package fr.zng.xxzx.mqtt;
import javax.swing.JComponent;
import javax.swing.JTextArea;

import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.eclipse.paho.client.mqttv3.MqttPersistenceException;
import org.eclipse.paho.client.mqttv3.MqttTopic;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;

import fr.zng.xxzx.common.cacheData.ZngCacheData;
import fr.zng.xxzx.common.util.CommUtil;
import fr.zng.xxzx.main.XmtApplication;
/**
 * 
 * Title:Server
 * Description: 服务器向多个客户端推送主题，即不同客户端可向服务器订阅相同主题
 * @author chenrl
 * 2016年1月6日下午3:29:28
 */
public class Server {

    public static String HOST = "";
    public static String SUBSCRIBETOPIC = "";
    public static String TOPIC = "";
    public static String clientid = "";
    private MqttTopic topic;
    public static int connectTimeOut = 10;
    public static int keepAlive = 20;
    private static MqttClient client;
    public static String userName = "";
    public static String passWord = "";

    private MqttMessage message;
    private JTextArea jta;
//    private static Server singleton;
//	public static Server getInstance(JTextArea jta) {
//		if (singleton == null) {
//			try {
//				singleton = new Server(jta);
//			} catch (MqttException e) {
//				e.printStackTrace();
//			}
//		}
//		return singleton;
//	}
    
    public Server(JTextArea jta) throws MqttException {
        // MemoryPersistence设置clientid的保存形式，默认为以内存保存
    	client = new MqttClient(HOST, clientid, new MemoryPersistence());
    	this.jta = jta;
    	connect();
    }

    private void connect() {
        MqttConnectOptions options = new MqttConnectOptions();
        options.setCleanSession(false);
        options.setUserName(userName);
        options.setPassword(passWord.toCharArray());
        // 设置超时时间
        options.setConnectionTimeout(connectTimeOut);
        // 设置会话心跳时间
        options.setKeepAliveInterval(keepAlive);
        try {
            client.setCallback(new PushCallback(jta));
            client.connect(options);
//            if(!"".equals(TOPIC)) {
//            	topic = client.getTopic(TOPIC);
//            }
            
            CommUtil.doPrint(jta, "MQTT:", "连接成功");
            ZngCacheData.isConnect = 1;
            XmtApplication.changeConnectState(1);
            //订阅消息  
            int[] Qos  = {1};  
            String[] topic1 = {SUBSCRIBETOPIC};  
            client.subscribe(topic1, Qos);
            CommUtil.doPrint(jta, "MQTT:", "开始订阅主题"+SUBSCRIBETOPIC);
        } catch (Exception e) {
            e.printStackTrace();
            client = null;
        	CommUtil.doPrint(jta, "MQTT:", "连接失败："+e.getMessage());
        }
    }

    public void publish(MqttTopic topic , MqttMessage message) throws MqttPersistenceException,
            MqttException {
        MqttDeliveryToken token = topic.publish(message);
        token.waitForCompletion();
        System.out.println("message is published completely! "
                + token.isComplete());
    }

    public static void close() {
//    	if(client!=null) {
//    		try {
//				client.disconnect();
//				client.close();
//			} catch (MqttException e) {
//				e.printStackTrace();
//			}
//    	}
    	
//    	if(singleton!=null) {
//    		singleton = null;
//    	}
    }
    
    public static void main(String[] args) throws MqttException {
//        Server server = new Server();
//        
//        for(int i=0;i<100;i++){
//        	  server.message = new MqttMessage();
//              server.message.setQos(2);
//              server.message.setRetained(true);
//              server.message.setPayload(("给客户端124推送的信息"+i).getBytes());
//              server.publish(server.topic , server.message);
//        }
//
//        server.message = new MqttMessage();
//        server.message.setQos(2);
//        server.message.setRetained(true);
//        server.message.setPayload("给客户端125推送的信息".getBytes());
//        server.publish(server.topic125 , server.message);
//
//        System.out.println(server.message.isRetained() + "------ratained状态");
    }
}