using Word = Microsoft.Office.Interop.Word;
using System.Diagnostics;
using Logger = Log.Log;

namespace WordAnalyze
{
    public class Analyze
    {
        public Analyze()
        {

        }

        // 将word根据指定的值切割成多个word
        public string AnalyzeAndCut()
        {
            return "";
        }

        public string AnalyzeFile(string fileName)
        {
            if (!ValidFileName(fileName))
            {
                Logger.D("AnalyzeFile with invalid file name {0}", fileName);
                return "无效的文件名";       
            }

            object fn = fileName;

            Word.ApplicationClass app = new Word.ApplicationClass();
            Word.Document doc = null;
            try
            {
                doc = app.Documents.Open(ref fn);

                var oDoc = app.Documents.Add();
                //Insert a paragraph at the beginning of the document.
                var paragraph1 = oDoc.Content.Paragraphs.Add();

                Word.Paragraphs garapraph = doc.Paragraphs;

                for (int i = 1; i < garapraph.Count; i++)
                {
                    Logger.D("-- {0}", garapraph[i].Range.Text.ToString());
                    garapraph[i].Range.Select();

                    app.Selection.Copy();
                    app.Selection.Paste();

                    //var tempDoc = app.Documents.Add(oDoc);
                    //tempDoc.Content.Paragraphs.Add();

                    app.Documents[1].Activate();
                    app.Selection.Paste();
                    //tempDoc.SaveAs2(Rename(fileName, i));

                    //tempDoc.Close();

                    Logger.D("selection --- {0}", app.Selection.ToString());
                }

                Logger.D("documents count is {0}", app.Documents.Count);

                doc.Save();
                doc.SaveAs2(@"E:\test\test2222.doc");

                var file = Rename(fileName, 1000);
                object objectFilename = file;

                //paragraph1.Range.Text = "Heading 1";
                //paragraph1.Range.Font.Bold = 1;
                //paragraph1.Format.SpaceAfter = 24;    //24 pt spacing after paragraph.

                oDoc.SaveAs2(objectFilename);
            }
            catch (System.Exception e)
            {
                Logger.E("analyze with file name({0}) error ->({1})", fileName, e.Message.ToString());
                return e.Message.ToString();
            }
            finally
            {
                if (doc != null) {
                    doc.Close();
                }
                if (app != null)
                {
                    app.Quit();
                }
            }

            return "";
        }


        // 判断文件后缀名是否是.doc 或者.docx
        public bool ValidFileName(string fileName)
        {
            if (fileName == null || fileName.Length < 1)
            {
                return false;
            }
            if (!fileName.EndsWith(".doc") && !fileName.EndsWith(".docx"))
            {
                return false;
            }
            return true;
        }

        public string WriteFile(string filename)
        {
            return "";
        }

        public string Rename(string filename, int index)
        {
            int lastIndex = filename.LastIndexOf('.');
            string newFilename = string.Format("{0}{1}{2}", filename.Substring(0, lastIndex), index, filename.Substring(lastIndex));
            return newFilename;
        }
    }
}