#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QtGui/QGuiApplication>
#include <QtQuick/QQuickView>
#include <QtQml/QQmlContext>
#include <QtQml/QQmlEngine>
#include <QtMultimedia/QAbstractVideoSurface>
#include "manualcalibration.h"
#include "videostream.h"
#include "videoadapter.h"
#include "signalhandler.h"
#include <QProcess>
#include <gst/gst.h>
#include <QtCore/qobject.h>

int main(int argc, char *argv[])
{
    QProcess process;

    qInfo()<<"VPA Calibration App ID : "<<QCoreApplication::applicationPid();
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;
    QQmlDebuggingEnabler enabler;

    VideoAdapter adapter;
    SignalHandler *signalHandler = SignalHandler::getInstance();

    engine.rootContext()->setContextProperty(QLatin1String("videoAdapter"), &adapter);

    const QUrl url(QUrl::fromLocalFile("main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
		     &app, [url](QObject *obj, const QUrl &objUrl) {
		       if (!obj && url == objUrl)
			 QCoreApplication::exit(-1);
		     }, Qt::QueuedConnection);
    engine.load(url);
    if (engine.rootObjects().isEmpty())
        return -1;

    ManualCalibration manualCalibration;
    VideoStream *videoStream = VideoStream::getInstance();
    QObject *rootObject = engine.rootObjects().first();

    QObject::connect(&manualCalibration,SIGNAL(sigChangeVideoPosition(ReticuleLUT)),videoStream,SLOT(onChangeVideoPosition(ReticuleLUT)));
    QObject::connect(rootObject, SIGNAL(sigIncVideoDiameter()),&manualCalibration, SLOT(onIncVideoDiameter()));
    QObject::connect(rootObject, SIGNAL(sigDecVideoDiameter()),&manualCalibration, SLOT(onDecVideoDiameter()));
    QObject::connect(rootObject, SIGNAL(sigUp()),&manualCalibration, SLOT(onUp()));
    QObject::connect(rootObject, SIGNAL(sigDown()),&manualCalibration, SLOT(onDown()));
    QObject::connect(rootObject, SIGNAL(sigRight()),&manualCalibration, SLOT(onRight()));
    QObject::connect(rootObject, SIGNAL(sigLeft()),&manualCalibration, SLOT(onLeft()));
    QObject::connect(rootObject, SIGNAL(sigSaveData()),&manualCalibration, SLOT(onSaveData()));
    QObject::connect(rootObject, SIGNAL(sigChangeDistance(int)),&manualCalibration, SLOT(onChangeDistance(int)));

    QObject::connect(signalHandler, SIGNAL(sigCalibrationControl(ECommandID)),&manualCalibration, SLOT(onCalibrationControl(ECommandID)));

    QObject::connect(&manualCalibration, SIGNAL(sigChangeDistanceUI(QVariant)),rootObject, SLOT(changeDistanceUI(QVariant)));
    QObject::connect(&manualCalibration, SIGNAL(sigAddDistance(QVariant)),rootObject, SLOT(onAddDistance(QVariant)));
    QObject::connect(videoStream, SIGNAL(sigEnableControl(QVariant)), rootObject, SLOT(onEnableControls(QVariant)));
    QObject::connect(&app,SIGNAL(aboutToQuit()),videoStream,SLOT(cls()));
    manualCalibration.init();

    GstElement *videoSink = gst_element_factory_make("qtvideosink", NULL);
    videoStream->startSteaming(videoSink);
    return app.exec();
}