#include <qfiledialog.h>

#include <qmessagebox.h>

#include "exports.h"

#include "file.h"

#include "linkablemapobj.h"

#include "misc.h"

#include "mainwindow.h"

#include "xsltproc.h"

extern Main *mainWindow;

extern QDir vymBaseDir;

ExportBase::ExportBase()

{

	indentPerDepth="  ";

	// Create tmpdir

	tmpDir.setPath (makeUniqueDir("/tmp/vym-XXXXXX"));

}

ExportBase::~ExportBase()

{

	// Remove tmpdir

	removeDir (tmpDir);

}

void ExportBase::setDir(const QString &p)

{

	outputDir=p;

}

void ExportBase::setFile (const QString &p)

{

	outputFile=p;

}

void ExportBase::setMapCenter(MapCenterObj *mc)

{

	mapCenter=mc;

}

void ExportBase::setCaption (const QString &s)

{

	caption=s;

}

void ExportBase::addFilter(const QString &s)

{

	filter=s;

}

bool ExportBase::execDialog()

{

	if (mapCenter && mapCenter->getMapEditor())

	{

		QFileDialog *fd=new QFileDialog( mapCenter->getMapEditor(), caption);

		fd->addFilter (filter);

		fd->setCaption(caption);

		fd->setMode( QFileDialog::AnyFile );

		fd->show();

		if ( fd->exec() == QDialog::Accepted )

		{

			if (QFile (fd->selectedFile()).exists() )

			{

				QMessageBox mb( __VYM,

					QObject::tr("The file %1 exists already.\nDo you want to overwrite it?").arg(fd->selectedFile()), 

				QMessageBox::Warning,

				QMessageBox::Yes | QMessageBox::Default,

				QMessageBox::Cancel | QMessageBox::Escape,

				QMessageBox::NoButton );

				mb.setButtonText( QMessageBox::Yes, QObject::tr("Overwrite") );

				mb.setButtonText( QMessageBox::No, QObject::tr("Cancel"));

				ExportBase ex;

				switch( mb.exec() ) 

				{

					case QMessageBox::Yes:

						// save 

						break;;

					case QMessageBox::Cancel:

						// return, do nothing

						return false;

						break;

				}

			}

			outputFile=fd->selectedFile();

			return true;

		}

	}

	return false;

}

QString ExportBase::getSectionString(BranchObj *bostart)

{

	// Make prefix like "2.5.3" for "bo:2,bo:5,bo:3"

	QString r;

	BranchObj *bo=bostart;

	int depth=bo->getDepth();

	while (depth>0)

	{

		r=QString("%1").arg(1+bo->getNum(),0,10)+"." + r;

		bo=(BranchObj*)(bo->getParObj());

		depth=bo->getDepth();

	}	

	if (r.isEmpty())

		return r;

	else	

		return r + " ";

}

void ExportASCII::doExport()

{

	QFile file (outputFile);

	if ( !file.open( IO_WriteOnly ) )

	{

		// FIXME experimental, testing

		qWarning ("ExportBase::exportXML  couldn't open "+outputFile);

		return;

	}

	QTextStream ts( &file );	// use LANG decoding here...

	// Main loop over all branches

	QString s;

	QString actIndent("");

	int i;

	uint j;

	BranchObj *bo;

	bo=mapCenter->first();

	while (bo) 

	{

		// Make indentstring

		for (i=0;i<bo->getDepth();i++) actIndent+= indentPerDepth;

		if (bo->getDepth()==0)

		{

			ts << (bo->getHeading()+ "\n");

			for (j=0;j<bo->getHeading().length();j++) ts<<"=";

			ts << "\n";

		} else 	if (bo->getDepth()==1)

			ts << ("\n"+getSectionString(bo) + bo->getHeading()+ "\n");

		else	if (bo->getDepth()==2)

			ts << (actIndent + " o " + bo->getHeading()+ "\n");

		else	

			ts << (actIndent + " - " + bo->getHeading()+ "\n");

		// If necessary, write note

		if (!bo->getNote().isEmpty())

		{

			s =bo->getNoteASCII();

			s=s.replace ("\n","\n"+actIndent);

			ts << (s+"\n\n");

		}

		bo=bo->next();

		actIndent="";

	}

	file.close();

}

void ExportTaskjuggler::doExport() 

{

	MapEditor *me=NULL;

	if (mapCenter) me=mapCenter->getMapEditor();

	if (me)

	{

		me->exportXML(tmpDir.path());

		//FIXME testing

		cout << "tmpDir="<<tmpDir.path()<<endl;

		XSLTProc p;

		p.setInputFile (tmpDir.path()+"/"+me->getMapName()+".xml");

		p.setOutputFile (outputFile);

		p.setXSLFile (vymBaseDir.path()+"/styles/vym2taskjuggler.xsl");

		p.process();

	}

}

void ExportLaTeX::doExport() 

{

	// Exports a map to a LaTex file.  

	// This file needs to be included 

	// or inported into a LaTex document

	// it will not add a preamble, or anything 

	// that makes a full LaTex document.

