/***************************************************************************
                          pwizprint.cpp  -  K Desktop Planetarium
                             -------------------
    begin                : Wed Aug 3 2011
    copyright            : (C) 2011 by Rafał Kułaga
    email                : rl.kulaga@gmail.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 "pwizprint.h"

#include "printingwizard.h"
#include "finderchart.h"
#include "kstars.h"
#include "loggingform.h"

#include <KMessageBox>
#include <KIO/StoredTransferJob>

#include <QFileDialog>
#include <QTemporaryFile>
#include <QtPrintSupport/QPrintPreviewDialog>
#include <QtPrintSupport/QPrinter>
#include <QtPrintSupport/QPrintDialog>
#include <QPointer>

PWizPrintUI::PWizPrintUI(PrintingWizard *wizard, QWidget *parent) : QFrame(parent),
    m_ParentWizard(wizard)
{
    setupUi(this);

    connect(previewButton, SIGNAL(clicked()), this, SLOT(slotPreview()));
    connect(printButton, SIGNAL(clicked()), this, SLOT(slotPrint()));
    connect(exportButton, SIGNAL(clicked()), this, SLOT(slotExport()));
}

void PWizPrintUI::slotPreview()
{
    QPointer<QPrintPreviewDialog> previewDlg( new QPrintPreviewDialog( m_ParentWizard->getPrinter()
                                                                        , KStars::Instance() ) );
    connect(previewDlg, SIGNAL(paintRequested(QPrinter*)), SLOT(slotPrintPreview(QPrinter*)));
    previewDlg->exec();
    delete previewDlg;
}

void PWizPrintUI::slotPrintPreview(QPrinter *printer)
{
    printDocument(printer);
}

void PWizPrintUI::slotPrint()
{
    QPointer<QPrintDialog> dialog( new QPrintDialog( m_ParentWizard->getPrinter()
                                                     , KStars::Instance() ) );
    if(dialog->exec() == QDialog::Accepted)
    {
        printDocument(m_ParentWizard->getPrinter());
    }
    delete dialog;
}

void PWizPrintUI::printDocument(QPrinter *printer)
{
    m_ParentWizard->getFinderChart()->print(printer);
}

void PWizPrintUI::slotExport()
{
    QUrl url = QFileDialog::getSaveFileUrl(KStars::Instance(), i18n("Export"), QUrl(QDir::homePath()), "application/pdf application/postscript application/vnd.oasis.opendocument.text");
    //User cancelled file selection dialog - abort image export
    if(url.isEmpty())
    {
        return;
    }

    //Warn user if file exists!
    if(QFile::exists(url.toLocalFile()))
    {
        int r=KMessageBox::warningContinueCancel(parentWidget(),
                i18n( "A file named \"%1\" already exists. Overwrite it?" , url.fileName()),
                i18n( "Overwrite File?" ),
                KStandardGuiItem::overwrite() );
        if(r == KMessageBox::Cancel)
            return;
    }

    QString urlStr = url.url();
    if(!urlStr.contains(QDir::separator()))
    {
        urlStr = QDir::homePath() + '/' + urlStr;
    }

    QTemporaryFile tmpfile;
    tmpfile.open();
    QString fname;

    if(url.isValid())
    {
        if(url.isLocalFile())
        {
            fname = url.toLocalFile();
        }

        else
        {
            fname = tmpfile.fileName();
        }

        //Determine desired image format from filename extension
        QString ext = fname.mid(fname.lastIndexOf(".") + 1);
        if(ext == "pdf" || ext == "ps") {
            m_ParentWizard->getFinderChart()->writePsPdf(fname);
        } else if(ext == "odt") {
            m_ParentWizard->getFinderChart()->writeOdt(fname);
        } else {
            return;
        }

        if(tmpfile.fileName() == fname)
        {
            //attempt to upload image to remote location
            if (KIO::storedHttpPost(&tmpfile, url )->exec() == false)
            //if(!KIO::NetAccess::upload(tmpfile.fileName(), url, this))
            {
                QString message = i18n( "Could not upload file to remote location: %1", url.url() );
                KMessageBox::sorry( 0, message, i18n( "Could not upload file" ) );
            }
        }
    }
}
