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#import <QTKit/QTDataReference.h>

#import <QTKit/QTMovie.h>

#include "qt7backend.h"

#include "qt7playersession.h"

#include "qt7playercontrol.h"

#include "qt7videooutputcontrol.h"

#include <qmediaplaylistnavigator.h>

#include <CoreFoundation/CoreFoundation.h>

#include <QtCore/qurl.h>

#include <QtCore/qdebug.h>

QTM_USE_NAMESPACE

@interface QTMovieObserver : NSObject

{

@private

    QT7PlayerSession *m_session;

    QTMovie *m_movie;

}

- (QTMovieObserver *) initWithPlayerSession:(QT7PlayerSession*)session;

- (void) setMovie:(QTMovie *)movie;

- (void) processEOS:(NSNotification *)notification;

@end

@implementation QTMovieObserver

- (QTMovieObserver *) initWithPlayerSession:(QT7PlayerSession*)session

{

    if (!(self = [super init]))

        return nil;

    self->m_session = session;

    return self;

}

- (void) setMovie:(QTMovie *)movie

{

    if (m_movie == movie)

        return;

    if (m_movie) {

        [[NSNotificationCenter defaultCenter] removeObserver:self];

        [m_movie release];

    }

    m_movie = movie;

    if (movie) {

        [[NSNotificationCenter defaultCenter] addObserver: self selector:

            @selector(processEOS:) name: QTMovieDidEndNotification object: m_movie];

        [movie retain];

    }

}

- (void) processEOS:(NSNotification *)notification

{

    Q_UNUSED(notification);

    m_session->processEOS();

}

@end

static CFStringRef qString2CFStringRef(const QString &string)

{

    return CFStringCreateWithCharacters(0, reinterpret_cast<const UniChar *>(string.unicode()),

                                        string.length());

}

QT7PlayerSession::QT7PlayerSession(QObject *parent)

   : QObject(parent)

   , m_QTMovie(0)

   , m_state(QMediaPlayer::StoppedState)

   , m_mediaStatus(QMediaPlayer::NoMedia)

   , m_mediaStream(0)

   , m_videoOutput(0)

   , m_muted(false)

   , m_volume(100)

   , m_rate(1.0)

{

    m_movieObserver = [[QTMovieObserver alloc] initWithPlayerSession:this];

}

QT7PlayerSession::~QT7PlayerSession()

{

    [(QTMovieObserver*)m_movieObserver setMovie:nil];

    [(QTMovieObserver*)m_movieObserver release];

}

void *QT7PlayerSession::movie() const

{

    return m_QTMovie;

}

void QT7PlayerSession::setVideoOutput(QT7VideoOutput *output)

{

    if (m_videoOutput == output)

        return;

    qDebug() << "set output" << output;

    if (m_videoOutput) {

        m_videoOutput->setEnabled(false);

        m_videoOutput->setMovie(0);

    }

    m_videoOutput = output;

    if (m_videoOutput) {

        m_videoOutput->setEnabled(m_QTMovie != 0);

        m_videoOutput->setMovie(m_QTMovie);

    }

}

qint64 QT7PlayerSession::position() const

{

    if (!m_QTMovie || m_state == QMediaPlayer::PausedState)

        return m_currentTime;

    AutoReleasePool pool;

    QTTime qtTime = [(QTMovie*)m_QTMovie currentTime];

    quint64 t = static_cast<quint64>(float(qtTime.timeValue) / float(qtTime.timeScale) * 1000.0f);

    m_currentTime = t;

    return m_currentTime;

}

qint64 QT7PlayerSession::duration() const

{

    if (!m_QTMovie)

        return 0;

    AutoReleasePool pool;

    QTTime qtTime = [(QTMovie*)m_QTMovie duration];

    return static_cast<quint64>(float(qtTime.timeValue) / float(qtTime.timeScale) * 1000.0f);

}

QMediaPlayer::State QT7PlayerSession::state() const

{

    return m_state;

}

QMediaPlayer::MediaStatus QT7PlayerSession::mediaStatus() const

{

    return m_mediaStatus;

}

int QT7PlayerSession::bufferStatus() const

{

    return 100;

}

int QT7PlayerSession::volume() const

{

    return m_volume;

}

bool QT7PlayerSession::isMuted() const

{

    return m_muted;

}

bool QT7PlayerSession::isSeekable() const

{

    return true;

}

qreal QT7PlayerSession::playbackRate() const

{

    return m_rate;

}

void QT7PlayerSession::setPlaybackRate(qreal rate)

{

    if (qFuzzyCompare(m_rate, rate))

        return;

    m_rate = rate;

    if (m_QTMovie && m_state == QMediaPlayer::PlayingState) {        

        float preferredRate = [[(QTMovie*)m_QTMovie attributeForKey:@"QTMoviePreferredRateAttribute"] floatValue];

        [(QTMovie*)m_QTMovie setRate:preferredRate*m_rate];

    }

}

void QT7PlayerSession::setPosition(qint64 pos)

