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#include "avfcameradebug.h"
#include "avfvideodevicecontrol.h"
#include "avfcameraservice.h"
#include "avfcamerasession.h"

QT_USE_NAMESPACE

AVFVideoDeviceControl::AVFVideoDeviceControl(AVFCameraService *service, QObject *parent)
   : QVideoDeviceSelectorControl(parent)
   , m_service(service)
   , m_selectedDevice(0)
   , m_dirty(true)
{
}

AVFVideoDeviceControl::~AVFVideoDeviceControl()
{
}

int AVFVideoDeviceControl::deviceCount() const
{
    return AVFCameraSession::availableCameraDevices().count();
}

QString AVFVideoDeviceControl::deviceName(int index) const
{
    const QList<QByteArray> &devices = AVFCameraSession::availableCameraDevices();
    if (index < 0 || index >= devices.count())
        return QString();

    return QString::fromUtf8(devices.at(index));
}

QString AVFVideoDeviceControl::deviceDescription(int index) const
{
    const QList<QByteArray> &devices = AVFCameraSession::availableCameraDevices();
    if (index < 0 || index >= devices.count())
        return QString();

    return AVFCameraSession::cameraDeviceInfo(devices.at(index)).description;
}

int AVFVideoDeviceControl::defaultDevice() const
{
    return AVFCameraSession::availableCameraDevices().indexOf(AVFCameraSession::defaultCameraDevice());
}

int AVFVideoDeviceControl::selectedDevice() const
{
    return m_selectedDevice;
}

void AVFVideoDeviceControl::setSelectedDevice(int index)
{
    if (index >= 0 &&
            index < deviceCount() &&
            index != m_selectedDevice) {
        m_dirty = true;
        m_selectedDevice = index;
        Q_EMIT selectedDeviceChanged(index);
        Q_EMIT selectedDeviceChanged(deviceName(index));
    }
}

AVCaptureDevice *AVFVideoDeviceControl::createCaptureDevice()
{
    m_dirty = false;
    AVCaptureDevice *device = 0;

    QString deviceId = deviceName(m_selectedDevice);
    if (!deviceId.isEmpty()) {
        device = [AVCaptureDevice deviceWithUniqueID:
                    [NSString stringWithUTF8String:
                        deviceId.toUtf8().constData()]];
    }

    if (!device)
        device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    return device;
}

#include "moc_avfvideodevicecontrol.cpp"