package de.danoeh.antennapod.storage;

import java.util.ArrayList;
import java.util.List;

import de.danoeh.antennapod.AppConfig;
import de.danoeh.antennapod.asynctask.DownloadStatus;
import de.danoeh.antennapod.feed.Feed;
import de.danoeh.antennapod.feed.FeedCategory;
import de.danoeh.antennapod.feed.FeedImage;
import de.danoeh.antennapod.feed.FeedItem;
import de.danoeh.antennapod.feed.FeedMedia;
import de.danoeh.antennapod.feed.SimpleChapter;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

/**
 * Implements methods for accessing the database
 * */
public class PodDBAdapter {
	private static final String TAG = "PodDBAdapter";
	private static final int DATABASE_VERSION = 1;
	private static final String DATABASE_NAME = "Antennapod.db";

	
	// -----------	Column indices
	// ----------- General indices
	public static final int KEY_ID_INDEX = 0;
	public static final int KEY_TITLE_INDEX = 1;
	public static final int KEY_FILE_URL_INDEX = 2;
	public static final int KEY_DOWNLOAD_URL_INDEX = 3;
	public static final int KEY_DOWNLOADED_INDEX = 4;
	public static final int KEY_LINK_INDEX = 5;
	public static final int KEY_DESCRIPTION_INDEX = 6;
	public static final int KEY_PAYMENT_LINK_INDEX = 7;
	// ----------- Feed indices
	public static final int KEY_LAST_UPDATE_INDEX = 8;
	public static final int KEY_LANGUAGE_INDEX = 9;
	public static final int KEY_AUTHOR_INDEX = 10;
	public static final int KEY_IMAGE_INDEX = 11;
	// ----------- FeedItem indices
	public static final int KEY_CONTENT_ENCODED_INDEX = 2;
	public static final int KEY_PUBDATE_INDEX = 3;
	public static final int KEY_READ_INDEX = 4;
	public static final int KEY_MEDIA_INDEX = 8;
	public static final int KEY_FEED_INDEX = 9;
	public static final int KEY_HAS_SIMPLECHAPTERS_INDEX = 10;
	// ---------- FeedMedia indices
	public static final int KEY_DURATION_INDEX = 1;
	public static final int KEY_POSITION_INDEX = 5;
	public static final int KEY_SIZE_INDEX = 6;
	public static final int KEY_MIME_TYPE_INDEX = 7;
	// --------- Download log indices
	public static final int KEY_FEEDFILE_INDEX = 1;
	public static final int KEY_FEEDFILETYPE_INDEX = 2;
	public static final int KEY_REASON_INDEX = 3;
	public static final int KEY_SUCCESSFUL_INDEX = 4;
	public static final int KEY_COMPLETION_DATE_INDEX = 5;
	// --------- Queue indices
	public static final int KEY_FEEDITEM_INDEX = 1;
	public static final int KEY_QUEUE_FEED_INDEX = 2;
	// --------- Simplechapters indices
	public static final int KEY_SC_START_INDEX = 2;
	public static final int KEY_SC_FEEDITEM_INDEX = 3;
	
	
	// Key-constants
	public static final String KEY_ID = "id";
	public static final String KEY_TITLE = "title";
	public static final String KEY_NAME = "name";
	public static final String KEY_LINK = "link";
	public static final String KEY_DESCRIPTION = "description";
	public static final String KEY_FILE_URL = "file_url";
	public static final String KEY_DOWNLOAD_URL = "download_url";
	public static final String KEY_PUBDATE = "pubDate";
	public static final String KEY_READ = "read";
	public static final String KEY_DURATION = "duration";
	public static final String KEY_POSITION = "position";
	public static final String KEY_SIZE = "filesize";
	public static final String KEY_MIME_TYPE = "mime_type";
	public static final String KEY_IMAGE = "image";
	public static final String KEY_FEED = "feed";
	public static final String KEY_MEDIA = "media";
	public static final String KEY_DOWNLOADED = "downloaded";
	public static final String KEY_LASTUPDATE = "last_update";
	public static final String KEY_FEEDFILE = "feedfile";
	public static final String KEY_REASON = "reason";
	public static final String KEY_SUCCESSFUL = "successful";
	public static final String KEY_FEEDFILETYPE = "feedfile_type";
	public static final String KEY_COMPLETION_DATE = "completion_date";
	public static final String KEY_FEEDITEM = "feeditem";
	public static final String KEY_CONTENT_ENCODED = "content_encoded";
	public static final String KEY_PAYMENT_LINK = "payment_link";
	public static final String KEY_START = "start";
	public static final String KEY_LANGUAGE = "language";
	public static final String KEY_AUTHOR = "author";
	public static final String KEY_HAS_SIMPLECHAPTERS = "has_simple_chapters";