{

    if ( !isSeekable() || pos == position())

        return;

    AutoReleasePool pool;

    pos = qMin(pos, duration());

    QTTime newQTTime = [(QTMovie*)m_QTMovie currentTime];

    newQTTime.timeValue = (pos / 1000.0f) * newQTTime.timeScale;

    [(QTMovie*)m_QTMovie setCurrentTime:newQTTime];

}

void QT7PlayerSession::play()

{

    float preferredRate = [[(QTMovie*)m_QTMovie attributeForKey:@"QTMoviePreferredRateAttribute"] floatValue];

    [(QTMovie*)m_QTMovie setRate:preferredRate*m_rate];

}

void QT7PlayerSession::pause()

{

    m_state = QMediaPlayer::PausedState;

    [(QTMovie*)m_QTMovie setRate:0];

    emit stateChanged(m_state);

}

void QT7PlayerSession::stop()

{

    m_state = QMediaPlayer::StoppedState;

    [(QTMovie*)m_QTMovie setRate:0];

    setPosition(0);

    if (m_state == QMediaPlayer::StoppedState)

        emit stateChanged(m_state);

}

void QT7PlayerSession::setVolume(int volume)

{

    if (m_QTMovie) {

        m_volume = volume;

        [(QTMovie*)m_QTMovie setVolume:(volume/100.0f)];

    }

}

void QT7PlayerSession::setMuted(bool muted)

{

    if (m_muted != muted) {

        m_muted = muted;

        if (m_QTMovie)

            [(QTMovie*)m_QTMovie setMuted:m_muted];

        emit mutedChanged(muted);

    }

}

QMediaContent QT7PlayerSession::media() const

{

    return m_resources;

}

const QIODevice *QT7PlayerSession::mediaStream() const

{

    return m_mediaStream;

}

void QT7PlayerSession::setMedia(const QMediaContent &content, QIODevice *stream)

{

    AutoReleasePool pool;

    if (m_QTMovie) {

        [(QTMovieObserver*)m_movieObserver setMovie:nil];

        if (m_videoOutput) {

            m_videoOutput->setEnabled(false);

            m_videoOutput->setMovie(0);

        }

        [(QTMovie*)m_QTMovie release];

        m_QTMovie = 0;

    }

    m_resources = content;

    m_mediaStream = stream;

    QUrl url;

    if (!content.isNull())

        url = content.canonicalUrl();

    else

        return;

    NSError *err = 0;

    QTDataReference *dataRef = 0;

    if ( url.scheme() == "file" ) {

        NSString *nsFileName = (NSString *)qString2CFStringRef( url.toLocalFile() );

        dataRef = [QTDataReference dataReferenceWithReferenceToFile:nsFileName];

    } else {

        NSString *urlString = (NSString *)qString2CFStringRef( url.toString() );

        NSURL *url = [NSURL URLWithString: urlString];

        dataRef = [QTDataReference dataReferenceWithReferenceToURL:url];

    }

    NSDictionary *attr = [NSDictionary dictionaryWithObjectsAndKeys:

                dataRef, QTMovieDataReferenceAttribute,

                [NSNumber numberWithBool:YES], QTMovieOpenAsyncOKAttribute,

                [NSNumber numberWithBool:YES], QTMovieIsActiveAttribute,

                [NSNumber numberWithBool:YES], QTMovieResolveDataRefsAttribute,

                [NSNumber numberWithBool:YES], QTMovieDontInteractWithUserAttribute,

                nil];

    m_QTMovie = [[QTMovie movieWithAttributes:attr error:&err] retain];

    if (err) {

        [(QTMovie*)m_QTMovie release];

        m_QTMovie = 0;

        QString description = QString::fromUtf8([[err localizedDescription] UTF8String]);

        emit error(QMediaPlayer::FormatError, description );

    } else {

        [(QTMovieObserver*)m_movieObserver setMovie:(QTMovie*)m_QTMovie];

            m_videoOutput->setEnabled(true);

        }

        [(QTMovie*)m_QTMovie setMuted:m_muted];

        setVolume(m_volume);

    }

}

bool QT7PlayerSession::isAudioAvailable() const

{

    if (!m_QTMovie)

        return false;

    AutoReleasePool pool;

    return [[(QTMovie*)m_QTMovie attributeForKey:@"QTMovieHasAudioAttribute"] boolValue] == YES;

}

bool QT7PlayerSession::isVideoAvailable() const

{

    if (!m_QTMovie)

        return false;

    AutoReleasePool pool;

    return [[(QTMovie*)m_QTMovie attributeForKey:@"QTMovieHasVideoAttribute"] boolValue] == YES;

}

void QT7PlayerSession::processEOS()

{    

    m_mediaStatus = QMediaPlayer::EndOfMedia;

    emit stateChanged(m_state = QMediaPlayer::StoppedState);

    emit mediaStatusChanged(m_mediaStatus);

}

#include "moc_qt7playersession.cpp"