/***************************************************************************
                          kwordquizdoc.cpp  -  description
                             -------------------
    begin                : Wed Jul 24 20:12:30 PDT 2002
    copyright            : (C) 2002 by Peter Hedlund
    email                : peter.hedlund@kdemail.net
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

// include files for Qt

// include files for KDE
#include <klocale.h>
#include <kmessagebox.h>
#include <kio/netaccess.h>
#include "keduvocdata.h"

// application specific includes
#include "kwordquizdoc.h"
#include "kwordquiz.h"
#include "kvtmlwriter.h"
#include "version.h"
#include "paukerreader.h"
#include "wqlreader.h"
#include "wqlwriter.h"
#include "prefs.h"

//QList<KWordQuizView> *KWordQuizDoc::pViewList = 0L;
//KWordQuizView *KWordQuizDoc::m_view;

KWordQuizDoc::KWordQuizDoc(QWidget *parent, const char *name) : QObject(parent, name)
{
  connect(KDirWatch::self(), SIGNAL(dirty(const QString& )), this, SLOT(slotModifiedOnDisk(const QString& )));
  /* if(!pViewList)
   {
     pViewList = new QList<KWordQuizView>();
   }

   pViewList->setAutoDelete(true);*/
}

KWordQuizDoc::~KWordQuizDoc()
{}

void KWordQuizDoc::addView(KWordQuizView *view)
{
  //pViewList->append(view);
  m_view = view;
}

void KWordQuizDoc::removeView(KWordQuizView *view)
{
  // m_view = Null;
  // pViewList->remove(view);
}
void KWordQuizDoc::setURL(const KURL &url)
{
  doc_url=url;
}

const KURL& KWordQuizDoc::URL() const
{
  return doc_url;
}

void KWordQuizDoc::slotUpdateAllViews(KWordQuizView *sender)
{
  //m_view->repaint();
  /*KWordQuizView *w;
  if(pViewList)
  {
    for(w=pViewList->first(); w!=0; w=pViewList->next())
    {
      if(w!=sender)
        w->repaint();
    }
  }*/

}

void KWordQuizDoc::setModified(bool _m)
{
  modified=_m;
  if (modified)
  {
    //
  }
  else
  {
    //
  }
}

bool KWordQuizDoc::saveModified()
{
  bool completed=true;

  if(modified)
  {
    KWordQuizApp *win=(KWordQuizApp *) parent();
    int want_save = KMessageBox::warningYesNoCancel(win,
                    i18n("The current file has been modified.\n"
                         "Do you want to save it?"),
                    i18n("Warning"),KStdGuiItem::save(),KStdGuiItem::discard());
    switch(want_save)
    {
    case KMessageBox::Yes:
      if (doc_url.fileName() == i18n("Untitled"))
      {
        completed = win->saveAsFileName();
      }
      else
      {
        completed = saveDocument(URL());
      };

      break;

    case KMessageBox::No:
      setModified(false);
      completed=true;
      break;

    case KMessageBox::Cancel:
      completed=false;
      break;

    default:
      completed=false;
      break;
    }
  }

  return completed;
}

void KWordQuizDoc::closeDocument()
{
  deleteContents();
}

bool KWordQuizDoc::newDocument()
{
  modified=false;
  doc_url.setFileName(i18n("Untitled"));
  return true;
}

bool KWordQuizDoc::openDocument(const KURL& url, bool append, int index)
{
  QString tmpfile;
  if (KIO::NetAccess::download( url, tmpfile, 0 ))
  {
    QFile file(tmpfile);
    if (!file.open(IO_ReadOnly))
    {
      KMessageBox::error(0, i18n("<qt>Cannot open file<br><b>%1</b></qt>").arg(url.path()));
      return false;
    }

    if (append)
      doc_url.setFileName(i18n("Untitled")); //To invoke Save As...,
    else
      doc_url = url;

