/**

 * 

 */

package com.beem.project.beem;

import java.util.LinkedList;

import java.util.List;

import android.app.Activity;

import android.app.Application;

import android.app.ProgressDialog;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.ServiceConnection;

import android.content.res.Configuration;

import android.content.res.Resources;

import android.os.Handler;

import android.os.IBinder;

import android.os.Message;

import android.os.RemoteException;

import com.beem.project.beem.service.aidl.IBeemConnectionListener;

import com.beem.project.beem.service.aidl.IXmppConnection;

import com.beem.project.beem.service.aidl.IXmppFacade;

/**

 * The Beem application. This class has some methods utiliy needs by the activities.

 * @author darisk

 */

public class BeemApplication extends Application {

    private static BeemApplication mBeemApp;

    private static final Intent SERVICE_INTENT = new Intent();

    private IXmppFacade mFacade;

    private Context mApplicationContext;

    private Resources mPrivateResources;

    private List<Message> mQueue = new LinkedList<Message>();

    private boolean mIsConnected;

    private IXmppConnection mConnection;

    private ProgressDialog mProgressDialog;

    private ConnectionListener mConnectionListener = new ConnectionListener();

    static {

	SERVICE_INTENT.setComponent(new ComponentName("com.beem.project.beem", "com.beem.project.beem.BeemService"));

    }

    private ServiceConnection mServConn = new ServiceConnection() {

	@Override

	public void onServiceDisconnected(ComponentName name) {

	    mFacade = null;

	    mIsConnected = false;

	}

	@Override

	public void onServiceConnected(ComponentName name, IBinder service) {

	    mIsConnected = true;

	    mFacade = IXmppFacade.Stub.asInterface(service);

	    try {

		mConnection = mFacade.createConnection();

		if (!mConnection.isAuthentificated()) {

		    mProgressDialog.show();

		    mConnection.addConnectionListener(mConnectionListener);

		    mApplicationContext.startService(BeemApplication.SERVICE_INTENT);

		}

	    } catch (RemoteException e) {

		// TODO Auto-generated catch block

		e.printStackTrace();

	    }

	    synchronized (mQueue) {

		for (Message msg : mQueue) {

		    msg.sendToTarget();

		}

		mQueue.clear();

	    }

	}

    };

    /**

     * Constructor.

     */

    public BeemApplication() {

	// TODO Auto-generated constructor stub

    }

    /**

     * Get the Beem application for an activity.

     * @param activity the activity which want the Beem application

     * @return the Beem application

     */

    public static BeemApplication getApplication(Activity activity) {

	if (mBeemApp == null) {

	    mBeemApp = new BeemApplication();

	}

	mBeemApp.mProgressDialog = new ProgressDialog(activity);

	mBeemApp.mApplicationContext = activity.getApplication();

	mBeemApp.mPrivateResources = activity.getResources();

	mBeemApp.onCreate();

	return mBeemApp;

    }

    /**

     * Start the beem service.

     */

    public synchronized void startBeemService() {

	if (!mIsConnected) {

	    // the connection will be made on service connect

	    mApplicationContext.bindService(BeemApplication.SERVICE_INTENT, mServConn, BIND_AUTO_CREATE);

	}

    }

    /**

     * Stop the Beem service.

     */

    public synchronized void stopBeemService() {

	if (mIsConnected) {

	    Intent intent = new Intent();

	    intent.setComponent(new ComponentName("com.beem.project.beem", "com.beem.project.beem.BeemService"));

	    mApplicationContext.unbindService(mServConn);

	    mApplicationContext.stopService(intent);

	    mIsConnected = false;

	}

    }

    /**

     * Get the facade to use to access the Beem service.

     * @return the facade or null if the application is not connected to the beem service.

     */

    public IXmppFacade getXmppFacade() {

	return mFacade;

    }

    /**

     * Add a methode to execute when the application is connected to the Beem service.

     * @param target the handler which will execute the callback

     * @param callback the callback to execute

     */

    public void callWhenServiceConnected(Handler target, Runnable callback) {

	Message msg = Message.obtain(target, callback);

	if (!mIsConnected) {

	    msg.sendToTarget();

	} else {

	    startBeemService();

	    synchronized (mQueue) {

		mQueue.add(msg);

	    }

	}

    }

    /**

     * Tell if we are connected with the Beem Service.

     * @return true if connected false otherwise

     */

    public boolean isConnected() {

	return mIsConnected;

    }

    /**

     * Connection listener use to hide the progress dialog.

     * @author darisk

     */

    private class ConnectionListener extends IBeemConnectionListener.Stub {

	/**

	 * Constructor.

	 */

	public ConnectionListener() {

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void connectionClosed() throws RemoteException {

	    // TODO Auto-generated method stub

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void connectionClosedOnError() throws RemoteException {

	    // TODO Auto-generated method stub

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void onConnect() throws RemoteException {

	    // TODO Auto-generated method stub

	    mProgressDialog.dismiss();

	    mFacade.changeStatus();

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void reconnectingIn(int seconds) throws RemoteException {

	    // TODO Auto-generated method stub

	    mProgressDialog.show();

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void reconnectionFailed() throws RemoteException {

	    // TODO Auto-generated method stub

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void reconnectionSuccessful() throws RemoteException {

	    // TODO Auto-generated method stub

	}

    }

}