using ComPDFKit.PDFDocument;
using ComPDFKitViewer.PdfViewer;
using PDF_Master.Helper;
using PDF_Master.Model;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

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

        public event Action<IDialogResult> RequestClose;

        private CPDFDocument Document;

        private string fileName;
        /// <summary>
        /// 文件名
        /// </summary>
        public string FileName
        {
            get { return fileName; }
            set
            {
                SetProperty(ref fileName, value);
            }
        }

        private string fileSize;
        /// <summary>
        /// 文件大小
        /// </summary>
        public string FileSize
        {
            get { return fileSize; }
            set
            {
                SetProperty(ref fileSize, value);
            }
        }

        private string title;
        /// <summary>
        /// 文件标题
        /// </summary>
        public string FileTitle
        {
            get { return title; }
            set
            {
                SetProperty(ref title, value);
            }
        }

        private string author;
        /// <summary>
        /// 作者
        /// </summary>
        public string Author
        {
            get { return author; }
            set
            {
                SetProperty(ref author, value);
            }
        }

        private string filePath;
        /// <summary>
        /// 文件路径
        /// </summary>
        public string FilePath
        {
            get { return filePath; }
            set
            {
                SetProperty(ref filePath, value);
            }
        }

        private string version;
        /// <summary>
        /// 版本
        /// </summary>
        public string Version
        {
            get { return version; }
            set
            {
                SetProperty(ref version, value);
            }
        }

        private int pageCounr;
        /// <summary>
        /// 页面大小
        /// </summary>
        public int PageCount
        {
            get { return pageCounr; }
            set
            {
                SetProperty(ref pageCounr, value);
            }
        }

        private string creator;
        /// <summary>
        /// 创建软件名
        /// </summary>
        public string Creator
        {
            get { return creator; }
            set
            {
                SetProperty(ref creator, value);
            }
        }

        private string productor;

        public string Productor
        {
            get { return productor; }
            set
            {
                SetProperty(ref productor, value);
            }
        }

        private string createDate;
        /// <summary>
        /// 创建日期
        /// </summary>
        public string CreateDate
        {
            get { return createDate; }
            set
            {
                SetProperty(ref createDate, value);
            }
        }

        private string modifyDate;
        /// <summary>
        /// 编辑日期
        /// </summary>
        public string ModifyDate
        {
            get { return modifyDate; }
            set
            {
                SetProperty(ref modifyDate, value);
            }
        }


        private string isEncrypted;
        /// <summary>
        /// 是否加密
        /// </summary>
        public string IsEncrypted
        {
            get { return isEncrypted; }
            set
            {
                SetProperty(ref isEncrypted, value);
            }
        }

        private string isUnlocked;
        /// <summary>
        /// 是否加锁
        /// </summary>
        public string IsUnlocked
        {
            get { return isUnlocked; }
            set
            {
                SetProperty(ref isUnlocked, value);
            }
        }

        private string allowCopy;
        /// <summary>
        /// 允许复制
        /// </summary>
        public string AllowCopy
        {
            get { return allowCopy; }
            set
            {
                SetProperty(ref allowCopy, value);
            }
        }

        private string allowPrint;
        /// <summary>
        /// 允许打印
        /// </summary>
        public string AllowPrint
        {
            get { return allowPrint; }
            set
            {
                SetProperty(ref allowPrint, value);
            }
        }


        public PropertiesDialogViewModel()
        {

        }

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {
            RequestClose.Invoke(new DialogResult());
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            Document = parameters.GetValue<CPDFDocument>(ParameterNames.PDFDocument);

            var info = Document.GetInfo();
            FileName = Document.FileName;
            FileSize = CommonHelper.GetFileSize(Document.FilePath);
            FileTitle = info.Title;
            Author = info.Author;
            if ((App.mainWindowViewModel.SelectedItem.DataContext as MainContentViewModel).NewFile)
            {
                //新建文档不显示临时路径
                FilePath = "";
            }
            else
            {
                FilePath = Document.FilePath;
            }
            Version = info.Version;
            PageCount = Document.PageCount;
            Creator = info.Creator;
            Productor = info.Producer;
            CreateDate = CommonHelper.GetDate(info.CreationDate);
            ModifyDate = CommonHelper.GetDate(info.ModificationDate);

            string yes = "Yes";
            string no = "No";

            IsEncrypted = Document.IsEncrypted ? yes : no;
            IsUnlocked = Document.IsLocked ? no : yes;

            var permissions = Document.GetPermissionsInfo();

            AllowCopy = permissions.AllowsCopying? yes : no;
            AllowPrint = permissions.AllowsPrinting ? yes : no;
        }
    }
}