	// Table names
	public static final String TABLE_NAME_FEEDS = "Feeds";
	public static final String TABLE_NAME_FEED_ITEMS = "FeedItems";
	public static final String TABLE_NAME_FEED_IMAGES = "FeedImages";
	public static final String TABLE_NAME_FEED_MEDIA = "FeedMedia";
	public static final String TABLE_NAME_DOWNLOAD_LOG = "DownloadLog";
	public static final String TABLE_NAME_QUEUE = "Queue";
	public static final String TABLE_NAME_SIMPLECHAPTERS = "SimpleChapters";

	// SQL Statements for creating new tables
	private static final String TABLE_PRIMARY_KEY = KEY_ID
			+ " INTEGER PRIMARY KEY AUTOINCREMENT ,";
	
	private static final String CREATE_TABLE_FEEDS = "CREATE TABLE "
			+ TABLE_NAME_FEEDS + " (" + TABLE_PRIMARY_KEY + 
			KEY_TITLE + " TEXT," + 
			KEY_FILE_URL + " TEXT," + 
			KEY_DOWNLOAD_URL + " TEXT," +
			KEY_DOWNLOADED + " INTEGER," + 
			KEY_LINK + " TEXT," + 
			KEY_DESCRIPTION + " TEXT," +
			KEY_PAYMENT_LINK + " TEXT," + 
			KEY_LASTUPDATE + " TEXT," +
			KEY_LANGUAGE + " TEXT," +
			KEY_AUTHOR + " TEXT," +
			KEY_IMAGE + " INTEGER)";
;

	private static final String CREATE_TABLE_FEED_ITEMS = "CREATE TABLE "
			+ TABLE_NAME_FEED_ITEMS + " (" + TABLE_PRIMARY_KEY + 
			KEY_TITLE + " TEXT," + 
			KEY_CONTENT_ENCODED + " TEXT," + 
			KEY_PUBDATE + " INTEGER," +	
			KEY_READ + " INTEGER," + 
			KEY_LINK + " TEXT," + 
			KEY_DESCRIPTION + " TEXT," + 
			KEY_PAYMENT_LINK + " TEXT," + 
			KEY_MEDIA + " INTEGER," + 
			KEY_FEED + " INTEGER," + 
			KEY_HAS_SIMPLECHAPTERS + " INTEGER)";

	private static final String CREATE_TABLE_FEED_IMAGES = "CREATE TABLE "
			+ TABLE_NAME_FEED_IMAGES + " (" + TABLE_PRIMARY_KEY + 
			KEY_TITLE + " TEXT," + 
			KEY_FILE_URL + " TEXT," + 
			KEY_DOWNLOAD_URL + " TEXT,"
			+ KEY_DOWNLOADED + " INTEGER)";

	private static final String CREATE_TABLE_FEED_MEDIA = "CREATE TABLE "
			+ TABLE_NAME_FEED_MEDIA + " (" + TABLE_PRIMARY_KEY + 
			KEY_DURATION + " INTEGER," + 
			KEY_FILE_URL + " TEXT," +
			KEY_DOWNLOAD_URL + " TEXT," + 
			KEY_DOWNLOADED + " INTEGER," +
			KEY_POSITION + " INTEGER," + 
			KEY_SIZE + " INTEGER," +
			KEY_MIME_TYPE + " TEXT)";
			

	private static final String CREATE_TABLE_DOWNLOAD_LOG = "CREATE TABLE "
			+ TABLE_NAME_DOWNLOAD_LOG + " (" + TABLE_PRIMARY_KEY + 
			KEY_FEEDFILE + " INTEGER," + 
			KEY_FEEDFILETYPE + " INTEGER," + 
			KEY_REASON + " INTEGER," + 
			KEY_SUCCESSFUL + " INTEGER," + 
			KEY_COMPLETION_DATE + " INTEGER)";

	private static final String CREATE_TABLE_QUEUE = "CREATE TABLE "
			+ TABLE_NAME_QUEUE + "(" + KEY_ID + " INTEGER PRIMARY KEY,"
			+ KEY_FEEDITEM + " INTEGER," + KEY_FEED + " INTEGER)";

	private static final String CREATE_TABLE_SIMPLECHAPTERS = "CREATE TABLE "
			+ TABLE_NAME_SIMPLECHAPTERS + " (" + TABLE_PRIMARY_KEY + 
			KEY_TITLE + " TEXT," + 
			KEY_START + " INTEGER," + 
			KEY_FEEDITEM + " INTEGER)";

