package org.mongodb.morphia.geo;

import org.mongodb.morphia.annotations.Embedded;
import org.mongodb.morphia.annotations.Entity;

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

Represents a GeoJSON Point type.  Will be persisted into the database according to the
specification. Therefore because of this, this entity will never have its own ID or store the its Class name.
 The builder for creating a Point is the GeoJson.pointBuilder method, or the helper GeoJson.point factory method. 
See Also:
GeoJson.point(double, double)/**
 * Represents a GeoJSON Point type.  Will be persisted into the database according to <a href="http://geojson.org/geojson-spec.html#id2">the
 * specification</a>. Therefore because of this, this entity will never have its own ID or store the its Class name.
 * <p/>
 * The builder for creating a Point is the {@code GeoJson.pointBuilder} method, or the helper {@code GeoJson.point} factory method.
 *
 * @see org.mongodb.morphia.geo.GeoJson#point(double, double)
 */
@Embedded
@Entity(noClassnameStored = true)
public class Point implements Geometry {
    private final List<Double> coordinates = new ArrayList<Double>();

    Point(final double latitude, final double longitude) {
        coordinates.add(longitude);
        coordinates.add(latitude);
    }

    Point(final List<Double> coordinates) {
        this.coordinates.addAll(coordinates);
    }

    @Override
    public List<Double> getCoordinates() {
        return coordinates;
    }

    
Return the latitude of this point.
Returns:
the Point's latitude/**
     * Return the latitude of this point.
     *
     * @return the Point's latitude
     */
    public double getLatitude() {
        return coordinates.get(1);
    }

    
Return the longitude of this point.
Returns:
the Point's longitude/**
     * Return the longitude of this point.
     *
     * @return the Point's longitude
     */
    public double getLongitude() {
        return coordinates.get(0);
    }

    @Override
    public int hashCode() {
        return coordinates.hashCode();
    }

    /* equals, hashCode and toString. Useful primarily for testing and debugging. Don't forget to re-create when changing this class */
    @Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        Point point = (Point) o;

        if (getCoordinates().size() != point.getCoordinates().size()) {
            return false;
        }
        for (int i = 0; i < coordinates.size(); i++) {
            final Double coordinate = coordinates.get(i);
            if (Double.compare(coordinate, point.getCoordinates().get(i)) != 0) {
                return false;
            }
        }

        return true;
    }

    @Override
    public String toString() {
        return String.format("Point{coordinates=%s}", coordinates);
    }
}