/*
    SPDX-FileCopyrightText: 2009 Aaron Seigo <aseigo@kde.org>

    SPDX-License-Identifier: LGPL-2.0-or-later
*/

#include "appinterface.h"
#include <config-X11.h>

#include <QEventLoop>
#include <QTimer>

#include <Solid/Battery>
#include <Solid/Device>

#include <Plasma/Containment>
#include <Plasma/Corona>
#include <Plasma/PluginLoader>
#include <Plasma/Theme>

#ifdef Q_OS_WIN
#include <windows.h>
#endif

#if HAVE_X11
#include <X11/Xlib.h>
#include <fixx11h.h>
#endif

#include "debug.h"
#include "scriptengine.h"

using namespace Qt::StringLiterals;

namespace WorkspaceScripting
{
AppInterface::AppInterface(ScriptEngine *env)
    : QObject(env)
    , m_env(env)
{
    m_theme = new Plasma::Theme(this);
}

int AppInterface::screenCount() const
{
    return m_env->corona()->numScreens();
}

QJSValue AppInterface::screenGeometry(int screen) const
{
    QRectF rect = m_env->corona()->screenGeometry(screen);
    QJSValueList args({QJSValue(rect.x()), QJSValue(rect.y()), QJSValue(rect.width()), QJSValue(rect.height())});
    return m_env->globalObject().property(u"QRectF"_s).callAsConstructor(args);
}

QList<int> AppInterface::activityIds() const
{
    // FIXME: the ints could overflow since Applet::id() returns a uint,
    //       however QScript deals with QList<uint> very, very poorly
    const auto containments = m_env->corona()->containments();
    QList<int> activityIds;
    for (Plasma::Containment *c : containments) {
        if (!ScriptEngine::isPanel(c)) {
            activityIds.append(c->id());
        }
    }

    return activityIds;
}

QList<int> AppInterface::panelIds() const
{
    // FIXME: the ints could overflow since Applet::id() returns a uint,
    //       however QScript deals with QList<uint> very, very poorly
    QList<int> panels;

    for (const auto conts = m_env->corona()->containments(); Plasma::Containment * c : conts) {
        // qDebug() << "checking" << (QObject*)c << isPanel(c);
        if (ScriptEngine::isPanel(c)) {
            panels.append(c->id());
        }
    }

    return panels;
}

QString AppInterface::applicationVersion() const
{
    return qApp->applicationVersion();
}

QString AppInterface::platformVersion() const
{
    return QString(); // KDE::versionString();
}

int AppInterface::scriptingVersion() const
{
    return PLASMA_DESKTOP_SCRIPTING_VERSION;
}

QString AppInterface::theme() const
{
    return m_theme->themeName();
}

void AppInterface::setTheme(const QString &name)
{
    m_theme->setThemeName(name);
}

QString AppInterface::locale() const
{
    return QLocale::system().name();
}

QString AppInterface::language() const
{
    return QLocale::system().languageToString(QLocale::system().language());
}

QString AppInterface::languageId() const
{
    return QLocale::system().bcp47Name().section(QLatin1Char('-'), 0, 0);
}

bool AppInterface::multihead() const
{
    return false;
}

int AppInterface::multiheadScreen() const
{
    return 0;
}

void AppInterface::lockCorona(bool locked)
{
    m_env->corona()->setImmutability(locked ? Plasma::Types::UserImmutable : Plasma::Types::Mutable);
}

bool AppInterface::coronaLocked() const
{
    return m_env->corona()->immutability() != Plasma::Types::Mutable;
}

void AppInterface::sleep(int ms)
{
    Q_UNUSED(ms)
    // TODO KF6 remove

    // Sleep was implemented with a nested event loop which would cause nested
    // event processing from QML and offer a wide array of sources for
    // segfaulting. There isn't really a need to sleep from the scripting API,
    // so it was turned no-op.
    qCWarning(PLASMASHELL) << "Plasma scripting sleep() is deprecated and does nothing!";
}

bool AppInterface::hasBattery() const
{
    QList<Solid::Device> batteryDevices = Solid::Device::listFromType(Solid::DeviceInterface::Battery);

    for (auto device : batteryDevices) {
        Solid::Battery *battery = device.as<Solid::Battery>();
        // check for _both_ primary and power supply status
        // apparently some devices misreport as "primary", and we don't
        // want to trigger on just having UPC connected to a desktop box
        if (battery && battery->type() == Solid::Battery::PrimaryBattery && battery->isPowerSupply()) {
            return true;
        }
    }

    return false;
}

QStringList AppInterface::knownWidgetTypes() const
{
    if (m_knownWidgets.isEmpty()) {
        QStringList widgets;
        const QList<KPluginMetaData> plugins = Plasma::PluginLoader::self()->listAppletMetaData(QString());

        for (const auto &plugin : plugins) {
            widgets.append(plugin.pluginId());
        }

        const_cast<AppInterface *>(this)->m_knownWidgets = widgets;
    }

    return m_knownWidgets;
}

QStringList AppInterface::knownActivityTypes() const
{
    return knownContainmentTypes(QStringLiteral("Desktop"));
}

QStringList AppInterface::knownPanelTypes() const
{
    return knownContainmentTypes(QStringLiteral("Panel"));
}

QStringList AppInterface::knownContainmentTypes(const QString &type) const
{
    QStringList containments;
    const QList<KPluginMetaData> plugins = Plasma::PluginLoader::listContainmentsMetaDataOfType(type);

    containments.reserve(plugins.count());
    for (const KPluginMetaData &plugin : plugins) {
        containments.append(plugin.pluginId());
    }

    return containments;
}

}