/*
 * Southampton University Map App
 * Copyright (C) 2011  Christopher Baines
 * 
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package net.cbaines.suma;

import java.util.ArrayList;

import org.osmdroid.util.GeoPoint;

import android.location.Location;
import android.util.Log;

public class Util {

	private static final String TAG = "Util";

	public static GeoPoint csLatLongToGeoPoint(String lat, String lng) {
		try {
			double dLat = Double.valueOf(lat).doubleValue();
			double dLng = Double.valueOf(lng).doubleValue();
			int iLat = (int) (dLat * 1e6);
			int iLng = (int) (dLng * 1e6);
			return new GeoPoint(iLat, iLng);
		} catch (NumberFormatException e) {
			Log.e(TAG, "Error formating " + lat + " " + lng, e);
			throw e;
		}
	}

	public static GeoPoint ssLatLongToGeoPoint(String lat, String lng) {
		try {

			double dLat = Double.valueOf(lat).doubleValue();
			double dLng = Double.valueOf(lng).doubleValue();
			int iLat = (int) (dLat * 1e6);
			int iLng = (int) (dLng * 1e6);
			return new GeoPoint(iLat, iLng);
		} catch (NumberFormatException e) {
			Log.e(TAG, "Error formating " + lat + " " + lng, e);
			throw e;
		}
	}

	public static Polygon csPolygonToPolygon(String str) {
		// Log.i(TAG, "Getting poly from " + str);
		ArrayList<GeoPoint> geoPoints = new ArrayList<GeoPoint>();

		String[] latLongPoints = str.split(",");
		for (int point = 0; point < latLongPoints.length; point++) {
			// Log.i(TAG, "LatLong point " + point + " " +
			// latLongPoints[point]);

			String[] latLongs = latLongPoints[point].split(" ");
			GeoPoint geoPoint = ssLatLongToGeoPoint(latLongs[1], latLongs[0]);
			geoPoints.add(geoPoint);
		}

		return new Polygon(geoPoints.toArray(new GeoPoint[0]));
	}

	public static int doubleToIntE6(double dub) {
		return (int) (dub * 1e6);
	}

	public static double E6IntToDouble(int integer) {
		return (double) (integer / 1e6);
	}

	public static GeoPoint locationToGeoPoint(Location loc) {
		return new GeoPoint(doubleToIntE6(loc.getLatitude()), doubleToIntE6(loc.getLongitude()));
	}

	public static Location geoPointToLocation(GeoPoint point) {
		Location loc = new Location("");
		loc.setLatitude(E6IntToDouble(point.getLatitudeE6()));
		loc.setLongitude(E6IntToDouble(point.getLongitudeE6()));
		return loc;
	}

}