    QTable* g = m_view;
    g->setUpdatesEnabled(false);

    int i = 0;
    if (append && index > 0)
      i = g->numRows();

    if (url.path().right(7) == ".xml.gz")
    {
      doc_url.setFileName(i18n("Untitled"));//To invoke Save As..., since we don't have save support for this format
      PaukerData * paukerDoc = new PaukerData;
      PaukerDataItemList dataList = paukerDoc->parse(tmpfile);
      if (!dataList.isEmpty())
      {      
        g->setNumRows(dataList.count() + i);
        QString s;
        PaukerDataItemList::ConstIterator end(dataList.end());
        for(PaukerDataItemList::ConstIterator dataIt = dataList.begin(); dataIt != end; ++dataIt)
        {
          s = (*dataIt).frontSide();
          if (!s.isEmpty())
            g->setText(i, 0, s); //calling setText only when there actually is text helps with sorting
          s = (*dataIt).backSide();
          if (!s.isEmpty())
            g->setText(i, 1, s);
          i++;
        }
      }
    }

    if (url.path().right(6) == ".kvtml")
    {
      KEduVocData * kvtmldoc = new KEduVocData;
      KEduVocDataItemList dataList = kvtmldoc->parse(tmpfile);
      if (!dataList.isEmpty())
      {
        if ((uint) kvtmldoc->numRows() > dataList.count())
          g->setNumRows(kvtmldoc->numRows() + i);
        else
          g->setNumRows(dataList.count() + i);

        if (!append)
        {
          g->horizontalHeader()->setLabel(0, kvtmldoc->language(0));
          g->horizontalHeader()->setLabel(1, kvtmldoc->language(1));
          g->setColumnWidth(0, kvtmldoc->colWidth(0));
          g->setColumnWidth(1, kvtmldoc->colWidth(1));
        }
        QString s;
        KEduVocDataItemList::ConstIterator end(dataList.end());
        for(KEduVocDataItemList::ConstIterator dataIt = dataList.begin(); dataIt != end; ++dataIt)
        {
          s = (*dataIt).originalText();
          if (!s.isEmpty())
            g->setText(i, 0, s); //calling setText only when there actually is text helps with sorting
          s = (*dataIt).translatedText();
          if (!s.isEmpty())
            g->setText(i, 1, s);
          i++;
        }
      }
    }

    if (url.path().right(4) == ".wql")
    {
      WqlReader * wqldoc = new WqlReader;
      KWqlDataItemList dataList = wqldoc->parse(tmpfile);
      if (!dataList.isEmpty())
      {
        if ((uint) wqldoc->numRows() > dataList.count())
          g->setNumRows(wqldoc->numRows() + i);
        else
          g->setNumRows(dataList.count() + i);

        if (!append)
        {
          g->horizontalHeader()->setLabel(0, wqldoc->language(0));
          g->horizontalHeader()->setLabel(1, wqldoc->language(1));
          g->setColumnWidth(0, wqldoc->colWidth(0));
          g->setColumnWidth(1, wqldoc->colWidth(1));
          g->setFont(wqldoc->font());
          g->setCurrentCell(wqldoc->startRow(), wqldoc->startCol());
          g->selectCells(wqldoc->startRow(), wqldoc->startCol(), wqldoc->endRow(), wqldoc->endCol());
          Prefs::setSpecialCharacters(wqldoc->specialCharacters());
        }
        QString s;
        KWqlDataItemList::ConstIterator end(dataList.end());
        for(KWqlDataItemList::ConstIterator dataIt = dataList.begin(); dataIt != end; ++dataIt)
        {
          s = (*dataIt).frontText();
          if (!s.isEmpty())
            g->setText(i, 0, s); //calling setText only when there actually is text helps with sorting
          s = (*dataIt).backText();
          if (!s.isEmpty())
            g->setText(i, 1, s);
          g->setRowHeight(i, (*dataIt).rowHeight());
          i++;
        }
      }
    }

    if (url.path().right(4) == ".csv")
    {
      QTextStream ts(&file);
      ts.setEncoding(QTextStream::UnicodeUTF8);