  QFile file (outputFile);

  if ( !file.open( IO_WriteOnly ) ) {

	QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Could not write %1").arg(outputFile));

	mainWindow->statusMessage(QString(QObject::tr("Export failed.")));

    return;

  }

  QTextStream ts( &file );	// use LANG decoding here...

  ts.setEncoding (QTextStream::UnicodeUTF8); // Force UTF8

  // Main loop over all branches

  QString s;

  // QString actIndent("");

  // int i;

  BranchObj *bo;

  bo=mapCenter->first();

  while (bo) {

    if (bo->getDepth()==0);

    else if (bo->getDepth()==1) {

      ts << ("\\chapter{" + bo->getHeading()+ "}\n");

    }

    else if (bo->getDepth()==2) {

      ts << ("\\section{" + bo->getHeading()+ "}\n");

    }

    else if (bo->getDepth()==3) {

      ts << ("\\subsection{" + bo->getHeading()+ "}\n");

    }

    else if (bo->getDepth()==4) {

      ts << ("\\subsubsection{" + bo->getHeading()+ "}\n");

    }

    else {

      ts << ("\\paragraph*{" + bo->getHeading()+ "}\n");

    }

    // If necessary, write note

    if (!bo->getNote().isEmpty()) {

      ts << (bo->getNoteASCII());

      ts << ("\n");

    }

    bo=bo->next();

   }

  file.close();

}

ExportOO::ExportOO()

{

	useSections=false;

}

ExportOO::~ExportOO()

{

}	

QString ExportOO::buildList (BranchObj *current)

{

    QString r;

    BranchObj *bo;

    uint i=0;

    bo=current->getFirstBranch();

    if (bo)

    {

        // Start list

        r+="<text:list text:style-name=\"L4\">\n";

        while (bo)

        {

            r+="<text:list-item><text:p >";

			r+=quotemeta(bo->getHeading());

			// If necessary, write note

			if (!bo->getNote().isEmpty())

				r+=bo->getNoteOpenDoc();

			r+="</text:p>";

			r+=buildList (bo);	// recursivly add deeper branches

            r+="</text:list-item>\n";

			i++;

			bo=current->getBranchNum(i);

        }

        r+="</text:list>\n";

    }

    return r;

}

void ExportOO::exportPresentation()

{

	QString allPages;

	// Insert new content

	content.replace ("<!-- INSERT TITLE -->",quotemeta(mapCenter->getHeading()));

	content.replace ("<!-- INSERT AUTHOR -->",quotemeta(mapCenter->getAuthor()));

	QString	onePage;

	QString list;

	BranchObj *sectionBO=mapCenter->getFirstBranch();

    int i=0;

	BranchObj *pagesBO;

    int j=0;

	// Walk sections

	while (sectionBO)

	{

		if (useSections)

		{

			// Add page with section title

			onePage=sectionTemplate;

			onePage.replace ("<!-- INSERT PAGE HEADING -->", quotemeta(sectionBO->getHeading() ) );

			allPages+=onePage;

		} else

		{

			i=-2;	// only use inner loop to 

			        // turn mainbranches into pages

			sectionBO=mapCenter;

		}

		// Walk mainpages

		pagesBO=sectionBO->getFirstBranch();

		j=0;

		while (pagesBO)

		{

			// Add page with list of items

			onePage=pageTemplate;

			onePage.replace ("<!-- INSERT PAGE HEADING -->", quotemeta (pagesBO->getHeading() ) );

			list=buildList (pagesBO);

			onePage.replace ("<!-- INSERT LIST -->", list);

			allPages+=onePage;

			j++;

			pagesBO=sectionBO->getBranchNum(j);

		}

		i++;

		sectionBO=mapCenter->getBranchNum(i);

	}

	content.replace ("<!-- INSERT PAGES -->",allPages);

	// Write modified content

	QFile f (contentFile);

    if ( !f.open( IO_WriteOnly ) ) 

	{

		QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Could not write %1").arg(contentFile));

		mainWindow->statusMessage(QString(QObject::tr("Export failed.")));

		return;

    }

    QTextStream t( &f );

    t << content;

    f.close();

	// zip tmpdir to destination

	zipDir (tmpDir,outputFile);	

}

bool ExportOO::setConfigFile (const QString &cf)

{

	configFile=cf;

	int i=cf.findRev ("/");

	if (i>=0) configDir=cf.left(i);

	SimpleSettings set;

	set.readSettings(configFile);

	// set paths

	templateDir=configDir+"/"+set.readEntry ("Template");

	QDir d (templateDir);

	if (!d.exists())

	{

		QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Check \"%1\" in\n%2").arg("Template="+set.readEntry ("Template")).arg(configFile));

		return false;

	}

	contentTemplateFile=templateDir+"content-template.xml";

	contentFile=tmpDir.path()+"/content.xml";

	pageTemplateFile=templateDir+"page-template.xml";

	sectionTemplateFile=templateDir+"section-template.xml";

	if (set.readEntry("useSections").contains("yes"))

		useSections=true;

	// Copy template to tmpdir

	system ("cp -r "+templateDir+"* "+tmpDir.path());

	// Read content-template

	if (!loadStringFromDisk (contentTemplateFile,content))

	{

		QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Could not read %1").arg(contentTemplateFile));

		return false;

	}

	// Read page-template

	if (!loadStringFromDisk (pageTemplateFile,pageTemplate))

	{

		QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Could not read %1").arg(pageTemplateFile));

		return false;

	}

	// Read section-template

	if (useSections && !loadStringFromDisk (sectionTemplateFile,sectionTemplate))

	{

		QMessageBox::critical (0,QObject::tr("Critical Export Error"),QObject::tr("Could not read %1").arg(sectionTemplateFile));

		return false;

	}

	return true;

}