package nextrek.arse.service;

import nextrek.math.Matrix;
import android.location.Location;

public class ARData {
    public static float MT = 6.0f;
    private static float WORLD_RADIUS_MT = 6371.0f * MT;

    public static double refLong;
    public static double refAlt;
    public static double refLat;

    public static void setRef(double longitude, double altitude, double latitude) {
        refLong = longitude;
        refAlt = altitude;
        refLat = latitude;
        //Log.d(TAG, "lal: " + refLong + " " + refAlt + " " + refLat);
    }

    public static float getX(double longitude) {
        return (float) (refLong - longitude) * WORLD_RADIUS_MT;
    }

    public static float getZ(double latitude) {
        return (float) (refLat - latitude) * WORLD_RADIUS_MT;
    }

    public static float getY(double altitude) {
        return (float) (refAlt - altitude) * MT;
    }

    public static final Location hardFix = new Location("ATL");
    static {
        // long = x
        hardFix.setLongitude(12.485425f);
        // lat = z
        hardFix.setLatitude(41.855234f);
        hardFix.setAltitude(1.0f);
    }

    private static Location currentLocation = hardFix;
    private static Matrix rotationMatrix = new Matrix();

    public static Location getCurrentLocation() {
        synchronized (ARData.currentLocation) {
            return ARData.currentLocation;
        }
    }

    /**
     * Set the current location.
     * 
     * @param currentLocation
     *            Location to set.
     * @throws NullPointerException
     *             if Location param is NULL.
     */
    public static void setCurrentLocation(Location currentLocation) {
        if (currentLocation == null)
            throw new NullPointerException();

        //Log.d(TAG, "current location. location=" + currentLocation.toString());
        synchronized (currentLocation) {
            ARData.currentLocation = currentLocation;
        }
    }

    /**
     * Set the rotation matrix.
     * 
     * @param rotationMatrix
     *            Matrix to use for rotation.
     */
    public static void setRotationMatrix(Matrix rotationMatrix) {
        synchronized (ARData.rotationMatrix) {
            ARData.rotationMatrix = rotationMatrix;
        }
    }

    /**
     * Get the rotation matrix.
     * 
     * @return Matrix representing the rotation matrix.
     */
    public static Matrix getRotationMatrix() {
        synchronized (ARData.rotationMatrix) {
            return rotationMatrix;
        }
    }

}