      QString f = ts.read();
      QStringList fl = QStringList::split('\n', f, true);
      g->setNumRows(fl.count() - 1 + i);

      QStringList sl = QStringList::split(",", fl[0], true);

      if (!append)
      {
        if (!sl[0].isEmpty())
          g->horizontalHeader()->setLabel(0, sl[0]);
        if (!sl[1].isEmpty())
          g->horizontalHeader()->setLabel(1, sl[1]);
      }

      for(int j = 1; j < fl.count(); j++)
      {
        QStringList sl = QStringList::split(",", fl[j], true);
        if (!sl[0].isEmpty())
          g->setText(i + j - 1, 0, sl[0]);
        if (!sl[1].isEmpty())
          g->setText(i + j - 1, 1, sl[1]);
      }
    }

    file.close();
    KIO::NetAccess::removeTempFile( tmpfile );

    //Apply word wrap to cell with text
    QTableItem* itm;
    for (int r = 0; r <= g->numRows() -1; ++r)
    {
      itm = g->item(r, 0);
      if (itm != 0)
        itm->setWordWrap(true);
      itm = g->item(r, 1);
      if (itm != 0)
        itm->setWordWrap(true);
    }

    g->setUpdatesEnabled(true);
    g->repaintContents();
  }
  modified=false;
  if (append)
    modified = true;

  return true;
}

bool KWordQuizDoc::saveDocument(const KURL& url, const char *format /*=0*/)
{

  QFile file(url.path());
  if (!file.open(IO_WriteOnly))
  {
    KMessageBox::error(0, i18n("<qt>Cannot write to file<br><b>%1</b></qt>")
                       .arg(url.path()));
    //if (filename == fname)
    // filename = "";
    return false;
  }

  QTable* g = m_view;
  QString s = "";
  int w = 0;

  if (url.path().right(6) == ".kvtml")
  {
    file.close();
    KVTMLWriter writer(&file);
    writer.addHeader(QString("kwordquiz %1").arg(KWQ_VERSION), 2, g->numRows(), url.fileName());
    writer.addFirstItem(g->horizontalHeader()->label(0), g->columnWidth(0), g->text(w, 0), g->horizontalHeader()->label(1), g->columnWidth(1), g->text(w, 1));
    w++;
    int r = g->numRows();
    while (w < r)
    {
      writer.addItem(g->text(w, 0), g->text(w, 1));
      w++;
    }
  }
  
  if (url.path().right(4) == ".wql")
  {
    file.close();
    WqlWriter writer(&file);
    writer.writeFont(g->font());
    writer.writeCharacters(Prefs::specialCharacters());
    writer.writeGridInfo(g->verticalHeader()->width(), g->columnWidth(0), g->columnWidth(1), g->numRows());
    if (g->numSelections() > 0)
    {
      QTableSelection qts = g->selection(0);
      writer.writeSelection(qts.leftCol(), qts.topRow(), qts.rightCol(), qts.bottomRow());
    }
    else
    {
      writer.writeSelection(g->currentColumn(), g->currentRow(), g->currentColumn(), g->currentRow());
    }    
    writer.writeFirstItem(g->horizontalHeader()->label(0), g->horizontalHeader()->label(1));
    int r = g->numRows();
    while (w < r)
    {
      writer.writeItem(g->text(w, 0), g->text(w, 1), g->rowHeight(w));
      w++;
    }
  }
  
  if (url.path().right(4) == ".csv")
  {
    QTextStream ts(&file);
    ts.setEncoding(QTextStream::UnicodeUTF8);
    ts << g->horizontalHeader()->label(0)  << "," << g->horizontalHeader()->label(1)  << endl; 

    int i = 0;
    int r = g->numRows();
    while (i < r)
    {
      ts << g->text(i, 0)  << "," << g->text(i, 1) << endl;
      i++;
    }    
  }      
  
  if (url.path().right(5) == ".html")
  {
    QString cw1 = "width: " + QString::number(g->columnWidth(0)) + "; ";
    QString cw2 = "width: " + QString::number(g->columnWidth(1)) + "; ";
    
