// Copyright (C) 2006 Igor Zelmanovich <izwebfilemanager@gmail.com>

//

// This program is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; either version 2 of the License, or

// (at your option) any later version.

//

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program; if not, write to the Free Software

// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



using System;

using System.Collections.Generic;

using System.Text;

using System.IO;

using System.Web;

using System.Globalization;



namespace IZ.WebFileManager

{

	sealed class FileViewItem

	{

		string _thumbnailImage;

		string _smallImage;

		string _largeImage;

		string _size;

		string _type;

		string _modified;

		string _cliendID;

		readonly FileSystemInfo _fsi;

		readonly FileManagerControlBase _fileView;

		bool? _hidden;



		public FileSystemInfo FileSystemInfo {

			get { return _fsi; }

		}



		public bool IsDirectory {

			get { return _fsi is DirectoryInfo; }

		}



		public string ClientID {

			get { return _cliendID; }

			set { _cliendID = value; }

		}



		public bool CanBeRenamed {

			get { return true; }

		}



		public string SmallImage {

			get {

				if (_smallImage == null)

					_smallImage = _fileView.Controller.GetItemSmallImage (_fsi);

				return _smallImage;

			}

		}



		public string LargeImage {

			get {

				if (_largeImage == null)

					_largeImage = _fileView.Controller.GetItemLargeImage (_fsi);

				return _largeImage;

			}

		}



		public string ThumbnailImage {

			get {

				if (_thumbnailImage == null)

					_thumbnailImage = _fileView.Controller.GetItemThumbnailImage (_fsi, _fileView.CurrentDirectory);

				return _thumbnailImage;

			}

		}



		public string Info {

			get { return String.Empty; }

		}



		public string Size {

			get {

				if (_size == null)

					_size = _fsi is DirectoryInfo ? "&nbsp;" : FileSizeToString (((FileInfo) _fsi).Length);

				return _size;

			}

		}



		public string Type {

			get {

				if (_type == null)

					_type = GetItemType (_fsi);

				return _type;

			}

		}



		public string Modified {

			get {

				if (_modified == null)

					_modified = _fsi.LastWriteTime.ToString ("g", null);

				return _modified;

			}

		}



		public string Name {

			get { return _fsi.Name; }

		}



		public bool Hidden {

			get {

				if (!_hidden.HasValue) {

					_hidden = (!String.IsNullOrEmpty (_fileView.HiddenFilesAndFoldersPrefix) && _fsi.Name.StartsWith (_fileView.HiddenFilesAndFoldersPrefix, StringComparison.InvariantCultureIgnoreCase));

					if (!_hidden.Value && _fsi is FileInfo) {

						string ext = _fsi.Extension.ToLower (CultureInfo.InvariantCulture).TrimStart ('.');

						_hidden = _fileView.Controller.HiddenFilesArray.Contains (ext);

					}

				}

				return _hidden.Value;

			}

		}



		internal FileViewItem (FileSystemInfo fsi, FileManagerControlBase fileView) {

			this._fsi = fsi;

			this._fileView = fileView;

		}



		string GetItemType (FileSystemInfo fsi) {

			if (fsi is DirectoryInfo)

				return _fileView.Controller.GetResourceString ("File_Folder", "File Folder");

			else {

				FileInfo file = (FileInfo) fsi;

				FileType ft = _fileView.Controller.GetFileType (file);

				if (ft != null && ft.Name.Length > 0)

					return ft.Name;

				else {

					return file.Extension.ToUpper (CultureInfo.InvariantCulture).TrimStart ('.') + " File";

				}

			}



		}



		static string FileSizeToString (long size) {

			if (size < 1024)

				return size.ToString (null, null) + " B";

			else if (size < 1048576)

				return (size / 1024).ToString (null, null) + " KB";

			else

				return (size / 1048576).ToString (null, null) + " MB";



		}

	}

}