/* Copyright (C) 2005-2011, Thorvald Natvig <thorvald@natvig.com>

   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   - Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.
   - Redistributions in binary form must reproduce the above copyright notice,
     this list of conditions and the following disclaimer in the documentation
     and/or other materials provided with the distribution.
   - Neither the name of the Mumble Developers nor the names of its
     contributors may be used to endorse or promote products derived from this
     software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef CHANNEL_H_
#define CHANNEL_H_

#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QObject>
#include <QtCore/QReadWriteLock>
#include <QtCore/QSet>
#include <QtCore/QString>

class User;
class Group;
class ChanACL;

class ClientUser;

class Channel : public QObject {
	private:
		Q_OBJECT
		Q_DISABLE_COPY(Channel)
	private:
		QSet<Channel *> qsUnseen;
	public:
		int iId;
		int iPosition;
		bool bTemporary;
		Channel *cParent;
		QString qsName;
		QString qsDesc;
		QByteArray qbaDescHash;
		QList<Channel *> qlChannels;
		QList<User *> qlUsers;
		QHash<QString, Group *> qhGroups;
		QList<ChanACL *> qlACL;

		QSet<Channel *> qsPermLinks;
		QHash<Channel *, int> qhLinks;

		bool bInheritACL;

		Channel(int id, const QString &name, QObject *p = NULL);
		~Channel();

#ifdef MUMBLE
		unsigned int uiPermissions;

		static QHash<int, Channel *> c_qhChannels;
		static QReadWriteLock c_qrwlChannels;

		static Channel *get(int);
		static Channel *add(int, const QString &);
		static void remove(Channel *);

		void addClientUser(ClientUser *p);
#endif
		static bool lessThan(const Channel *, const Channel *);

		size_t getLevel() const;
		size_t getDepth() const;

		void addChannel(Channel *c);
		void removeChannel(Channel *c);
		void addUser(User *p);
		void removeUser(User *p);

		bool isLinked(Channel *c) const;
		void link(Channel *c);
		void unlink(Channel *c = NULL);

		QSet<Channel *> allLinks();
		QSet<Channel *> allChildren();

		operator const QString() const;
};

#endif
