package com.beem.project.beem;

import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.Roster;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.Roster.SubscriptionMode;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.Presence;
import org.jivesoftware.smack.proxy.ProxyInfo;
import org.jivesoftware.smack.proxy.ProxyInfo.ProxyType;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;

import com.beem.project.beem.service.XmppConnectionAdapter;
import com.beem.project.beem.service.XmppFacade;
import com.beem.project.beem.service.aidl.IBeemConnectionListener;
import com.beem.project.beem.service.aidl.IXmppFacade;
import com.beem.project.beem.ui.Subscription;

/**
 * This class is for the Beem service.
 * The connection to the xmpp server will be made asynchronously when the service
 * will start.
 * @author darisk
 */
public class BeemService extends Service {

    /**
     * The id to use for status notification.
     */
    public static final int NOTIFICATION_STATUS_ID = 100;

    private NotificationManager mNotificationManager;
    private XmppConnectionAdapter mConnection;
    private SharedPreferences mSettings;
    private String mLogin;
    private String mPassword;
    private String mHost;
    private String mService;
    private int mPort;
    private ConnectionConfiguration mConnectionConfiguration;
    private ProxyInfo mProxyInfo;
    private boolean mUseProxy;
    private IXmppFacade.Stub mBind;

    /**
     * Constructor.
     */
    public BeemService() {
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public IBinder onBind(Intent intent) {
	return mBind;
	// to forbid a client to bind
	// return null;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onCreate() {

	super.onCreate();
	mSettings = getSharedPreferences(getString(R.string.PreferenceFileName), MODE_PRIVATE);
	mLogin = mSettings.getString(getString(R.string.PreferenceLoginKey), "");
	mPassword = mSettings.getString(getString(R.string.PreferencePasswordKey), "");
	mHost = mSettings.getString(getString(R.string.PreferenceHostKey), "");
	mPort = mSettings.getInt(getString(R.string.PreferencePortKey), 5222);
	mService = mSettings.getString(getString(R.string.PreferenceService), "");
	
	// TODO penser a commenter
	// mHost = "10.0.2.2";
	initConnectionConfig();
	mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
	mConnection = new XmppConnectionAdapter(mConnectionConfiguration, mLogin, mPassword, this);
	initRosterRequestListener();
	mBind = new XmppFacade(mConnection, this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onStart(Intent intent, int startId) {
	try {
	    mConnection.connectAsync();
	} catch (RemoteException e) {
	    // TODO Auto-generated catch block
	    e.printStackTrace();
	}
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onDestroy() {
	closeConnection();
	mNotificationManager.cancel(NOTIFICATION_STATUS_ID);
    }

    /**
     * Show a notification.
     * @param id 	the id of the notification.
     * @param notif	the notification to show
     */
    public void sendNotification(int id, Notification notif) {
	mNotificationManager.notify(id, notif);
    }

    /**
     * Initialise la configuration de la connexion.
     */
    private void initConnectionConfig() {
	//TODO mettre a false par defaut et remplacer les valeurs par defaut
	mUseProxy = mSettings.getBoolean(getString(R.string.PreferenceUseProxy), false);
	if (mUseProxy) {
	    String stype = mSettings.getString(getString(R.string.PreferenceProxyType),
		getString(R.string.PreferenceProxyTypeHttp));
	    String phost = mSettings.getString(getString(R.string.PreferenceProxyHost), "");
	    String puser = mSettings.getString(getString(R.string.PreferenceProxyUser), "");
	    String ppass = mSettings.getString(getString(R.string.PreferenceProxyPassword), "");
	    int pport =  mSettings.getInt(getString(R.string.PreferenceProxyPort), 1080);
	    ProxyInfo.ProxyType type = ProxyType.valueOf(stype);
	    mProxyInfo = new ProxyInfo(type, phost, pport, puser, ppass);
	    mConnectionConfiguration = new ConnectionConfiguration(mHost, mPort, mService, mProxyInfo);
	} else {
	    mConnectionConfiguration = new ConnectionConfiguration(mHost, mPort);
	}
	mConnectionConfiguration.setDebuggerEnabled(false);
	mConnectionConfiguration.setSendPresence(true);
    }

    private void initRosterRequestListener() {
	Roster.setDefaultSubscriptionMode(SubscriptionMode.manual);
	final XMPPConnection con =  mConnection.getAdaptee();
	try {
	    // l'ajout d'un packet listener ne peut etre effectuer que lorsqu'on est connecte au serveur
	    mConnection.addConnectionListener(new IBeemConnectionListener.Stub() {

		@Override
		public void reconnectionSuccessful() throws RemoteException {
		    // TODO Auto-generated method stub
		    PacketFilter filter = new PacketFilter() {

			@Override
			public boolean accept(Packet packet) {
			    if (packet instanceof Presence) {
				Presence pres = (Presence) packet;
				if (pres.getType() == Presence.Type.subscribe)
				    return true;
			    }
			    return false;
			}
		    };
		    con.addPacketListener(new PacketListener() {

			@Override
			public void processPacket(Packet packet) {
			    // TODO Auto-generated method stub
			    Log.d("TEST", "Une demande recue");
			}
		    }, filter);
		}

		@Override
		public void reconnectionFailed() throws RemoteException {
		    // TODO Auto-generated method stub

		}

		@Override
		public void reconnectingIn(int seconds) throws RemoteException {
		    // TODO Auto-generated method stub

		}


		@Override
		public void onConnect() throws RemoteException {
		    
		    PacketFilter filter = new PacketFilter() {

			@Override
			public boolean accept(Packet packet) {
			    if (packet instanceof Presence) {
				Presence pres = (Presence) packet;
				if (pres.getType() == Presence.Type.subscribe)
				    return true;
			    }
			    return false;
			}
		    };
		    con.addPacketListener(new PacketListener() {

			@Override
			public void processPacket(Packet packet) {
			    String from = packet.getFrom();
			    Notification notif = new Notification(com.beem.project.beem.R.drawable.signal, "Demande d'ajout", System
				.currentTimeMillis());
			    notif.defaults = Notification.DEFAULT_ALL;
			    notif.flags = Notification.FLAG_AUTO_CANCEL;
			    Intent intent = new Intent(BeemService.this, Subscription.class);
			    intent.putExtra("from", from);
			    notif.setLatestEventInfo(BeemService.this, from, "demande d'ajout de " + from, PendingIntent.getActivity(BeemService.this, 0,
				intent, PendingIntent.FLAG_ONE_SHOT));
			    int id = packet.hashCode();
			    sendNotification(id, notif);
			}
		    }, filter);

		}

		@Override
		public void connectionClosedOnError() throws RemoteException {
		    // TODO Auto-generated method stub

		}

		@Override
		public void connectionClosed() throws RemoteException {
		    // TODO Auto-generated method stub

		}


		@Override
		public void connectionFailed(String errorMsg) throws RemoteException {
		    // TODO Auto-generated method stub

		}
	    });
	} catch (RemoteException e) {
	    // TODO Auto-generated catch block
	    e.printStackTrace();
	}
    }

    /**
     * Close the connection to the xmpp server.
     */
    private void closeConnection() {
	if (mConnection != null)
	    mConnection.disconnect();
    }


}
