/*
 This file is part of Subsonic.

 Subsonic 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.

 Subsonic 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 Subsonic.  If not, see <http://www.gnu.org/licenses/>.

 Copyright 2010 (C) Sindre Mehus
 */
package org.moire.ultrasonic.service.parser;

import android.content.Context;

import org.moire.ultrasonic.R;
import org.moire.ultrasonic.domain.Lyrics;
import org.moire.ultrasonic.util.ProgressListener;

import org.xmlpull.v1.XmlPullParser;

import java.io.Reader;

/**
 * @author Sindre Mehus
 */
public class LyricsParser extends AbstractParser
{

	public LyricsParser(Context context)
	{
		super(context);
	}

	public Lyrics parse(Reader reader, ProgressListener progressListener) throws Exception
	{
		updateProgress(progressListener, R.string.parser_reading);
		init(reader);

		Lyrics lyrics = null;
		int eventType;
		do
		{
			eventType = nextParseEvent();
			if (eventType == XmlPullParser.START_TAG)
			{
				String name = getElementName();
				if ("lyrics".equals(name))
				{
					lyrics = new Lyrics();
					lyrics.setArtist(get("artist"));
					lyrics.setTitle(get("title"));
				}
				else if ("error".equals(name))
				{
					handleError();
				}
			}
			else if (eventType == XmlPullParser.TEXT)
			{
				if (lyrics != null && lyrics.getText() == null)
				{
					lyrics.setText(getText());
				}
			}
		} while (eventType != XmlPullParser.END_DOCUMENT);

		validate();
		return lyrics;
	}
}
