#include <QApplication>
#include <QPushButton>
#include <QProgressBar>
#include <QVBoxLayout>
#include <QSoundEffect>
#include <QElapsedTimer>
#include <QTimer>

class TestWidget : public QWidget {
	Q_OBJECT
public:
	TestWidget(QWidget *parent = nullptr) :
		QWidget(parent)
	{
		auto *layout{new QVBoxLayout(this)};
		auto *progress{new QProgressBar(this)};
		auto *btnPlay{new QPushButton(tr("Play sound"), this)};
		auto *timer{new QTimer(this)};
		auto *effect{new QSoundEffect(this)};

		timer->start(100);

		btnPlay->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

		layout->addWidget(progress);
		layout->addWidget(btnPlay);

		resize(300, 200);

		effect->setSource(QUrl::fromLocalFile(":/bin/audio/test.wav"));
		effect->setVolume(0.8f);

		connect(btnPlay, &QPushButton::clicked, this, [effect](){
			QElapsedTimer timer;

			timer.start();
			effect->play();

			qDebug() << "Delay in ms:" << timer.elapsed();
		});

		connect(timer, &QTimer::timeout, this, [progress](){
			progress->setValue(progress->value() + 1);

			if (progress->value() != progress->maximum())
				return;

			bool isInverted{progress->invertedAppearance()};

			progress->setInvertedAppearance(!isInverted);
			progress->setValue(progress->minimum());
		});
	}
};

int main(int argc, char *argv[]) {
	QApplication app(argc, argv);
	TestWidget w;

	w.show();

	return app.exec();
}

#include "main.moc"