using System;
using System.Text;
using System.Xml.Serialization;
using PDFPatcher.Common;
using E = System.Text.Encoding;

namespace PDFPatcher
{
	public class ExporterOptions
	{
		private bool _ExportDocProperties = true;
		///<summary>获取或指定是否导出文档属性。</summary>
		[XmlAttribute("导出文档属性")]
		public bool ExportDocProperties {
			get => _ExportDocProperties;
			set => _ExportDocProperties = value;
		}

		private bool _ExportBookmarks = true;
		///<summary>获取或指定是否导出书签。</summary>
		[XmlAttribute("导出文档书签")]
		public bool ExportBookmarks {
			get => _ExportBookmarks;
			set => _ExportBookmarks = value;
		}

		private bool _ExtractPageLinks = true;
		///<summary>获取或指定是否导出页面内的连接。</summary>
		[XmlAttribute("导出页面链接")]
		public bool ExtractPageLinks {
			get => _ExtractPageLinks;
			set => _ExtractPageLinks = value;
		}

		private bool _ExportViewerPreferences = true;
		///<summary>获取或指定是否导出阅读器设置。</summary>
		[XmlAttribute("导出阅读器设置")]
		public bool ExportViewerPreferences {
			get => _ExportViewerPreferences;
			set => _ExportViewerPreferences = value;
		}

		private bool _ExtractPageSettings = true;
		///<summary>获取或指定是否导出页面的阅读设置。</summary>
		[XmlAttribute("导出页面设置")]
		public bool ExtractPageSettings {
			get => _ExtractPageSettings;
			set => _ExtractPageSettings = value;
		}

		///<summary>获取或指定是否导出文档编录信息。</summary>
		[XmlAttribute("导出编录信息")]
		public bool ExportCatalog { get; set; }

		///<summary>获取或指定是否导出页面内容信息。</summary>
		[XmlAttribute("导出页面内容")]
		public bool ExtractPageContent { get; set; }

		///<summary>获取或指定需要导出的页码范围。页码范围可用“-”表示起止页码，如有多个页码，可用“;”、“,”或“ ”（空格）隔开，如“1;4-15;2 56”，表示依次导出第1页、第4至15页、第2页和第56页的内容。</summary>
		[XmlAttribute("导出页码范围")]
		public string ExtractPageRange { get; set; }

		///<summary>获取或指定页面字典的值。</summary>
		[XmlAttribute("导出页面字典")]
		public bool ExtractPageDictionary { get; set; }

		///<summary>获取或指定是否导出页面中的图片为独立的文件。</summary>
		[XmlAttribute("导出图片")]
		public bool ExtractImages { get; set; }

		///<summary>获取或指定是否解码导出页面中的文本。</summary>
		[XmlAttribute("导出解码文本")]
		public bool ExportDecodedText { get; set; }

		///<summary>获取或指定是否解码导出页面指令。</summary>
		[XmlAttribute("导出命令操作符")]
		public bool ExportContentOperators { get; set; }

		private int _ExportBinaryStream = 200;
		///<summary>获取或指定导出二进制流的字节数。</summary>
		[XmlAttribute("导出二进制流")]
		public int ExportBinaryStream {
			get => _ExportBinaryStream;
			set => _ExportBinaryStream = value;
		}

		///<summary>获取或指定导出前是否解析命名位置。</summary>
		[XmlAttribute("解析命名位置")]
		public bool ConsolidateNamedDestinations { get; set; }

		private readonly ImageExtracterOptions _Images = new ImageExtracterOptions();
		///<summary>获取导出图像的选项。</summary>
		[XmlIgnore]
		public ImageExtracterOptions Images => _Images;

		private UnitConverter _UnitConverter = new UnitConverter();
		[XmlElement("导出尺寸单位")]
		public UnitConverter UnitConverter {
			get => _UnitConverter;
			set => _UnitConverter = value;
		}

		private Encoding _Encoding = E.Default;
		private string _EncodingName;
		///<summary>获取或指定导出文件时所用的编码。</summary>
		[XmlAttribute("文本编码")]
		public string Encoding {
			get {
				if (_Encoding.EncodingName == E.Default.EncodingName) {
					return Constants.Encoding.SystemDefault;
				}
				return _EncodingName;
			}
			set {
				if (String.IsNullOrEmpty(value) || value == Constants.Encoding.SystemDefault) {
					_Encoding = E.Default;
				}
				else {
					try {
						_Encoding = E.GetEncoding(value);
						_EncodingName = value;
					}
					catch (Exception) {
						_EncodingName = Constants.Encoding.SystemDefault;
					}
				}
			}
		}

		public Encoding GetEncoding() {
			return _Encoding;
		}

	}
}