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#include <QQmlApplicationEngine>

#include <QtCore/QDebug>
#include <QtCore/QCommandLineParser>
#include <QtCore/QUrlQuery>
#include <QtGui/QGuiApplication>
#include <QtQml/QQmlContext>
#include <QtQuick/QQuickWindow>
#include <QtDBus/QDBusConnection>

#include "qcheapruler.hpp"
#include "dbus_client.h"
#include "file_operation.h"

#ifdef HAVE_LIBHOMESCREEN
#include <qlibhomescreen.h>
#endif
#ifdef HAVE_QLIBWINDOWMANAGER
#include <qlibwindowmanager.h>
#endif

int main(int argc, char *argv[])
{
    if (!QDBusConnection::sessionBus().isConnected()) {
        qWarning("Cannot connect to the D-Bus session bus.\n"
                 "Please check your system settings and try again.\n");
        return 1;
    }

    QString myname = QString("tbtnavi");

    QGuiApplication app(argc, argv);
    app.setApplicationName(myname);
    app.setApplicationVersion(QStringLiteral("0.1.0"));
    app.setOrganizationDomain(QStringLiteral("automotivelinux.org"));
    app.setOrganizationName(QStringLiteral("AutomotiveGradeLinux"));

    QCommandLineParser parser;
    parser.addPositionalArgument("port", app.translate("main", "port for binding"));
    parser.addPositionalArgument("secret", app.translate("main", "secret for binding"));
    parser.addHelpOption();
    parser.addVersionOption();
    parser.process(app);
    QStringList positionalArguments = parser.positionalArguments();

    QQmlApplicationEngine engine;
    int port = 0;
    QString secret;
    if (positionalArguments.length() == 2) {
        port = positionalArguments.takeFirst().toInt();
        secret = positionalArguments.takeFirst();
    }

#ifdef HAVE_QLIBWINDOWMANAGER
    // WindowManager
    QLibWindowmanager* qwm = new QLibWindowmanager();
    if(qwm->init(port,secret) != 0){
        exit(EXIT_FAILURE);
    }
    // Request a surface as described in layers.json windowmanager’s file
    if(qwm->requestSurface(myname) != 0){
        exit(EXIT_FAILURE);
    }
#endif

#ifdef HAVE_LIBHOMESCREEN
    // HomeScreen
    QLibHomeScreen* qhs = new QLibHomeScreen();
    std::string token = secret.toStdString();
    qhs->init(port, token.c_str());
    // Set the event handler for Event_TapShortcut which will activate the surface for windowmanager
    qhs->set_event_handler(QLibHomeScreen::Event_ShowWindow, [qwm, myname](json_object *object){
        qDebug("Surface %s got tapShortcut\n", myname);
        qwm->activateWindow(myname);
    });
#endif
    qmlRegisterType<QCheapRuler>("com.mapbox.cheap_ruler", 1, 0, "CheapRuler");

    File_Operation file;
    engine.rootContext()->setContextProperty("fileOperation", &file);

    engine.load(QUrl(QStringLiteral("qrc:qml/Main.qml")));

    QObject *root = engine.rootObjects().first();
    QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
#ifdef HAVE_LIBHOMESCREEN
    qhs->setQuickWindow(window);
#endif
    //make the DBus connection info
    QString pathBase = "org.agl.";
    QString objBase = "/org/agl/";
    QString	serverName = "naviapi";
    QObject *mapWindow = root->findChild<QObject*>("mapwindow");
    dbus_client dbus(pathBase, objBase, serverName, mapWindow);

#ifdef HAVE_QLIBWINDOWMANAGER
//    QObject::connect(window, SIGNAL(frameSwapped()), qwm, SLOT(slotActivateSurface()));
    // Create an event callback against an event type. Here a lambda is called when SyncDraw event occurs
    qwm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [root, qwm, myname](json_object *object) {
        fprintf(stderr, "Surface got syncDraw!\n");
        qwm->endDraw(myname);
    });
    // Create an event callback against an event type. Here a lambda is called when SyncDraw event occurs
    qwm->set_event_handler(QLibWindowmanager::Event_Active, [root](json_object *object) {
        fprintf(stderr, "Surface got Event_Active!\n");
    });
#else
    window->resize(1024, 768);
    window->setVisible(true);
#endif

    return app.exec();
}