using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;

namespace ETS_Data
{
    /// <summary>
    /// gestioen documetni office/xml
    /// </summary>
    public class officeXmlMan
    {
        /// <summary>
        /// fa sostituzioni di testo in un doc .docx
        /// </summary>
        /// <param name="fullPathFile"></param>
        /// <param name="textOrig"></param>
        /// <param name="textNew"></param>
        public static void replaceDocxText(string fullPathFile, string textOrig, string textNew)
        {
            using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(fullPathFile, true))
            {
#if false
                    // lettura
                    string docText = null;
                    using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
                    {
                        docText = sr.ReadToEnd();
                    }
                    // sostituzione
                    Regex regexText = new Regex(textOrig);
                    docText = regexText.Replace(docText, textNew);
                    // scrittura
                    using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
                    {
                        sw.Write(docText);
                    } 
#endif
                // uso questo codice: http://openxmldeveloper.org/blog/b/openxmldeveloper/archive/2011/05/12/148357.aspx
                SearchAndReplacer.SearchAndReplace(wordDoc, textOrig, textNew, true);
            }
        }
    }
}