    QString fn = "font-family: '" + g->font().family() + "'; ";
    QString fs = "font-size: " + QString::number(g->font().pointSize()) + "pt; ";
    QString fb;
    QString fi;
    
    if (g->font().bold())
      fb = "font-weight: bold; ";
    else
      fb = "font-weight: normal; ";
    
    if (g->font().italic())
      fi = "font-style: italic; ";
    else
      fi = "font-style: normal; ";      
    
    QString hstyle0 = "style=\"text-align: right; width: " + QString::number(g->verticalHeader()->sectionSize(0)) + "; font-size: 12pt; background-color: darkgray\"";
    QString hstyle1 = "style=\"" + cw1 + "font-size: 12pt; background-color: darkgray\"";
    QString hstyle2 = "style=\"" + cw2 + "font-size: 12pt; background-color: darkgray\"";
    
    QString style1 = "style=\"" + cw1 + fn + fs + fb + fi + "background-color: white\"";
    QString style2 = "style=\"" + cw2 + fn + fs + fb + fi + "background-color: white\"";      
   
    QTextStream ts(&file);
    ts.setEncoding(QTextStream::UnicodeUTF8);
    
    ts << "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">" << endl; 
    ts << "<html>" << endl;
    ts << "<head>" << endl;
    ts << "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">" << endl;
    
    ts << "<title>" << url.fileName() << "</title>" << endl;
    ts << "</head>" << endl;
    ts << "<body>" << endl;
    
    ts << "<table cols=\"3\" border=\"0\" cellspacing=\"1\" cellpadding=\"2\" bgcolor=\"silver\">" << endl;    

    ts << "<tr height=" << QString::number(g->horizontalHeader()->height()) << ">" << endl;
    ts << "<td " << hstyle0 << "></td>" << endl; 
    ts << "<td " << hstyle1 << "><p>" << g->horizontalHeader()->label(0) << "</p></td>" << endl;        
    ts << "<td " << hstyle2 << "><p>" + g->horizontalHeader()->label(1) << "</p></td>" << endl;
    ts << "</tr>" << endl;
    
    int i = 0;
    int r = g->numRows();
    while (i < r)
    {
      ts << "<tr height=" << QString::number(g->rowHeight(i)) << ">" << endl;
      ts << "<td " << hstyle0 << "><p>" << QString::number(i + 1) << "</p></td>" << endl; 
      ts << "<td " << style1 << "><p>" << g->text(i, 0) << "</p></td>" << endl;        
      ts << "<td " << style2 << "><p>" << g->text(i, 1) << "</p></td>" << endl;   
      ts << "</tr>" << endl;
      i++;         
    }

    ts << "</table>" << endl;
    ts << "</body>" << endl;
    ts << "</html>" << endl;   
  }  

  if (url.path().right(5) != ".html")    
  {
    doc_url = url;
    setModified(false);
  }
  return true;
}

void KWordQuizDoc::deleteContents()
{
}

void KWordQuizDoc::slotModifiedOnDisk( const QString & path)
{
  /*@todo this code doesn't work very well. Have to look in more detail on how Kate does it.
  if (doc_url.path() == path)
  {
    QString str = i18n("The file %1 was changed (modified) on disc by another program!\n\n").arg(doc_url.fileName());    
    int i = KMessageBox::warningYesNoCancel(0, str + i18n("Do you want to reload the modified file? Data loss may occur."),QString::null,i18n("Reload"),i18n("Do Not Reload"));
    if ( i == KMessageBox::Yes)
      openDocument(doc_url);
  }
  */
}

#include "kwordquizdoc.moc"