/*
 *   Copyright 2008 Aike J Sommer <dev@aikesommer.name>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU 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 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 "kephalservice.h"

#include "config-kephal.h"

#include <QDBusConnection>
#include <QApplication>
#include <QTimer>

#include <KApplication>
#include <KConfig>
#include <KConfigGroup>
#include <KDebug>


#ifdef HAS_RANDR_1_2
#include "xrandr12/randrdisplay.h"
#include "xrandr12/randrscreen.h"
#include "xrandroutputs.h"
#endif

#include "desktopwidgetoutputs.h"
#include "configurationscreens.h"

#include "dbus/dbusapi_screens.h"
#include "dbus/dbusapi_outputs.h"
#include "dbus/dbusapi_configurations.h"
#include "xmlconfigurations.h"

using namespace Kephal;

X11EventFilter::X11EventFilter(Kephal::XRandROutputs * outputs)
: m_outputs(outputs)
{}

X11EventFilter::~X11EventFilter()
{}

#ifdef Q_WS_X11
bool X11EventFilter::x11Event(XEvent * e) {
#ifdef HAS_RANDR_1_2
    if (m_outputs && m_outputs->display()->canHandle(e)) {
        m_outputs->display()->handleEvent(e);
    }
#endif
    return false;
}
#endif

KephalService::KephalService(QObject * parent)
    : QObject(parent),
    m_noXRandR(false)
{
    kDebug() << "kephald starting up";
    init();
}

KephalService::~KephalService()
{
    delete m_eventFilter;
}

void KephalService::init()
{ KConfig config("kephalrc");
    KConfigGroup general(&config, "General");
    m_noXRandR = general.readEntry("NoXRandR", false);

    m_outputs = 0;
#ifdef HAS_RANDR_1_2
    RandRDisplay * display;
    if (! m_noXRandR) {
        display = new RandRDisplay();
    }

    if ((! m_noXRandR) && display->isValid()) {
        m_outputs = new XRandROutputs(this, display);
        if (m_outputs->outputs().size() <= 1) {
            delete m_outputs;
            m_outputs = 0;
        }
    }
#endif
    if (! m_outputs) {
        //new DesktopWidgetOutputs(this);

    }

    foreach (Output * output, Outputs::self()->outputs()) {
        kDebug() << "output:" << output->id() << output->geom() << output->rotation() << output->reflectX() << output->reflectY();
    }

    new XMLConfigurations(this);
    //new ConfigurationScreens(this);

//X     foreach (Kephal::Screen * screen, Screens::self()->screens()) {
//X         kDebug() << "screen:" << screen->id() << screen->geom();
//X     }
//X 
    activateConfiguration();
    connect(Outputs::self(), SIGNAL(outputDisconnected(Kephal::Output*)), this, SLOT(outputDisconnected(Kephal::Output*)));
    connect(Outputs::self(), SIGNAL(outputConnected(Kephal::Output*)), this, SLOT(outputConnected(Kephal::Output*)));

//X     kDebug() << "will check for possible positions...";
//X     foreach (Output * output, Outputs::self()->outputs()) {
//X         kDebug() << "possible positions for:" << output->id() << Configurations::self()->possiblePositions(output);
//X     }

    QDBusConnection dbus = QDBusConnection::sessionBus();
    bool result = dbus.registerService("org.kde.Kephal");
    kDebug() << "registered the service:" << result;

    //new DBusAPIScreens(this);
    //new DBusAPIOutputs(this);
    //new DBusAPIConfigurations(this);

    if (m_outputs) {
        m_eventFilter = new X11EventFilter(m_outputs);
        kapp->installX11EventFilter(m_eventFilter);

        m_pollTimer = new QTimer(this);
        connect(m_pollTimer, SIGNAL(timeout()), this, SLOT(poll()));
//X         if (Configurations::self()->polling()) {
//X             m_pollTimer->start(10000);
//X         }
    } else {
        m_pollTimer = 0;
        m_eventFilter = 0;
    }
}

void KephalService::pollingActivated()
{
    if (m_pollTimer && m_outputs) {
        m_pollTimer->start(10000);
    }
}

void KephalService::pollingDeactivated()
{
    if (m_pollTimer && m_outputs) {
        m_pollTimer->stop();
    }
}

void KephalService::poll()
{
#ifdef HAS_RANDR_1_2
    if (m_outputs) {
        m_outputs->display()->screen(0)->pollState();
    }
#endif
}

void KephalService::activateConfiguration()
{
//X     BackendConfigurations * configs = BackendConfigurations::self();
//X     Configuration * config = configs->findConfiguration();
//X     configs->applyOutputSettings();
//X     if (config) {
//X         config->activate();
//X     } else {
//X         kDebug() << "couldnt find matching configuration!!";
//X     }
}

void KephalService::outputDisconnected(Output * output)
{
    Q_UNUSED(output)
//     activateConfiguration();
}

void KephalService::outputConnected(Output * output)
{
    Q_UNUSED(output)
//     activateConfiguration();
}

#include "kephalservice.moc"

// vim: sw=4 sts=4 et tw=100