/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            resumeparser.cc
 *
 *  Mon Oct  1 11:17:35 CEST 2007
 *  Copyright 2007 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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.
 *
 *  Pracro 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "formatparser.h"

#include <QSqlRecord>
#include <QVariant>
#include <string.h>

#include "lua.h"

static QString format_parser_lua(QString format, QVector< Widget *> widgets)
{
  LUA lua(&widgets);

  return lua.runParser(format);
}

static QString format_parser_pracro(QString format, QVector< Widget *> widgets)
{
  QString resume;
  QString var;

  QChar *p = format.data();
  QChar *theend = p + format.size();
  while(p < theend) {
    switch((*p).toLatin1()) {
    case '$':
      p++;
      switch((*p).toLatin1()) {
      case '$':
        resume.append(*p);
        break;

      case '{':
        p++;
        var = "";
        // Parser
        while(p < theend && *p != '}') {
          var.append(*p);
          p++;
        }
        {
          QVector< Widget* >::iterator i = widgets.begin();
          while (i != widgets.end()) {
            Widget* w = *i;
            if(w->getName() == var) resume += w->getValue();
            i++;
          }
        }
        break;

      default:
        resume.append(*p);
        break;
      }
      p++;
      break;

    case '\\':
      p++;
      switch((*p).toLatin1()) {
      case 't':
        resume.append('\t');
        break;
      case 'n':
        resume.append('\n');
        break;
      case 'r':
        resume.append('\r');
        break;
      case '\\':
      default:
        resume.append(*p);
        break;
      }
      p++;
     break;

    default:
      resume.append(QChar(*p));
      p++;
      break;
    }
  }

  return resume;
}


QString format_parser(QString format, QSqlQuery &query)
{
  QString resume;
  QString var;

  QChar *p = format.data();
  QChar *theend = p + format.size();
  while(p < theend) {
    switch((*p).toLatin1()) {
    case '$':
      p++;
      switch((*p).toLatin1()) {
      case '$':
        resume.append(*p);
        break;

      case '{':
        p++;
        var = "";
        // Parser
        while(p < theend && *p != '}') {
          var.append(*p);
          p++;
        }
        {
          int idx = query.record().indexOf(var);
          if(idx == -1) {
            printf("Unknown field in format string %s\n", var.toStdString().c_str());
          } else {
            resume += query.value(idx).toString();
          }
        }
        break;

      default:
        resume.append(*p);
        break;
      }
      p++;
      break;

    case '\\':
      p++;
      switch((*p).toLatin1()) {
      case 't':
        resume.append('\t');
        break;
      case 'n':
        resume.append('\n');
        break;
      case 'r':
        resume.append('\r');
        break;
      case '\\':
      default:
        resume.append(*p);
        break;
      }
      p++;
     break;

    default:
      resume.append(QChar(*p));
      p++;
      break;
    }
  }

  return resume;
}

QString format_parser(QString format, QVector< Widget *> widgets, QString language)
{
  if(language == "pracro") return format_parser_pracro(format, widgets);
  if(language == "lua") return format_parser_lua(format, widgets);
  return "";
}