#include "r_version.h"
#include "core/Cutter.h"
#include "AboutDialog.h"

#include "ui_AboutDialog.h"
#include "R2PluginsDialog.h"
#include "common/Configuration.h"

#include <QUrl>
#include <QTimer>
#include <QEventLoop>
#include <QJsonObject>
#include <QProgressBar>
#include <QProgressDialog>
#include <UpdateWorker.h>
#include <QtNetwork/QNetworkRequest>
#include <QtNetwork/QNetworkAccessManager>

#include "CutterConfig.h"

AboutDialog::AboutDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::AboutDialog)
{
    ui->setupUi(this);
    setWindowFlags(windowFlags() & (~Qt::WindowContextHelpButtonHint));
    ui->logoSvgWidget->load(Config()->getLogoFile());

    QString aboutString(tr("Version") + " " CUTTER_VERSION_FULL "<br/>"
                        + tr("Using r2-") + R2_GITTAP + "<br/>"
                        + buildQtVersionString()
                        + "<p><b>" + tr("Optional Features:") + "</b><br/>"
                        + QString("Python: %1<br/>").arg(
#ifdef CUTTER_ENABLE_PYTHON
                            "ON"
#else
                            "OFF"
#endif
                        )
                        + QString("Python Bindings: %2</p>").arg(
#ifdef CUTTER_ENABLE_PYTHON_BINDINGS
                            "ON"
#else
                            "OFF"
#endif
                        )
                        + "<h2>" + tr("License") + "</h2>"
                        + tr("This Software is released under the GNU General Public License v3.0")
                        + "<h2>" + tr("Authors") + "</h2>"
                        + tr("Cutter is developed by the community and maintained by its core and development teams.<br/>")
                        + tr("Check our <a href='https://github.com/radareorg/cutter/graphs/contributors'>contributors page</a> for the full list of contributors."));
    ui->label->setText(aboutString);

    QSignalBlocker s(ui->updatesCheckBox);
    ui->updatesCheckBox->setChecked(Config()->getAutoUpdateEnabled());

    if (!CUTTER_UPDATE_WORKER_AVAILABLE) {
        ui->updatesCheckBox->hide();
        ui->checkForUpdatesButton->hide();
    }
}

AboutDialog::~AboutDialog() {}

void AboutDialog::on_buttonBox_rejected()
{
    close();
}

void AboutDialog::on_showVersionButton_clicked()
{
    QMessageBox popup(this);
    popup.setWindowTitle(tr("radare2 version information"));
    popup.setTextInteractionFlags(Qt::TextSelectableByMouse);
    auto versionInformation = Core()->getVersionInformation();
    popup.setText(versionInformation);
    popup.exec();
}

void AboutDialog::on_showPluginsButton_clicked()
{
    R2PluginsDialog dialog(this);
    dialog.exec();
}

void AboutDialog::on_checkForUpdatesButton_clicked()
{
#if CUTTER_UPDATE_WORKER_AVAILABLE
    UpdateWorker updateWorker;

    QProgressDialog waitDialog;
    QProgressBar *bar = new QProgressBar(&waitDialog);
    bar->setMaximum(0);

    waitDialog.setBar(bar);
    waitDialog.setLabel(new QLabel(tr("Checking for updates..."), &waitDialog));

    connect(&updateWorker, &UpdateWorker::checkComplete, &waitDialog, &QProgressDialog::cancel);
    connect(&updateWorker, &UpdateWorker::checkComplete,
    [&updateWorker](const QVersionNumber & version, const QString & error) {
        if (!error.isEmpty()) {
            QMessageBox::critical(nullptr, tr("Error!"), error);
        } else {
            if (version <= UpdateWorker::currentVersionNumber()) {
                QMessageBox::information(nullptr, tr("Version control"), tr("Cutter is up to date!"));
            } else {
                updateWorker.showUpdateDialog(false);
            }
        }
    });

    updateWorker.checkCurrentVersion(7000);
    waitDialog.exec();
#endif
}

void AboutDialog::on_updatesCheckBox_stateChanged(int)
{
    Config()->setAutoUpdateEnabled(!Config()->getAutoUpdateEnabled());
}

static QString compilerString()
{
#if defined(Q_CC_CLANG) // must be before GNU, because clang claims to be GNU too
    QString isAppleString;
#if defined(__apple_build_version__) // Apple clang has other version numbers
    isAppleString = QLatin1String(" (Apple)");
#endif
    return QLatin1String("Clang " ) + QString::number(__clang_major__) + QLatin1Char('.')
           + QString::number(__clang_minor__) + isAppleString;
#elif defined(Q_CC_GNU)
    return QLatin1String("GCC " ) + QLatin1String(__VERSION__);
#elif defined(Q_CC_MSVC)
    if (_MSC_VER > 1999)
        return QLatin1String("MSVC <unknown>");
    if (_MSC_VER >= 1910)
        return QLatin1String("MSVC 2017");
    if (_MSC_VER >= 1900)
        return QLatin1String("MSVC 2015");
#endif
    return QLatin1String("<unknown compiler>");
}

QString AboutDialog::buildQtVersionString(void)
{
    return tr("Based on Qt %1 (%2, %3 bit)").arg(QLatin1String(qVersion()),
                                                 compilerString(),
                                                 QString::number(QSysInfo::WordSize));
}