	/**
	 * Used for storing download status entries to determine the type of the
	 * Feedfile.
	 */
	public static final int FEEDFILETYPE_FEED = 0;
	public static final int FEEDFILETYPE_FEEDIMAGE = 1;
	public static final int FEEDFILETYPE_FEEDMEDIA = 2;

	private SQLiteDatabase db;
	private final Context context;
	private PodDBHelper helper;

	public PodDBAdapter(Context c) {
		this.context = c;
		helper = new PodDBHelper(context, DATABASE_NAME, null, DATABASE_VERSION);
	}

	public PodDBAdapter open() {
		if (db == null || !db.isOpen() || db.isReadOnly()) {
			if (AppConfig.DEBUG) Log.d(TAG, "Opening DB");
			try {
				db = helper.getWritableDatabase();
			} catch (SQLException ex) {
				ex.printStackTrace();
				db = helper.getReadableDatabase();
			}
		}
		return this;
	}

	public void close() {
		if (AppConfig.DEBUG) Log.d(TAG, "Closing DB");
		db.close();
	}

	/**
	 * Inserts or updates a feed entry
	 * 
	 * @return the id of the entry
	 * */
	public long setFeed(Feed feed) {
		ContentValues values = new ContentValues();
		values.put(KEY_TITLE, feed.getTitle());
		values.put(KEY_LINK, feed.getLink());
		values.put(KEY_DESCRIPTION, feed.getDescription());
		values.put(KEY_PAYMENT_LINK, feed.getPaymentLink());
		values.put(KEY_AUTHOR, feed.getAuthor());
		values.put(KEY_LANGUAGE, feed.getLanguage());
		if (feed.getImage() != null) {
			if (feed.getImage().getId() == 0) {
				setImage(feed.getImage());
			}
			values.put(KEY_IMAGE, feed.getImage().getId());
		}
		
		values.put(KEY_FILE_URL, feed.getFile_url());
		values.put(KEY_DOWNLOAD_URL, feed.getDownload_url());
		values.put(KEY_DOWNLOADED, feed.isDownloaded());
		values.put(KEY_LASTUPDATE, feed.getLastUpdate().getTime());
		if (feed.getId() == 0) {
			// Create new entry
			if (AppConfig.DEBUG) Log.d(this.toString(), "Inserting new Feed into db");
			feed.setId(db.insert(TABLE_NAME_FEEDS, null, values));
		} else {
			if (AppConfig.DEBUG) Log.d(this.toString(), "Updating existing Feed in db");
			db.update(TABLE_NAME_FEEDS, values, KEY_ID + "=?",
					new String[] { Long.toString(feed.getId()) });
		}
		return feed.getId();
	}

	/**
	 * Inserts or updates an image entry
	 * 
	 * @return the id of the entry
	 * */
	public long setImage(FeedImage image) {
		ContentValues values = new ContentValues();
		values.put(KEY_TITLE, image.getTitle());
		values.put(KEY_DOWNLOAD_URL, image.getDownload_url());
		values.put(KEY_DOWNLOADED, image.isDownloaded());
		values.put(KEY_FILE_URL, image.getFile_url());
		if (image.getId() == 0) {
			image.setId(db.insert(TABLE_NAME_FEED_IMAGES, null, values));
		} else {
			db.update(TABLE_NAME_FEED_IMAGES, values, KEY_ID + "=?",
					new String[] { String.valueOf(image.getId()) });
		}
		return image.getId();
	}

	/**
	 * Inserts or updates an image entry
	 * 
	 * @return the id of the entry
	 */
	public long setMedia(FeedMedia media) {
		ContentValues values = new ContentValues();
		values.put(KEY_DURATION, media.getDuration());
		values.put(KEY_POSITION, media.getPosition());
		values.put(KEY_SIZE, media.getSize());
		values.put(KEY_MIME_TYPE, media.getMime_type());
		values.put(KEY_DOWNLOAD_URL, media.getDownload_url());
		values.put(KEY_DOWNLOADED, media.isDownloaded());
		values.put(KEY_FILE_URL, media.getFile_url());
		if (media.getId() == 0) {
			media.setId(db.insert(TABLE_NAME_FEED_MEDIA, null, values));
		} else {
			db.update(TABLE_NAME_FEED_MEDIA, values, KEY_ID + "=?",
					new String[] { String.valueOf(media.getId()) });
		}
		return media.getId();
	}

