package com.beem.project.beem.ui;

import java.util.ArrayList;

import java.util.List;

import android.app.AlertDialog;

import android.app.ListActivity;

import android.content.ComponentName;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.Handler;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.EditText;

import com.beem.project.beem.BeemService;

import com.beem.project.beem.R;

import com.beem.project.beem.service.PrivacyListItem;

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

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

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

import com.beem.project.beem.utils.BeemBroadcastReceiver;

/**

 * This class represents an activity which allows the user to manage his privacy lists.

 * @author Jean-Manuel Da Silva <dasilvj at beem-project dot com>

 */

public class PrivacyList extends ListActivity {

    private static final String TAG = "PrivacyList";

    private static final Intent SERVICE_INTENT = new Intent();

    static {

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

    }

    private Handler mHandler = new Handler();

    private ArrayAdapter<String> mAdapter;

    private final List<String> mPrivacyListNames = new ArrayList<String>();

    private final ServiceConnection mConn = new BeemServiceConnection();

    private BeemBroadcastReceiver mBroadcastReceiver;

    private IPrivacyListManager mPrivacyListManager;

    private IPrivacyListListener mPrivacyListListener;

    /**

     * Constructor.

     */

    public PrivacyList() {

	super();

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    protected void onCreate(Bundle savedInstanceState) {

	super.onCreate(savedInstanceState);

	Log.d(TAG, "BEGIN onCreate.");

	setContentView(R.layout.privacy_list);

	mHandler = new Handler();

	mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mPrivacyListNames);

	setListAdapter(mAdapter);

	mPrivacyListListener = new PrivacyListListener();

	mBroadcastReceiver = new BeemBroadcastReceiver(mConn);

	this.registerReceiver(mBroadcastReceiver, new IntentFilter(BeemBroadcastReceiver.BEEM_CONNECTION_CLOSED));

	Log.d(TAG, "END onCreate.");

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    protected void onDestroy() {

	super.onDestroy();

	Log.v(TAG, "BEGIN onDestroy.");

	this.unregisterReceiver(mBroadcastReceiver);

	if (mPrivacyListManager != null) {

	    try {

		mPrivacyListManager.removePrivacyListListener(mPrivacyListListener);

	    } catch (RemoteException e) {

		Log.e(TAG, e.getMessage());

	    }

	}

	Log.v(TAG, "END onDestroy.");

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    protected void onStart() {

	super.onStart();

	Log.v(TAG, "BEGIN onStart.");

	bindService(new Intent(this, BeemService.class), mConn, BIND_AUTO_CREATE);

	Log.v(TAG, "END onStart.");

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    protected void onStop() {

	super.onStop();

	Log.v(TAG, "BEGIN onStop.");

	if (mBroadcastReceiver.isBinded()) {

	    unbindService(mConn);

	}

	Log.v(TAG, "END onStop.");

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    public final boolean onCreateOptionsMenu(Menu menu) {

	super.onCreateOptionsMenu(menu);

	MenuInflater inflater = getMenuInflater();

	inflater.inflate(R.menu.privacy_list, menu);

	return true;

    }

    /**

     * {@inheritDoc}.

     */

    @Override

    public final boolean onOptionsItemSelected(MenuItem item) {

	switch (item.getItemId()) {

	    case R.id.privacy_list_menu_create:

		return true;

	    default:

		return false;

	}

    }

    private final class BeemServiceConnection implements ServiceConnection {

	private IXmppFacade mXmppFacade;

	@Override

	public void onServiceConnected(ComponentName name, IBinder service) {

	    Log.v(TAG, "BEGIN onServiceConnected.");

	    mXmppFacade = IXmppFacade.Stub.asInterface(service);

	    mBroadcastReceiver.setBinded(true);

	    try {

		mPrivacyListManager = mXmppFacade.getPrivacyListManager();

		mPrivacyListManager.addPrivacyListListener(mPrivacyListListener);

		mPrivacyListNames.addAll(mPrivacyListManager.getPrivacyLists());

		mAdapter.notifyDataSetChanged();

	    } catch (RemoteException e) {

		Log.e(TAG, e.getMessage());

	    }

	    Log.v(TAG, "END onServiceConnected.");

	}

	@Override

	public void onServiceDisconnected(ComponentName name) {

	    Log.v(TAG, "BEGIN onServiceDisconnected.");

	    mXmppFacade = null;

	    mBroadcastReceiver.setBinded(false);

	    try {

		mPrivacyListManager.removePrivacyListListener(mPrivacyListListener);

	    } catch (RemoteException e) {

		Log.e(TAG, e.getMessage());

	    }

	    Log.v(TAG, "END onServiceDisconnected.");

	}

    }

    private class PrivacyListListener extends IPrivacyListListener.Stub {

	@Override

	public void setPrivacyList(String listName, List<PrivacyListItem> listItem) throws RemoteException {

	    Log.d(TAG, "BEGIN PrivacyListListener >> setPrivacyList.");

	    Log.d(TAG, "> " + listName + " has been setted.");

	    Log.d(TAG, "END PrivacyListListener >> setPrivacyList.");

	}

	@Override

	public void updatedPrivacyList(final String listName) throws RemoteException {

	    Log.d(TAG, "BEGIN PrivacyListListener >> updatedPrivacyList.");

	    mHandler.post(new Runnable() {

		@Override

		public void run() {

		    try {

			mPrivacyListNames.clear();

			// Not that much lists and require some server queries to know if the list has been

			// updated/deleted or set to default/active by this activity or another IM client.

			mPrivacyListNames.addAll(mPrivacyListManager.getPrivacyLists());

		    } catch (RemoteException e) {

			Log.e(TAG, e.getMessage());

		    }

		    mAdapter.notifyDataSetChanged();

		}

	    });

	    Log.d(TAG, "END PrivacyListListener >> updatedPrivacyList.");

	}

    }

}