using Microsoft.Win32;
using PDF_Master.Model;
using PDF_Master.Model.Dialog.HomePageToolsDialogs;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PDF_Master.ViewModels.Dialog.HomePageToolsDialogs
{
    public class CreateFromHtmlDialogViewModel : BindableBase, IDialogAware
    {
        public string Title => "";

        public event Action<IDialogResult> RequestClose;

        private string filepath = "";

        public string FilePath
        {
            get { return filepath; }
            set
            {
                SetProperty(ref filepath, value);
                if(!string.IsNullOrEmpty(value))
                {
                    Model.FilePath = value;
                }
            }
        }


        private double margin = 0;

        public double Margin
        {
            get { return margin; }
            set
            {
                SetProperty(ref margin, value);
                Model.Margin = value;
            }
        }


        private int selectedIndex = 0;

        public int SelectedIndex
        {
            get { return selectedIndex; }
            set
            {
                SetProperty(ref selectedIndex, value);
                if (value>0)
                {
                    Model.PageSize = (Microsoft.Office.Interop.Word.WdPaperSize)value;
                }
            }
        }

        public List<string> PageSizes { get; set; } = new List<string>();

        /// <summary>
        /// 数据模型
        /// </summary>
        public HtmlModel Model { get; set; } = new HtmlModel();

        public DelegateCommand OpenFileCommnad { get; set; }

        public DelegateCommand CreateCommand { get; set; }

        public DelegateCommand CancelCommand { get; set; }

        public CreateFromHtmlDialogViewModel()
        {
            OpenFileCommnad = new DelegateCommand(openFile);
            CreateCommand = new DelegateCommand(createFile,CanExcuteCreateFile).ObservesProperty(()=> FilePath);
            CancelCommand = new DelegateCommand(cancel);
            InitPageSize();
        }

        private void InitPageSize()
        {
            PageSizes.Add("10x14");
            PageSizes.Add("11x17");
            PageSizes.Add("Letter");
            PageSizes.Add("LetterSmall");
            PageSizes.Add("Legal");
            PageSizes.Add("Executive");
            PageSizes.Add("A3");
            PageSizes.Add("A4");
            PageSizes.Add("A4Small");
            PageSizes.Add("A5");
            PageSizes.Add("B4");
            PageSizes.Add("B5");
            PageSizes.Add("CSheet");
            PageSizes.Add("DSheet");
            PageSizes.Add("ESheet");
            PageSizes.Add("FanfoldLegalGerman");
            PageSizes.Add("FanfoldStdGerman");
            PageSizes.Add("FanfoldUS");
            PageSizes.Add("Folio");
            PageSizes.Add("Ledger");
            PageSizes.Add("Note");
            PageSizes.Add("Quarto");
            PageSizes.Add("Statement");
            PageSizes.Add("Tabloid");
            PageSizes.Add("Envelope9");
            PageSizes.Add("Envelope10");
            PageSizes.Add("Envelope11");
            PageSizes.Add("Envelope12");
            PageSizes.Add("EnvelopeB4");
            PageSizes.Add("EnvelopeB5");
            PageSizes.Add("EnvelopeB6");
            PageSizes.Add("EnvelopeC3");
            PageSizes.Add("EnvelopeC4");
            PageSizes.Add("EnvelopeC6");
            PageSizes.Add("EnvelopeC65");
            PageSizes.Add("EnvelopeDL");
            PageSizes.Add("EnvelopeItaly");
            PageSizes.Add("EnvelopeMonarch");
            PageSizes.Add("EnvelopePersonal");
        }

        private void createFile()
        {
            DialogParameters valuePairs = new DialogParameters();
            valuePairs.Add(ParameterNames.DataModel, Model);
            RequestClose.Invoke(new DialogResult(ButtonResult.OK,valuePairs));
        }

        /// <summary>
        /// 是否可以创建
        /// </summary>
        /// <returns></returns>
        private bool CanExcuteCreateFile()
        {
            return !string.IsNullOrEmpty(FilePath);
        }

        private void cancel()
        {
            RequestClose.Invoke(new DialogResult(ButtonResult.Cancel));
        }

        private void openFile()
        {
            OpenFileDialog dialog = new OpenFileDialog();
            dialog.Multiselect = false;
            dialog.Filter = "HTML(*.html)|*.html";
            if((bool)dialog.ShowDialog())
            {
                if(!string.IsNullOrEmpty(dialog.FileName))
                {
                    FilePath = dialog.FileName;
                }
            }

        }

        #region 框架
        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
           
        }
#endregion
    }
}