/**
* BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
* 
* Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 3.0 of the License, or (at your option) any later
* version.
* 
* BigBlueButton 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
*
*/
package org.bigbluebutton.red5.service;

import java.util.ArrayList;
import java.util.Map;

import org.bigbluebutton.red5.BigBlueButtonSession;
import org.bigbluebutton.red5.Constants;
import org.bigbluebutton.red5.pubsub.MessagePublisher;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.api.Red5;
import org.slf4j.Logger;

public class LockService {
	private static Logger log = Red5LoggerFactory.getLogger( LockService.class, "bigbluebutton" );

	private MessagePublisher red5BBBInGW;

	/**
	 * Internal function used to get the session
	 * */
	private BigBlueButtonSession getBbbSession() {
		return (BigBlueButtonSession) Red5.getConnectionLocal().getAttribute(Constants.SESSION);
	}

	public void setRed5Publisher(MessagePublisher inGW) {
		red5BBBInGW = inGW;
	}

	/**
	 * Called from client to get lock settings for this room. 
	 * */
	public void getLockSettings(){
		String meetingId = getBbbSession().getRoom();
		String userId = getMyUserId();

		red5BBBInGW.getLockSettings(meetingId, userId);
	}

	/**
	 * Called from client to get lock settings for this room.
	 * 
	 * If room don't have any lock settings, it applies the defaultSettings 
	 * sent from client (came from config.xml).
	 *
	 * Returns the new lock settings for the room. 
	 * */
	public void setLockSettings(Map<String, Boolean> newSettings){
		String meetingId = getBbbSession().getRoom();
		String userId = getMyUserId();
		red5BBBInGW.sendLockSettings(meetingId, userId, newSettings);
	}

	/**
	 * This method locks (or unlocks), based on lock parameter  
	 * all users but the users listed in array dontLockTheseUsers
	 * */
	public void setAllUsersLock(Boolean lock, ArrayList<String> dontLockTheseUsers){
		log.debug("setAllUsersLock ({}, {})", new Object[] { lock, dontLockTheseUsers });
	
	}

	/**
	 * This method locks or unlocks a specific user
	 * */
	public void setUserLock(Map<String, Object> msg) {
		String meetingID = Red5.getConnectionLocal().getScope().getName();
		String requesterID = getBbbSession().getInternalUserID();
		
		Boolean lock = (Boolean) msg.get("lock");
		String userId = (String) msg.get("userId");
		
		log.info("setUserLock ({}, {})", new Object[] { lock, userId });
		red5BBBInGW.lockUser(meetingID, requesterID, lock, userId);
	}

	public String getMyUserId() {
		BigBlueButtonSession bbbSession = (BigBlueButtonSession) Red5.getConnectionLocal().getAttribute(Constants.SESSION);
		assert bbbSession != null;
		return bbbSession.getInternalUserID();
	}
}