using ComPDFKit_Conversion.Options;
using ComPDFKitViewer.PdfViewer;
using PDF_Office.CustomControl;
using PDF_Office.Helper;
using PDF_Office.Model;
using PDF_Office.Model.Dialog.ConverterDialogs;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Windows.Forms;
using DialogResult = Prism.Services.Dialogs.DialogResult;

namespace PDF_Office.ViewModels.Dialog.ConverterDialogs
{
    public class ConverterExcelDialogViewModel : BindableBase, IDialogAware
    {

        public string Title => "";

        public event Action<IDialogResult> RequestClose;

        #region 参数和属性
        public ConverterExcelDialogModel ConverterExcelModel = new ConverterExcelDialogModel();

        public CPDFViewer currentViewer;

        public string CurrentPageIndex = "1";

        public IDialogService dialogs;

        public string PageRangeText { set; get; } = "0";

        public string PageRangeSelectIndex { set; get; } = "0";
        #endregion

        #region 委托声明
        public DelegateCommand<string> RadioButtonCommand { get; set; }

        public DelegateCommand CancelCommand { get; set; }

        public DelegateCommand ConverterCommnad { get; set; }
        #endregion

        public ConverterExcelDialogViewModel(IDialogService dialogService)
        {
            CancelCommand = new DelegateCommand(cancel);
            ConverterCommnad = new DelegateCommand(converter);
            RadioButtonCommand = new DelegateCommand<string>(radiobutton);
            dialogs = dialogService;
        }
        #region 逻辑函数
        private void cancel()
        {
            RequestClose.Invoke(new DialogResult(ButtonResult.Cancel));
        }

        private void converter()
        {
            FolderBrowserDialog dlg = new FolderBrowserDialog();
            if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                ConverterExcelModel.OutputPath = dlg.SelectedPath.Trim();
            }
            HomePageEditHelper.GetPagerange(PageRangeSelectIndex, currentViewer, ref ConverterExcelModel.PageRange, PageRangeText, true, CurrentPageIndex);
            char[] enumerationSeparator = new char[] { ',' };
            char[] rangeSeparator = new char[] { '-' };
            if (!CommonHelper.GetPagesInRange(ref ConverterExcelModel.PageIndexLists, ConverterExcelModel.PageRange, currentViewer.Document.PageCount, enumerationSeparator, rangeSeparator))
            { //TODO
                Trace.WriteLine("输入不对");
                MessageBoxEx.Show("输入不对");
                return;
            }
            if (ConverterExcelModel.excelOption == null) {
                ConverterExcelModel.excelOption = ConverterExcelModel.ExcelOptions();
            }

            DialogParameters value = new DialogParameters();
            value.Add(ParameterNames.ConverterType, "Excel");
            value.Add(ParameterNames.ConverterTypeModel, ConverterExcelModel);
            RequestClose?.Invoke(new DialogResult(ButtonResult.OK));
            dialogs.ShowDialog(DialogNames.ConverterProgressBarDialog, value, e =>
            {

            });
            
        }

        private void radiobutton(string e) {
            string radioButton=e;
            if (radioButton != null) {
                switch (radioButton)
                {
                    case "ForEachPageRadioBtn":
                        ConverterExcelModel.excelOption=ConverterExcelModel.ExcelOptions();
                        break;
                    case "ForTheDocRadioBtn":
                        ConverterExcelModel.excelOption = ConverterExcelModel.ExcelOptions(WorksheetOptions.ForTheDocument);
                        break;
                    case "OnlyTableRadioBtn":
                        ConverterExcelModel.excelOption = ConverterExcelModel.ExcelOptions(WorksheetOptions.ForEachTable, ContentOptions.OnlyTable);
                        break;
                    default:
                        break;
                }
            }
        
        }
        #endregion

        #region 构架行为

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            CPDFViewer pdfViewer = null;
            parameters.TryGetValue<CPDFViewer>(ParameterNames.PDFViewer, out pdfViewer);
            if (pdfViewer != null)
            {
                currentViewer = pdfViewer;
                ConverterExcelModel.InputPath = pdfViewer.Document.FilePath;
                FileInfo fileinfo = new FileInfo(ConverterExcelModel.InputPath);
                ConverterExcelModel.OutputPath = fileinfo.DirectoryName;
            }
        }
        #endregion
    }
}