	/**
	 * Insert all FeedItems of a feed and the feed object itself in a single
	 * transaction
	 */
	public void setCompleteFeed(Feed feed) {
		db.beginTransaction();
		setFeed(feed);
		for (FeedItem item : feed.getItems()) {
			setFeedItem(item);
		}
		db.setTransactionSuccessful();
		db.endTransaction();
	}

	public long setSingleFeedItem(FeedItem item) {
		db.beginTransaction();
		long result = setFeedItem(item);
		db.setTransactionSuccessful();
		db.endTransaction();
		return result;
	}

	/**
	 * Inserts or updates a feeditem entry
	 * 
	 * @return the id of the entry
	 */
	private long setFeedItem(FeedItem item) {
		ContentValues values = new ContentValues();
		values.put(KEY_TITLE, item.getTitle());
		values.put(KEY_LINK, item.getLink());
		values.put(KEY_DESCRIPTION, item.getDescription());
		values.put(KEY_CONTENT_ENCODED, item.getContentEncoded());
		values.put(KEY_PUBDATE, item.getPubDate().getTime());
		values.put(KEY_PAYMENT_LINK, item.getPaymentLink());
		if (item.getMedia() != null) {
			if (item.getMedia().getId() == 0) {
				setMedia(item.getMedia());
			}
			values.put(KEY_MEDIA, item.getMedia().getId());
		}
		if (item.getFeed().getId() == 0) {
			setFeed(item.getFeed());
		}
		values.put(KEY_FEED, item.getFeed().getId());
		values.put(KEY_READ, item.isRead());
		values.put(KEY_HAS_SIMPLECHAPTERS, item.getSimpleChapters() != null);
		if (item.getId() == 0) {
			item.setId(db.insert(TABLE_NAME_FEED_ITEMS, null, values));
		} else {
			db.update(TABLE_NAME_FEED_ITEMS, values, KEY_ID + "=?",
					new String[] { String.valueOf(item.getId()) });
		}
		if (item.getSimpleChapters() != null) {
			setSimpleChapters(item);
		}
		return item.getId();
	}

	public void setSimpleChapters(FeedItem item) {
		ContentValues values = new ContentValues();
		for (SimpleChapter chapter : item.getSimpleChapters()) {
			values.put(KEY_TITLE, chapter.getTitle());
			values.put(KEY_START, chapter.getStart());
			values.put(KEY_FEEDITEM, item.getId());
			if (chapter.getId() == 0) {
				chapter.setId(db
						.insert(TABLE_NAME_SIMPLECHAPTERS, null, values));
			} else {
				db.update(TABLE_NAME_SIMPLECHAPTERS, values, KEY_ID + "=?",
						new String[] { String.valueOf(chapter.getId()) });
			}
		}
	}

	/**
	 * Inserts or updates a download status.
	 * */
	public long setDownloadStatus(DownloadStatus status) {
		// Don't save failed downloads
		if (status.getFeedFile() != null) {
			ContentValues values = new ContentValues();
			values.put(KEY_FEEDFILE, status.getFeedFile().getId());
			if (status.getFeedFile().getClass() == Feed.class) {
				values.put(KEY_FEEDFILETYPE, FEEDFILETYPE_FEED);
			} else if (status.getFeedFile().getClass() == FeedImage.class) {
				values.put(KEY_FEEDFILETYPE, FEEDFILETYPE_FEEDIMAGE);
			} else if (status.getFeedFile().getClass() == FeedMedia.class) {
				values.put(KEY_FEEDFILETYPE, FEEDFILETYPE_FEEDMEDIA);
			}

			values.put(KEY_REASON, status.getReason());
			values.put(KEY_SUCCESSFUL, status.isSuccessful());
			values.put(KEY_COMPLETION_DATE, status.getCompletionDate()
					.getTime());
			if (status.getId() == 0) {
				status.setId(db.insert(TABLE_NAME_DOWNLOAD_LOG, null, values));
			} else {
				db.update(TABLE_NAME_DOWNLOAD_LOG, values, KEY_ID + "=?",
						new String[] { String.valueOf(status.getId()) });
			}
		}
		return status.getId();
	}

