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#include <QtTest/QtTest>
#include <QDebug>
#include <QStringList>

#include <QtMultimedia/qmediaserviceprovider.h>
#include <QtMultimedia/qmediaserviceproviderplugin.h>
#include <QtMultimedia/private/qmediapluginloader_p.h>
#include <QtMultimedia/qmediaobject.h>
#include <QtMultimedia/qmediaservice.h>
#include <QtMultimedia/qmediaplayer.h>

class MockMediaService : public QMediaService
{
    Q_OBJECT
public:
    MockMediaService(const QString& name, QObject *parent = 0) : QMediaService(parent)
    { setObjectName(name); }
    ~MockMediaService() {}

    QMediaControl* control(const char *) const {return 0;}
};

class MockServicePlugin1 : public QMediaServiceProviderPlugin,
                           public QMediaServiceSupportedFormatsInterface,
                           public QMediaServiceSupportedDevicesInterface
{
    Q_OBJECT
    Q_INTERFACES(QMediaServiceSupportedFormatsInterface)
    Q_INTERFACES(QMediaServiceSupportedDevicesInterface)
public:
    QStringList keys() const
    {
        return QStringList() <<
                QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER);
    }

    QMediaService* create(QString const& key)
    {
        if (keys().contains(key))
            return new MockMediaService("MockServicePlugin1");
        else
            return 0;
    }

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

    QtMultimedia::SupportEstimate hasSupport(const QString &mimeType, const QStringList& codecs) const
    {        
        if (codecs.contains(QLatin1String("mpeg4")))
            return QtMultimedia::NotSupported;

        if (mimeType == "audio/ogg") {            
            return QtMultimedia::ProbablySupported;
        }

        return QtMultimedia::MaybeSupported;
    }

    QStringList supportedMimeTypes() const
    {
        return QStringList("audio/ogg");
    }

    QList<QByteArray> devices(const QByteArray &service) const
    {
        Q_UNUSED(service);
        QList<QByteArray> res;
        return res;
    }

    QString deviceDescription(const QByteArray &service, const QByteArray &device)
    {
        if (devices(service).contains(device))
            return QString(device)+" description";
        else
            return QString();
    }
};

class MockServicePlugin2 : public QMediaServiceProviderPlugin,
                            public QMediaServiceSupportedFormatsInterface,
                            public QMediaServiceFeaturesInterface
{
    Q_OBJECT
    Q_INTERFACES(QMediaServiceSupportedFormatsInterface)
    Q_INTERFACES(QMediaServiceFeaturesInterface)
public:
    QStringList keys() const
    {
        return QStringList() << QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER);
    }

    QMediaService* create(QString const& key)
    {
        if (keys().contains(key))
            return new MockMediaService("MockServicePlugin2");
        else
            return 0;
    }

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

    QtMultimedia::SupportEstimate hasSupport(const QString &mimeType, const QStringList& codecs) const
    {
        Q_UNUSED(codecs);

        if (mimeType == "audio/wav")
            return QtMultimedia::PreferedService;        

        return QtMultimedia::NotSupported;
    }

    QStringList supportedMimeTypes() const
    {
        return QStringList("audio/wav");
    }

    QMediaServiceProviderHint::Features supportedFeatures(const QByteArray &service) const
    {
        if (service == QByteArray(Q_MEDIASERVICE_MEDIAPLAYER))
            return QMediaServiceProviderHint::LowLatencyPlayback;
        else
            return 0;
    }
};


class MockServicePlugin3 : public QMediaServiceProviderPlugin,
                            public QMediaServiceSupportedDevicesInterface
{
    Q_OBJECT
    Q_INTERFACES(QMediaServiceSupportedDevicesInterface)
public:
    QStringList keys() const
    {
        return QStringList() <<
               QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER);
    }

    QMediaService* create(QString const& key)
    {
        if (keys().contains(key))
            return new MockMediaService("MockServicePlugin3");
        else
            return 0;
    }

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

    QList<QByteArray> devices(const QByteArray &service) const
    {
        Q_UNUSED(service);
        QList<QByteArray> res;
        return res;
    }

    QString deviceDescription(const QByteArray &service, const QByteArray &device)
    {
        if (devices(service).contains(device))
            return QString(device)+" description";
        else
            return QString();
    }
};



class MockMediaServiceProvider : public QMediaServiceProvider
{
    QMediaService* requestService(const QByteArray &type, const QMediaServiceProviderHint &)
    {
        Q_UNUSED(type);
        return 0;
    }

    void releaseService(QMediaService *service)
    {
        Q_UNUSED(service);
    }
};


class tst_QMediaServiceProvider : public QObject
{
    Q_OBJECT

public slots:
    void initTestCase();

private slots:    
    void testDefaultProviderAvailable();
    void testObtainService();
    void testHasSupport();
    void testSupportedMimeTypes();
    void testProviderHints();

private:
    QObjectList plugins;
};

void tst_QMediaServiceProvider::initTestCase()
{
    plugins << new MockServicePlugin1;
    plugins << new MockServicePlugin2;
    plugins << new MockServicePlugin3;

    QMediaPluginLoader::setStaticPlugins(QLatin1String("/mediaservices"), plugins);
}

void tst_QMediaServiceProvider::testDefaultProviderAvailable()
{
    // Must always be a default provider available    
    QVERIFY(QMediaServiceProvider::defaultServiceProvider() != 0);
}

void tst_QMediaServiceProvider::testObtainService()
{
    QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();

    if (provider == 0)
        QSKIP("No default provider", SkipSingle);

    QMediaService *service = 0;

