/*
 *   Copyright 2019 by Marco Martin <mart@kde.org>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as
 *   published by the Free Software Foundation; either version 2, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Library General Public License for more details
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#include "configoverlay.h"

#include <cmath>

ConfigOverlay::ConfigOverlay(QQuickItem *parent)
    : QQuickItem(parent)
{
    m_hideTimer = new QTimer(this);
    m_hideTimer->setSingleShot(true);
    m_hideTimer->setInterval(600);
    connect(m_hideTimer, &QTimer::timeout, this, [this] () {
        setVisible(false);
    });
}

ConfigOverlay::~ConfigOverlay()
{
}

bool ConfigOverlay::open() const
{
    return m_open;
}

void ConfigOverlay::setOpen(bool open)
{
    if (open == m_open) {
        return;
    }

    m_open = open;

    if (open) {
        m_hideTimer->stop();
        setVisible(true);
    } else {
        m_hideTimer->start();
    }

    emit openChanged();
}

bool ConfigOverlay::touchInteraction() const
{
    return m_touchInteraction;
}
void ConfigOverlay::setTouchInteraction(bool touch)
{
    if (touch == m_touchInteraction) {
        return;
    }

    m_touchInteraction = touch;
    emit touchInteractionChanged();
}

ItemContainer *ConfigOverlay::itemContainer() const
{
    return m_itemContainer;
}

void ConfigOverlay::setItemContainer(ItemContainer *container)
{
    if (container == m_itemContainer) {
        return;
    }

    if (m_itemContainer) {
        disconnect(m_itemContainer, nullptr, this, nullptr);
    }

    m_itemContainer = container;

    if (!m_itemContainer || !m_itemContainer->layout()) {
        return;
    }

    m_leftAvailableSpace = qMax(0.0, m_itemContainer->x());
    m_rightAvailableSpace = qMax(0.0, m_itemContainer->layout()->width() - (m_itemContainer->x() + m_itemContainer->width()));
    m_topAvailableSpace = qMax(0.0, m_itemContainer->y());
    m_bottomAvailableSpace = qMax(0.0, m_itemContainer->layout()->height() - (m_itemContainer->y() + m_itemContainer->height()));
    emit leftAvailableSpaceChanged();
    emit rightAvailableSpaceChanged();
    emit topAvailableSpaceChanged();
    emit bottomAvailableSpaceChanged();

    connect(m_itemContainer.data(), &ItemContainer::xChanged, this, [this] () {
        m_leftAvailableSpace = qMax(0.0, m_itemContainer->x());
        m_rightAvailableSpace = qMax(0.0, m_itemContainer->layout()->width() - (m_itemContainer->x() + m_itemContainer->width()));
        emit leftAvailableSpaceChanged();
        emit rightAvailableSpaceChanged();
    });

    connect(m_itemContainer.data(), &ItemContainer::yChanged, this, [this] () {
        m_topAvailableSpace = qMax(0.0, m_itemContainer->y());
        m_bottomAvailableSpace = qMax(0.0, m_itemContainer->layout()->height() - (m_itemContainer->y() + m_itemContainer->height()));
        emit topAvailableSpaceChanged();
        emit bottomAvailableSpaceChanged();
    });

    connect(m_itemContainer.data(), &ItemContainer::widthChanged, this, [this] () {
        m_rightAvailableSpace = qMax(0.0, m_itemContainer->layout()->width() - (m_itemContainer->x() + m_itemContainer->width()));
        emit rightAvailableSpaceChanged();
    });

    connect(m_itemContainer.data(), &ItemContainer::heightChanged, this, [this] () {
        m_bottomAvailableSpace = qMax(0.0, m_itemContainer->layout()->height() - (m_itemContainer->y() + m_itemContainer->height()));
        emit bottomAvailableSpaceChanged();
    });
    emit itemContainerChanged();
}

#include "moc_configoverlay.cpp"
