#include <QCoreApplication>
#include <QMediaCaptureSession>
#include <QCamera>
#include <QImageCapture>
#include <QDebug>
#include <QMediaDevices>
#include <QTimer>
#include <QMediaMetaData>
#include <QTime>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QMediaCaptureSession captureSession;
    auto camera = new QCamera;

    captureSession.setCamera(camera);

    auto imageCapture = new QImageCapture;

    imageCapture->setResolution(1000,1000);

    captureSession.setImageCapture(imageCapture);

    qDebug() << "QImageCapture" << imageCapture->isReadyForCapture() << imageCapture->isAvailable();

    QObject::connect(imageCapture,&QImageCapture::imageCaptured,[](int id,const QImage &image){
        qDebug() << "QImageCapture::imageCaptured" << id << image;
        image.save(QString("CapturedImage_%1.png").arg(QTime::currentTime().toString("HH-mm-ss-zzz")));
    });

    QObject::connect(imageCapture,&QImageCapture::imageAvailable,[](int id, const QVideoFrame &frame){
        qDebug() << "QImageCapture::imageAvailable" << id << frame;
    });

    QObject::connect(imageCapture,&QImageCapture::readyForCaptureChanged,[imageCapture](bool ready){
        qDebug() << "QImageCapture::readyForCaptureChanged" << ready;
        if(ready) {
            qDebug() << "captureToFile called";
            imageCapture->captureToFile();
        }

        qDebug() << "MetaData" << imageCapture->metaData().keys();
    });

    QObject::connect(imageCapture,&QImageCapture::errorOccurred,[](int id, QImageCapture::Error error, const QString &errorString) {
        qDebug() << "QImageCapture::errorOccurred" << id << error << errorString;

    });

    QObject::connect(imageCapture,&QImageCapture::imageSaved,[](int id, const QString &fileName) {
        qDebug() << "QImageCapture::imageSaved" << id << fileName;
    });


    QObject::connect(camera, &QCamera::activeChanged, [imageCapture](bool active){
        qDebug() << "QCamera::activeChanged" << active;
    });
    QObject::connect(camera, &QCamera::errorOccurred,  [](){ qDebug() << "Camera::errorOccurred";});

    camera->start();

    qDebug() << "Start Eventloop";

    QTimer::singleShot(10000, &a, &QCoreApplication::quit);

    QTimer::singleShot(5000, [imageCapture](){
        qDebug() << "-------------------------------------------- captureToFile in timers";
        imageCapture->capture();
        qDebug() << "-------------------------------------------- captureToFile in timers" << imageCapture->resolution();
    });


    int rtn = a.exec();
}