/****************************************************************************
* MeshLab                                                           o o     *
* An extendible mesh processor                                    o     o   *
*                                                                _   O  _   *
* Copyright(C) 2005, 2006                                          \/)\/    *
* Visual Computing Lab                                            /\/|      *
* ISTI - Italian National Research Council                           |      *
*                                                                    \      *
* All rights reserved.                                                      *
*                                                                           *
* 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.                                       *
*                                                                           *
* 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 General Public License (http://www.gnu.org/licenses/gpl.txt)          *
* for more details.                                                         *
*                                                                           *
****************************************************************************/

#include <Qt>
#include <QtGui>

#include "meshio.h"

#include <lib3ds/file.h>
#include "import_3ds.h"
#include <wrap/io_trimesh/export_3ds.h>

#include <wrap/io_trimesh/export_obj.h>
#include <wrap/io_trimesh/export_vrml.h>
#include <wrap/io_trimesh/export_dxf.h>

#include <wrap/io_trimesh/import_obj.h>
#include <wrap/io_trimesh/import_off.h>
#include <wrap/io_trimesh/import_ptx.h>

#include <wrap/io_trimesh/export.h>
#include <wrap/io_trimesh/io_mask.h>

#include <QMessageBox>

using namespace std;
using namespace vcg;




bool ExtraMeshIOPlugin::open(const QString &formatName, const QString &fileName, MeshModel &m, int& mask, const RichParameterSet &, CallBackPos *cb, QWidget *parent)
{
	// initializing mask
  mask = 0;
	
	// initializing progress bar status
	if (cb != NULL)		(*cb)(0, "Loading...");

	QString errorMsgFormat = "Error encountered while loading file:\n\"%1\"\n\nError details: %2";
	QString error_2MsgFormat = "Error encountered while loading file:\n\"%1\"\n\n File with more than a mesh.\n Load only the first!";

	string filename = QFile::encodeName(fileName).constData ();
  //string filename = fileName.toUtf8().data();

	bool normalsUpdated = false;

	if (formatName.toUpper() == tr("3DS"))
	{
		vcg::tri::io::_3dsInfo info;	
		info.cb = cb;
		Lib3dsFile *file = NULL;
		vcg::tri::io::Importer3DS<CMeshO>::LoadMask(filename.c_str(), file, info);
    m.Enable(info.mask);
		
		int result = vcg::tri::io::Importer3DS<CMeshO>::Open(m.cm, filename.c_str(), file, info);
		if (result != vcg::tri::io::Importer3DS<CMeshO>::E_NOERROR)
		{
			QMessageBox::warning(parent, tr("3DS Opening Error"), errorMsgFormat.arg(fileName, vcg::tri::io::Importer3DS<CMeshO>::ErrorMsg(result)));
			return false;
		}

		if(info.mask & vcg::tri::io::Mask::IOM_WEDGNORMAL)
			normalsUpdated = true;

		mask = info.mask;
	}

	// verify if texture files are present
	QString missingTextureFilesMsg = "The following texture files were not found:\n";
	bool someTextureNotFound = false;
	for ( unsigned textureIdx = 0; textureIdx < m.cm.textures.size(); ++textureIdx)
	{
		FILE* pFile = fopen (m.cm.textures[textureIdx].c_str(), "r");
		if (pFile == NULL)
		{
			missingTextureFilesMsg.append("\n");
			missingTextureFilesMsg.append(m.cm.textures[textureIdx].c_str());
			someTextureNotFound = true;
		}
		else
			fclose (pFile);
	}
	if (someTextureNotFound)
		QMessageBox::warning(parent, tr("Missing texture files"), missingTextureFilesMsg);

	vcg::tri::UpdateBounding<CMeshO>::Box(m.cm);					// updates bounding box
	if (!normalsUpdated) 
		vcg::tri::UpdateNormals<CMeshO>::PerVertex(m.cm);		// updates normals

	if (cb != NULL)	(*cb)(99, "Done");

	return true;
}

bool ExtraMeshIOPlugin::save(const QString &formatName, const QString &fileName, MeshModel &m, const int mask, const RichParameterSet &, vcg::CallBackPos *cb, QWidget *parent)
{
	QString errorMsgFormat = "Error encountered while exporting file %1:\n%2";
	string filename = QFile::encodeName(fileName).constData ();
  //string filename = fileName.toUtf8().data();
	string ex = formatName.toUtf8().data();
	
	if(formatName.toUpper() == tr("3DS"))
	{
		int result = vcg::tri::io::Exporter3DS<CMeshO>::Save(m.cm,filename.c_str(),mask,cb);
		if(result!=0)
		{
			QMessageBox::warning(parent, tr("Saving Error"), errorMsgFormat.arg(fileName, vcg::tri::io::Exporter3DS<CMeshO>::ErrorMsg(result)));
			return false;
		}
		return true;
	}
	else 
  assert(0); // unknown format
  return false;
}

/*
	returns the list of the file's type which can be imported
*/
QList<MeshIOInterface::Format> ExtraMeshIOPlugin::importFormats() const
{
	QList<Format> formatList;
	formatList << Format("3D-Studio File Format"		,tr("3DS"));
	return formatList;
}

/*
	returns the list of the file's type which can be exported
*/
QList<MeshIOInterface::Format> ExtraMeshIOPlugin::exportFormats() const
{
	QList<Format> formatList;
	formatList << Format("3D-Studio File Format"		,tr("3DS"));
	return formatList;
}

/*
	returns the mask on the basis of the file's type. 
	otherwise it returns 0 if the file format is unknown
*/
void ExtraMeshIOPlugin::GetExportMaskCapability(QString &format, int &capability, int &defaultBits) const
{
	if(format.toUpper() == tr("3DS")){capability=defaultBits= vcg::tri::io::Exporter3DS<CMeshO>::GetExportMaskCapability();}
	return;
}

Q_EXPORT_PLUGIN(ExtraMeshIOPlugin)