package chat.server.moquette;

import org.apache.log4j.Logger;

import chat.server.moquette.message.ClientID;
import io.netty.channel.ChannelDuplexHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.timeout.IdleState;
import io.netty.handler.timeout.IdleStateEvent;


public class MqttIdleTimeoutHandler extends ChannelDuplexHandler {

    private static Logger logger;
    
    static {
    	logger = Logger.getLogger(MqttIdleTimeoutHandler.class);
    }

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt instanceof IdleStateEvent) {
            IdleState e = ((IdleStateEvent) evt).state();
            if (e == IdleState.READER_IDLE) {
            	ClientID clientId = ClientID.valueOf(ctx.channel());
            	logger.info("Firing channel inactive event. MqttClientId = " + clientId);

                ctx.fireChannelInactive();
                ctx.close();
            }
        } 
        else {
            if (logger.isDebugEnabled()) {
            	ClientID clientId = ClientID.valueOf(ctx.channel());
            	logger.debug("Firing Netty event. MqttClientId = " + clientId + ", eventClass = " + evt.getClass().getName());
            }
            
            super.userEventTriggered(ctx, evt);
        }
    }
    
}