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#include <QtCore/qstring.h>
#include <QtCore/qdebug.h>

#include "avfcameraserviceplugin.h"
#include "avfcameraservice.h"

#include <qmediaserviceproviderplugin.h>

#import <AVFoundation/AVFoundation.h>


QT_BEGIN_NAMESPACE


AVFServicePlugin::AVFServicePlugin()
{
}

QMediaService* AVFServicePlugin::create(QString const& key)
{
    if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
        return new AVFCameraService;
    else
        qWarning() << "unsupported key:" << key;

    return 0;
}

void AVFServicePlugin::release(QMediaService *service)
{
    delete service;
}

QList<QByteArray> AVFServicePlugin::devices(const QByteArray &service) const
{
    if (service == Q_MEDIASERVICE_CAMERA) {
        if (m_cameraDevices.isEmpty())
            updateDevices();

        return m_cameraDevices;
    }

    return QList<QByteArray>();
}

QString AVFServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
{
    if (service == Q_MEDIASERVICE_CAMERA) {
        if (m_cameraDevices.isEmpty())
            updateDevices();

        return m_cameraDescriptions.value(device);
    }

    return QString();
}

void AVFServicePlugin::updateDevices() const
{
    m_cameraDevices.clear();
    m_cameraDescriptions.clear();

    NSArray *videoDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
    for (AVCaptureDevice *device in videoDevices) {
        QByteArray deviceId([[device uniqueID] UTF8String]);
        m_cameraDevices << deviceId;
        m_cameraDescriptions.insert(deviceId, QString::fromUtf8([[device localizedName] UTF8String]));
    }
}

QT_END_NAMESPACE