/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef IRPLAYCONTROLLER_H

#define IRPLAYCONTROLLER_H

#include <QObject>

#include <hbglobal.h>

#include "irqenums.h"

class IRApplication;

class IRQMediaPlayer;

class IRQPreset;

class IRQMetaData;

class IRQSongHistoryEngine;

class IRQStatisticsReporter;

/**

 * This class is a wrapper for IRQMediaPlayer.

 */

class IRPlayController : public QObject

{

    Q_OBJECT

public:

    explicit IRPlayController(IRApplication* aApplication);

    ~IRPlayController();

    // Play a station

    void connectToChannel(IRQPreset *aPreset, IRQConnectedFrom aConnectedFrom);

    // Play control methods

    void resume();

    void stop(IRQTerminatedType aStopReason);

    int getVolume() const;

    void setVolume(int aVolume);

    // Check the playing status

    bool isPlaying() const;

    bool isStopped() const;

    // Get the preset of now playing

    IRQPreset * getNowPlayingPreset() const;

    QString getNowPlayingUrl() const;

    int getNowPlayingBitRate() const;

    // Get the meta data

    IRQMetaData * getMetaData() const;

    IRQTerminatedType getStopReason() const;

#ifdef _DEBUG

    int bitrateTrying() const;

#endif 

signals:

    // emitted when meta data is available

    void metaDataAvailable(IRQMetaData*);

    // emitted when playing started

    void playingStarted();

    // emitted when playing stopped

    void playingStopped();

    // emitted when logo needs to update

    void initializeLogo();

private slots:

    // slots connected with IRQMediaPlayer

    void connectionEstablished(int aBitrate);

    void errorOccured(IRQError aError);

    void updateProgress(int aProgress);

    void fetchVolume(int &aVolume);

    void handleMetaDataReceived(IRQMetaData& aIRmetaData);

    // slots connected with own functions

    void cancelBuffering();

    void handleError();

private:

    void createNote(const QString &aNote = hbTrId("txt_irad_info_failed_to_connect"));

    void connectSignalSlot();

    // Play next URL if the previous failed to connect.

    bool playNextUrl();

    void doPlay(const QString& aUrl);

	void startSession();

	void endSession(IRQTerminatedType aStopReason);

private:

    IRApplication *iApplication;

    IRQMediaPlayer *iMediaPlayer;

    IRQStatisticsReporter *iStatisticsReporter;

    IRQConnectedFrom iConnectedFrom;

    bool iGetServerResult;

    IRQPreset *iNowPlayingPreset;

    // reference of IRQMediaPlayer meta data

    IRQMetaData *iMetaData;

    IRQSongHistoryEngine *iSongHistoryEngine;

    enum EPlayState

    {

        //initial state

        EIdle = 0,

        //a station has been stopped

        EStopped,

        //connecting station and buffering

        EBuffering,

        //playing

        EPlaying

    };

    EPlayState iPlayState;

    // If resuming the last played url fails, connect to all the preset.

    bool iResuming;

    // variants for play next URL

    // available bitrates in the preset

    QList<int> iAvailableBitrate;

    // the bitrate is now tried.

    int iTryingBitrate;

    // the URLs of a specific bitrate

    QList<QString> *iUrlArray;

#ifdef Q_CC_NOKIAX86

    QString iLastPlayedChannelName;

#endif

    // the bitrate from real station feedback.

    int iRealBitrate;

    QString iLastPlayedUrl;

    // To handle error async

    IRQError iLastError;

    IRQTerminatedType iStopReason;

};

#endif  //IRPLAYCONTROLLER_H