package com.beem.project.beem.ui;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.ProgressDialog;

import android.content.ComponentName;

import android.content.DialogInterface;

import android.content.Intent;

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.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

import com.beem.project.beem.R;

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

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

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

import com.beem.project.beem.utils.Status;

/**

 * This class represents an activity which allows the user to connect to an XMPP server with his username/password

 * @author dasilvj

 */

public class Login extends Activity {

    protected static final String TAG = "LOG_AS";

    private static final Intent SERVICE_INTENT = new Intent();

    static {

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

    }

    private final Handler connectionHandler = new Handler();

    private ProgressDialog progressDialog = null;

    private boolean mIsConnected = false;

    private final ServiceConnection mServConn = new BeemServiceConnection();

    private IXmppFacade xmppFacade = null;

    /**

     * Create an about "BEEM" dialog

     */

    public void createAboutDialog() {

	AlertDialog.Builder builder = new AlertDialog.Builder(this);

	builder.setTitle(R.string.login_about_title).setMessage(R.string.login_about_msg).setCancelable(false);

	builder.setNeutralButton(R.string.login_about_button, new DialogInterface.OnClickListener() {

	    public void onClick(DialogInterface dialog, int whichButton) {

		dialog.cancel();

	    }

	});

	AlertDialog aboutDialog = builder.create();

	aboutDialog.show();

    }

    /**

     * Create Login activity

     */

    @Override

    public void onCreate(Bundle savedInstanceState) {

	super.onCreate(savedInstanceState);

	setContentView(R.layout.login);

	Button button = (Button) findViewById(R.id.log_as_settings);

	button.setOnClickListener(new OnClickListener() {

	    @Override

	    public void onClick(View v) {

		startActivity(new Intent(Login.this, EditSettings.class));

	    }

	});

	button = (Button) findViewById(R.id.log_as_login);

	button.setOnClickListener(new OnClickListener() {

	    @Override

	    public void onClick(View v) {

		bindService(Login.SERVICE_INTENT, mServConn, BIND_AUTO_CREATE);

	    }

	});

	progressDialog = new ProgressDialog(this);

    }

    @Override

    protected void onDestroy() {

	super.onDestroy();

	if (mIsConnected || xmppFacade == null) {

	    unbindService(mServConn);

	}

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void onStart() {

	super.onStart();

	Log.e("LOGIN", "BINDSERVICE");

	bindService(Login.SERVICE_INTENT, mServConn, BIND_AUTO_CREATE);

    }

    private class BeemConnectionListener extends IBeemConnectionListener.Stub {

	private class ErrorRunnable implements Runnable {

	    private final String mErrorMsg;

	    public ErrorRunnable(String errorMsg) {

		mErrorMsg = errorMsg;

	    }

	    @Override

	    public void run() {

		progressDialog.setMessage(mErrorMsg);

	    }

	}

	@Override

	public void connectionClosed() throws RemoteException {

	    Log.e("Login", "CONNECTIONCLOSED");

	}

	@Override

	public void connectionClosedOnError() throws RemoteException {

	    Log.e("Login", "CONNECTIONCLOSEONERROR");

	}

	@Override

	public void connectionFailed(String errorMsg) throws RemoteException {

	    mIsConnected = false;

	    if (xmppFacade != null) {

		Login.this.unbindService(mServConn);

		Login.this.stopService(SERVICE_INTENT);

	    }

	    connectionHandler.post(new ErrorRunnable(errorMsg));

	    dismissProgressDialog();

	    showToast(errorMsg);

	}

	private void showToast(final String errorMsg) {

	    connectionHandler.post(new Runnable() {

		@Override

		public void run() {

		    Toast.makeText(Login.this, errorMsg, Toast.LENGTH_LONG).show();

		    TextView labelError = (TextView) findViewById(R.id.log_as_msg);

		    labelError.setText(errorMsg);

		}

	    });

	}

	private void dismissProgressDialog() {

	    connectionHandler.post(new Runnable() {

		@Override

		public void run() {

		    progressDialog.dismiss();

		}

	    });

	}

	@Override

	public void onConnect() throws RemoteException {

	    mIsConnected = true;

	    dismissProgressDialog();

	    Log.i(getString(R.string.login_tag), "Connected.");

	    xmppFacade.changeStatus(Status.CONTACT_STATUS_AVAILABLE, null);

	    startActivity(new Intent(Login.this, ContactList.class));

	    finish();

	}

	@Override

	public void reconnectingIn(int seconds) throws RemoteException {

	    mIsConnected = true;

	}

	@Override

	public void reconnectionFailed() throws RemoteException {

	    mIsConnected = false;

	}

	@Override

	public void reconnectionSuccessful() throws RemoteException {

	    mIsConnected = true;

	}

    }

    private class BeemServiceConnection implements ServiceConnection {

	private IXmppConnection xmppConnection = null;

	@Override

	public void onServiceConnected(ComponentName name, IBinder service) {

	    mIsConnected = true;

	    xmppFacade = IXmppFacade.Stub.asInterface(service);

	    try {

		xmppConnection = xmppFacade.createConnection();

		xmppConnection.addConnectionListener(new BeemConnectionListener());

		if (!xmppConnection.isAuthentificated()) {

		    connectionHandler.post(new Runnable() {

			@Override

			public void run() {

			    progressDialog.setMessage("Connecting. Please wait...");

			    progressDialog.show();

			}

		    });

		    Login.this.startService(Login.SERVICE_INTENT);

		} else {

		    startActivity(new Intent(Login.this, ContactList.class));

		    finish();

		}

	    } catch (RemoteException e) {

		Log.e(getString(R.string.login_tag), "REMOTE EXCEPTION $" + e.getMessage());

	    }

	}

	@Override

	public void onServiceDisconnected(ComponentName name) {

	    mIsConnected = false;

	    xmppFacade = null;

	}

    }

}