using PDF_Office.CustomControl;
using PDF_Office.Helper;
using PDF_Office.ViewModels.Dialog.ConverterDialogs;
using PDF_Office.ViewModels.Dialog.HomePageToolsDialogs;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
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 PDF_Office.Views.Dialog.HomePageToolsDialogs
{
    /// <summary>
    /// MainPageExtractDialog.xaml 的交互逻辑
    /// </summary>
    public partial class HomePageExtractDialog : UserControl
    {
        public HomePageExtractDialog()
        {
            InitializeComponent();
        }

        private void PageTurningPreview_Loaded(object sender, RoutedEventArgs e)
        {
            ExtractPreview.document = ((HomePageExtractDialogViewModel)this.DataContext).document;
            char[] enumerationSeparator = new char[] { ',' };
            char[] rangeSeparator = new char[] { '-' };
            if (!CommonHelper.GetPagesInRange(ref ExtractPreview.PageIndexLists, "1-" + ExtractPreview.document.PageCount.ToString(), ExtractPreview.document.PageCount, enumerationSeparator, rangeSeparator))
            { //TODO
                Trace.WriteLine("输入不对");
                MessageBoxEx.Show("输入不对");
                return;
            }
            ExtractPreview.AwaitRenderBitmap(ExtractPreview.document);
            ExtractPreview.PageIndex.Text = ExtractPreview.document.PageCount.ToString();

        }

        private void WritableComboBox_Loaded(object sender, RoutedEventArgs e)
        {

            PageRangeComboBox.writableComboBox.SelectionChanged += PageRangeComboBox_SelectionChanged;
            PageRangeComboBox.writableTextBox.TextChanged += WritableTextBox_TextChanged;
        }

        private void WritableTextBox_TextChanged(object sender, TextChangedEventArgs e)
        {

            string PageRangeSelectIndex = ((HomePageExtractDialogViewModel)this.DataContext).PageRangeSelectIndex;
            var currentViewer = ((HomePageExtractDialogViewModel)this.DataContext).currentViewer;
            string PageRange = "";
            var PageRangeText = ((HomePageExtractDialogViewModel)this.DataContext).PageRangeText;
            HomePageEditHelper.GetPagerange(PageRangeSelectIndex, currentViewer, ref PageRange, PageRangeText);
            char[] enumerationSeparator = new char[] { ',' };
            char[] rangeSeparator = new char[] { '-' };

            if (!CommonHelper.GetPagesInRange(ref ExtractPreview.PageIndexLists, PageRange, currentViewer.Document.PageCount, enumerationSeparator, rangeSeparator))
            { //TODO
                ExtractPreview.PageIndexLists.Add(0);

                return;
            }
            else
            {
                ExtractPreview.PageIndex.Text = (ExtractPreview.PageIndexLists.Last<int>() + 1).ToString();
                ExtractPreview.CurrentIndex = 0;
                ExtractPreview.CurrentPage.Text = (ExtractPreview.PageIndexLists[ExtractPreview.CurrentIndex] + 1).ToString();
                ExtractPreview.AwaitRenderBitmap(ExtractPreview.document);
            }

        }

        private void PageRangeComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {

            string PageRangeSelectIndex = ((HomePageExtractDialogViewModel)this.DataContext).PageRangeSelectIndex;
            var currentViewer = ((HomePageExtractDialogViewModel)this.DataContext).currentViewer;
            string PageRange = "";
            var PageRangeText = ((HomePageExtractDialogViewModel)this.DataContext).PageRangeText;
            if (PageRangeSelectIndex == "0" || PageRangeSelectIndex == "1" || PageRangeSelectIndex == "2")
            {
                HomePageEditHelper.GetPagerange(PageRangeSelectIndex, currentViewer, ref PageRange, PageRangeText);
                char[] enumerationSeparator = new char[] { ',' };
                char[] rangeSeparator = new char[] { '-' };
                if (!CommonHelper.GetPagesInRange(ref ExtractPreview.PageIndexLists, PageRange, currentViewer.Document.PageCount, enumerationSeparator, rangeSeparator))
                { //TODO
                    Trace.WriteLine("输入不对");
                    MessageBoxEx.Show("输入不对");
                    return;
                }

            }
            ExtractPreview.PageIndex.Text = (ExtractPreview.PageIndexLists.Last<int>() + 1).ToString();
            ExtractPreview.CurrentIndex = 0;
            ExtractPreview.CurrentPage.Text = (ExtractPreview.PageIndexLists[ExtractPreview.CurrentIndex] + 1).ToString();
            ExtractPreview.AwaitRenderBitmap(ExtractPreview.document);
        }
    }
}