/* massXpert - the true massist's program.
   --------------------------------------
   Copyright(C) 2006,2007 Filippo Rusconi

   http://www.massxpert.org/massXpert

   This file is part of the massXpert project.

   The massxpert project is the successor to the "GNU polyxmass"
   project that is an official GNU project package(see
   www.gnu.org). The massXpert project is not endorsed by the GNU
   project, although it is released ---in its entirety--- under the
   GNU General Public License. A huge part of the code in massXpert
   is actually a C++ rewrite of code in GNU polyxmass. As such
   massXpert was started at the Centre National de la Recherche
   Scientifique(FRANCE), that granted me the formal authorization to
   publish it under this Free Software License.

   This software is free software; you can redistribute it and/or
   modify it under the terms of the GNU  General Public
   License version 3, as published by the Free Software Foundation.
   

   This software 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 this software; if not, write to the

   Free Software Foundation, Inc.,

   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/


/////////////////////// Qt includes
#include <QFile>
#include <QDebug>


/////////////////////// Local includes
#include "monomerSpec.hpp"


namespace massXpert
{

  void 
  MonomerSpec::setName(const QString &name)
  {
    m_name = name;
  }


  const QString &
  MonomerSpec::name()
  {
    return m_name;
  }

  void 
  MonomerSpec::setCode(const QString &code)
  {
    m_code = code;
  }


  const QString &
  MonomerSpec::code()
  {
    return m_code;
  }


  void 
  MonomerSpec::setRaster(const QString &raster)
  {
    m_raster = raster;
  }


  const QString &
  MonomerSpec::raster()
  {
    return m_raster;
  }


  void 
  MonomerSpec::setVector(const QString &vector)
  {
    m_vector = vector;
  }


  const QString &
  MonomerSpec::vector()
  {
    return m_vector;
  }


  void 
  MonomerSpec::setNameSound(const QString &sound)
  {
    m_nameSound = sound;
  }


  const QString &
  MonomerSpec::nameSound()
  {
    return m_nameSound;
  }


  void 
  MonomerSpec::setCodeSound(const QString &sound)
  {
    m_codeSound = sound;
  }


  const QString &
  MonomerSpec::codeSound()
  {
    return m_codeSound;
  }


  bool
  MonomerSpec::parseFile(QString & filePath,
			  QList<MonomerSpec *> *specList)
  {
    MonomerSpec *monomerSpec = 0;
  
    qint64 lineLength;

    QString line;
    QString temp;
 
    char buffer [1024];

    int percentSignIdx = 0;
    int pipeSignIdx = 0;

    Q_ASSERT(specList != 0);
  
    if (filePath.isEmpty())
      return false;
  
    QFile file(filePath);
  
    if (! file.open(QFile::ReadOnly)) 
      return false;

    // The lines we have to parse are of the following type:
    // A%alanine.svg|alanine.png
    // Any line starting with ' ' or '#' are not parsed.

    // Get the first line of the file. Next we enter in to a
    // while loop.

    lineLength = file.readLine(buffer, sizeof(buffer));

    while(lineLength != -1)
      {
	// The line is now in buffer, and we want to convert
	// it to Unicode by setting it in a QString.
	line = buffer;
      
	// The line that is in line should contain something like:
	// A%alanine.svg|alanine.png
	//
	// Note, however that lines beginning with either ' '(space) or
	// '\n'(newline) or '#' are comments.

	// Remove all the spaces from the borders: Whitespace means any
	// character for which QChar::isSpace() returns true. This
	// includes the ASCII characters '\t', '\n', '\v', '\f', '\r',
	// and ' '.

	line = line.trimmed();
            
	if(line.isEmpty() || line.startsWith('#', Qt::CaseInsensitive))
	  {
	    lineLength = file.readLine(buffer, sizeof(buffer));
	    continue;
	  }
      
	// Now some other checks. Remember the format of the line:
	// A%alanine.svg|alanine.png
      
	percentSignIdx = line.indexOf('%', 0, Qt::CaseInsensitive);
	pipeSignIdx = line.indexOf('|', 0, Qt::CaseInsensitive);
      
	if(percentSignIdx == -1 ||
	    line.count('%', Qt::CaseInsensitive) > 1 ||
	    line.count('|', Qt::CaseInsensitive) > 1)
	  return false;

	if(pipeSignIdx != -1)
	  if (percentSignIdx > pipeSignIdx)
	    return false;
      
	// OK, we finally can allocate a new MonomerSpec *.
	monomerSpec = new MonomerSpec();
      
	monomerSpec->m_code = line.left(percentSignIdx);
      
	//       qDebug() << __FILE__ << __LINE__
	// 		<< "m_code" << monomerSpec->m_code.toAscii();
      
	// Remove from the line the "A%" substring, as we do not need it
	// anymore.
	line.remove(0, percentSignIdx + 1)  ;

	if(pipeSignIdx == -1)
	  {
	    // If there was no pipe sign in the line, we have a single
	    // substring up to the end of the line.

	    if (line.endsWith(".png", Qt::CaseSensitive))
	      monomerSpec->m_raster = line;
	    else if (line.endsWith(".svg", Qt::CaseSensitive))
	      monomerSpec->m_vector = line;
	    else
	      {
		delete monomerSpec;
		return false;
	      }
	  }
	else
	  {
	    // There was a pipe sign indeed, we have to divide the
	    // remaining substring into two parts, before and after the
	    // '|'. 

	    // Extract the left substring.
	    temp = line.section('|', 0, 0);
	    if (temp.endsWith(".png", Qt::CaseSensitive))
	      monomerSpec->m_raster = temp;
	    else if (temp.endsWith(".svg", Qt::CaseSensitive))
	      monomerSpec->m_vector = temp;
	    else
	      {
		delete monomerSpec;
		return false;
	      }
	  
	    // Extract the right substring.
	    temp = line.section('|', 1, 1);
	    if (temp.endsWith(".png", Qt::CaseSensitive))
	      monomerSpec->m_raster = temp;
	    else if (temp.endsWith(".svg", Qt::CaseSensitive))
	      monomerSpec->m_vector = temp;
	    else
	      {
		delete monomerSpec;
		return false;
	      }
	  }

	specList->append(monomerSpec);
	lineLength = file.readLine(buffer, sizeof(buffer));
      }
  
    return true;
  }

} // namespace massXpert