/***************************************************************************
 *                                                                         *
 *   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 "kgpgmd5widget.h"

#include <QHBoxLayout>
#include <QClipboard>
#include <QLabel>
#include <QFile>
#include <QCryptographicHash>

#include <KApplication>
#include <KMessageBox>
#include <KLineEdit>
#include <KLocale>
#include <KLed>


Md5Widget::Md5Widget(QWidget *parent, const KUrl &url)
         : KDialog(parent)
{
    setCaption(i18n("MD5 Checksum"));
    setButtons(Apply | Close);
    setDefaultButton(Close);
    setButtonText(Apply, i18n("Compare MD5 with Clipboard"));

    QFile f(url.path());
    QCryptographicHash checkfile(QCryptographicHash::Md5);

    if (f.open(QIODevice::ReadOnly)) {
        checkfile.addData(f.readAll());
        f.close();
    }

    m_md5sum = QLatin1String( checkfile.result().toHex() );

    QWidget *page = new QWidget(this);

    QLabel *firstlabel = new QLabel(page);
    firstlabel->setText(i18n("MD5 sum for <b>%1</b> is:", url.fileName()));

    KLineEdit *md5lineedit = new KLineEdit(m_md5sum, page);
    md5lineedit->setReadOnly(true);

    m_led = new KLed(QColor(80, 80, 80), KLed::Off, KLed::Sunken, KLed::Circular, page);
    QSizePolicy policy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    policy.setVerticalStretch(0);
    policy.setHorizontalStretch(0);
    policy.setHeightForWidth(m_led->sizePolicy().hasHeightForWidth());
    m_led->setSizePolicy(policy);

    m_label = new QLabel(page);
    m_label->setText(i18n("<b>Unknown status</b>"));

    QHBoxLayout *ledlayout = new QHBoxLayout();
    ledlayout->addWidget(m_led);
    ledlayout->addWidget(m_label);

    QVBoxLayout *dialoglayout = new QVBoxLayout(page);
    dialoglayout->setMargin(marginHint());
    dialoglayout->setSpacing(spacingHint());
    dialoglayout->addWidget(firstlabel);
    dialoglayout->addWidget(md5lineedit);
    dialoglayout->addLayout(ledlayout);
    dialoglayout->addStretch();

    setMainWidget(page);

    connect(this, SIGNAL(applyClicked()), this, SLOT(slotApply()));
}

void Md5Widget::slotApply()
{
    QString text = KApplication::clipboard()->text().remove(QLatin1Char( ' ' ));
    if (!text.isEmpty())
    {
        if (text.length() != m_md5sum.length())
            KMessageBox::sorry(this, i18n("Clipboard content is not a MD5 sum."));
        else
        if (text == m_md5sum)
        {
            m_label->setText(i18n("<b>Correct checksum</b>, file is ok."));
            m_led->setColor(QColor(Qt::green));
            m_led->on();
        }
        else
        {
            m_label->setText(i18n("<b>Wrong checksum, <em>file corrupted</em></b>"));
            m_led->setColor(QColor(Qt::red));
            m_led->on();
        }
    }
}

#include "moc_kgpgmd5widget.cpp"