#include "Utilities.h"
#include <QSettings>

Utilities *Utilities::instance() {
    static Utilities *self = nullptr;
    if (self == nullptr) {
        self = new Utilities();
    }
    return self;
}

Utilities *Utilities::create(QQmlEngine *, QJSEngine *) {
    auto ret = instance();
    QJSEngine::setObjectOwnership(ret, QJSEngine::CppOwnership);
    return ret;
}

Utilities::Utilities(QObject *parent) : QObject{parent} {
}

QRect Utilities::desktopAvailableGeometry(QQuickWindow *window) {
    return window->screen()->availableGeometry();
}

QUrl Utilities::getUrlByFilePath(const QString &path) {
    return QUrl::fromLocalFile(path);
}

bool Utilities::isMacos() {
#if defined(Q_OS_MACOS)
    return true;
#else
    return false;
#endif
}

bool Utilities::isWin() {
#if defined(Q_OS_WIN)
    return true;
#else
    return false;
#endif
}

int Utilities::windowBuildNumber() {
#if defined(Q_OS_WIN)
    QSettings regKey{QString::fromUtf8(R"(HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion)"),
                     QSettings::NativeFormat};
    if (regKey.contains(QString::fromUtf8("CurrentBuildNumber"))) {
        auto buildNumber = regKey.value(QString::fromUtf8("CurrentBuildNumber")).toInt();
        return buildNumber;
    }
#endif
    return -1;
}

bool Utilities::isWindows11OrGreater() {
    static QVariant var;
    if (var.isNull()) {
#if defined(Q_OS_WIN)
        auto buildNumber = windowBuildNumber();
        if (buildNumber >= 22000) {
            var = QVariant::fromValue(true);
            return true;
        }
#endif
        var = QVariant::fromValue(false);
        return false;
    } else {
        return var.toBool();
    }
}