	public void setQueue(List<FeedItem> queue) {
		ContentValues values = new ContentValues();
		db.delete(TABLE_NAME_QUEUE, null, null);
		for (int i = 0; i < queue.size(); i++) {
			FeedItem item = queue.get(i);
			values.put(KEY_ID, i);
			values.put(KEY_FEEDITEM, item.getId());
			values.put(KEY_FEED, item.getFeed().getId());
			db.insertWithOnConflict(TABLE_NAME_QUEUE, null, values,
					SQLiteDatabase.CONFLICT_REPLACE);
		}
	}

	public void removeFeedMedia(FeedMedia media) {
		db.delete(TABLE_NAME_FEED_MEDIA, KEY_ID + "=?",
				new String[] { String.valueOf(media.getId()) });
	}

	public void removeFeedImage(FeedImage image) {
		db.delete(TABLE_NAME_FEED_IMAGES, KEY_ID + "=?",
				new String[] { String.valueOf(image.getId()) });
	}

	/** Remove a FeedItem and its FeedMedia entry. */
	public void removeFeedItem(FeedItem item) {
		if (item.getMedia() != null) {
			removeFeedMedia(item.getMedia());
		}
		db.delete(TABLE_NAME_FEED_ITEMS, KEY_ID + "=?",
				new String[] { String.valueOf(item.getId()) });
	}

	/** Remove a feed with all its FeedItems and Media entries. */
	public void removeFeed(Feed feed) {
		if (feed.getImage() != null) {
			removeFeedImage(feed.getImage());
		}
		for (FeedItem item : feed.getItems()) {
			removeFeedItem(item);
		}
		db.delete(TABLE_NAME_FEEDS, KEY_ID + "=?",
				new String[] { String.valueOf(feed.getId()) });
	}

	public void removeDownloadStatus(DownloadStatus remove) {
		db.delete(TABLE_NAME_DOWNLOAD_LOG, KEY_ID + "=?",
				new String[] { String.valueOf(remove.getId()) });
	}


	/**
	 * Get all Feeds from the Feed Table.
	 * 
	 * @return The cursor of the query
	 * */
	public final Cursor getAllFeedsCursor() {
		open();
		Cursor c = db.query(TABLE_NAME_FEEDS, null, null, null, null, null,
				null);
		return c;
	}

	/**
	 * Returns a cursor with all FeedItems of a Feed.
	 * 
	 * @param feed
	 *            The feed you want to get the FeedItems from.
	 * @return The cursor of the query
	 * */
	public final Cursor getAllItemsOfFeedCursor(final Feed feed) {
		open();
		Cursor c = db
				.query(TABLE_NAME_FEED_ITEMS, null, KEY_FEED + "=?",
						new String[] { String.valueOf(feed.getId()) }, null,
						null, null);
		return c;
	}

	/**
	 * Returns a cursor for a DB query in the FeedMedia table for a given ID.
	 * 
	 * @param item
	 *            The item you want to get the FeedMedia from
	 * @return The cursor of the query
	 * */
	public final Cursor getFeedMediaOfItemCursor(final FeedItem item) {
		open();
		Cursor c = db.query(TABLE_NAME_FEED_MEDIA, null, KEY_ID + "=?",
				new String[] { String.valueOf(item.getMedia().getId()) }, null,
				null, null);
		return c;
	}

	/**
	 * Returns a cursor for a DB query in the FeedImages table for a given ID.
	 * 
	 * @param id
	 *            ID of the FeedImage
	 * @return The cursor of the query
	 * */
	public final Cursor getImageOfFeedCursor(final long id) {
		open();
		Cursor c = db.query(TABLE_NAME_FEED_IMAGES, null, KEY_ID + "=?",
				new String[] { String.valueOf(id) }, null, null, null);
		return c;
	}

	public final Cursor getSimpleChaptersOfFeedItemCursor(final FeedItem item) {
		open();
		Cursor c = db
				.query(TABLE_NAME_SIMPLECHAPTERS, null, KEY_FEEDITEM + "=?",
						new String[] { String.valueOf(item.getId()) }, null,
						null, null);
		return c;
	}

	public final Cursor getDownloadLogCursor() {
		open();
		Cursor c = db.query(TABLE_NAME_DOWNLOAD_LOG, null, null, null, null,
				null, null);
		return c;
	}

	public final Cursor getQueueCursor() {
		open();
		Cursor c = db.query(TABLE_NAME_QUEUE, null, null, null, null, null,
				null);
		return c;
	}

