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

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} {
}

bool Utilities::isSoftware() {
    return QQuickWindow::sceneGraphBackend() == "software";
}

void Utilities::deleteLater(QObject *p) {
    if (p) {
        p->deleteLater();
    }
}

QColor Utilities::withOpacity(const QColor &color, qreal opacity) {
    int alpha = qRound(opacity * 255) & 0xff;
    return QColor::fromRgba((alpha << 24) | (color.rgba() & 0xffffff));
}

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

QString Utilities::getWallpaperFilePath() {
#if defined(Q_OS_WIN)
    wchar_t path[MAX_PATH] = {};
    if (::SystemParametersInfoW(SPI_GETDESKWALLPAPER, MAX_PATH, path, FALSE) == FALSE) {
        return {};
    }
    return QString::fromWCharArray(path);
#elif defined(Q_OS_LINUX)
    auto type = QSysInfo::productType();
    if (type == "uos") {
        QProcess process;
        QStringList args;
        args << "--session";
        args << "--type=method_call";
        args << "--print-reply";
        args << "--dest=com.deepin.wm";
        args << "/com/deepin/wm";
        args << "com.deepin.wm.GetCurrentWorkspaceBackgroundForMonitor";
        args << QString("string:'%1'").arg(currentTimestamp());
        process.start("dbus-send", args);
        process.waitForFinished();
        QByteArray result = process.readAllStandardOutput().trimmed();
        int startIndex = result.indexOf("file:///");
        if (startIndex != -1) {
            auto path = result.mid(startIndex + 7, result.length() - startIndex - 8);
            return path;
        }
    }
#elif defined(Q_OS_MACOS)
    QProcess process;
    QStringList args;
    args << "-e";
    args << R"(tell application "Finder" to get POSIX path of (desktop picture as alias))";
    process.start("osascript", args);
    process.waitForFinished();
    QByteArray result = process.readAllStandardOutput().trimmed();
    if (result.isEmpty()) {
        return "/System/Library/CoreServices/DefaultDesktop.heic";
    }
    return result;
#else
    return {};
#endif
}

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();
    }
}