/*
    *  Copyright 2004-2006 Stefan Reuter
    *
    *  Licensed under the Apache License, Version 2.0 (the "License");
    *  you may not use this file except in compliance with the License.
    *  You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
    *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   */
  package org.asteriskjava.live.internal;
  
  import java.util.Date;
  
  import org.asteriskjava.live.ManagerCommunicationException;
  import org.asteriskjava.live.MeetMeUser;
  import org.asteriskjava.live.MeetMeUserState;
  import org.asteriskjava.manager.action.CommandAction;
  
  class MeetMeUserImpl extends AbstractLiveObject implements MeetMeUser
  {
      private static final String COMMAND_PREFIX = "meetme";
      private static final String MUTE_COMMAND = "mute";
      private static final String UNMUTE_COMMAND = "unmute";
      private static final String KICK_COMMAND = "kick";
  
      private final MeetMeRoomImpl room;
      private final Integer userNumber;
      private final AsteriskChannelImpl channel;
      private final Date dateJoined;
  
      private Date dateLeft;
      private MeetMeUserState state;
      private boolean talking;
      private boolean muted;
  
      MeetMeUserImpl(AsteriskServerImpl server, MeetMeRoomImpl room, Integer userNumber,
              AsteriskChannelImpl channel, Date dateJoined)
      {
          super(server);
          this.room = room;
          this.userNumber = userNumber;
          this.channel = channel;
          this.dateJoined = dateJoined;
          this.state = MeetMeUserState.JOINED;
      }
  
      public MeetMeRoomImpl getRoom()
      {
          return room;
      }
  
      public Integer getUserNumber()
      {
          return userNumber;
      }
  
      public AsteriskChannelImpl getChannel()
      {
          return channel;
      }
  
      public Date getDateJoined()
      {
          return dateJoined;
      }
  
      public Date getDateLeft()
      {
          return dateLeft;
      }
  
      /**
       * Sets the status to {@link MeetMeUserState#LEFT} and dateLeft to the given date.
       * 
       * @param dateLeft the date this user left the room.
       */
      void left(Date dateLeft)
      {
          MeetMeUserState oldState;
          synchronized (this)
          {
              oldState = this.state;
              this.dateLeft = dateLeft;
              this.state = MeetMeUserState.LEFT;
          }
          firePropertyChange(PROPERTY_STATE, oldState, state);
      }
  
      public MeetMeUserState getState()
      {
          return state;
      }
 
     public boolean isTalking()
     {
         return talking;
     }
 
     void setTalking(boolean talking)
     {
         boolean oldTalking = this.talking;
         this.talking = talking;
         firePropertyChange(PROPERTY_TALKING, oldTalking, talking);
     }
 
     public boolean isMuted()
     {
         return muted;
     }
 
     void setMuted(boolean muted)
     {
         boolean oldMuted = this.muted;
         this.muted = muted;
         firePropertyChange(PROPERTY_MUTED, oldMuted, muted);
     }
 
     // action methods
 
     public void kick() throws ManagerCommunicationException
     {
         sendMeetMeUserCommand(KICK_COMMAND);
     }
 
     public void mute() throws ManagerCommunicationException
     {
         sendMeetMeUserCommand(MUTE_COMMAND);
     }
 
     public void unmute() throws ManagerCommunicationException
     {
         sendMeetMeUserCommand(UNMUTE_COMMAND);
     }
 
     private void sendMeetMeUserCommand(String command) throws ManagerCommunicationException
     {
         StringBuffer sb = new StringBuffer();
         sb.append(COMMAND_PREFIX);
         sb.append(" ");
         sb.append(command);
         sb.append(" ");
         sb.append(room.getRoomNumber());
         sb.append(" ");
         sb.append(userNumber);
 
         server.sendAction(new CommandAction(sb.toString()));
     }
     
     @Override
    public String toString()
     {
         StringBuffer sb;
         int systemHashcode;
 
         sb = new StringBuffer("MeetMeUser[");
 
         synchronized (this)
         {
             sb.append("dateJoined='").append(getDateJoined()).append("',");
             sb.append("dateLeft='").append(getDateLeft()).append("',");
             sb.append("talking=").append(isTalking()).append(",");
             sb.append("muted=").append(isMuted()).append(",");
             sb.append("room=").append(room).append(",");
             systemHashcode = System.identityHashCode(this);
         }
         sb.append("channel=AsteriskChannel[");
         synchronized (channel)
         {
             sb.append("id='").append(channel.getId()).append("',");
             sb.append("name='").append(channel.getName()).append("'],");
         }
         sb.append("systemHashcode=").append(systemHashcode);
         sb.append("]");
 
         return sb.toString();
     }
 }