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#ifndef AUDIORECORDER_H
#define AUDIORECORDER_H

#include <QtCore/qurl.h>
#include <QtWidgets/qmainwindow.h>

#include <qmediarecorder.h>


QT_BEGIN_NAMESPACE

namespace Ui {
    class AudioRecorder;
}

class QAudioRecorder;
class QAudioProbe;
class QAudioBuffer;
QT_END_NAMESPACE

QT_USE_NAMESPACE

class AudioRecorder : public QMainWindow
{
    Q_OBJECT
public:
    AudioRecorder(QWidget *parent = 0);
    ~AudioRecorder();

public slots:
    void processBuffer(const QAudioBuffer&);

private slots:
    void setOutputLocation();
    void togglePause();
    void toggleRecord();

    void updateState(QMediaRecorder::State);
    void updateProgress(qint64 pos);
    void displayErrorMessage();
    QUrl generateAudioFilePath();

private:
    static qreal GetPeakValue(const QAudioFormat& format);
    static qreal GetBufferLevel(const QAudioBuffer& buffer);

    template <class T>
    static qreal GetBufferLevel(const T* buffer, int samples);

    Ui::AudioRecorder *ui;

    QAudioRecorder* audioRecorder;
    QAudioProbe* probe;
    bool outputLocationSet;

};

#endif