// SPDX-FileCopyrightText: Copyright (C) 2017 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1

#include "guiactionbind.h"

#include "misc/fileutils.h"
#include "misc/imageutils.h"

using namespace swift::misc;
using namespace swift::core;

namespace swift::gui
{
    CGuiActionBindHandler::CGuiActionBindHandler(QAction *action) : QObject(action), m_action(action)
    {
        this->connectDestroy(action);
        connect(sApp, &CApplication::aboutToShutdown, this, &CGuiActionBindHandler::unbind);
    }

    CGuiActionBindHandler::CGuiActionBindHandler(QAbstractButton *button) : QObject(button), m_button(button)
    {
        this->connectDestroy(button);
        connect(sApp, &CApplication::aboutToShutdown, this, &CGuiActionBindHandler::unbind);
    }

    CGuiActionBindHandler::~CGuiActionBindHandler() {}

    CActionBindings CGuiActionBindHandler::bindMenu(QMenu *menu, const QString &path)
    {
        Q_ASSERT(menu);
        CActionBindings boundActions;
        if (!menu || menu->isEmpty()) { return boundActions; }
        for (QAction *action : menu->actions())
        {
            if (action->text().isEmpty()) { continue; }
            if (action->isSeparator()) { continue; }

            const QString pathNew =
                CGuiActionBindHandler::appendPath(path, action->text()).remove('&'); // remove E&xit key codes
            if (action->menu()) { CGuiActionBindHandler::bindMenu(action->menu(), pathNew); }

            const bool hasIcon = !action->icon().isNull();
            CGuiActionBindHandler *bindHandler = new CGuiActionBindHandler(action);
            // MS 2019-10-08 [AFV integration] CActionBind constructor needs an icon index, not a QPixmap
            // CActionBinding actionBinding(CActionBinding::create(pathNew, hasIcon ?
            // action->icon().pixmap(CIcons::empty16().size()) : CIcons::empty16(), bindHandler,
            // &CGuiActionBindHandler::boundFunction, [bindHandler]() {
            // CGuiActionBindHandler::actionBindWasDestroyed(bindHandler); }));
            CActionBinding actionBinding(CActionBinding::create(
                pathNew, CIcons::StandardIconEmpty16, bindHandler, &CGuiActionBindHandler::boundFunction,
                [bindHandler]() { CGuiActionBindHandler::actionBindWasDestroyed(bindHandler); }));
            Q_UNUSED(hasIcon)
            bindHandler->m_index = actionBinding->getIndex();
            boundActions.append(actionBinding); // takes ownership
        }
        return boundActions;
    }

    CActionBinding CGuiActionBindHandler::bindButton(QAbstractButton *button, const QString &path, bool absoluteName)
    {
        Q_ASSERT(button);
        const QString pathNew =
            absoluteName ?
                path :
                CGuiActionBindHandler::appendPath(path, button->text()).remove('&'); // remove E&xit key codes
        CGuiActionBindHandler *bindHandler = new CGuiActionBindHandler(button);
        const bool hasIcon = !button->icon().isNull();
        // MS 2019-10-08 [AFV integration] CActionBind constructor needs an icon index, not a QPixmap
        // CActionBinding actionBinding(CActionBinding::create(pathNew, hasIcon ?
        // button->icon().pixmap(CIcons::empty16().size()) : CIcons::empty16(), bindHandler,
        // &CGuiActionBindHandler::boundFunction, [bindHandler]() {
        // CGuiActionBindHandler::actionBindWasDestroyed(bindHandler); }));
        CActionBinding actionBinding(CActionBinding::create(
            pathNew, CIcons::StandardIconEmpty16, bindHandler, &CGuiActionBindHandler::boundFunction,
            [bindHandler]() { CGuiActionBindHandler::actionBindWasDestroyed(bindHandler); }));
        Q_UNUSED(hasIcon)
        bindHandler->m_index = actionBinding->getIndex();
        return actionBinding;
    }

    void CGuiActionBindHandler::actionBindWasDestroyed(CGuiActionBindHandler *bindHandler)
    {
        if (!bindHandler) { return; }
        bindHandler->reset();
        // do not delete, as it might be still referenced somewhere
    }

    void CGuiActionBindHandler::connectDestroy(QObject *object)
    {
        // if the action is destroyed from somewhere else I unbind myself
        QObject::connect(object, &QObject::destroyed, [=] { this->unbind(); });
    }

    void CGuiActionBindHandler::unbind()
    {
        if (this->hasTarget())
        {
            Q_ASSERT_X(sApp && sApp->getInputManager(), Q_FUNC_INFO, "Missing input manager");
            sApp->getInputManager()->unbind(m_index);
        }
        this->reset();
    }

    void CGuiActionBindHandler::reset()
    {
        m_index = -1;
        m_button = nullptr;
        m_action = nullptr;
    }

    bool CGuiActionBindHandler::hasTarget() const { return (m_button || m_action) && m_index >= 0; }

    void CGuiActionBindHandler::boundFunction(bool enabled)
    {
        if (!enabled || !this->hasTarget()) { return; }
        if (m_action) { m_action->trigger(); }
        else if (m_button) { m_button->click(); }
    }

    QString CGuiActionBindHandler::appendPath(const QString &path, const QString &name)
    {
        return CFileUtils::appendFilePaths(path, name);
    }

    const QString &CGuiActionBindHandler::pathSwiftPilotClient()
    {
        static const QString s("Pilot client UI/");
        return s;
    }

    const QString &CGuiActionBindHandler::pathSwiftCore()
    {
        static const QString s("Core UI/");
        return s;
    }
} // namespace swift::gui