using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using Microsoft.Office.Interop;
using Microsoft.Office.Interop.Word;

namespace Volian.MSWord
{
	public class WordDoc
	{
		private static object optional = Missing.Value;
		private static object oFalse = false;
		private object oTrue = true;
		private object oBlank = "";
		private object oWdStory = WdUnits.wdStory;
		private object oWdWord = WdUnits.wdWord;
		private object oWdChar = WdUnits.wdCharacter;
		private object oWdLine = WdUnits.wdLine;
		private object oWdPara = WdUnits.wdParagraph;
		private object oWdExtend = WdMovementType.wdExtend;
		private object oWdMove = WdMovementType.wdMove;
		private object o1 = 1;
		private static Application m_App;
		//		Microsoft.Office.Interop.Word.Application App
		//		{
		//			get{return m_App;}
		//		}
		private Document m_Doc;
		//		Microsoft.Office.Interop.Word.Document Doc
		//		{
		//			get{return m_Doc;}
		//		}
		private string mDocName;

		public string DocName
		{
			get { return mDocName; }
			set { mDocName = value; }
		}
		public WordDoc(string sPath)
		{
			OpenApp();
			//m_App.Visible = true;
			mDocName = sPath;
			object oFile = sPath;
			m_Doc = m_App.Documents.Open(
				ref oFile // FileName
				,ref optional // ConfirmConversions
				,ref optional // ReadOnly
				,ref optional // AddToRecentFiles
				,ref optional // PasswordDocument
				,ref optional // PasswordTemplate
				,ref optional // Revert
				,ref optional // WritePasswordDocument
				,ref optional // WritePasswordTemplate
				,ref optional // Format
				,ref optional // Encoding
				,ref optional // Visible
				,ref optional // OpenAndRepair
				,ref optional // DocumentDirection
				,ref optional // NoEncodingDialog
				,ref optional // XMLTransform
				);
		}
		//~WordDoc()
		//{
		//  m_App.Quit(ref oFalse, ref optional, ref optional);
		//}
		private string SaveDoc()
		{
			object oFileName = mDocName;
			object oFileFormat = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatDocument;
			//object oFileFormat = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatFilteredHTML;
			object oPassWord = "";
			try
			{
				m_Doc.SaveAs2000(
					 ref oFileName // FileName
					,ref oFileFormat // FileFormat
					,ref oFalse // LockComments
					,ref oPassWord // Password
					,ref oFalse // AddToRecentFiles
					,ref oPassWord // WritePassword
					,ref oFalse // ReadOnlyRecommended
					,ref oFalse // EmbedTrueTypeFonts
					,ref oFalse // SaveNativePictureFormat
					,ref oFalse // SaveFormsData
					,ref oFalse // SaveAsAOCELetter
					);
				return "Successful Save";
			}
			catch (Exception ex)
			{
				return string.Format("Error during Doc save - {0}", ex.Message);
			}
		}
		public string Save()
		{
			return SaveDoc();
		}
		public string Save(string sPath)
		{
			mDocName = sPath;
			return SaveDoc();
		}
		public void Close()
		{
			m_Doc.Close(ref oFalse, ref optional, ref optional);
			//CloseApp();
		}
		public void SetLineSpacing(float linesPerInch)	// if need landscape set too: , bool landscape) 
		{
			Selection sel = m_App.Selection;
			sel.WholeStory();
			// if need landscape set too: if (landscape) sel.PageSetup.Orientation = WdOrientation.wdOrientLandscape;
			sel.ParagraphFormat.SpaceBefore=0;
			sel.ParagraphFormat.SpaceAfter = 0;
			sel.ParagraphFormat.LineSpacingRule = WdLineSpacing.wdLineSpaceExactly;
			sel.ParagraphFormat.LineSpacing = 72/linesPerInch; // 12 ==> 6 Lines per inch 
		} 
		public void OpenApp()
		{
			if(m_App==null)
				m_App = new ApplicationClass();
		}
		public static void CloseApp()
		{
			if (m_App != null)
			{
				m_App.Quit(ref oFalse, ref optional, ref optional);
				m_App = null;
			}
		}
	}
}