, INotifyPropertyChanged
    {
        private PDFViewControl pdfViewer;
        private PDFViewControl passwordViewer;
        private PageEditControl pageEditControl = new PageEditControl();
        private CPDFBOTABarControl botaBarControl = new CPDFBOTABarControl(BOTATools.Thumbnail | BOTATools.Outline | BOTATools.Bookmark | BOTATools.Search | BOTATools.Annotation);

        public bool CanUndo
        {
            get
            {
                if (pdfViewer != null && pdfViewer.PDFView != null)
                {
                    return pdfViewer.PDFView.UndoManager.CanUndo;
                }
                return false;
            }
        }

        public bool CanRedo
        {
            get
            {
                if (pdfViewer != null && pdfViewer.PDFView != null)
                {
                    return pdfViewer.PDFView.UndoManager.CanRedo;
                }

                return false;
            }
        }

        private bool _canSave = false;
        public bool CanSave
        {
            get => _canSave;
            set
            {
                _canSave = value;
                OnPropertyChanged();
            }
        }
          
        public MainWindow()
        {
            InitializeComponent();
            LoadDefaultDocument();
        }

        #region Load document
        private void LoadDefaultDocument()
        {
            string defaultFilePath = "PDF32000_2008.pdf";
            pdfViewer = new PDFViewControl();
            pdfViewer.PDFView.InitDocument(defaultFilePath);
            LoadDocument();
        }

        private void LoadDocument()
        {
            pdfViewer.PDFView.Load();
            pdfViewer.PDFView.SetShowLink(true);

            pdfViewer.PDFView.InfoChanged -= PdfViewer_InfoChanged;
            pdfViewer.PDFView.InfoChanged += PdfViewer_InfoChanged;
            PDFGrid.Child = pageEditControl;

            pageEditControl.PDFViewControl = pdfViewer;

            pageEditControl.OnAnnotEditHandler -= PageEditControlRefreshAnnotList;
            pageEditControl.OnAnnotEditHandler += PageEditControlRefreshAnnotList;

            pageEditControl.PageMoved -= PageEditControl_PageMoved;
            pageEditControl.PageMoved += PageEditControl_PageMoved;

            PasswordUI.Closed -= PasswordUI_Closed;
            PasswordUI.Canceled -= PasswordUI_Canceled;
            PasswordUI.Confirmed -= PasswordUI_Confirmed;
            PasswordUI.Closed += PasswordUI_Closed;
            PasswordUI.Canceled += PasswordUI_Canceled;
            PasswordUI.Confirmed += PasswordUI_Confirmed;
             
            CPDFSaclingControl.InitWithPDFViewer(pdfViewer.PDFView);
            CPDFSaclingControl.SetZoomTextBoxText(string.Format("{0}", (int)(pdfViewer.PDFView.ZoomFactor * 100)));

            ViewSettingBtn.IsChecked = false;
            botaBarControl.InitWithPDFViewer(pdfViewer.PDFView);
            botaBarControl.SelectBotaTool(BOTATools.Thumbnail); 
        }

        private void PageEditControlRefreshAnnotList(object sender, EventArgs e)
        {
            botaBarControl.LoadAnnotationList();
        }

        private void PasswordUI_Confirmed(object sender, string e)
        {
            if (passwordViewer != null && passwordViewer.PDFView != null && passwordViewer.PDFView.Document != null)
            {
                passwordViewer.PDFView.Document.UnlockWithPassword(e);
                if (passwordViewer.PDFView.Document.IsLocked == false)
                {
                    PasswordUI.SetShowError("", Visibility.Collapsed);
                    PasswordUI.ClearPassword();
                    PasswordUI.Visibility = Visibility.Collapsed;
                    PopupBorder.Visibility = Visibility.Collapsed;
                    pdfViewer = passwordViewer;
                    LoadDocument();
                }
                else
                {
                    PasswordUI.SetShowError("Wrong Password", Visibility.Visible);
                }
            }
        }
         
        private void PasswordUI_Canceled(object sender, EventArgs e)
        {
            PopupBorder.Visibility = Visibility.Collapsed;
            PasswordUI.Visibility = Visibility.Collapsed;
        }

        private void PasswordUI_Closed(object sender, EventArgs e)
        {
            PopupBorder.Visibility = Visibility.Collapsed;
            PasswordUI.Visibility = Visibility.Collapsed;
        }
        #endregion


        private void PdfViewer_InfoChanged(object sender, KeyValuePair<string, object> e)
        {
            if (e.Key == "Zoom")
            {
                CPDFSaclingControl.SetZoomTextBoxText(string.Format("{0}", (int)((double)e.Value * 100)));
            }
        }

        private void PageEditControl_PageMoved(object sender, RoutedEventArgs e)
        {
            if (pdfViewer == null || pdfViewer.PDFView == null)
            {
                return;
            }
            BotaSideTool.InitWithPDFViewer(pdfViewer.PDFView);
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}