    // Player
    service = provider->requestService(Q_MEDIASERVICE_MEDIAPLAYER);
    QVERIFY(service != 0);
    provider->releaseService(service);
}

void tst_QMediaServiceProvider::testHasSupport()
{
    MockMediaServiceProvider mockProvider;
    QCOMPARE(mockProvider.hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), "video/ogv", QStringList()),
             QtMultimedia::MaybeSupported);

    QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();

    if (provider == 0)
        QSKIP("No default provider", SkipSingle);

    QCOMPARE(provider->hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), "video/ogv", QStringList()),
             QtMultimedia::MaybeSupported);

    QCOMPARE(provider->hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), "audio/ogg", QStringList()),
             QtMultimedia::ProbablySupported);

    //while the service returns PreferredService, provider should return ProbablySupported
    QCOMPARE(provider->hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), "audio/wav", QStringList()),
             QtMultimedia::ProbablySupported);

    //even while all the plugins with "hasSupport" returned NotSupported,
    //MockServicePlugin3 has no "hasSupport" interface, so MaybeSupported
    QCOMPARE(provider->hasSupport(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER), "video/avi",
                                  QStringList() << "mpeg4"),
             QtMultimedia::MaybeSupported);

    QCOMPARE(provider->hasSupport(QByteArray("non existing service"), "video/ogv", QStringList()),
             QtMultimedia::NotSupported);

    QCOMPARE(QMediaPlayer::hasSupport("video/ogv"), QtMultimedia::MaybeSupported);    
    QCOMPARE(QMediaPlayer::hasSupport("audio/ogg"), QtMultimedia::ProbablySupported);
    QCOMPARE(QMediaPlayer::hasSupport("audio/wav"), QtMultimedia::ProbablySupported);

    //ensure the correct media player plugin is choosen for mime type
    QMediaPlayer simplePlayer(0, QMediaPlayer::LowLatency);
    QCOMPARE(simplePlayer.service()->objectName(), QLatin1String("MockServicePlugin2"));

    QMediaPlayer mediaPlayer;
    QVERIFY(mediaPlayer.service()->objectName() != QLatin1String("MockServicePlugin2"));
}

void tst_QMediaServiceProvider::testSupportedMimeTypes()
{
    QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider();

    if (provider == 0)
        QSKIP("No default provider", SkipSingle);

    QVERIFY(provider->supportedMimeTypes(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER)).contains("audio/ogg"));
    QVERIFY(!provider->supportedMimeTypes(QByteArray(Q_MEDIASERVICE_MEDIAPLAYER)).contains("audio/mp3"));
}

void tst_QMediaServiceProvider::testProviderHints()
{
    {
        QMediaServiceProviderHint hint;
        QVERIFY(hint.isNull());
        QCOMPARE(hint.type(), QMediaServiceProviderHint::Null);
        QVERIFY(hint.device().isEmpty());
        QVERIFY(hint.mimeType().isEmpty());
        QVERIFY(hint.codecs().isEmpty());
        QCOMPARE(hint.features(), 0);
    }

    {
        QByteArray deviceName(QByteArray("testDevice"));
        QMediaServiceProviderHint hint(deviceName);
        QVERIFY(!hint.isNull());
        QCOMPARE(hint.type(), QMediaServiceProviderHint::Device);
        QCOMPARE(hint.device(), deviceName);
        QVERIFY(hint.mimeType().isEmpty());
        QVERIFY(hint.codecs().isEmpty());
        QCOMPARE(hint.features(), 0);
    }

    {
        QMediaServiceProviderHint hint(QMediaServiceProviderHint::LowLatencyPlayback);
        QVERIFY(!hint.isNull());
        QCOMPARE(hint.type(), QMediaServiceProviderHint::SupportedFeatures);
        QVERIFY(hint.device().isEmpty());
        QVERIFY(hint.mimeType().isEmpty());
        QVERIFY(hint.codecs().isEmpty());
        QCOMPARE(hint.features(), QMediaServiceProviderHint::LowLatencyPlayback);
    }

    {
        QString mimeType(QLatin1String("video/ogg"));
        QStringList codecs;
        codecs << "theora" << "vorbis";

        QMediaServiceProviderHint hint(mimeType,codecs);
        QVERIFY(!hint.isNull());
        QCOMPARE(hint.type(), QMediaServiceProviderHint::ContentType);
        QVERIFY(hint.device().isEmpty());
        QCOMPARE(hint.mimeType(), mimeType);
        QCOMPARE(hint.codecs(), codecs);

        QMediaServiceProviderHint hint2(hint);

        QVERIFY(!hint2.isNull());
        QCOMPARE(hint2.type(), QMediaServiceProviderHint::ContentType);
        QVERIFY(hint2.device().isEmpty());
        QCOMPARE(hint2.mimeType(), mimeType);
        QCOMPARE(hint2.codecs(), codecs);

        QMediaServiceProviderHint hint3;
        QVERIFY(hint3.isNull());
        hint3 = hint;
        QVERIFY(!hint3.isNull());
        QCOMPARE(hint3.type(), QMediaServiceProviderHint::ContentType);
        QVERIFY(hint3.device().isEmpty());
        QCOMPARE(hint3.mimeType(), mimeType);
        QCOMPARE(hint3.codecs(), codecs);

        QCOMPARE(hint, hint2);
        QCOMPARE(hint3, hint2);

        QMediaServiceProviderHint hint4(mimeType,codecs);
        QCOMPARE(hint, hint4);

        QMediaServiceProviderHint hint5(mimeType,QStringList());
        QVERIFY(hint != hint5);
    }
}

QTEST_MAIN(tst_QMediaServiceProvider)

#include "tst_qmediaserviceprovider.moc"