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#ifndef QMEDIARECORDER_H
#define QMEDIARECORDER_H

#include <QtCore/qobject.h>
#include <QtMultimedia/qtmultimediaglobal.h>
#include <QtMultimedia/qmultimedia.h>
#include <QtMultimedia/qmediaencodersettings.h>
#include <QtMultimedia/qmediaenumdebug.h>
#include <QtMultimedia/qmediametadata.h>

#include <QtCore/qpair.h>

QT_BEGIN_NAMESPACE

class QUrl;
class QSize;
class QAudioFormat;
class QCamera;
class QCameraInfo;
class QMediaRecorderService;
class QAudioEncoderSettings;
class QVideoEncoderSettings;
class QAudioDeviceInfo;

class QMediaRecorderPrivate;
class Q_MULTIMEDIA_EXPORT QMediaRecorder : public QObject
{
    Q_OBJECT
    Q_ENUMS(State)
    Q_ENUMS(Status)
    Q_ENUMS(Error)
    Q_PROPERTY(int notifyInterval READ notifyInterval WRITE setNotifyInterval NOTIFY notifyIntervalChanged)
    Q_PROPERTY(QMediaRecorder::State state READ state NOTIFY stateChanged)
    Q_PROPERTY(QMediaRecorder::Status status READ status NOTIFY statusChanged)
    Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged)
    Q_PROPERTY(QUrl outputLocation READ outputLocation WRITE setOutputLocation)
    Q_PROPERTY(QUrl actualLocation READ actualLocation NOTIFY actualLocationChanged)
    Q_PROPERTY(bool muted READ isMuted WRITE setMuted NOTIFY mutedChanged)
    Q_PROPERTY(qreal volume READ volume WRITE setVolume NOTIFY volumeChanged)
    Q_PROPERTY(QMediaMetaData metaData READ metaData WRITE setMetaData NOTIFY metaDataChanged)
    Q_PROPERTY(QAudioDeviceInfo audioInput READ audioInput WRITE setAudioInput NOTIFY audioInputChanged)
public:

    enum State
    {
        StoppedState,
        RecordingState,
        PausedState
    };

    enum Status {
        UnavailableStatus,
        UnloadedStatus,
        LoadingStatus,
        LoadedStatus,
        StartingStatus,
        RecordingStatus,
        PausedStatus,
        FinalizingStatus
    };

    enum Error
    {
        NoError,
        ResourceError,
        FormatError,
        OutOfSpaceError
    };

    enum CaptureMode {
        AudioOnly,
        AudioAndVideo
    };

    QMediaRecorder(CaptureMode mode = AudioOnly, QObject *parent = nullptr);
    explicit QMediaRecorder(QCamera *mediaSource, QObject *parent = nullptr);
    ~QMediaRecorder();

    int notifyInterval() const;
    void setNotifyInterval(int milliSeconds);
    void addPropertyWatch(QByteArray const &name);
    void removePropertyWatch(QByteArray const &name);

    bool isAvailable() const;
    QMultimedia::AvailabilityStatus availability() const;

    QUrl outputLocation() const;
    bool setOutputLocation(const QUrl &location);

    QUrl actualLocation() const;

    State state() const;
    Status status() const;

    Error error() const;
    QString errorString() const;

    qint64 duration() const;

    bool isMuted() const;
    qreal volume() const;

    void setEncoderSettings(const QMediaEncoderSettings &);
    QMediaEncoderSettings encoderSettings() const;

    QMediaMetaData metaData() const;
    void setMetaData(const QMediaMetaData &metaData);
    void addMetaData(const QMediaMetaData &metaData);

    QAudioDeviceInfo audioInput() const;
    QCameraInfo videoInput() const;

    QCamera *camera() const;

public Q_SLOTS:
    void record();
    void pause();
    void stop();
    void setMuted(bool muted);
    void setVolume(qreal volume);
    bool setAudioInput(const QAudioDeviceInfo &device);

Q_SIGNALS:
    void notifyIntervalChanged(int milliSeconds);
    void stateChanged(QMediaRecorder::State state);
    void statusChanged(QMediaRecorder::Status status);
    void durationChanged(qint64 duration);
    void mutedChanged(bool muted);
    void volumeChanged(qreal volume);
    void actualLocationChanged(const QUrl &location);
    void audioInputChanged();

    void error(QMediaRecorder::Error error);

    void metaDataChanged();

protected:
    bool setCamera(QCamera *object);

    QMediaRecorderPrivate *d_ptr;
private:
    Q_DISABLE_COPY(QMediaRecorder)
    Q_DECLARE_PRIVATE(QMediaRecorder)
    Q_PRIVATE_SLOT(d_func(), void _q_stateChanged(QMediaRecorder::State))
    Q_PRIVATE_SLOT(d_func(), void _q_error(int, const QString &))
    Q_PRIVATE_SLOT(d_func(), void _q_notify())
    Q_PRIVATE_SLOT(d_func(), void _q_updateActualLocation(const QUrl &))
    Q_PRIVATE_SLOT(d_func(), void _q_updateNotifyInterval(int))
    Q_PRIVATE_SLOT(d_func(), void _q_applySettings())
};

QT_END_NAMESPACE

Q_DECLARE_METATYPE(QMediaRecorder::State)
Q_DECLARE_METATYPE(QMediaRecorder::Status)
Q_DECLARE_METATYPE(QMediaRecorder::Error)

Q_MEDIA_ENUM_DEBUG(QMediaRecorder, State)
Q_MEDIA_ENUM_DEBUG(QMediaRecorder, Status)
Q_MEDIA_ENUM_DEBUG(QMediaRecorder, Error)

#endif  // QMEDIARECORDER_H