/*

* All rights reserved.

* See the COPYING file for more information.

*/

#include <Swift/QtUI/QtAboutWidget.h>

#include <QCoreApplication>

#include <QFile>

#include <QIcon>

#include <QLabel>

#include <QPushButton>

#include <QTextEdit>

#include <QTextStream>

#include <QVBoxLayout>

#include <QtGlobal>

#include <Swiften/Base/Log.h>

#include <Swiften/Base/Platform.h>

#include <Swift/QtUI/QtSwiftUtil.h>

#include <Swift/QtUI/QtUISettingConstants.h>

#include <Swift/QtUI/QtUpdateFeedSelectionDialog.h>

#include <Swift/QtUI/SwiftUpdateFeeds.h>

namespace Swift {

#ifndef Q_OS_MAC

setWindowTitle(QString(tr("About %1")).arg("Swift"));

#endif

setWindowIcon(QIcon(":/logo-icon-16.png"));

resize(180, 240);

QVBoxLayout *mainLayout = new QVBoxLayout(this);

mainLayout->setAlignment(Qt::AlignHCenter);

setLayout(mainLayout);

QLabel* iconLabel = new QLabel(this);

iconLabel->setPixmap(QIcon(":/logo-shaded-text.256.png").pixmap(90, 90));

iconLabel->setAlignment(Qt::AlignHCenter);

mainLayout->addWidget(iconLabel);

QLabel* appNameLabel = new QLabel("<center><font size='+1'><b>" + QCoreApplication::applicationName() + "</b></font></center>", this);

mainLayout->addWidget(appNameLabel);

QLabel* versionLabel = new QLabel((QString("<center><font size='-1'>") + tr("Version %1") + "</font></center><center><font size='-1'><br/>" + QString(tr("Built with Qt %2")) + QString("<br/>") + QString(tr("Running with Qt %3")) + "</font></center>").arg(QCoreApplication::applicationVersion()).arg(QT_VERSION_STR).arg(qVersion()));

versionLabel->setTextInteractionFlags(Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard);

mainLayout->addWidget(versionLabel);

if (QCoreApplication::translate("TRANSLATION_INFO", "TRANSLATION_AUTHOR") != "TRANSLATION_AUTHOR") {

mainLayout->addWidget(new QLabel(QString("<center><font size='-1'>") + QString(tr("Using the English translation by\n%1")).arg(QCoreApplication::translate("TRANSLATION_INFO", "TRANSLATION_AUTHOR")).replace("\n", "<br/>") + "</font></center>", this));

}

QCoreApplication::translate("TRANSLATION_INFO", "TRANSLATION_LICENSE", "This string contains the license under which this translation is licensed. We ask you to license the translation under the BSD license. Please read http://www.opensource.org/licenses/bsd-license.php, and if you agree to release your translation under this license, use the following (untranslated) text: 'This translation is licensed under the BSD License. See http://www.opensource.org/licenses/bsd-license.php'");

#if defined(SWIFTEN_PLATFORM_WINDOWS) || defined(SWIFTEN_PLATFORM_MACOSX)

QPushButton* licenseButton = new QPushButton(tr("View License"), this);

mainLayout->addWidget(licenseButton);

connect(licenseButton, SIGNAL(clicked()), this, SLOT(handleLicenseClicked()));

QPushButton* changelogButton = new QPushButton(tr("View Changes"), this);

mainLayout->addWidget(changelogButton);

connect(changelogButton, SIGNAL(clicked()), this, SLOT(handleChangelogClicked()));

#else

// Some Linux desktops have dialog window decorations without close window buttons.

// This code adds a dedicated button to close the about window dialog.

QHBoxLayout* buttonLayout = new QHBoxLayout();

mainLayout->addLayout(buttonLayout);

QPushButton* licenseButton = new QPushButton(tr("View License"), this);

buttonLayout->addWidget(licenseButton);

connect(licenseButton, SIGNAL(clicked()), this, SLOT(handleLicenseClicked()));

QPushButton* changelogButton = new QPushButton(tr("View Changes"), this);

buttonLayout->addWidget(changelogButton);

connect(changelogButton, SIGNAL(clicked()), this, SLOT(handleChangelogClicked()));

buttonLayout->addItem(new QSpacerItem(20,20));

QPushButton* closeButton = new QPushButton(tr("Close"), this);

}

void QtAboutWidget::handleChangelogClicked() {

openPlainTextWindow(":/ChangeLog.md");

}

void QtAboutWidget::handleChangeUpdateChannelClicked() {

auto feedSelectionDialog = new QtUpdateFeedSelectionDialog(settingsProvider_);

feedSelectionDialog->show();

}

void QtAboutWidget::openPlainTextWindow(const QString& path) {

QTextEdit* text = new QTextEdit();

text->setAttribute(Qt::WA_DeleteOnClose);

text->setReadOnly(true);

QFile file(path);

if (file.open(QIODevice::ReadOnly)) {

QTextStream in(&file);

in.setCodec("UTF-8");

text->setPlainText(in.readAll());

file.close();

text->resize(500, 600);

text->show();

text->activateWindow();

}

else {

SWIFT_LOG(error) << "Failed to open " << Q2PSTRING(path) << "." << std::endl;

}

}

if (settingsProvider_->getSetting(QtUISettingConstants::ENABLE_SOFTWARE_UPDATES)) {

if (!settingsProvider_->getSetting(QtUISettingConstants::SOFTWARE_UPDATE_CHANNEL).empty()) {

QString updateFeedDescription;

auto addUpdateFeedDialogLink = false;

if (settingsProvider_->getSetting(QtUISettingConstants::SOFTWARE_UPDATE_CHANNEL) == UpdateFeeds::StableChannel) {

updateFeedDescription = tr("You are receiving updates from the Stable update channel.");

addUpdateFeedDialogLink = true;

}

else if (settingsProvider_->getSetting(QtUISettingConstants::SOFTWARE_UPDATE_CHANNEL) == UpdateFeeds::DevelopmentChannel) {

updateFeedDescription = tr("You are receiving updates from the Development update channel.");

addUpdateFeedDialogLink = true;

}

else if (settingsProvider_->getSetting(QtUISettingConstants::SOFTWARE_UPDATE_CHANNEL) == UpdateFeeds::TestingChannel) {

updateFeedDescription = tr("You are receiving updates from the Testing update channel.");

addUpdateFeedDialogLink = true;

}

auto updateFeedDialogLink = QString( addUpdateFeedDialogLink ? "<a href=\"#\">%1</a>" : "" ).arg(tr("Change the update channel."));

}

}

}

}