/**

 * Copyright (c) 2010 Sasken Communication Technologies Ltd. 

 * All rights reserved.

 * This component and the accompanying materials are made available 

 * under the terms of the "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:

 * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution

 *

 * Contributors:

 * Manasij Roy, Nalina Hariharan

 * 

 * @section DESCRIPTION

 *

 * Interface specification for getting/posting updates to a social site

 *

 */

#ifndef SMFPOSTPROVIDERPLUGIN_H_

#define SMFPOSTPROVIDERPLUGIN_H_

#include <smfpluginbase.h>

#include <smfcontact.h>

#include <smfpost.h>

#include <smfplace.h>

// Forward declaration

class SmfPluginManagerUtil;

/**

 * SmfPresenceInfo.

 * Indicates the presence information of user like Online, Offline, Busy, 

 * Do no disturb, Appear Offline etc.

 */

enum SmfPresenceInfo

	{

	  ENotSupported,

	  EOnline,

	  EOffline,

	  EBusy,

	  EDoNotDisturb,

	  EAppearOffline,

	  EOther

	};

/**

 * @ingroup smf_plugin_group

 * Interface to get/update the posts to a service provider. This class

 * provides basic functionality to allow applications to obtain list of

 * posts, updates posts or change the presence information to a social 

 * networking service.

 *

 * All of the functionality described here should be implemented by a service

 * specific plug-in.

 */

class SmfPostProviderPlugin : public SmfPluginBase

	{

	Q_OBJECT

public:

	/**

	 * Constructor with default argument

	 * @param aUtil The SmfPluginManagerUtil instance. The plugins can 

	 * call the method getAuthKeys() of this class, with its pluginID to 

	 * get the OAuth keys, keys are returned only if this plugin is 

	 * authorised by Smf franework

	 */

	SmfPostProviderPlugin( SmfPluginManagerUtil* aUtil );

	/**

	 * Destructor

	 */

	~SmfPostProviderPlugin( );

	/**

	 * Method that returns maximum no of chars (unicode) that service 

	 * provider can post without truncation. Negative value means 

	 * no limit

	 * @return Max characters that can be posted without truncation

	 */

	virtual qint32 maxCharsInPost( ) const = 0;

	/**

	 * Method that returns maximum no of items that can be returned 

	 * in a single query to getPosts. Negative value means feature 

	 * not supported.

	 * @return Max items that can be returned in a single query

	 */

	virtual qint32 maxItems( ) const = 0;

	/**

	 * <Method that returns all the formatting of posts that this 

	 * service provider supports. May return 0 items to mean 

	 * only QString is supported.

	 * @return Supported formats of posts

	 */

	virtual QVector<QTextFormat> supportedFormats ( ) const = 0;

	/**

	 * Method that returns whether this SP supports Appearence

	 * @return Returns true if Appearance is supported, else false. 

	 * @see SmfAppearenceInfo

	 */

	virtual bool supportsAppearence ( ) const = 0;

	/**

	 * Method to get the latest posts

	 * @param aRequest [out] The request data to be sent to network

	 * @param aUser The user's contact in this SP, omit for self contact

	 * @param aPageNum The page to be extracted

	 * @param aItemsPerPage Number of items per page

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError retrieve( SmfPluginRequestData &aRequest,

			const SmfContact &aUser = 0,

			const int aPageNum = SMF_FIRST_PAGE, 

			const int aItemsPerPage = SMF_ITEMS_PER_PAGE ) = 0;

	/**

	 * Method to update a post to own area.

	 * @param aRequest [out] The request data to be sent to network

	 * @param aPostData The post data to be posted

	 * @param aLocation The location

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError post( SmfPluginRequestData &aRequest,

			const SmfPost &aPostData, 

			const SmfPlace &aLocation ) = 0;

	/**

	 * Method to update the last post to own area with new data

	 * @param aRequest [out] The request data to be sent to network

	 * @param aPostData The edited/new data to be posted

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError updatePost( SmfPluginRequestData &aRequest,

			const SmfPost &aPostData ) = 0;

	/**

	 * Method to update a post to a particular contact

	 * @param aRequest [out] The request data to be sent to network

	 * @param aPostData The post data to be posted

	 * @param aContact The contact where the data has to be posted

	 * @param aLocation The location

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError postDirected( SmfPluginRequestData &aRequest,

			const SmfPost &aPostData, 

			const SmfContact &aContact, 

			const SmfPlace &aLocation = NULL ) = 0;

	/**

	 * Method to post a comment on a post.

	 * @param aRequest [out] The request data to be sent to network

	 * @param aTarget Post on which comment has to be posted

	 * @param aComment comment to be posted

	 * @param aLocation location data

	 */

	virtual SmfPluginError commentOnAPost(SmfPluginRequestData &aRequest,

			const SmfPost& aTarget,

			const SmfPost& aComment, 

			const SmfPlace &aLocation = NULL);

	/**

	 * Method to update the presence information of the user

	 * @param aRequest [out] The request data to be sent to network

	 * @param aAppearence The appearence information

	 * @param aStatus The status string

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError postAppearence( SmfPluginRequestData &aRequest,  

			const SmfPresenceInfo &aAppearence,

			const QString &aStatus ) = 0;

	/**

	 * Share /a contact's post to user's friends and followers

	 * (e.g. retweet in twitter, share on facebook)

	 * @param aRequest [out] The request data to be sent to network

	 * @param aPostData data to be posted

	 * @param aContact contact to which the post belonged

	 * @param aEdited whether user changed items within the post

	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone

	 */

	virtual SmfPluginError sharePost( SmfPluginRequestData &aRequest, 

			const SmfPost& aPostData, 

			const SmfContact& aContact, 

			const bool &aEdited);

	};

Q_DECLARE_INTERFACE( SmfPostProviderPlugin, "org.symbian.smf.plugin.contact.posts/v1.0" );

#endif /* SMFPOSTPROVIDERPLUGIN_H_ */