	/**
	 * Get a FeedMedia object from the Database.
	 * 
	 * @param rowIndex
	 *            DB Index of Media object
	 * @param owner
	 *            FeedItem the Media object belongs to
	 * @return A newly created FeedMedia object
	 * */
	public final FeedMedia getFeedMedia(final long rowIndex,
			final FeedItem owner) throws SQLException {
		Cursor cursor = db.query(TABLE_NAME_FEED_MEDIA, null, KEY_ID + "=?",
				new String[] { String.valueOf(rowIndex) }, null, null, null);
		if (!cursor.moveToFirst()) {
			throw new SQLException("No FeedMedia found at index: " + rowIndex);
		}
		FeedMedia media = new FeedMedia(rowIndex, owner, cursor.getInt(cursor
				.getColumnIndex(KEY_DURATION)), cursor.getInt(cursor
				.getColumnIndex(KEY_POSITION)), cursor.getLong(cursor
				.getColumnIndex(KEY_SIZE)), cursor.getString(cursor
				.getColumnIndex(KEY_MIME_TYPE)), cursor.getString(cursor
				.getColumnIndex(KEY_FILE_URL)), cursor.getString(cursor
				.getColumnIndex(KEY_DOWNLOAD_URL)), cursor.getInt(cursor
				.getColumnIndex(KEY_DOWNLOADED)) > 0);
		cursor.close();
		return media;
	}

	public final Cursor getFeedMediaCursor(String... mediaIds) {
		return db.query(TABLE_NAME_FEED_MEDIA, null, KEY_ID + " IN "
				+ buildInOperator(mediaIds.length), mediaIds, null, null, null);
	}

	/** Builds an IN-operator argument depending on the number of items. */
	private String buildInOperator(int size) {
		StringBuffer buffer = new StringBuffer("(");
		for (int i = 0; i <= size; i++) {
			buffer.append("?,");
		}
		buffer.append("?)");
		return buffer.toString();
	}

	/**
	 * Searches the DB for a FeedImage of the given id.
	 * 
	 * @param id
	 *            The id of the object
	 * @return The found object
	 * */
	public final FeedImage getFeedImage(final long id) throws SQLException {
		Cursor cursor = this.getImageOfFeedCursor(id);
		if ((cursor.getCount() == 0) || !cursor.moveToFirst()) {
			throw new SQLException("No FeedImage found at index: " + id);
		}
		FeedImage image = new FeedImage(id, cursor.getString(cursor
				.getColumnIndex(KEY_TITLE)), cursor.getString(cursor
				.getColumnIndex(KEY_FILE_URL)), cursor.getString(cursor
				.getColumnIndex(KEY_DOWNLOAD_URL)), cursor.getInt(cursor
				.getColumnIndex(KEY_DOWNLOADED)) > 0);
		cursor.close();
		return image;
	}

	/** Helper class for opening the Antennapod database. */
	private static class PodDBHelper extends SQLiteOpenHelper {

		/**
		 * Constructor.
		 * 
		 * @param context
		 *            Context to use
		 * @param name
		 *            Name of the database
		 * @param factory
		 *            to use for creating cursor objects
		 * @param version
		 *            number of the database
		 * */
		public PodDBHelper(final Context context, final String name,
				final CursorFactory factory, final int version) {
			super(context, name, factory, version);
		}

		@Override
		public void onCreate(final SQLiteDatabase db) {
			db.execSQL(CREATE_TABLE_FEEDS);
			db.execSQL(CREATE_TABLE_FEED_ITEMS);
			db.execSQL(CREATE_TABLE_FEED_IMAGES);
			db.execSQL(CREATE_TABLE_FEED_MEDIA);
			db.execSQL(CREATE_TABLE_DOWNLOAD_LOG);
			db.execSQL(CREATE_TABLE_QUEUE);
			db.execSQL(CREATE_TABLE_SIMPLECHAPTERS);
		}

		@Override
		public void onUpgrade(final SQLiteDatabase db, final int oldVersion,
				final int newVersion) {
			Log.w("DBAdapter", "Upgrading from version " + oldVersion + " to "
					+ newVersion + ".");
			// TODO delete Database
		}
	}

}