/android/import-contacts

/*

 * Doit.java

 *

 * Copyright (C) 2009 Tim Marston <edam@waxworlds.org>

 *

 * This file is part of the Import Contacts program (hereafter referred

 * to as "this program"). For more information, see

 * http://www.waxworlds.org/edam/software/android/import-contacts

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

package org.waxworlds.importcontacts;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.LinearLayout;

import android.widget.ProgressBar;

import android.widget.TextView;

import android.widget.Toast;

public class Doit extends WizardActivity

{

	private final static int DIALOG_ERROR = 0;

	private final static int DIALOG_CONTINUEORABORT = 1;

	private final static int DIALOG_MERGEPROMPT = 2;

	public final static int MESSAGE_FINISHED_ALLDONE = 0;

	public final static int MESSAGE_FINISHED = 1;

	public final static int MESSAGE_FINISHED_GOBACK = 2;

	public final static int MESSAGE_ERROR = 3;

	public final static int MESSAGE_CONTINUEORABORT = 4;

	public final static int MESSAGE_SETPROGRESSMESSAGE = 5;

	public final static int MESSAGE_SETMAXPROGRESS = 6;

	public final static int MESSAGE_SETTMPPROGRESS = 7;

	public final static int MESSAGE_SETPROGRESS = 8;

	public final static int MESSAGE_MERGEPROMPT = 9;

	public final static int MESSAGE_CONTACTOVERWRITTEN = 10;

	public final static int MESSAGE_CONTACTCREATED = 11;

	public final static int MESSAGE_CONTACTMERGED = 12;

	public final static int MESSAGE_CONTACTSKIPPED = 13;

	private boolean _startedProgress;

	private int _maxProgress;

	private int _tmpProgress;

	private int _progress;

	protected String _dialogMessage;

	private Dialog _mergePromptDialog;

	private boolean _mergePromptAlwaysSelected;

	private int _countOverwrites;

	private int _countCreates;

	private int _countMerges;

	private int _countSkips;

	protected Importer _importer = null;

	public Handler _handler;

	public class DoitHandler extends Handler

	{

		@Override

		public void handleMessage( Message msg ) {

			switch( msg.what )

			{

			case MESSAGE_FINISHED_ALLDONE:

				( (TextView)findViewById( R.id.doit_alldone ) ).

						setVisibility( View.VISIBLE );

				// fall through

			case MESSAGE_FINISHED:

				( (LinearLayout)findViewById( R.id.doit_closedisplay ) ).

						setVisibility( View.VISIBLE );

				break;

			case MESSAGE_FINISHED_GOBACK:

				( (Button)findViewById( R.id.back ) ).setEnabled( true );

				break;

			case MESSAGE_ERROR:

				Doit.this._dialogMessage = (String)msg.obj;

				showDialog( DIALOG_ERROR );

				break;

			case MESSAGE_CONTINUEORABORT:

				Doit.this._dialogMessage = (String)msg.obj;

				showDialog( DIALOG_CONTINUEORABORT );

				break;

			case MESSAGE_SETPROGRESSMESSAGE:

				( (TextView)findViewById( R.id.doit_percentage ) ).

						setText( (String)msg.obj );

				break;

			case MESSAGE_SETMAXPROGRESS:

				if( _maxProgress > 0 ) {

					if( _tmpProgress == _maxProgress )

						_tmpProgress = (Integer)msg.obj;

					if( _progress == _maxProgress )

						_progress = (Integer)msg.obj;

				}

				_maxProgress = (Integer)msg.obj;

				updateProgress();

				break;

			case MESSAGE_SETTMPPROGRESS:

				_tmpProgress = (Integer)msg.obj;

				updateProgress();

				break;

			case MESSAGE_SETPROGRESS:

				_startedProgress = true;

				_progress = (Integer)msg.obj;

				updateProgress();

				break;

			case MESSAGE_MERGEPROMPT:

				_dialogMessage = (String)msg.obj;

				showDialog( DIALOG_MERGEPROMPT );

				break;

			case MESSAGE_CONTACTOVERWRITTEN:

				_countOverwrites++;

				updateStats();

				break;

			case MESSAGE_CONTACTCREATED:

				_countCreates++;

				updateStats();

				break;

			case MESSAGE_CONTACTMERGED:

				_countMerges++;

				updateStats();

				break;

			case MESSAGE_CONTACTSKIPPED:

				_countSkips++;

				updateStats();

				break;

			default:

				super.handleMessage( msg );

			}

		}

	}

	@Override

	protected void onCreate(Bundle savedInstanceState)

	{

		setContentView( R.layout.doit );

		super.onCreate( savedInstanceState );

		// hide page 2

		( findViewById( R.id.doit_page_2 ) ).setVisibility( View.GONE );

		// set up begin button

		Button begin = (Button)findViewById( R.id.doit_begin );

		begin.setOnClickListener( new View.OnClickListener() {

			public void onClick( View view ) {

				importContacts();

			}

		} );

		// set up close button

		Button close = (Button)findViewById( R.id.doit_close );

		close.setOnClickListener( new View.OnClickListener() {

			public void onClick( View view ) {

				setResult( RESULT_CANCELED );

				finish();

			}

		} );

		_startedProgress = false;

		_maxProgress = 0;

		_tmpProgress = 0;

		_progress = 0;

		_handler = new DoitHandler();

		_countOverwrites = 0;

		_countCreates = 0;

		_countMerges = 0;

		_countSkips = 0;

		updateProgress();

		updateStats();

	}

	@Override

	protected void onPause()

	{

		super.onPause();

		// saving the state of an import sounds complicated! Lets just abort!

		abortImport();

		// destroy some stuff

		_importer = null;

		_handler = null;

	}

	@Override

	protected Dialog onCreateDialog(int id)

	{

		switch( id )

		{

		case DIALOG_ERROR:

			return new AlertDialog.Builder( this )

					.setIcon( R.drawable.alert_dialog_icon )

					.setTitle( R.string.error_title )

					.setMessage( "" )

					.setPositiveButton( R.string.error_ok,

							new DialogInterface.OnClickListener() {

						public void onClick(DialogInterface dialog,

								int whichButton) {

							Doit.this._importer.wake();

						}

					} )

					.setOnCancelListener( _dialogOnCancelListener )

					.create();

		case DIALOG_CONTINUEORABORT:

			return new AlertDialog.Builder( this )

					.setIcon( R.drawable.alert_dialog_icon )

					.setTitle( R.string.error_title )

					.setMessage( "" )

					.setPositiveButton( R.string.error_continue,

							new DialogInterface.OnClickListener() {

						public void onClick(DialogInterface dialog,

								int whichButton) {

							Doit.this._importer.wake(

									Importer.RESPONSE_POSITIVE );

						}

					} )

					.setNegativeButton( R.string.error_abort,

							new DialogInterface.OnClickListener() {

						public void onClick(DialogInterface dialog,

								int whichButton) {

							Doit.this._importer.wake(

									Importer.RESPONSE_NEGATIVE );

						}

					} )

					.setOnCancelListener( _dialogOnCancelListener )

					.create();

		case DIALOG_MERGEPROMPT:

			// custom layout in an AlertDialog

			LayoutInflater factory = LayoutInflater.from( this );

			final View dialogView = factory.inflate(

					R.layout.mergeprompt, null );

			( (CheckBox)dialogView.findViewById( R.id.mergeprompt_always ) ).

					setOnCheckedChangeListener(

							new CompoundButton.OnCheckedChangeListener() {

				public void onCheckedChanged( CompoundButton buttonView,

						boolean isChecked ) {

					Doit.this._mergePromptAlwaysSelected = isChecked;

				}

			} );

			( (Button)dialogView.findViewById( R.id.merge_keep ) ).

					setOnClickListener( _mergePromptButtonListener );

			( (Button)dialogView.findViewById( R.id.merge_overwrite ) ).

					setOnClickListener( _mergePromptButtonListener );

