package org.mongodb.morphia.geo;

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

Represents a GeoJSON LineString type.  Will be persisted into the database according to the
specification.
 The factory for creating a LineString is the GeoJson.lineString method. 
See Also:
GeoJson.lineString(Point...)/**
 * Represents a GeoJSON LineString type.  Will be persisted into the database according to <a href="http://geojson.org/geojson-spec
 * .html#id3">the
 * specification</a>.
 * <p/>
 * The factory for creating a LineString is the {@code GeoJson.lineString} method.
 *
 * @see org.mongodb.morphia.geo.GeoJson#lineString(Point...)
 */
public class LineString implements Geometry {
    private final List<Point> coordinates;

    @SuppressWarnings("UnusedDeclaration") // used by Morphia
    private LineString() {
        coordinates = new ArrayList<Point>();
    }

    LineString(final Point... points) {
        this.coordinates = Arrays.asList(points);
    }

    LineString(final List<Point> points) {
        coordinates = points;
    }

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

    @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;
        }

        LineString that = (LineString) o;

        if (!coordinates.equals(that.coordinates)) {
            return false;
        }

        return true;
    }

    @Override
    public String toString() {
        return "LineString{"
               + "coordinates=" + coordinates
               + '}';
    }
}