/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

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

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

* the Free Software Foundation, version 2.1 of the License.

* 

* 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 Lesser General Public License for more details.

*

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

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include <QtGui/QApplication>

#include <QString>

#include <QFile>

#include <QTextStream>

 #include <QByteArray>

namespace WRT {

static int parseHtmlFile(QTextStream &out); 

static int parseTxtFile(QTextStream &out);

static QString getLinkTitle(QString line); // for html file parsing

static QString getLinkUrl(QString line);   // for html file parsing

static QString getFolderTitle(QString line); // for html file parsing

static QString getHeaderTitle(QString line); // for html file parsing

static QString getTxtLinkTitle(QString line);

static QString getTxtLinkUrl(QString line);

QString getFolderTitle(QString line)

{

    QString line2, title="";

    int ii = 0;

    ii = line.lastIndexOf("</H3>", -1, Qt::CaseInsensitive);

    if(ii > 3){

      line2 = line.left(ii);

      ii = line2.lastIndexOf('>');

      title = line2.mid(ii+1);

      title.replace("&", "&");    

    }

    return title;

}

QString getHeaderTitle(QString line)

{

    QString line2, title="";

    int ii = 0;

    ii = line.lastIndexOf("</H1>", -1, Qt::CaseInsensitive);

    if(ii > 3){

      line2 = line.left(ii);

      ii = line2.lastIndexOf('>');

      title = line2.mid(ii+1);

      title.replace("&", "&");

    }

    return title;

}

QString getLinkTitle(QString line)

{

    QString line2, title;

    int ii = 0;

    ii = line.lastIndexOf("</A>", -1, Qt::CaseInsensitive);

    if(ii > 3){

       line2 = line.left(ii);

       ii = line2.lastIndexOf('>');

       title = line2.mid(ii+1);

       title.replace("&", "&");;

    }

    return title;

}

QString getLinkUrl(QString line)

{

    QString line2, url="";

    int ii = 0;

    ii = line.lastIndexOf("HREF", -1, Qt::CaseInsensitive);

    line2 = line.mid(ii+4);

    ii = line2.indexOf("\"");

    line2 = line2.mid(ii+1);

    ii = line2.indexOf("\"");

    url = line2.mid(0, ii);

    url.replace("&", "&");

    return url;

}

QString getTxtLinkTitle(QString line)

{

    QString line2, title="";

    int start = 0, end = 0;

    start = line.lastIndexOf("<", -1, Qt::CaseInsensitive);

    end = line.lastIndexOf(">", -1, Qt::CaseInsensitive);

    if((start==5) && (end >0)){

       if (start+1 == end)

           return "";

       title = line.mid(start+1, end-start-1);

       title.replace("&", "&");

    }

    return title;

}

QString getTxtLinkUrl(QString line)

{

    QString line2, url="";

    int start = 0, end = 0;

    start = line.lastIndexOf("<", -1, Qt::CaseInsensitive);

    end = line.lastIndexOf(">", -1, Qt::CaseInsensitive);

    if((start==4) && (end >0)){

       if (start+1 == end)

           return "";

       url = line.mid(start+1, end-start-1);

       url.replace("&", "&");

    }

    return url;

}

int parseHtmlFile(QTextStream &out)

{

  QString fileName("iebookmark.html");

  QFile file(fileName);

  bool res = file.open(QIODevice::ReadOnly | QIODevice::Text);

  QTextStream rs( &file );

  QString line, line2, url, title;

  bool folderStarted = false;

  if(!res)

      return -1;

  out << "<\?xml version=\"1.0\" encoding=\"UTF-8\"\?> \n";

  out << "<!DOCTYPE xbel> \n";

  out << "<xbel version=\"1.0\"> \n";

  while ( !rs.atEnd() ) {

      line = rs.readLine();         // line of text excluding '\n'

      if ((line.contains("href", Qt::CaseInsensitive)) &&

          !(line.contains("place:folder", Qt::CaseInsensitive)) && !(line.contains("place:sort", Qt::CaseInsensitive))  ){ // URL

          url = getLinkUrl(line);           

          title = getLinkTitle(line);

          out << "<bookmark href=\"" << url << "\"> \n";

          out << "<title>" << title << "</title> \n";

          out << "</bookmark>\n";

      }

      else if (line.contains("</H1>", Qt::CaseInsensitive)){ // Header

          folderStarted = true;

          title = getHeaderTitle(line);

          out << "<folder folded=\"yes\"> \n";

          out << "<title>" << title << "</title>\n";

      }

      else if (line.contains("</H3>", Qt::CaseInsensitive)){ // Folder

          folderStarted = true;

          title = getFolderTitle(line);

          out << "<folder folded=\"yes\"> \n";

          out << "<title>" << title << "</title>\n";

      }

      else if (line.contains("</DL>", Qt::CaseInsensitive)){ // End of Folder

            out << "</folder>  \n";

          folderStarted = false;

      }

  }

  out << "</xbel> \n";

  file.close();

  return 0;

}

int parseTxtFile(QTextStream &out)

{

  QString fileName("c:\\data\\bookmarks.txt");

  QFile file(fileName);

  bool res = file.open(QIODevice::ReadOnly | QIODevice::Text);

  QTextStream rs( &file );

  QString line, line2, url, title;

  if(!res)

      return -1;

  out << "<\?xml version=\"1.0\" encoding=\"UTF-8\"\?> \n"; 

  out << "<!DOCTYPE xbel> \n";

  out << "<xbel version=\"1.0\"> \n";

  while ( !rs.atEnd() ) {

      line = rs.readLine();         // line of text excluding '\n'

      if (line.contains("Name", Qt::CaseInsensitive) && line.indexOf("Name", 0, Qt::CaseInsensitive ) == 0){ // Title

          title = getTxtLinkTitle(line);

      }

      else if (line.contains("url", Qt::CaseInsensitive) && line.indexOf("url", 0, Qt::CaseInsensitive ) == 0){ //URL

          url = getTxtLinkUrl(line);

          if(url =="")

              continue;

          out << "<bookmark href=\"" << url.toUtf8() << "\"> \n";

          if(title.toUtf8() == "")

          	out << "<title>" << "Imported Bookmark"<< "</title> \n";

          else	

          	out << "<title>" << title.toUtf8 ()<< "</title> \n";

          out << "</bookmark>\n";

      }      

  }

  out << "</xbel> \n";

  file.close();

  return 0;

}

int startNativeBookmarksParsing()

{

    QString fileName("c:\\data\\bookmarks.txt.xml");

    QFile outHtmlFile(fileName);

    bool res = outHtmlFile.open(QIODevice::WriteOnly | QIODevice::Text);

    if(!res)

      return -1;

    QTextStream out( &outHtmlFile );

    //parseHtmlFile(out);

    parseTxtFile(out);

    outHtmlFile.close();

    return 0;

}

}// namespace WRT