			( (Button)dialogView.findViewById( R.id.merge_merge ) ).

					setOnClickListener( _mergePromptButtonListener );

			_mergePromptAlwaysSelected = false;

			return new AlertDialog.Builder( this )

					.setIcon( R.drawable.alert_dialog_icon )

					.setTitle( R.string.mergeprompt_title )

					.setView( dialogView )

					.setOnCancelListener( _dialogOnCancelListener )

					.create();

		}

		return null;

	}

    private OnClickListener _mergePromptButtonListener = new OnClickListener() {

		public void onClick( View view ) {

			int responseExtra = _mergePromptAlwaysSelected?

					Importer.RESPONSEEXTRA_ALWAYS : Importer.RESPONSEEXTRA_NONE;

			Doit.this._mergePromptDialog.dismiss();

			Doit.this._mergePromptDialog = null;	// dont keep a reference!

			Doit.this._importer.wake( view.getId(), responseExtra );

		}

	};

	private DialogInterface.OnCancelListener _dialogOnCancelListener =

			new DialogInterface.OnCancelListener() {

		public void onCancel( DialogInterface dialog ) {

			setResult( RESULT_CANCELED );

			finish();

		}

	};

	@Override

	protected void onActivityResult( int requestCode, int resultCode,

			Intent data )

	{

		// if we're cancelling, abort any import

		if( resultCode == RESULT_CANCELED )

			abortImport();

	}

	@Override

	protected void onPrepareDialog(int id, Dialog dialog)

	{

		switch( id )

		{

		case DIALOG_ERROR:	// fall through

		case DIALOG_CONTINUEORABORT:

			// set dialog message

			( (AlertDialog)dialog ).setMessage( _dialogMessage );

			break;

		case DIALOG_MERGEPROMPT:

			// set contact's name

			( (TextView)dialog.findViewById( R.id.mergeprompt_name ) ).setText(

					_dialogMessage );

			// and set up reference to dialog

			_mergePromptDialog = dialog;

			break;

		}

		super.onPrepareDialog( id, dialog );

	}

	private void importContacts()

	{

		// switch interfaces

		( findViewById( R.id.doit_page_1 ) ).setVisibility( View.GONE );

		( findViewById( R.id.doit_page_2 ) ).setVisibility( View.VISIBLE );

		// disable back button

		( (Button)findViewById( R.id.back ) ).setEnabled( false );

		// create importer

		_importer = new VCFImporter( this );

		// start the service's thread

		_importer.start();

	}

	private void updateProgress()

	{

		ProgressBar bar = (ProgressBar)findViewById( R.id.doit_progress );

		TextView outOf = (TextView)findViewById( R.id.doit_outof );

		if( _maxProgress > 0 )

		{

			bar.setMax( _maxProgress );

			bar.setSecondaryProgress( _tmpProgress );

			if( _startedProgress )

			{

				( (TextView)findViewById( R.id.doit_percentage ) ).setText(

						(int)Math.round( 100 * _progress / _maxProgress ) + "%" );

				outOf.setText( _progress + "/" + _maxProgress );

				bar.setProgress( _progress );

			}

		}

	}

	private void updateStats()

	{

		( (TextView)findViewById( R.id.doit_overwrites ) ).setText(

				"" + _countOverwrites );

		( (TextView)findViewById( R.id.doit_creates ) ).setText(

				"" + _countCreates );

		( (TextView)findViewById( R.id.doit_merges ) ).setText(

				"" + _countMerges );

		( (TextView)findViewById( R.id.doit_skips ) ).setText(

				"" + _countSkips );

	}

	private void abortImport()

	{

		if( _importer != null )

		{

			// try and flag worker thread - did we need to?

			if( _importer.setAbort() )

			{

				// wait for worker thread to end

				while( true ) {

					try {

						_importer.join();

						break;

					}

					catch( InterruptedException e ) {}

				}

				// notify the user

		        Toast.makeText( this, R.string.doit_importaborted,

		        		Toast.LENGTH_LONG ).show();

			}

		}

	}

}