/*

  Meanwhile - Unofficial Lotus Sametime Community Client Library

  Copyright (C) 2004  Christopher (siege) O'Brien

  This library is free software; you can redistribute it and/or

  modify it under the terms of the GNU Library General Public

  License as published by the Free Software Foundation; either

  version 2 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  Library General Public License for more details.

  You should have received a copy of the GNU Library General Public

  License along with this library; if not, write to the Free

  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#ifndef _MW_SRVC_CONF_H

#define _MW_SRVC_CONF_H

#include <glib.h>

#include "mw_common.h"

#ifdef __cplusplus

extern "C" {

#endif

/** Type identifier for the conference service */

#define mwService_CONFERENCE  0x80000010

enum mwConferenceState {

  mwConference_NEW,      /**< new outgoing conference */

  mwConference_PENDING,  /**< outgoing conference pending creation */

  mwConference_INVITED,  /**< invited to incoming conference */

  mwConference_OPEN,     /**< conference open and active */

  mwConference_CLOSING,  /**< conference is closing */

  mwConference_ERROR,    /**< conference is closing due to error */

  mwConference_UNKNOWN,  /**< unable to determine conference state */

};

/** @struct mwServiceConference

    Instance of the multi-user conference service */

struct mwServiceConference;

/** @struct mwConference

    A multi-user chat */

struct mwConference;

/** Handler structure used to provide callbacks for an instance of the

    conferencing service */

struct mwConferenceHandler {

  /** triggered when we receive a conference invitation. Call

      mwConference_accept to accept the invitation and join the

      conference, or mwConference_close to reject the invitation.

      @param conf     the newly created conference

      @param inviter  the indentity of the user who sent the invitation

      @param invite   the invitation text

   */

  void (*on_invited)(struct mwConference *conf,

		     struct mwLoginInfo *inviter, const char *invite);

  /** triggered when we enter the conference. Provides the initial

      conference membership list as a GList of mwLoginInfo structures

      @param conf     the conference just joined

      @param members  mwLoginInfo list of existing conference members

  */

  void (*conf_opened)(struct mwConference *conf, GList *members);

  /** triggered when a conference is closed. This is typically when

      we've left it */

  void (*conf_closed)(struct mwConference *, guint32 reason);

  /** triggered when someone joins the conference */

  void (*on_peer_joined)(struct mwConference *, struct mwLoginInfo *);

  /** triggered when someone leaves the conference */

  void (*on_peer_parted)(struct mwConference *, struct mwLoginInfo *);

  /** triggered when someone says something */

  void (*on_text)(struct mwConference *conf,

		  struct mwLoginInfo *who, const char *what);

  /** typing notification */

  void (*on_typing)(struct mwConference *conf,

		    struct mwLoginInfo *who, gboolean typing);

  /** optional. called from mwService_free */

  void (*clear)(struct mwServiceConference *srvc);

};

/** Allocate a new conferencing service, attaching the given handler

    @param sess     owning session

    @param handler  handler providing call-back functions for the service

 */

struct mwServiceConference *

mwServiceConference_new(struct mwSession *sess,

			struct mwConferenceHandler *handler);

/** @returns the conference handler for the service */

struct mwConferenceHandler *

mwServiceConference_getHandler(struct mwServiceConference *srvc);

/** a mwConference list of the conferences in this service. The GList

    will need to be destroyed with g_list_free after use */

GList *mwServiceConference_getConferences(struct mwServiceConference *srvc);

/** Allocate a new conference, in state NEW with the given title.

    @see mwConference_create */

struct mwConference *mwConference_new(struct mwServiceConference *srvc,

				      const char *title);

/** @returns the owning service of a conference */

struct mwServiceConference *mwConference_getService(struct mwConference *conf);

/** @returns unique conference name */

const char *mwConference_getName(struct mwConference *conf);

/** @returns conference title */

const char *mwConference_getTitle(struct mwConference *conf);

/** a mwIdBlock list of the members of the conference. The GList will

    need to be free'd after use */

GList *mwConference_getMembers(struct mwConference *conf);

/** Initiate a conference. Conference must be in state NEW. If no name

    or title for the conference has been set, they will be

    generated. Conference will be placed into state PENDING. */

int mwConference_open(struct mwConference *conf);

/** Leave and close an existing conference, or reject an invitation.

    Triggers mwServiceConfHandler::conf_closed and free's the

    conference.

 */

int mwConference_destroy(struct mwConference *conf,

			 guint32 reason, const char *text);

#define mwConference_reject(c,r,t) \

  mwConference_destroy((c),(r),(t))

/** accept a conference invitation. Conference must be in the state

    INVITED. */

int mwConference_accept(struct mwConference *conf);

/** invite another user to an ACTIVE conference

    @param conf  conference

    @param who   user to invite

    @param text  invitation message

 */

int mwConference_invite(struct mwConference *conf,

			struct mwIdBlock *who, const char *text);

/** send a text message over an open conference */

int mwConference_sendText(struct mwConference *conf, const char *text);

/** send typing notification over an open conference */

int mwConference_sendTyping(struct mwConference *conf, gboolean typing);

/** associate arbitrary client data and an optional cleanup function

    with a conference. If there is already client data with a clear

    function, it will not be called. */

void mwConference_setClientData(struct mwConference *conf,

				gpointer data, GDestroyNotify clear);

/** reference associated client data */

gpointer mwConference_getClientData(struct mwConference *conf);

/** remove associated client data if any, and call the cleanup

    function on the data as necessary */

void mwConference_removeClientData(struct mwConference *conf);

#ifdef __cplusplus

}

#endif

#endif /* _MW_SRVC_CONF_H */